CN119617405B - Two-stage series-connection deep peak regulation circulating fluidized bed boiler - Google Patents
Two-stage series-connection deep peak regulation circulating fluidized bed boiler Download PDFInfo
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- CN119617405B CN119617405B CN202510162852.9A CN202510162852A CN119617405B CN 119617405 B CN119617405 B CN 119617405B CN 202510162852 A CN202510162852 A CN 202510162852A CN 119617405 B CN119617405 B CN 119617405B
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- hearth
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN A CARRIER GAS OR AIR
- F23C10/00—Fluidised bed combustion apparatus
- F23C10/02—Fluidised bed combustion apparatus with means specially adapted for achieving or promoting a circulating movement of particles within the bed or for a recirculation of particles entrained from the bed
- F23C10/04—Fluidised bed combustion apparatus with means specially adapted for achieving or promoting a circulating movement of particles within the bed or for a recirculation of particles entrained from the bed the particles being circulated to a section, e.g. a heat-exchange section or a return duct, at least partially shielded from the combustion zone, before being reintroduced into the combustion zone
- F23C10/08—Fluidised bed combustion apparatus with means specially adapted for achieving or promoting a circulating movement of particles within the bed or for a recirculation of particles entrained from the bed the particles being circulated to a section, e.g. a heat-exchange section or a return duct, at least partially shielded from the combustion zone, before being reintroduced into the combustion zone characterised by the arrangement of separation apparatus, e.g. cyclones, for separating particles from the flue gases
- F23C10/10—Fluidised bed combustion apparatus with means specially adapted for achieving or promoting a circulating movement of particles within the bed or for a recirculation of particles entrained from the bed the particles being circulated to a section, e.g. a heat-exchange section or a return duct, at least partially shielded from the combustion zone, before being reintroduced into the combustion zone characterised by the arrangement of separation apparatus, e.g. cyclones, for separating particles from the flue gases the separation apparatus being located outside the combustion chamber
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B31/00—Modifications of boiler construction, or of tube systems, dependent on installation of combustion apparatus; Arrangements or dispositions of combustion apparatus
- F22B31/0007—Modifications of boiler construction, or of tube systems, dependent on installation of combustion apparatus; Arrangements or dispositions of combustion apparatus with combustion in a fluidized bed
- F22B31/0061—Constructional features of bed cooling
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN A CARRIER GAS OR AIR
- F23C10/00—Fluidised bed combustion apparatus
- F23C10/18—Details; Accessories
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN A CARRIER GAS OR AIR
- F23C10/00—Fluidised bed combustion apparatus
- F23C10/18—Details; Accessories
- F23C10/20—Inlets for fluidisation air, e.g. grids; Bottoms
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN A CARRIER GAS OR AIR
- F23C10/00—Fluidised bed combustion apparatus
- F23C10/18—Details; Accessories
- F23C10/22—Fuel feeders specially adapted for fluidised bed combustion apparatus
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN A CARRIER GAS OR AIR
- F23C10/00—Fluidised bed combustion apparatus
- F23C10/18—Details; Accessories
- F23C10/24—Devices for removal of material from the bed
- F23C10/26—Devices for removal of material from the bed combined with devices for partial reintroduction of material into the bed, e.g. after separation of agglomerated parts
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN A CARRIER GAS OR AIR
- F23C10/00—Fluidised bed combustion apparatus
- F23C10/18—Details; Accessories
- F23C10/28—Control devices specially adapted for fluidised bed, combustion apparatus
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN A CARRIER GAS OR AIR
- F23C2206/00—Fluidised bed combustion
- F23C2206/10—Circulating fluidised bed
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Fluidized-Bed Combustion And Resonant Combustion (AREA)
Abstract
The invention provides a two-stage series-connection deep peak regulation circulating fluidized bed boiler, which relates to the field of circulating fluidized bed boilers and comprises a main hearth system, an auxiliary hearth system and an auxiliary hearth cyclone separator, wherein the main hearth system comprises a main hearth, a main air distribution plate arranged in the main hearth and a main hearth water-cooling air chamber arranged below the main air distribution plate, the auxiliary hearth system comprises an auxiliary hearth, an auxiliary air distribution plate arranged in the auxiliary hearth, an auxiliary hearth water-cooling air chamber arranged below the auxiliary air distribution plate and the auxiliary hearth cyclone separator communicated with the auxiliary hearth, the main air distribution plate and the auxiliary air distribution plate are both used for bearing bed materials, the main hearth is communicated with the auxiliary hearth, the bed materials in the main hearth can be transported into the auxiliary hearth, a smoke outlet of the auxiliary hearth cyclone separator is communicated with the main hearth water-cooling air chamber, and high-temperature smoke generated by burning the bed materials in the auxiliary hearth can be discharged into the main hearth water-cooling air chamber through the auxiliary hearth cyclone separator. The auxiliary hearth can provide heat for the main hearth when in fire-pressing, and the fire-pressing duration of the main hearth is prolonged.
Description
Technical Field
The invention relates to the technical field of circulating fluidized bed boilers, in particular to a two-stage series-connection deep peak shaving circulating fluidized bed boiler.
Background
With the rapid development of new energy in recent years, the installation ratio and the generation ratio of the new energy are greatly increased, but the inherent randomness and fluctuation of the new energy power bring great difficulty to new energy consumption and power grid dispatching. In order to solve the difficulties of new energy consumption and power grid dispatching, the peak regulation capability of conventional units such as thermal power units in the power grid needs to be further improved.
As a common coal-fired generator set, the circulating fluidized bed unit has good fuel adaptability, and little pollutant generation is greatly developed. The peak regulation capacity of the circulating fluidized bed unit is improved, so that the new energy consumption capacity of the power grid can be effectively improved, and the dispatching pressure of the power grid is slowed down.
In the prior art, the heat storage capacity of the circulating fluidized bed unit is high, and the heat storage of the circulating fluidized bed unit is utilized to realize the peak regulation of the fire of the circulating fluidized bed unit, but the steam parameters are low and the fire time is short due to no effective heat supplement after the fire of the circulating fluidized bed unit is pressed at present, so that the requirement of the dispatching on the fire duration cannot be met.
Therefore, there is a need for an apparatus that can effectively increase the steam parameters during the firing of a circulating fluidized bed and extend the duration of the firing.
Disclosure of Invention
Therefore, the technical problem to be solved by the invention is to solve the problems that the firing time of the circulating fluidized bed is short and the requirement of dispatching on the firing time cannot be met in the prior art, and provide the two-stage series-connection deep peak regulation circulating fluidized bed boiler which consists of a main hearth system and an auxiliary hearth system, wherein the auxiliary hearth provides high-temperature smoke for the main hearth when the main hearth is fired and the main hearth is started, so that on one hand, the bed material is heated, the heat exchange quantity of the water-cooled wall of the main hearth can be increased, more steam is generated, and on the other hand, the heat exchange quantity of the tail heating surface can be increased, the superheat degree of the steam is increased, and the requirements of the steam quantity and the steam quality in low-load operation are met.
In order to solve the technical problems, the invention provides a two-stage series-connection deep peak shaving circulating fluidized bed boiler, which comprises:
The main hearth system comprises a main hearth, a main air distribution plate arranged in the main hearth and a main hearth water-cooled air chamber arranged below the main air distribution plate;
The auxiliary hearth system comprises an auxiliary hearth, an auxiliary air distribution plate arranged in the auxiliary hearth, an auxiliary hearth water-cooled air chamber arranged below the auxiliary air distribution plate and an auxiliary hearth cyclone separator communicated with the auxiliary hearth;
The main air distribution plate and the auxiliary air distribution plate are used for bearing bed materials, the main hearth is communicated with the auxiliary hearth, and the bed materials in the main hearth can be transported to the auxiliary hearth;
The flue gas outlet of the auxiliary furnace cyclone separator is communicated with the main furnace water-cooling air chamber, and high-temperature flue gas generated by the combustion of bed materials in the auxiliary furnace can be discharged into the main furnace water-cooling air chamber through the auxiliary furnace cyclone separator.
