CN202064000U - Waste acid regeneration system - Google Patents
Waste acid regeneration system Download PDFInfo
- Publication number
- CN202064000U CN202064000U CN2011201281324U CN201120128132U CN202064000U CN 202064000 U CN202064000 U CN 202064000U CN 2011201281324 U CN2011201281324 U CN 2011201281324U CN 201120128132 U CN201120128132 U CN 201120128132U CN 202064000 U CN202064000 U CN 202064000U
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- CN
- China
- Prior art keywords
- waste acid
- separator
- regenerating system
- pickling
- blower fan
- 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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Abstract
The utility model relates to a waste acid regeneration system which comprises a waste acid precipitating tank, a filter press, a collecting tank, a roasting reaction furnace, a separator, a preconcentrator, an absorption tower and a fan that are sequentially connected. The waste acid regeneration system of the utility model can ensure that the pickling hydrochloric acid keeps certain concentration, the pickling fluid can be recycled while the pickling effect is ensured, not only is the pickling material cost saved, but also the environment is protected.
Description
Technical field
The utility model relates to a kind of circulation fluid regeneration system rapidly, relates in particular to a kind of waste acid regenerating system.
Background technology
In cold-rolling pickling factory, generally use the acid pickling steel plate with hydrochloric acid silica removal.When the acid pickling steel plate with hydrochloric acid silica removal, hydrochloric acid easily with the ferric oxide generation chemical reaction of plate surface, generation iron protochloride or iron(ic) chloride, iron protochloride or iron(ic) chloride are dissolved in the pickle solution, have reduced the concentration of hydrochloric acid.Along with the carrying out of acid cleaning process, the iron concentration in the hydrochloric acid soln can constantly raise, and the concentration of hydrochloric acid will reduce accordingly, and last pickling hydrochloric acid can not re-use.Such pickling has not only increased the waste of pickling material, has also produced a large amount of useless discharges.
Summary of the invention
Technical problem to be solved in the utility model provides a kind of waste acid regenerating system, and this waste acid regenerating system has solved above-mentioned problems of the prior art.
For addressing the above problem, the technical solution of the utility model is:
A kind of waste acid regenerating system, described waste acid regenerating system comprises spent acid settling bath, pressure filter, receiving tank, roasting Reaktionsofen, separator, preconcentrator, absorption tower and blower fan, and described spent acid settling bath, pressure filter, receiving tank, roasting Reaktionsofen, separator, preconcentrator, absorption tower are connected in turn with blower fan.
Preferably, described blower fan also is connected with washing tower, and washing tower is made up of the two-stage spray section, and the top of washing tower is provided with gas shaft, is connected with stopple coupon on the gas shaft, and stopple coupon is connected with gas shaft by flange.
Preferably, described separator is a bispin wind separator, and the bottom of separator is a conical structure.
Preferably, described blower fan is a centrifugal blower.
The waste acid regenerating system that the utility model provides can make pickling hydrochloric acid keep certain concentration, can recycle pickle solution when guaranteeing pickling effect, has not only saved the pickling material cost, has also protected environment.
Description of drawings
Fig. 1 is the structural representation of the utility model waste acid regenerating system.
Embodiment
Further describe the utility model below in conjunction with drawings and Examples, but protection domain of the present utility model is not limited to this.
With reference to Fig. 1, waste acid regenerating system of the present utility model, comprise spent acid settling bath 1, pressure filter 2, receiving tank 3, roasting Reaktionsofen 4, bispin wind separator 5, preconcentrator 6, absorption tower 7, centrifugal blower 8 and washing tower 9, described spent acid settling bath 1, pressure filter 2, receiving tank 3, roasting Reaktionsofen 4, bispin wind separator 5, preconcentrator 6, absorption tower 7, centrifugal blower 8 are connected in turn with washing tower 9.The bottom of bispin wind separator 5 is a conical structure, and this structure can make solid particulate drop to the bottom smoothly.Washing tower 9 is the two-stage spray absorber, and the top of washing tower 9 is provided with gas shaft 10, is connected with stopple coupon 11 on the gas shaft 10, and stopple coupon 11 links to each other with gas shaft 10 by flange 12.
