CN117287689B - A biomass carbon sequestration system and method - Google Patents
A biomass carbon sequestration system and method Download PDFInfo
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- CN117287689B CN117287689B CN202311420068.0A CN202311420068A CN117287689B CN 117287689 B CN117287689 B CN 117287689B CN 202311420068 A CN202311420068 A CN 202311420068A CN 117287689 B CN117287689 B CN 117287689B
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- 239000002028 Biomass Substances 0.000 title claims abstract description 85
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 54
- 229910052799 carbon Inorganic materials 0.000 title claims abstract description 54
- 238000000034 method Methods 0.000 title claims abstract description 26
- 230000009919 sequestration Effects 0.000 title claims abstract description 16
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims abstract description 612
- 229910002092 carbon dioxide Inorganic materials 0.000 claims abstract description 306
- 239000001569 carbon dioxide Substances 0.000 claims abstract description 306
- 238000002485 combustion reaction Methods 0.000 claims abstract description 89
- 238000011084 recovery Methods 0.000 claims abstract description 88
- 238000006243 chemical reaction Methods 0.000 claims abstract description 80
- 239000000779 smoke Substances 0.000 claims abstract description 38
- 239000000463 material Substances 0.000 claims abstract description 27
- 239000000428 dust Substances 0.000 claims abstract description 24
- 238000010438 heat treatment Methods 0.000 claims description 100
- 239000007788 liquid Substances 0.000 claims description 91
- 239000007789 gas Substances 0.000 claims description 63
- 238000007789 sealing Methods 0.000 claims description 61
- 238000000926 separation method Methods 0.000 claims description 54
- 238000003860 storage Methods 0.000 claims description 50
- 238000010521 absorption reaction Methods 0.000 claims description 32
- 238000009423 ventilation Methods 0.000 claims description 29
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 28
- HZAXFHJVJLSVMW-UHFFFAOYSA-N 2-Aminoethan-1-ol Chemical compound NCCO HZAXFHJVJLSVMW-UHFFFAOYSA-N 0.000 claims description 22
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 19
- 239000001301 oxygen Substances 0.000 claims description 19
- 229910052760 oxygen Inorganic materials 0.000 claims description 19
- 239000003546 flue gas Substances 0.000 claims description 16
- 238000006213 oxygenation reaction Methods 0.000 claims description 16
- 230000008569 process Effects 0.000 claims description 15
- 239000000446 fuel Substances 0.000 claims description 13
- 229910002091 carbon monoxide Inorganic materials 0.000 claims description 12
- 238000004064 recycling Methods 0.000 claims description 12
- 238000005086 pumping Methods 0.000 claims description 11
- 238000001816 cooling Methods 0.000 claims description 10
- 230000001174 ascending effect Effects 0.000 claims description 3
- 238000000748 compression moulding Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 claims description 3
- 239000011344 liquid material Substances 0.000 claims description 3
- 238000009826 distribution Methods 0.000 claims description 2
- 238000001914 filtration Methods 0.000 claims description 2
- 230000002265 prevention Effects 0.000 claims description 2
- 230000014759 maintenance of location Effects 0.000 claims 2
- 239000000243 solution Substances 0.000 description 16
- 238000005516 engineering process Methods 0.000 description 9
- 230000007613 environmental effect Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 230000007547 defect Effects 0.000 description 4
- 238000005265 energy consumption Methods 0.000 description 4
- 238000000605 extraction Methods 0.000 description 4
- 238000004134 energy conservation Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 206010063385 Intellectualisation Diseases 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000005431 greenhouse gas Substances 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 230000029553 photosynthesis Effects 0.000 description 1
- 238000010672 photosynthesis Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000004083 survival effect Effects 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23B—METHODS OR APPARATUS FOR COMBUSTION USING ONLY SOLID FUEL
- F23B10/00—Combustion apparatus characterised by the combination of two or more combustion chambers
- F23B10/02—Combustion apparatus characterised by the combination of two or more combustion chambers including separate secondary combustion chambers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
- F23J15/02—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material
- F23J15/022—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material for removing solid particulate material from the gasflow
- F23J15/025—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material for removing solid particulate material from the gasflow using filters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
- F23J15/02—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material
- F23J15/04—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material using washing fluids
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
- F23J15/06—Arrangements of devices for treating smoke or fumes of coolers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
- F23L5/00—Blast-producing apparatus before the fire
- F23L5/02—Arrangements of fans or blowers
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Treating Waste Gases (AREA)
Abstract
本发明涉及一种生物质碳封存系统及方法；加氧二次燃烧器的顶部设置有二次燃烧室，物料添加燃烧腔的底部设置有炉箅，炉箅的底部设置有收灰室，加氧二次燃烧器的一侧通过加氧管道与引风机相连通，二次燃烧室的顶部与过火道相连通，在热量转换箱内设置有热能回收转换器，烟尘过滤器内设置有可更换灰尘过滤片，烟尘过滤器通过气体逆流阀与一体化二氧化碳回收装置相连接；整体采用连贯的自动化智能化实现控制作业，能够根据生物质燃烧炉的运行状态实施控制，通过控制器实现部件之间的连接和顺畅的连贯封存作业，适合小规模推广使用，适合对二氧化碳源头实施灵活的选择收集作业。
The present invention relates to a biomass carbon sequestration system and method; a secondary combustion chamber is arranged on the top of an oxygen-added secondary burner, a grate is arranged at the bottom of a material adding combustion chamber, an ash collecting chamber is arranged at the bottom of the grate, one side of the oxygen-added secondary burner is connected with an induced draft fan through an oxygen-added pipeline, the top of the secondary combustion chamber is connected with a fire passage, a heat energy recovery converter is arranged in a heat conversion box, a replaceable dust filter is arranged in a smoke filter, and the smoke filter is connected with an integrated carbon dioxide recovery device through a gas reverse flow valve; the overall control operation is realized by continuous automation and intelligentization, the control can be implemented according to the operating state of the biomass combustion furnace, the connection between components and smooth and continuous sequestration operation are realized through a controller, the system is suitable for small-scale promotion and use, and is suitable for flexible selection and collection operations at the source of carbon dioxide.
Description
Technical Field
The invention relates to the field of advanced environmental protection industry in energy-saving environmental protection industry, in particular to a biomass carbon sealing and storing system and method.
Background
Studies have shown that in recent years, the greenhouse effect causes a series of serious environmental problems such as acceleration of glacier melting, frequent extreme weather, changes in the ocean warming temperature zone, etc. These environmental problems due to atmospheric pollution present an unprecedented threat to human survival and sustainable development. With the continuous rise of the carbon dioxide concentration in the atmosphere, measures for relieving and treating the atmospheric environmental pollution only by means of reducing emission obviously cannot effectively suppress the aggravation of the greenhouse effect problem.
Carbon capture and sequestration techniques may physically or chemically capture carbon dioxide before it is released to the atmosphere and then store it in deep sea or subsurface soil layers. The negative emission technique refers to a combination of novel techniques that are capable of absorbing and capturing carbon dioxide from the atmosphere. At present, the CCS technology and the NETs technology related in the traditional technology can play an important role in realizing the great reduction of the concentration of the CO 2 in the atmosphere. Unlike traditional CCS and nes technologies, the biomass carbon sequestration technology is a promising new negative emission technology, receiving great attention. The biomass carbon sequestration technology is a technology for realizing greenhouse gas negative emission by combining biomass energy and carbon dioxide capture and sequestration. The biomass carbon sequestration technology utilizes photosynthesis of plants to convert carbon dioxide in the atmosphere into organic matters, and the organic matters are accumulated and stored in the form of plant biomass, and the biomass can be directly used for burning to generate heat and energy or synthesizing natural gas or hydrogen and other high-value clean energy sources by chemical reaction. Carbon dioxide generated in the combustion process is captured, treated and injected into a suitable geological structure for permanent storage.
