CN112197286A - Biomass boiler flue gas multi-pollutant collaborative ultra-low emission control system - Google Patents

Biomass boiler flue gas multi-pollutant collaborative ultra-low emission control system Download PDF

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Publication number
CN112197286A
CN112197286A CN202011255301.0A CN202011255301A CN112197286A CN 112197286 A CN112197286 A CN 112197286A CN 202011255301 A CN202011255301 A CN 202011255301A CN 112197286 A CN112197286 A CN 112197286A
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biomass boiler
denitration
flue gas
dust collector
deacidification device
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CN202011255301.0A
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Inventor
李东阳
张超
胡斌
唐恒岩
荆涛
李庆芝
段荣明
郭斌
白小锋
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Xian Thermal Power Research Institute Co Ltd
Xian Xire Boiler Environmental Protection Engineering Co Ltd
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Xian Thermal Power Research Institute Co Ltd
Xian Xire Boiler Environmental Protection Engineering Co Ltd
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Priority to CN202011255301.0A priority Critical patent/CN112197286A/en
Publication of CN112197286A publication Critical patent/CN112197286A/en
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    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
    • B01D50/20—Combinations of devices covered by groups B01D45/00 and B01D46/00
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/46—Removing components of defined structure
    • B01D53/48—Sulfur compounds
    • B01D53/50—Sulfur oxides
    • B01D53/507—Sulfur oxides by treating the gases with other liquids
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/46—Removing components of defined structure
    • B01D53/48—Sulfur compounds
    • B01D53/50—Sulfur oxides
    • B01D53/508—Sulfur oxides by treating the gases with solids
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/46—Removing components of defined structure
    • B01D53/54—Nitrogen compounds
    • B01D53/56—Nitrogen oxides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/46—Removing components of defined structure
    • B01D53/54—Nitrogen compounds
    • B01D53/56—Nitrogen oxides
    • B01D53/565—Nitrogen oxides by treating the gases with solids
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/77—Liquid phase processes
    • B01D53/78—Liquid phase processes with gas-liquid contact
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/81—Solid phase processes
    • B01D53/83—Solid phase processes with moving reactants
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2251/00—Reactants
    • B01D2251/20—Reductants
    • B01D2251/206—Ammonium compounds
    • B01D2251/2067—Urea
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2258/00—Sources of waste gases
    • B01D2258/02—Other waste gases
    • B01D2258/0283—Flue gases

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Analytical Chemistry (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chimneys And Flues (AREA)
  • Treating Waste Gases (AREA)

Abstract

The invention discloses a biomass boiler flue gas multi-pollutant synergistic ultralow emission control system, which comprises a selective non-catalytic reduction denitration device, a biomass boiler, a tail flue, a cyclone dust collector, a rotary spray deacidification device, a bag-type dust collector and a solid polymer composite denitration deacidification device, wherein the selective non-catalytic reduction denitration device is arranged on the tail flue; the selective non-catalytic reduction denitration device and the solid polymer composite denitration and deacidification device are distributed at different positions of the boiler. The selective non-catalytic reduction denitration device is arranged at a position where the temperature zone of the biomass boiler is 850-1050 ℃. The solid polymer composite denitration and deacidification device is arranged at a position where the temperature interval of the biomass boiler is 600-850 ℃. Boiler afterbody export is linked together with cyclone's entry, and cyclone's export is linked together through the entry of rotatory spraying deacidification device and sack cleaner and chimney, and biomass boiler's exit is provided with a plurality of spray guns, and wherein, the export of the compound denitration deacidification device of solid-state polymer is linked together with the entry of each shower nozzle, and this system can realize that multiple flue gas pollutant of biomass boiler is minimum to be discharged, and economic nature is better, and can guarantee the high-efficient operation of system safety and stability.

