CN112426863A - Dry-method double-cloth-bag flue gas purification integrated device for cooperatively treating various pollutants - Google Patents
Dry-method double-cloth-bag flue gas purification integrated device for cooperatively treating various pollutants Download PDFInfo
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- CN112426863A CN112426863A CN202011448588.9A CN202011448588A CN112426863A CN 112426863 A CN112426863 A CN 112426863A CN 202011448588 A CN202011448588 A CN 202011448588A CN 112426863 A CN112426863 A CN 112426863A
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- 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
- B01D53/75—Multi-step processes
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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
- B01D46/56—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition
- B01D46/62—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition connected in series
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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
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/38—Removing components of undefined structure
- B01D53/40—Acidic components
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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
- B01D53/34—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
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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
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
- B01D53/8621—Removing nitrogen compounds
- B01D53/8625—Nitrogen oxides
- B01D53/8631—Processes characterised by a specific device
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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
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
- B01D53/8621—Removing nitrogen compounds
- B01D53/8634—Ammonia
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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
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
- B01D53/8668—Removing organic compounds not provided for in B01D53/8603 - B01D53/8665
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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
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Abstract
The invention discloses a dry-method double-cloth-bag flue gas purification integrated device for cooperatively treating various pollutants, which sequentially comprises a primary dry-method deacidification tower, a primary filter bag dust remover, a secondary dry-method deacidification tower, a secondary filter bag dust remover, a low-temperature SCR device, an induced draft fan and a chimney along the flue gas passing direction, wherein the inlet and outlet sides of the primary dry-method deacidification tower and the secondary dry-method deacidification tower are respectively connected with a first feeding device for providing sodium bicarbonate, the outlet flue of the primary filter bag dust remover is connected with a second feeding device for spraying activated carbon powder and fly ash, and the inlet and outlet sides of the secondary filter bag dust remover and the low-temperature SCR device are respectively connected with an ammonia water spraying device and a. The efficient desulfurization, denitration, dioxin, heavy metal and particulate matter removal effects are realized, the system does not consume water and waste water, the corrosion of the flue gas condensation on system equipment and the bag pasting risk of a dust remover are reduced, white pollution cannot be generated when the flue gas is discharged, and the aims of energy conservation and emission reduction are integrally realized.
Description
Technical Field
The invention belongs to the field of environmental protection equipment, and particularly relates to a dry-method double-cloth-bag flue gas purification integrated device for cooperatively treating various pollutants, which is used for treating solid waste/hazardous waste incineration flue gas.
Background
Pollutants in solid waste incineration flue gas can be divided into four categories, namely particulate matters (dust), acid gases (HCl, SOx, NOx, HF and the like), heavy metals (Hg, Pb, Cr and the like) and organic highly toxic pollutants (dioxin, furan and the like), and in order to prevent secondary pollution to the environment caused by the incineration process, the pollutants need to be purified.
Conventional technologies for treating acid gas NOx are mainly SCR and SNCR. Due to the limitation of reaction temperature and ammonia leakage rate, the denitration efficiency of the SNCR is generally 30-50%, and the denitration efficiency of the SCR is technically obviously higher than that of the SNCR. Furthermore, SNCR techniques generally fail to achieve sufficiently low NOx and NH simultaneously3And therefore has certain disadvantages over SCR technology.
For other acid gases (such as SOx, HCl, HF, etc.), conventional wet deacidification is very easy to cause equipment corrosion and also causes repeated changes in flue gas temperature; obvious white pollution is generated, and heating is needed if the white pollution is to be eliminated, so that energy loss is easily caused.
For dioxin, the activated carbon technology is generally adopted internationally for treatment. The whole difficulty of active carbon technology is lower, and the popularity is high, nevertheless has certain limitation: firstly, the discharge of dioxin is unstable, the concentration of dioxin is difficult to be effectively predicted, and the usage amount of activated carbon cannot be accurately predicted during injection. When the device is not used, the injection quantity is reduced or stopped, the dioxin exceeds the standard, and the emission control is not strict enough. Secondly, the essence of the active carbon technology is that dioxin is adsorbed to solids from waste gas, so that the transfer of pollutants is realized, but the dioxin is not eliminated fundamentally, and secondary pollution is easily caused. At present, the technology of dioxin on-line monitoring equipment at home and abroad is not mature enough, and the dioxin cannot be effectively detected on line in real time, so that the emission cannot be normally controlled.
