CN108795507B - Gasifier and gasification system - Google Patents
Gasifier and gasification system Download PDFInfo
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- CN108795507B CN108795507B CN201810931623.9A CN201810931623A CN108795507B CN 108795507 B CN108795507 B CN 108795507B CN 201810931623 A CN201810931623 A CN 201810931623A CN 108795507 B CN108795507 B CN 108795507B
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- 238000002309 gasification Methods 0.000 title claims abstract description 30
- 239000003063 flame retardant Substances 0.000 claims abstract description 70
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims abstract description 63
- 238000002485 combustion reaction Methods 0.000 claims abstract description 44
- 238000000746 purification Methods 0.000 claims abstract description 26
- 230000000903 blocking effect Effects 0.000 claims abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 130
- 238000005192 partition Methods 0.000 claims description 22
- 238000000926 separation method Methods 0.000 claims description 6
- 230000003247 decreasing effect Effects 0.000 claims 2
- 239000003245 coal Substances 0.000 abstract description 14
- 239000000126 substance Substances 0.000 abstract description 7
- 230000006378 damage Effects 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 34
- 239000000428 dust Substances 0.000 description 11
- 239000002817 coal dust Substances 0.000 description 6
- 230000007423 decrease Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 239000000446 fuel Substances 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 239000010883 coal ash Substances 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
- C10J3/72—Other features
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
- C10J3/72—Other features
- C10J3/82—Gas withdrawal means
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Gasification And Melting Of Waste (AREA)
- Solid-Fuel Combustion (AREA)
Abstract
The invention provides a gasification furnace and a gasification system, and relates to the technical field of coal chemical industry. The gasification furnace provided by the invention comprises a furnace body, wherein the furnace body is internally provided with a combustion bin, a purification bin and a flame-retardant bin; the purification bin and the flame-retardant bin are positioned above the combustion bin, a flame retardant device for blocking and extinguishing sparks is arranged in the flame-retardant bin, the gasifier can effectively block and kill sparks in the air flow, the damage to equipment caused by the gasifier is reduced, the service life is prolonged, and the safety of the production process is improved.
Description
Technical Field
The invention relates to the technical field of coal chemical industry, in particular to a gasification furnace and a gasification system.
Background
Coal gasification is a thermochemical process, in which coal or char is used as a raw material, oxygen (air, oxygen-enriched or pure oxygen), steam or hydrogen, etc. are used as gasifying agents, and combustible portions in the coal or char are converted into gaseous fuel or downstream raw materials through chemical reaction at high temperature, and a gasification furnace is a main apparatus for coal gasification.
However, when the existing gasification furnace works, the generated airflow is provided with sparks, equipment is easy to damage, potential safety hazards are generated, and the like.
In view of this, the present invention has been made.
Disclosure of Invention
The invention aims to provide a gasification furnace which can effectively block and kill sparks in air flow, reduce the harm to equipment, prolong the service life and help to improve the safety of the production process.
The invention aims to provide a gasification system.
The invention is realized in the following way:
The gasifier comprises a gasifier body, wherein a combustion bin, a purification bin and a flame-retardant bin are arranged in the gasifier body; the purification bin and the flame-retardant bin are positioned above the combustion bin, and a flame retardant device for blocking and extinguishing sparks is arranged in the flame-retardant bin;
an air inlet pipe is arranged at the input end of the flame retardant device, and an air inlet port of the air inlet pipe penetrates through a first partition plate between the flame retardant bin and the combustion bin and extends into the combustion bin;
The output end of the flame retardant device is provided with an air outlet pipe, and an air outlet port of the air outlet pipe penetrates through a second partition plate between the flame retardant bin and the purification bin and extends into the purification bin;
The top of the purification bin is provided with an exhaust pipe, an air inlet port of the exhaust pipe penetrates through the top wall of the furnace body and extends into the purification bin, and an exhaust port of the exhaust pipe is positioned outside the furnace body.
Further, in the preferred embodiment of the present invention, the flame retardant device has a flame retardant cavity inside, and a plurality of flame retardant cores are installed in the middle of the flame retardant cavity, and the plurality of flame retardant cores are uniformly arranged along the same axis.
Further, in a preferred embodiment of the present invention, the radial cross-section of the firestop cavity decreases in diameter in the direction along the firestop core toward the inlet duct.
