CN213924392U - Recovery processing device of nickeliferous waste liquid - Google Patents
Recovery processing device of nickeliferous waste liquid Download PDFInfo
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- CN213924392U CN213924392U CN202022813705.9U CN202022813705U CN213924392U CN 213924392 U CN213924392 U CN 213924392U CN 202022813705 U CN202022813705 U CN 202022813705U CN 213924392 U CN213924392 U CN 213924392U
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- adsorption tower
- resin adsorption
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- ionic resin
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Abstract
The utility model relates to a recovery processing device of nickeliferous waste liquid, including nickeliferous waste liquid basin, it connects gradually first adjustment tank, first filter, nickel hydroxide collecting vessel is connected to first filter, still connect parallelly connected first ionic resin adsorption tower and the second ionic resin adsorption tower who sets up, first ionic resin adsorption tower and second ionic resin adsorption tower all are in charge of the pipeline and connect gradually the second adjustment tank, the evaporation concentrator, the second filter, the waste collection bucket, the circulation structure is constituteed with the second filter to the evaporation concentrator, first ionic resin adsorption tower and second ionic resin adsorption tower all still are in charge of the pipeline and connect gradually the electrolysis trough, the reservoir, the export of reservoir and the inlet pipeline of first ionic resin adsorption tower and second ionic resin adsorption tower are connected. The utility model discloses a recovery processing device of nickeliferous waste liquid has that treatment effeciency is high, the treatment cost is low, realizes the continuous operation and handles, satisfies emission standard, realizes the recycle of nickel resource simultaneously.
Description
Technical Field
The utility model belongs to the technical field of waste water treatment, concretely relates to recovery processing device of nickeliferous waste liquid.
Background
The cleaning section of production lines such as electronickelling and chemical nickel plating in PCB and electroplating industry often can produce a large amount of nickel-containing waste liquid, according to "electroplating pollutant discharge standard" (GB 91200-2008), nickel belongs to first class pollutant, and direct discharge can cause the pollution to the environment, requires to handle in workshop or production facility discharge port and reach standard, and the processing cost of nickel-containing waste liquid that conventional treatment process produced is as hazardous waste is higher simultaneously.
The nickel-containing waste liquid is treated by acid-base neutralization mud pressing, but the nickel-containing mud generated after neutralization and pressure pressing is determined as a solid dangerous object, a company or a mechanism with solid dangerous qualification for operation needs to be entrusted to carry out paid operation, so that the treatment cost is greatly increased, and the metal nickel cannot be recycled, thereby causing resource waste.
At present, chemical precipitation, ion exchange, reverse osmosis and the like are generally adopted at home and abroad to treat the nickel-containing waste liquid and recover nickel resources, wherein the chemical precipitation cannot completely remove nickel, and the treatment effect cannot reach the standard easily; the nickel-containing waste liquid is adsorbed by the ion exchange method, so that the nickel-containing waste liquid is easily saturated, the nickel-containing waste liquid can be continuously adsorbed after regeneration and cannot be continuously used, and the waste liquid after ion adsorption is sent to a sewage station without being treated, so that a large amount of waste liquid is generated, and the treatment difficulty is high; the reverse osmosis method has high equipment investment cost, large occupied area, low nickel concentrated solution obtained by treatment and high subsequent treatment cost.
Chinese patent CN210529005U discloses a nickel recovery system in nickel-containing waste liquid, the recovery system includes: the nickel-containing waste liquid collecting barrel is filled with the nickel-containing waste liquid in the nickel-containing waste liquid collecting barrel, nickel ions in the nickel-containing waste liquid entering the resin adsorption tank are adsorbed into nickel-adsorbing resin, the adsorbed waste liquid is conveyed into the waste liquid storage barrel, then an acid solution in the backwashing barrel is conveyed into the resin adsorption tank to obtain a nickel-containing acid solution, and finally the nickel-containing acid solution is conveyed into the electrolytic tank for electrolysis operation to obtain metallic nickel; however, the patent has the following disadvantages: (1) waste liquid after the ion resin adsorption is directly stored in a waste liquid storage barrel without being treated, a large amount of waste liquid is generated, and the treatment difficulty is high; (2) after the adsorption resin is saturated, acid in the backwashing barrel is conveyed to a resin adsorption tank to regenerate the resin, so that the recovery process must be stopped, and the resin cannot be continuously used; (3) only the nickel-containing waste liquid is treated by using an ion exchange method, and the treatment is not easy to reach the standard.