The traditional biomass carbon seal has the defects that firstly, in the running process of the traditional biomass carbon seal, the automation and intelligent control are weak, the overall consistency is not strong, the continuity is weak in the collecting process, the overall can not realize the high-efficiency recovery of carbon dioxide through the automation control, the energy consumption is high, the traditional biomass carbon seal can only be used in a large carbon dioxide emission area and a production position generally, the whole equipment is expensive and is not suitable for large-scale use and popularization, secondly, the traditional biomass carbon seal has the defects that the transportation form of the captured carbon dioxide is single, a single transportation mode is often adopted, the corresponding various output storage modes cannot be implemented according to the carbon capture amount and the specific external environment, the flexibility is lacked in the using process, the output instability or the occurrence of the phenomenon of reducing the collecting efficiency caused by the change of the carbon dioxide output amount, the carbon dioxide collecting concentration is reduced, the energy consumption is increased in the later sealing process, the whole heat conversion efficiency of the traditional biomass carbon seal can only be used in a large carbon dioxide emission area, the whole heat conversion efficiency is low in the using process, the part of the heat energy conversion is not obtained in the implementing the heat energy conversion process, and the heat energy efficiency is fully reduced in the process of the carbon dioxide conversion process, and the heat energy is fully utilized, and the heat energy efficiency is reduced in the process of the heat energy conversion is fully.
In summary, aiming at the defects of the prior art, the biomass carbon sealing system and the biomass carbon sealing method provided by the invention have the advantages of simple structure, convenience in operation, energy conservation, environmental protection, high intelligent degree, high automation degree, low energy consumption, high working and running efficiency, light application range, flexible output mode, capability of reasonably and effectively conveying and storing according to the output of carbon dioxide, high heat energy utilization rate, capability of ensuring the efficient collection of carbon dioxide, simplicity and easiness in operation, and wide market prospect.
Disclosure of Invention
Aiming at the defects of the prior art, the biomass carbon sealing system and the biomass carbon sealing method have the advantages of simple structure, convenient operation, energy conservation, environmental protection, high intelligent degree, high automation degree, low energy consumption, high working and running efficiency, light application range, flexible output mode, capability of reasonably and effectively conveying and storing according to the output quantity of carbon dioxide, high heat energy utilization rate, capability of ensuring the efficient collection of the carbon dioxide, simplicity and easiness in operation.
The biomass carbon sealing and storing system comprises a biomass combustion furnace, a heat conversion box communicated with the biomass combustion furnace through a fire passage, a smoke dust filter communicated with the heat conversion box through a pipeline, an oxygen adding secondary combustor fixedly arranged in the middle of an inner cavity of the biomass combustion furnace, a material adding combustion chamber arranged at the bottom of the oxygen adding secondary combustor, a secondary combustion chamber arranged at the top of the oxygen adding secondary combustor, a grate arranged at the bottom of the material adding combustion chamber, an ash collecting chamber arranged at the bottom of the grate, one side of the oxygen adding secondary combustor communicated with a draught fan through an oxygen adding pipeline, the top of the secondary combustion chamber communicated with the fire passage, a heat energy recovery converter arranged in the heat conversion box, a replaceable dust filter arranged in the smoke dust filter, and an integrated carbon dioxide recovery device connected with the smoke dust filter through a gas countercurrent valve.
The integrated carbon dioxide recovery device comprises a carbon dioxide recovery tank with the bottom communicated with a gas countercurrent valve, monoethanolamine solution is added in the carbon dioxide recovery tank, the bottom of the other side of the carbon dioxide recovery tank is communicated with a liquid extraction pipe through a first liquid extraction pump, the liquid extraction pipe is communicated with the top of the carbon dioxide separation tank, a central heating pipe with a heating coil is fixedly arranged in the central position of an inner cavity of the carbon dioxide separation tank, a plurality of heating reaction tanks with annular groove structures with openings at the tops are fixedly sleeved on the outer walls of the central heating pipe from top to bottom, the uppermost heating reaction tank is communicated with the bottom of the liquid extraction pipe, the two connected heating reaction tanks are communicated through a vertical communicating pipe, the bottommost heating reaction tank is communicated with the middle lower part of the carbon dioxide separation tank through a bottom outflow pipe, one side of the bottom of the carbon dioxide separation tank is communicated with a liquid recovery pump through a liquid recovery pipe, and the liquid recovery pump is communicated with the top of the carbon dioxide recovery tank through a pipeline;
The bottom of carbon dioxide knockout drum is provided with the switch board, be provided with the controller in the switch board, the controller is connected with electric heater through the wire, electric heater's output is connected with heating coil, the top opposite side of carbon dioxide knockout drum is linked together with the carbon dioxide output tube, the carbon dioxide output tube is linked together with the top of radiator, the bottom of radiator is linked together with gas compressor's input through the carbon dioxide recovery tube, gas compressor's output is linked together with the pipeline of installing gas three way solenoid valve, first drawing liquid pump, liquid recovery pump and be connected with the controller through the wire.
The heat conversion box is of a rectangular cavity structure, the fire passage is communicated with the middle part of one side of the heat conversion box, the heat recovery converter is of a square block structure capable of recovering heat energy provided by the fire passage, the heat recovery converter is located at the center of an inner cavity of the heat conversion box, the middle part of the other side of the heat conversion box is communicated with the smoke filter through a pipeline, and the replaceable dust filter sheet is movably inserted into the smoke filter through the top of the smoke filter.
The middle of the secondary oxygen adding burner is a circular ring, the upper part and the lower part of the secondary oxygen adding burner are of a mutually symmetrical funnel-shaped structure, a middle ventilation ring is arranged in the middle of the secondary oxygen adding burner, the top of the middle ventilation ring is communicated with the bottom of the upper flaring bin, the bottom of the middle ventilation ring is communicated with the top of the lower necking bin, the top of the material adding combustion cavity is communicated with the middle ventilation ring through the lower necking bin, the middle ventilation ring is communicated with the secondary combustion chamber through the upper flaring bin, the top outer wall of the upper flaring bin is fixedly connected with the inner wall of the biomass combustion furnace, the bottom outer wall of the lower necking bin is fixedly connected with the inner wall of the biomass combustion furnace, a cavity structure is arranged between the middle ventilation ring and the inner wall of the biomass combustion furnace, the cavity structure is communicated with the outlet of an oxygen adding pipeline, and oxygen adding holes are formed in the middle ventilation ring and the upper flaring bin.
The grate is positioned between the material adding combustion chamber and the ash collecting chamber, an igniter connected with an external ignition device is arranged in the material adding combustion chamber at one side of the upper part of the grate, an opening and closing sealing door is arranged on the biomass combustion furnace corresponding to the material adding combustion chamber, and the inlet end of the gas countercurrent valve is communicated with the outlet end of the smoke filter.
The carbon dioxide recovery tank is of a tank structure with a smoke outlet at the top, a liquid material adding pipe is arranged on one side of the smoke outlet, the top liquid level of monoethanolamine solution is located at the upper position of the longitudinal middle part of the carbon dioxide recovery tank, a touch display and a control key connected with a controller are arranged on the outer wall of a control cabinet, and a liquid extracting pipe electromagnetic valve electrically connected with the controller is arranged on the liquid recovery pipe.
The carbon dioxide separation tank is of a sealed tank structure, the top of the liquid suction pipe and the top of the carbon dioxide output pipe are symmetrically distributed on the top surface of the carbon dioxide separation tank, the central heating pipe is of a cylindrical tubular structure, the bottom of the central heating pipe is fixedly connected with the bottom wall of the carbon dioxide separation tank, the top of the central heating pipe is fixedly connected with the lower surface of the top wall of the carbon dioxide separation tank, and the heating coil is of a single spiral structure at the junction of the outer side of the heating coil and the inner wall of the central heating pipe.
The top of heating reaction tank be linked together with the inner chamber of carbon dioxide knockout drum, the internal diameter of heating reaction tank cooperatees with the outer wall of central heating pipe, the external diameter of heating reaction tank is not greater than the internal diameter of carbon dioxide knockout drum, be provided with the gas back-pumping chamber in the carbon dioxide knockout drum, the top of gas back-pumping chamber is linked together with the bottom of carbon dioxide output tube, the heating reaction tank is two at least, all heating reaction tank top-down equal distribution is in the outer wall of central heating pipe, the length of the bottom outlet pipe of bottom heating reaction tank below is the half of the bottom outlet pipe length that is located upper portion, the bottom surface of bottom outlet pipe of bottom is located the top of carbon dioxide knockout drum diapire, the length between the bottom wall of carbon dioxide knockout drum diapire and the bottom outlet pipe bottom surface of bottom is not less than the thickness of heating reaction tank.
The radiator is internally provided with radiating fins which are distributed on the inner wall of the radiator in an up-down staggered mode, the radiator is of a rectangular cavity structure, a first supporting table is arranged at the bottom of the radiator, the bottom of the first supporting table is fixedly connected with the top of the gas compressor, a second supporting table is arranged at the bottom of the gas compressor, a bottom supporting frame is arranged below the second supporting table, the bottom of a carbon dioxide output pipe is positioned at the top of one side of the radiator, the top of a carbon dioxide recovery pipe is positioned at the bottom of the other side of the radiator, the bottom of the carbon dioxide recovery pipe is positioned at the top of one side of the gas compressor, the top of a pipeline provided with a gas three-way electromagnetic valve is positioned at the bottom of the other side of the gas compressor, and a clamping fixing hole for clamping the pipeline provided with the gas three-way electromagnetic valve is formed in the top bedplate;
An outlet at one side of the three-way electromagnetic valve is communicated with a carbon dioxide long-distance conveying pipeline through an anti-backflow valve, a pipeline supporting frame is arranged below the carbon dioxide long-distance conveying pipeline, the other end of the carbon dioxide long-distance conveying pipeline is communicated with a connecting valve, the connecting valve is communicated with a secondary pressurizing conveyor through a switching three-way pipeline, the secondary pressurizing conveyor is communicated with one side of a carbon sealing cavity positioned underground through a pipeline with an air inlet descending control valve, the other side of the carbon sealing cavity is communicated with the bottom of an output pipeline provided with an ascending control valve, and a secondary safety control valve is arranged at the top of the output pipeline;
The outlet of the other side of the three-way electromagnetic valve is communicated with the top of a carbon dioxide pressurizing storage tank movably arranged below the bottom supporting frame through a storage tank high-pressure one-way valve, serial pressurizing sealing valves matched with the connecting valve and the switching three-way pipeline are arranged in the middle of the front side and the middle of the rear side of the carbon dioxide pressurizing storage tank, and the serial pressurizing sealing valves are matched with serial pressurizing pipelines arranged outside.
The biomass carbon sealing method of the biomass carbon sealing system comprises the following steps:
S1, opening an opening and closing sealing door, adding biomass fuel which is subjected to compression molding in advance into a material adding combustion cavity, then closing the opening and closing sealing door, starting an igniter to ignite the biomass fuel, slowly burning the biomass fuel in the material adding combustion cavity, generating a large amount of carbon monoxide in the burning process, enabling the carbon monoxide to enter a middle ventilation ring through a lower necking bin, starting an external induced draft fan, enabling external air to enter the middle ventilation ring and an upper flaring bin inner cavity through an oxygenation hole, and fully burning the carbon monoxide which is insufficiently generated by burning after mixing with oxygen injected from the outside in a secondary combustion chamber:
S2, continuously advancing flame of the secondary combustion chamber in the flame passing channel towards the direction of the heat conversion box, recovering heat energy in the heat conversion box through the heat energy recovery converter, generating carbon dioxide in the heat energy recovery process, enabling flue gas containing high-concentration carbon dioxide to enter a smoke filter, filtering dust through a replaceable dust filter plate, and enabling the flue gas to enter the bottom of the carbon dioxide recovery tank through a gas countercurrent valve;
S3, in the carbon dioxide recovery tank, high-temperature carbon dioxide and flue gas pass through the monoethanolamine solution from bottom to top, wherein the carbon dioxide is absorbed by the monoethanolamine solution to form carbon dioxide absorption liquid, the redundant flue gas is discharged through a smoke outlet, and the carbon dioxide absorption liquid is pumped into the carbon dioxide separation tank through a liquid pumping pipe by a first liquid pumping pump;
S4, a heating reaction tank at the uppermost part in the carbon dioxide separation tank receives carbon dioxide absorption liquid discharged by the liquid suction pipe, an electric heater is started in advance to heat a heating coil, heat is transferred to a central heating pipe through the heating coil, the outer wall of the central heating pipe directly carries out thermal reaction on the carbon dioxide absorption liquid in the heating reaction tank, carbon dioxide in the carbon dioxide absorption liquid is resolved and separated from the carbon dioxide absorption liquid through heating, in the separation process, the carbon dioxide absorption liquid in the uppermost heating reaction tank continuously descends through a vertical communicating pipe, the resolving and separating of carbon dioxide in the carbon dioxide absorption liquid are fully completed in the descending process, and finally, the wholly resolved monoethanolamine solution flows into the bottom of the carbon dioxide separation tank again through the vertical communicating pipe at the bottommost;
s5, the monoethanolamine solution flowing into the bottom of the carbon dioxide separation tank is recycled into the carbon dioxide recovery tank through a liquid recovery pipe provided with a liquid suction pipe electromagnetic valve, the resolved and separated carbon dioxide is recycled into a radiator through a gas back suction cavity and a carbon dioxide output pipe, cooling treatment is carried out on the carbon dioxide through a cooling fin arranged in the radiator, and then the carbon dioxide is conveyed to a pipeline provided with a gas three-way electromagnetic valve through the carbon dioxide recovery pipe and a gas compressor;
S6, according to the preset working time of the biomass combustion furnace, the corresponding outlet end of the three-way electromagnetic valve is selectively opened, when the biomass combustion furnace performs single short-time operation, one side outlet of the biomass combustion furnace is communicated with a high-pressure one-way valve of the storage tank, the carbon dioxide output by the gas compressor is recycled through the carbon dioxide pressurized storage tank, and after recycling is completed, the carbon dioxide pressurized storage tank is subjected to storage and transportation operation; when the biomass combustion furnace operates for a long time, an outlet at the other side of the biomass combustion furnace is communicated with an anti-backflow valve, carbon dioxide output by a gas compressor is recovered through a carbon dioxide long-distance conveying pipeline, continuously output carbon dioxide is finally communicated with an inlet at one side of a switching three-way pipeline through a connecting valve, the conveyed carbon dioxide is conveyed to a pipeline with an air inlet descending control valve through a secondary pressurizing conveyor, finally the carbon dioxide is sealed and stored in a carbon sealing cavity, after the carbon dioxide pressurizing and storing storage tank recovered through the storing and conveying operation is conveyed to a position near the secondary pressurizing conveyor, a plurality of carbon dioxide pressurizing and storing tanks are connected in series in a serial connection mode, a serial connection pressurizing and sealing valve arranged at one side of the carbon dioxide pressurizing and storing tank at a starting position is communicated with a serial connection pressure-supplying pipeline, and the carbon dioxide in the carbon dioxide pressurizing and storing tank at a termination position is finally sealed and stored in the carbon sealing cavity;
And S7, when the carbon dioxide sealed in the carbon sealing cavity needs to be recycled, opening the upward-conveying control valve and the secondary safety control valve, outputting the carbon dioxide sealed in the carbon sealing cavity to a recycling end through an output pipeline or recycling the carbon dioxide in the carbon dioxide pressurized storage tank, and simultaneously directly recycling the carbon dioxide output by the gas compressor through the carbon dioxide pressurized storage tank when needed.
