CN203244811U - Device for resourceful treatment of steel hydrochloric acid pickle liquor - Google Patents
Device for resourceful treatment of steel hydrochloric acid pickle liquor Download PDFInfo
- Publication number
- CN203244811U CN203244811U CN 201320194093 CN201320194093U CN203244811U CN 203244811 U CN203244811 U CN 203244811U CN 201320194093 CN201320194093 CN 201320194093 CN 201320194093 U CN201320194093 U CN 201320194093U CN 203244811 U CN203244811 U CN 203244811U
- Authority
- CN
- China
- Prior art keywords
- hydrochloric acid
- tower
- outlet
- condenser
- destilling tower
- 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.)
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- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 title claims abstract description 46
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 11
- 239000010959 steel Substances 0.000 title claims abstract description 11
- 235000021110 pickles Nutrition 0.000 title abstract description 5
- 239000007788 liquid Substances 0.000 claims abstract description 28
- 239000002699 waste material Substances 0.000 claims abstract description 21
- 238000010521 absorption reaction Methods 0.000 claims abstract description 7
- 239000007921 spray Substances 0.000 claims abstract description 7
- 238000005201 scrubbing Methods 0.000 claims description 12
- 238000007599 discharging Methods 0.000 claims description 8
- 239000012530 fluid Substances 0.000 claims description 6
- 239000007792 gaseous phase Substances 0.000 claims description 6
- 238000005554 pickling Methods 0.000 claims description 6
- 238000004064 recycling Methods 0.000 claims description 6
- 238000004821 distillation Methods 0.000 abstract description 8
- 239000000701 coagulant Substances 0.000 abstract description 4
- 238000005406 washing Methods 0.000 abstract description 4
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 abstract description 2
- 238000005265 energy consumption Methods 0.000 abstract description 2
- 238000003756 stirring Methods 0.000 abstract 2
- 239000012808 vapor phase Substances 0.000 abstract 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 15
- 229910052742 iron Inorganic materials 0.000 description 8
- 238000000034 method Methods 0.000 description 5
- 238000002425 crystallisation Methods 0.000 description 3
- 238000003672 processing method Methods 0.000 description 3
- 239000002253 acid Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000005342 ion exchange Methods 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229940067573 brown iron oxide Drugs 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000002920 hazardous waste Substances 0.000 description 1
- DKAGJZJALZXOOV-UHFFFAOYSA-N hydrate;hydrochloride Chemical compound O.Cl DKAGJZJALZXOOV-UHFFFAOYSA-N 0.000 description 1
- -1 iron ion Chemical class 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The utility model discloses a device for resourceful treatment of steel hydrochloric acid pickle liquor, and aims to solve the problem of poor reclaimed hydrochloric acid concentration in the prior art. The device adopts the structure that a stirring device is arranged in a waste liquor groove; the discharge opening of the waste liquor groove is connected with the feed opening of a distillation tower; the residue discharge opening of the distillation tower is connected with the feed opening of a stirring reactor; the tower top vapor phase outlet of the distillation tower is connected with the gas inlet of a condenser; the condensate outlet of the condenser is connected with the feed opening of a reclaimed hydrochloric acid storage tank and the bottom end gas inlet of a washing tower respectively; the liquid outlet of the washing tower is connected with the liquid inlet of an absorption liquid tank; a spray header is arranged at the top end of the washing tower, and is connected with the liquid outlet of the absorption liquid tank through a pump; the feed pipeline and the vapor phase outlet pipeline of the distillation tower are connected with a heat exchanger respectively. The device is simple in equipment unit and low in energy consumption, front-end investment and treatment cost, and can reclaim hydrochloric acid and prepare polyferric sulfate coagulant synchronously.
Description
Technical field
The utility model belongs to pickle liquor recycling field, is specifically related to a kind of device of steel hydrochloric acid pickling waste liquor recycling treatment.
Background technology
The steel hydrochloric acid pickling waste liquor contains a large amount of residual hydrochloric acid and metallic iron ion, is classified as hazardous waste both at home and abroad at present and manages, and strict restriction has been done in residual iron discharging.The acid content of pickle liquor is at 5-10%, and total iron content will not cause very big harm generally at 50-150g/L to water ecological environment if do not add the random discharging of processing.