In one embodiment of the invention, a conveying connecting pipe is arranged between the main hearth and the auxiliary hearth, two ends of the conveying connecting pipe are respectively communicated with the main hearth and the auxiliary hearth, and two ends of the conveying connecting pipe are respectively arranged above the main air distribution plate and the auxiliary air distribution plate.
In one embodiment of the invention, the end of the transfer connection pipe that communicates with the main furnace is higher than the end of the transfer connection pipe that communicates with the auxiliary furnace.
In one embodiment of the invention, a control valve is also provided on the delivery connection tube.
In one embodiment of the invention, the auxiliary furnace cyclone separator is communicated with the main furnace water-cooling air chamber through an adiabatic connecting pipe.
In one embodiment of the invention, the heat-insulating connecting pipe is provided with an air inlet communicated with the cyclone separator of the auxiliary furnace and a plurality of air outlets communicated with the water-cooled air chamber of the main furnace, and high-temperature flue gas can be discharged into the water-cooled air chamber of the main furnace from the air outlets.
In one embodiment of the invention, the auxiliary furnace system further comprises an auxiliary fluidization air duct in communication with the auxiliary furnace water-cooled plenum and a fluidization air valve disposed on the auxiliary fluidization air duct.
In one embodiment of the invention, the auxiliary fluidization wind duct communicates with a separate fluidization fan or a main fluidization wind system.
In one embodiment of the invention, the auxiliary furnace system further comprises an auxiliary feeder in communication with the auxiliary furnace, the auxiliary feeder continuously delivering bed material into the auxiliary furnace.
In one embodiment of the invention, the inner walls of the main hearth and the auxiliary hearth are respectively poured with a refractory layer, and water cooling pipes are buried in the refractory layers.
Compared with the prior art, the technical scheme of the invention has the following advantages:
The two-stage series-connection deep peak regulation circulating fluidized bed boiler is provided with the smoke outlet of the auxiliary hearth cyclone separator which is communicated with the main hearth water-cooling air chamber, so that high-temperature smoke generated by burning of bed materials in the auxiliary hearth can be discharged into the main hearth water-cooling air chamber through the auxiliary hearth cyclone separator;
1. The auxiliary hearth can provide heat for the main hearth when in fire-pressing, so that more qualified steam is generated, and the fire-pressing duration of the main hearth is prolonged;
2. After the auxiliary furnace flue gas enters the tail flue of the main furnace, the heat exchange of the heating surface of the tail flue can be increased, and the steam temperature is improved;
3. After the auxiliary flue gas enters the main hearth, the flue gas in the hearth is changed from a stagnation state to a flowing state, so that the accumulation of combustible gas in the hearth is reduced, and the risk of fire raising and explosion after the main hearth is pressed is reduced;
4. When high-temperature flue gas enters from the water-cooled plenum of the main hearth, the temperature of primary air entering the main hearth can be increased, so that the main hearth can be started at a lower bed temperature after fire pressing;
5. when high-temperature flue gas enters from the water-cooled plenum of the main hearth, the bed temperature is more uniform along the vertical direction after the fire is pressed, and heat accumulation of the bed materials can be greatly utilized.
The invention also provides a main hearth and an auxiliary hearth which are communicated, so that the bed material in the main hearth can be transported into the auxiliary hearth, the auxiliary hearth is started by the bed material in the main hearth, the secondary application of the bed material is realized, the use amount of the bed material is reduced, and the energy consumed for heating the bed material can be reduced by directly utilizing the hot bed material in the main hearth.
Drawings
In order that the invention may be more readily understood, a more particular description of the invention will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings, in which:
FIG. 1 is a schematic diagram of the two-stage series connection of a deep peaking cycle fluid bed boiler of the present invention.