The invention has the following positive effects:
Firstly, the operation of sealing the biomass carbon is implemented by utilizing a mode that the integrated carbon dioxide recovery device is connected with the biomass furnace in series, the overall continuity is strong, carbon dioxide discharged by the biomass combustion furnace directly enters the sealing after being recovered, the control operation is implemented integrally by adopting continuous automation and intellectualization, the control can be implemented according to the operation state of the biomass combustion furnace, the connection between components and the smooth continuous sealing operation are realized through the controller, the device is suitable for small-scale popularization and use, and the device is suitable for implementing flexible selective collection operation on a carbon dioxide source.
And when the biomass combustion furnace runs for a long time or runs with larger power, the recovery and sealing operation is implemented through the long-distance carbon dioxide conveying pipeline, so that the flexible selection of the collection and transportation mode according to the collection and output of the carbon dioxide is realized, and the stability and practicability of the system in running are improved.
And the invention sets a heat recovery converter, can provide heat collection and transfer operation for various heat demands, and integrally operates in a closed space, thus improving the utilization efficiency of heat, and simultaneously, carbon dioxide can not escape, realizing high-efficiency recovery, and simultaneously, fully implementing utilization of heat, and improving the overall recovery capturing efficiency and the sealing efficiency.
Drawings
Fig. 1 is a schematic diagram of a partial front view structure of the present invention.
FIG. 2 is a schematic diagram of a partial front view of the present invention.
Fig. 3 is a schematic view of the internal structure of fig. 1 according to the present invention.
Fig.4 is a schematic view of the internal structure of fig. 2 according to the present invention.
FIG. 5 is a schematic diagram showing the usage status structure of the present invention.
FIG. 6 is a second schematic view of the usage status structure of the present invention.
FIG. 7 is a schematic diagram of the carbon sequestration end structure of FIG. 5 according to the present invention.
FIG. 8 is a schematic diagram of the carbon sequestration end structure of FIG. 6 according to the present invention.
Detailed Description
As shown in fig. 1, 2, 3, 4, 5, 6, 7 and 8, a biomass carbon sealing system comprises a biomass combustion furnace 1, a heat conversion box 6 communicated with the biomass combustion furnace 1 through a fire passage 5, a smoke dust filter 7 communicated with the heat conversion box 6 through a pipeline, an oxygenation secondary combustor 35 fixedly arranged in the middle of an inner cavity of the biomass combustion furnace 1, a material adding combustion chamber 39 arranged at the bottom of the oxygenation secondary combustor 35, a secondary combustion chamber 41 arranged at the top of the oxygenation secondary combustor 35, a grate 38 arranged at the bottom of the material adding combustion chamber 39, an ash collecting chamber 40 arranged at the bottom of the grate 38, one side of the oxygenation secondary combustor 35 communicated with a draught fan 3 through an oxygenation pipeline 4, the top of the secondary combustion chamber 41 communicated with the fire passage 5, a heat recovery converter 42 arranged in the heat conversion box 6, a replaceable dust filter 43 arranged in the smoke dust filter 7, and the smoke dust filter 7 connected with an integrated carbon dioxide recovery device through a gas countercurrent valve 8. The integrated carbon dioxide recovery device comprises a carbon dioxide recovery tank 9 with the bottom communicated with a gas countercurrent valve 8, monoethanolamine solution 44 is added in the carbon dioxide recovery tank 9, the bottom of the other side of the carbon dioxide recovery tank 9 is communicated with a liquid suction pipe 13 through a first liquid suction pump 12, the liquid suction pipe 13 is communicated with the top of a carbon dioxide separation tank 14, a central heating pipe 47 internally sleeved with a heating coil 48 is fixedly arranged at the central position of an inner cavity of the carbon dioxide separation tank 14, a plurality of heating reaction tanks 49 with annular groove structures with openings at the top are fixedly sleeved on the outer wall of the central heating pipe 47 from top to bottom, the uppermost heating reaction tank 49 is communicated with the bottom of the liquid suction pipe 13, two heating reaction tanks 49 connected with each other are communicated through a vertical communicating pipe 50, the bottommost heating reaction tank 49 is communicated with the middle lower part of the carbon dioxide separation tank 14 through a bottom outflow pipe 51, one side of the bottom of the carbon dioxide separation tank 14 is communicated with a liquid recovery pump 25 through a liquid recovery pipe 32, the liquid recovery pump 25 is communicated with the top of the carbon dioxide recovery tank 9 through a pipeline, a control cabinet 15 is arranged at the bottom of the carbon dioxide separation tank 14, a controller 45 is arranged in the control cabinet 15, a plurality of annular grooves with each other side of the heating reaction tanks are fixedly sleeved with a plurality of annular grooves with an annular groove structures with openings at the top, the top of the heating reaction tank 49 is communicated with the top of the carbon dioxide separation tank, the carbon dioxide separation tank is communicated with an output pipe 22 through a three-way valve 18, the air compressor and a heat pipe is communicated with the top of the air compressor, the air inlet pipe is communicated with the air inlet pipe and the air is communicated with the air through a compressor and the air outlet pipe 18, the air is communicated with the air through the air inlet pipe 18, the air inlet and the air is communicated with the air through the air inlet and the air, the air outlet pipe is communicated with the air through the air inlet and the air through the air channel and the air channel, the first liquid pump 12, the liquid recovery pump 25 and the controller 45 are connected by wires.
The heat conversion box 6 is of a rectangular cavity structure, the fire passage 5 is communicated with the middle part of one side of the heat conversion box 6, the heat recovery converter 42 is of a square block structure capable of recovering heat provided by the fire passage 5, the heat recovery converter 42 is located at the center of an inner cavity of the heat conversion box 6, the middle part of the other side of the heat conversion box 6 is communicated with the smoke filter 7 through a pipeline, and the replaceable dust filter sheet 43 is movably inserted into the smoke filter 7 through the top of the smoke filter 7. The secondary oxygen adding burner 35 is of a funnel-shaped structure with a circular ring in the middle and symmetrical upper and lower parts, a middle ventilation ring 35-3 is arranged in the middle of the secondary oxygen adding burner 35, the top of the middle ventilation ring 35-3 is communicated with the bottom of the upper flaring bin 35-1, the bottom of the middle ventilation ring 35-3 is communicated with the top of the lower necking bin 35-2, the top of the material adding combustion chamber 39 is communicated with the middle ventilation ring 35-3 through the lower necking bin 35-2, the middle ventilation ring 35-3 is communicated with the secondary combustion chamber 41 through the upper flaring bin 35-1, the top outer wall of the upper flaring bin 35-1 is fixedly connected with the inner wall of the biomass combustion furnace 1, a cavity structure is arranged between the bottom outer wall of the lower necking bin 35-2 and the inner wall of the biomass combustion furnace 1, the cavity structure is communicated with the outlet of the oxygen adding pipeline 4, and oxygen adding holes 36 are formed in the middle ventilation ring 35-3 and the upper bin 35-1. The grate 38 is positioned between the material adding combustion chamber 39 and the ash collecting chamber 40, an igniter 37 connected with an external ignition device is arranged in the material adding combustion chamber 39 at one side of the upper part of the grate 38, an opening and closing sealing door 2 is arranged on the biomass combustion furnace 1 corresponding to the material adding combustion chamber 39, and the inlet end of the gas countercurrent valve 8 is communicated with the outlet end of the smoke filter 7.
