CN213256246U - Treatment system of allyl ether technology waste salt - Google Patents
Treatment system of allyl ether technology waste salt Download PDFInfo
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- CN213256246U CN213256246U CN202022142154.8U CN202022142154U CN213256246U CN 213256246 U CN213256246 U CN 213256246U CN 202022142154 U CN202022142154 U CN 202022142154U CN 213256246 U CN213256246 U CN 213256246U
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Abstract
The utility model provides a processing system of useless salt of allyl ether technology, includes the desiccator, dissolves cauldron, crystallization kettle, centrifuge, the desiccator is vacuum rake dryer, and the gas vent of vacuum rake dryer is used for being connected with evacuating device, and the bin outlet of vacuum rake dryer is through first pipeline to dissolving the cauldron feed, and the bin outlet of dissolving the cauldron passes through the second pipeline to the crystallization kettle feed, and this crystallization kettle's distillate outlet links to each other with the dissolution kettle through first backflow pipeline, the bin outlet of crystallization kettle passes through the third pipeline to the centrifuge feed, and this centrifuge's liquid bin outlet passes through the second backflow pipeline and links to each other with the crystallization kettle. The utility model discloses simple structure, running cost are low, can effectively separate, retrieve the waste salt that receives organic pollution, improve economic value, accord with the environmental protection requirement.
Description
Technical Field
The utility model relates to a chemical industry field, in particular to processing system of allyl ether technology waste salt.
Background
A certain amount of solid waste salt can be generated in the production process of the allyl ether by using an alkali raw material, the generated waste salt is in an initial state that oily uneven brown substances are adsorbed on the salt, and the waste salt is wet due to organic matter pollution in the preparation process to form solid waste, so that the method is dangerous waste and needs to be subjected to harmless treatment. The main contaminants are polyhydric alcohols, allyl ethers, and trace polymers, among others.
The waste salt pollutant is difficult to treat and separate, and at present, no effective treatment means exists, so that great obstacles are brought to the development of the product.
Therefore, how to effectively treat the waste salt polluted by organic matters is a problem to be solved by those skilled in the art.
Disclosure of Invention
The utility model aims at prior art's not enough, provide a processing system of useless salt of allyl ether technology, its simple structure, running cost are low, can effectively separate, retrieve the useless salt that is polluted by the organic matter, improve economic value, accord with the environmental protection requirement.
The technical scheme of the utility model is that: the utility model provides a processing system of useless salt of allyl ether technology, includes the desiccator, dissolves cauldron, crystallization kettle, centrifuge, the desiccator is vacuum rake dryer, and the gas vent of vacuum rake dryer is used for being connected with evacuating device, and the bin outlet of vacuum rake dryer is through first pipeline to dissolving the cauldron feed, and the bin outlet of dissolving the cauldron passes through the second pipeline to the crystallization kettle feed, and this crystallization kettle's distillate outlet links to each other with the dissolution kettle through first backflow pipeline, the bin outlet of crystallization kettle passes through the third pipeline to the centrifuge feed, and this centrifuge's liquid bin outlet passes through the second backflow pipeline and links to each other with the crystallization kettle.
And a filter is arranged on the second pipeline.
And a solid discharge port of the centrifugal machine is connected with the second drying machine through a fourth pipeline.
And a condenser is arranged at the downstream end of the vacuumizing device.
