CN110917774A - Waste gas treatment conveying device for environment-friendly equipment - Google Patents
Waste gas treatment conveying device for environment-friendly equipment Download PDFInfo
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- CN110917774A CN110917774A CN201911263608.2A CN201911263608A CN110917774A CN 110917774 A CN110917774 A CN 110917774A CN 201911263608 A CN201911263608 A CN 201911263608A CN 110917774 A CN110917774 A CN 110917774A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
- B01D47/06—Spray cleaning
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
- B01D50/60—Combinations of devices covered by groups B01D46/00 and B01D47/00
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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
- B01D53/04—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 stationary adsorbents
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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
- B01D53/14—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 absorption
- B01D53/18—Absorbing units; Liquid distributors therefor
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Treating Waste Gases (AREA)
Abstract
A waste gas treatment conveying device for environmental protection equipment comprises a spraying box, an air inlet pipe, a first air outlet pipe, a filter screen, a water pump, an air inlet pipe, a water outlet pipe, a water distribution disc, a support and a first air delivery pipe; the air inlet pipe penetrates through the spraying box, the end part of the air inlet pipe is communicated with the first air outlet pipe, and a first control valve is arranged on the air inlet pipe; the first air outlet pipe is an annular pipe, and a first air outlet hole is formed in the bottom of the first air outlet pipe; a plurality of first air outlet holes are uniformly arranged around the central axis of the first air outlet pipe; the filter screen is in a pyramid structure, is arranged on the inner surface of the spray box and is positioned below the first air outlet pipe; the drain pipe penetrates through the top of the spraying box; the water distribution disc and the bracket are both positioned in the spraying box; the water distribution disc is arranged at the bottom of the bracket, and a nozzle is arranged at the bottom of the water distribution disc; the bracket is arranged on the inner surface of the spraying box; the top of the spraying box is communicated with a first gas pipe. The invention can treat the waste gas by spraying the liquid medicine and remove the granular impurities and harmful substances in the waste gas.
Description
Technical Field
The invention relates to the technical field of waste gas treatment, in particular to a waste gas treatment conveying device for environment-friendly equipment.
Background
With the increasing recognition of the importance of environmental protection, people have taken corresponding measures to improve the environment.
In industrial production, the waste gas generated is directly discharged into the air if not well treated, and causes great damage to the environment. Therefore, how to treat the waste gas discharged from the factory becomes an urgent problem to be solved.
Disclosure of Invention
Objects of the invention
In order to solve the technical problems in the background art, the invention provides a waste gas treatment conveying device for environment-friendly equipment, which can treat waste gas by spraying liquid medicine and remove granular impurities and harmful substances in the waste gas.
(II) technical scheme
The invention provides a waste gas treatment conveying device for environment-friendly equipment, which comprises a spraying box, an air inlet pipe, a first air outlet pipe, a filter screen, a water pump, an water inlet pipe, a water outlet pipe, a water distribution disc, a support and a first air delivery pipe, wherein the spraying box is arranged on the top of the spraying box;
the air inlet pipe penetrates through the spraying box, the end part of the air inlet pipe is communicated with the first air outlet pipe, and a first control valve is arranged on the air inlet pipe; the first air outlet pipe is an annular pipe, and a first air outlet hole is formed in the bottom of the first air outlet pipe; a plurality of first air outlet holes are uniformly arranged around the central axis of the first air outlet pipe; the filter screen is of a pyramid structure, the top of the tower is arranged upwards, the filter screen is arranged on the inner surface of the spray box, and the filter screen is positioned below the first air outlet pipe; the water pump is communicated with the bottom of the spraying tank through a water inlet pipe, the height of the communicated part is lower than that of the filter screen, and the water pump is communicated with the water distribution disc through a drain pipe; the drain pipe penetrates through the top of the spraying box; the water distribution disc and the bracket are both positioned in the spraying box; the water distribution disc is of an annular structure and is arranged at the bottom of the bracket, and a nozzle is arranged at the bottom of the water distribution disc; a plurality of nozzles are uniformly arranged around the central axis of the water distribution disc, the nozzles are positioned above the first air outlet pipe, and the water spray direction of the nozzles faces downwards; the bracket is arranged on the inner surface of the spraying box; the top of the spraying box is communicated with a first gas pipe.
Preferably, the inner side of the first air outlet pipe is connected with a second air outlet pipe; a second air outlet hole is formed in the bottom of the second air outlet pipe, and a third air outlet pipe is connected to one end, far away from the first air outlet pipe, of the second air outlet pipe; the third air outlet pipe is an annular pipe, the third air outlet pipe and the first air outlet pipe are coaxially arranged, and a third air outlet hole is formed in the bottom of the third air outlet pipe; the third venthole is evenly provided with a plurality ofly around third outlet duct axis.
Preferably, the outer peripheral surface of the water distribution disc is connected with a connecting pipe; one end of the connecting pipe, which is far away from the water distribution disc, is connected with a water delivery pipe; the bottom parts of the connecting pipe and the water delivery pipe are provided with nozzles; the water delivery pipe is an annular pipe and is coaxially arranged with the water distribution disc.
Preferably, one end of the first gas pipe, which is far away from the spraying box, is connected with an ionization box; the ionization chamber is internally provided with an electrostatic generator for carrying out ionization treatment on waste gas, and one side of the ionization chamber, which is far away from the first gas pipe, is connected with a second gas pipe.
Preferably, one end of the second gas pipe, which is far away from the ionization box, is connected with a purification box; the inner surface of the purification box is provided with an active carbon filter layer, and the top of the purification box is communicated with an air outlet pipe; the height of the activated carbon filter layer is higher than the height of the joint of the second gas transmission pipe and the purification box; and a second control valve is arranged on the air outlet pipe.
Preferably, a drying layer is arranged on the inner surface of the purification box; the drying layer is positioned above the activated carbon filtering layer.
Preferably, an air quality detector for detecting the air quality in the purification box is arranged on the purification box, and the top of the purification box is communicated with a return pipe; the detection end of the air quality detector extends into the purification box and is positioned above the drying layer; the return pipe is provided with a third control valve, and one end of the return pipe, which is far away from the purification box, is communicated with the spraying box.
Compared with the prior art, the technical scheme of the invention has the following beneficial technical effects: waste gas is conveyed to the first air outlet pipe through the air inlet pipe, the waste gas is diffused in the spraying box from the first air outlet holes at the bottom of the first air outlet pipe, the uniformly arranged first air outlet holes enable the diffusion of the waste gas to be more uniform, the water pump conveys liquid medicine used for treating the waste gas at the bottom of the spraying box to the water distribution disc through the water inlet pipe and the water outlet pipe, the water distribution disc distributes the liquid medicine to a plurality of nozzles, the uniformly arranged nozzles spray the liquid medicine downwards, the liquid medicine is uniformly distributed, the contact area between the uniformly distributed liquid medicine and the uniformly distributed waste gas is larger, the reaction area is larger, granular impurities and harmful substances in the waste gas can be better removed, the removed impurities fall onto the filter screen and slide downwards along the filter screen of the pyramid structure, thereby the filtering effect of the filter screen at each position is ensured, the probability that the filter screen is blocked by the impurities is reduced, the, thereby being capable of recycling and being more environment-friendly and economical. The invention can treat the waste gas by spraying the liquid medicine and remove the granular impurities and harmful substances in the waste gas.
Drawings
Fig. 1 is a schematic structural diagram of an exhaust gas treatment conveying device for an environmental protection device according to the present invention.
Fig. 2 is a structural sectional view of an exhaust gas treatment delivery device for an eco-friendly apparatus according to the present invention.
Fig. 3 is a schematic structural diagram of an air inlet pipe, a first air outlet pipe, a second air outlet pipe and a third air outlet pipe in the waste gas treatment conveying device for the environmental protection equipment.
Fig. 4 is an enlarged view of a structure at a in fig. 2.
Fig. 5 is an enlarged view of the structure at B in fig. 2.
Reference numerals: 100. a spray box; 200. an ionization chamber; 300. a purification box; 1. an air inlet pipe; 101. a first control valve; 2. a first air outlet pipe; 201. a first air outlet hole; 3. a second air outlet pipe; 301. a second air outlet; 4. a third air outlet pipe; 401. a third air outlet; 5. a filter screen; 6. a water pump; 601. a water inlet pipe; 602. a drain pipe; 7. a water diversion disc; 8. a connecting pipe; 9. a water delivery pipe; 10. a nozzle; 11. a support; 12. a first gas delivery pipe; 13. an electrostatic generator; 14. a second gas delivery pipe; 15. an activated carbon filter layer; 16. drying the layer; 17. an air outlet pipe; 171. a second control valve; 18. an air quality detector; 19. a return pipe; 191. and a third control valve.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings in conjunction with the following detailed description. It should be understood that the description is intended to be exemplary only, and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.
