CN112221319A - Reactive type cooperative purification method and device for smoke pollutants - Google Patents
Reactive type cooperative purification method and device for smoke pollutants Download PDFInfo
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- CN112221319A CN112221319A CN202011070887.3A CN202011070887A CN112221319A CN 112221319 A CN112221319 A CN 112221319A CN 202011070887 A CN202011070887 A CN 202011070887A CN 112221319 A CN112221319 A CN 112221319A
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- 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
- B01D53/26—Drying gases or vapours
- B01D53/265—Drying gases or vapours by refrigeration (condensation)
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/02—Particle separators, e.g. dust precipitators, having hollow filters made of flexible material
- B01D46/023—Pockets filters, i.e. multiple bag filters mounted on a common frame
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/02—Particle separators, e.g. dust precipitators, having hollow filters made of flexible material
- B01D46/04—Cleaning filters
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/66—Regeneration of the filtering material or filter elements inside the filter
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- 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
- B01D53/02—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 by adsorption, e.g. preparative gas chromatography
- B01D53/06—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 by adsorption, e.g. preparative gas chromatography with moving adsorbents, e.g. rotating beds
- B01D53/10—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 by adsorption, e.g. preparative gas chromatography with moving adsorbents, e.g. rotating beds with dispersed adsorbents
- B01D53/12—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 by adsorption, e.g. preparative gas chromatography with moving adsorbents, e.g. rotating beds with dispersed adsorbents according to the "fluidised technique"
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- 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
Abstract
The invention discloses a reactive type collaborative purification method and a reactive type collaborative purification device for smoke pollutants, which relate to the technical field of smoke dust removal, and comprise a flue, fresh air adding equipment, solid adsorption material adding equipment, a bag type dust collector and an induced draft fan; when the method works, raw flue gas of a boiler enters a flue gas pipeline; meanwhile, an air compressor compresses air into an air storage tank, and the air is dried by a cold dryer; the solid adsorbent enters the Venturi injection device from the adsorbent bin through the disk feeder; one path of the compressed air is used for continuously injecting the solid adsorbent into the flue gas pipeline through the Venturi injection device; the other path is used for pulse injection of a dust remover; starting an induced draft fan, forming a negative pressure environment in a flue gas pipeline, enabling the flue gas, air and the solid adsorbent to enter a bag type dust collector from the bag type dust collector together, and starting electric tracing at the bottom of the dust collector to start to purify the flue gas; the method adopts a mode of combining adsorption, chemical reaction and bag type dust removal to remove pollutants in the flue gas of the coal-fired boiler cooperatively.
Description
Technical Field
The invention relates to the technical field of flue gas dust removal, in particular to a reactive type collaborative purification method and a reactive type collaborative purification device for flue gas pollutants.
Background
At present, due to the large smoke emission of equipment such as coal-fired power plants, industrial boilers and the like, especially the emission of harmful substances containing a large amount of sulfur dioxide, nitrogen oxides, trace organic matters and heavy metals causes great harm to the health of human beings. The common methods for treating flue gas include limestone/gypsum flue gas desulfurization, ammonia flue gas desulfurization, seawater flue gas desulfurization technology, semidry flue gas desulfurization and the like, which have different advantages and disadvantages. For the traditional wet limestone/gypsum method flue gas desulfurization technology, the construction cost is low, the completion time is short, so that a plurality of power plant desulfurization devices need to be continuously perfected, optimized and modified after being put into operation, a plurality of devices are damaged too quickly and replaced in advance, and the large maintenance workload of a desulfurization system is the main reason of low utilization rate of the conventional desulfurization devices; the ammonia flue gas desulfurization has the defects of high cost, serious equipment corrosion, ammonia gas escape and the like; the rotary spray drying method has the advantages of simple flue gas industrial desulfurization technology, low investment, low operation cost, quite reliable operation, no scaling and blockage, low corrosivity to equipment and low efficiency.
