CN204589308U - Spent acid reuse and ferrous salt reclaim outfit line - Google Patents
Spent acid reuse and ferrous salt reclaim outfit line Download PDFInfo
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- CN204589308U CN204589308U CN201520237622.6U CN201520237622U CN204589308U CN 204589308 U CN204589308 U CN 204589308U CN 201520237622 U CN201520237622 U CN 201520237622U CN 204589308 U CN204589308 U CN 204589308U
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Abstract
The utility model relates to a kind of spent acid reuse and ferrous salt reclaims outfit line, feature is: comprise pickling tub, pickling tub is connected with the first transferpump by the first valve, first transferpump is connected with spent acid pond, spent acid pond is connected with the second transferpump by the second transport pipe, second transferpump is connected with the 3rd valve, and the 3rd valve is connected with concentrated acid pond; Described spent acid pond is connected with the 4th valve, and the 4th valve is connected with the 3rd transferpump, and the 3rd transferpump is connected with crystallization kettle, arranges interchanger and agitator in crystallization kettle; Described crystallization kettle is connected with the 7th valve, 7th valve is connected with separated and collected pond, separated and collected arranges filter bag in pond, separated and collected pond is connected with the 9th valve, 9th valve is connected with reuse acid pond, reuse acid pond is connected with the 8th valve, and the 8th valve is connected with reuse acid transferpump, and reuse acid transferpump is connected with pickling tub.While the utility model solves spent acid process problem, the molysite produced when having reclaimed pickling.
Description
Technical field
The utility model relates to a kind of spent acid reuse and ferrous salt reclaims outfit line, the process of the ferrous salt of especially a kind of spent acid for being formed during steel surface zone of oxidation acid pickling and rust removing and generation and recycling equipment.
Background technology
General spent acid reuse, ferrous salt recovery gear method by being interrupted interpolation concentrated acid liquid in pickling tub after pickling, ferrous salt are constantly generated, when reaching capacity, start to occur crystallization, when ferrous salt crystallization reaches a certain amount of, release spent acid, then crystallization ferrous salt is taken out in spent acid pond, because reclaimed ferrous salt amount is less and humidity is larger, become pasty state, be the mixture of spent acid and ferrous salt, cannot directly recycle, ferrous salt can be produced after needing process further, efficiency is low, and running cost is high, cannot promote.
Summary of the invention
The purpose of this utility model overcomes the deficiencies in the prior art; a kind of spent acid reuse and ferrous salt is provided to reclaim outfit line, while solving spent acid process problem, the molysite produced when having reclaimed pickling; both achieve environment protection, obtain economic interests again.
According to the technical scheme that the utility model provides, a kind of spent acid reuse and ferrous salt reclaim outfit line, and feature is: comprise pickling tub, spent acid pond, concentrated acid pond, crystallization kettle, separated and collected pond, reuse acid pond and jet dehumidification drying device; The outlet of described pickling tub is connected with the entrance end of the first valve, the exit end of the first valve is connected with the entrance end of the first transferpump, the exit end of the first transferpump is connected with the entrance end of the second valve by the first transport pipe, the exit end of the second valve is connected with first import in spent acid pond, second import in spent acid pond is connected with the exit end of the second transferpump by the second transport pipe, the entrance end of the second transferpump is connected with the exit end of the 3rd valve, and the entrance end of the 3rd valve is connected with concentrated acid pond; The outlet in described spent acid pond is connected with the entrance end of the 4th valve, the exit end of the 4th valve is connected with the entrance end of the 3rd transferpump, the exit end of the 3rd transferpump is connected with crystallization kettle by the 3rd transport pipe, in crystallization kettle, arrange interchanger and agitator, the upper end of agitator is connected with motor and wheel box; The outlet of described crystallization kettle is connected with the entrance end of the 7th valve, the exit end of the 7th valve is connected with separated and collected pond, separated and collected arranges filter bag in pond, the outlet in separated and collected pond is connected with the entrance end of the 9th valve, the exit end of the 9th valve is connected with the import in reuse acid pond, the outlet in reuse acid pond is connected with the entrance end of the 8th valve, and the exit end of the 8th valve is connected with the entrance end of reuse acid transferpump, and the reuse acid exit end of transferpump is connected with the import of pickling tub.
Further, the import of described interchanger is connected with freezing transferpump by water pipe, and freezing transferpump is connected with the outlet of freezing unit by the 5th valve, and the outlet of interchanger is connected by the import of pipeline with freezing unit.
Further, described jet dehumidification drying device comprises jet aerator, the entrance end of jet aerator is connected with the exit end of water pump, and entrance end and the jet of the water pump casing that dehumidifies is connected, and the exit end of jet aerator is connected by the 6th valve with the bottom in separated and collected pond.
Further, described separated and collected pond is provided with ferrous salt and collects door.
Spent acid reuse described in the utility model and ferrous salt reclaim outfit line; the process of the spent acid formed when being mainly used in steel surface zone of oxidation acid pickling and rust removing and the ferrous salt of generation and recycling; while the process problem solving spent acid; the ferrous salt produced when having reclaimed again pickling; both while ensure that environment protection; obtain economic interests again, two obtain at one stroke.The utility model can be widely used in the surface treatment factory etc. of iron and steel reprocessing enterprise, iron and steel, antiseptic property is good, safe and reliable, the ferrous salt ridity reclaimed is high, particle is large, without the need to carrying out dehumidification treatments again, again can pump in pickling tank after spent acid process and reuse, namely solve environmental issue, the running cost reduced again.
Accompanying drawing explanation
fig. 1 is structural representation of the present utility model.
Embodiment
Below in conjunction with concrete accompanying drawing, the utility model is described in further detail.
As shown in Figure 1: described spent acid reuse and ferrous salt reclaim outfit line and comprise pickling tub 1, first valve 2, first transferpump 3, first transport pipe 4, concentrated acid pond 5, second valve 6, spent acid pond 7, 3rd valve 8, second transport pipe 9, second transferpump 10, 4th valve 11, 3rd transferpump 12, 3rd transport pipe 13, interchanger 14, crystallization kettle 15, agitator 16, motor 17, wheel box 18, water pipe 19, freezing transferpump 20, 5th valve 21, freezing unit 22, 4th transport pipe 23, water pump 24, jet dehumidification drying device 25, jet aerator 26, 5th transport pipe 27, 6th valve 28, 7th valve 29, ferrous salt collects door 30, filter bag 31, separated and collected pond 32, 8th valve 33, reuse acid transferpump 34, 6th transport pipe 35, 9th valve 36, reuse acid pond 37 etc.
As shown in Figure 1, the utility model comprises pickling tub 1, spent acid pond 7, concentrated acid pond 5, crystallization kettle 15, separated and collected pond 32, reuse acid pond 37 and jet dehumidification drying device 25, the outlet of described pickling tub 1 is connected with the entrance end of the first valve 2, the exit end of the first valve 2 is connected with the entrance end of the first transferpump 3, the exit end of the first transferpump 3 is connected with the entrance end of the second valve 6 by the first transport pipe 4, the exit end of the second valve 6 is connected with first import in spent acid pond 7, second import in spent acid pond 7 is connected with the exit end of the second transferpump 10 by the second transport pipe 9, the entrance end of the second transferpump 10 is connected with the exit end of the 3rd valve 8, and the entrance end of the 3rd valve 8 is connected with concentrated acid pond 5, the outlet in described spent acid pond 7 is connected with the entrance end of the 4th valve 11, the exit end of the 4th valve 11 is connected with the entrance end of the 3rd transferpump 12, the exit end of the 3rd transferpump 12 is connected with crystallization kettle 15 by the 3rd transport pipe 13, in crystallization kettle 15, arrange interchanger 14 and agitator 16, the upper end of agitator 16 is connected with motor 17 and wheel box 18, the outlet of described crystallization kettle 15 is connected with the entrance end of the 7th valve 29, the exit end of the 7th valve 29 is connected with separated and collected pond 32, filter bag 31 is set in separated and collected pond 32, separated and collected pond 32 is provided with ferrous salt and collects door 30, the outlet in separated and collected pond 32 is connected with the entrance end of the 9th valve 36, the exit end of the 9th valve 36 is connected with the import in reuse acid pond 37, the outlet in reuse acid pond 37 is connected with the entrance end of the 8th valve 33, the exit end of the 8th valve 33 is connected with the entrance end of reuse acid transferpump 34, the exit end of reuse acid transferpump 34 is connected with the import of pickling tub 1.
The import of described interchanger 14 is connected with freezing transferpump 20 by water pipe 19, and freezing transferpump 20 is connected with the outlet of freezing unit 22 by the 5th valve 21, and the outlet of interchanger 14 is connected by the import of pipeline with freezing unit 22.
Described jet dehumidification drying device 25 comprises jet aerator 26, the entrance end of jet aerator 26 is connected with the exit end of water pump 24, entrance end and the jet of water pump 24 casing that dehumidifies is connected, and the exit end of jet aerator 26 is connected by the 6th valve 28 with the bottom in separated and collected pond 32.
Described separated and collected pond 32 is provided with ferrous salt and collects door 30, this door is opened when collecting packed ferrous salt.
Working process of the present utility model: when ferrous salt in pickling tub and ferrous ion saturated time, open the first valve 2, second valve 6, start the first transferpump 3, the spent acid formed in pickling tub 1, ferrous salt and the saturated mixing solutions of ferrous ion are transported in spent acid pond 7 by the first transport pipe 4, stop the first transferpump 3 according to liquid level, close the first valve 2, second valve 6, open the 3rd valve 8, start the second transferpump 10 and the acid solution in concentrated acid pond 5 is delivered in spent acid pond 7 quantitatively by the second transport pipe 9, stop the second transferpump 10, close the 3rd valve 8, inject acid and spent acid pond 7 in ferrous ion generation chemical reaction generate ferrous salt, open the 4th valve 11, start the 3rd transferpump 12, spent acid in spent acid pond 7 and ferrous salt mixing solutions are delivered in crystallization kettle 15 by the 3rd transport pipe 13, stop the 3rd transferpump 12 by Liquid level, close the 4th valve 11, open the 5th valve 21, start freezing transferpump 20, the refrigerated water that freezing unit 22 is made is delivered in the interchanger 14 in crystallization kettle 15 by water pipe 19, be used for spent acid in crystallisation by cooling still 15 and ferrous salt mixing solutions, starter motor 17 simultaneously, motor 17 drives spent acid in agitator 16 stirred crystallization still 15 and ferrous salt mixing solutions by wheel box 18, make the refrigerated water Quick uniform heat exchange in spent acid in crystallization kettle 15 and ferrous salt mixing solutions and interchanger 14, along with the reduction of the spent acid in crystallization kettle 15 and ferrous salt mixing solutions temperature, the solubleness of ferrous salt diminishes, ferrous salt crystallization, when the spent acid in crystallization kettle 15 and ferrous salt mixing solutions temperature are reduced to design temperature, freezing unit 22 is shut down, freezing transferpump 20 stops, motor 17 stops, agitator 16 stops stirring, open the 7th valve 29, the all over-fed solution of the spent acid in crystallization kettle 15 and ferrous salt flows in separated and collected pond 32, under the filtration of the filter bag 31 in separated and collected pond 32, xln in mixing solutions and acid solution are separated, open the 9th valve 36 acid solution and flow into reuse acid pond 37, be called reuse acid, have a small amount of ferrous ion in reuse acid but do not affect reusing of pickling iron and steel, now, open the 8th valve 33, start reuse acid transferpump 34, acid solution in reuse acid pond 37 is conveyed in pickling tub by transport pipe and carries out pickling iron and steel next time, stop reuse acid transferpump 34, close the 8th valve 33, open the 6th valve 28, start water pump 24, water in jet dehumidification drying device 25 enters jet aerator 26 by the 4th transport pipe 23, swiftly flowing water makes the interior vacuum tightness that formed of the 5th transport pipe 27 be connected with jet aerator 26 produce negative pressure, and then the moisture content in isolated at suction collecting tank 32 in ferrous salt, dry ferrous salt.
Compared with the prior art the utility model has the following advantages:
1, when in pickling tub, mixing solutions reaches capacity, mixing solutions is transported in spent acid pond, and then the waste acid liquor handled well in separated and collected pond and reuse acid are transported in reuse acid pond and recycle, acid solution utilization ratio is high, pickling tub utilization ratio is high, and pickling efficiency is high;
2, in spent acid groove, add quantitative pure acid solution makes the ferrous ion in spent acid groove and acid-respons generate ferrous salt, and ferrous ion content is reduced, and waste acid liquor is recycled after recovery more effectively can dissolve ferrous ion;
3, in crystallization kettle, increase spiral coil cooling tube and agitator make spent acid and ferrous salt mixing solutions evenly lower the temperature fully, reduce the solubleness of ferrous salt, the crystallisation recoveries of ferrous salt is improved, the particle of ferrous salt is larger, quality is better, reuse acid purity after simultaneously making waste acid liquor reclaim improves further, is conducive to pickling iron and steel again;
4, unit increases jet aerator, makes the ferrous salt crystallization physical efficiency in separated and collected pond remove liquid fast, ensures the mass dryness fraction of ferrous salt crystal, makes ferrous salt become byproduct that is available, that have product phase.
Claims (4)
1. spent acid reuse and ferrous salt reclaim an outfit line, it is characterized in that: comprise pickling tub (1), spent acid pond (7), concentrated acid pond (5), crystallization kettle (15), separated and collected pond (32), reuse acid pond (37) and jet dehumidification drying device (25), the outlet of described pickling tub (1) is connected with the entrance end of the first valve (2), the exit end of the first valve (2) is connected with the entrance end of the first transferpump (3), the exit end of the first transferpump (3) is connected with the entrance end of the second valve (6) by the first transport pipe (4), the exit end of the second valve (6) is connected with first import of spent acid pond (7), second import in spent acid pond (7) is connected with the exit end of the second transferpump (10) by the second transport pipe (9), the entrance end of the second transferpump (10) is connected with the exit end of the 3rd valve (8), the entrance end of the 3rd valve (8) is connected with concentrated acid pond (5), the outlet of described spent acid pond (7) is connected with the entrance end of the 4th valve (11), the exit end of the 4th valve (11) is connected with the entrance end of the 3rd transferpump (12), the exit end of the 3rd transferpump (12) is connected with crystallization kettle (15) by the 3rd transport pipe (13), in crystallization kettle (15), arrange interchanger (14) and agitator (16), the upper end of agitator (16) is connected with motor (17) and wheel box (18), the outlet of described crystallization kettle (15) is connected with the entrance end of the 7th valve (29), the exit end of the 7th valve (29) is connected with separated and collected pond (32), filter bag (31) is set in separated and collected pond (32), the outlet in separated and collected pond (32) is connected with the entrance end of the 9th valve (36), the exit end of the 9th valve (36) is connected with the import of reuse acid pond (37), the outlet of reuse acid pond (37) is connected with the entrance end of the 8th valve (33), the exit end of the 8th valve (33) is connected with the entrance end of reuse acid transferpump (34), the exit end of reuse acid transferpump (34) is connected with the import of pickling tub (1).
2. spent acid reuse as claimed in claim 1 and ferrous salt reclaim outfit line, it is characterized in that: the import of described interchanger (14) is connected with freezing transferpump (20) by water pipe (19), freezing transferpump (20) is connected with the outlet of freezing unit (22) by the 5th valve (21), and the outlet of interchanger (14) is connected by the import of pipeline with freezing unit (22).
3. spent acid reuse as claimed in claim 1 and ferrous salt reclaim outfit line, it is characterized in that: described jet dehumidification drying device (25) comprises jet aerator (26), the entrance end of jet aerator (26) is connected with the exit end of water pump (24), entrance end and the jet of water pump (24) casing that dehumidifies is connected, and the exit end of jet aerator (26) and the bottom of separated and collected pond (32) are connected by the 6th valve (28).
4. spent acid reuse as claimed in claim 1 and ferrous salt reclaim outfit line, it is characterized in that: on described separated and collected pond (32), be provided with ferrous salt collect door (30).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520237622.6U CN204589308U (en) | 2015-04-17 | 2015-04-17 | Spent acid reuse and ferrous salt reclaim outfit line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520237622.6U CN204589308U (en) | 2015-04-17 | 2015-04-17 | Spent acid reuse and ferrous salt reclaim outfit line |
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| Publication Number | Publication Date |
|---|---|
| CN204589308U true CN204589308U (en) | 2015-08-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520237622.6U Expired - Fee Related CN204589308U (en) | 2015-04-17 | 2015-04-17 | Spent acid reuse and ferrous salt reclaim outfit line |
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| CN (1) | CN204589308U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111643923A (en) * | 2020-06-09 | 2020-09-11 | 温州吉象化学股份有限公司 | Preparation equipment and method for efficiently purifying ferrous salt for chemical reagent |
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2015
- 2015-04-17 CN CN201520237622.6U patent/CN204589308U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111643923A (en) * | 2020-06-09 | 2020-09-11 | 温州吉象化学股份有限公司 | Preparation equipment and method for efficiently purifying ferrous salt for chemical reagent |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150826 Termination date: 20160417 |