Further, in a preferred embodiment of the invention, the radial cross-section of the firestop cavity decreases in diameter in a direction along the firestop core toward the outlet duct.
Further, in the preferred embodiment of the invention, a water-clamping layer is arranged inside the furnace body, is positioned outside the combustion chamber and covers the outside of the combustion chamber.
Further, in the preferred embodiment of the invention, a first water tank is arranged at a position, close to the top, of the outer side wall of the furnace body; a water inlet pipe is arranged at a position, close to the top, of one side, far away from the furnace body, of the first water tank;
one end of the water inlet pipe is communicated with the first water tank, and the other end of the water inlet pipe is used for communicating a water source; the first water tank is close to one side of the furnace body and is provided with a water guide pipe at a position close to the bottom, and the water guide pipe penetrates through the outer side wall of the furnace body and extends to the inside of the water clamping layer.
Further, in a preferred embodiment of the present invention, the outer sidewall of the furnace body is provided with a second water tank at the other side with respect to the first water tank; a water suction pump is arranged in the second water tank, and a water suction pipe arranged on the water suction pump penetrates through the outer side wall of the furnace body and stretches into the water-clamping layer; the water outlet of the water suction pump is positioned in the second water tank;
one side of the second water tank, which is far away from the furnace body, is provided with a water outlet pipe at a position close to the bottom, one end of the water outlet pipe is communicated to the inside of the second water tank, and the other end of the water outlet pipe is positioned outside the second water tank.
Further, in a preferred embodiment of the present invention, a dust screen is disposed in the combustion chamber, the dust screen is located near the first partition, a first compartment is disposed between the dust screen and the first partition, and an air inlet port of the air inlet pipe is located in the first compartment.
Further, in the preferred embodiment of the invention, a plurality of layers of filter screens are arranged in the purifying bin, and the distances between two adjacent layers of filter screens are the same; a second separation cavity is arranged between the second partition plate and the first layer of filter screen close to the second partition plate, and an air outlet port of the air outlet pipe is positioned in the second separation cavity.
Further, in a preferred embodiment of the present invention, a plurality of shock-absorbing legs are installed at the bottom of the furnace body, and shock-absorbing pads are installed at the bottoms of the shock-absorbing legs.
A gasification system comprising the gasification described above.
The beneficial effects of the invention are as follows:
The gasification furnace comprises a furnace body, wherein a combustion bin, a purification bin and a flame-retardant bin are arranged in the furnace body; the purification bin and the flame-retardant bin are positioned above the combustion bin, and a flame retardant device for blocking and extinguishing sparks is arranged in the flame-retardant bin; the gas generated by the combustion bin can enter the gas inlet pipe, after being treated by the flame retardant, the sparks doped in the gas flow are blocked by the flame retardant, and then flow out of the gas outlet pipe and flow into the purification bin, and the gas flows out of the gas outlet pipe and flows out of the furnace body through the gas outlet pipe to be collected or discharged. The gasification furnace can effectively block and kill sparks in the airflow, reduce the harm to equipment, prolong the service life and help to improve the safety of the production process.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view showing an internal structure of a gasification furnace according to an embodiment of the present invention;
FIG. 2 is a schematic view showing an external structure of a gasification furnace according to an embodiment of the present invention;
FIG. 3 is a schematic view of a flame retardant device according to an embodiment of the present invention;
fig. 4 is a right side view of fig. 3.
Icon: 1-a shock absorption support leg; 2-a furnace body; 3-a combustion bin; 4-a dust screen; 5-a water guide pipe; 6-a water-clamping layer; 7, an air inlet pipe; 8-a water inlet pipe; 9-a first water tank; 10-flame retardant; 11-an air outlet pipe; 12-a flame-retardant bin; 13-an exhaust pipe; 14-a filter screen; 15-purifying bin; 16-a second tank; 17-a water suction pump; 18-a water outlet pipe; 19-a water pumping pipe; 20-furnace door; 21-a control panel; 22-a first firestop core; 23-a second firestop core; 24-firestop cavity; 25-a first separator; 26-a second separator; 27-a firestop core; 30-gasification furnace.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "clockwise", "counterclockwise", and the like indicate an azimuth or a positional relationship based on that shown in the drawings, or an azimuth or a positional relationship in which the inventive product is conventionally put in use, are merely for convenience of describing the present invention and for simplifying the description, and do not indicate or imply that the apparatus or element to be referred to must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal," "vertical," "overhang," and the like do not denote a requirement that the component be absolutely horizontal or overhang, but rather may be slightly inclined. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present invention, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
Example 1
Referring to fig. 1-3, the gasification furnace 30 provided in this embodiment includes a furnace body 2, and a combustion chamber 3, a purification chamber 15, and a flame retardant chamber 12 are disposed in the furnace body 2. The purification bin 15 and the flame-retardant bin 12 are positioned above the combustion bin 3, and a flame retardant 10 for blocking and extinguishing sparks is arranged in the flame-retardant bin 12.
The purification bin 15, the flame-retardant bin 12 and the combustion bin 3 are isolated by a first partition plate 25, and the flame-retardant bin 12 and the purification bin 15 are isolated by a second partition plate 26. The flame retardant 10 is installed at a side surface of the first partition 25 adjacent to the flame retardant bin 12.
The combustion chamber 3, the purification chamber 15 and the flame retardant chamber 12 are isolated and independent, and the gas communication among the three chambers is realized through the flame retardant 10. Specifically, the following is described.
An air inlet pipe 7 is installed at the input end of the flame retardant 10, and an air inlet port of the air inlet pipe 7 passes through a first partition 25 between the flame retardant bin 12 and the combustion bin 3 and extends to the inside of the combustion bin 3. The gas generated by the combustion chamber 3 may enter the intake pipe 7.
An outlet pipe 11 is arranged at the output end of the flame retardant 10, and an outlet port of the outlet pipe 11 passes through a second partition 26 between the flame retardant bin 12 and the purifying bin 15 and extends into the purifying bin 15. The gas from the combustion chamber 3 is treated by the flame retardant 10, and then flows out from the gas outlet pipe 11 and flows into the purification chamber 15.
An exhaust pipe 13 is installed at the top of the purification bin 15, an air inlet port of the exhaust pipe 13 penetrates through the top wall of the furnace body 2 and extends into the purification bin 15, and an exhaust port of the exhaust pipe 13 is located outside the furnace body 2.
After exiting from the gas outlet pipe 11, the gas flows out of the furnace body 2 through the gas outlet pipe 13 and is collected or discharged.
In the whole gas circulation process, the gas with sparks generated in the combustion bin 3 flows into the flame retardant 10 to be timely blocked and eliminated, so that the gas treated by the flame retardant 10 flows out of the gas outlet pipe 11 and is not provided with sparks, the damage of sparks to subsequent equipment (such as the filter screen 14 arranged in the purification bin 15) and fire hazards caused by the sparks are avoided, the sparks can be prevented from being blown into the outside air, the potential safety hazards are radically eliminated, and the safety of the whole equipment is improved.
Of course, the internal structure of the flame retardant 10 may be various, so long as the flame retardant can timely block and kill sparks in the gas generated by the combustion chamber 3, which belongs to the protection scope of the present invention.
Referring to fig. 3 and 4, in the present embodiment, the flame retardant 10 has a flame retardant cavity 24 inside, and a plurality of flame retardant cores 27 capable of extinguishing sparks are installed in the middle of the flame retardant cavity 24, and the plurality of flame retardant cores 27 are uniformly arranged along the same axis. It is also understood that a plurality of firestops are uniformly aligned along the direction of travel of the airflow. By the arrangement mode, sparks in the airflow can be stopped to the greatest extent. Compared with the design structure of a single fire-retarding core 27, the back fire-retarding cores 27 in the plurality of fire-retarding cores 27 can block and extinguish the non-extinguished sparks missed by the front fire-retarding core 27 for the second time, so that the sparks are prevented from being missed as much as possible, the fire-retarding efficiency of the sparks is improved, and the safety is further improved.
In this embodiment, the fire-blocking core 27 itself is of a conventional structure and is commercially available (for example, ZHB fire-blocking core manufactured by petrochemical company limited of the period of the day from 7 a.m. to 9 a.m. in Beijing).
Of course, other embodiments employing a flame-retardant core 27 configuration other than the prior art design are within the scope of the present invention. That is, regardless of the design of the fire-retardant core 27, it is within the scope of the present invention as long as it has the function of eliminating, extinguishing, filtering, etc. sparks or the like.
In the present embodiment, two fire-retardant cores 27 are provided, namely, the first fire-retardant core 22 and the second fire-retardant core 23, and the axes of the two fire-retardant cores 27 coincide. Two fire-blocking cores 27 are installed in the fire-blocking chamber 24 in the direction of the air flow. Of course, in other embodiments, the number of firestop cores 27 can be more than 3, 4, 5, 6, etc. Regardless of how many fire-retarding cores 27 are provided, or as long as the plurality of fire-retarding cores 27 are arranged in series in the direction of the advancing airflow, it is within the scope of the present invention.
Further, in the present embodiment, the diameter of the radial cross section of the firestop cavity 24 decreases in the direction along the firestop core 27 toward the intake pipe 7. It will be appreciated that the structure of firestop cavity 24 on the left side (in the direction relative to fig. 1) of firestop core 27 is of a tapered design.
The tapered design of this portion is narrow at the end near the air inlet pipe 7 and wide at the end near the firestop core 27. The tapered design may provide a reduction in gas flow rate as the gas enters the firestop cavity 24, cushioning the gas flow. The increased residence time or residence time of the gas stream within the firestop cavity 24 increases the time or volume of gas flow to which the firestop core 27 contacts, thereby trapping more sparks. In addition, the gas velocity is reduced, so that the impact force on the flame-retardant core 27 can be reduced, the flame-retardant core 27 is prevented from being displaced along the gas flow direction, and the stability of the flame-retardant core 27 is improved.
Further, in the present embodiment, the diameter of the radial cross section of the firestop cavity 24 decreases in the direction along the firestop core 27 toward the outlet pipe 11. It will be appreciated that the right-hand (oriented with respect to fig. 1) configuration of firestop cavity 24 in firestop core 27 is of a tapered design.
The tapered design of this portion is narrow at the end near the outlet duct 11 and wide at the end near the firestop core 27. The conical design structure of the part can prevent the fire-retarding core 27 from lateral displacement, such as right displacement, when being impacted by air flow, thereby improving the stability of the fire-retarding core 27
Further, in the present embodiment, the inside of the furnace body 2 is provided with a water-trapping layer 6, and the water-trapping layer 6 is located outside the combustion chamber 3 and covers the outside of the combustion chamber 3.
When the conventional coal chemical gasification furnace 30 is used, most of the conventional coal chemical gasification furnace is provided with the hot water supply pipe at the outer side of the combustion chamber, and the heat generated by the combustion of the pulverized coal is utilized to heat water in the hot water supply pipe, so that the heat generated by the combustion of the coal is utilized, however, the contact area between the hot water supply pipe and the combustion chamber is smaller, so that a large amount of heat generated in the combustion process of the pulverized coal is lost, energy waste is caused, and the energy utilization rate of the device is lower.
In this embodiment, the water-clamping layer 6 is arranged in the furnace body 2, and covers the outer side of the combustion bin 3, so that the contact area between water and the combustion bin 3 is greatly increased, the water flowing into the water-clamping bin can directly absorb the heat generated by burning pulverized coal, the heat loss is reduced, and the energy utilization rate of the whole equipment is effectively improved.
In addition, in the present embodiment, a first water tank 9 is provided at a position of the outer side wall of the furnace body 2 near the top; a water inlet pipe 8 is arranged at a position, close to the top, of one side, far away from the furnace body 2, of the first water tank 9.
One end of the water inlet pipe 8 is communicated with the first water tank 9, and the other end of the water inlet pipe 8 is used for communicating a water source (such as an external water supply pipe); the first water tank 9 is installed with a water guide pipe 5 near one side of the furnace body 2 and at a position near the bottom, and the water guide pipe 5 passes through the outer side wall of the furnace body 2 and extends to the inside of the water-trapping layer 6.
In addition, the outer side wall of the furnace body 2 is provided with a second water tank 16 on the other side with respect to the first water tank 9. It will be appreciated that the first and second water tanks 9, 16 are located at diagonal positions of the furnace body 2 (with respect to fig. 1). A water suction pump 17 is arranged in the second water tank 16, and a water suction pipe 19 arranged on the water suction pump 17 penetrates through the outer side wall of the furnace body 2 and stretches into the water-clamping layer 6; the water outlet of the water pump 17 is positioned inside the second water tank 16.