The carbon dioxide recovery tank 9 is of a tank structure with a smoke outlet 11 at the top, a liquid material adding pipe 10 is arranged on one side of the smoke outlet 11, the top liquid level of monoethanolamine solution 44 is located at the upper position of the longitudinal middle part of the carbon dioxide recovery tank 9, a touch display 16 and a control key 17 connected with a controller 45 are arranged on the outer wall of a control cabinet 15, and a liquid extracting pipe electromagnetic valve 33 electrically connected with the controller 45 is arranged on a liquid recovery pipe 32. The carbon dioxide separation tank 14 is of a sealed tank structure, the top of the liquid suction pipe 13 and the top of the carbon dioxide output pipe 18 are symmetrically distributed on the top surface of the carbon dioxide separation tank 14, the central heating pipe 47 is of a cylindrical tubular structure, the bottom of the central heating pipe 47 is fixedly connected with the bottom wall of the carbon dioxide separation tank 14, the top of the central heating pipe 47 is fixedly connected with the lower surface of the top wall of the carbon dioxide separation tank 14, and the heating coil 48 is of a single spiral structure at the joint of the outer side and the inner wall of the central heating pipe 47. The top of the heating reaction tank 49 is communicated with the inner cavity of the carbon dioxide separation tank 14, the inner diameter of the heating reaction tank 49 is matched with the outer wall of the central heating pipe 47, the outer diameter of the heating reaction tank 49 is not larger than the inner diameter of the carbon dioxide separation tank 14, a gas back-pumping cavity 52 is arranged in the carbon dioxide separation tank 14, the top of the gas back-pumping cavity 52 is communicated with the bottom of the carbon dioxide output pipe 18, at least two heating reaction tanks 49 are arranged, all the heating reaction tanks 49 are uniformly distributed on the outer wall of the central heating pipe 47 from top to bottom, the length of a bottom outflow pipe 51 below the bottommost heating reaction tank 49 is one half of the length of the bottom outflow pipe 51 positioned at the upper part, the bottom surface of the bottommost bottom outflow pipe 51 is positioned above the bottom wall of the carbon dioxide separation tank 14, and the length between the bottom wall of the carbon dioxide separation tank 14 and the bottom surface of the bottommost bottom outflow pipe 51 is not smaller than the thickness of the heating reaction tank 49.
The radiator 19 is internally provided with radiating fins 53, the radiating fins 53 are distributed on the inner wall of the radiator 19 in a vertically staggered mode, the radiator 19 is of a rectangular cavity structure, a first supporting table 20 is arranged at the bottom of the radiator 19, the bottom of the first supporting table 20 is fixedly connected with the top of the gas compressor 22, a second supporting table 24 is arranged at the bottom of the gas compressor 22, a bottom supporting frame 29 is arranged below the second supporting table 24, the bottom of the carbon dioxide output pipe 18 is positioned at the top of one side of the radiator 19, the top of the carbon dioxide recovery pipe 21 is positioned at the bottom of the other side of the radiator 19, the bottom of the carbon dioxide recovery pipe 21 is positioned at the top of one side of the gas compressor 22, the top of a pipeline provided with the gas three-way electromagnetic valve 23 is positioned at the bottom of the top bedplate of the bottom supporting frame 29, and a clamping fixing hole for clamping the pipeline provided with the gas three-way electromagnetic valve 23 is formed in the bedplate at the top bedplate;
The outlet of one side of the three-way electromagnetic valve 23 is communicated with a carbon dioxide long-distance conveying pipeline 27 through an anti-backflow valve 26, a pipeline supporting frame 28 is arranged below the carbon dioxide long-distance conveying pipeline 27, the other end of the carbon dioxide long-distance conveying pipeline 27 is communicated with a connecting valve 56, the connecting valve 56 is communicated with a secondary pressurizing conveyor 57 through a switching three-way pipeline 55, the secondary pressurizing conveyor 57 is communicated with one side of a carbon sealing cavity 59 positioned underground through a pipeline with an air inlet descending control valve 58, the other side of the carbon sealing cavity 59 is communicated with the bottom of an output pipeline 61 provided with an ascending control valve 60, a secondary safety control valve 62 is arranged at the top of the output pipeline 61, the outlet of the other side of the three-way electromagnetic valve 23 is communicated with the top of a carbon dioxide pressurizing storage tank 31 movably arranged below the bottom supporting frame 29 through a storage tank high-pressure one-way valve 30, a serial pressurizing sealing valve 34 matched with the connecting valve 56 and the switching three-way pipeline 55 is arranged in the middle of the front side and the middle of the carbon dioxide pressurizing storage tank 31, and the serial pressurizing sealing valve 34 is matched with the serial pressurizing sealing valve 54 arranged outside.
In the first embodiment, when the biomass fuel injection device is operated, the opening and closing sealing door 2 is opened, the biomass fuel which is formed by compression in advance is added into the material adding combustion chamber 39, then the opening and closing sealing door 2 is closed, the igniter 37 is opened to ignite the biomass fuel, the biomass fuel is slowly combusted in the material adding combustion chamber 39, a large amount of carbon monoxide is generated in the combustion process, the carbon monoxide enters the middle ventilation ring 35-3 through the lower necking bin 35-2, the external induced draft fan 3 is opened, external air enters the middle ventilation ring 35-3 and the inner cavity of the upper flaring bin 35-1 through the oxygenation holes 36, and carbon monoxide which is insufficiently generated by combustion is fully combusted after being mixed with oxygen injected from the outside in the secondary combustion chamber 41. The flame of the secondary combustion chamber 41 continuously advances in the direction of the heat transfer box 6 in the flame path 5, heat energy is recovered in the heat transfer box 6 through the heat energy recovery converter 42, carbon dioxide is generated in the heat energy recovery process, flue gas containing high-concentration carbon dioxide enters the smoke filter 7, dust is filtered by the replaceable dust filter sheet 43, and then the flue gas enters the bottom of the carbon dioxide recovery tank 9 through the gas countercurrent valve 8.
In the carbon dioxide recovery tank 9, high-temperature carbon dioxide and flue gas pass through the monoethanolamine solution 44 from bottom to top, wherein the carbon dioxide is absorbed by the monoethanolamine solution 44 to form carbon dioxide absorption liquid, the redundant flue gas is discharged through the smoke outlet 11, and the carbon dioxide absorption liquid is pumped into the carbon dioxide separation tank 14 through the liquid pumping pipe 13 by the first liquid pumping pump 12. The uppermost heating reaction tank 49 in the carbon dioxide separation tank 14 receives the carbon dioxide absorption liquid discharged from the liquid suction pipe 13, the electric heater 46 is started in advance to heat the heating coil 48, heat is transferred to the central heating pipe 47 through the heating coil 48, the outer wall of the central heating pipe 47 directly carries out thermal reaction on the carbon dioxide absorption liquid in the heating reaction tank 49, carbon dioxide in the carbon dioxide absorption liquid is resolved and separated from the carbon dioxide absorption liquid through heating, in the separation process, the carbon dioxide absorption liquid in the uppermost heating reaction tank 49 continuously descends through the vertical communicating pipe 50, in the descending process, the resolving and separating of carbon dioxide in the carbon dioxide absorption liquid are fully completed, and finally, the wholly resolved monoethanolamine solution 44 flows into the bottom of the carbon dioxide separation tank 14 again through the bottom vertical communicating pipe 50. The monoethanolamine solution 44 flowing into the bottom of the carbon dioxide separation tank 14 is recovered into the carbon dioxide recovery tank 9 through the liquid recovery pipe 32 provided with the liquid suction pipe electromagnetic valve 33, the resolved and separated carbon dioxide is recovered into the radiator 19 through the gas back suction cavity 52 and the carbon dioxide output pipe 18, the carbon dioxide is subjected to cooling treatment through the cooling fins 53 installed in the radiator 19, and then the carbon dioxide is conveyed to a pipeline provided with the gas three-way electromagnetic valve 23 through the carbon dioxide recovery pipe 21 and the gas compressor 22.
When the biomass combustion furnace 1 is operated for a single short time, the outlet on one side of the biomass combustion furnace 1 is communicated with the storage tank high-pressure check valve 30, the carbon dioxide output from the gas compressor 22 is recovered by the carbon dioxide pressurized storage tank 31, and after the recovery is completed, the carbon dioxide pressurized storage tank 31 is subjected to storage and transportation operations. After the carbon dioxide pressurized storage tank 31 recovered through the storage and transportation operation is transported to a position near the secondary pressurized conveyor 57, a plurality of carbon dioxide pressurized storage tanks 31 are connected in series in a serial connection mode, a serial connection pressurized sealing valve 34 arranged on one side of the carbon dioxide pressurized storage tank 31 at the initial position is communicated with a serial connection pressure supply pipeline 54, a serial connection pressurized sealing valve 34 arranged on the other side of the carbon dioxide pressurized storage tank 31 at the final position is communicated with a connecting valve 56, and under the continuous operation of the serial connection pressure supply pipeline 54, carbon dioxide after being output in series is conveyed to a pipeline with an air inlet descending control valve 58 through the secondary pressurized conveyor 57, and finally the carbon dioxide is sealed in a carbon sealing cavity 59.
