CN215693159U - Purification and absorption device for electroplating sludge treatment workshop - Google Patents
Purification and absorption device for electroplating sludge treatment workshop Download PDFInfo
- Publication number
- CN215693159U CN215693159U CN202023171099.1U CN202023171099U CN215693159U CN 215693159 U CN215693159 U CN 215693159U CN 202023171099 U CN202023171099 U CN 202023171099U CN 215693159 U CN215693159 U CN 215693159U
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- CN
- China
- Prior art keywords
- cover body
- layer
- sludge treatment
- acid
- electroplating sludge
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- 238000010521 absorption reaction Methods 0.000 title claims abstract description 25
- 238000009713 electroplating Methods 0.000 title claims abstract description 25
- 239000010802 sludge Substances 0.000 title claims abstract description 24
- 238000000746 purification Methods 0.000 title claims abstract description 12
- 239000002253 acid Substances 0.000 claims abstract description 60
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims abstract description 27
- 238000002386 leaching Methods 0.000 claims abstract description 25
- 210000001503 joint Anatomy 0.000 claims abstract description 15
- 239000012528 membrane Substances 0.000 claims abstract description 15
- 238000001035 drying Methods 0.000 claims abstract description 12
- 239000002274 desiccant Substances 0.000 claims abstract description 11
- 235000011121 sodium hydroxide Nutrition 0.000 claims abstract description 9
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims abstract description 7
- 239000004810 polytetrafluoroethylene Substances 0.000 claims abstract description 7
- 239000002245 particle Substances 0.000 claims description 9
- 238000007789 sealing Methods 0.000 claims description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical group O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 4
- 239000011148 porous material Substances 0.000 claims description 4
- 239000000741 silica gel Substances 0.000 claims description 4
- 229910002027 silica gel Inorganic materials 0.000 claims description 4
- 230000002378 acidificating effect Effects 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 238000012856 packing Methods 0.000 claims 2
- 238000001914 filtration Methods 0.000 claims 1
- 239000008187 granular material Substances 0.000 claims 1
- 238000001471 micro-filtration Methods 0.000 claims 1
- 239000003595 mist Substances 0.000 abstract description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 4
- 239000010410 layer Substances 0.000 description 32
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 6
- 238000002955 isolation Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000004070 electrodeposition Methods 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 238000006386 neutralization reaction Methods 0.000 description 2
- 238000003916 acid precipitation Methods 0.000 description 1
- 239000003929 acidic solution Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000002440 industrial waste Substances 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 150000002736 metal compounds Chemical class 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000012982 microporous membrane Substances 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 238000005554 pickling Methods 0.000 description 1
- -1 polytetrafluoroethylene Polymers 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000000638 solvent extraction Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
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- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The utility model provides a purification and absorption device for an electroplating sludge treatment workshop. The cover body is of an inverted funnel-shaped multi-layer thin-wall structure, and the multi-layer thin wall of the cover body is divided into a filter membrane layer, an alkaline layer and a drying layer from outside to inside; the lifting lugs are arranged on the outer surface of the cover body, and the butt joint pipe penetrates through the outer wall of the cover body to be installed. The acid leaching tank is covered by the cover body in a targeted and independent mode, and meanwhile, acid mist and water vapor of the acid leaching tank are dried, neutralized and filtered successively through the drying agents, the industrial caustic soda and the PTFE microporous films which are distributed in multiple layers, so that the problem that in the prior art, dispersed acid mist leaks due to large-area acid mist absorption and lack of pertinence is solved effectively, the problem that the acid mist is gathered at the corners of equipment and cannot be absorbed is solved, and the acid leaching tank has the good characteristics of optimized working environment, worker health guarantee, simple structure and durability in the field of electroplating sludge treatment.
Description
Technical Field
The utility model belongs to the electroplating sludge treatment technology, and particularly relates to a purification and absorption device for an electroplating sludge treatment workshop.
Background
The electroplating sludge is a high-pollution industrial waste produced by an electroplating process, and when the electroplating sludge is recycled, various metals or metal compounds are obtained by separation in various modes such as chemical impurity removal, organic solvent extraction and purification, evaporation crystallization, electrodeposition and the like. In the primary leaching process of the electroplating sludge recovery treatment, the most suitable method is to adopt a sulfuric acid system to carry out acid leaching operation, and the sulfuric acid system has the advantages of high leaching rate and contribution to subsequent extraction and electrodeposition operation. However, in the existing electroplating sludge treatment technology, the pickling tank uses a large amount of sulfuric acid or other acidic solutions, so that the interior of a working factory or workshop is flooded with volatile acid mist, and the corrosivity of the volatile acid mist can not only harm the health of workers and surrounding residents, but also cause acid precipitation in the atmospheric environment after being discharged into the atmosphere. Even if an absorption tower device is installed in a specific area of a plant, it is difficult to absorb acid mist dispersed in a plant space where equipment such as an acid leaching tank stands. Therefore, the prior art needs to effectively solve the problem of acid mist diffusion in electroplating sludge treatment workshops.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects in the prior art, the utility model provides a purification and absorption device for an electroplating sludge treatment workshop, which is used for effectively removing acid mist in the electroplating sludge treatment workshop.