Description

Biomass boiler flue gas multi-pollutant collaborative ultra-low emission control system
Technical Field
The invention relates to an ultralow emission control system, in particular to a biomass boiler flue gas multi-pollutant collaborative ultralow emission control system.
Background
The temperature difference in the biomass boiler is large, the biomass boiler mainly comprises a grate furnace and a circulating fluidized bed boiler, different furnace types are divided into a medium-temperature medium-pressure furnace, a secondary high-temperature secondary high-pressure furnace and a high-temperature high-pressure furnace, and the temperature of a hearth is 700-760 ℃, 800-950 ℃ and 850-1100 ℃. The moisture content of the biomass boiler flue gas is high, and the moisture content of the biomass boiler flue gas is as high as about 15-30% due to the high content of hydrogen elements in the biomass; and the moisture content of the flue gas of the coal-fired boiler can not exceed 10 percent. The smoke concentration of the biomass boiler smoke is not high, the content of alkali metal in the smoke is high and can reach more than 8 percentThe above. The concentration of original sulfur dioxide and nitrogen oxide in the flue gas is not high, but the fluctuation is large, and the content of nitrogen oxide is 150-350 mg/m when pure biomass is combusted3The sulfur dioxide content in the flue gas can fluctuate between 300 and 800mg/m, such as the doping of templates, wood, bark and the like in the fuel3Fluctuates between two times and can reach 800mg/m instantly3The above.
Therefore, the ultralow emission technology is difficult to realize according to the emission characteristics of the biomass boiler and the smoke pollutants. The flue gas fly ash of the biomass boiler has high contents of alkali metal such as K, Na, moisture and HCl, and the biomass ash has low melting point, so that the selective catalytic reduction denitration catalyst is easy to block and poison. The temperature of a biomass hearth is lower, the temperature of a circulating fluidized bed boiler hearth is less than 750 ℃, the temperature of a grate boiler hearth is less than 850 ℃, and the temperature in the hearth is unstable and cannot be ultralow only by adopting a selective non-catalytic reduction denitration technology. Selective non-catalytic reduction denitration easily produces ammonium bisulfate, causes corrosion and dust deposition of a low-temperature section of a heat exchanger, and influences long-period stable operation of a boiler. The biomass boiler is unstable in combustion, fly ash is easy to carry sparks, and the direct application of the bag-type dust remover at the boiler outlet is easy to cause filter bag burning loss. The content of HCL in the flue gas of the biomass boiler is high, a wet flue gas desulfurization system is complex, and the problems of desulfurization wastewater treatment and smoke plume treatment exist in the follow-up process, so that an economical and reasonable ultralow emission control technology needs to be comprehensively researched.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a biomass boiler flue gas multi-pollutant collaborative ultra-low emission control system, which can realize ultra-low emission of various flue gas pollutants of a biomass boiler, has better economical efficiency and can ensure safe, stable and efficient operation of the system.
In order to achieve the aim, the system for controlling the synergistic ultralow emission of the multiple pollutants in the flue gas of the biomass boiler comprises a selective non-catalytic reduction denitration device, the biomass boiler, a tail flue, a cyclone dust collector, a rotary spray deacidification device, a bag-type dust collector and a solid polymer composite denitration deacidification device;
the outlets of the selective non-catalytic reduction denitration device and the solid polymer composite denitration and deacidification device are respectively arranged at different temperature window positions in the biomass boiler, the outlet of the biomass boiler is communicated with the inlet of the tail flue, the outlet of the tail flue is communicated with the inlet of the cyclone dust collector, and the outlet of the cyclone dust collector is communicated with the inlet of the chimney through the rotary spraying and deacidification device and the bag-type dust collector.
The cyclone dust collector, the rotary spraying deacidification device and the bag-type dust collector are integrally arranged, and an outlet is communicated with a chimney through a draught fan.
And a coal economizer and an air preheater are sequentially arranged in the tail flue along the flowing direction of the flue gas.
Selective non-catalytic reduction denitration sprayed by a selective non-catalytic reduction denitration device enters a biomass boiler to be subjected to primary denitration treatment, a high-molecular organic active amino compound denitration desulfurizer output by a solid-state high-molecular composite denitration and deacidification device is sprayed into an outlet of the biomass boiler through a spray head to realize secondary denitration and primary desulfurization treatment of smoke, the smoke output by the biomass boiler enters a cyclone dust collector to be subjected to primary dust removal after being subjected to heat exchange and cooling through an economizer and an air preheater, then enters a rotary spray deacidification device to be subjected to secondary desulfurization treatment, then is subjected to secondary dust removal through a bag-type dust collector, and finally is discharged through an induced draft fan and a chimney, so that ultra-low emission of smoke and dust particles is.
