CN115582381B - Gas purifying device and process - Google Patents
Gas purifying device and process Download PDFInfo
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- CN115582381B CN115582381B CN202211258011.0A CN202211258011A CN115582381B CN 115582381 B CN115582381 B CN 115582381B CN 202211258011 A CN202211258011 A CN 202211258011A CN 115582381 B CN115582381 B CN 115582381B
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- gas
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- removal tower
- charging
- collecting cover
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- 238000000034 method Methods 0.000 title claims description 8
- 230000008569 process Effects 0.000 title claims description 8
- 239000007789 gas Substances 0.000 claims abstract description 45
- 239000003344 environmental pollutant Substances 0.000 claims abstract description 37
- 231100000719 pollutant Toxicity 0.000 claims abstract description 34
- 230000008878 coupling Effects 0.000 claims abstract description 31
- 238000010168 coupling process Methods 0.000 claims abstract description 31
- 238000005859 coupling reaction Methods 0.000 claims abstract description 31
- 238000004140 cleaning Methods 0.000 claims abstract description 26
- 238000005507 spraying Methods 0.000 claims abstract description 22
- 239000000428 dust Substances 0.000 claims abstract description 15
- 239000007788 liquid Substances 0.000 claims abstract description 14
- 239000007921 spray Substances 0.000 claims abstract description 9
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 5
- 239000003546 flue gas Substances 0.000 claims abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 27
- 238000001914 filtration Methods 0.000 claims description 18
- 238000004519 manufacturing process Methods 0.000 claims description 9
- 239000002351 wastewater Substances 0.000 claims 2
- 239000012535 impurity Substances 0.000 claims 1
- 238000000746 purification Methods 0.000 abstract description 6
- 208000028659 discharge Diseases 0.000 description 18
- 230000000694 effects Effects 0.000 description 10
- 239000002245 particle Substances 0.000 description 8
- 239000003595 mist Substances 0.000 description 5
- 230000008859 change Effects 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 238000009826 distribution Methods 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 238000004088 simulation Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 230000008021 deposition Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000005202 decontamination Methods 0.000 description 1
- 230000003588 decontaminative effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- -1 fe 2O3 Inorganic materials 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- NDLPOXTZKUMGOV-UHFFFAOYSA-N oxo(oxoferriooxy)iron hydrate Chemical compound O.O=[Fe]O[Fe]=O NDLPOXTZKUMGOV-UHFFFAOYSA-N 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B15/00—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area
- B08B15/02—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area using chambers or hoods covering the area
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
- B03C3/017—Combinations of electrostatic separation with other processes, not otherwise provided for
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
- B03C3/34—Constructional details or accessories or operation thereof
Landscapes
- Electrostatic Separation (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention relates to a gas purification device, which comprises a collecting cover, a multi-force coupling removal tower, an intelligent control system and the like, wherein an air inlet groove is formed in the lower part of the collecting cover, an outlet pipeline is arranged in the upper part of the collecting cover, a charging device, a spraying device and a liquid drop collecting device are arranged in the outlet pipeline, the charging device is arranged in a cavity on the wall of the outlet pipeline, the spraying device is arranged on the upper part of the charging device, the collecting device is arranged in the lower part of the spraying device, and flue gas subjected to charging and spraying pretreatment enters the multi-force coupling removal tower; the device is characterized in that a cleaning nozzle and a multi-force coupling pollutant removal device are arranged in the removal tower, the cleaning nozzle is positioned at the upper part of the removal tower, the multi-force coupling pollutant removal device is positioned at the lower part of the cleaning nozzle, and the device comprises a plurality of baffle plates which are arranged at intervals and discharge electrodes arranged between adjacent baffle plates. The collecting cover has the charge and spray pretreatment function, and can realize the efficient removal of pollutants such as dust/fog by combining the rear-end multi-force coupling removal tower.
Description
Technical Field
The invention relates to a gas purifying device, belongs to the technical field of gas dust removal, and particularly relates to a gas purifying device and a process for removing multiple pollutants such as dust/fog and the like.
Background
A large amount of non-tissue pollutants are often generated in the production process of steel and the like. Taking the rolling production process in the steel industry as an example, various pollutants, namely, fallen ferric oxide powder, cooling water vapor and lubricating oil mist, can be produced in the production, and the particles with the particle size of about 3-20 mu m can float in a workshop for a long time, so that a large amount of harmful smoke dust is formed. The main components of the flue gas include FeO, fe 2O3、H2 O, oil mist and the like. In addition, in the high-temperature rolling process, the air on the surface of the steel is heated and rises, and moves together with dust; meanwhile, the water vapor generated in the cooling process is also outwards diffused under the action of still flow, so that smoke dust is emitted to the whole workshop, not only is strong visual pollution brought, but also heat exchange of production equipment and electric elements of corrosion equipment are influenced due to deposition blockage, and meanwhile, the physical health of operators is also influenced to a certain extent.