The existing mature industrial technologies for flue gas denitration mainly comprise a Selective Catalytic Reduction (SCR) method and a selective non-catalytic reduction (SNCR) method, and other flue gas denitration technologies are not mature yet and need to be improved to determine the optimal application conditions. Because the SNCR is greatly influenced by the structural size of the boiler, the SNCR is mainly used as a supplementary treatment means of low-nitrogen combustion technology. The boiler has the advantages of low construction cost, simple arrangement and small occupied area, is suitable for the transformation of old factories, and can be matched and used by new factories according to the design of boilers. Compared with an SNCR process, the SCR method has the technical characteristics of low working temperature and high denitration efficiency, the denitration rate of the SNCR method is only about 30%, the SCR process can reach more than 90%, reaction products are nitrogen and water, the escape rate of outlet ammonia gas is less than 3ppm (ppm-one hundred thousand), and secondary pollution is avoided. However, the urban industrial boiler generally cannot run economically, and the excess air coefficient is large, the heat efficiency is low, the coal consumption is large, and the total smoke emission amount is large. Most of the traditional desulfurization and denitrification are removed step by step, and the process is complex; the adsorbent is expensive, the catalyst is difficult to recover, and the occupied area is large, so that the cost of one-time investment is high.
Although sulfur dioxide and nitrogen oxides in the flue gas can be removed by adopting a flue gas desulfurization and denitrification combined technology, trace organic matters and heavy metals of PM2.5 and precursors thereof in the flue gas cannot be simultaneously removed, and the organic matters and the heavy metals cause serious harm to the environment and human health.
Disclosure of Invention
The invention aims to provide a reactive type collaborative purification method and a reactive type collaborative purification device for flue gas pollutants, which are used for solving the problems in the prior art and cooperatively removing the pollutants in the flue gas of a coal-fired boiler by adopting a mode of combining adsorption and bag type dust removal.
In order to achieve the purpose, the invention provides the following scheme:
the invention provides a reactive type collaborative purification method for smoke pollutants, which comprises the following steps:
step one; the original flue gas of the boiler enters a flue gas pipeline from an air inlet; meanwhile, the air compressor compresses air into an air storage tank, and the air is dried by a cooling dryer to obtain anhydrous and oilless compressed air;
step two; the solid adsorbent is uniformly mixed from the adsorbent bin through the disk feeder and then enters the Venturi injection device;
step three; the compressed air in the step one is divided into two paths, wherein one path of compressed air is used for continuously injecting the solid adsorbent into the flue gas pipeline through the Venturi injection device; the other path of compressed air is used for pulse injection of a dust remover;
step four; starting an induced draft fan, forming a negative pressure environment in a flue gas pipeline under the action of the induced draft fan, enabling flue gas, air and a solid adsorbent to enter a bag type dust collector from the lower part of the bag type dust collector together, and starting electric tracing at the bottom of the dust collector;
step five; in the bag type dust collector, the volume of the heated smoke expands, a part of dust and powder slag with large volume falls into a dust hopper under the action of inertia or natural sedimentation and the like, the rest smoke particles and solid adsorbents ascend with the smoke airflow and enter a cloth bag, the particles are retained outside the cloth bag after the solid adsorbents in the cloth bag and the bag type dust collector are cooperatively purified, and the purified smoke enters an upper box body from the inside of the cloth bag, is discharged from an air outlet and is led out by an induced draft fan to enter a chimney; when the parameters of each index in the flue gas are unchanged, stopping feeding, closing the flue gas inlet and the induced draft fan, starting the dust remover to perform pulse blowing by utilizing one path of compressed air, starting dust removal vibration, performing dust removal, collecting ash samples, and closing the whole equipment.
Optionally, in the fifth step, the bag type dust collector adopts a pulse blowing ash removal mode, during pulse blowing, the ash removal airflow enables the pressure in the filter bag to rise, the filter bag expands outwards, and when the wall of the filter bag expands to a limit position, the tension enables the filter bag to be subjected to impact vibration and obtain reverse acceleration so as to start to contract inwards; so that the dust layer attached to the surface of the filter bag is not pulled off from the filter bag under the action of tension.