Waste acid regenerating system is at first collected the spent acid that the silica removal device produces in the spent acid settling bath 1, and the spent acid of post precipitation enters in the pressure filter 2, and the strainer of pressure filter 2 is with in the spent acid
Particle is removed; Enter into roasting Reaktionsofen 4 through the spent acid after filtering by receiving tank 3, heat spent acid in roasting Reaktionsofen 4, make it that series of physical chemical reaction take place, wherein moisture is evaporated, FeCl
2, FeCl
3After roasting, generate Fe
2O
3With the HCl steam; By centrifugal blower 8 reactant gases is extracted out from the top of roasting Reaktionsofen 4, through bispin wind separator 5 cutting out partial Fe
2O
3Particle, the bottom of bispin wind separator 5 is a conical structure, the reactant gases upward movement of in equipment, spinning, solid particulate drops to the bottom at centrifugal action, thereby isolates reactant gases smoothly; Reactant gases enters in the preconcentrator 6, and reactant gases directly contacts with spent acid solution in the preconcentrator 6, and the thermal energy transfer of reactant gases is given spent acid solution, and the reactant gases refrigerative concentrates spent acid solution simultaneously; Cooled reactant gases enters in the absorption tower 7, and the reactant gases major part is absorbed the back by rinse water and forms regenerating acid.Flowing of reactant gases all realized by centrifugal blower 8 in the whole waste acid regenerating system, centrifugal blower 8 makes the equipment in the waste acid regenerating system all be in negative pressure state, the housing of centrifugal blower 8 adopts carbon steel to make, liner is an acid-resisting rubber, blower fan is provided with impeller, impeller adopts titanium alloy to make, and also is provided with the impeller spray equipment on the impeller, and blower fan 8 is controlled by variable frequency drive motors.The waste gas that can produce small amount of H Cl in the absorption tower 7 overflows from cat head, and the gas after overflowing enters washing tower 9, through the spray pure water section of washing tower 9 internal upper parts and the spray FeCl of bottom
2Enter atmosphere after the liquid segment.Can obtain the discharging waste gas sample by the stopple coupon 11 that is provided with on the gas shaft 10, with the monitoring exhaust quality.Exhaust sample is handled the back find that the hydrogen chloride gas body burden is less than 30mg/m3 in the waste gas, chlorine content is less than 5mg/m3, and iron oxide content meets the environmental emission standard of country fully less than 50 mg/m3.
Claims (4)
1. waste acid regenerating system, it is characterized in that, described waste acid regenerating system comprises spent acid settling bath, pressure filter, receiving tank, roasting Reaktionsofen, separator, preconcentrator, absorption tower and blower fan, and described spent acid settling bath, pressure filter, receiving tank, roasting Reaktionsofen, separator, preconcentrator, absorption tower are connected in turn with blower fan.
2. waste acid regenerating system according to claim 1 is characterized in that described blower fan also is connected with washing tower, washing tower is made up of the two-stage spray section, the top of washing tower is provided with gas shaft, is connected with stopple coupon on the gas shaft, and stopple coupon is connected with gas shaft by flange.
3. waste acid regenerating system according to claim 1 is characterized in that, described separator is a bispin wind separator, and the bottom of separator is a conical structure.
4. waste acid regenerating system according to claim 1 is characterized in that, described blower fan is a centrifugal blower.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201281324U CN202064000U (en) | 2011-04-27 | 2011-04-27 | Waste acid regeneration system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201281324U CN202064000U (en) | 2011-04-27 | 2011-04-27 | Waste acid regeneration system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202064000U true CN202064000U (en) | 2011-12-07 |
Family
ID=45057868
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201281324U Expired - Fee Related CN202064000U (en) | 2011-04-27 | 2011-04-27 | Waste acid regeneration system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202064000U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106943847A (en) * | 2017-04-20 | 2017-07-14 | 成都瑞柯林工程技术有限公司 | The device of fine brown iron oxide is reclaimed from acid-washing waste acid regenerative system |
| CN109569205A (en) * | 2018-12-26 | 2019-04-05 | 中冶南方工程技术有限公司 | Acid regeneration flue gas processing method and system |
| CN109718640A (en) * | 2018-12-26 | 2019-05-07 | 新冶高科技集团有限公司 | A kind of regeneration of hydrochloric acid flue gas emission and discharge method |
| CN114105426A (en) * | 2021-11-30 | 2022-03-01 | 马鞍山钢铁股份有限公司 | Waste acid recycling and regenerating on-line recycling system and process |
-
2011
- 2011-04-27 CN CN2011201281324U patent/CN202064000U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106943847A (en) * | 2017-04-20 | 2017-07-14 | 成都瑞柯林工程技术有限公司 | The device of fine brown iron oxide is reclaimed from acid-washing waste acid regenerative system |
| CN106943847B (en) * | 2017-04-20 | 2023-08-15 | 成都瑞柯林工程技术有限公司 | Device for recovering fine iron oxide powder from pickling waste acid regeneration system |
| CN109569205A (en) * | 2018-12-26 | 2019-04-05 | 中冶南方工程技术有限公司 | Acid regeneration flue gas processing method and system |
| CN109718640A (en) * | 2018-12-26 | 2019-05-07 | 新冶高科技集团有限公司 | A kind of regeneration of hydrochloric acid flue gas emission and discharge method |
| CN114105426A (en) * | 2021-11-30 | 2022-03-01 | 马鞍山钢铁股份有限公司 | Waste acid recycling and regenerating on-line recycling system and process |
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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: 20111207 Termination date: 20190427 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |