CN102911779A - Solid-liquid separation process through plate-frame pressure filtration in cutting fluid recovery - Google Patents
Solid-liquid separation process through plate-frame pressure filtration in cutting fluid recovery Download PDFInfo
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- CN102911779A CN102911779A CN2012104279058A CN201210427905A CN102911779A CN 102911779 A CN102911779 A CN 102911779A CN 2012104279058 A CN2012104279058 A CN 2012104279058A CN 201210427905 A CN201210427905 A CN 201210427905A CN 102911779 A CN102911779 A CN 102911779A
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- filter cake
- plate
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- clear water
- filter
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Abstract
The invention relates to a solid-liquid separation process through plate-frame pressure filtration in cutting fluid recovery. The process comprises the steps as follows: firstly pouring waste mortar into a reservoir I and adding a certain proportion of clear water, stirring and diluting, warming the mixture in a reaction kettle, feeding the mixture to a plate-frame filter press for primary filtering, separating primary filtrate and a filter cake I, feeding the clear water into the plate-frame filter press to clean the filter cake I to obtain primary cleaning fluid, allowing the primary filtrate to enter a decoloration procedure for continuous processing, and recycling the primary cleaning fluid into the reservoir I as dilution water; secondly, placing the filter cake I into a reservoir II and adding a certain proportion of clear water, stirring and diluting, and then conducting secondary plate-frame filtration, separating secondary filtrate and a filter cake II, then feeding clear water into the plate-frame filter press to clean the filter cake II to obtain secondary cleaning fluid, recycling the secondary filtrate and the secondary cleaning fluid into the reservoir I as dilution water, and bagging the filter cake II. According to the process, the cutting fluid remained in the filter cakes can be washed out, the residual amount of the cutting fluid in the filter cakes is reduced, and the recovery rate of the cutting fluid can be increased.
Description
Technical field
The present invention relates to the filter press solid-liquid separation process in a kind of cutting liquid recovery.
Background technology
Filter press solid-liquid separation process during the cutting liquid that adopts at present reclaims is: pour waste mortar in the reservoir one a certain proportion of clear water of adding, through agitation and dilution, enter and squeeze into plate-and-frame filter press after reactor is heated and once filter, be separated into first-time filtrate and filter cake one, first-time filtrate enters bleaching process and continues processing, filter cake adds a certain proportion of clear water once again in reservoir two, through agitation and dilution, carry out again the secondary Plate Filtration, be separated into secondary filtrate and filter cake two, as diluting water, second filter cake packs and gets final product the secondary filtrate recycle to reservoir one.In aforesaid method, the filter cake two behind the secondary filtration is still residual to have more cutting liquid not to be extracted, and therefore, causes the rate of recovery of cutting liquid lower.
Summary of the invention
The purpose of this invention is to provide the filter press solid-liquid separation process in a kind of cutting liquid recovery that can improve the rate of recovery.
The technical scheme that the present invention takes is: the filter press solid-liquid separation process during a kind of cutting liquid reclaims, it is characterized in that at first, pour waste mortar in the reservoir one a certain proportion of clear water of adding, through agitation and dilution, enter and squeeze into plate-and-frame filter press after reactor is heated and once filter, be separated into first-time filtrate and filter cake one, afterwards clear water is squeezed into plate-and-frame filter press filter cake one is cleaned to get a scavenging solution, above-mentioned first-time filtrate enters bleaching process and continues processing, and one time scavenging solution is back to use reservoir one as diluting water; Secondly, filter cake adds a certain proportion of clear water once in the reservoir two and carries out agitation and dilution again, carry out again the secondary Plate Filtration, be separated into secondary filtrate and filter cake two, afterwards clear water is squeezed into plate-and-frame filter press filter cake two is cleaned to get secondary cleaning liquid, above-mentioned secondary filtrate and secondary cleaning liquid are back to use reservoir one in the lump as diluting water, and second filter cake packs and get final product.
Adopt the present invention, can reduce the residual quantity of the cutting liquid in the filter cake remaining in cutting liquid in the filter cake to coming out, just can improve the rate of recovery of cutting liquid.
