CN220942351U - Online treatment system for acid etching tank sediment - Google Patents
Online treatment system for acid etching tank sediment Download PDFInfo
- Publication number
- CN220942351U CN220942351U CN202322328846.5U CN202322328846U CN220942351U CN 220942351 U CN220942351 U CN 220942351U CN 202322328846 U CN202322328846 U CN 202322328846U CN 220942351 U CN220942351 U CN 220942351U
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- tank
- overflow weir
- acid etch
- acid etching
- overflow
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- 239000002253 acid Substances 0.000 title claims abstract description 62
- 238000005530 etching Methods 0.000 title claims abstract description 41
- 239000013049 sediment Substances 0.000 title claims abstract description 35
- 238000004062 sedimentation Methods 0.000 claims abstract description 29
- 238000002425 crystallisation Methods 0.000 claims abstract description 23
- 230000008025 crystallization Effects 0.000 claims abstract description 23
- 239000010802 sludge Substances 0.000 claims abstract description 16
- 239000013078 crystal Substances 0.000 claims abstract description 8
- 239000002920 hazardous waste Substances 0.000 claims abstract description 5
- 238000004064 recycling Methods 0.000 claims abstract description 4
- 239000002244 precipitate Substances 0.000 claims description 18
- 238000003756 stirring Methods 0.000 claims description 9
- 239000000047 product Substances 0.000 claims description 7
- 238000001556 precipitation Methods 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 238000007599 discharging Methods 0.000 claims description 3
- 230000008021 deposition Effects 0.000 claims 1
- 238000010924 continuous production Methods 0.000 abstract description 7
- 238000004140 cleaning Methods 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 5
- 230000008569 process Effects 0.000 abstract description 4
- 230000036541 health Effects 0.000 abstract description 2
- 230000003647 oxidation Effects 0.000 abstract description 2
- 238000007254 oxidation reaction Methods 0.000 abstract description 2
- 239000007788 liquid Substances 0.000 description 9
- 230000006872 improvement Effects 0.000 description 6
- MIMUSZHMZBJBPO-UHFFFAOYSA-N 6-methoxy-8-nitroquinoline Chemical compound N1=CC=CC2=CC(OC)=CC([N+]([O-])=O)=C21 MIMUSZHMZBJBPO-UHFFFAOYSA-N 0.000 description 5
- 238000005260 corrosion Methods 0.000 description 5
- 230000007797 corrosion Effects 0.000 description 5
- 238000005192 partition Methods 0.000 description 3
- 230000003247 decreasing effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- IRPGOXJVTQTAAN-UHFFFAOYSA-N 2,2,3,3,3-pentafluoropropanal Chemical compound FC(F)(F)C(F)(F)C=O IRPGOXJVTQTAAN-UHFFFAOYSA-N 0.000 description 1
- KLZUFWVZNOTSEM-UHFFFAOYSA-K Aluminum fluoride Inorganic materials F[Al](F)F KLZUFWVZNOTSEM-UHFFFAOYSA-K 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical group [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000006228 supernatant Substances 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
Landscapes
- ing And Chemical Polishing (AREA)
Abstract
The utility model discloses an online treatment system for acid etching tank sediments, and belongs to the technical field of anodic oxidation. It comprises the following steps: an acid etching tank; the overflow weir is connected with the acid etching tank, a first-stage circulating system is formed between the overflow weir and the acid etching tank, the tank liquor is recycled between the acid etching tank and the overflow weir, and sediment in the tank liquor is deposited at the bottom of the overflow weir in a circulating and overflow mode; the overflow weir can directly discharge the sediment into the crystallization sedimentation tank for treatment and form a crystal; the filter press is connected with the crystallization sedimentation tank, a secondary circulation system is formed between the filter press and the crystallization sedimentation tank, crystals are compressed into sludge and concentrated solution through the filter press, the sludge is subjected to hazardous waste treatment, and the concentrated solution flows back to the overflow weir for recycling. The primary circulation system and the secondary circulation system enable the acid etching tank to continuously discharge sediment generated in the acid etching tank outwards in the continuous production process, continuous production is achieved, manual cleaning is not needed by stopping line regularly, production efficiency is improved, and staff health is guaranteed.
Description
Technical Field
The utility model belongs to the technical field of anodic oxidation, and particularly relates to an online treatment system for acid etching tank sediments.
Background
Because the appearance requirements of different customers on aluminum parts are different, the effects of matte and sand surfaces are achieved, ammonium bifluoride is usually used for etching treatment, and because the ammonium bifluoride has a high corrosion rate on aluminum, a large amount of aluminum fluoride precipitates can be generated in the production process, and on one hand, the existence of the precipitates can block a hollow air pipeline of a tank body to influence the uniformity of product corrosion, and meanwhile, when the precipitates are too much, the products can be inserted into the precipitates, so that the products cannot be contacted with tank liquor, and the products have local color difference.