Optionally, the bag filter adopts a round bag filter or a flat bag filter according to the shape of the filter bag; the bag type dust collector adopts an inner filter type dust collector or an outer filter type dust collector according to the filtering direction of the filter bag; the filter bag of the bag type dust collector adopts a chemical fiber cloth bag filter material which is a coating film or a modified filter material such as polypropylene, acrylonitrile homopolymer, polyester, glass needled felt, polyphenylene sulfide, MATAMEX Meitas, P84, polytetrafluoroethylene fiber or nylon and the like.
Optionally, the temperature of the flue gas is between 80 ℃ and 300 ℃.
Optionally, the solid adsorbent in the adsorbent bin is a solid adsorbent material, and the solid adsorbent material is a mixture of one or more materials such as porous activated carbon-based material, activated silicon, diatomite, activated glue, molecular sieve, zeolite, fly ash, carbide slag, steel slag or red mud, or the materials are modified by seawater and alkali, or modified by combination of seawater and alkali.
The invention also provides a reactive type collaborative purification device for the smoke pollutants, which comprises an air storage tank and a bag type dust collector, wherein one end of the bag type dust collector is connected with a smoke pipeline, and the other end of the bag type dust collector is communicated with a chimney through an induced draft fan; the flue gas pipeline is communicated with a Venturi injection device, and the Venturi injection device is connected with an adsorbent bin through a disc feeder; a dust remover pulse injection device is installed above the bag type dust remover, an adsorbent waste bin is arranged at the bottom of the bag type dust remover, and electric tracing is installed in the bag type dust remover; one end of the air storage tank is connected with an air compressor, the other end of the air storage tank is connected with a cold dryer, and the cold dryer is respectively communicated with the Venturi injection device and the dust remover pulse injection device through pipelines; and the flue gas pipeline is provided with a flowmeter.
Optionally, one end of the adsorbent waste bin is communicated with one end, close to the bag type dust collector, of the flue gas pipeline, and the other end of the adsorbent waste bin is connected with a waste collecting device.
Compared with the prior art, the invention has the following technical effects:
the invention adopts a mode of combining adsorption and bag type dust removal to cooperatively remove SO in the flue gas of the coal-fired boiler2、NOXAnd particulate matter, and simultaneously removing PM2.5 and trace organic matters and heavy metals of precursors thereof. Has the advantages of high efficiency, cleanness, low cost and easy operation, and is a practical technology for solving the coal-fired flue gas pollution with low cost.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive exercise.
FIG. 1 is a schematic structural diagram of a reactive type cooperative purification device for flue gas pollutants according to the present invention;
wherein, 1 is the original flue gas of the boiler, 2 is the flowmeter, 3 is the flue gas pipeline, 4 is the air compressor machine, 5 is the gas holder, 6 is the cold drier, 7 is the adsorbent feed bin, 8 is the disk feeder, 9 is the venturi injection device, 10 is the dust remover pulse injection device, 11 is the bag collector, 12 is the dust removal rapping apparatus, 13 is the electric heat tracing, 14 is the adsorbent waste bin, 15 is the waste material collection device, 16 is the draught fan, 17 is the clean flue gas, 18 is the chimney.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention aims to provide a reactive type collaborative purification method and a reactive type collaborative purification device for flue gas pollutants, which are used for solving the problems in the prior art and cooperatively removing the pollutants in the flue gas of a coal-fired boiler by adopting a mode of combining adsorption and bag type dust removal.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
The invention provides a reactive type collaborative purification device for flue gas pollutants, which comprises a flue, fresh air adding equipment, solid adsorbing material adding equipment, a bag type dust collector and an induced draft fan, and particularly comprises an air storage tank 5 and a bag type dust collector 11 as shown in figure 1, wherein one end of the bag type dust collector 11 is connected with a flue gas pipeline 3, the flue gas pipeline 3 is provided with an inlet of original flue gas 1 of a boiler, and the other end of the bag type dust collector is communicated with a chimney 18 through an induced draft fan 16; the flue gas pipeline 3 is communicated with a Venturi injection device 9, and the Venturi injection device 9 is connected with an adsorbent bin 7 through a disc feeder 8; a dust collector pulse blowing device 10 is arranged above the bag type dust collector 11, an adsorbent waste bin 14 is arranged at the bottom of the bag type dust collector 11, and an electric tracing 13 is arranged in the bag type dust collector 11; one end of the gas storage tank 5 is connected with an air compressor 4, the other end is connected with a cold dryer 6, and the cold dryer 6 is respectively communicated with a Venturi injection device 9 and a dust remover pulse injection device 10 through pipelines.