Embodiment
Below in conjunction with specific embodiment invention is described further.Its operation is as follows:
At first, pour waste mortar in the reservoir one a certain proportion of clear water of adding, through agitation and dilution, enter and utilize impeller pump to squeeze into plate-and-frame filter press after reactor is heated once to filter, be separated into first-time filtrate and filter cake one, afterwards clear water is utilized impeller pump to squeeze into plate-and-frame filter press filter cake one is cleaned to get a scavenging solution, above-mentioned first-time filtrate enters bleaching process and continues processing, and one time scavenging solution is back to use reservoir one as diluting water.
Secondly, filter cake adds a certain proportion of clear water once in the reservoir two and carries out agitation and dilution again, carry out again the secondary Plate Filtration, be separated into secondary filtrate and filter cake two, afterwards clear water is utilized impeller pump to squeeze into plate-and-frame filter press filter cake two is cleaned to get secondary cleaning liquid, above-mentioned secondary filtrate and secondary cleaning liquid are back to use reservoir one in the lump as diluting water, and second filter cake packs and get final product.
Claims (1)
1. the filter press solid-liquid separation process during a cutting liquid reclaims, it is characterized in that at first, pour waste mortar in the reservoir one a certain proportion of clear water of adding, through agitation and dilution, enter and squeeze into plate-and-frame filter press after reactor is heated and once filter, be separated into first-time filtrate and filter cake one, afterwards clear water is squeezed into plate-and-frame filter press filter cake one is cleaned to get a scavenging solution, above-mentioned first-time filtrate enters bleaching process and continues processing, and one time scavenging solution is back to use reservoir one as diluting water; Secondly, filter cake adds a certain proportion of clear water once in the reservoir two and carries out agitation and dilution again, carry out again the secondary Plate Filtration, be separated into secondary filtrate and filter cake two, afterwards clear water is squeezed into plate-and-frame filter press filter cake two is cleaned to get secondary cleaning liquid, above-mentioned secondary filtrate and secondary cleaning liquid are back to use reservoir one in the lump as diluting water, and second filter cake packs and get final product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104279058A CN102911779A (en) | 2012-11-01 | 2012-11-01 | Solid-liquid separation process through plate-frame pressure filtration in cutting fluid recovery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104279058A CN102911779A (en) | 2012-11-01 | 2012-11-01 | Solid-liquid separation process through plate-frame pressure filtration in cutting fluid recovery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102911779A true CN102911779A (en) | 2013-02-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012104279058A Pending CN102911779A (en) | 2012-11-01 | 2012-11-01 | Solid-liquid separation process through plate-frame pressure filtration in cutting fluid recovery |
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| CN (1) | CN102911779A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103601199A (en) * | 2013-10-14 | 2014-02-26 | 浙江晶盛硅晶材料有限公司 | Method for preparing silica sol by using waste mortar produced by cutting wafers |
| CN105481938A (en) * | 2016-01-22 | 2016-04-13 | 竹山县鑫源皂素有限责任公司 | Acid cleaning method for hydrolyzed dioscoreae zingiberensis filter residues |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102108317A (en) * | 2011-01-12 | 2011-06-29 | 陕西德盛新能源有限公司 | Separation and purification method of silicon wafer cutting waste mortar |
| CN102259863A (en) * | 2010-05-31 | 2011-11-30 | 溧阳汉达电子材料有限公司 | Method for processing used cutting mortar |
| CN102557031A (en) * | 2011-12-27 | 2012-07-11 | 双流新源圣光科技有限公司 | Method for recycling silicon carbide in waste silicon slice cutting mortar |
-
2012
- 2012-11-01 CN CN2012104279058A patent/CN102911779A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102259863A (en) * | 2010-05-31 | 2011-11-30 | 溧阳汉达电子材料有限公司 | Method for processing used cutting mortar |
| CN102108317A (en) * | 2011-01-12 | 2011-06-29 | 陕西德盛新能源有限公司 | Separation and purification method of silicon wafer cutting waste mortar |
| CN102557031A (en) * | 2011-12-27 | 2012-07-11 | 双流新源圣光科技有限公司 | Method for recycling silicon carbide in waste silicon slice cutting mortar |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103601199A (en) * | 2013-10-14 | 2014-02-26 | 浙江晶盛硅晶材料有限公司 | Method for preparing silica sol by using waste mortar produced by cutting wafers |
| CN105481938A (en) * | 2016-01-22 | 2016-04-13 | 竹山县鑫源皂素有限责任公司 | Acid cleaning method for hydrolyzed dioscoreae zingiberensis filter residues |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130206 |