CN215560688U - Ferric chloride etching solution regeneration equipment - Google Patents
Ferric chloride etching solution regeneration equipment Download PDFInfo
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- CN215560688U CN215560688U CN202121009461.7U CN202121009461U CN215560688U CN 215560688 U CN215560688 U CN 215560688U CN 202121009461 U CN202121009461 U CN 202121009461U CN 215560688 U CN215560688 U CN 215560688U
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- Prior art keywords
- tank
- oxidation
- waste liquid
- etching
- cathode
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- 238000005530 etching Methods 0.000 title claims abstract description 64
- 238000011069 regeneration method Methods 0.000 title claims abstract description 20
- 230000008929 regeneration Effects 0.000 title claims abstract description 16
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 title abstract description 19
- 229910021578 Iron(III) chloride Inorganic materials 0.000 title abstract description 14
- 239000007788 liquid Substances 0.000 claims abstract description 47
- 239000002699 waste material Substances 0.000 claims abstract description 47
- 230000003647 oxidation Effects 0.000 claims abstract description 44
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 44
- 239000011347 resin Substances 0.000 claims abstract description 25
- 229920005989 resin Polymers 0.000 claims abstract description 25
- 238000004519 manufacturing process Methods 0.000 claims abstract description 19
- 150000002500 ions Chemical class 0.000 claims description 31
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 9
- FBAFATDZDUQKNH-UHFFFAOYSA-M iron chloride Chemical compound [Cl-].[Fe] FBAFATDZDUQKNH-UHFFFAOYSA-M 0.000 claims description 8
- 230000001172 regenerating effect Effects 0.000 claims description 7
- 210000003462 vein Anatomy 0.000 claims description 6
- 239000012528 membrane Substances 0.000 claims description 5
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 3
- 150000001450 anions Chemical class 0.000 claims description 3
- 229910002804 graphite Inorganic materials 0.000 claims description 3
- 239000010439 graphite Substances 0.000 claims description 3
- 239000010936 titanium Substances 0.000 claims description 3
- 229910052719 titanium Inorganic materials 0.000 claims description 3
- 229910052799 carbon Inorganic materials 0.000 claims description 2
- 229910001385 heavy metal Inorganic materials 0.000 abstract description 9
- 239000002120 nanofilm Substances 0.000 abstract description 9
- 238000000034 method Methods 0.000 abstract description 6
- 239000000126 substance Substances 0.000 abstract description 6
- 238000005868 electrolysis reaction Methods 0.000 abstract description 4
- 238000000605 extraction Methods 0.000 abstract description 4
- 238000001556 precipitation Methods 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 abstract description 3
- 238000011031 large-scale manufacturing process Methods 0.000 abstract description 3
- 230000033116 oxidation-reduction process Effects 0.000 abstract description 3
- 239000002351 wastewater Substances 0.000 abstract description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 11
- 238000004064 recycling Methods 0.000 description 7
- 229910052742 iron Inorganic materials 0.000 description 4
- 238000006479 redox reaction Methods 0.000 description 4
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000007639 printing Methods 0.000 description 2
- 239000013049 sediment Substances 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910021577 Iron(II) chloride Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000005008 domestic process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000005342 ion exchange Methods 0.000 description 1
- NMCUIPGRVMDVDB-UHFFFAOYSA-L iron dichloride Chemical compound Cl[Fe]Cl NMCUIPGRVMDVDB-UHFFFAOYSA-L 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000006722 reduction reaction Methods 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000006228 supernatant Substances 0.000 description 1
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- Water Treatment By Electricity Or Magnetism (AREA)
- Treatment Of Water By Ion Exchange (AREA)
Abstract
The utility model discloses ferric chloride etching solution regeneration equipment which comprises an etching waste liquid collecting tank, a filter, an ion resin exchange column, a decomplexation groove and an oxidation groove, wherein the etching waste liquid collecting tank, the filter, the ion resin exchange column and the decomplexation groove are sequentially connected, an anode, a cathode and a nano-film are arranged inside the oxidation groove, the nano-film is positioned between the anode and the cathode so as to separate the inside of the oxidation groove into an anode chamber and a cathode chamber, an outlet of the decomplexation groove is connected with an inlet of the cathode chamber of the oxidation groove, and an anode chamber of the oxidation groove is provided with a regenerated solution outlet. The utility model adopts the ion resin exchange and nano-film oxidation-reduction technology, can solve the problems of high production cost, low waste liquid utilization rate and the like in the prior precipitation method, chemical oxidation-regeneration method, extraction method and electrolysis method, can completely treat heavy metal, does not need waste water station treatment, does not generate secondary pollution, does not discharge three wastes, has low production cost, can realize automatic control, and is suitable for large-scale production.