When the carbon dioxide sealed in the carbon sealing cavity 59 needs to be reused, the up-flow control valve 60 and the secondary safety control valve 62 are opened, the carbon dioxide sealed in the carbon sealing cavity 59 is output to the reuse end through the output pipeline 61 or recycled in the carbon dioxide pressurized storage tank 31, and meanwhile, the carbon dioxide output by the gas compressor 22 through the carbon dioxide pressurized storage tank 31 can be directly recycled when needed.
In the second embodiment, the opening and closing sealing door 2 is opened, the biomass fuel which is subjected to compression molding in advance is added into the material adding combustion chamber 39, then the opening and closing sealing door 2 is closed, the igniter 37 is opened to ignite the biomass fuel, the biomass fuel is slowly combusted in the material adding combustion chamber 39, a large amount of carbon monoxide is generated in the combustion process, the carbon monoxide enters the middle ventilation ring 35-3 through the lower necking bin 35-2, the external induced draft fan 3 is opened, external air enters the middle ventilation ring 35-3 and the inner cavity of the upper flaring bin 35-1 through the oxygenation holes 36, and the carbon monoxide which is insufficiently generated by combustion is fully combusted after being mixed with oxygen injected from the outside in the secondary combustion chamber 41. The flame of the secondary combustion chamber 41 continuously advances in the direction of the heat transfer box 6 in the flame path 5, heat energy is recovered in the heat transfer box 6 through the heat energy recovery converter 42, carbon dioxide is generated in the heat energy recovery process, flue gas containing high-concentration carbon dioxide enters the smoke filter 7, dust is filtered by the replaceable dust filter sheet 43, and then the flue gas enters the bottom of the carbon dioxide recovery tank 9 through the gas countercurrent valve 8.
In the carbon dioxide recovery tank 9, high-temperature carbon dioxide and flue gas pass through the monoethanolamine solution 44 from bottom to top, wherein the carbon dioxide is absorbed by the monoethanolamine solution 44 to form carbon dioxide absorption liquid, the redundant flue gas is discharged through the smoke outlet 11, and the carbon dioxide absorption liquid is pumped into the carbon dioxide separation tank 14 through the liquid pumping pipe 13 by the first liquid pumping pump 12. The uppermost heating reaction tank 49 in the carbon dioxide separation tank 14 receives the carbon dioxide absorption liquid discharged from the liquid suction pipe 13, the electric heater 46 is started in advance to heat the heating coil 48, heat is transferred to the central heating pipe 47 through the heating coil 48, the outer wall of the central heating pipe 47 directly carries out thermal reaction on the carbon dioxide absorption liquid in the heating reaction tank 49, carbon dioxide in the carbon dioxide absorption liquid is resolved and separated from the carbon dioxide absorption liquid through heating, in the separation process, the carbon dioxide absorption liquid in the uppermost heating reaction tank 49 continuously descends through the vertical communicating pipe 50, in the descending process, the resolving and separating of carbon dioxide in the carbon dioxide absorption liquid are fully completed, and finally, the wholly resolved monoethanolamine solution 44 flows into the bottom of the carbon dioxide separation tank 14 again through the bottom vertical communicating pipe 50. The monoethanolamine solution 44 flowing into the bottom of the carbon dioxide separation tank 14 is recovered into the carbon dioxide recovery tank 9 through the liquid recovery pipe 32 provided with the liquid suction pipe electromagnetic valve 33, the resolved and separated carbon dioxide is recovered into the radiator 19 through the gas back suction cavity 52 and the carbon dioxide output pipe 18, the carbon dioxide is subjected to cooling treatment through the cooling fins 53 installed in the radiator 19, and then the carbon dioxide is conveyed to a pipeline provided with the gas three-way electromagnetic valve 23 through the carbon dioxide recovery pipe 21 and the gas compressor 22.
When the biomass combustion furnace 1 operates for a long time, the outlet on the other side of the biomass combustion furnace 1 is communicated with the backflow prevention valve 26, carbon dioxide output by the gas compressor 22 is recovered through the carbon dioxide long-distance conveying pipeline 27, continuously output carbon dioxide is finally communicated with the inlet on one side of the switching three-way pipeline 55 through the connecting valve 56, conveyed carbon dioxide is conveyed to the pipeline with the air inlet descending control valve 58 through the secondary pressurizing conveyor 57, finally the carbon dioxide is stored in the carbon storage cavity 59, after the carbon dioxide pressurizing storage tank 31 recovered through storage and conveying operation is conveyed to the position near the secondary pressurizing conveyor 57, a plurality of carbon dioxide pressurizing storage tanks 31 are connected in series through a series connection mode, the series connection pressurizing sealing valve 34 arranged on one side of the carbon dioxide pressurizing storage tank 31 at the starting position is communicated with the series connection pressure feeding pipeline 54, the series connection pressurizing sealing valve 34 arranged on the other side of the carbon dioxide pressurizing storage tank 31 at the ending position is communicated with the connecting valve 56, and the carbon dioxide in the carbon dioxide pressurizing storage tank 31 is finally stored in the carbon storage cavity 59.
When the carbon dioxide sealed in the carbon sealing cavity 59 needs to be reused, the up-flow control valve 60 and the secondary safety control valve 62 are opened, the carbon dioxide sealed in the carbon sealing cavity 59 is output to the reuse end through the output pipeline 61 or recycled in the carbon dioxide pressurized storage tank 31, and meanwhile, the carbon dioxide output by the gas compressor 22 through the carbon dioxide pressurized storage tank 31 can be directly recycled when needed.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. A biomass carbon sealing system comprises a biomass combustion furnace (1), a heat conversion box (6) communicated with the biomass combustion furnace (1) through a flame path (5), and a smoke dust filter (7) communicated with the heat conversion box (6) through a pipeline, and is characterized in that an oxygenation secondary combustor (35) is fixedly arranged in the middle of an inner cavity of the biomass combustion furnace (1), a material adding combustion chamber (39) is arranged at the bottom of the oxygenation secondary combustor (35), a secondary combustion chamber (41) is arranged at the top of the oxygenation secondary combustor (35), a grate (38) is arranged at the bottom of the material adding combustion chamber (39), an ash collecting chamber (40) is arranged at the bottom of the grate (38), one side of the oxygenation secondary combustor (35) is communicated with a draught fan (3) through an oxygenation pipeline (4), a heat energy recycling converter (42) is arranged in the heat conversion box (6), a replaceable smoke dust filter (43) is arranged in the smoke dust filter (7), and the smoke dust filter (7) is connected with an integrated carbon dioxide recycling device through a countercurrent gas (8);
The integrated carbon dioxide recovery device comprises a carbon dioxide recovery tank (9) with the bottom communicated with a gas countercurrent valve (8), a monoethanolamine solution (44) is added in the carbon dioxide recovery tank (9), the bottom of the other side of the carbon dioxide recovery tank (9) is communicated with a liquid suction pipe (13) through a first liquid suction pump (12), the liquid suction pipe (13) is communicated with the top of a carbon dioxide separation tank (14), a central heating pipe (47) with a heating coil (48) sleeved inside is fixedly arranged at the central position of an inner cavity of the carbon dioxide separation tank (14), a plurality of heating reaction tanks (49) with annular groove structures with openings at the top are fixedly sleeved on the outer wall of the central heating pipe (47) from top to bottom, the uppermost heating reaction tank (49) is communicated with the bottom of the liquid suction pipe (13), the two connected heating reaction tanks (49) are communicated through a vertical communicating pipe (50), the bottommost heating reaction tank (49) is communicated with the middle lower part of the carbon dioxide separation tank (14) through a bottom outflow pipe (51), one side of the carbon dioxide separation tank (14) is communicated with a liquid recovery pump (25) through a liquid pipe (32), and the top of the carbon dioxide recovery tank (9) is communicated with the liquid recovery pump (25);
The bottom of the carbon dioxide separation tank (14) is provided with a control cabinet (15), a controller (45) is arranged in the control cabinet (15), the controller (45) is connected with an electric heater (46) through a wire, the output end of the electric heater (46) is connected with a heating coil (48), the other side of the top of the carbon dioxide separation tank (14) is communicated with a carbon dioxide output pipe (18), the carbon dioxide output pipe (18) is communicated with the top of a radiator (19), the bottom of the radiator (19) is communicated with the input end of a gas compressor (22) through a carbon dioxide recovery pipe (21), the output end of the gas compressor (22) is communicated with a pipeline provided with a gas three-way electromagnetic valve (23), and the gas three-way electromagnetic valve (23), a first liquid drawing pump (12), a liquid recovery pump (25) and the pipeline are connected with the controller (45) through wires;
The top of heating reaction tank (49) be linked together with the inner chamber of carbon dioxide knockout drum (14), the internal diameter of heating reaction tank (49) cooperatees with the outer wall of central heating pipe (47), the external diameter of heating reaction tank (49) is not greater than the internal diameter of carbon dioxide knockout drum (14), be provided with gaseous back-draft chamber (52) in carbon dioxide knockout drum (14), the top of gaseous back-draft chamber (52) is linked together with the bottom of carbon dioxide output tube (18), heating reaction tank (49) are two at least, all heating reaction tank (49) top-down equal distribution are in the outer wall of central heating pipe (47), the length of bottom outlet pipe (51) of bottom heating reaction tank (49) below is the half of the bottom outlet pipe (51) length that is located upper portion, the bottom outlet pipe (51) bottom surface of bottom is located the top of carbon dioxide knockout drum (14) diapire, the length between carbon dioxide knockout drum (14) diapire and bottom outlet pipe (51) bottom surface is not less than the thickness of heating reaction tank (49).
2. The biomass carbon sequestration system of claim 1, wherein the heat transfer box (6) is of a rectangular cavity structure, the fire passage (5) is communicated with the middle part of one side of the heat transfer box (6), the heat recovery converter (42) is of a square block structure capable of recovering heat energy provided by the fire passage (5), the heat recovery converter (42) is located at the center of an inner cavity of the heat transfer box (6), the middle part of the other side of the heat transfer box (6) is communicated with the smoke filter (7) through a pipeline, and the replaceable dust filter sheet (43) is movably inserted into the smoke filter (7) through the top of the smoke filter (7).
3. The biomass carbon sequestration system of claim 1, wherein the oxygenation secondary burner (35) is a circular ring in the middle and has a symmetrical funnel-shaped structure with the upper part and the lower part, a middle ventilation ring (35-3) is arranged in the middle of the oxygenation secondary burner (35), the top of the middle ventilation ring (35-3) is communicated with the bottom of the upper flaring bin (35-1), the bottom of the middle ventilation ring (35-3) is communicated with the top of the lower necking bin (35-2), the top of the material adding combustion chamber (39) is communicated with the middle ventilation ring (35-3) through the lower necking bin (35-2), the middle ventilation ring (35-3) is communicated with the secondary combustion chamber (41) through the upper flaring bin (35-1), the top outer wall of the upper flaring bin (35-1) is fixedly connected with the inner wall of the biomass combustion furnace (1), the bottom outer wall of the lower necking bin (35-2) is fixedly connected with the inner wall of the biomass combustion furnace (1), the middle ventilation ring (35-3) is fixedly connected with the inner wall of the biomass combustion furnace (1), and the upper ventilation ring (35-3) is communicated with the oxygen inlet (35-3) through the upper flaring hole (35-3) and the upper ventilation ring (35-4) is arranged on the upper part of the combustion chamber.
4. The biomass carbon sequestration system according to claim 1, characterized in that the grate (38) is located between the material adding combustion chamber (39) and the ash collecting chamber (40), an igniter (37) connected with an external ignition device is arranged in the material adding combustion chamber (39) at one side of the upper part of the grate (38), an opening and closing sealing door (2) is arranged on the biomass combustion furnace (1) corresponding to the material adding combustion chamber (39), and the inlet end of the gas countercurrent valve (8) is communicated with the outlet end of the smoke filter (7).
5. The biomass carbon sequestration system of claim 1, wherein the carbon dioxide recovery tank (9) is of a tank structure with a smoke outlet (11) at the top, a liquid material adding pipe (10) is arranged at one side of the smoke outlet (11), the top liquid level of the monoethanolamine solution (44) is located at the upper position of the longitudinal middle part of the carbon dioxide recovery tank (9), a touch display (16) and a control button (17) which are connected with a controller (45) are arranged on the outer wall of the control cabinet (15), and a liquid suction pipe electromagnetic valve (33) electrically connected with the controller (45) is arranged on the liquid recovery pipe (32).
6. The biomass carbon sequestration system of claim 1, wherein the carbon dioxide separation tank (14) is of a sealed tank structure, the top of the liquid suction pipe (13) and the top of the carbon dioxide output pipe (18) are symmetrically distributed on the top surface of the carbon dioxide separation tank (14), the central heating pipe (47) is of a cylindrical tubular structure, the bottom of the central heating pipe (47) is fixedly connected with the bottom wall of the carbon dioxide separation tank (14), the top of the central heating pipe (47) is fixedly connected with the lower surface of the top wall of the carbon dioxide separation tank (14), and the heating coil (48) is of a single spiral structure at the junction of the outer side and the inner wall of the central heating pipe (47).
7. The biomass carbon sequestration system of claim 1, wherein the radiator (19) is internally provided with cooling fins (53), the cooling fins (53) are distributed on the inner wall of the radiator (19) in a vertically staggered manner, the radiator (19) is of a rectangular cavity structure, a first supporting table (20) is arranged at the bottom of the radiator (19), the bottom of the first supporting table (20) is fixedly connected with the top of a gas compressor (22), a second supporting table (24) is arranged at the bottom of the gas compressor (22), a bottom supporting frame (29) is arranged below the second supporting table (24), the bottom of a carbon dioxide output pipe (18) is positioned at the top of one side of the radiator (19), the top of the carbon dioxide recovery pipe (21) is positioned at the bottom of the other side of the radiator (19), the bottom of the carbon dioxide recovery pipe (21) is positioned at the top of one side of the gas compressor (22), the top of a pipeline provided with a gas three-way electromagnetic valve (23) is positioned at the bottom of the other side of the gas compressor (22), the bottom of the pipeline provided with the gas three-way electromagnetic valve (23) is positioned below the top of the bottom supporting frame (29), and the pipeline provided with a platen fixing hole for clamping the three-way electromagnetic valve (23);
An outlet at one side of the three-way electromagnetic valve (23) is communicated with a carbon dioxide long-distance conveying pipeline (27) through an anti-backflow valve (26), a pipeline supporting frame (28) is arranged below the carbon dioxide long-distance conveying pipeline (27), the other end of the carbon dioxide long-distance conveying pipeline (27) is communicated with a connecting valve (56), the connecting valve (56) is communicated with a secondary pressurizing conveyor (57) through a switching three-way pipeline (55), the secondary pressurizing conveyor (57) is communicated with one side of a carbon sealing cavity (59) positioned underground through a pipeline with an air inlet descending control valve (58), the other side of the carbon sealing cavity (59) is communicated with the bottom of an output pipeline (61) provided with an ascending control valve (60), and a secondary safety control valve (62) is arranged at the top of the output pipeline (61);
The outlet of the other side of the three-way electromagnetic valve (23) is communicated with the top of a carbon dioxide pressurizing storage tank (31) movably arranged below a bottom support frame (29) through a storage tank high-pressure check valve (30), a serial pressurizing sealing valve (34) matched with a connecting valve (56) and a switching three-way pipeline (55) is arranged in the middle of the front side and the middle of the rear side of the carbon dioxide pressurizing storage tank (31), and the serial pressurizing sealing valve (34) is matched with a serial pressurizing pipeline (54) arranged outside.