It is further preferred that a dust rapping device 12 is installed in the bag-type dust collector 11. And one end of the adsorbent waste bin 14 is communicated with one end of the flue gas pipeline 3 close to the bag type dust collector 11, and the other end of the adsorbent waste bin 14 is connected with a waste collecting device 15. The flue gas pipeline 3 is provided with a flowmeter 2. The adsorbent in the adsorbent bin 7 is a solid adsorption material, and the solid adsorption material is a mixture of one or more materials such as porous activated carbon-based materials, activated silicon, diatomite, activated glue, molecular sieves, zeolite, fly ash, carbide slag, steel slag or red mud, or the materials are modified by seawater and alkali, or the seawater and alkali are modified jointly.
The invention also provides a reactive type collaborative purification method for flue gas pollutants, which comprises the following steps that firstly, original flue gas 1 of a boiler enters a flue from an air inlet, the flow rate of the flue gas in the process can be measured by a flowmeter 2, the temperature of the flue gas and the pressure of a flue gas pipeline can be measured by an imported pressure gauge and a thermometer, meanwhile, an air compressor 4 compresses air into an air storage tank 5 for storing the air, and the air is dried by a cooling dryer 6 to obtain anhydrous and oilless compressed air, wherein the compressed air is divided into two paths: one path of compressed air is used for continuously injecting a solid adsorbent into the flue gas pipeline 3 through the Venturi injection device 9, the solid adsorbent is a solid adsorption material, and is injected into the flue gas pipeline 3 together to be uniformly mixed under the action of the compressed air, and simultaneously, the solid adsorbent and the original flue gas 1 of the boiler generate fluidized bed chemical reaction in the flue gas pipeline 3 correspondingly; the other path of compressed air is used for a dust collector pulse injection device 10 of a dust collector, when pulse injection is carried out, the ash removal airflow enables the pressure in a filter bag to rise, the filter bag expands outwards, when the wall of the filter bag expands to a limit position, the filter bag is subjected to impact vibration by tension, and reverse acceleration is obtained so as to start inward contraction; therefore, the dust layer attached to the surface of the filter bag is not pulled off from the filter bag under the action of tension, and the effect of flue gas purification is realized after the strong adsorption performance of the solid adsorbent and the high-efficiency dust removal effect of bag type dust removal.
Specifically, the solid adsorbent is uniformly mixed by a disk feeder 8 from an adsorbent bin 7 and then enters a venturi injection device 9, the solid adsorbent smoothly enters a flue gas pipeline 3 under the drive of compressed air, and simultaneously, under the action of an induced draft fan 16, a negative pressure environment is formed in the flue gas pipeline 3, so that flue gas, air and solid adsorbent materials enter a bag type dust collector together from the lower part of the bag type dust collector 11 and are attached to the wall of a filter bag of the bag type dust collector 11, and further adsorption reaction is carried out on the flue gas and the flue gas, during the period, an electric heat tracing 13 at the bottom of the dust collector needs to be started in time, and the phenomenon that the flue gas is condensed and blocks a corrosion cloth bag due to too low temperature after the flue gas enters the dust collector is avoided. In the bag type dust collector 11, the volume of the heated flue gas expands, a part of rough dust and powder slag falls into the ash bucket due to inertia or natural sedimentation, and other reasons, most of the rest flue gas particles and solid adsorbent rise along with the flue gas flow and enter the filter bag, after the solid adsorbent on the wall of the filter bag purifies and removes dust, the particles are retained outside the filter bag, the purified clean flue gas 17 enters the upper box body from the inside of the filter bag, then is discharged from the valve plate hole and the air outlet, and enters the chimney 18 through the induced draft fan 16 to be discharged, so that the flue gas purification effect is achieved, and the purification effect is shown in the flue gas purification effect in table 1. When the concentration of each index in the flue gas is not changed, stopping feeding, simultaneously closing a boiler flue gas inlet, an inlet valve and a draught fan 16, starting a dust removal vibrator 12 and a dust remover pulse injection device 10, removing ash, collecting ash samples, and closing the whole equipment.