Description
Technical Field
The utility model relates to the technical field of etching solution recycling, in particular to ferric chloride etching solution regeneration equipment.
Background
In the case of difficult printing and machining of metal (such as steel, iron, copper, stainless steel, etc.), the printing and machining process may be performedEtching with ferric trichloride etching solution, wherein fe in the ferric trichloride etching solution is used in the etching process3+Will gradually become fe2+The etching capacity is lost, meanwhile, the total iron content is increased, the yield of the ferric trichloride etching waste liquid is high, heavy metals such as cr, ni, cu, mo, mn, zn and al carried in metal materials enter the waste liquid besides a large amount of fe, the discharge is not up to the standard, and a large amount of iron and the like are used as wastes to cause waste of resources.
At present, domestic methods for recycling ferric trichloride etching waste liquid are more, and can be classified into a precipitation method, a chemical oxidation regeneration method, an extraction method, an electrolysis method and the like, however, the existing equipment for recycling ferric trichloride etching waste liquid has the following defects: the total recycling rate of the waste liquid is low, the regeneration cost and the discharge of solid wastes are increased, and the production and application requirements are difficult to meet.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects in the prior art and provide the regeneration equipment for the ferric chloride etching solution.
In order to achieve the purpose, the utility model provides ferric chloride etching solution regeneration equipment which comprises an etching waste solution collecting tank, a filter, an ion resin exchange column, a decomplexing tank and an oxidation tank, wherein a waste solution inlet connected with etching production equipment is arranged on the etching waste solution collecting tank, a waste solution outlet of the etching waste solution collecting tank is connected with an inlet of the filter, an outlet of the filter is connected with an inlet of the ion resin exchange column, an outlet of the ion resin exchange column is connected with an inlet of the decomplexing tank, an anode, a cathode and a nano membrane are arranged in the oxidation tank, the nano membrane is positioned between the anode and the cathode so as to separate the inside of the oxidation tank into an anode chamber and a cathode chamber, an outlet of the decomplexing tank is connected with an inlet of the cathode chamber of the oxidation tank, and an anode chamber of the oxidation tank is provided with a regeneration solution outlet.
Preferably, the etching waste liquid collecting tank is set as a collecting tank with the volume of 5 tons.
Preferably, the filter is provided with a plurality of active carbon filter elements inside.
Preferably, the ion resin exchange column is configured as an anion resin exchange column.
Preferably, the anode of the oxidation tank is provided as a honeycomb-shaped graphite plate.
Preferably, the cathode of the oxidation tank is a titanium plate.
Preferably, the regeneration liquid outlet of the oxidation tank is directly connected with the etching production equipment, and the regeneration liquid outlet of the oxidation tank is connected with the etching production equipment through a regeneration liquid tank.
Compared with the prior art, the utility model has the beneficial effects that:
the utility model has reasonable structural design, adopts the ion resin exchange and nano-film oxidation-reduction technology, the filter can filter impurities in the etching waste liquid, and the ion resin exchange column can adsorb and deposit heavy metal ions so that the heavy metal ions and Fe2+The method can solve the problems of high production cost, low waste liquid utilization rate and the like in the existing precipitation method, chemical oxidation regeneration method, extraction method and electrolysis method, can completely treat heavy metals, does not need a wastewater station for treatment, does not produce secondary pollution, does not discharge three wastes, has low production cost, can realize automatic control, is suitable for large-scale production, and can meet the practical application requirement of recycling the ferric chloride etching waste liquid.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic structural diagram of an apparatus for regenerating an iron chloride etching solution according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of another ferric chloride etching solution regeneration apparatus provided in an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example one
Referring to fig. 1, an embodiment of the present invention provides a ferric chloride etching solution regeneration apparatus, which includes an etching waste solution collecting tank 2, a filter 3, an ion resin exchange column 4, a decomplexing tank 5, an oxidation tank 6, and the like, and the following describes each component of this embodiment in detail with reference to the accompanying drawings.