Disclosure of Invention
The utility model aims at providing a recovery processing device of nickeliferous waste liquid has that treatment effeciency is high, the processing cost is low, realizes the continuous operation and handles, and the emission of processing satisfies emission standard, realizes the recycle of nickel resource simultaneously.
The utility model provides a technical scheme that above-mentioned problem adopted does: a nickel-containing waste liquid recovery processing device comprises a nickel-containing waste liquid storage tank, the nickel-containing waste liquid storage tank is connected with a first filter through a first adjusting tank, the first filter is respectively connected with a nickel hydroxide collecting barrel and an ionic resin adsorption tower, the ion resin adsorption tower is a first ion resin adsorption tower and a second ion resin adsorption tower which are connected in parallel, one outlets at the bottom ends of the first ion resin adsorption tower and the second ion resin adsorption tower are sequentially connected with a second regulating tank, an evaporation concentrator, a second filter and a waste collecting barrel through pipelines, the evaporation concentrator and the second filter form a circulating structure, the other outlets at the bottom ends of the first ion resin adsorption tower and the second ion resin adsorption tower are connected with an electrolytic tank and a liquid storage tank in sequence through pipelines, and the outlet of the liquid storage tank is connected with inlet pipelines of the first ion resin adsorption tower and the second ion resin adsorption tower.
Preferably, the first ion resin adsorption tower and the second ion resin adsorption tower are both provided with a dilute hydrochloric acid feed port and a pure water feed port.
Preferably, the first adjusting tank is connected with an alkali liquor tank.
Preferably, the first adjusting tank and the second adjusting tank are respectively provided with a stirring device.
Preferably, the circulation structure formed by the evaporation concentrator and the second filter is specifically as follows: the outlet of the evaporation concentrator is connected with the inlet of the second filter, and the outlet of the second filter is connected with the inlet of the evaporation concentrator.
Preferably, the electrolytic cell comprises a cathode chamber and an anode chamber, and the cathode chamber and the anode chamber are arranged at intervals through a separation membrane.
Compared with the prior art, the utility model has the advantages of:
(1) the utility model discloses a parallel connection's first ionic resin adsorption tower and second ionic resin adsorption tower, two ionic resin adsorption towers adsorb in turn, regenerate, need not to suspend the recovery processing process, and the continuous operation has been realized to the recovery processing technology of nickeliferous waste liquid, has reduced treatment cost.
(2) Compare among the prior art waste liquid after the ion resin adsorption directly leave in the waste liquid storage bucket untreated, the utility model discloses pass through evaporative concentration, second filter-pressing with the waste liquid after the ion resin adsorption tower adsorption, the filtrating of filtration returns evaporative concentration again to evaporative concentration ware, has effectively realized the minimizing of waste liquid, greatly reduced the handling capacity of final discarded object, and can not produce secondary pollution.
(3) The utility model combines the adjusting tank (the first adjusting tank) and the ion resin adsorption tower together, namely combines the chemical precipitation method and the ion adsorption method to treat the nickel-containing waste liquid, so that the nickel-containing waste liquid is fully treated and meets the discharge standard; in addition, the nickelic acid solution is electrolyzed by the electrolytic bath, so that the metallic nickel with higher purity can be obtained, the waste is changed into valuable, and the recycling of the metallic nickel is realized.
Drawings
Fig. 1 is a schematic structural diagram of a recovery processing device for nickel-containing waste liquid in an embodiment of the present invention.