Due to the existence of the problems, staff needs to stop the line every three days to turn over and clean the acid etching groove, and the production line efficiency is wasted. In addition, after the supernatant liquid is pumped out during tank turning, the lower sediment needs to be put into the tank body by staff to clean the tank bottom sediment, and the strong corrosiveness of ammonium bifluoride is harmful to the health of staff.
Disclosure of Invention
The utility model aims at the problems in the prior art and provides an on-line treatment system for acid etching tank sediment, which can solve a series of problems caused by the sediment in the continuous production process.
The utility model can be realized by the following technical scheme:
an on-line treatment system for acid etch tank precipitates, comprising:
an acid etching tank for etching the product;
the overflow weir is connected with the acid etching tank, a first-stage circulating system is formed between the overflow weir and the acid etching tank, tank liquor is recycled between the acid etching tank and the overflow weir, and sediment in the tank liquor is deposited at the bottom of the overflow weir in a circulating and overflow mode;
The crystallization sedimentation tank is positioned at the bottom of the overflow weir, and the overflow weir can directly discharge sediment into the crystallization sedimentation tank for treatment and form crystals;
The filter press is connected with the crystallization sedimentation tank, a secondary circulation system is formed between the two crystallization sedimentation tank, crystals produced by the crystallization sedimentation tank are compressed into sludge and concentrated solution through the filter press, the sludge is discharged outwards and is subjected to hazardous waste treatment, and the concentrated solution flows back to the overflow weir for recycling.
As a further improvement of the utility model, the internal space of the overflow weir is divided by a plurality of baffles and forms separate sedimentation spaces, each sedimentation space having an independent discharge port.
As a further improvement of the utility model, the heights of the plurality of baffle plates are gradually increased or gradually decreased, so that liquid level differences are formed among the sedimentation spaces, and the overflow weirs form a hierarchical overflow structure.
As a further improvement of the utility model, the sediment discharged from the acid etch tank to the overflow weir will enter each of the sediment spaces in turn and sediment.
As a further improvement of the utility model, the output end of the acid etching tank is directly connected with the overflow weir, and the input end of the acid etching tank is connected with the overflow weir through a circulating filter pump, so that the acid etching tank and the overflow weir form a primary circulating system.
As a further improvement of the present utility model, in the primary circulation system, the precipitate generated in the acid etching tank is discharged into the overflow weir together with the tank liquid, and then the precipitate is precipitated to the bottom of the overflow weir, and the tank liquid in the overflow weir is refluxed into the acid etching tank by the circulation filter pump.
As a further development of the utility model, each of said discharge openings in the bottom of each of said weirs is provided with valve means for discharging sediment.
As a further development of the utility model, the crystallization sedimentation tank is connected to the inlet of the filter press by a rear pump, while the outlet of the filter press is connected to the overflow weir and forms a secondary circulation system.
As a further improvement of the utility model, the acid etching tank is internally provided with an air stirring pipeline, a water pipeline is added in the air stirring pipeline, and the air stirring pipeline is dredged through the water pipeline.
Compared with the prior art, the utility model has the following beneficial effects:
1. By the arrangement of the primary circulation system and the secondary circulation system, the sediment generated in the acid etching tank can be automatically and continuously discharged outwards in the continuous production process, so that the purpose of continuous production of the acid etching tank can be realized, and manual cleaning is not required by stopping the line regularly, thereby not only improving the production efficiency, but also solving the problem that the strong corrosiveness of ammonium bifluoride contained in the sediment is harmful to staff bodies during manual cleaning;
2. In the whole circulation system, the tank liquor can be repeatedly utilized, so that the utilization rate of the tank liquor is improved, the resource waste is reduced, and the cost is further reduced;
3. The overflow weir is divided by the plurality of baffle plates to form a plurality of independent sedimentation spaces, wherein the heights of the plurality of baffle plates gradually increase or gradually decrease gradually to form liquid level differences between the sedimentation spaces and form a hierarchical overflow structure, the tank liquor sequentially enters the sedimentation spaces to carry out sedimentation, and due to the existence of the liquid level differences, the flow velocity in the overflow weir is slowed down, and the sedimentation in the tank liquor is continuously settled by uninterrupted circulation, so that the effect of purifying sedimentation is achieved.
Drawings
FIG. 1 is a schematic diagram of an in-line treatment system for acid etch tank precipitates of the present utility model.