In conclusion, the whole process of the existing flue gas purification treatment process is longer, so that the flow resistance of the flue gas is increased, and the control of indexes is seriously lagged.
Disclosure of Invention
The embodiment of the invention provides a dry-method double-cloth-bag flue gas purification integrated device for cooperatively treating various pollutants, and aims to solve the problems that the overall process of a flue gas purification treatment process is longer, the flow resistance of flue gas is increased, and the control of indexes is seriously lagged in the related art.
According to the embodiment of the invention, the dry-method double-cloth-bag flue gas purification integrated device for cooperatively treating multiple pollutants is provided, and sequentially comprises a primary dry-method deacidification tower, a primary filter-bag dust remover, a secondary dry-method deacidification tower, a secondary filter-bag dust remover, a low-temperature SCR device, an induced draft fan and a chimney along the flue gas passing direction, wherein a first feeding device for providing sodium bicarbonate is connected to the inlet side and the outlet side of the primary dry-method deacidification tower and the secondary dry-method deacidification tower, a second feeding device for spraying activated carbon powder and fly ash is connected to the outlet flue of the primary filter-bag dust remover, and an ammonia water spraying device and a steam spraying device are connected to the inlet side and the outlet side of the secondary.
Further, the flue gas is generated by burning solid waste/dangerous waste and is discharged from an outlet of a waste heat boiler economizer, and the temperature of the flue gas is 230-250 ℃.
Further, the particle size of the baking soda is as follows: 700 to 800 meshes.
Furthermore, the primary filter bag dust collector adopts a dioxin removal catalytic filter bag for removing gaseous dioxin and particulate matters; the two-stage filter bag dust remover adopts a low-temperature denitration catalytic filter bag and is used for simultaneously removing particulate matters, NOx and NH in smoke3A contaminant-like substance.
Further, the secondary dry-method deacidification tower is of a U-shaped flue structure and is arranged between the primary filter bag dust remover and the secondary filter bag dust remover; in order to prolong the contact and reaction time of the flue gas and the baking soda, a rotating dial wheel is arranged at the bottom of the U-shaped flue, so that fly ash and deacidification agents are prevented from being accumulated at the turning position of the bottom of the flue.
Furthermore, a mixture of active carbon and fly ash is sprayed into the U-shaped flue to reduce the temperature of the inlet flue gas to 180-200 ℃, and the residual dioxin, particulate matters and heavy metals in the flue gas after the flue gas passes through the primary filter bag dust collector are absorbed.
Further, the mass ratio of the activated carbon to the fly ash is (1:4) - (1: 5).
Further, the particle size of the activated carbon is 200-230 meshes; the fly ash is collected from the primary filter bag dust collector.
Furthermore, the ammonia water injection device and the steam injection device can adjust the flue gas temperature at the inlet of the secondary filter bag dust collector and stabilize the temperature at 210-220 ℃.
Furthermore, the secondary filter bag dust collector and the low-temperature SCR device adopt ammonia water as a reducing agent, and the ammonia water is heated and evaporated by steam and diluted by dilution air and then is sprayed into flue gas by an ammonia water spraying device.
According to the technical scheme, compared with the prior art, the invention has the beneficial effects that:
(1) according to the dry-method double-bag flue gas purification integrated device disclosed by the embodiment of the invention, flue gas sequentially passes through a primary dry-method deacidification tower, a primary filter bag dust remover, a secondary dry-method deacidification tower, a secondary filter bag dust remover, a low-temperature SCR device, an induced draft fan and a chimney. The whole system has simple and reliable flow and low operation requirement; dust is intercepted, the emission is ultra-low, and the secondary pollution is reduced; meanwhile, the whole system is easy to control the smoke temperature, meets the requirement of white elimination and reduces the energy consumption.
(2) According to the dry-method double-cloth-bag flue gas purification integrated device disclosed by the embodiment of the invention, the primary deacidification tower and the secondary deacidification tower adopt dry processes, so that the complexity and the danger of flue gas washing are eliminated; no water consumption and no waste water, low equipment corrosion and long service life.
