CN211799987U - Electroplating waste gas treatment device - Google Patents
Electroplating waste gas treatment device Download PDFInfo
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- CN211799987U CN211799987U CN202020177896.1U CN202020177896U CN211799987U CN 211799987 U CN211799987 U CN 211799987U CN 202020177896 U CN202020177896 U CN 202020177896U CN 211799987 U CN211799987 U CN 211799987U
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Abstract
The utility model discloses an electroplating waste gas treatment device, which comprises a wind collecting cover arranged at the upper end of an electroplating bath, the wind collecting cover is communicated with a purifying tower through a gas inlet pipe, a fan is arranged on the gas inlet pipe, the top end of the purifying tower is provided with a gas outlet, the bottom of the purifying tower is provided with an absorption liquid pool, a plurality of layers of gas outlet distributing pipes which are arranged at intervals are arranged in the absorption liquid pool, the middle position of each layer of gas outlet distributing pipe is communicated with the gas inlet pipe, the edge of the gas outlet distributing pipe is sealed, a plurality of nozzles with downward outlets are evenly arranged on the gas outlet distributing pipe, the inner diameter of the gas outlet distributing pipe is gradually increased from bottom to top, the inner diameter of the nozzles on each layer of gas outlet distributing pipes is gradually increased from the middle to two ends, the upper end of the absorption liquid pool is provided with a packing layer, a plurality of spray heads are arranged above the, the overflow port is communicated with the liquid adding tank. The waste gas treatment is more sufficient and the efficiency is high.
Description
Technical Field
The utility model relates to the technical field of electroplating process, in particular to an electroplating waste gas treatment device.
Background
Chromium plating is one of the most widely used plating species in the electroplating industry. The chromium plating layer can endow the metal material with excellent corrosion resistance and wear resistance and lower friction coefficient. The functional chromium plating can better ensure that the surface of the material obtains the excellent characteristics of brightness, hardness, discoloration resistance, wear resistance, corrosion resistance and the like, so the chromium electroplating is widely applied to the industries of surface protection of hardware, electromechanics, automobiles, aerospace key mechanical parts and the like as a surface treatment process technology.
The electroplating industry is a heavy pollution industry, a large amount of toxic and harmful materials such as hydrochloric acid, sulfuric acid, nitric acid, phosphoric acid, hydrofluoric acid, chromic acid, sodium hydroxide, sodium cyanide, a large amount of metal salts and the like are used for electroplating, the chemical materials can emit gases with different degrees in the storage and use processes, and certain gases can stimulate eyes, nose, throat and skin of a person to generate inflammation; some gases such as nickel salt vapor can cause allergy to parts of human skin; the inhalation of a large amount of chromic acid gas can cause damage to human viscera and even canceration; cyanide is very easily absorbed by human body and can enter human body through oral cavity, respiratory tract or skin. The existing electroplating waste gas treatment device has the phenomena that the spraying effect is not in place and the reaction with an absorbent is insufficient in a purification tower, and some waste gas which is not subjected to the full reaction is easy to disperse into the outside air, so that the safety of the surrounding environment and personnel can not be ensured.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects, the utility model aims to provide an electroplating waste gas treatment device.
In order to achieve the above purpose, the utility model discloses a technical scheme is: the utility model provides an electroplating waste gas treatment device, is including setting up the wind-collecting cover in the plating bath upper end, the wind-collecting cover has the purifying column through the intake pipe intercommunication, be provided with the fan in the intake pipe, the purifying column top end is provided with gas outlet, its characterized in that: the purification column bottom is provided with the absorption liquid pond, the interval places's the distributing pipe of giving vent to anger about the multilayer is provided with in the absorption liquid pond, every layer the distributing pipe intermediate position of giving vent to anger all communicates with each other with the intake pipe, the edge of the distributing pipe of giving vent to anger is sealed, evenly be provided with a plurality of export nozzle down on the distributing pipe of giving vent to anger, the internal diameter of the distributing pipe of giving vent to anger is crescent from bottom to top, every layer the nozzle internal diameter on the distributing pipe of giving vent to anger is crescent from the centre to both ends gradually, absorption liquid pond upper end is provided with the packing layer, the packing layer top is provided with a plurality of shower heads, the liquid feeding groove that the absorbent was equipped with through feed liquor pipe intercommunication to the shower head, be provided with the centrifugal pump on.
The beneficial effects of the utility model are that, the waste gas that produces in the plating bath is collected through the air-collecting cover, give vent to anger the absorption liquid reaction in distributing pipe and the absorption liquid pond through intake pipe and multilayer, the multilayer internal diameter of giving vent to anger the distributing pipe is supreme crescent from bottom to top, be convenient for improve the air current of upper strata distribution pipe of giving vent to anger, the nozzle internal diameter on the distributing pipe of giving vent to anger on every layer is from middle to both ends grow gradually, be convenient for improve the air current of edge nozzle, waste gas in the absorption liquid pond degree of consistency has been guaranteed, the packing layer absorbs the waste gas that spills over, the shower head sprays the waste gas.
Preferably, the nozzles of the air outlet distribution pipes in adjacent layers are arranged at intervals, so that the uniformity of the exhaust air outlet is improved.
Preferably, the outlet distribution pipe has two layers.
Preferably, still be provided with the drying layer between shower head and the gas outlet, the drying layer top is provided with the active carbon adsorption layer, drying layer and active carbon adsorption layer all with purifying column inner wall fixed connection. The treatment effect of the waste gas is improved.
Preferably, the spray header positioned at the edge is obliquely arranged towards the inner wall of the purification tower, and the inclination angle of the spray header is 45-60 degrees. The spray header that the edge slope set up sprays towards the scrubbing tower inner wall, can effectively clean the scrubbing tower.
Preferably, a stainless steel filter screen is arranged at the overflow port.
Preferably, a detection device for detecting the concentration of the absorbent is arranged in the liquid adding tank, and the detection device is a conductivity meter and/or a pH meter.
Drawings
FIG. 1 is a schematic structural diagram of the present embodiment;
fig. 2 is a schematic structural view of two layers of outlet distribution pipes in this embodiment;
fig. 3 is a schematic structural diagram of a in fig. 1.
In the figure:
1-electroplating bath, 2-air collecting hood, 3-air inlet pipe, 4-purification tower, 5-blower, 6-air outlet, 7-absorption liquid pool, 8-air outlet distribution pipe, 9-nozzle, 10-packing layer, 11-spray header, 12-liquid inlet pipe, 13-liquid feeding tank, 14-centrifugal pump, 15-overflow port, 16-drying layer, 17-active carbon adsorption layer and 18-medicine feeding device.
Detailed Description
The following detailed description of the preferred embodiments of the present invention will be provided in conjunction with the accompanying drawings, so as to enable those skilled in the art to more easily understand the advantages and features of the present invention, and thereby define the scope of the invention more clearly and clearly.
Referring to the attached drawings 1-2, the electroplating waste gas treatment device in the embodiment includes a wind collection cover 2 disposed at an upper end of an electroplating bath 1, the wind collection cover 2 is communicated with a purification tower 4 through an air inlet pipe 3, the air inlet pipe 3 is provided with a fan 5 and a switch valve, and an air outlet 6 is disposed at a top end of the purification tower 4. An absorption liquid pool 7 is arranged at the bottom of the purification tower 4, and absorption liquid is filled in the absorption liquid pool 7. The absorption liquid pool 7 is internally provided with a plurality of layers of air outlet distribution pipes 8 which are arranged at intervals from top to bottom, and the middle position of each layer of air outlet distribution pipe 8 is communicated with the air inlet pipe 3. The both ends edge of the distributing pipe 8 of giving vent to anger seals, evenly be provided with a plurality of export nozzles 9 down on the distributing pipe 8 of giving vent to anger, the internal diameter of the distributing pipe 8 of giving vent to anger is upwards crescent gradually from bottom to top, every layer 9 internal diameters of the last nozzle of the distributing pipe 8 of giving vent to anger grow gradually to both ends from the centre. The internal diameter of the multilayer air outlet distribution pipe 8 is gradually increased from bottom to top, so that the air flow of the upper air outlet distribution pipe 8 is convenient to improve, the internal diameter of the nozzle 9 on each layer of air outlet distribution pipe 8 is gradually increased from the middle to two ends, the air flow of the edge nozzle 9 is convenient to improve, the uniformity of waste gas in the absorption liquid pool 7 is ensured, and the waste gas can be fully contacted with the absorbent in the absorption liquid pool 7.
The upper end of the absorption liquid pool 7 is provided with a packing layer 10, the packing layer 10 comprises a perforated clapboard arranged in the purification tower 4 and a packing arranged on the perforated clapboard, and the packing is a glass spring or a Raschig ring. A plurality of spray headers 11 are arranged above the packing layer 10, the spray headers 11 are communicated with a liquid adding groove 13 filled with absorbent through a liquid inlet pipe 12, and a switch valve is arranged on the liquid inlet pipe 12. The liquid inlet pipe 12 is provided with a centrifugal pump 14, the lower end of the purifying tower 4 is provided with an overflow port 15 communicated with the absorption liquid pool 7, and the overflow port 15 is communicated with a liquid adding tank 13.
During operation, waste gas that produces in the plating bath 1 is collected through air-collecting cover 2, gives vent to anger through intake pipe 3 and multilayer and distributes the even reaction of liquid absorption in pipe 8 and the absorption liquid pond 7, and packing layer 10 absorbs the waste gas that overflows simultaneously, and shower head 11 sprays the waste gas that overflows, has improved the exhaust-gas treatment effect. When the absorption liquid in the absorption liquid pool 7 excessively exceeds the overflow port 15, the liquid adding tank 13 flows through the overflow port 15, and the recycling is realized.