The reference numerals of the specification are that 1, a main hearth, 2, an auxiliary hearth, 3, a main air distribution plate, 4, an auxiliary air distribution plate, 5, a conveying connecting pipe, 6, a control valve, 7, an auxiliary hearth cyclone separator, 8, a flue gas outlet, 9, an adiabatic connecting pipe, 10, a main hearth water-cooling air chamber, 11, an auxiliary fluidization air pipeline, 12, a fluidization air valve and 13, an auxiliary coal feeder.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and specific examples, which are not intended to be limiting, so that those skilled in the art will better understand the invention and practice it.
The invention discloses a two-stage series-connection deep peak regulation circulating fluidized bed boiler, which comprises a main hearth system and an auxiliary hearth system, wherein the main hearth system can be used as a coal-fired power generation unit for carrying out coal-fired treatment with high efficiency and low pollution, the peak regulation capacity of the main hearth system can effectively improve the new energy consumption capacity of a power grid and slow down the dispatching pressure of the power grid, and in the embodiment, the auxiliary hearth system is arranged to be matched with the main hearth system in the peak regulation process.
The main hearth system comprises a main hearth 1, a main air distribution plate 3 arranged in the main hearth 1 and a main hearth water-cooling air chamber 10 arranged below the main air distribution plate 3, wherein the auxiliary hearth system comprises an auxiliary hearth 2, an auxiliary air distribution plate 4 arranged in the auxiliary hearth 2, an auxiliary hearth water-cooling air chamber arranged below the auxiliary air distribution plate 4 and an auxiliary hearth cyclone separator 7 communicated with the auxiliary hearth 2;
In this embodiment, the flue gas outlet 8 of the auxiliary furnace cyclone separator 7 is configured to be communicated with the main furnace water-cooling air chamber 10, and high-temperature flue gas generated by burning bed materials in the auxiliary furnace 2 can be discharged into the main furnace water-cooling air chamber 10 through the auxiliary furnace cyclone separator 7, so that heat can be provided when the main furnace 1 is fired by using the auxiliary furnace 2, more qualified steam can be generated, the firing duration of the main furnace 1 is prolonged, and heat exchange of a heating surface of a tail flue can be increased after the flue gas of the auxiliary furnace 2 enters the tail flue of the main furnace 1, so that the steam temperature is increased.
Specifically, after the auxiliary flue gas enters the main hearth 1, the flue gas in the hearth is changed from a stagnation state to a flowing state, so that the accumulation of combustible gas in the hearth can be reduced, and the risk of fire-lifting explosion after the main hearth 1 is fired is reduced.
Specifically, when high-temperature flue gas enters from the main hearth water-cooled plenum 10, the temperature of primary air entering the main hearth 1 can be increased, so that the furnace can be started at a lower bed temperature after being fired;
specifically, when high-temperature flue gas enters from the main hearth water-cooled plenum 10, the bed temperature after the fire is pressed is more uniform along the vertical direction, and the heat accumulation of the bed material can be greatly utilized.
In practical design, in order to let in main furnace water-cooling plenum 10 with high temperature flue gas from auxiliary furnace cyclone 7, auxiliary furnace cyclone 7 with main furnace water-cooling plenum 10 is through adiabatic connecting pipe 9 intercommunication, adiabatic connecting pipe 9's one end with auxiliary furnace cyclone 7's flue gas outlet 8 communicates, adiabatic connecting pipe 9's the other end and main furnace water-cooling plenum 10 communicate, adiabatic connecting pipe 9 can play certain thermal-insulated effect, can prevent the heat dissipation of high temperature flue gas in the transportation.
In the embodiment shown in fig. 1, the heat-insulating connecting pipe 9 is provided with only one air inlet and one air outlet, and high-temperature flue gas can only enter the main hearth water-cooling air chamber 10 from one position, and in actual use, the heat-insulating connecting pipe 9 can be improved, and the heat-insulating connecting pipe 9 is provided with an air inlet communicated with the auxiliary hearth cyclone 7 and a plurality of air outlets communicated with the main hearth water-cooling air chamber 10, so that the high-temperature flue gas can be discharged into the main hearth water-cooling air chamber 10 from the air outlets, and the distribution of the high-temperature flue gas is more uniform, thereby the temperature distribution of the main hearth 1 is more uniform.
