CN105110502A - Apparatus for removing impurities from and recovering sulfuric acid waste liquid - Google Patents
Apparatus for removing impurities from and recovering sulfuric acid waste liquid Download PDFInfo
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- CN105110502A CN105110502A CN201510510618.7A CN201510510618A CN105110502A CN 105110502 A CN105110502 A CN 105110502A CN 201510510618 A CN201510510618 A CN 201510510618A CN 105110502 A CN105110502 A CN 105110502A
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- waste liquid
- sulfuric acid
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- impurities
- rinse bath
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- Inorganic Compounds Of Heavy Metals (AREA)
Abstract
The present invention discloses an apparatus for removing impurities from and recovering sulfuric acid waste liquid. The apparatus comprises: a waste liquid tank, an extraction groove, a waste acid storage vessel, a first washing groove, a reaction kettle, a second washing groove, a filter groove and a filter press. An acid pump is arranged between the waste liquid tank and the extraction groove; two ends of the acid pump are separately connected to the waste liquid tank and the extraction groove by pipes; the extraction groove is separately connected to the waste liquid storage vessel and the first washing groove by pipes; the first washing groove is connected to the reaction kettle; the reaction kettle is separately connected to the filter groove and the second washing groove by pipes; the filter groove is connected to the filter press; and the second washing groove is connected to the extraction groove by a pipe. According to the apparatus for removing impurities from and recovering sulfuric acid waste liquid provided by the present invention, impurities are removed from the sulfuric acid waste liquid, and the sulfuric acid waste liquid from which the impurities are removed serves as a raw material for producing polyferric sulfate, so that the heavy metal content in a polyferric sulfate product is effectively reduced; the rare metal contained in the sulfuric acid waste liquid can also be recycled; the extraction agent can be recycled; the overall layout of the recovery apparatus effectively reduces the processing time; and the apparatus is low in cost, easy in operation and free of pollution.
Description
Technical field
The present invention relates to waste reclaiming device technical field, particularly relate to a kind of sulfuric acid waste removal of impurities retrieving arrangement.
Background technology
Current industrial enterprise can produce a large amount of sulfuric acid waste, if sulfuric acid waste directly discharges, not only can make water body and soil acidification, work the mischief to ecotope, and waste ample resources.Have at present by the raw materials for production of sulfuric acid waste as bodied ferric sulfate, but containing heavy metal in sulfuric acid waste, if be directly used as to produce bodied ferric sulfate, the quality of polyaluminum sulfate iron product can be affected, therefore sulfuric acid waste is before for the production of bodied ferric sulfate, needs to carry out removal of impurities.
Summary of the invention
The object of this invention is to provide a kind of sulfuric acid waste removal of impurities retrieving arrangement, removal of impurities can be carried out to sulfuric acid waste, sulfuric acid waste after removal of impurities can be used as the raw materials for production of bodied ferric sulfate, effectively reduce the heavy metal content in polyaluminum sulfate iron product, bodied ferric sulfate quality product is made to reach high-quality, the rare metal wherein contained can be recycled simultaneously, there is certain economic benefit, and extraction agent reusable edible, the layout of whole retrieving arrangement has saved the time of technique fully, cost is low, easy to operate, pollution-free.
The technical solution used in the present invention is as follows:
A kind of sulfuric acid waste removal of impurities retrieving arrangement, comprise waste liquid pool, extraction tank, spent acid basin, first rinse bath, reactor, second rinse bath, filter vat and pressure filter, sour pump is provided with between described waste liquid pool and extraction tank, described sour pump two ends connect waste liquid pool and extraction tank respectively by pipeline, and the sulfuric acid waste supernatant liquor of precipitated form in waste liquid pool is evacuated to extraction tank extracts, described extraction tank connects waste liquor storage tank and the first rinse bath respectively by pipeline, described first rinse bath ligation still, reactor connects filter vat and the second rinse bath respectively by pipeline, described filter vat connects pressure filter, second rinse bath connects extraction tank by pipeline.