Adopt above-mentioned technical scheme to have following beneficial effect:
1. the system for treating the waste salt in the allyl ether process comprises a dryer, a dissolving kettle, a crystallization kettle and a centrifuge. The desiccator is vacuum rake dryer, the gas vent of vacuum rake dryer is used for being connected with evacuating device, the bin outlet of vacuum rake dryer passes through first pipeline to dissolving the cauldron feed, the wet form waste salt that receives organic matter pollution gets into in the vacuum rake dryer, because the boiling point of technology waste salt is less than organic pollutant far away, this kind of wet form waste salt is through heating, volatilize the organic pollutant of adsorbing on the waste salt like polyhydric alcohol, allyl ether etc. and discharge vacuum rake dryer through the gas vent, leave comparatively pure solid-state salt, get into the dissolving kettle, utilize the big characteristics of salt solubility, utilize water to dissolve, obtain the salt solution. The bin outlet of dissolving kettle passes through the second pipeline and to the crystallization kettle feed, and this crystallization kettle's distillate outlet links to each other with dissolving kettle through first return line, dissolves in the dissolving kettle and gets into crystallization kettle through the second pipeline to obtain salt solution, and unnecessary moisture in the salt solution distills out, flows back to dissolving kettle through first return line in, as the solvent, and the material crystallization in the crystallization kettle obtains supersaturated solution. The discharge gate of crystallization kettle passes through the third pipeline and supplies the centrifuge, and this centrifuge's liquid discharge gate passes through the second return line and links to each other with crystallization kettle, and the supersaturated solution gets into centrifuge and centrifugation, separates crystal and mother liquor wherein, and the crystal remains in centrifuge, obtains pure salt product for downstream technology continues to process, if dry, obtains the target product, and the mother liquor that the centrifugation obtained returns the crystallization kettle through the second return line in, can promote the salt solution crystallization in the crystallization kettle. The salt obtained in the way can be directly used as a raw material or used as a commodity to supply goods to the outside, and the solid waste salt is effectively recycled.
2. And a filter is arranged on the second pipeline and used for filtering out insoluble solids in the salt solution, ensuring that the salt solution in the crystallization kettle is crystallized smoothly and ensuring the purity of subsequent products.
3. The solid discharge port of the centrifuge is connected with the second dryer through a fourth pipeline for drying the wet pure salt, so that the storage is convenient.
4. The downstream end of the vacuumizing device is provided with a condenser for cooling organic steam discharged by the vacuum rake dryer into liquid state, and the organic steam is reused as raw material, so that the organic steam in the gas state is prevented from being discharged outside, and the environmental protection requirement is effectively met.
The following further description is made with reference to the accompanying drawings and detailed description.
Drawings
Fig. 1 is a schematic connection diagram of the present invention.
In the attached drawing, 1 is a dryer, 2 is a dissolution kettle, 3 is a crystallization kettle, 4 is a centrifuge, 5 is a vacuumizing device, 6 is a filter, 7 is a second dryer, 8 is a condenser, a is a first pipeline, b is a second pipeline, c is a third pipeline, d is a fourth pipeline, 11 is a first return pipeline, and 12 is a second return pipeline.
Detailed Description
The utility model discloses in, equipment or structure that do not mark is the common equipment or structure in chemical industry field usually, does not mark concrete connection mode or mounting means, connects or installs according to the conventional or trade company's guide mode in chemical industry field usually.
Referring to fig. 1, a specific embodiment of a system for treating waste salt from allyl ether process is shown. The system for treating the waste salt in the allyl ether process comprises a dryer 1, a dissolving kettle 2, a crystallization kettle 3 and a centrifuge 4. Desiccator 1 is vacuum rake dryer, this vacuum rake dryer's feed inlet is used for linking to each other with the useless salt source of damp form, vacuum rake dryer's gas vent is used for being connected with evacuating device 5, vacuum rake dryer's bin outlet is through first pipeline an to dissolving kettle 2 feed, concretely, evacuating device 5's downstream end is equipped with condenser 8, be used for with the condensing of evacuating device combustion gas material for liquid, and separate step by step, obtain corresponding organic matter, recycle is as raw materials for production, it is obvious, be equipped with the water inlet on the dissolving kettle. The bin outlet of dissolving kettle 2 passes through second pipeline b to crystallization kettle 3 feed, and this crystallization kettle 3's distillate outlet links to each other with dissolving kettle 2 through first return line 11, and is specific, is equipped with filter 6 on the second pipeline for filter dissolving kettle exhaust salt solution, and insoluble solid wherein is held back, avoids these insoluble solids to get into in the crystallization kettle. The bin outlet of crystallization kettle 3 passes through third pipeline c and links to each other with crystallization kettle 3 to 4 feeds of centrifuge, and this centrifuge 4's liquid bin outlet passes through second backflow pipeline 12 and links to each other with crystallization kettle 3, obtains salt in order to make things convenient for the storage, and centrifuge 4's solid bin outlet passes through fourth pipeline d and links to each other with second desiccator 7, and the second desiccator is used for dehydrating moist salt, obtains dry salt, can regard as raw materials for production, perhaps sells as the product to the outside.