Pickle liquor recycling processing method commonly used has high-temperature roasting method, evaporative crystallization method, ion-exchange, membrane processing method, evaporative distillation method etc. at present.High-temperature roasting method because reclaim hydrochloric acid and the economic worth of brown iron oxide high, used by the industrialization of large-scale iron and steel enterprise, but up-front investment is large, equipment and technological requirement are strict.Though evaporative crystallization method processing cost is lower, but the residual iron content of exterior liquid can't be up to standard after the crystallization treatment.Ion-exchange and membrane processing method use the restriction that also is subjected to the high concentration iron content, easily cause resin and film to pollute.The evaporative distillation method has the advantages such as equipment is simple, processing cost is low, favored by small-sized iron and steel enterprise, but during to the hydrochloride waste evaporative distillation, can run into hydrochloric acid-water azeotrope obstacle, cause reclaiming concentration of hydrochloric acid not high, reclaim the shortcomings such as not thorough.
The distillation with adding salts technology can change hydrochloric acid-aqueous vapor liquid profile of equilibrium, improves and reclaims concentration of hydrochloric acid.Simultaneously, a large amount of ferrous components in the waste liquid can be used for preparing liquid coagulant, and the adding of salt can improve the degree of polymerization of iron, improves coagulation effect.
Summary of the invention
The utility model has proposed a kind of device of steel hydrochloric acid pickling waste liquor recycling treatment for the deficiencies in the prior art.
The utility model comprises waste liquid tank, heat exchanger, destilling tower, condenser, scrubbing tower, absorption flow container, reclaims hydrochloric acid fluid reservoir and stirred reactor;
It is characterized in that: be provided with agitating device in the described waste liquid tank, the discharging opening of waste liquid tank is connected with the charging aperture of destilling tower, the still liquid discharging opening of destilling tower is connected with the charging aperture of stirred reactor, the top gaseous phase outlet of destilling tower is connected with the air inlet of condenser, the condensate outlet of condenser respectively with the charging aperture that reclaims the hydrochloric acid fluid reservoir, the bottom air inlet of scrubbing tower connects, the liquid outlet of scrubbing tower is connected with absorption flow container inlet, the top of scrubbing tower is provided with spray head, spray head is connected with the liquid outlet that absorbs flow container by pump, and the input of column pipeline links to each other with heat exchanger respectively with destilling tower gaseous phase outlet pipeline.
The beneficial effect that the present invention has: it is simple to the utlity model has unit, and energy consumption is low, and advantage is hanged down in up-front investment and disposal cost, can realize synchronously HCl recovery and preparation Polyferric Sulfate coagulant, realizes the zero-emission of acid washing rolled steel waste liquid.The hydrochloric acid that reclaims and the new composite coagulant of preparation all have very high economic worth, can reach the purpose of resource reusing, the treatment of wastes with processes of wastes against one another, have environmental value and economic worth concurrently.
Description of drawings
Fig. 1 is device schematic diagram of the present invention.
The specific embodiment
As shown in Figure 1, the device that a kind of steel hydrochloric acid pickling effluent resource of the utility model is processed comprises waste liquid tank 1, heat exchanger 2, destilling tower 3, condenser 4, scrubbing tower 5, absorbs flow container 6, reclaims hydrochloric acid fluid reservoir 7 and stirred reactor 8;
Be provided with agitating device in the described waste liquid tank 1, the discharging opening of waste liquid tank 1 is connected with the charging aperture of destilling tower 3, the still liquid discharging opening of destilling tower 3 is connected with the charging aperture of stirred reactor 8, the top gaseous phase outlet of destilling tower 3 is connected with the air inlet of condenser 4, the condensate outlet of condenser 4 respectively with the charging aperture that reclaims hydrochloric acid fluid reservoir 7, the bottom air inlet of scrubbing tower 5 connects, the liquid outlet of scrubbing tower 5 is connected with absorption flow container 6 inlets, the top of scrubbing tower 5 is provided with spray head, spray head is connected with the liquid outlet that absorbs flow container by pump, and destilling tower 3 feed pipes link to each other with heat exchanger 2 respectively with destilling tower 3 gaseous phase outlet pipelines.