At present, the technology of centralized treatment after collection is mainly adopted for removing multi-pollutants generated in the production process, but the actual operation is affected by unreasonable design and arrangement of a collection cover, and the defects of low collection precision, extensive treatment, high operation energy consumption and the like are commonly existed, so that the treatment effect on the multi-pollutants generated in the production process is seriously affected.
Disclosure of Invention
In order to solve the problems, the invention provides a gas purifying device for efficiently removing multiple pollutants such as dust/fog and the like, which comprises a collecting cover, a multi-force coupling removing tower, an intelligent control system and the like. And after the gas pollutants generated in the production process are efficiently collected and preprocessed through the collecting cover, the gas pollutants enter the multi-force coupling removal tower to be efficiently removed, and purified gas is led out by the induced draft fan.
In order to achieve the above purpose, the invention adopts the following technical scheme:
The gas purifying device comprises a collecting cover and a multi-force coupling removing tower, wherein the removing tower is connected with the collecting cover through a pipeline, an air inlet groove is formed in the lower part of the collecting cover, an outlet pipeline is formed in the upper part of the collecting cover, a charging device, a spraying device and a liquid drop collecting device are arranged in the outlet pipeline, the charging device is arranged in a cavity on the wall of the outlet pipeline, the spraying device is arranged on the upper part of the charging device, the collecting device is arranged on the lower part of the spraying device, and flue gas subjected to charging and spraying pretreatment enters the multi-force coupling removing tower; the device is characterized in that a cleaning nozzle and a multi-force coupling pollutant removal device are arranged in the removal tower, the cleaning nozzle is positioned at the upper part of the removal tower, the multi-force coupling pollutant removal device is positioned at the lower part of the cleaning nozzle, and the device comprises a plurality of baffle plates which are arranged at intervals and discharge electrodes arranged between adjacent baffle plates.
Preferably, the collecting hood has a plurality of air inlet grooves having different widths, and the width of the air inlet grooves gradually increases along the center of the air inlet grooves toward the side.
Preferably, the width of the air intake groove gradually increases more and more along the center of the air intake groove toward the side.
Preferably, the device comprises a circulating filtration water tank, the liquid drop collecting device is connected with the circulating filtration water tank, and the collected liquid drops flow into the circulating filtration water tank through a pipeline.
Preferably, the cleaning nozzle sprays water and collected liquid drops, the water is sent to a circulating filtering water tank from the bottom of the removal tower for filtering treatment, and then the water is reintroduced into the nozzle through a circulating water pump.
Preferably, the charging devices are symmetrically arranged, and the charging devices and the discharge electrodes are powered by a high-voltage power supply.
Preferably, the discharge electrode includes a baffle plate disposed between the baffles.
Preferably, temperature, humidity and pressure sensors can be installed at the inlet at the bottom of the collecting cover according to the requirement, and the frequency of the switch and the fan frequency converter of the high-voltage power supply, the circulating pump and the fan can be controlled according to the detected temperature, humidity and speed change.
Further, the charging device adopts the principle of corona discharge, and charges are generated from the cavity outside the tube wall and then enter the tube to collide with particles such as dust/fog and the like for charging.
Further, the multi-force coupling pollutant removing device consists of a baffle plate and a discharge electrode between the baffle plate and the baffle plate, wherein the discharge electrode is connected with a high-voltage power supply.
Compared with the prior art, the invention has the following advantages:
1. the collecting cover has the charge and spray pretreatment function, and can realize the efficient removal of pollutants such as dust/fog by combining the rear-end multi-force coupling removal tower;
2. The collecting cover is designed by adopting the constant pressure principle, so that the constant-speed collection of the gas in the whole collecting area can be realized, the collecting precision is improved, and the running cost is reduced;
3. The device designed by the invention is provided with an intelligent control system, can intelligently operate according to the emission of pollutants, and further reduces the operation cost.
Drawings
FIG. 1 is a schematic view of a gas cleaning device for dust/mist and other multi-pollutants according to the present invention;
FIG. 2 is a schematic view of the collection hood inlet duct width arrangement of the present invention.
The names corresponding to the serial numbers in the figures are as follows:
1. An intelligent control system; 2. a collection cover; 3. a temperature/humidity and pressure sensor; 4. a flue; 5. a droplet collection device; 6. a spraying device; 7. a charging device; 8. a multi-force coupling removal tower; 9. cleaning the nozzle; 10. a pollutant removing device is coupled with the plurality of forces; 11. #1 high voltage power supply; 12. variable frequency induced draft fan; 13. a circulating filtration water tank; 14. # 1a circulation pump; 15. #2 variable frequency circulation pump; 16. #2 high voltage power supply.
Detailed Description
The following will make additional description on the technical solution in the embodiment of the present invention with reference to the drawings in the embodiment of the present invention.
The gas purifying device comprises a collecting cover 2 and a multi-force coupling removing tower 8, wherein the removing tower 8 is connected with the collecting cover 2 through a pipeline, an air inlet groove is formed in the lower part of the collecting cover 2, an outlet pipeline is formed in the upper part of the collecting cover 2, a charging device 7, a spraying device 6 and a liquid drop collecting device 5 are arranged in the outlet pipeline, the charging device 7 is arranged in a cavity on the wall of the outlet pipeline, the spraying device 6 is arranged at the upper part of the charging device 7, the collecting device 5 is arranged at the lower part of the spraying device 6, and flue gas subjected to charging and spraying pretreatment enters the multi-force coupling removing tower 8; the cleaning nozzle 9 and the multi-force coupling pollutant removal device 10 are arranged in the removal tower, the cleaning nozzle 9 is positioned at the upper part of the removal tower, and the multi-force coupling pollutant removal device 10 is positioned at the lower part of the cleaning nozzle 9 and comprises a plurality of baffle plates which are arranged at intervals and discharge electrodes arranged between adjacent baffle plates.
Preferably, the voltage of the discharge electrode is greater than the voltage of the charging device 7.
The collecting cover has the functions of charge and spray pretreatment, gas is subjected to charge and spray pretreatment through the collecting cover, fine water mist is combined with low-power charge to carry out pretreatment, and the pretreated gas enters the removal tower to be treated through the high-power discharge electrode, so that the high-efficiency removal of pollutants such as dust/mist in the gas can be realized. The reasonable collocation of the two-stage treatment steps avoids the influence of particles on the purification effect, so that the purification effect is optimal. In contrast, it was found through extensive experimentation that the effect of contaminant removal is markedly poor if the sequence of several stages is not arranged according to the application. The sequential collocation of the several stages of the present application is therefore an inventive aspect of the present application.
The invention sets the charge and spray pretreatment function device in the collecting cover, which simplifies the structure and reduces the cost while meeting the purification effect.
Preferably, a plurality of air intake grooves having different widths are provided in the lower portion of the collecting hood 2, and the widths of the air intake grooves gradually increase in the direction from the center of the air intake groove toward the side. According to the invention, through the arrangement of the width of the air inlet groove, the collecting cover is designed by adopting the equal pressure principle, so that the constant-speed collection of the air in the whole collecting area can be realized, the collecting precision is improved, and the running cost is reduced.
Preferably, the width of the air intake groove gradually increases more and more along the center of the air intake groove toward the side. The design of the variation amplitude is also a structure optimized through a large number of experiments and numerical simulation, so that the constant-speed collection technical effect can be further realized, and the requirements of the application are more met.
The width of the air inlet groove is changed according to the following rule:
The total length of the air inlet groove is 2L, the width of the central position is W In (a) , and the W rule of the distance from the central position to the L position is as follows: w=b×w In (a) +c*W In (a) *（（L-l）/L）a, where a, b, c are coefficients, satisfying the following requirements:
1.085<a<1.103，0.992<b+c<1.010，0.496<b<0.627。
As L/L increases, a gradually increases.
0.094<a<1.101，b+c=1，0.563<b<0.575。
The optimized formula is obtained through a large number of experiments and numerical simulation, so that the gas can reach optimized distribution, the constant-speed collection technical effect can be optimally realized, and the requirements of the application are more met.
Preferably, a circulating filtration water tank 13 is included, and the circulating filtration water tank 13 is provided at the lower part of the collecting hood and the removal tower 8. The liquid drop collecting device 5 is connected with the circulating filtering water tank 13, and the collected liquid drops flow into the circulating filtering water tank through a pipeline.
Preferably, the cleaning nozzles spray water and the collected liquid, are sent from the bottom of the removal tower to a circulating filtration water tank for filtration treatment, and then reintroduced into the nozzles via a #1 circulating pump 14.