The utility model discloses an operating principle does, is stained with the wet form waste salt of organic matters such as polyhydroxy alcohol, allyl ether, gets into vacuum rake dryer after, under the high temperature condition, carries out vacuum decompression drying, and the organic matter of adhesion is taken out as far as possible on the waste salt, accomplishes with the waste salt and breaks away from, and these organic matters pass through the condenser condensation and are liquid for recycle stops external emission. And (2) feeding the separated primary salt into a dissolving kettle, adding water to dissolve the primary salt into a salt solution, filtering the salt solution to remove insoluble solids, evaporating, concentrating and crystallizing the obtained filtered salt solution, evaporating to obtain steam, returning the steam to the dissolving kettle to be used as a solvent, feeding the concentrated supersaturated solution into a centrifugal machine, centrifuging and filtering to obtain refined crystal salt, drying the refined crystal salt again to obtain dried salt, recycling the dried salt as a production raw material, or directly selling the salt to the outside, and returning the mother liquor obtained by centrifuging to the crystallizing kettle. The process the utility model discloses the waste salt that processing system handled, the organic matter of various separations has mostly carried out recycle, and the refined salt quality after handling reaches the enterprise standard, can be used as the raw materials by relevant enterprise, and this has remedied the treatment cost of waste salt to a certain extent, and the total emission pollution volume is very low simultaneously.
Claims (4)
1. A processing system of allyl ether technology waste salt which characterized in that: comprises a drier (1), a dissolving kettle (2), a crystallization kettle (3) and a centrifuge (4),
the dryer (1) is a vacuum rake dryer, an exhaust port of the vacuum rake dryer is used for being connected with a vacuumizing device (5), a discharge port of the vacuum rake dryer supplies materials to the dissolving kettle (2) through a first pipeline (a), a discharge port of the dissolving kettle (2) supplies materials to the crystallization kettle (3) through a second pipeline (b), a distillate outlet of the crystallization kettle (3) is connected with the dissolving kettle (2) through a first backflow pipeline (11),
the discharge outlet of the crystallization kettle (3) supplies materials to the centrifuge (4) through a third pipeline (c), and the liquid discharge outlet of the centrifuge (4) is connected with the crystallization kettle (3) through a second backflow pipeline (12).
2. The system for treating allyl ether process waste salt according to claim 1, wherein: and a filter (6) is arranged on the second pipeline (b).
3. The system for treating allyl ether process waste salt according to claim 1, wherein: the solid discharge outlet of the centrifuge (4) is connected with the second dryer (7) through a fourth pipeline (d).
4. The system for treating allyl ether process waste salt according to claim 1, wherein: and a condenser (8) is arranged at the downstream end of the vacuumizing device (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022142154.8U CN213256246U (en) | 2020-09-24 | 2020-09-24 | Treatment system of allyl ether technology waste salt |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202022142154.8U CN213256246U (en) | 2020-09-24 | 2020-09-24 | Treatment system of allyl ether technology waste salt |
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| CN213256246U true CN213256246U (en) | 2021-05-25 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114053978A (en) * | 2021-11-25 | 2022-02-18 | 上海师范大学 | Metal-containing waste purification device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114053978A (en) * | 2021-11-25 | 2022-02-18 | 上海师范大学 | Metal-containing waste purification device |
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