And a detection device for detecting the concentration of the absorbent is arranged in the liquid adding tank 13, and the detection device is a conductivity meter and/or a PH meter. The liquid adding tank 13 is also communicated with a dosing device 18 through a pipeline, when the detection device detects that the concentration of the absorbent in the liquid adding tank 13 is too low, the solute is added into the liquid adding tank 13 through the dosing device 18 to improve the concentration of the absorbent, and the absorbent is uniformly stirred through a stirring paddle in the liquid adding tank 13.
In order to filter solid impurities and reduce the pollution to the absorbent in the liquid adding groove 13, a stainless steel filter screen is arranged at the overflow port 15.
The outlet distribution pipe 8 is preferably two layers. The nozzles 9 of the air outlet distribution pipes 8 of the adjacent layers are arranged at intervals, so that the uniformity of the exhaust air outlet is improved.
Still be provided with dry layer 16 between shower head 11 and the gas outlet 6, dry layer 16 top is provided with activated carbon adsorption layer 17, dry layer 16 and activated carbon adsorption layer 17 all with 4 inner wall fixed connection of purifying column, improve the treatment effect of waste gas.
Referring to fig. 3, the spray header 11 at the edge is obliquely arranged towards the inner wall of the purification tower 4, the spray header 11 at the edge is sprayed in a circle closest to the inner wall of the spray tower, and the inclination angle of the spray header 11 is 45-60 degrees. The spray header 11 with the inclined edge sprays towards the inner wall of the purification tower 4, so that the purification tower 4 can be effectively cleaned. The other spray headers 11 are all arranged downwards and used for spraying and purifying overflowed waste gas.
The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, so as not to limit the protection scope of the present invention, and all equivalent changes or modifications made according to the spirit of the present invention should be covered in the protection scope of the present invention.
Claims (7)
1. The utility model provides an electroplating waste gas treatment device, is including setting up wind-collecting cover (2) in plating bath (1) upper end, wind-collecting cover (2) have purifying column (4) through intake pipe (3) intercommunication, be provided with fan (5) on intake pipe (3), purifying column (4) top is provided with gas outlet (6), its characterized in that: the purification tower (4) bottom is provided with absorption liquid pond (7), be provided with multilayer upper and lower interval placement's the distributor pipe (8) of giving vent to anger in absorption liquid pond (7), every layer the distributor pipe (8) intermediate position of giving vent to anger all communicates with each other with intake pipe (3), the edge of the distributor pipe (8) of giving vent to anger is sealed, evenly be provided with a plurality of export nozzle (9) down on the distributor pipe (8) of giving vent to anger, the internal diameter of the distributor pipe (8) of giving vent to anger is crescent from the centre to both ends from bottom to top, absorption liquid pond (7) upper end is provided with packing layer (10), packing layer (10) top is provided with a plurality of shower heads (11), shower head (11) are equipped with adding of absorbent through feed liquor pipe (12) intercommunication with liquid groove (13), be provided with centrifugal pump (14) on feed liquor pipe (12), the lower end of the purification tower (4) is provided with an overflow port (15) communicated with the absorption liquid pool (7), and the overflow port (15) is communicated with the liquid adding tank (13).
2. The plating waste gas treatment device according to claim 1, characterized in that: and the nozzles (9) of the air outlet distribution pipes (8) of adjacent layers are arranged at intervals.
3. The plating waste gas treatment device according to claim 1, characterized in that: the air outlet distribution pipe (8) is divided into two layers.
4. The plating waste gas treatment device according to claim 1, characterized in that: still be provided with between shower head (11) and gas outlet (6) dry layer (16), dry layer (16) top is provided with activated carbon adsorption layer (17), dry layer (16) and activated carbon adsorption layer (17) all with purifying column (4) inner wall fixed connection.
5. The plating waste gas treatment device according to claim 1, characterized in that: the spray header (11) close to the inner wall of the purification tower (4) is obliquely arranged towards the inner wall of the purification tower (4), and the inclination angle of the spray header (11) is 45-60 degrees.
6. The plating waste gas treatment device according to claim 1, characterized in that: a stainless steel filter screen is arranged at the overflow port (15).
7. The plating waste gas treatment device according to claim 1, characterized in that: and a detection device for detecting the concentration of the absorbent is arranged in the liquid adding tank (13), and the detection device is a conductivity meter and/or a PH meter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020177896.1U CN211799987U (en) | 2020-02-17 | 2020-02-17 | Electroplating waste gas treatment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020177896.1U CN211799987U (en) | 2020-02-17 | 2020-02-17 | Electroplating waste gas treatment device |
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| Publication Number | Publication Date |
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| CN211799987U true CN211799987U (en) | 2020-10-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020177896.1U Active CN211799987U (en) | 2020-02-17 | 2020-02-17 | Electroplating waste gas treatment device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115445409A (en) * | 2022-08-24 | 2022-12-09 | 无锡市远洲环保科技有限公司 | Acid-base waste gas treatment device with chemical dosage adjustable function |
-
2020
- 2020-02-17 CN CN202020177896.1U patent/CN211799987U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115445409A (en) * | 2022-08-24 | 2022-12-09 | 无锡市远洲环保科技有限公司 | Acid-base waste gas treatment device with chemical dosage adjustable function |
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