TABLE 1 flue gas cleaning Effect
The dosage of the multi-element composite adsorption reactant is 2g/Nm3And the temperature of the flue gas is 120 ℃.
The invention takes the bag type dust collector as a reactor, realizes the purpose of purifying the flue gas by utilizing the dust removal performance of the bag type dust collector and the adsorption performance of the solid adsorption material, and simultaneously removes organic matters, heavy metals and other harmful substances in the flue gas by adopting different adsorption materials; the bag type dust collector is divided into a round bag type dust collector and a flat bag type dust collector according to the shape of a filter bag, and can be divided into an inner filter type dust collector and an outer filter type dust collector according to the filtering direction; the bag-type dust collector filter material adopts a chemical fiber cloth bag filter material which is a coating film or a modified filter material such as polypropylene, acrylonitrile homopolymer, polyester, glass needled felt, polyphenylene sulfide, MATAMEX Metatas, P84, polytetrafluoroethylene fiber, nylon and the like.
The air is provided with an air storage tank before entering the flue. The air storage tank may be derived from air provided by an air station, an air pressure station within a power plant, a laboratory-used high pressure cylinder, or the like. The air source is wide, so the air purifier is suitable for various devices. The temperature of the flue gas is between 80 and 300 ℃.
An adsorbent spraying area is arranged between the flue and the bag type dust collector. Unclosed baffles are arranged between the adsorbent injection area and the flue and between the adsorbent injection area and the bag type dust collector, so that the pipeline can be supported, and the control of the airflow direction of flue gas is facilitated. The flue gas in the pipeline and the solid adsorbing material are subjected to corresponding fluidized bed chemical reaction between the adsorbing agent spraying area and the bag type dust collector, so that the efficiency of removing various harmful substances such as sulfide, nitric oxide and the like in the flue gas can be further improved.
The invention adopts a pulse blowing ash removal mode, during pulse blowing, the other path of compressed air in the air storage tank is adopted as ash removal air flow, the ash removal air flow enables the pressure in the filter bag to rise rapidly, the filter bag expands outwards rapidly, when the bag wall expands to a limit position, the bag wall is subjected to strong impact vibration by large tension, and the bag wall obtains the maximum reverse acceleration so as to start to contract inwards; so that the dust layer attached to the surface of the filter bag is not pulled off from the filter bag under the action of tension.
The spraying adsorbent in the spraying area is a solid adsorption material, the solid adsorption material adopted by the invention is a mixture of one or more materials such as porous active carbon-based material (active carbon, active coke, active carbon fiber and the like), active silicon-based material (active silicon, molecular sieve, diatomite and the like), active glue, zeolite, fly ash, carbide slag, steel slag, red mud and the like, or the materials are modified by seawater and alkali, or the seawater and alkali combined modification and load modification.
The principle and the implementation mode of the invention are explained by applying a specific example, and the description of the embodiment is only used for helping to understand the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the invention.