In this embodiment, the main air distribution plate 3 and the auxiliary air distribution plate 4 are both configured to carry bed materials, the main hearth 1 is communicated with the auxiliary hearth 2, the bed materials in the main hearth 1 can be transported to the auxiliary hearth 2, the auxiliary hearth 2 is started by using the bed materials in the main hearth 1, the secondary application of the bed materials is realized, the usage amount of the bed materials is reduced, and in addition, the hot bed materials in the main hearth 1 are directly utilized, so that the energy consumption for heating the bed materials can be reduced.
In actual design, in order to carry the bed material in the main furnace 1 to the auxiliary furnace 2 be provided with between main furnace 1 and the auxiliary furnace 2 and carry connecting pipe 5, carry connecting pipe 5 both ends respectively with main furnace 1 and auxiliary furnace 2 intercommunication, carry connecting pipe 5 both ends to set up respectively main air distribution plate 3 and auxiliary air distribution plate 4's top, the bed material that bears on the main air distribution plate 3 can export to auxiliary air distribution plate 4 through carrying connecting pipe 5.
In this embodiment, the end of the conveying connection pipe 5, which is communicated with the main furnace chamber 1, is set to be higher than the end of the conveying connection pipe 5, which is communicated with the auxiliary furnace chamber 2, and the conveying of the bed material is realized by using gravity.
In other embodiments, other feeding modes may be used, for example, a feeding pump or a vibration feeding device may be provided, so long as unidirectional feeding of the main furnace 1 to the auxiliary furnace 2 can be achieved.
In order to further perfect the auxiliary furnace system, the auxiliary furnace system has the capability of continuously vulcanizing and generating high-temperature smoke, a fluidization air device and a feeding device are also required to be arranged in the auxiliary furnace system,
Referring to FIG. 1, the auxiliary furnace system further comprises an auxiliary fluidization air duct 11 communicated with the auxiliary furnace water-cooling air chamber and a fluidization air valve 12 arranged on the auxiliary fluidization air duct 11, wherein the auxiliary fluidization air duct 11 continuously provides air for vulcanization, so that bed materials in the auxiliary furnace 2 are vulcanized, and high-temperature flue gas is generated.
Specifically, when the auxiliary fluidization air duct 11 is provided, the auxiliary fluidization air duct may be communicated with an independent fluidization fan, and air for vulcanization may be independently provided for the auxiliary fluidization air duct 11, or may be communicated with a main fluidization air system through which air for vulcanization is provided for the auxiliary fluidization air duct 11.
Referring to fig. 1, the auxiliary furnace system further comprises an auxiliary coal feeder 13 communicated with the auxiliary furnace 2, wherein the auxiliary coal feeder 13 continuously conveys bed materials into the auxiliary furnace 2, so that the supply quantity of the bed materials in the auxiliary furnace 2 is ensured, and the auxiliary furnace 2 can continuously generate high-temperature flue gas.
Specifically, the refractory layers are poured on the inner walls of the main hearth 1 and the auxiliary hearth 2, the heat insulation effect can be improved through the refractory layers, the internal temperatures of the main hearth 1 and the auxiliary hearth 2 are high, the combustion temperature of the bed material is increased, and the burnout rate of the bed material is improved.
In addition, the water cooling pipe is buried in the refractory layer, so that the heat exchange amount can be increased when the fire-extinguishing treatment is performed, and the evaporation amount of the boiler at low load can be increased.