Pipeline between the second described rinse bath and extraction tank is provided with control valve.
Described waste liquid pool is divided into two-layer up and down with coarse filtration plate, upper strata is settling tank, and lower floor is filtering basin, and settling tank avris is provided with sewage draining valve.
The pipeline of the sour pump of described connection waste liquid pool extends filtering basin bottom.
When the present invention uses, the sulfuric acid waste in waste liquid pool staticly settles, and supernatant liquor enters extraction tank by sour pump and extracts, and the removal of impurities spent acid after extraction enters spent acid basin, can be used as the raw materials for production of bodied ferric sulfate; What obtain after extraction enters the first rinse bath containing rare metal organic phase, by entering reactor after sulfuric acid scrubbing, back extraction is carried out with alkali lye in reactor, obtain strip liquor and waste liquid, strip liquor enters filter vat filtration and obtains impurity filtrate, then obtain filter cake by pressure filter press filtration, filter cake is recycled; Waste liquid enters the second rinse bath, and through sulfuric acid scrubbing, the extraction agent obtaining regenerating can cycling and reutilization.
Compared with the prior art, beneficial effect of the present invention is as follows:
Sulfuric acid waste removal of impurities retrieving arrangement of the present invention, removal of impurities can be carried out to sulfuric acid waste, sulfuric acid waste after removal of impurities can be used as the raw materials for production of bodied ferric sulfate, effectively reduce the heavy metal content in polyaluminum sulfate iron product, bodied ferric sulfate quality product is made to reach high-quality, the rare metal wherein contained can be recycled simultaneously, there is certain economic benefit, and extraction agent reusable edible, the layout of whole retrieving arrangement has saved the time of technique fully, cost is low, easy to operate, does not produce pollution.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Embodiment
Below in conjunction with embodiment and accompanying drawing, the invention will be further described.
See accompanying drawing 1, a kind of sulfuric acid waste removal of impurities retrieving arrangement, comprise waste liquid pool 1, extraction tank 2, spent acid basin 3, first rinse bath 4, reactor 5, second rinse bath 6, filter vat 7 and pressure filter 8, described waste liquid pool 1 is divided into two-layer up and down with coarse filtration plate 9, upper strata is settling tank 101, lower floor is filtering basin 102, settling tank 101 avris is provided with sewage draining valve 10, sour pump 11 is provided with between described waste liquid pool 1 and extraction tank 2, described sour pump 11 two ends connect waste liquid pool 1 and extraction tank 2 respectively by pipeline, the pipeline of the sour pump of described connection waste liquid pool 1 extends filtering basin 102 bottom, and the sulfuric acid waste supernatant liquor of precipitated form in waste liquid pool 1 is evacuated to extraction tank 2 extracts, described extraction tank 2 connects waste liquor storage tank 3 and the first rinse bath 4 respectively by pipeline, described first rinse bath 4 ligation still 5, reactor 5 connects filter vat 7 and the second rinse bath 6 respectively by pipeline, described filter vat 7 connects pressure filter 8, second rinse bath 6 connects extraction tank 2 by pipeline, pipeline between the second described rinse bath 6 and extraction tank 2 is provided with control valve 12.When the present invention uses, the sulfuric acid waste in waste liquid pool 1 staticly settles, and supernatant liquor enters extraction tank 2 by sour pump 11 and extracts, and the removal of impurities spent acid after extraction enters spent acid basin 3, can be used as the raw materials for production of bodied ferric sulfate; What obtain after extraction enters the first rinse bath 4 containing rare metal organic phase, by entering reactor 5 after sulfuric acid scrubbing, back extraction is carried out with alkali lye in reactor 5, obtain strip liquor and waste liquid, strip liquor enters filter vat 7 filtration and obtains impurity filtrate, then obtain filter cake by pressure filter 8 press filtration, filter cake is recycled; Waste liquid enters the second rinse bath 6, and through sulfuric acid scrubbing, the extraction agent obtaining regenerating can cycling and reutilization.Sulfuric acid waste removal of impurities retrieving arrangement of the present invention, removal of impurities can be carried out to sulfuric acid waste, sulfuric acid waste after removal of impurities can be used as the raw materials for production of bodied ferric sulfate, effectively reduce the heavy metal content in polyaluminum sulfate iron product, bodied ferric sulfate quality product is made to reach high-quality, the rare metal wherein contained can be recycled simultaneously, there is certain economic benefit, and extraction agent reusable edible, the layout of whole retrieving arrangement has saved the time of technique fully, cost is low, easy to operate, does not produce pollution.