(3) According to the dry-method double-cloth-bag flue gas purification integrated device disclosed by the embodiment of the invention, the dioxin catalysis filter bag is adopted at the first stage, so that the gaseous dioxin pollutants are destroyed and decomposed, the dioxin is automatically converted into non-toxic and harmless substances such as carbon dioxide, water and the like, the corrosivity of the filter bag is reduced, and the service life of the filter bag is prolonged; the two-stage adopts a catalytic denitration filter bag, and can simultaneously realize low enough NOx and NH3The emission of the system is more economical than the investment cost of an SCR system with the same treatment effect; particles can be trapped simultaneously, so that the system resistance is reduced, and the energy consumption of the fan is reduced.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention, illustrate embodiments of the invention and together with the description serve to explain the invention and are not to limit the invention. In the drawings:
fig. 1 is a schematic diagram of a dry-method dual-cloth-bag flue gas purification integrated device for cooperatively treating multiple pollutants according to an embodiment of the present invention;
in the figure: 1. flue gas; 2. a first feeding device; 3. a first-stage dry deacidification tower; 4. a primary filter bag dust remover; 5. a second feeding device; 6. a secondary dry deacidification tower; 7. a steam grid; 8. an ammonia water grid; 9. a second-stage filter bag dust remover; 10. a low temperature SCR device; 11. an induced draft fan; 12. and (4) a chimney.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
As shown in fig. 1, an embodiment of the present invention provides a dry-process double-bag flue gas purification integrated device for cooperatively treating multiple pollutants, which sequentially includes a primary dry-process deacidification tower 3, a primary filter bag dust remover 4, a secondary dry-process deacidification tower 6, a secondary filter bag dust remover 9, a low-temperature SCR device 10, an induced draft fan 11 and a chimney 12 along a flow direction of flue gas 1, wherein a first feeding device 2 for providing baking soda is connected to a side where the primary dry-process deacidification tower 3 and the secondary deacidification tower 6 enter and exit, a second feeding device 5 for injecting activated carbon powder and fly ash is connected to a flue at an outlet of the primary filter bag dust remover 4, and an ammonia injection device 8 and a steam injection device 7 are connected to a side where the secondary filter bag dust remover 6 and the low-temperature SCR device 10 enter.
The flue gas of the embodiment of the invention sequentially passes through the primary dry-method deacidification tower, the primary filter-bag dust remover, the secondary dry-method deacidification tower, the secondary filter-bag dust remover, the low-temperature SCR device, the induced draft fan and the chimney, the whole system flow is simple and reliable, the operation requirement is low, and the flow resistance of the flue gas is greatly reduced; dust is intercepted, the emission is ultra-low, and the secondary pollution is reduced; meanwhile, the whole system is easy to control the smoke temperature, meets the requirement of white elimination and reduces the energy consumption. The first-stage deacidification tower and the second-stage deacidification tower adopt dry processes, so that the complexity and the danger of flue gas washing are eliminated; no water consumption and no waste water, low equipment corrosion and long service life. The first stage adopts a dioxin catalysis filter bag to destroy and decompose gaseous dioxin pollutants, and automatically converts the dioxin into nontoxic and harmless substances such as carbon dioxide, water and the like, so that the corrosivity of the filter bag is reduced, and the service life of the filter bag is prolonged; the two-stage adopts a catalytic denitration filter bag, and can simultaneously realize low enough NOx and NH3The emission of the system is more economical than the investment cost of an SCR system with the same treatment effect; particles can be trapped simultaneously, so that the system resistance is reduced, and the energy consumption of the fan is reduced.
In this embodiment, first feeder can include baking soda powder storage bin, sets up 1 discharge gate under the storehouse, and the storehouse body sets up 3 points weighing module metering device, and the feed quantity of control baking soda is adjusted through frequency conversion star type batcher to the back. In order to ensure that absorbent powder at the discharge port of the baking soda bin is uniformly fluidized and discharged smoothly without silt and blockage, a fluidizing device such as a gasification plate is arranged at the conical hopper part of the inner wall, and a fluidizing wind power heater is arranged to ensure that the temperature of fluidizing wind is not lower than 25 ℃.
