CN204097243U - The process recovery system of stainless steel acid-washing waste liquid - Google Patents
The process recovery system of stainless steel acid-washing waste liquid Download PDFInfo
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- CN204097243U CN204097243U CN201420552292.5U CN201420552292U CN204097243U CN 204097243 U CN204097243 U CN 204097243U CN 201420552292 U CN201420552292 U CN 201420552292U CN 204097243 U CN204097243 U CN 204097243U
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- waste liquid
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- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The utility model relates to a kind of process recovery system of stainless steel acid-washing waste liquid, comprise the storage acid pond connected successively, backwash filter, accurate filter, ion exchange system and embrane method system, described backwash filter is connected with back flushing outlet pipeline, described ion exchange system is connected with regeneration waste liquid pipeline, described back flushing outlet pipeline is connected with the water inlet of regeneration waste liquid pipeline with concentrating waste acid preliminary sedimentation tank, the water outlet of described concentrating waste acid preliminary sedimentation tank is connected with the water-in of heavy metal separating device, the slag notch of heavy metal separating device is connected with the heavy mouth of the charging of pressure filter, also comprise the water outlet with metal separating apparatus, the circulation line that the filtrate outlet of pressure filter is connected, described circulation line is connected in the sour pond of storage.The utility model is for the treatment of stainless steel acid cleaning waste water, and after process, water quality reaches discharging standards, can also be separated simultaneously, make resource be recycled utilization, greatly saved resource water, acid solution with heavy metal ion sub-prime.
Description
Technical field
The utility model relates to a kind of environment protection Waste Water Treatment, especially a kind of process recovery system of stainless steel acid-washing waste liquid.
Background technology
In stainless steel manufactures, in order to remove the oxide skin of the rear steel surface of annealing, generally adopting the nitration mixture be made into by nitric acid and hydrofluoric acid to carry out surface cleaning, being called pickling.Along with the development of Iron And Steel Industry and Surface Processing Industry, the generation of the annual spent pickle liquor in the whole nation and more than hundred ten thousand steres, its pollution hazard is clearly.The main harm of acid-bearing wastewater is hydraulic structure such as corrosion sewer line and Steel Concrete etc., and acid-bearing wastewater infiltrates soil, and the time has been grown and can cause soil property calcification, destroys soil layer loose condition (of surface), thus affects crop growth; When acid-bearing wastewater enters water body, owing to having seized oxygen from water, just destroy the life condition of the microorganism of the self-purification of the self-purification of fish and participation water etc., caused fish kills; Containing heavy metal substances such as chromium in pickling waste waters, excessive chromium has carcinogenesis to human body.
Conventional process pickling waste waters generally adopts limestone vegetation, the method for precipitation processes, and the shortcoming of this treatment process is: the 1 pair of chromium, the waste water that Oil repellent is higher, does not generally reach emission standard by one-level neutralization, settlement treatment; 2 can not effective recycling pickling waste waters, is the significant wastage to resource.
Utility model content
Problem to be solved in the utility model is to provide a kind of process recovery system of stainless steel acid-washing waste liquid, effectively ensures that waste water reaches emission standard, by waste reclaimation, greatly economizes on resources.
In order to solve the problems of the technologies described above, the technical scheme that the utility model adopts is as follows: the process recovery system of stainless steel acid-washing waste liquid, comprise the sour pond of storage, the backwash filter be connected with the sour pond of storage, the accurate filter be connected with backwash filter, the ion exchange system be connected with accurate filter and the embrane method system be connected with ion exchange system, described backwash filter is connected with back flushing outlet pipeline, described ion exchange system is connected with regeneration waste liquid pipeline, described back flushing outlet pipeline is connected with the water inlet of regeneration waste liquid pipeline with concentrating waste acid preliminary sedimentation tank, the water outlet of described concentrating waste acid preliminary sedimentation tank is connected with the water-in of heavy metal separating device, the slag notch of heavy metal separating device is connected with the opening for feed of pressure filter, also comprise the water outlet with heavy metal separating device, the circulation line that the filtrate outlet of pressure filter is connected, described circulation line is connected in the sour pond of storage.
As preferably, described backwash filter is connected with back flushing water source, and described ion exchange system is connected with regenerating acid cleaning of evaporator.
As preferably, described back flushing water source is tap water.
As preferably, described concentrating waste acid preliminary sedimentation tank is connected with alkali lye chemicals dosing plant.
As preferably, before described heavy metal separating device, be provided with flocculation agent chemicals dosing plant.
As preferably, load folded membrane filter core in described accurate filter, the filtering accuracy of described folded membrane filter core is 20 μm.
As preferably, described ion exchange system is cation exchange system.
As preferably, in described embrane method system, load reverse osmosis membrane.
The beneficial effects of the utility model are: the stainless steel acid cleaning waste water after native system process, and water quality reaches discharging standards, can also be separated simultaneously, make resource be recycled utilization, greatly saved resource water, acid solution with heavy metal ion sub-prime.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, embodiment of the present utility model is described further:
Fig. 1 is the structural representation of the process recovery system of stainless steel acid-washing waste liquid in the utility model.
Embodiment
As shown in Figure 1, the process recovery system of stainless steel acid-washing waste liquid, comprise the sour pond 1 of the storage connected successively, backwash filter 2, accurate filter 3, ion exchange system 4 and embrane method system 5, backwash filter 2 is connected with back flushing outlet pipeline 21, its back flushing water source is tap water; Ion exchange system 4 is cation exchange system, it is connected with regenerating acid cleaning of evaporator 41 and regeneration waste liquid pipeline 42; Back flushing outlet pipeline 21 is connected with the water inlet of regeneration waste liquid pipeline 42 with concentrating waste acid preliminary sedimentation tank 6, concentrating waste acid preliminary sedimentation tank 6 is connected with alkali lye chemicals dosing plant 61, the water outlet of concentrating waste acid preliminary sedimentation tank 6 is connected with the water-in of heavy metal separating device 7, flocculation agent chemicals dosing plant 71 is provided with before heavy metal separating device 7, the slag notch of heavy metal separating device 7 is connected with the opening for feed of pressure filter 8, also comprise the circulation line 9 be connected with the filtrate outlet of the water outlet of heavy metal separating device 7, pressure filter 8, described circulation line 9 is connected in the sour pond 1 of storage.
Load folded membrane filter core in described accurate filter 3, the filtering accuracy of folded membrane filter core is 20 μm; Reverse osmosis membrane is loaded in embrane method system 5.
Stainless steel acid-washing waste liquid is successively after storing up sour pond 1, backwash filter 2, accurate filter 3, ion exchange system 4 and embrane method system 5, and reverse osmose pure-water can be back in production, and the dense water that reverse osmosis produces is sour concentrated solution recoverable.The waste water that backwash filter 2 back flushing produces and ion exchange system 4 regenerate the waste liquid of generation after heavy metal separating device 7 filters, filter residue after pressure filter 8 press filtration after further process recoverable metal, and heavy metal separating device 7 filter after filtrate and the filtrate that produces of pressure filter 8 press filtration sends into further circular treatment in the sour pond 1 of storage again through circulation line 9.Native system is separated with heavy metal ion sub-prime water, acid solution, makes resource be recycled utilization, has greatly saved resource.
Claims (8)
1. the process recovery system of stainless steel acid-washing waste liquid, it is characterized in that: comprise the sour pond of storage, the backwash filter be connected with the sour pond of storage, the accurate filter be connected with backwash filter, the ion exchange system be connected with accurate filter and the embrane method system be connected with ion exchange system, described backwash filter is connected with back flushing outlet pipeline, described ion exchange system is connected with regeneration waste liquid pipeline, described back flushing outlet pipeline is connected with the water inlet of regeneration waste liquid pipeline with concentrating waste acid preliminary sedimentation tank, the water outlet of described concentrating waste acid preliminary sedimentation tank is connected with the water-in of heavy metal separating device, the slag notch of heavy metal separating device is connected with the opening for feed of pressure filter, also comprise the water outlet with heavy metal separating device, the circulation line that the filtrate outlet of pressure filter is connected, described circulation line is connected in the sour pond of storage.
2. the process recovery system of stainless steel acid-washing waste liquid according to claim 1, it is characterized in that: described backwash filter is connected with back flushing water source, described ion exchange system is connected with regenerating acid cleaning of evaporator.
3. the process recovery system of stainless steel acid-washing waste liquid according to claim 2, is characterized in that: described back flushing water source is tap water.
4. the process recovery system of the stainless steel acid-washing waste liquid according to Claims 2 or 3, is characterized in that: described concentrating waste acid preliminary sedimentation tank is connected with alkali lye chemicals dosing plant.
5. the process recovery system of stainless steel acid-washing waste liquid according to claim 4, is characterized in that: be provided with flocculation agent chemicals dosing plant before described heavy metal separating device.
6. the process recovery system of stainless steel acid-washing waste liquid according to claim 5, is characterized in that: load folded membrane filter core in described accurate filter, and the filtering accuracy of described folded membrane filter core is 20 μm.
7. the process recovery system of stainless steel acid-washing waste liquid according to claim 6, is characterized in that: described ion exchange system is cation exchange system.
8. the process recovery system of stainless steel acid-washing waste liquid according to claim 7, is characterized in that: load reverse osmosis membrane in described embrane method system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420552292.5U CN204097243U (en) | 2014-09-23 | 2014-09-23 | The process recovery system of stainless steel acid-washing waste liquid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420552292.5U CN204097243U (en) | 2014-09-23 | 2014-09-23 | The process recovery system of stainless steel acid-washing waste liquid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204097243U true CN204097243U (en) | 2015-01-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420552292.5U Expired - Fee Related CN204097243U (en) | 2014-09-23 | 2014-09-23 | The process recovery system of stainless steel acid-washing waste liquid |
Country Status (1)
| Country | Link |
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| CN (1) | CN204097243U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019153744A1 (en) * | 2018-02-08 | 2019-08-15 | 福建希海环保科技有限公司 | Solid-liquid separation system |
| CN115520917A (en) * | 2021-10-27 | 2022-12-27 | 泰州威绿环保科技有限公司 | Wastewater pollution treatment system for stainless steel product centralized cleaning workshop |
-
2014
- 2014-09-23 CN CN201420552292.5U patent/CN204097243U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019153744A1 (en) * | 2018-02-08 | 2019-08-15 | 福建希海环保科技有限公司 | Solid-liquid separation system |
| CN115520917A (en) * | 2021-10-27 | 2022-12-27 | 泰州威绿环保科技有限公司 | Wastewater pollution treatment system for stainless steel product centralized cleaning workshop |
| CN115520917B (en) * | 2021-10-27 | 2024-01-23 | 泰州威绿环保科技有限公司 | Wastewater pollution treatment system of stainless steel product centralized cleaning workshop |
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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: 20150114 Termination date: 20210923 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |