CN205443457U - Freezing crystallization process system - Google Patents
Freezing crystallization process system Download PDFInfo
- Publication number
- CN205443457U CN205443457U CN201521123091.4U CN201521123091U CN205443457U CN 205443457 U CN205443457 U CN 205443457U CN 201521123091 U CN201521123091 U CN 201521123091U CN 205443457 U CN205443457 U CN 205443457U
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- CN
- China
- Prior art keywords
- freezing
- anticorrosion
- filter vat
- hot water
- acid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Preventing Corrosion Or Incrustation Of Metals (AREA)
- Removal Of Specific Substances (AREA)
Abstract
The utility model relates to a freezing crystallization process system, including concentration control pond, freezing crystallization kettle, refrigerating unit, anticorrosive filter vat and anticorrosive water jet vacuum unit, freezing crystallization kettle includes feed inlet, discharge gate and circulating line, and the concentration control pond is passed through charge -in pipeline and is connected with the feed inlet of freezing crystallization kettle, circulation pipe setup cold water entry and hot water export, refrigerating unit passes through cold water and goes into the union coupling cold water entry, refrigerating unit pass through hot water return pipe and connect the hot water export, anticorrosive filter vat set up in the discharge gate below of freezing crystallization kettle. Freezing through adding the pickling spent acid freezing crystallization kettle, retrieving through anticorrosive filter vat, effective recycling utilizes the feSO4 in the pickling spent acid, has practiced thrift waste water spent acid treatment cost, has reduced the pollution to the environment to carry out the reutilization to the resource, do benefit to the environmental protection construction greatly.
Description
Technical field
This utility model relates to waste acidity recovery technical field, particularly relates to a kind of Freeze crystallization system.
Background technology
Steel pipe's production enterprise is during producing steel pipe, due to technological requirement, is inevitably generated cleaning waste water and spent acid.Generally, generation is cleaned waste water 1 ton, 0.1 ton of spent acid by steel pipe per ton.The major pollutants cleaned in waste water are COD and Fe2+, spent acid is mainly composed of the FeSO of 5% sulphuric acid and 300mg/L4If, this waste water and spent acid outer the most treated row, it will cause serious environmental pollution and severe social influence.And FeSO4It is again excellent flocculant and there is sterilization.Heavy-metal ion removal and the effect of decolouring, can make water purification agent, chemical fertilizer, feed additive etc., and application is extremely wide, and therefore, reply spent acid recycles.
In prior art, the recovery process to spent acid is complicated, and equipment investment is big, it is difficult to application.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of Freeze crystallization system, and device structure small investment, low cost and corresponding technique are simple, it is easy to safeguard.
For solving above-mentioned technical problem, this utility model relates to a kind of Freeze crystallization system, including concentration regulating reservoir, freezing and crystallizing still, refrigeration unit, anticorrosion filter vat and anticorrosion water jet vacuum pump set；Described concentration regulating reservoir connection acid-washing waste acid enters pipe and industrial sulphuric acid enters pipe, and described freezing and crystallizing still includes charging aperture, discharging opening and circulating line, and described concentration regulating reservoir is connected with the charging aperture of described freezing and crystallizing still by feed pipe；Described circulating line arranges cold water inlet and hot water outlet, and described refrigeration unit enters pipe by cold water and connects described cold water inlet, and described refrigeration unit connects described hot water outlet by hot water return pipe；Described anticorrosion water jet vacuum pump set connects described anticorrosion filter vat by pipeline, and described anticorrosion filter vat is arranged at below the discharging opening of described freezing and crystallizing still.
As preferred version of the present utility model, inside described freezing and crystallizing still, shaft is set.
As preferred version of the present utility model, filter bag is set inside described anticorrosion filter vat and is positioned at the anticorrosion flase floor below filter bag.
As preferred version of the present utility model, described freezing and crystallizing still and anticorrosion filter vat are respectively provided with reuse acid outlet.
The beneficial effects of the utility model are: carry out freezing by acid-washing waste acid adds freezing and crystallizing still, reclaim through anticorrosion filter vat, the FeSO in effective recycling acid-washing waste acid4, saved wastewater and waste acid processing cost, reduced the pollution to environment, and resource is carried out secondary utilization, the most beneficially construction of environmental protection.
Accompanying drawing explanation
Fig. 1 is this utility model overall structure schematic diagram.
Description of reference numerals
1-refrigeration unit, 2-cold water enters pipe, 3-hot water return pipe, 4-freezing and crystallizing still, 5-circulating line, 6-hot water outlet, 7-cold water inlet, 8-anticorrosion filter vat, 9-anticorrosion flase floor, 10-reuse acid exports, 11-anticorrosion water jet vacuum pump set, 12-charging aperture, 13-reuse acid exports, 14-concentration regulating reservoir, 15-acid-washing waste acid enters pipe, and 16-industry sulfur enters pipe, 17-feed pipe, 18-discharging opening, 19-shaft.