In this embodiment, the second feeding device may include an activated carbon storage bin and a fly ash storage bin, the activated carbon storage bin and the fly ash storage bin are weighed by the 3-pivot weighing module, the mixing amount of the activated carbon and the fly ash entering the flue is adjusted by the weighing module PID, and the compressed air is pneumatically conveyed to the inlet flue of the lower-level purification equipment.
In the embodiment, on one hand, the ammonia water injection device and the steam injection device can adjust the flue gas temperature at the inlet of the secondary filter bag dust collector and stabilize the temperature at 210-220 ℃; on the other hand, the reaction temperature of the low-temperature SCR denitration device is met; simultaneously, the ammonia water serving as a denitration agent is in a steam form, so that the contact area between the ammonia water and the flue gas is increased, and the denitration efficiency is integrally improved.
In this embodiment, the flue gas 1 is discharged from an outlet of an economizer of a waste heat boiler. And cooling the flue gas generated by burning the solid waste/hazardous waste to 230-250 ℃ through a low-temperature economizer of a waste heat boiler. And the flue gas 1 at the outlet of the economizer of the waste heat boiler enters a primary dry-method deacidification tower 3.
In the present example, the particle size of the baking soda is: 700 to 800 meshes. And (3) injecting the baking soda 2 with the particle size of 700-800 meshes into the primary dry deacidification tower 3 and the secondary dry deacidification tower 6, so that acidic pollutants in the flue gas are violently reacted with the baking soda to be largely removed. The deacidification system adopts a dry process, does not consume water or waste water, and has weak equipment corrosivity, long service life and low maintenance cost; while eliminating the complexity and danger of flue gas scrubbing.
In this embodiment, the flue gas at the outlet of the primary dry-method deacidification tower 3 enters a primary filter bag dust collector 4. The first stage adopts a dioxin catalysis filter bag to destroy and decompose gaseous dioxin pollutants, and automatically converts the dioxin into nontoxic and harmless substances such as carbon dioxide, water and the like, so that the corrosivity of the filter bag is reduced, and the service life of the filter bag is prolonged; and the targets of dust interception and ultralow emission can be synchronously realized.
In this embodiment, the secondary dry-process deacidification tower 6 is of a U-shaped flue structure and is arranged between the primary filter bag dust remover and the secondary filter bag dust remover, so that the equipment occupation can be saved, the flow of the whole system tends to be simple, the resistance of the smoke flowing process is reduced, and the energy consumption of a fan is reduced.
In this embodiment, activated carbon powder with a particle size of 200 to 230 meshes is mixed with fly ash collected in a first-stage filter bag in a ratio of (1:4) to (1:5) (preferably 1:5), and then the mixture 5 is sprayed into a second-stage dry-method deacidification tower 6 located between two-stage filter bag dust collectors, so that the optimal adsorption of the residual dioxin and heavy metals in the flue gas is realized at a temperature of 180 to 200 ℃. The fly ash is mixed into the activated carbon powder, so that on one hand, the temperature of the flue gas at the outlet of the primary filter bag dust collector can be regulated, the flue gas is stabilized in the optimum working temperature range of activated carbon adsorption, and the high-efficiency dioxin removal is realized; on the other hand, the effective utilization of the system fly ash is realized, and the secondary pollution is reduced.
In the embodiment, the flue gas at the outlet of the secondary dry-method deacidification tower 6 enters a secondary filter bag dust remover 9, and ammonia water is heated and evaporated by steam 7 and diluted by dilution air and then is sprayed into the flue gas by an ammonia spraying grid 8. The two-stage adopts a catalytic denitration filter bag, and can simultaneously realize low enough NOx and NH3The emission of the system is more economical than the investment cost of an SCR system with the same treatment effect; and particles can be trapped simultaneously, so that the system resistance is reduced, and the energy consumption of the fan is reduced.
In this embodiment, a low-temperature SCR device 10 is added behind the secondary filter bag dust collector 9 to remove nitrogen oxides such as residual NOx in flue gas and ensure ultralow emission of nitrogen oxides. The SCR device is added to easily control the smoke temperature, meet the requirement of 'white elimination' of smoke and reduce the energy consumption of the system.
In this embodiment, the flue gas passes through the low-temperature SCR device 10 and is discharged from the chimney 12.
The dry-method double-cloth-bag flue gas purification integrated device for cooperatively treating various pollutants is combined, and a test is carried out on site, wherein the specific treatment results are as follows:
after low-temperature SCR, the discharged flue gas 12 is monitored on line to find SO2The removal rate is 90-96%, the total removal rate of HCl is 95-99%, the removal rate of NOx is 90-95%, and the dust emission is less than 10mg/Nm3Content of dioxin<0.1ng TEQ/Nm3And all indexes completely meet corresponding emission standards.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides a deal with two sack gas cleaning integrated device of dry process of multiple pollutant in coordination, its characterized in that includes one-level dry process deacidification tower, one-level bag dust remover, second grade dry process deacidification tower, second grade bag dust remover, low temperature SCR device, draught fan and chimney in proper order along the flue gas through the direction, the other first feeder who is used for providing the baking soda that all is connected with of discrepancy of one-level dry process deacidification tower and second grade dry process deacidification tower, be connected with the second feeder who is used for spouting active carbon powder and flying dust on the one-level bag dust remover export flue, second grade bag dust remover and low temperature SCR device come in and go out the other ammonia water jet device and steam jet device that all is connected with.
2. The integrated dry-method double-cloth-bag flue gas purification device for cooperatively treating multiple pollutants according to claim 1, wherein the flue gas is generated by burning solid waste/hazardous waste and is discharged from an outlet of a waste heat boiler economizer, and the smoke temperature is 230-250 ℃.
3. The integrated dry method double cloth bag flue gas purification device for the cooperative treatment of multiple pollutants according to claim 1, wherein the particle size of the baking soda is as follows: 700 to 800 meshes.
4. The integrated dry-process double-cloth-bag flue gas purification device for cooperative treatment of multiple pollutants as claimed in claim 1, wherein the primary filter bag dust remover adopts a dioxin-removing catalytic filter bag; the secondary filter bag dust remover adopts a low-temperature denitration catalysis filter bag.
5. The integrated dry-process double-bag flue gas purification device for co-processing multiple pollutants according to claim 1, wherein the secondary dry-process deacidification tower is of a U-shaped flue structure and is arranged between the primary filter-bag dust remover and the secondary filter-bag dust remover.
6. The integrated dry-method double-cloth-bag flue gas purification device for cooperatively treating multiple pollutants according to claim 5, wherein a mixture of activated carbon and fly ash is sprayed into the U-shaped flue so as to reduce the temperature of inlet flue gas to 180-200 ℃ and absorb dioxin, particles and heavy metals remaining in the flue gas after passing through the primary filter bag dust collector.
7. The integrated dry-process double-cloth-bag flue gas purification device for co-processing multiple pollutants according to claim 1, wherein the mass ratio of the activated carbon to the fly ash is (1:4) - (1: 5).
8. The integrated dry-method double-cloth-bag flue gas purification device for cooperative treatment of multiple pollutants according to claim 1, wherein the particle size of the activated carbon is 200-230 meshes; the fly ash is collected from the primary filter bag dust collector.
9. The integrated dry-method double-cloth-bag flue gas purification device for cooperatively treating multiple pollutants according to claim 1, wherein the ammonia water injection device and the steam injection device can adjust the flue gas temperature at the inlet of the secondary filter bag dust collector and stabilize the temperature at 210-220 ℃.
10. The integrated dry-process double-cloth-bag flue gas purification device for co-processing multiple pollutants according to claim 1, wherein the secondary filter bag dust remover and the low-temperature SCR device use ammonia water as a reducing agent, and the ammonia water is heated by steam for evaporation and diluted by dilution air and then is sprayed into flue gas by an ammonia water spraying device.
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| CN202011448588.9A CN112426863A (en) | 2020-12-09 | 2020-12-09 | Dry-method double-cloth-bag flue gas purification integrated device for cooperatively treating various pollutants |
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| CN202011448588.9A CN112426863A (en) | 2020-12-09 | 2020-12-09 | Dry-method double-cloth-bag flue gas purification integrated device for cooperatively treating various pollutants |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113776061A (en) * | 2021-09-22 | 2021-12-10 | 北京京城环保股份有限公司 | Hazardous waste incineration flue gas purification and waste heat recovery device and method thereof |
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2020
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113776061A (en) * | 2021-09-22 | 2021-12-10 | 北京京城环保股份有限公司 | Hazardous waste incineration flue gas purification and waste heat recovery device and method thereof |
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