8. A method for sequestering biomass carbon in a biomass carbon sequestering system according to any one of claims 1 to 7, comprising the steps of:
S1, opening an opening and closing sealing door (2), adding biomass fuel which is subjected to compression molding in advance into a material adding combustion cavity (39), then closing the opening and closing sealing door (2), starting an igniter (37) to ignite the biomass fuel, slowly burning the biomass fuel in the material adding combustion cavity (39), generating a large amount of carbon monoxide in the burning process, enabling the carbon monoxide to enter a middle ventilation ring (35-3) through a lower necking bin (35-2), opening an external induced draft fan (3), enabling external air to enter the middle ventilation ring (35-3) and the inner cavity of an upper flaring bin (35-1) through an oxygenation hole (36), and fully burning the carbon monoxide which is insufficiently generated by burning after being mixed with oxygen injected from the outside in a secondary combustion chamber (41):
S2, continuously advancing flame of the secondary combustion chamber (41) towards the direction of the heat conversion box (6) in the flame passing channel (5), recovering heat energy in the heat conversion box (6) through the heat energy recovery converter (42), generating carbon dioxide in the heat energy recovery process, enabling flue gas containing high-concentration carbon dioxide to enter the smoke filter (7), filtering dust through the replaceable dust filter sheet (43), and enabling the flue gas to enter the bottom of the carbon dioxide recovery tank (9) through the gas countercurrent valve (8);
s3, enabling high-temperature carbon dioxide and flue gas to pass through a monoethanolamine solution (44) from bottom to top in a carbon dioxide recovery tank (9), wherein the carbon dioxide is absorbed by the monoethanolamine solution (44) to form a carbon dioxide absorption liquid, the redundant flue gas is discharged through a smoke outlet (11), and the carbon dioxide absorption liquid is pumped into a carbon dioxide separation tank (14) through a liquid pump (12) through a liquid pumping pipe (13);
S4, a heating reaction tank (49) at the uppermost part in the carbon dioxide separation tank (14) receives carbon dioxide absorption liquid discharged from the liquid suction pipe (13), an electric heater (46) is started in advance to heat a heating coil pipe (48), heat is transferred to a central heating pipe (47) through the heating coil pipe (48), the outer wall of the central heating pipe (47) directly carries out thermal reaction on the carbon dioxide absorption liquid in the heating reaction tank (49), carbon dioxide in the carbon dioxide absorption liquid is resolved and separated from the carbon dioxide absorption liquid through a heating effect, in the separation process, the carbon dioxide absorption liquid in the uppermost heating reaction tank (49) continuously descends through a vertical communicating pipe (50), the resolving and separating of the carbon dioxide in the carbon dioxide absorption liquid are fully completed in the descending process, and finally, the wholly resolved monoethanolamine solution (44) flows into the bottom of the carbon dioxide separation tank (14) through the vertical communicating pipe (50) at the bottommost part;
S5, the monoethanolamine solution (44) flowing into the bottom of the carbon dioxide separation tank (14) is recycled into the carbon dioxide recovery tank (9) through a liquid recycling pipe (32) provided with a liquid suction pipe electromagnetic valve (33), the resolved and separated carbon dioxide is recycled into the radiator (19) through a gas back suction cavity (52) and a carbon dioxide output pipe (18), cooling treatment is carried out on the carbon dioxide through a cooling fin (53) arranged in the radiator (19), and then the carbon dioxide is conveyed to a pipeline provided with a gas three-way electromagnetic valve (23) through a carbon dioxide recycling pipe (21) and a gas compressor (22);
S6, according to the preset working time of the biomass combustion furnace (1), the corresponding outlet end of the three-way electromagnetic valve (23) is selectively opened, when the biomass combustion furnace (1) is operated for a single time, one side outlet of the biomass combustion furnace (1) is communicated with the high-pressure one-way valve (30) of the storage tank, the carbon dioxide output by the gas compressor (22) is recycled through the carbon dioxide pressurizing storage tank (31), after recycling, the carbon dioxide pressurizing storage tank (31) is stored and transported, when the biomass combustion furnace (1) is operated for a long time, the other side outlet of the biomass combustion furnace (1) is communicated with the backflow prevention valve (26), the carbon dioxide output by the gas compressor (22) is recycled through the carbon dioxide long-distance conveying pipeline (27), the continuously output carbon dioxide is finally communicated with one side inlet of the switching three-way pipeline (55) through the connecting valve (56), the carbon dioxide is conveyed to the pipeline with the air inlet control valve (58) through the secondary pressurizing conveyor (57), the carbon dioxide is finally stored in the carbon dioxide pressurizing storage tank (31) in a sealing mode, the carbon dioxide is conveyed to the carbon dioxide pressurizing storage tank (31) in a serial connection mode after the secondary pressurizing storage tank (31) is transported in a serial mode, a serial pressurizing sealing valve (34) arranged on one side of a carbon dioxide pressurizing storage tank (31) at a starting position is communicated with a serial pressure supply pipeline (54), a serial pressurizing sealing valve (34) arranged on the other side of the carbon dioxide pressurizing storage tank (31) at a terminating position is communicated with a connecting valve (56), and carbon dioxide in the carbon dioxide pressurizing storage tank (31) is finally sealed into a carbon sealing cavity (59);
And S7, when the carbon dioxide sealed in the carbon sealing cavity (59) needs to be recycled, opening an upward-conveying control valve (60) and a secondary safety control valve (62), outputting the carbon dioxide sealed in the carbon sealing cavity (59) to a recycling end through an output pipeline (61) or recycling the carbon dioxide in the carbon dioxide pressurizing storage tank (31), and simultaneously directly recycling the carbon dioxide output by the gas compressor (22) through the carbon dioxide pressurizing storage tank (31) when the carbon dioxide is needed.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203880757U (en) * | 2014-05-30 | 2014-10-15 | 关要领 | Biomass cooking and heating stove |
| CN211502850U (en) * | 2019-12-17 | 2020-09-15 | 上海朝临动力科技有限公司 | Boiler system |
| CN216703901U (en) * | 2021-12-20 | 2022-06-10 | 天津市华之龙生物质能科技股份有限公司 | A equipment that is used for biomass fuel boiler system of discharging fume to retrieve carbon dioxide |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2850156B1 (en) * | 2003-01-16 | 2005-12-30 | Alstom Switzerland Ltd | COMBUSTION INSTALLATION WITH CO2 RECOVERY |
| CN201680417U (en) * | 2010-08-17 | 2010-12-22 | 高海华 | Biomass energy-saving environment-protection cooking-heating furnace |
| UA113332C2 (en) * | 2015-04-21 | 2017-01-10 | HEATING DEVICE | |
| JP6526499B2 (en) * | 2015-06-29 | 2019-06-05 | 株式会社神鋼環境ソリューション | Burner |
| CN206572554U (en) * | 2017-01-17 | 2017-10-20 | 武汉海德新能源投资有限公司 | A kind of recyclable biomass combustion furnace of heat |
| CN115978555A (en) * | 2022-12-16 | 2023-04-18 | 安徽万山红环保科技有限公司 | Three-chamber RTO exchange heat accumulation type waste gas incineration device |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203880757U (en) * | 2014-05-30 | 2014-10-15 | 关要领 | Biomass cooking and heating stove |
| CN211502850U (en) * | 2019-12-17 | 2020-09-15 | 上海朝临动力科技有限公司 | Boiler system |
| CN216703901U (en) * | 2021-12-20 | 2022-06-10 | 天津市华之龙生物质能科技股份有限公司 | A equipment that is used for biomass fuel boiler system of discharging fume to retrieve carbon dioxide |
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