In this embodiment, the water pump 17 is a ISGD single stage pump.
The side of the second water tank 16 far away from the furnace body 2 is provided with a water outlet pipe 18 at a position close to the bottom, one end of the water outlet pipe 18 is communicated to the inside of the second water tank 16, and the other end is positioned outside the second water tank 16.
During water injection, the water inlet pipe 8 is communicated with an external water pipe, water flows into the first water tank 9 through the water inlet pipe 8, then enters into the water-clamping layer 6 through the water guide pipe 5, and fills the whole water-clamping layer 6.
During drainage, the water suction pump 17 pumps the heated hot water in the water-clamping layer 6 into the second water tank 16, and the hot water flows out of the furnace body 2 through the water outlet pipe 18, and can be collected or directly discharged as required.
Referring to fig. 2, in addition, a liquid level observation window is disposed on the first water tank 9, and scale marks are disposed on the outer side of the liquid level observation window, so as to observe the water level of the first water tank 9, grasp water quantity information in time, and facilitate water quantity control.
Referring to fig. 1, in this embodiment, a dust screen 4 is disposed in the combustion chamber 3, the dust screen 4 is located near the first partition 25, a first compartment is disposed between the dust screen 4 and the first partition 25, and an air inlet port of the air inlet pipe 7 is located in the first compartment.
Coal dust or other dust substances are easy to generate in the combustion process of coal dust or other fuels, most of the coal dust or other dust substances can be effectively filtered by the arrangement of the dustproof net 4, so that gas coal dust or other dust substances flowing into the flame retardant 10 are less, the fire retardant core 27 is prevented from being blocked by the impurities, and the service life of the fire retardant core 27 is prolonged.
Referring to fig. 1, further, in this embodiment, a plurality of filter screens 14 are disposed in the purifying bin 15, and two ends of each filter screen 14 are respectively connected to the first partition 25 and the top of the furnace body 2. The distance between two adjacent layers of filter screens 14 is the same; a second compartment is arranged between the second partition 26 and the first layer of filter screen 14 adjacent to the second partition 26, and an air outlet port of the air outlet pipe 11 is positioned in the second compartment. By the arrangement of the filter screen 14, impurities in the gas are filtered again, and the purity of the gas is improved.
Referring to fig. 1 and 2, in addition, a plurality of shock-absorbing legs 1 are installed at the bottom of the furnace body 2, and shock-absorbing pads are installed at the bottoms of the shock-absorbing legs 1. In this embodiment, the quantity of shock attenuation stabilizer blade 1 sets up to 4, is located four angles of the bottom of furnace body 2 respectively, reduces furnace body 2 vibration amplitude in the course of the work, improves the stability of furnace body 2 structure.
Referring to fig. 2, in addition, in the present embodiment, the furnace body 2 is provided with a furnace door 20 for opening or closing the combustion chamber 3, and a handle is installed on the outer side of the furnace door 20, so that a user can operate the furnace door 20 to add pulverized coal or other fuel into the furnace body 2.
In addition, in this embodiment, a control panel 21 is installed at a middle position of the outer side wall of the second water tank 16, and an output end of the control panel 21 is electrically connected with an input end of the water pump 17 through a wire, so as to control the water pump 17.
The operation of the gasification furnace 30 of this embodiment is far from: when the device is used, the device is powered on, then the water inlet pipe 8 is communicated with an external water pipe, water flow enters the first water tank 9 through the water inlet pipe 8, and then enters the water clamping bin layer through the water guide pipe 5; the user can open the furnace door 20, add a proper amount of coal dust into the combustion bin 3, ignite the coal dust, and then close the furnace door 20; the gas generated by burning the pulverized coal is filtered by the dust screen 4 to remove the coal ash, and then enters the flame retardant 10 through the air inlet pipe 7; the gas enters into the fire-retarding cavity 24 inside the fire-retardant device 10, and the first fire-retarding core 22 and the second fire-retarding core 23 inside the fire-retarding cavity 24 can retard and extinguish the sparks doped in the gas flow;
Then the air flow enters the purifying bin 15 through the air outlet pipe 11, the filter screen 14 in the purifying bin 15 can purify harmful gas in the air, and the purified air is discharged through the air outlet pipe 13; the user can collect the gas generated in the gasification process through the exhaust pipe 13; in the gasification process, water flow is always introduced into the water inlet pipe 8, so that the water flow in the water-containing layer 6 keeps a flowing state, and the water flow absorbs heat; the user can open the water pump 17 through the control panel 21 and open the sealing cover on the water outlet pipe 18; the water suction pump 17 pumps the heated hot water in the water-clamping layer 6 into the second water tank 16, and the hot water flows out through the water outlet pipe 18; after gasification, the worker can open the furnace door 20 to clean the coal ash in the combustion chamber 3.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. The gasification furnace is characterized by comprising a furnace body, wherein a combustion bin, a purification bin and a flame-retardant bin are arranged in the furnace body; the purification bin and the flame-retardant bin are positioned above the combustion bin, and a flame retardant device for blocking and extinguishing sparks is arranged in the flame-retardant bin;
a water-clamping layer is arranged in the furnace body, and is positioned at the outer side of the combustion bin and covers the outer side of the combustion bin;
An air inlet pipe is arranged at the input end of the flame retardant device, and an air inlet port of the air inlet pipe penetrates through a first partition plate between the flame retardant bin and the combustion bin and extends into the combustion bin;
a dustproof net is arranged in the combustion bin, the dustproof net is positioned close to the first partition board, a first separation cavity is arranged between the dustproof net and the first partition board, and an air inlet port of the air inlet pipe is positioned in the first separation cavity;
an air outlet pipe is arranged at the output end of the flame retardant device, and an air outlet port of the air outlet pipe penetrates through a second partition plate between the flame retardant bin and the purification bin and extends into the purification bin;
The fire retardant device is characterized in that a fire retardant cavity is arranged in the fire retardant device, a plurality of fire retardant cores are arranged in the middle of the fire retardant cavity, and the plurality of fire retardant cores are uniformly arranged along the same axis; the diameter of the radial section of the fire-retarding cavity is gradually decreased along the direction from the fire-retarding core to the air inlet pipe; the diameter of the radial section of the fire-retarding cavity is gradually decreased along the direction from the fire-retarding core to the air outlet pipe;
An exhaust pipe is arranged at the top of the purification bin, an air inlet port of the exhaust pipe penetrates through the top wall of the furnace body and extends into the purification bin, and an exhaust port of the exhaust pipe is positioned outside the furnace body;
the purifying bin is internally provided with a plurality of layers of filter screens, a second separation cavity is arranged between the second partition board and the first layer of filter screen close to the second partition board, and an air outlet port of the air outlet pipe is positioned in the second separation cavity.
2. The gasifier according to claim 1, wherein a first water tank is arranged at a position of an outer side wall of the gasifier body near the top; a water inlet pipe is arranged at a position, close to the top, of one side, far away from the furnace body, of the first water tank;
One end of the water inlet pipe is communicated with the first water tank, and the other end of the water inlet pipe is used for communicating a water source; the first water tank is close to one side of the furnace body and is provided with a water guide pipe at a position close to the bottom, and the water guide pipe penetrates through the outer side wall of the furnace body and extends to the inside of the water clamping layer.
3. The gasifier according to claim 2, wherein an outer sidewall of the furnace body is provided with a second water tank on the other side with respect to the first water tank; a water suction pump is arranged in the second water tank, and a water suction pipe arranged on the water suction pump penetrates through the outer side wall of the furnace body and stretches into the water-clamping layer; a water outlet on the water suction pump is positioned in the second water tank;
and a water outlet pipe is arranged at a position, close to the bottom, of one side, away from the furnace body, of the second water tank, one end of the water outlet pipe is communicated to the inside of the second water tank, and the other end of the water outlet pipe is positioned outside the second water tank.
4. A gasifier according to claim 1 wherein the distance between adjacent layers of said filter is the same.
5. A gasification system comprising a gasification furnace according to any one of claims 1 to 4.
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| CN201810931623.9A CN108795507B (en) | 2018-08-15 | 2018-08-15 | Gasifier and gasification system |
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| CN201810931623.9A CN108795507B (en) | 2018-08-15 | 2018-08-15 | Gasifier and gasification system |
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| CN116772228B (en) * | 2023-07-21 | 2024-01-16 | 泊头市宏大除尘设备制造有限公司 | Fire-retardant device for smoke purification of combined biomass boiler |
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