The specific peak regulation process of the two-stage series-connection deep peak regulation circulating fluidized bed boiler comprises the following steps:
Before the boiler carries out deep peak regulation and fire pressing, the control valve 6 is opened, so that hot bed materials in the main hearth 1 enter the auxiliary air distribution plate 4 in the auxiliary hearth 2 through the conveying connecting pipe 5, and when the bed material quantity of the auxiliary hearth 2 meets the operation requirement, the control valve 6 is closed.
After the boiler depth peak regulation main hearth 1 is fired, a fluidization air valve 12 arranged on an auxiliary fluidization air pipeline 11 is opened to fluidize bed materials in the auxiliary hearth 2, then the auxiliary coal feeder 13 is used for continuously adding the bed materials into the auxiliary hearth 2 for combustion, high-temperature flue gas generated by combustion enters the main hearth 1 from a main hearth water-cooling air chamber 10 through an adiabatic connecting pipe 9, the bed materials are heated after the high-temperature flue gas enters the main hearth 1, so that the temperature of the bed materials is more uniform, and heat is transferred to a heating surface of the main hearth 1, so that qualified steam is generated during firing to maintain low-output operation of the steam turbine.
During the firing of the main furnace 1, the high temperature flue gas can heat the primary air of the main furnace 1, so that the temperature of the primary air is significantly increased, the main furnace 1 can be started at a lower bed temperature, and the firing duration is further prolonged.
During ignition of the main hearth 1, the high-temperature flue gas can heat primary air of the main boiler, so that the temperature of the primary air is obviously increased, and the consumption of fuel oil for ignition is reduced.
It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations and modifications of the present invention will be apparent to those of ordinary skill in the art in light of the foregoing description. It is not necessary here nor is it exhaustive of all embodiments. While still being apparent from variations or modifications that may be made by those skilled in the art are within the scope of the invention.
Claims (10)
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| CN202510162852.9A CN119617405B (en) | 2025-02-14 | 2025-02-14 | Two-stage series-connection deep peak regulation circulating fluidized bed boiler |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108518672A (en) * | 2018-03-30 | 2018-09-11 | 清华大学 | A kind of low nitrogen burning circulating fluidized bed boiler |
| CN112460586A (en) * | 2019-10-29 | 2021-03-09 | 辽宁绿源能源环保科技集团有限责任公司 | Desulfurization and denitrification method for layer-combustion boiler |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CA328621A (en) * | 1932-12-20 | Lee Tuppen Gerard | Incinerator | |
| SU457728A1 (en) * | 1974-02-04 | 1975-01-25 | Предприятие П/Я А-1336 | The method of burning pellets on a conveyor machine |
| CN101055079A (en) * | 2006-04-14 | 2007-10-17 | 管理 | Outer circulation coal-firing smoke-eliminating heat-conductive oil oven capable of combining searching and firing industrial waste gas |
| US10197014B2 (en) * | 2016-08-30 | 2019-02-05 | Thermochem Recovery International, Inc. | Feed zone delivery system having carbonaceous feedstock density reduction and gas mixing |
| CN107388244B (en) * | 2017-07-17 | 2018-12-11 | 清华大学 | A kind of multipaths Horizontal CFB Boiler and its control method |
| PL4022221T3 (en) * | 2020-02-20 | 2023-09-18 | Doosan Lentjes Gmbh | Method for operating a fluidized bed apparatus and fluidized bed apparatus |
| FR3125441B1 (en) * | 2021-07-23 | 2023-07-14 | Ifp Energies Now | CLC process and installation with recovery of gaseous oxygen produced by an oxygen carrier |
| CN113819460B (en) * | 2021-11-02 | 2023-07-25 | 江门市同力环保科技有限公司 | Low-nitrogen combustion ammonia-free denitration method for medium-sized and small circulating fluidized bed boiler |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108518672A (en) * | 2018-03-30 | 2018-09-11 | 清华大学 | A kind of low nitrogen burning circulating fluidized bed boiler |
| CN112460586A (en) * | 2019-10-29 | 2021-03-09 | 辽宁绿源能源环保科技集团有限责任公司 | Desulfurization and denitrification method for layer-combustion boiler |
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