The high-molecular organic active amino compound denitration desulfurizer is prepared by mixing and curing carbon powder, diurea, carbamide, cyanuric acid, melamine, a catalyst and a stabilizer.
The macromolecular organic active amino compound is white or yellow powder solid, the particle size range is 80-150 meshes, the reaction temperature window with flue gas is 600-850 ℃, the reaction time is 1-4 s, the denitration efficiency is more than 80%, and the desulfurization efficiency is more than 50%.
And adjusting the spraying amount of the solid polymer composite denitration and deacidification device and the rotary spraying and deacidification device according to the load and the pollutant concentration of the biomass boiler, so as to realize the combined desulfurization inside and outside the biomass boiler.
The cyclone dust collector and the bag-type dust collector operate cooperatively to realize ultralow emission of smoke and dust particles.
The invention has the following beneficial effects:
when the biomass boiler flue gas multi-pollutant synergistic ultralow emission control system is specifically operated, denitration and partial deacidification treatment of flue gas in a boiler are realized through the selective non-catalytic reduction denitration device and the solid polymer composite denitration and deacidification device, SO that ultralow emission of NOx is realized, the flue gas enters the cyclone dust collector for preliminary flue gas dedusting, most of plant ash in the flue gas is removed and independently recycled, and then the flue gas enters the rotary spray deacidification device for further flue gas deacidification, SO that SO is realized2The ultra-low emission is realized, the ultra-low emission of smoke and dust particles is realized through the bag-type dust collector, the smoke is finally discharged through the chimney, the whole system is small in occupied area, the investment and operation maintenance cost is low, the operation cost is reduced by more than 30% compared with other systems, and the economical efficiency is good. Through practice, the flue gas discharged by the invention stably realizes that NOx is less than or equal to 50mg/m for a long time3，SOx≤35mg/m3Smoke dust less than or equal to 2mg/m3And effectively remove other pollutants such as HCL, HF, alkali metal, heavy metal and the like. In addition, no wastewater is discharged in the whole pollutant removal process, and the by-product is in a dry state without a wastewater treatment system. Meanwhile, the system discharges dry flue gas, the temperature of the flue gas is about 90 ℃, the chimney does not need to be protected from corrosion, and visual pollution is avoided.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Wherein, 1 is a biomass boiler, 2 is a selective non-catalytic reduction denitration device, 3 is a solid polymer composite denitration and deacidification device, 4 is an economizer, 5 is an air preheater, 6 is a cyclone dust collector, 7 is a rotary spray deacidification device, 8 is a bag-type dust collector, 9 is an induced draft fan, and 10 is a chimney.
Detailed Description
The invention is described in further detail below with reference to the accompanying drawings:
referring to fig. 1, the system for controlling the synergistic ultralow emission of multiple pollutants in flue gas of a biomass boiler comprises a biomass boiler 1, a selective non-catalytic reduction denitration device 2, a solid polymer composite denitration and deacidification device 3, a tail flue, a cyclone dust collector 6, a rotary spray deacidification device 7 and a bag-type dust collector 8;
the outlet of the selective non-catalytic reduction denitration device 2 and the outlet of the solid polymer composite denitration and deacidification device 3 are arranged at different temperature positions of the biomass boiler 1, a plurality of spray guns are arranged at the outlet of the biomass boiler 1, and the outlet of the solid polymer composite denitration and deacidification device 3 is communicated with the inlet of each spray gun. The outlet of the biomass boiler 1 is communicated with the inlet of the tail flue, the outlet of the tail flue is communicated with the inlet of the cyclone dust collector 6, and the outlet of the cyclone dust collector 6 is communicated with the inlet of the chimney 10 through the rotary spray deacidification device 7 and the bag-type dust collector 8.
The outlet of the bag-type dust collector 8 is communicated with a chimney 10 through an induced draft fan 9. The coal economizer 4 and the air preheater 5 are sequentially arranged in the tail flue along the flowing direction of the flue gas.
During operation, firstly, a reducing agent sprayed by the selective non-catalytic reduction denitration device 2 enters the biomass boiler 1 to be subjected to primary denitration treatment, a high-molecular organic active amino compound denitration desulfurizer output by the solid-state high-molecular composite denitration and deacidification device 3 is sprayed into a proper position of the biomass boiler 1 through a spray gun to realize secondary denitration and primary desulfurization treatment of flue gas, the flue gas output by the biomass boiler 1 enters the cyclone dust collector 6 to be subjected to primary dust removal after being subjected to heat exchange and temperature reduction through the economizer 4 and the air preheater 5, then enters the rotary spray deacidification device 7 to be subjected to secondary desulfurization treatment, then is subjected to secondary dust removal through the bag-type dust collector 8, and finally is discharged through the draught fan 9 and the chimney 10 to realize ultra-low emission of smoke.
The high-molecular organic active amino compound denitration desulfurizer is prepared by mixing and curing carbon powder, diurea, carbamide, cyanuric acid, melamine, a catalyst and a stabilizer, wherein the high-molecular organic active amino compound is white or yellow powder solid, the particle size range is 80-150 meshes, the reaction temperature window with flue gas is 600-850 ℃, the reaction time is 1-4 s, the denitration efficiency is more than 80%, and the desulfurization efficiency is more than 50%.
The spraying amount of the solid polymer composite denitration and deacidification device 3 and the spraying amount of the rotary spraying and deacidification device 7 are adjusted according to the load of the biomass boiler 1 and the pollutant concentration, so that the combined desulfurization inside and outside the boiler of the biomass boiler 1 is realized.
Through cyclone 6, collect and utilize a large amount of plant ashes in the flue gas, avoid the boiler combustion to insufficiently cause the flying dust mars to carry, cyclone 6 and sack cleaner 8 high-efficient operation in coordination realize the ultralow emission of smoke and dust particulate matter.
The selective non-catalytic reduction denitration device 2 sprays reducing agents such as urea into the furnace to perform selective reaction with NOx without using a catalyst, so that the reducing agents are added into a high-temperature region, the optimal temperature of the reducing agent spraying point is 850-1150 ℃, and the amino reducing agents such as urea are rapidly thermally decomposed into NH3And reacts with NOx in the flue gas to generate N2The process is completed in the hearth. NH (NH)3The optimal reaction temperature range is 850-1050 ℃. The selective non-catalytic reduction denitration device 2 comprises a urea solution storage and dissolution system, a urea solution conveying system, a stokehole injection system, a compressed air system and an online monitoring system. The conveying spray gun adopts a gas-liquid two-phase fluid spraying system and consists of a nozzle, a spray gun rod, a protective sleeve, a cooling sleeve and a connecting piece. The nozzle, the outer sleeve of the spray gun rod, the mounting sleeve, the quick connector and the like are made of 310S materials, and the conveying inner rod is made of 316L materials.
The reaction temperature range suitable for the solid polymer composite desulfurization and deacidification agent is 600-850 ℃, the reducing agent is sprayed into a hearth reaction region, and the reducing agent rapidly reacts with NOx in the flue gas under the action of active ingredients of the reducing agent to generate N2The technology also takes a hearth as a reactor, and the solid polymer composite denitration and deacidification device 3 comprises an amino reducing agent storage system, a conveying gas source system, a reducing agent conveying system, a stokehole injection system and an online monitoring system. The powder spray gun is sprayed into the hearth by adopting a gas-solid conveying system, the number of the spray guns is set according to specific conditions, and the spray gun consists of a spray gun rod, a sight glass and a connecting piece. The spray gun rod is made of 310S materials, the sight glass is made of 316L + organic glass materials, and the material conveying state can be observed through the sight glass in the powder conveying process.
The NOx concentration of the boiler flue gas is 350mg/m3The denitration efficiency of the selective non-catalytic reduction denitration device 2 is 50%, the denitration efficiency of the solid polymer composite denitration and deacidification device 3 is more than 80%, and the two devices can realize the ultralow NOx emission of less than 50mg/m in cooperative operation3。
Biomass boiler 1 flue gas SO2The normal operation concentration is less than 500mg/m3Maximum concentration 800mg/m3The deacidification efficiency of the solid polymer composite denitration deacidification device 3 is more than 60 percent, the deacidification efficiency of the external rotary spraying deacidification device 7 is more than 90 percent, and the SO can be controlled by the cooperative operation of the solid polymer composite denitration deacidification device and the external rotary spraying deacidification device2Ultralow emission of 35mg/m3The following.
The smoke concentration of the smoke dust of the biomass boiler 1 in normal operation is less than 10g/m3Maximum soot concentration of 20g/m3The dust removal efficiency of the cyclone dust collector 6 is more than 70 percent, the dust removal efficiency of the bag-type dust collector 8 is more than 99.9 percent, and the two can control the ultra-low emission of 2mg/m smoke dust by the cooperative operation3。
In actual operation, the selective non-catalytic reduction denitration device 2, the solid polymer composite denitration and deacidification device 3 and the rotary spraying and deacidification device 7 are jointly controlled, and after accounting according to economic and technical indexes, the operation mode is adjusted on line in real time, so that the cooperative control of various pollutants is realized.

Claims (8)

1. A biomass boiler flue gas multi-pollutant synergetic ultralow emission control system is characterized by comprising a biomass boiler (1), a selective non-catalytic reduction denitration device (2), a solid polymer composite denitration and deacidification device (3), a tail flue, a cyclone dust collector (6), a rotary spray deacidification device (7) and a bag-type dust collector (8);
the selective non-catalytic reduction denitration device (2) and the solid polymer composite denitration and deacidification device (3) are respectively arranged at different temperature window positions inside the biomass boiler (1), the outlet of the biomass boiler (1) is communicated with the inlet of the tail flue, the outlet of the tail flue is communicated with the inlet of the cyclone dust collector (6), and the outlet of the cyclone dust collector (6) is communicated with the inlet of a chimney (10) through the rotary spray deacidification device (7) and the cloth bag dust collector (8).
2. The biomass boiler flue gas multi-pollutant collaborative ultra-low emission control system according to claim 1, characterized in that a cyclone dust collector (6), a rotary spray deacidification device (7) and a bag-type dust collector (8) are integrally arranged, and an outlet is communicated with a chimney (10) through an induced draft fan (9).
3. The system for controlling the synergistic ultralow emission of the multiple pollutants in the flue gas of the biomass boiler according to the claim 1, is characterized in that an economizer (4) and an air preheater (5) are sequentially arranged in the tail flue along the flow direction of the flue gas.
4. The system for controlling the synergistic ultra-low emission of multiple pollutants in the flue gas of the biomass boiler according to claim 2, wherein, during operation, the selective non-catalytic reduction denitration agent sprayed out of the selective non-catalytic reduction denitration device (2) enters the biomass boiler (1) for primary denitration treatment, the high molecular organic active amino compound denitration desulfurizer output by the solid high molecular compound denitration and deacidification device (3) is sprayed into the outlet of the biomass boiler (1) through a spray gun to realize secondary denitration and primary desulfurization treatment of the flue gas, the flue gas of the biomass boiler (1) enters the cyclone dust collector (6) for primary dust removal after being subjected to heat exchange and temperature reduction through the economizer (4) and the air preheater (5), then enters the rotary spray deacidification device (7) for secondary desulfurization treatment, and then is subjected to secondary dust removal through the bag-type dust collector (8), and finally, the smoke dust particles are discharged through a chimney (10) to realize the ultralow emission of the smoke dust particles.
5. The system for controlling the synergistic ultralow emission of the multiple pollutants in the flue gas of the biomass boiler according to claim 1, wherein the high molecular organic active amino compound denitration desulfurizer is prepared by mixing and curing several of carbon powder, diurea, carbamide, cyanuric acid, melamine, a catalyst and a stabilizer.
6. The system for controlling the synergistic ultralow emission of the multiple pollutants in the flue gas of the biomass boiler according to claim 1, wherein the high-molecular organic active amino compound is white or yellow powder solid, the particle size range is 80-150 meshes, the reaction temperature window with the flue gas is 600-850 ℃, the reaction time is 1-4 s, the denitration efficiency is greater than 80%, and the desulfurization efficiency is greater than 50%.
7. The system for controlling the synergistic ultralow emission of the multiple pollutants in the flue gas of the biomass boiler according to claim 1, is characterized in that the injection amount of the solid polymer composite denitration and deacidification device (3) and the rotary spray deacidification device (7) is adjusted according to the load and the pollutant concentration of the biomass boiler (1), so that the combined desulfurization inside and outside the boiler of the biomass boiler (1) is realized.
8. The biomass boiler flue gas multi-pollutant collaborative ultra-low emission control system according to claim 1 is characterized in that ultra-low emission of smoke and dust particles is achieved through the collaborative operation of the cyclone dust collector (6) and the bag-type dust collector (8).
CN202011255301.0A 2020-11-11 2020-11-11 Biomass boiler flue gas multi-pollutant collaborative ultra-low emission control system Pending CN112197286A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116624862A (en) * 2023-07-21 2023-08-22 光大环境科技（中国）有限公司 Biomass gasification synthetic gas direct-combustion heat supply device and processing method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116624862A (en) * 2023-07-21 2023-08-22 光大环境科技（中国）有限公司 Biomass gasification synthetic gas direct-combustion heat supply device and processing method

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