Detailed description of the invention
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, this utility model is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain this utility model, is not used to limit this utility model.It should be noted that the word "front", "rear" used in describing below, "left", "right", "up" and "down" refer to the direction in accompanying drawing, word " interior " and " outward " refer respectively to the direction towards or away from particular elements geometric center.
Seeing Fig. 1, this utility model relates to a kind of Freeze crystallization system, and including concentration regulating reservoir 14, freezing and crystallizing still 4, refrigeration unit 1, anticorrosion filter vat 8 and anticorrosion water jet vacuum pump set 11, freezing and crystallizing still 4 is internal arranges shaft 19.
Concentration regulating reservoir 14 connects acid-washing waste acid and enters pipe 15 and industrial sulphuric acid enters pipe 16, after acid-washing waste acid enters concentration regulating reservoir 14, carries out Fe by adding industrial sulphuric acid2+With the combination of sulphuric acid, form FeSO4.Freezing and crystallizing still 4 includes that charging aperture 12, discharging opening 18 and circulating line 5, concentration regulating reservoir 14 are connected with the charging aperture 12 of freezing and crystallizing still 4 by feed pipe 17.Circulating line 5 arranges cold water inlet 7 and hot water outlet 6, and refrigeration unit 1 enters pipe 2 by cold water and connects cold water inlet 7, and refrigeration unit 1 connects hot water outlet 6 by hot water return pipe 3.Enter the acid solution chilled crystallization FeSO of freezing and crystallizing still4Crystal, does not separates out the acid solution of crystal through reuse acid outlet return to concentration regulating reservoir 14.
Anticorrosion filter vat 8 is arranged at below the discharging opening 18 of freezing and crystallizing still 4, and anticorrosion water jet vacuum pump set 11 connects anticorrosion filter vat 8 by pipeline, and anticorrosion filter vat 8 is internal to be arranged filter bag (not shown) and is positioned at the anticorrosion flase floor 9 below filter bag.The crystal separated out is stayed inside filter bag, and residue acid solution is back to concentration regulating reservoir 14 by the reuse acid outlet 10 of anticorrosion filter vat 8.
Carrying out freezing by acid-washing waste acid being added freezing and crystallizing still, reclaiming through anticorrosion filter vat, the FeSO in effective recycling acid-washing waste acid4, saved wastewater and waste acid processing cost, reduced the pollution to environment, and carry out secondary utilization, the most beneficially construction of environmental protection with resource.
It is above better embodiment of the present utility model, but protection domain of the present utility model is not limited to this.Any those of ordinary skill in the art in the technical scope disclosed by this utility model, the conversion expected without creative work or replacement, all should contain within protection domain of the present utility model.Protection domain the most of the present utility model should be as the criterion with the protection domain that claim is limited.
Claims (4)
1. a Freeze crystallization system, it is characterised in that: include concentration regulating reservoir, freezing and crystallizing still, refrigeration unit, anticorrosion filter vat and anticorrosion water jet vacuum pump set；Described concentration regulating reservoir connection acid-washing waste acid enters pipe and industrial sulphuric acid enters pipe, and described freezing and crystallizing still includes charging aperture, discharging opening and circulating line, and described concentration regulating reservoir is connected with the charging aperture of described freezing and crystallizing still by feed pipe；Described circulating line arranges cold water inlet and hot water outlet, and described refrigeration unit enters pipe by cold water and connects described cold water inlet, and described refrigeration unit connects described hot water outlet by hot water return pipe；Described anticorrosion water jet vacuum pump set connects described anticorrosion filter vat by pipeline, and described anticorrosion filter vat is arranged at below the discharging opening of described freezing and crystallizing still.
2. Freeze crystallization system as claimed in claim 1, it is characterised in that: inside described freezing and crystallizing still, shaft is set.
3. Freeze crystallization system as claimed in claim 2, it is characterised in that: filter bag is set inside described anticorrosion filter vat and is positioned at the anticorrosion flase floor below filter bag.
4. Freeze crystallization system as claimed in claim 3, it is characterised in that: described freezing and crystallizing still and anticorrosion filter vat are respectively provided with reuse acid outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521123091.4U CN205443457U (en) | 2015-12-31 | 2015-12-31 | Freezing crystallization process system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521123091.4U CN205443457U (en) | 2015-12-31 | 2015-12-31 | Freezing crystallization process system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205443457U true CN205443457U (en) | 2016-08-10 |
Family
ID=56572846
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521123091.4U Expired - Fee Related CN205443457U (en) | 2015-12-31 | 2015-12-31 | Freezing crystallization process system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205443457U (en) |
-
2015
- 2015-12-31 CN CN201521123091.4U patent/CN205443457U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160810 Termination date: 20161231 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |