CN202913059U - Acid mixing, washing and preparation system for hot rolled stainless band steel - Google Patents
Acid mixing, washing and preparation system for hot rolled stainless band steel Download PDFInfo
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- CN202913059U CN202913059U CN201220495315.4U CN201220495315U CN202913059U CN 202913059 U CN202913059 U CN 202913059U CN 201220495315 U CN201220495315 U CN 201220495315U CN 202913059 U CN202913059 U CN 202913059U
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Abstract
The utility model discloses an acid mixing, washing and preparation system for hot rolled stainless band steel. The acid mixing, washing and preparation system comprises a first acid preparation device, a second acid preparation device and a third acid preparation device, wherein each acid preparation device comprises an acid washing circulation tank; each acid washing circulation tank is configured with an acid preparation pipeline and an acid discharge hole; an acid washing circulation pump is arranged in correspondence to each acid washing circulation tank; each acid washing circulation tank is connected with a waste acid discharge pipeline through each acid washing circulation pump; an acid liquid conveying pipeline is arranged at a liquid discharge hole of the acid liquid circulation pump of the third acid preparation device; and the acid liquid conveying pipeline is connected with the inlets of the acid washing circulation tanks of the second acid preparation device and the first acid preparation device respectively. The acid mixing, washing and preparation system has the benefits as follows: different acid preparation modes can be adopted according to the practical production situations in the production process, the acid preparation way is flexible, the consumption of new acid can be reduced, the convenience is provided for management of acid liquid, and the acid washing quality of the band steel is improved.
Description
Technical field
The utility model relates to hot-rolled stainless steel annealing and pickling field, particularly a kind of hot-rolled stainless steel band steel reinforced concrete acid pickling acid preparing system.
Background technology
Hot-rolled stainless steel annealing and pickling line is a critical process of cold-rolling stainless steel production process, the acid preparing system major part of hot-rolled stainless steel band steel annealing and pickling line nitration mixture pickling section all is the independent acid preparing system that adopts at present, the complex acid that is the circulation tank of each pickling tank carries out separately complex acid, such acid preparing system in process of production, the consumption of eo-acid is larger, and the concentration of metal ions of last pickling tank is lower, and the acid ion concentration ratio is higher, if directly discharging can form waste.
The utility model content
Technical problem to be solved in the utility model is that the deficiency that exists for above-mentioned prior art proposes a kind of consumption that reduces eo-acid, improves the hot-rolled stainless steel band steel reinforced concrete acid pickling acid preparing system with the pickling quality of steel.
The utility model is to solve the problems of the technologies described above the technical scheme that adopts to be: comprise the first acid preparing device, the second acid preparing device, the 3rd acid preparing device, each acid preparing device includes the pickling circulation tank, each pickling circulation tank all disposes complex acid pipeline and acid discharge mouth, corresponding each acid preparing device is provided with the acid cycle pump, the fluid inlet of acid cycle pump is connected with the acid discharge mouth of pickling circulation tank, the leakage fluid dram of each acid cycle pump links to each other with the spent acid discharge tube respectively, leakage fluid dram at the acid cycle pump of the 3rd acid preparing device also is provided with the acid solution transport pipe, described acid solution transport pipe respectively with the pickling circulation tank of the second acid preparing device, the entrance of the pickling circulation tank of the first acid preparing device links to each other.
By technique scheme, the first acid preparing device comprises 2 pickling circulation tanks, connect by the first pipeline, fluid inlet and first pipeline communication of corresponding acid cycle pump, the second acid preparing device comprises 2 pickling circulation tanks, connects by second pipe, the fluid inlet of corresponding acid cycle pump is communicated with second pipe, the 3rd acid preparing device comprises 2 pickling circulation tanks, connects fluid inlet and the 3rd pipeline communication of corresponding acid cycle pump by the 3rd pipeline.
By technique scheme, the pickling circulation tank of each acid preparing device connects by the control valve pickling recycle pump corresponding with it.
By technique scheme, the leakage fluid dram of the pickling recycle pump of the 3rd acid preparing device is connected with the acid solution transport pipe by control valve.
By technique scheme, the ingress of the acid solution transport pipe of the pickling circulation tank of the second acid preparing device, the first acid preparing device is equipped with control valve.
By technique scheme, described complex acid pipeline is respectively HNO3 service, HF service, regenerating acid service, service water service.
The utility model beneficial effect obtained with respect to prior art is: in process of production, can be according to practical condition, adopt different complex acid patterns, the complex acid mode is flexible, can save the consumption of eo-acid, is convenient to the management of acid solution, can control preferably the concentration of metal ions of first, second acid preparing device, make the maintenance of the concentration of metal ions in acid solution lower concentration in the 3rd acid preparing device, thereby increase the strip pickling effect, improve the strip pickling quality.
Description of drawings
Fig. 1 is principle schematic of the present utility model.