As shown in fig. 1, the etching waste liquid collecting tank 2 is provided with a waste liquid inlet connected with the etching production equipment 1, the etching waste liquid generated by the etching production equipment 1 can enter the etching waste liquid collecting tank 2 for storage, a waste liquid outlet of the etching waste liquid collecting tank 2 is connected with an inlet of the filter 3, an outlet of the filter 3 is connected with an inlet of the ion resin exchange column 4, and an outlet of the ion resin exchange column 4 is connected with an inlet of the collateral breaking groove 5.
In the present embodiment, the etching waste liquid collection tank 2 may preferably be provided as a collection tank having a volume of 5 tons. Of course, the volume can be arbitrarily increased or decreased according to actual needs.
In this embodiment, the filter 3 may be preferably provided as a filter having a plurality of activated carbon filter elements disposed therein. In specific implementation, 24 phi 40 × 70mm activated carbon filter elements can be arranged in the filter. The filter 3 can filter impurities in the etching waste liquid.
The ion resin exchange column 4 is a column-shaped vessel for performing an ion exchange reaction, wherein the ion resin exchange column 4 may be preferably configured as a high-efficiency anion resin exchange column of Φ 600 × 1800 mm. The ion resin exchange column 4 is capable of adsorbing and depositing heavy metal ions.
The vein breaking tank 5 and the oxidation tank 6 are connected together, the vein breaking tank 5 can break the complexes in the etching waste liquid, and the waste liquid treated by the vein breaking tank can enter the oxidation tank 6 for oxidation-reduction reaction.
An anode 61, a cathode 62 and a nano-film 63 are arranged in the oxidation tank 6, the nano-film 63 is positioned between the anode 61 and the cathode 62, so that the inside of the oxidation tank 6 is divided into an anode chamber and a cathode chamber, the outlet of the decomplexing tank 5 is connected with the inlet of the cathode chamber of the oxidation tank 6, the anode chamber of the oxidation tank 6 is provided with a regenerated liquid outlet, and the regenerated liquid outlet of the oxidation tank 6 can be directly connected with the etching production equipment 1.
Among them, the nanomembrane 63 can prevent a reversible reaction from occurring at the time of an oxidation-reduction reaction.
Preferably, the anodes 61 of the oxidation tank 6 may be arranged as graphite plates in a dense honeycomb shape with a gap of Φ 5mm, so that the anode polarizability is improved and the corrosion resistance is improved. The cathode 62 of the oxidation tank 6 may be a titanium plate, which has good corrosion resistance and long service life.
During operation, the ion resin exchange column can mix heavy metal ions and Fe in the stainless steel etching waste liquid2+Ions are separated, then the etching waste liquid is subjected to nano film oxidation-reduction reaction in a cathode chamber of an oxidation tank, and Fe3+Reduction of ions to Fe2+Ions, then Fe in the anode chamber of the oxidation tank2+Oxidation of ions to Fe3+Ion and nano membrane in oxidation tank to reach chemical conservation law of charge conservation, proton conservation and material conservation, and regenerated solution (containing only small amount of Fe) obtained by oxidation of anode chamber2+Ions and Cl-1Ions) are output for reuse.
The ferric chloride etching solution regeneration equipment of the embodiment can exchange the stainless steel ferric chloride etching waste liquid through ion resinFiltering heavy metal ions such as cr, ni, cu, mo, mn, zn, etc. in the waste liquid, cleaning the sediments at regular time, and removing the sediments containing fe3+、fe2+The supernatant fluid is led into an oxidation tank, the nano-film in the oxidation tank ensures the law of chemical conservation, and the oxidation-reduction reaction is as follows:
anode: FeCl2+Cl→FeCl3+e
Cathode: HCl → 1/2H2+Cl
The oxidized regenerated etching solution is recovered and can be returned to etching production equipment for recycling, the production cost is reduced, three wastes are not discharged, the reuse rate of the etching solution is high, and metallic iron is separated out from the cathode.