As shown in fig. 1-5, the waste gas treatment conveying device for environmental protection equipment provided by the invention comprises a spray box 100, an air inlet pipe 1, a first air outlet pipe 2, a filter screen 5, a water pump 6, a water inlet pipe 601, a water outlet pipe 602, a water distribution disc 7, a support 11 and a first air delivery pipe 12;
the air inlet pipe 1 penetrates through the spraying box 100, the end part of the air inlet pipe 1 is communicated with the first air outlet pipe 2, and the air inlet pipe 1 is provided with a first control valve 101; the first air outlet pipe 2 is an annular pipe, and a first air outlet hole 201 is formed in the bottom of the first air outlet pipe 2; a plurality of first air outlet holes 201 are uniformly arranged around the central axis of the first air outlet pipe 2; the filter screen 5 is in a pyramid structure, the top of the tower is arranged upwards, the filter screen 5 is arranged on the inner surface of the spray box 100, and the filter screen 5 is positioned below the first air outlet pipe 2; the water pump 6 is communicated with the bottom of the spray box 100 through a water inlet pipe 601, the height of the communicated position is lower than that of the filter screen 5, and the water pump 6 is communicated with the water distribution disc 7 through a water discharge pipe 602; the drain pipe 602 runs through the top of the spray box 100; the water distribution disc 7 and the bracket 11 are both positioned inside the spray box 100; the water distribution disc 7 is of an annular structure, the water distribution disc 7 is arranged at the bottom of the bracket 11, and a nozzle 10 is arranged at the bottom of the water distribution disc 7; a plurality of nozzles 10 are uniformly arranged around the central axis of the water distribution disc 7, the nozzles 10 are positioned above the first air outlet pipe 2, and the water spraying direction of the nozzles 10 faces downwards; the bracket 11 is arranged on the inner surface of the spray box 100; the top of the spraying box 100 is communicated with a first air pipe 12.
In the invention, waste gas is conveyed to the first gas outlet pipe 2 through the gas inlet pipe 101 and is diffused in the spraying box 100 from the first gas outlet holes 201 at the bottom of the first gas outlet pipe 2, the uniformly arranged first gas outlet holes 201 enable the diffusion of the waste gas to be more uniform, the water pump 6 conveys liquid medicine for treating the waste gas at the bottom of the spraying box 100 to the water distribution disc 7 through the water inlet pipe 601 and the water outlet pipe 602, the water distribution disc 7 distributes the liquid medicine to the plurality of nozzles 10, the uniformly arranged nozzles 10 spray the liquid medicine downwards, the liquid medicine is uniformly distributed, the contact area of the uniformly distributed liquid medicine and the uniformly distributed waste gas is larger, the reaction area is larger, the granular impurities and harmful substances in the waste gas can be better removed, the removed impurities fall onto the filter screen 5 and slide downwards along the filter screen 5 with a pyramid structure, thereby ensuring the filtering effect at each part of the filter screen 5 and reducing the probability that the filter screen 5 is blocked by the impurities, the liquid medicine passes through the filter screen 5 and continuously falls, so that the liquid medicine can be recycled, and the environment is protected and saved. The invention can treat the waste gas by spraying the liquid medicine and remove the granular impurities and harmful substances in the waste gas.
In an alternative embodiment, the inner side of the first outlet pipe 2 is connected with a second outlet pipe 3; a second air outlet hole 301 is formed in the bottom of the second air outlet pipe 3, and a third air outlet pipe 4 is connected to one end, far away from the first air outlet pipe 2, of the second air outlet pipe 3; the third air outlet pipe 4 is an annular pipe, the third air outlet pipe 4 is coaxially arranged with the first air outlet pipe 2, and the bottom of the third air outlet pipe 4 is provided with a third air outlet hole 401; the third venthole 401 is evenly provided with a plurality of around the 4 axis of third outlet duct.
It should be noted that the second outlet pipe 3 and the third outlet pipe 4 are arranged, so that the outlet range of the waste gas can be further expanded, and the waste gas is discharged from the first outlet hole 201, the second outlet hole 301 and the third outlet hole 401, so that the waste gas is diffused more uniformly.
In an alternative embodiment, the outer peripheral surface of the water diversion disc 7 is connected with a connecting pipe 8; one end of the connecting pipe 8, which is far away from the water distribution disc 7, is connected with a water delivery pipe 9; the bottom parts of the connecting pipe 8 and the water delivery pipe 9 are provided with nozzles 10; the water delivery pipe 9 is an annular pipe, and the water delivery pipe 9 and the water distribution disc 7 are coaxially arranged.
It should be noted that, by providing the connecting pipe 8 and the water pipe 9 and providing the nozzle 10 at the bottom of the connecting pipe 8 and the water pipe 9, the spraying range of the liquid medicine can be further expanded, and the contact area between the liquid medicine and the waste gas can be further increased.
In an alternative embodiment, the ionization box 200 is connected to one end of the first gas pipe 12 away from the spray box 100; an electrostatic generator 13 for performing ionization treatment on the waste gas is arranged in the ionization box 200, and a second gas pipe 14 is connected to one side of the ionization box 200, which is far away from the first gas pipe 12.
The waste gas after the chemical liquid treatment enters the ionization chamber 200 through the first gas pipe 12, and is ionized by the electrostatic generator 13, so as to remove dust in the waste gas.
In an optional embodiment, the end of the second gas pipe 14 away from the ionization chamber 200 is connected with a purification chamber 300; the inner surface of the purification box 300 is provided with an active carbon filter layer 15, and the top of the purification box 300 is communicated with an air outlet pipe 17; the height of the activated carbon filter layer 15 is higher than the height of the joint of the second air conveying pipe 14 and the purification box 300; the outlet pipe 17 is provided with a second control valve 171.
It should be noted that the waste gas after the ionization treatment is delivered to the purification box 300 through the second gas delivery pipe 14, the waste gas is filtered and purified by the activated carbon filter layer 15, so as to remove substances generating peculiar smell in the waste gas, and the purified waste gas is discharged through the gas outlet pipe 17.
In an alternative embodiment, the decontamination chamber 300 has a desiccant layer 16 disposed on its interior surface; the drying layer 16 is located above the activated carbon filtration layer 15.
It should be noted that by providing the drying layer 16, moisture in the exhaust gas can be removed, so that the discharged air is dried more.
In an alternative embodiment, an air quality detector 18 for detecting the air quality in the purification box 300 is arranged on the purification box 300, and the top of the purification box 300 is communicated with a return pipe 19; the detection end of the air quality detector 18 extends into the purification box 300 and is positioned above the drying layer 16; the return pipe 19 is provided with a third control valve 191, and one end of the return pipe 19 far away from the purification box 300 is communicated with the spraying box 100.
It should be noted that the air quality detector 18 is provided to detect the exhaust gas treated in the purge tank 300, and when the detected quality is acceptable, the exhaust gas is discharged through the outlet pipe 17, and when the detected quality is not acceptable, the second control valve 171 is closed, the third control valve 191 is opened, and the unqualified exhaust gas is returned to the shower tank 100 through the return pipe 19 to be treated again.
It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.
Claims (7)
1. A waste gas treatment conveying device for environmental protection equipment is characterized by comprising a spraying box (100), an air inlet pipe (1), a first air outlet pipe (2), a filter screen (5), a water pump (6), an water inlet pipe (601), a water outlet pipe (602), a water distribution disc (7), a support (11) and a first air conveying pipe (12);
the air inlet pipe (1) penetrates through the spraying box (100), the end part of the air inlet pipe (1) is communicated with the first air outlet pipe (2), and a first control valve (101) is arranged on the air inlet pipe (1); the first air outlet pipe (2) is an annular pipe, and a first air outlet hole (201) is formed in the bottom of the first air outlet pipe (2); a plurality of first air outlet holes (201) are uniformly arranged around the central axis of the first air outlet pipe (2); the filter screen (5) is of a pyramid structure, the top of the tower is arranged upwards, the filter screen (5) is arranged on the inner surface of the spray box (100), and the filter screen (5) is positioned below the first air outlet pipe (2); the water pump (6) is communicated with the bottom of the spraying box (100) through a water inlet pipe (601), the height of the communicated part is lower than that of the filter screen (5), and the water pump (6) is communicated with the water distribution disc (7) through a water discharge pipe (602); the drain pipe (602) penetrates through the top of the spraying box (100); the water distribution disc (7) and the bracket (11) are both positioned inside the spray box (100); the water distribution disc (7) is of an annular structure, the water distribution disc (7) is arranged at the bottom of the bracket (11), and a nozzle (10) is arranged at the bottom of the water distribution disc (7); a plurality of nozzles (10) are uniformly arranged around the central axis of the water distribution disc (7), the nozzles (10) are positioned above the first air outlet pipe (2), and the water spraying direction of the nozzles (10) faces downwards; the bracket (11) is arranged on the inner surface of the spraying box (100); the top of the spraying box (100) is communicated with a first air conveying pipe (12).