Embodiment
As shown in Figure 1, comprise the 3rd acid preparing device, the second acid preparing device, the first acid preparing device, the 3rd acid preparing device comprises two acid cycle tank T1, T2, pickling recycle pump 3, the 3rd pipeline 2, spent acid discharge tube 8, the second acid preparing device comprises two acid cycle tank T3, T4, pickling recycle pump 13, second pipe 10, spent acid discharge tube 14; The first acid preparing device comprises two acid cycle tank T5, T6, pickling recycle pump 21, the first pipeline 20, spent acid discharge tube 28.
In the 3rd acid preparing device, acid discharge mouth at acid cycle tank T1 is provided with control acid solution pipage control valve 1, the acid discharge mouth of acid cycle tank T2 is provided with control acid solution pipage control valve 7, the acid discharge mouth of acid cycle tank T1 is connected the acid discharge mouth by 2 connections of the 3rd pipeline with acid cycle tank T2, the fluid inlet of acid cycle pump 3 is communicated with the 3rd pipeline 2, the leakage fluid dram of acid cycle pump 3 is provided with spent acid discharge tube 8, the discharging of waste liquid is by control valve 5 controls, and the leakage fluid dram of acid cycle pump 3 also is communicated with acid solution transport pipe 6 by control valve 4.The top of acid cycle tank T1 and acid cycle tank T2 acid cycle tank links to each other with new HNO3 service, new HF service, regenerating acid service, service water service respectively.
In the second acid preparing device, acid discharge mouth at acid cycle tank T3 is provided with control acid solution pipage control valve 9, the acid discharge mouth of acid cycle tank T4 is provided with control acid solution pipage control valve 15, the acid discharge mouth of acid cycle tank T3 is connected the acid discharge mouth by second pipe 10 connections with acid cycle tank T4, the fluid inlet of acid cycle pump 13 is communicated with second pipe 10, and the leakage fluid dram of acid cycle pump 13 is communicated with by control valve 16 with spent acid discharge tube 14.The top of acid cycle tank T3 and acid cycle tank T4 links to each other with new HNO3 service, new HF service, regenerating acid service, service water service respectively, and the top of acid cycle tank T3 is provided with the acid solution transport pipe 12 that is connected with acid solution transport pipe 6, be provided with control valve 11 at acid solution transport pipe 12, equally, and the top of acid cycle tank T4 be provided with the acid solution transport pipe 18 that is connected with acid solution transport pipe 6, be provided with control valve 17 at acid solution transport pipe 18.
In the first acid preparing device, acid discharge mouth at acid cycle tank T5 is provided with control acid solution pipage control valve 19, the acid discharge mouth of acid cycle tank T6 is provided with control acid solution pipage control valve 27, the acid discharge mouth of acid cycle tank T5 is connected the acid discharge mouth by 20 connections of the first pipeline with acid cycle tank T6, the fluid inlet of acid cycle pump 21 is communicated with the first pipeline 20, and the leakage fluid dram of acid cycle pump 21 is communicated with by control valve 26 with spent acid discharge tube 28.The top of acid cycle tank T5 and acid cycle tank T6 links to each other with new HNO3 service, new HF service, regenerating acid service, service water service respectively, and the top of acid cycle tank T5 is provided with the acid solution transport pipe 23 that is connected with acid solution transport pipe 6, be provided with control valve 22 at acid solution transport pipe 23, equally, be provided with the acid solution transport pipe 24 that is connected with acid solution transport pipe 6 at the top of acid cycle tank T6, be provided with control valve 25 at acid solution transport pipe 24.
When just beginning to produce, three systems add eo-acid and carry out complex acid by new HNO3 service, new HF service, regenerating acid service, service water service separately respectively.
Generally speaking, per half hour, added an eo-acid in the production, and the interpolation of eo-acid is acid cycle tank T3 or T4, T5 or the T6 from the acid cycle tank T1 of the 3rd acid preparing device or T2 to the second, the first acid preparing device.Processing sequence with steel is from the first acid preparing device, the second acid preparing device to the three acid preparing devices, because the processing of the 3rd acid preparing device is the last treating processes with steel, the concentration of metal ions of acid solution is lower in the acid cycle tank, the acid ion concentration ratio is higher, can also be used, easily form waste if directly enter the spent acid pipeline, acid solution in the 3rd acid preparing device can be transported to second, in the first acid preparing device, general target is to keep the concentration of metal ions in the second acid preparing device and the first acid preparing device acid solution constant, therefore the acid solution of some amount will be discharged into the regenerating acid system or to Waste Water Treatment from the second acid preparing device and the first acid preparing device, the correction of this quantity is according to the second acid preparing device, the concentration of metal ions that increases or reduce in the first acid preparing device, simultaneously also according to the strip pickling technique area that per hour passes through, the a part of acid solution that per hour will lose in the pickling circulation tank, this part acid solution of losing mainly comprises by evaporation, from acid tank, taken out of the acid solution of discharging with the pickling circulation tank with steel, this part acid solution of losing will show to compensate according to the acid cycle tank T1 in the 3rd acid preparing device or the liquid level among the T2, then by the 3rd acid preparing device acid solution be added to the acid cycle tank T3 or acid cycle tank T4 and the first acid preparing device acid cycle tank T5 or acid cycle tank T6 of the second acid preparing device from the acid solution transport pipe.
When producing for some time, when the acid ion concentration in the second acid preparing device and the first acid preparing device and concentration of metal ions and aimed concn differ larger, at this time three systems add eo-acid and carry out complex acid by new HNO3 service, new HF service, regenerating acid service, service water service separately respectively, revise acid ion concentration and concentration of metal ions, acid strength and concentration of metal ions and aimed concn are consistent.
Complex acid is flexible in process of production for the hot-rolled stainless steel band steel reinforced concrete acid pickling acid preparing system that the utility model provides, can save the consumption of eo-acid, be convenient to the management of acid solution, can control preferably the concentration of metal ions in the acid solution in first, second acid preparing device, make the maintenance of the concentration of metal ions in acid solution lower concentration in the 3rd acid preparing device, thereby increase the strip pickling effect, improve the strip pickling quality.
Claims (6)
1. hot-rolled stainless steel band steel reinforced concrete acid pickling acid preparing system, it is characterized in that comprising the first acid preparing device, the second acid preparing device, the 3rd acid preparing device, each acid preparing device includes the pickling circulation tank, each pickling circulation tank all disposes complex acid pipeline and acid discharge mouth, corresponding each acid preparing device is provided with the acid cycle pump, the fluid inlet of acid cycle pump is connected with the acid discharge mouth of pickling circulation tank, the leakage fluid dram of each acid cycle pump links to each other with the spent acid discharge tube respectively, leakage fluid dram at the acid cycle pump of the 3rd acid preparing device also is provided with the acid solution transport pipe, described acid solution transport pipe respectively with the pickling circulation tank of the second acid preparing device, the entrance of the pickling circulation tank of the first acid preparing device links to each other.
2. a kind of hot-rolled stainless steel band steel reinforced concrete acid pickling acid preparing system according to claim 1, it is characterized in that the first acid preparing device comprises 2 pickling circulation tanks, connect by the first pipeline, fluid inlet and first pipeline communication of corresponding acid cycle pump, the second acid preparing device comprises 2 pickling circulation tanks, connect by second pipe, the fluid inlet of corresponding acid cycle pump is communicated with second pipe, the 3rd acid preparing device comprises 2 pickling circulation tanks, connect fluid inlet and the 3rd pipeline communication of corresponding acid cycle pump by the 3rd pipeline.
3. a kind of hot-rolled stainless steel band steel reinforced concrete acid pickling acid preparing system according to claim 2 is characterized in that the pickling circulation tank of each acid preparing device connects by the control valve pickling recycle pump corresponding with it.
4. according to claim 2 or 3 described a kind of hot-rolled stainless steel band steel reinforced concretes acid pickling acid preparing systems, it is characterized in that the leakage fluid dram of the pickling recycle pump of the 3rd acid preparing device is connected with the acid solution transport pipe by control valve.
5. a kind of hot-rolled stainless steel band steel reinforced concrete acid pickling acid preparing system according to claim 4 is characterized in that the ingress of acid solution transport pipe of the pickling circulation tank of the second acid preparing device, the first acid preparing device is equipped with control valve.
6. a kind of hot-rolled stainless steel band steel reinforced concrete acid pickling acid preparing system according to claim 1 and 2 is characterized in that described complex acid pipeline is respectively HNO3 service, HF service, regenerating acid service, service water service.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220495315.4U CN202913059U (en) | 2012-09-26 | 2012-09-26 | Acid mixing, washing and preparation system for hot rolled stainless band steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220495315.4U CN202913059U (en) | 2012-09-26 | 2012-09-26 | Acid mixing, washing and preparation system for hot rolled stainless band steel |
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| Publication Number | Publication Date |
|---|---|
| CN202913059U true CN202913059U (en) | 2013-05-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201220495315.4U Expired - Fee Related CN202913059U (en) | 2012-09-26 | 2012-09-26 | Acid mixing, washing and preparation system for hot rolled stainless band steel |
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| CN (1) | CN202913059U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108950690A (en) * | 2017-05-19 | 2018-12-07 | 浙江昱辉阳光能源有限公司 | A kind of silicon material recycling acid washing method and device |
| CN109371404A (en) * | 2018-11-28 | 2019-02-22 | 张家港浦项不锈钢有限公司 | A kind of hot-rolled stainless steel annealing and pickling line regenerated acid utilizes method |
-
2012
- 2012-09-26 CN CN201220495315.4U patent/CN202913059U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108950690A (en) * | 2017-05-19 | 2018-12-07 | 浙江昱辉阳光能源有限公司 | A kind of silicon material recycling acid washing method and device |
| CN109371404A (en) * | 2018-11-28 | 2019-02-22 | 张家港浦项不锈钢有限公司 | A kind of hot-rolled stainless steel annealing and pickling line regenerated acid utilizes method |
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| 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: 20130501 Termination date: 20210926 |
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| CF01 | Termination of patent right due to non-payment of annual fee |