Example two
Referring to fig. 2, a second embodiment of the present invention provides a ferric chloride etching solution regeneration apparatus, which also includes an etching waste solution collecting tank 2, a filter 3, an ion resin exchange column 4, a decomplexing tank 5, an oxidation tank 6, and other devices, and the same points as those in the first embodiment are not repeated, except that: the regenerated liquid outlet of the oxidation tank 6 can be connected with the etching production equipment 1 after passing through the regenerated liquid tank 7, and the regenerated liquid tank 7 can store regenerated liquid.
In conclusion, the utility model has reasonable structural design, adopts the ion resin exchange and nano-film oxidation-reduction technology, can solve the problems of high production cost, low waste liquid utilization rate and the like in the prior precipitation method, chemical oxidation-regeneration method, extraction method and electrolysis method, can completely treat heavy metal, does not need waste water station treatment, does not generate secondary pollution, does not discharge three wastes, has low production cost, can realize automatic control, is suitable for large-scale production, and can meet the practical application requirement of recycling the ferric chloride etching waste liquid.
The above embodiments are preferred embodiments of the present invention, but the present invention is not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be construed as equivalents thereof, and all such changes, modifications, substitutions, combinations, and simplifications are intended to be included in the scope of the present invention.
Claims (7)
1. The utility model provides an iron chloride etching solution regeneration facility which characterized in that: comprises an etching waste liquid collecting tank (2), a filter (3), an ion resin exchange column (4), a vein breaking tank (5) and an oxidation tank (6), wherein a waste liquid inlet connected with an etching production device (1) is arranged on the etching waste liquid collecting tank (2), a waste liquid outlet of the etching waste liquid collecting tank (2) is connected with an inlet of the filter (3), an outlet of the filter (3) is connected with an inlet of the ion resin exchange column (4), an outlet of the ion resin exchange column (4) is connected with an inlet of the vein breaking tank (5), an anode (61), a cathode (62) and a nano membrane (63) are arranged inside the oxidation tank (6), the nano membrane (63) is positioned between the anode (61) and the cathode (62) so as to separate the inside of the oxidation tank (6) into an anode chamber and a cathode chamber, an outlet of the vein breaking tank (5) is connected with an inlet of the cathode chamber of the oxidation tank (6), and the anode chamber of the oxidation tank (6) is provided with a regenerated liquid outlet.
2. The apparatus for regenerating an iron chloride etching solution according to claim 1, characterized in that: the etching waste liquid collecting tank (2) is set to be a collecting tank with the volume of 5 tons.
3. The apparatus for regenerating an iron chloride etching solution according to claim 1, characterized in that: the filter (3) is a filter with a plurality of active carbon filter elements arranged inside.
4. The apparatus for regenerating an iron chloride etching solution according to claim 1, characterized in that: the ion resin exchange column (4) is set as an anion resin exchange column.
5. The apparatus for regenerating an iron chloride etching solution according to claim 1, characterized in that: the anode (61) of the oxidation tank (6) is arranged as a honeycomb-shaped graphite plate.
6. The apparatus for regenerating an iron chloride etching solution according to claim 1, characterized in that: the cathode (62) of the oxidation tank (6) is a titanium plate.
7. The apparatus for regenerating an iron chloride etching solution according to claim 1, characterized in that: and a regenerated liquid outlet of the oxidation tank (6) is directly connected with the etching production equipment (1), or the regenerated liquid outlet of the oxidation tank (6) is connected with the etching production equipment (1) through a regenerated liquid tank (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121009461.7U CN215560688U (en) | 2021-05-12 | 2021-05-12 | Ferric chloride etching solution regeneration equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121009461.7U CN215560688U (en) | 2021-05-12 | 2021-05-12 | Ferric chloride etching solution regeneration equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215560688U true CN215560688U (en) | 2022-01-18 |
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ID=79860306
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121009461.7U Expired - Fee Related CN215560688U (en) | 2021-05-12 | 2021-05-12 | Ferric chloride etching solution regeneration equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215560688U (en) |
-
2021
- 2021-05-12 CN CN202121009461.7U patent/CN215560688U/en not_active Expired - Fee Related
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220118 |
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| CF01 | Termination of patent right due to non-payment of annual fee |