Preferably, the charging device 7 and the discharge electrode are powered by a high voltage power supply.
Preferably, the discharge electrode includes a baffle plate disposed between the baffles.
Preferably, the gas inlet of the removal tower 8 is arranged at the upper part of the removal tower 8, the gas outlet is arranged at the lower part of the removal tower 8, and the gas outlet is provided with a variable frequency induced draft fan 12 for sucking the purified gas away. The cleaning nozzle is provided at the upper part of the removal tower 8 and at the upper part of the gas inlet. Through setting up cleaning nozzle and gas inlet in upper portion for gas and spray liquid one direction motion, along the downward direction contact discharge electrode simultaneously when mixing with water, can improve purifying effect.
Preferably, the voltage of the discharge electrode is gradually increased along the flow direction of the gas in the stripping column 8 (e.g., the top-down direction of fig. 1). Because the amount of pollutants in the gas gradually decreases along with the flow of the gas, the voltage gradually increases through the discharge stage, so that the decontamination capability in the whole gas flow direction is basically the same, the countercurrent heat exchange effect similar to that of a heat exchanger is formed, and the purification capability is integrally improved through the distribution of the voltage under the condition that the overall voltage is unchanged.
It is further preferred that the voltage of the discharge electrode gradually increases in magnitude along the flow direction of the gas in the stripping column 8 (e.g., the top-down direction of fig. 1). The voltage amplitude variation is also a structure optimized through a large number of experiments and numerical simulation, the constant-speed collection technical effect can be further realized, and under the condition that the overall voltage is unchanged, the purification capability can be further integrally improved through the distribution of the voltage.
Preferably, a temperature, humidity and/or pressure sensor can be installed at the inlet at the bottom of the collecting cover according to the requirement, and the frequency of the switch and the fan frequency converter of the high-voltage power supply, the circulating pump and the fan can be controlled according to the detected temperature, humidity and speed change. Taking a pressure sensor as an example, it tests the change in the velocity of the inlet air flow at the bottom of the collection hood by measuring the change in the pressure differential. When the increase of the inlet airflow speed is detected, starting the #2 variable frequency circulating pump 15, the #1 high-voltage power supply 11 and the #2 high-voltage power supply 16 and the variable frequency induced draft fan 12 through the intelligent control system 1; as the inlet airflow speed continues to increase, the intelligent control system 1 will intelligently increase the frequency of the #2 variable frequency circulation pump 15 and the variable frequency induced draft fan 12. Through intelligent control, the system can efficiently treat pollutants and simultaneously reduce the energy consumption for system operation. In practical application, the frequency control satisfies the following relation:
the maximum design speed of the inlet airflow at the bottom of the collecting cover is V, and the maximum frequency of the corresponding pump and fan is 50Hz, so that when the inlet airflow speed is V, the frequencies of the circulating pump and the fan are:
a× (V/V) ×50, where the coefficient a satisfies: a is more than or equal to 1 and less than or equal to 1.2, and the value of a gradually becomes smaller as v increases; the maximum frequency does not exceed 50Hz.
Through the intelligent control, the system operation energy consumption can be reduced while the pollutants are efficiently treated, so that the optimization of the system is achieved.
Further, the charging device adopts the principle of corona discharge, and charges are generated from the cavity outside the tube wall and then enter the tube to collide with particles such as dust/fog and the like for charging.
Further, the multi-force coupling pollutant removing device consists of a baffle plate and a discharge electrode between the baffle plate and the baffle plate, wherein the discharge electrode is connected with a high-voltage power supply.
As can be seen from fig. 1, the sensor 3 detects the pollutant generated in the production process, and transmits the detection signal to the intelligent control system 1, the intelligent control system 1 starts the #2 variable frequency circulating pump 15, the #1 high voltage power supply 11 and the #2 high voltage power supply 16, and the variable frequency induced draft fan 12 according to the signals, and simultaneously adjusts the frequencies of the circulating pump and the induced draft fan according to the intensity of the detection signal;
The gas containing pollutants is uniformly sucked into the collecting cover 2, particles such as dust and fog in the gas collide with charges generated by the charging device 7 in the flue 4 and are charged, collide with atomized liquid drops generated by the spraying device 6 to be agglomerated, so that agglomeration growth and partial removal of the dust and fog particles are realized, water generated in the process is collected by the liquid drop collecting device 5, then is sent back to the circulating filtering water tank 13 to be filtered, and then is sent back to the spraying device 6 for recycling through the #2 variable-frequency circulating pump 15;
The pretreated gas enters a multi-force coupling removal tower 8, and the high-efficiency removal of pollutants in the gas is realized by utilizing the coupling of inertia force and electric field force in a multi-force coupling pollutant removal device 10, and then the gas is discharged through a variable-frequency induced draft fan 12; the water generated in the process is sent back to the circulating filtering water tank 13 for filtering through the bottom of the multi-force coupling removal tower 8 for use; in the operation process, under the control of the intelligent control system 1, the #1 circulating pump 14 is started periodically, and the multi-force coupling pollutant removing device 10 is cleaned by spraying through the cleaning nozzle 9 so as to eliminate particle deposition on the polar plate.