The utility model is implemented by the following technical scheme: a purification and absorption device for an electroplating sludge treatment workshop comprises a cover body, a butt joint pipe and a plurality of lifting lugs. The mask body is of an inverted funnel-shaped multi-layer thin-wall structure, the multi-layer thin wall of the mask body is divided into a filter membrane layer, an alkaline layer and a drying layer from outside to inside, the filter membrane layer is made of a microporous filter membrane material with the filter pore diameter being less than or equal to 0.1um, alkaline particles are filled in the alkaline layer, and an acidic drying agent is filled in the drying layer; the lifting lugs are arranged on the outer surface of the cover body, the butt joint pipe penetrates through the outer wall of the cover body to be installed, and a sealing cover which is sealed and covered is arranged at a pipe orifice at the outer end of the butt joint pipe.
Further, the filter membrane layer is a PTFE microporous film.
Further, the alkaline particles filled in the alkaline layer are industrial caustic soda.
Further, the acidic drying agent filled in the drying layer is a silica gel drying agent.
Furthermore, the cover body is arranged in the factory building and covers the acid leaching tank, and the butt joint pipe can be connected to the acid gas absorption tower through a gas pipe.
The utility model has the beneficial effects that:
1. the acid leaching tank is covered by the cover body in a targeted and independent mode, and meanwhile, acid mist and water vapor of the acid leaching tank are dried, neutralized and filtered successively through the drying agents, the industrial caustic soda and the PTFE microporous films which are distributed in multiple layers, so that acid mist particles with the main diameter of 0.1-10 mu m cannot penetrate through the filter film layer and are finally dispersed in the interlayer and are completely absorbed by the caustic soda, the problem that the dispersed acid mist is leaked due to large-area absorption of the acid mist and lack of pertinence in the prior art is effectively solved, the problem that the acid mist is gathered at the corners of equipment and cannot be absorbed is solved, the moisture resistance and the service life of an alkaline layer are ensured by utilizing the drying layer, and for the field of electroplating sludge treatment, the acid leaching tank has the good characteristics of optimizing the working environment, guaranteeing the health of workers, being simple in structure and durable, and is a novel environment-friendly technology which is worthy of popularization.
2. The utility model can utilize the air pipe to connect the butt joint pipe with the acid absorption tower on one side of the plant, thereby realizing the fixed-point air extraction isolation of the air in the acid leaching equipment area, and then supplement the surrounding air into the cover body through the filter membrane layer, so that the surrounding air forms unidirectional flow by taking the acid leaching equipment as the center, and the space in the cover body becomes a negative pressure isolation area, thereby conveying the acid mist of the acid leaching tank to the absorption tower almost without leakage, further reducing the possibility of acid mist dispersion, realizing the high-quality gas environment of the electroplating sludge operation plant area, and having better practical value.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the connection of the present invention to an acid gas absorption column.
In the figure: 1-cover body, 1 a-filter membrane layer, 1 b-alkaline layer, 1 c-drying layer, 2-butt joint pipe, 2 a-sealing cover, 2 b-air pipe and 3-lifting lug.
Detailed Description
The utility model is described in further detail below with reference to the drawings and examples.
As shown in figure 1, the purification and absorption device for the electroplating sludge treatment workshop comprises a cover body 1, a butt joint pipe 2 and two lifting lugs 3. The mask body 1 is of an inverted funnel-shaped multi-layer thin-wall structure, the multi-layer thin wall of the mask body is divided into a filter membrane layer 1a, an alkaline layer 1b and a drying layer 1c from outside to inside, the filter membrane layer 1a is formed by a PTFE (polytetrafluoroethylene) microporous film with the filter pore diameter equal to 0.1um, industrial caustic soda particles are filled in the alkaline layer 1b, and a silica gel drying agent is filled in the drying layer 1 c; the plurality of lifting lugs 3 are arranged on the outer surface of the cover body 1, the butt joint pipe 2 penetrates through the outer wall of the cover body 1 to be installed, and a sealing cover 2a which is closed by a sealing cover 2a is arranged at a pipe orifice at the outer end of the butt joint pipe.