Wherein: 1 is a nickel-containing waste liquid storage tank, 2 is a first adjusting tank, 3 is a first filter, 4 is a nickel hydroxide collecting tank, 5-1 is a first ionic resin adsorption tower, 5-2 is a second ionic resin adsorption tower, 6 is a second adjusting tank, 7 is an evaporation concentrator, 8 is a second filter, 9 is a waste collecting tank, 10 is an electrolytic tank, and 11 is a liquid storage tank.
Detailed Description
The present invention will be described in further detail with reference to the following embodiments.
As shown in fig. 1, a schematic structural diagram of a recovery processing apparatus for nickel-containing waste liquid in this embodiment.
The utility model provides a recovery processing device of nickeliferous waste liquid, recovery processing device includes nickeliferous waste liquid basin 1, nickeliferous waste liquid basin 1 is connected with first filter 3 through first adjustment tank 2, first adjustment tank 2 is connected with the lye tank, nickel hydroxide collecting vessel 4, ionic resin adsorption tower are connected respectively to first filter 3, the ionic resin adsorption tower is parallel connection's first ionic resin adsorption tower 5-1 and second ionic resin adsorption tower 5-2, a bottom export of first ionic resin adsorption tower 5-1 and second ionic resin adsorption tower 5-2 all connects gradually second adjustment tank 6, evaporative concentrator 7, second filter 8, waste collection bucket 9 through the pipeline, evaporative concentrator 7 with second filter 8 constitutes cyclic structure, another export in bottom of first ionic resin adsorption tower 5-1 and second ionic resin adsorption tower 5-2 all connects gradually through the pipeline An electrolytic tank 10 and a liquid storage tank 11 are connected, and an outlet of the liquid storage tank 11 is connected with inlet pipelines of the first ionic resin adsorption tower 5-1 and the second ionic resin adsorption tower 5-2.
Wherein, the first ion resin adsorption tower 5-1 and the second ion resin adsorption tower 5-2 are both provided with a dilute hydrochloric acid feed port and a pure water feed port; stirring devices are respectively arranged in the first adjusting tank 2 and the second adjusting tank 6; the circulation structure formed by the evaporation concentrator 7 and the second filter 8 is specifically as follows: the outlet of the evaporation concentrator 7 is connected with the inlet of the second filter 8, and the outlet of the second filter 8 is connected with the inlet of the evaporation concentrator 7; the electrolytic cell 10 includes a cathode chamber and an anode chamber, and the cathode chamber and the anode chamber are arranged at an interval by a separation membrane.
The operation of this embodiment is described in detail below with reference to the accompanying drawings:
firstly, conveying the nickel-containing waste liquid in a nickel-containing waste liquid storage tank 1 to a first regulating tank 2 through a pump and a pipeline to generate nickel hydroxide precipitate; the method comprises the steps of enabling nickel waste liquid containing nickel hydroxide to enter a first filter 3 for solid-liquid separation, enabling the nickel hydroxide to enter a nickel hydroxide collecting barrel 4, enabling other nickel-containing waste liquid to enter a first ionic resin adsorption tower 5-1, adsorbing residual nickel ions in the nickel-containing waste liquid into resin, conveying the adsorbed waste liquid to a second adjusting tank 6 through a pump and a pipeline to adjust the pH value to be neutral, sequentially evaporating and concentrating the waste liquid through an evaporation concentrator 7, performing pressure filtration through a second filter 8, returning filtrate generated by pressure filtration to the evaporation concentrator 7 for continuous evaporation, and storing sludge generated by pressure filtration in a waste collecting barrel 9.
In the process of ion adsorption of the nickel-containing waste liquid, after the first ionic resin adsorption tower 5-1 is saturated in adsorption, other nickel-containing waste liquid enters a second ionic resin adsorption tower 5-2, when the second ionic resin adsorption tower 5-2 starts to perform adsorption work, the first ion resin adsorption tower 5-1 is regenerated, dilute hydrochloric acid is added through a dilute hydrochloric acid feed port in sequence, pure water is added through a pure water feed port, hydrochloric acid and pure water are used for carrying out analytic regeneration on the adsorption resin to obtain metal nickel ion concentrated solution, finally the metal nickel ion concentrated solution is conveyed into an electrolytic bath 10 for electrolysis, and metal nickel with higher purity is obtained through deposition, and the solution which does not contain nickel ions after the electrolysis in the electrolytic tank 10 is conveyed into a liquid storage tank 11, and the solution in the liquid storage tank 11 is circulated to the first ion resin adsorption tower 5-1 and the second ion resin adsorption tower 5-2 for continuous use.
In addition, after the regeneration of the first ion resin adsorption tower 5-1 is completed, the first ion resin adsorption tower is in a state of waiting for adsorption, when the second ion resin adsorption tower 5-2 is saturated in adsorption, the first ion resin adsorption tower 5-1 performs adsorption, the second ion resin adsorption tower 5-2 performs regeneration, and the two ion resin adsorption towers alternately perform adsorption.
In addition to the above embodiments, the present invention also includes other embodiments, and all technical solutions formed by equivalent transformation or equivalent replacement should fall within the protection scope of the claims of the present invention.
Claims (6)
1. The utility model provides a recovery processing device of nickeliferous waste liquid which characterized in that: the recovery processing device comprises a nickel-containing waste liquid storage tank (1), the nickel-containing waste liquid storage tank (1) is connected with a first filter (3) through a first adjusting tank (2), the first filter (3) is respectively connected with a nickel hydroxide collecting barrel (4) and an ionic resin adsorption tower, the ionic resin adsorption tower is a first ionic resin adsorption tower (5-1) and a second ionic resin adsorption tower (5-2) which are connected in parallel, one outlet at the bottom end of the first ionic resin adsorption tower (5-1) and one outlet at the bottom end of the second ionic resin adsorption tower (5-2) are sequentially connected with a second adjusting tank (6), an evaporation concentrator (7), a second filter (8) and a waste collecting barrel (9) through pipelines, the evaporation concentrator (7) and the second filter (8) form a circulating structure, and the other outlet at the bottom end of the first ionic resin adsorption tower (5-1) and the other outlet of the second ionic resin adsorption tower (5-2) Are connected with an electrolytic tank (10) and a liquid storage tank (11) in sequence through pipelines, and the outlet of the liquid storage tank (11) is connected with the inlet pipelines of the first ion resin adsorption tower (5-1) and the second ion resin adsorption tower (5-2).
2. The apparatus according to claim 1, characterized in that: the first ion resin adsorption tower (5-1) and the second ion resin adsorption tower (5-2) are both provided with a dilute hydrochloric acid feed port and a pure water feed port.
3. The apparatus according to claim 1, characterized in that: the first adjusting tank (2) is connected with an alkali liquor tank.
4. The apparatus according to claim 1, characterized in that: and stirring devices are respectively arranged in the first adjusting tank (2) and the second adjusting tank (6).
5. The apparatus according to claim 1, characterized in that: the evaporation concentrator (7) and the second filter (8) form a circulating structure which is characterized in that: the outlet of the evaporation concentrator (7) is connected with the inlet of the second filter (8), and the outlet of the second filter (8) is connected with the inlet of the evaporation concentrator (7).
6. The apparatus according to claim 1, characterized in that: the electrolytic cell (10) comprises a cathode chamber and an anode chamber, wherein the cathode chamber and the anode chamber are arranged at intervals through a separation membrane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022813705.9U CN213924392U (en) | 2020-11-30 | 2020-11-30 | Recovery processing device of nickeliferous waste liquid |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202022813705.9U CN213924392U (en) | 2020-11-30 | 2020-11-30 | Recovery processing device of nickeliferous waste liquid |
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| CN213924392U true CN213924392U (en) | 2021-08-10 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115710644A (en) * | 2022-12-02 | 2023-02-24 | 南通柏源汽车零部件有限公司 | Recovery method of plastic electroplating multilayer nickel |
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- 2020-11-30 CN CN202022813705.9U patent/CN213924392U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115710644A (en) * | 2022-12-02 | 2023-02-24 | 南通柏源汽车零部件有限公司 | Recovery method of plastic electroplating multilayer nickel |
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