Claims (7)
1. A reactive type cooperative purification method for smoke pollutants is characterized in that: the method comprises the following steps:
step one; the original flue gas of the boiler enters a flue gas pipeline from an air inlet; meanwhile, the air compressor compresses air into an air storage tank, and the air is dried by a cold dryer to obtain compressed air;
step two; the solid adsorbent enters the Venturi injection device from the adsorbent bin through the disk feeder;
step three; the compressed air in the step one is divided into two paths, wherein one path of compressed air is used for continuously injecting the solid adsorbent into the flue gas pipeline through the Venturi injection device; the other path of compressed air is used for pulse injection of a dust remover;
step four; starting an induced draft fan, forming a negative pressure environment in a flue gas pipeline under the action of the induced draft fan, enabling flue gas, air and a solid adsorbent to enter a bag type dust collector from the lower part of the bag type dust collector together, and starting electric tracing at the bottom of the dust collector;
step five; in the bag type dust collector, the volume of the heated smoke expands, a part of dust and powder slag with large volume falls into a dust hopper under the action of inertia or natural sedimentation and the like, the rest smoke particles and solid adsorbents ascend with the smoke airflow and enter a cloth bag, the particles are retained outside the cloth bag after the solid adsorbents in the cloth bag and the bag type dust collector are cooperatively purified, and the purified smoke enters an upper box body from the inside of the cloth bag, is discharged from an air outlet and is led out by an induced draft fan to enter a chimney; when the concentration of each index in the flue gas is unchanged, stopping feeding, closing the flue gas inlet and the induced draft fan, starting the dust remover to perform pulse blowing by utilizing one path of compressed air, starting dust removal vibration, performing dust removal, collecting ash samples, and closing the whole equipment.
2. The reactive type cooperative purification method for flue gas pollutants according to claim 1, characterized in that in the fifth step, the bag type dust collector adopts a pulse blowing ash removal mode, during pulse blowing, the ash removal airflow raises the pressure in the filter bag, the filter bag expands outwards, when the wall of the filter bag expands to a limit position, the filter bag is subjected to impact vibration by tension, and obtains reverse acceleration so as to start to contract inwards; so that the dust layer attached to the surface of the filter bag is not pulled off from the filter bag under the action of tension.
3. The reactive collaborative purification method for flue gas pollutants according to claim 1, characterized in that: the bag type dust collector adopts a round bag type dust collector or a flat bag type dust collector according to the shape of a filter bag; the bag type dust collector adopts an inner filter type dust collector or an outer filter type dust collector according to the filtering direction of the filter bag; the filter bag of the bag type dust collector adopts a chemical fiber cloth bag filter material which is a film-coated modified filter material such as polypropylene, acrylonitrile homopolymer, polyester, glass needled felt, polyphenylene sulfide, MATAMEX Meitas, P84, polytetrafluoroethylene fiber or nylon and the like.
4. The reactive collaborative purification method for flue gas pollutants according to claim 1, characterized in that: the temperature of the flue gas is between 80 and 300 ℃.
5. The reactive collaborative purification method for flue gas pollutants according to claim 1, characterized in that: the solid adsorbent in the adsorbent bin is a solid adsorbent material, and the solid adsorbent material is a mixture of one or more materials such as porous activated carbon-based materials, activated silicon, diatomite, activated glue, molecular sieves, zeolite, fly ash, carbide slag, steel slag or red mud, or the materials are modified by seawater and alkali in a combined manner.
6. The reactive type cooperative purification device for the smoke pollutants, which is adopted by the reactive type cooperative purification method for the smoke pollutants according to any one of claims 1 to 5, is characterized in that: the device comprises an air storage tank and a bag type dust collector, wherein one end of the bag type dust collector is connected with a flue gas pipeline, and the other end of the bag type dust collector is communicated with a chimney through an induced draft fan; the flue gas pipeline is communicated with a Venturi injection device, and the Venturi injection device is connected with an adsorbent bin through a disc feeder; a dust remover pulse injection device is installed above the bag type dust remover, an adsorbent waste bin is arranged at the bottom of the bag type dust remover, and electric tracing is installed in the bag type dust remover; one end of the air storage tank is connected with an air compressor, the other end of the air storage tank is connected with a cold dryer, and the cold dryer is respectively communicated with the Venturi injection device and the dust remover pulse injection device through pipelines; and the flue gas pipeline is provided with a flowmeter.
7. The reactive collaborative purification device for flue gas pollutants according to claim 6, characterized in that: adsorbent waste bin one end with the flue gas pipeline is close to the one end intercommunication of bag collector, the adsorbent waste bin other end is connected with garbage collection device.
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