The above embodiments are provided to illustrate the technical concept and features of the present invention and are intended to enable those skilled in the art to understand the content of the present invention and implement the same, and are not intended to limit the scope of the present invention. All equivalent changes or modifications made according to the spirit of the present invention should be construed to be included in the scope of the present invention.
Claims (6)
1. The gas purifying device comprises a collecting cover and a multi-force coupling removal tower, wherein the removal tower is connected with the collecting cover through a pipeline, an air inlet groove is formed in the lower part of the collecting cover, an outlet pipeline is arranged on the upper part of the collecting cover, a charging device, a spraying device and a liquid drop collecting device are arranged in the outlet pipeline, the charging device is arranged in a cavity on the pipe wall of the outlet pipeline, the spraying device is arranged on the upper part of the charging device, the liquid drop collecting device is arranged on the lower part of the spraying device, and flue gas subjected to charging and spraying pretreatment enters the multi-force coupling removal tower; the device comprises a removal tower, a cleaning nozzle, a multi-force coupling pollutant removal device and a control device, wherein the cleaning nozzle and the multi-force coupling pollutant removal device are arranged in the removal tower, the cleaning nozzle is positioned at the upper part of the removal tower, the multi-force coupling pollutant removal device is positioned at the lower part of the cleaning nozzle, and the cleaning nozzle comprises a plurality of baffle plates which are arranged at intervals and discharge electrodes arranged between the adjacent baffle plates;
The lower part of the collecting cover is provided with a plurality of air inlet grooves, the widths of the air inlet grooves are different, and the widths of the air inlet grooves gradually increase along the direction from the center of the air inlet groove to the side part;
the width of the air inlet groove gradually increases along the direction from the center of the air inlet groove to the edge;
along the flow direction of the gas in the stripping tower, the voltage of the discharge electrode is gradually increased; the voltage of the discharge electrode gradually increases in magnitude along the flow direction of the gas in the stripping column.
2. The gas cleaning device according to claim 1, comprising a circulating filter tank, wherein the droplet collecting device is connected to the circulating filter tank, and the collected droplets flow into the circulating filter tank through a pipe.
3. The gas cleaning apparatus according to claim 2, wherein the cleaning nozzle sprays water and collected droplets, and the droplets are sent from the bottom of the removal tower to the circulating filter water tank for filtration treatment, and then reintroduced into the nozzle via the circulating water pump.
4. The gas cleaning apparatus according to claim 1, wherein the charging means is symmetrically arranged, and the charging means and the discharge electrode are powered by a high voltage power supply.
5. The gas cleaning apparatus according to claim 1, wherein the discharge electrode comprises a baffle plate disposed between the baffle plates.
6. A purifying process of the gas purifying device according to any one of claims 1 to 5, wherein the gas containing dust/fog pollutants generated in the production process is collected by a collecting cover at equal pressure, the collected gas containing pollutants is pretreated by a charging and spraying device and then enters a multi-force coupling removal tower, and the pollutants in the gas are removed and then led out by a draught fan for discharge; the wastewater generated by the charging device, the spraying device and the multi-force coupling pollutant removing device all enter a circulating filtering water tank, impurities are filtered through the filtering device, and then the filtered wastewater is reintroduced into the nozzle for use.
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| CN110514550A (en) * | 2019-09-27 | 2019-11-29 | 中国矿业大学(北京) | A kind of coal containing methane gas friction-adsorption/desorption experimental rig and test method |
| CN110734209A (en) * | 2019-10-22 | 2020-01-31 | 浙江环兴机械有限公司 | Operation method of industrial solid waste and sludge rotary kiln co-processing integrated device |
| CN116808758A (en) * | 2022-10-14 | 2023-09-29 | 山东交通学院 | Boiler system |
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