In the figure, 100, an acid etching tank; 110. a circulating filter pump;
200. An overflow weir; 210. a partition plate; 220. a precipitation space; 221. a valve device;
300. A crystallization sedimentation tank; 310. a rear pump;
400. And (3) a filter press.
Detailed Description
The following are specific embodiments of the present utility model and the technical methods of the present utility model will be further described with reference to the accompanying drawings, but the present utility model is not limited to these embodiments.
As shown in fig. 1, the present utility model provides an on-line treatment system for acid etch tank precipitate, comprising:
an acid etching tank 100 for etching a product;
An overflow weir 200 connected with the acid etching tank 100 and forming a first-stage circulation system therebetween, wherein in the first-stage circulation system, a tank liquor is recycled between the acid etching tank 100 and the overflow weir 200, and sediment in the tank liquor is deposited at the bottom of the overflow weir 200 in a circulating and overflow manner;
A crystallization pond 300 positioned at the bottom of the overflow weir 200, wherein the overflow weir 200 can directly discharge the precipitate into the crystallization pond 300 for treatment and form crystals;
the filter press 400 is connected with the crystallization sedimentation tank 300, a secondary circulation system is formed between the two, crystals produced by the crystallization sedimentation tank 300 are compressed by the filter press 400 and separated into sludge and concentrated solution, the sludge is discharged outwards and is subjected to hazardous waste treatment, and the concentrated solution flows back into the overflow weir 200 for recycling.
Through the arrangement of the first-stage circulation system and the second-stage circulation system, the sediment generated in the acid etching tank 100 can be automatically and continuously discharged outwards in the continuous production process of the acid etching tank 100, so that the purpose of continuous production of the acid etching tank 100 can be realized, and manual cleaning is not required by stopping the line regularly, thereby not only improving the production efficiency, but also solving the problem that the strong corrosiveness of ammonium bifluoride contained in the sediment is harmful to the staff body during manual cleaning.
In addition, in the whole circulation system, the tank liquor can be repeatedly utilized continuously, so that the utilization rate of the tank liquor is improved, the resource waste is reduced, and the cost is further reduced.
Preferably, the inner space of the overflow weir 200 is partitioned by a plurality of partitions 210 and forms separate settling spaces 220, each settling space 220 having an independent discharge port through which the sediment settled in each settling space 220 is discharged outward, respectively.
It should be noted that, in the present embodiment, the heights of the plurality of baffles 210 are gradually increased or gradually decreased, so that a liquid level difference is formed between the respective sedimentation spaces 220, and the overflow weir 200 forms a hierarchical overflow structure;
The hierarchical overflow structure means that the sediment discharged from the acid etching tank 100 into the overflow weir 200 will sequentially enter each sediment space 220 and be settled, and the flow velocity in the overflow weir 200 is slowed down due to the existence of the liquid level difference, and the sediment in the tank liquid is continuously settled down through uninterrupted circulation, thereby playing the role of purifying the sediment.
Preferably, the output end of the acid tank 100 is directly connected to the overflow weir 200, while the input end of the acid tank 100 is connected to the overflow weir 200 through the circulation filter pump 110, so that the acid tank 100 and the overflow weir 200 form the above-mentioned primary circulation system, specifically, in the primary circulation system, the precipitate generated in the acid tank 100 is discharged into the overflow weir 200 along with the tank liquor, and then the precipitate is deposited to the bottom of the overflow weir 200, and the tank liquor in the overflow weir 200 is refluxed to the acid tank 100 through the circulation filter pump 110.
Preferably, each discharge port at the bottom of each weir 200 is provided with a valve means 221 for discharging the precipitate, and when the precipitate in the weir 200 has accumulated to a certain amount, the circulation filtration pump 110 is turned off, each valve means 221 is opened, all the precipitate is discharged to the crystallization precipitation tank 300, and then the valve means 221 is turned off and the circulation filtration pump 110 is turned on again.
Preferably, the crystallization and sedimentation tank 300 is connected with the input end of the filter press 400 through the rear pump 310, and meanwhile, the output end of the filter press 400 is connected with the overflow weir 200 to form the secondary circulation system, in the secondary circulation system, after a certain amount of sediment in the crystallization and sedimentation tank 300 is reached, the filter press 400 and the sludge conveying pump are started to convey the sediment to the filter press 400 to be compressed into sludge and concentrated solution, wherein the sludge is discharged outwards and subjected to hazardous waste treatment, and the concentrated solution is conveyed to the overflow weir 200 for reuse.
Preferably, the acid etching tank 100 is provided with an air stirring pipeline (not shown in the figure), and a water pipeline (not shown in the figure) is added in the air stirring pipeline, and the air stirring pipeline is dredged through the water pipeline.