2. The waste gas treatment conveying device for the environmental protection equipment is characterized in that a second outlet pipe (3) is connected to the inner side of the first outlet pipe (2); a second air outlet hole (301) is formed in the bottom of the second air outlet pipe (3), and a third air outlet pipe (4) is connected to one end, far away from the first air outlet pipe (2), of the second air outlet pipe (3); the third air outlet pipe (4) is an annular pipe, the third air outlet pipe (4) and the first air outlet pipe (2) are coaxially arranged, and a third air outlet hole (401) is formed in the bottom of the third air outlet pipe (4); the third air outlet holes (401) are uniformly arranged around the central axis of the third air outlet pipe (4).
3. The exhaust-gas treatment conveying device for the environmental protection equipment according to claim 2, characterized in that the outer peripheral surface of the water diversion disc (7) is connected with a connecting pipe (8); one end of the connecting pipe (8) far away from the water distribution disc (7) is connected with a water delivery pipe (9); the bottom parts of the connecting pipe (8) and the water delivery pipe (9) are provided with nozzles (10); the water delivery pipe (9) is an annular pipe, and the water delivery pipe (9) and the water distribution disc (7) are coaxially arranged.
4. The waste gas treatment conveying device for the environmental protection equipment as claimed in claim 1, wherein one end of the first gas pipe (12) far away from the spray box (100) is connected with an ionization box (200); an electrostatic generator (13) used for carrying out ionization treatment on waste gas is arranged in the ionization box (200), and one side, far away from the first air conveying pipe (12), of the ionization box (200) is connected with a second air conveying pipe (14).
5. The waste gas treatment conveying device for the environmental protection equipment is characterized in that one end, far away from the ionization box (200), of the second gas conveying pipe (14) is connected with a purification box (300); an active carbon filter layer (15) is arranged on the inner surface of the purification box (300), and the top of the purification box (300) is communicated with an air outlet pipe (17); the height of the active carbon filter layer (15) is higher than that of the joint of the second gas pipe (14) and the purification box (300); the outlet pipe (17) is provided with a second control valve (171).
6. The exhaust gas treatment conveying apparatus for an eco-friendly equipment according to claim 5, wherein the inner surface of the purification tank (300) is provided with a drying layer (16); the drying layer (16) is positioned above the activated carbon filter layer (15).
7. The exhaust-gas treatment conveying device for the environmental protection equipment according to claim 6, wherein the purifying box (300) is provided with an air quality detector (18) for detecting the air quality in the purifying box (300), and the top of the purifying box (300) is communicated with a return pipe (19); the detection end of the air quality detector (18) extends into the purification box (300) and is positioned above the drying layer (16); a third control valve (191) is arranged on the return pipe (19), and one end of the return pipe (19) far away from the purification box (300) is communicated with the spraying box (100).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911263608.2A CN110917774A (en) | 2019-12-11 | 2019-12-11 | Waste gas treatment conveying device for environment-friendly equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911263608.2A CN110917774A (en) | 2019-12-11 | 2019-12-11 | Waste gas treatment conveying device for environment-friendly equipment |
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| Publication Number | Publication Date |
|---|---|
| CN110917774A true CN110917774A (en) | 2020-03-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911263608.2A Pending CN110917774A (en) | 2019-12-11 | 2019-12-11 | Waste gas treatment conveying device for environment-friendly equipment |
Country Status (1)
| Country | Link |
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| CN (1) | CN110917774A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111467959A (en) * | 2020-04-21 | 2020-07-31 | 重庆中会表面处理有限公司 | Chromium plating fog exhaust treatment system |
| CN117105367A (en) * | 2023-09-13 | 2023-11-24 | 南通问鼎金属制品有限公司 | Energy-saving and environment-friendly wastewater treatment equipment for industrial clean production |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111467959A (en) * | 2020-04-21 | 2020-07-31 | 重庆中会表面处理有限公司 | Chromium plating fog exhaust treatment system |
| CN117105367A (en) * | 2023-09-13 | 2023-11-24 | 南通问鼎金属制品有限公司 | Energy-saving and environment-friendly wastewater treatment equipment for industrial clean production |
| CN117105367B (en) * | 2023-09-13 | 2024-04-26 | 南通问鼎金属制品有限公司 | Energy-saving and environment-friendly wastewater treatment equipment for industrial clean production |
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Application publication date: 20200327 |