Claims (4)
1. a sulfuric acid waste removal of impurities retrieving arrangement, it is characterized in that: comprise waste liquid pool, extraction tank, spent acid basin, first rinse bath, reactor, second rinse bath, filter vat and pressure filter, sour pump is provided with between described waste liquid pool and extraction tank, described sour pump two ends connect waste liquid pool and extraction tank respectively by pipeline, and the sulfuric acid waste supernatant liquor of precipitated form in waste liquid pool is evacuated to extraction tank extracts, described extraction tank connects waste liquor storage tank and the first rinse bath respectively by pipeline, described first rinse bath ligation still, reactor connects filter vat and the second rinse bath respectively by pipeline, described filter vat connects pressure filter, second rinse bath connects extraction tank by pipeline.
2. sulfuric acid waste removal of impurities retrieving arrangement according to claim 1, is characterized in that: the pipeline between the second described rinse bath and extraction tank is provided with control valve.
3. sulfuric acid waste removal of impurities retrieving arrangement according to claim 1, it is characterized in that: described waste liquid pool is divided into two-layer up and down with coarse filtration plate, upper strata is settling tank, and lower floor is filtering basin, and settling tank avris is provided with sewage draining valve.
4. sulfuric acid waste removal of impurities retrieving arrangement according to claim 3, is characterized in that: the pipeline of the sour pump of described connection waste liquid pool extends filtering basin bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510510618.7A CN105110502A (en) | 2015-08-18 | 2015-08-18 | Apparatus for removing impurities from and recovering sulfuric acid waste liquid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510510618.7A CN105110502A (en) | 2015-08-18 | 2015-08-18 | Apparatus for removing impurities from and recovering sulfuric acid waste liquid |
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|---|---|
| CN105110502A true CN105110502A (en) | 2015-12-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510510618.7A Pending CN105110502A (en) | 2015-08-18 | 2015-08-18 | Apparatus for removing impurities from and recovering sulfuric acid waste liquid |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107539959A (en) * | 2017-08-25 | 2018-01-05 | 金川集团股份有限公司 | A kind of sulfuric acid waste reclaiming clean device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4986917A (en) * | 1989-07-10 | 1991-01-22 | First Chemical Corporation | Selective recovery of a nitrophenolic by-product from nitration waste water by extraction |
| CN204918242U (en) * | 2015-08-18 | 2015-12-30 | 铜陵海陵环保科技有限责任公司 | Sulphuric acid waste liquid edulcoration recovery unit |
-
2015
- 2015-08-18 CN CN201510510618.7A patent/CN105110502A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4986917A (en) * | 1989-07-10 | 1991-01-22 | First Chemical Corporation | Selective recovery of a nitrophenolic by-product from nitration waste water by extraction |
| CN204918242U (en) * | 2015-08-18 | 2015-12-30 | 铜陵海陵环保科技有限责任公司 | Sulphuric acid waste liquid edulcoration recovery unit |
Non-Patent Citations (1)
| Title |
|---|
| 何林生: "从钛白浓废酸中提钪及其经济效益", 《环境工程》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107539959A (en) * | 2017-08-25 | 2018-01-05 | 金川集团股份有限公司 | A kind of sulfuric acid waste reclaiming clean device |
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Application publication date: 20151202 |
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| RJ01 | Rejection of invention patent application after publication |