In addition, in order to improve corrosion resistance of each device, the circulation filter pump 110 is configured as a corrosion-resistant electric pump, the partition 210 is supported by polypropylene, and the rear pump 310 is configured as a corrosion-resistant pneumatic diaphragm pump.
The technical means disclosed by the scheme of the utility model is not limited to the technical means disclosed by the technical means, and also comprises the technical scheme formed by any combination of the technical features. The foregoing is a specific embodiment of the utility model, it will be appreciated by those skilled in the art that modifications and variations may be made without departing from the principles of the utility model, and such modifications and variations are to be regarded as being within the scope of the utility model.
It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present utility model are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.
Furthermore, descriptions such as those referred to herein as "first," "second," "a," and the like are provided for descriptive purposes only and are not to be construed as indicating or implying a relative importance or an implicit indication of the number of features being indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the present utility model, unless specifically stated and limited otherwise, the terms "connected," "affixed," and the like are to be construed broadly, and for example, "affixed" may be a fixed connection, a removable connection, or an integral body; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
In addition, the technical solutions of the embodiments of the present utility model may be combined with each other, but it is necessary to be based on the fact that those skilled in the art can implement the technical solutions, and when the technical solutions are contradictory or cannot be implemented, the combination of the technical solutions should be considered as not existing, and not falling within the scope of protection claimed by the present utility model.
Claims (9)
1. An on-line treatment system for acid etch tank precipitates, comprising:
an acid etching tank for etching the product;
the overflow weir is connected with the acid etching tank, a first-stage circulating system is formed between the overflow weir and the acid etching tank, tank liquor is recycled between the acid etching tank and the overflow weir, and sediment in the tank liquor is deposited at the bottom of the overflow weir in a circulating and overflow mode;
The crystallization sedimentation tank is positioned at the bottom of the overflow weir, and the overflow weir can directly discharge sediment into the crystallization sedimentation tank for treatment and form crystals;
The filter press is connected with the crystallization sedimentation tank, a secondary circulation system is formed between the two crystallization sedimentation tank, crystals produced by the crystallization sedimentation tank are compressed into sludge and concentrated solution through the filter press, the sludge is discharged outwards and is subjected to hazardous waste treatment, and the concentrated solution flows back to the overflow weir for recycling.
2. An on-line acid etch tank sludge disposal system as claimed in claim 1 wherein said weir internal space is divided by a plurality of baffles and forms separate sludge spaces, each sludge space having an independent discharge.
3. An on-line treatment system for acid etch tank deposits according to claim 2, wherein a plurality of said baffles are stepped up or down in height so that a level difference is formed between each of the deposition spaces, wherein said weirs form a hierarchical overflow structure.
4. An on-line treatment system for acid etch tank precipitations as defined in claim 3, wherein said precipitations discharged from said acid etch tank into said overflow weirs are sequentially introduced into each of said precipitations spaces and precipitated.
5. An on-line treatment system for acid etch tank precipitates as recited in claim 1, wherein an output end of said acid etch tank is directly connected to said overflow weir, and an input end of said acid etch tank is connected to said overflow weir by a circulating filter pump such that said acid etch tank and said overflow weir form said primary circulation system.
6. An on-line treatment system for acid etch tank sediments as claimed in claim 5, wherein in a primary circulation system, sediments generated in said acid etch tank are discharged into said overflow weir along with tank liquor, and then sediments are deposited at the bottom of said overflow weir, and tank liquor in said overflow weir is returned to said acid etch tank by said circulation filter pump.
7. An on-line treatment system for acid etch tank sludge as claimed in claim 2 wherein each of said discharge openings in the bottom of each of said weirs is provided with valve means for discharging sludge.
8. An on-line treatment system for acid etch tank precipitates as recited in claim 1, wherein said crystallization and precipitation tank is connected to an input of said filter press by a rear pump, while an output of said filter press is connected to said overflow weir and forms a secondary circulation system as described above.
9. The on-line treatment system for acid etch tank sediments of claim 1, wherein an air stirring pipeline is arranged in the acid etch tank, a water pipeline is added in the air stirring pipeline, and the air stirring pipeline is dredged through the water pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322328846.5U CN220942351U (en) | 2023-08-29 | 2023-08-29 | Online treatment system for acid etching tank sediment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322328846.5U CN220942351U (en) | 2023-08-29 | 2023-08-29 | Online treatment system for acid etching tank sediment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220942351U true CN220942351U (en) | 2024-05-14 |
Family
ID=90977903
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322328846.5U Active CN220942351U (en) | 2023-08-29 | 2023-08-29 | Online treatment system for acid etching tank sediment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220942351U (en) |
-
2023
- 2023-08-29 CN CN202322328846.5U patent/CN220942351U/en active Active
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