The steps for implementing the specific functions of the utility model are as follows:
the method comprises the following steps: the two lifting lugs 3 are lifted by a lifting appliance of a workshop of an electroplating sludge treatment workshop, the integral device is lifted to one side of the acid leaching tank, materials such as electroplating sludge, acid leaching liquid and the like are added into the acid leaching tank in the workshop, after stirring and constant-temperature acid leaching operation is started, the two lifting lugs 3 are lifted by the lifting appliance again, and the cover body 1 covers the acid leaching tank from top to bottom (as shown in figure 1). At the moment, acid mist and water vapor which are continuously dispersed outwards in the acid leaching operation are blocked by the cover body 1, due to the applicability of the acid drying agent to the drying of acid gas, the water vapor component is firstly absorbed by the silica gel drying agent of the drying layer 1c, the acid mist after drying treatment enters the second alkaline layer 1b and then undergoes acid-base neutralization reaction with NaOH component of industrial caustic soda, the acid mist particles which do not participate in the reaction locally leak to the third filter membrane layer 1a, and the particle diameter of the acid mist particles is generally in the range of 0.1-10um, so the acid mist particles are blocked by the PTFE microporous membrane with the filter pore diameter of 0.1um, and are further dispersed in the second layer and the third layer and are gradually and completely absorbed by the industrial caustic soda, and the complete isolation of the acid mist in the acid leaching tank is realized.
Step two: as shown in fig. 2, the sealing cover 2a on the butt joint pipe 2 is opened, a gas pipe 2b is connected with the butt joint pipe 2, the other end of the gas pipe 2b is connected with the acid gas absorption tower outside the factory building, the negative pressure function and the acid gas neutralization and absorption function of the acid gas absorption tower are started, so that the acid mist in the acid leaching tank is conveyed into the acid gas absorption tower through the butt joint pipe 2 and is neutralized and absorbed, at this time, as the gas in the cover body 1 is pumped away, the air around the outside of the cover body 1 is continuously supplemented into the cover body 1 through the filter membrane layer 1a, by continuously opening the acid gas absorption tower, a unidirectional air flow is formed in the plant from the periphery of the cover body 1 to the center of the acid leaching tank, and the acid mist generated by the acid leaching tank is ensured to be in a nearly leakage-free state and conveyed to the acid gas absorption tower by utilizing the principle of a negative pressure isolation bin, so that the air cleanliness in the plant is further improved, and the working environment and the atmospheric air quality are optimized.
Claims (5)
1. The utility model provides a purify absorbing device for electroplating sludge treatment workshop, includes the cover body, butt joint pipe, a plurality of lug, its characterized in that: the cover body is inversion funnel-shaped multilayer thin-walled structure, and its multilayer thin wall is by outer and divide into filter membrane layer, alkaline layer, dry layer in by, the filter membrane layer comprises the microfiltration membrane material that the filtration pore aperture is less than or equal to 0.1um, alkaline layer packing is equipped with alkaline granule, the dry layer packing is equipped with acid drying agent, and is a plurality of the lug sets up in cover body surface department, run through the cover body outer wall to the pipe and install, its outer end mouth of pipe is equipped with the closing cap that the sealing cap closed.
2. The purification and absorption device for the electroplating sludge treatment plant according to claim 1, which is characterized in that: the filter membrane layer is a PTFE microporous film.
3. The purification and absorption device for the electroplating sludge treatment plant according to claim 1, which is characterized in that: the alkaline particles filled in the alkaline layer are industrial caustic soda.
4. The purification and absorption device for the electroplating sludge treatment plant according to claim 1, which is characterized in that: the acidic drying agent filled in the drying layer is a silica gel drying agent.
5. The purification and absorption device for the electroplating sludge treatment plant according to claim 1, which is characterized in that: the cover body is arranged in the factory building and covers the acid leaching tank, and the butt joint pipe can be connected to the acid gas absorption tower through a gas pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023171099.1U CN215693159U (en) | 2020-12-25 | 2020-12-25 | Purification and absorption device for electroplating sludge treatment workshop |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023171099.1U CN215693159U (en) | 2020-12-25 | 2020-12-25 | Purification and absorption device for electroplating sludge treatment workshop |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215693159U true CN215693159U (en) | 2022-02-01 |
Family
ID=79985109
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023171099.1U Active CN215693159U (en) | 2020-12-25 | 2020-12-25 | Purification and absorption device for electroplating sludge treatment workshop |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215693159U (en) |
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2020
- 2020-12-25 CN CN202023171099.1U patent/CN215693159U/en active Active
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