Claims (1)
1. the device of a steel hydrochloric acid pickling waste liquor recycling treatment comprises waste liquid tank, heat exchanger, destilling tower, condenser, scrubbing tower, absorption flow container, reclaims hydrochloric acid fluid reservoir and stirred reactor;
It is characterized in that: be provided with agitating device in the described waste liquid tank, the discharging opening of waste liquid tank is connected with the charging aperture of destilling tower, the still liquid discharging opening of destilling tower is connected with the charging aperture of stirred reactor, the top gaseous phase outlet of destilling tower is connected with the air inlet of condenser, the condensate outlet of condenser respectively with the charging aperture that reclaims the hydrochloric acid fluid reservoir, the bottom air inlet of scrubbing tower connects, the liquid outlet of scrubbing tower is connected with absorption flow container inlet, the top of scrubbing tower is provided with spray head, spray head is connected with the liquid outlet that absorbs flow container by pump, and the input of column pipeline links to each other with heat exchanger respectively with destilling tower gaseous phase outlet pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320194093 CN203244811U (en) | 2013-04-17 | 2013-04-17 | Device for resourceful treatment of steel hydrochloric acid pickle liquor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320194093 CN203244811U (en) | 2013-04-17 | 2013-04-17 | Device for resourceful treatment of steel hydrochloric acid pickle liquor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203244811U true CN203244811U (en) | 2013-10-23 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320194093 Expired - Fee Related CN203244811U (en) | 2013-04-17 | 2013-04-17 | Device for resourceful treatment of steel hydrochloric acid pickle liquor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203244811U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103288232A (en) * | 2013-04-17 | 2013-09-11 | 浙江大学 | Resourceful treatment apparatus and method for waste liquid of chlorohydric acid pickling of steel |
| CN105731570A (en) * | 2014-10-24 | 2016-07-06 | 吴昊 | Working method of distillation and heat recovery system for treating paper mill wastewater |
| CN105776381A (en) * | 2014-10-24 | 2016-07-20 | 吴昊 | Distillation and thermal recovery system capable of recycling fiber and paper-making additives in paper-making plant waste water |
| CN105776380A (en) * | 2014-10-24 | 2016-07-20 | 吴昊 | Distillation and heat recovery system for processing waste water of paper making plant |
| CN105776379A (en) * | 2014-10-24 | 2016-07-20 | 吴昊 | Working method of distillation and heat recovery system for treating industrial wastewater |
| CN105905965A (en) * | 2014-10-24 | 2016-08-31 | 吴昊 | Work method of distillation and heat recovery system for industrial wastewater treatment |
-
2013
- 2013-04-17 CN CN 201320194093 patent/CN203244811U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103288232A (en) * | 2013-04-17 | 2013-09-11 | 浙江大学 | Resourceful treatment apparatus and method for waste liquid of chlorohydric acid pickling of steel |
| CN103288232B (en) * | 2013-04-17 | 2014-12-31 | 浙江大学 | Resourceful treatment apparatus and method for waste liquid of chlorohydric acid pickling of steel |
| CN105731570A (en) * | 2014-10-24 | 2016-07-06 | 吴昊 | Working method of distillation and heat recovery system for treating paper mill wastewater |
| CN105776381A (en) * | 2014-10-24 | 2016-07-20 | 吴昊 | Distillation and thermal recovery system capable of recycling fiber and paper-making additives in paper-making plant waste water |
| CN105776380A (en) * | 2014-10-24 | 2016-07-20 | 吴昊 | Distillation and heat recovery system for processing waste water of paper making plant |
| CN105776379A (en) * | 2014-10-24 | 2016-07-20 | 吴昊 | Working method of distillation and heat recovery system for treating industrial wastewater |
| CN105905965A (en) * | 2014-10-24 | 2016-08-31 | 吴昊 | Work method of distillation and heat recovery system for industrial wastewater treatment |
| CN105905964A (en) * | 2014-10-24 | 2016-08-31 | 吴昊 | Distillation and heat recovery system for industrial wastewater treatment |
| CN105923672A (en) * | 2014-10-24 | 2016-09-07 | 吴昊 | Distillation and heat recovery system for industrial wastewater treatment |
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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: 20131023 Termination date: 20150417 |
|
| EXPY | Termination of patent right or utility model |