CN104046504A - Online recycling process for solar silicon wafer cutting mortar - Google Patents
Online recycling process for solar silicon wafer cutting mortar Download PDFInfo
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- CN104046504A CN104046504A CN201410253489.3A CN201410253489A CN104046504A CN 104046504 A CN104046504 A CN 104046504A CN 201410253489 A CN201410253489 A CN 201410253489A CN 104046504 A CN104046504 A CN 104046504A
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Abstract
The invention relates to an online recycling process for solar silicon wafer cutting mortar. The process comprises the following steps: carrying out raw stock injecting and stirring; mixing and stirring; carrying out heat exchange; carrying out settling separation to obtain solid-phase and liquid-phase parts; conveying the solid-phase part to a transfer cylinder after re-mixing and carrying out heat exchanger; inputting the liquid-phase part to a liquid storage transfer cylinder in a unified manner; carrying out filtering, filter-pressing, fine-filtering on liquid in the liquid storage transfer cylinder, adding deionized water for stirring, adding active carbon for discoloring, carrying out ion exchange, carrying out distillation/dehydration, and carrying out fine-filtering again to obtain fine filtrate, inputting the obtained fine filtrate to the transfer cylinder filled with the solid-phase part, and stirring; stirring to obtain primary reclaimed materials and inputting into a reclaimed mortar mixing tank; and inputting the new mortar into the reclaimed mortar mixing tank and stirring to obtain reclaimed mortar satisfying requirements. The online recycling process for solar silicon wafer cutting mortar, which is disclosed by the invention, is low in recycling cost, environment-friendly and water-saving.
Description
Technical field
The present invention relates to a kind of mortar recovery process, especially relate to a kind ofly for the waste mortar of sun power cutting technique being carried out to the technique of online recycling recycling, belong to solar energy industry technical field.
Background technology
At present, in the production process of solar panel, for reducing costs, water saving, need to recycle with mortar silicon chip cutting in sun power production process, the one " environment-friendly type mortar recovery process " of announcing as Chinese patent 201210272540.6, it can be by waste mortar recycling, but need to first the waste slurry of solar silicon wafers cleavable site be collected, after collection, recycle place concentrated transporting to, the mortar having recycled is transported solar silicon wafers cleavable site back again and is carried out recycle, need thus to expend a large amount of logistics costs, and corresponding manpower, virtually increase the production cost of enterprise.
Summary of the invention
The object of the invention is to overcome above-mentioned deficiency, a kind of solar silicon wafers cutting mortar online recycling technique that can effectively reduce production costs is provided.
The object of the present invention is achieved like this: a kind of mortar online recycling technique for solar silicon wafers cutting, and described technique includes following steps:
Step 1, magma filling and stirring: the waste mortar after silicon chip cutter is used is that magma is extracted unified collection surely out, and the magma of having collected is quantitatively transferred in magma a mixing bowl and is stirred, simultaneously in smart filtrate tanks by magma once quantitatively 0.5 ~ 1 times of operational throughput input cutting stoste use smart filtrate as starting, in the process of stirring, utilize the smart filtrate in smart filtrate tanks that magma proportion is allocated to 1.5 ~ 1.7kg/l;
Such as by pneumatic diaphragm pump by magma by 4(cubic meter/batch) amount be delivered to magma a mixing bowl, the so disposable cutting stoste (being silicon chip cutter new product cutting liquid used or qualified recovery cutting liquid) that drops into 2 ~ 4 cubic metres in smart filtrate tanks, this input is disposable, and the later stage is without again dropping into;
Step 2, allotment: in the magma that is 1.5 ~ 1.7kg/l through the proportion stirring by volume pump by 1 ‰ ~ 5 ‰ proportion charging high efficiency separation auxiliary agent, this auxiliary agent is mainly made up of high molecular polymer, tensio-active agent and dispersion agent, improve the dispersing property of silicon powder particle in magma by this auxiliary agent, reduce the adsorptive power of SIC particle surface silica flour;
Step 3, stirring: the magma that adds high efficiency separation auxiliary agent is fully stirred, and churning time was guaranteed more than 1 hour.
Step 4, the allotment magma that step 3 is obtained are injected heat exchange system by hose pump;
Step 5, the magma input horizontal spiral discharge sedimentation centrifuge that meets processing requirement temperature that step 4 is obtained, separate and obtain solid phase part and liquid phase part;
Step 6, the solid phase part obtaining by step 5 is allocated with the smart filtrate in smart filtrate tanks again, proportion target value is 1.5 ~ 1.7kg/l;
Step 7, the mortar that step 6 is obtained inject heat exchange system by hose pump;
Step 8, the mortar input horizontal spiral discharge sedimentation centrifuge that meets processing requirement temperature that step 7 is obtained, separate and obtain solid phase part and liquid phase part;
Step 9, the solid phase part obtaining by step 8 is delivered to transferring cylinder by surge pump;
Step 10, the unified input of the liquid phase part liquid storage transferring cylinder that step 5 and step 8 are obtained;
Step 11, the liquid in liquid storage transferring cylinder is added to a kind of major ingredient is the efficient press filtration auxiliary agent of silicon-dioxide, and this auxiliary agent has special hole and contour structures, thereby has very high filter effect; Interpolation usage quantity is 1 ~ 10kg/m
3, stir;
Step 12, the liquid phase part stirring in step 11 is delivered into Filter Press by impeller pump;
Step 13, the clarified liq that process Filter Press is obtained are delivered to clear liquor storage tank;
Step 14, the clear liquor in clear liquor storage tank is injected to smart filtrate tanks by impeller pump, obtain smart filtrate;
Step 15, by smart filtrate in adding deionized water and stirring between processing requirement ratio 1:1 to 1:1.1;
Step 16, in the filtrate that adds deionized water, add gac to decolour;
Step 17, the filtrate of decolouring is carried out to press filtration obtain clarifying water white transparency filtrate;
Step 18, the colourless transparent liquid that press filtration is obtained are processed by ion exchanger;
Step 19, the purification liquid that process ion exchange treatment is obtained carry out distillation dehydration processing;
Step 20, will obtain smart filtrate by secondary filter filtration treatment through the liquid of distillation dehydration processing;
Step 21, the smart filtrate in step 20 is allocated by the transferring cylinder in volume pump implantation step 10, in this process, between 1.630 ~ 1.660kg/l, (set exact value according to cutting technique) by the on-line monitoring control specific gravity range of proportion under meter and obtain online recycling mortar;
Step 22, online recycling mortar is delivered to regeneration mortar Mixer pot by pneumatic diaphragm pump;
Step 23, preprepared sand and liquid are pressed to slice process proportion set configuration, stir and obtain new mortar after 6 hours, by volume pump, new mortar is delivered to the regeneration mortar Mixer pot in step 22 in technique initialization ratio, through fully stirring the regeneration mortar that obtains meeting the requirements of the customers;
Step 24, the satisfactory regeneration mortar obtaining are quantitatively transferred to slicing machine circulation cutting by customer by the mode of Weighing and utilize.
Compared with prior art, the invention has the beneficial effects as follows:
Technique of the present invention is simple, easy to operate, by online Recycle design, without expending a large amount of logistics transportation costs, greatly reduces the production cost of solar panel manufacturing enterprise.
Embodiment
A kind of solar silicon wafers cutting mortar online recycling technique the present invention relates to, described technique includes following steps:
Step 1, magma filling and stirring: the waste mortar after silicon chip cutter is used is that magma is extracted unified collection surely out, and the magma of having collected is quantitatively transferred in magma a mixing bowl and is stirred, simultaneously in smart filtrate tanks by magma once quantitatively 0.5 ~ 1 times of operational throughput input cutting stoste use smart filtrate as starting, in the process of stirring, utilize the smart filtrate in smart filtrate tanks that magma proportion is allocated to 1.5 ~ 1.7kg/l;
Such as by pneumatic diaphragm pump by magma by 4(cubic meter/batch) amount be delivered to magma a mixing bowl, the so disposable cutting stoste (being silicon chip cutter new product cutting liquid used or qualified recovery cutting liquid) that drops into 2 ~ 4 cubic metres in smart filtrate tanks, this input is disposable, and the later stage is without again dropping into;
Step 2, allotment: in the magma that is 1.5 ~ 1.7kg/l through the proportion stirring by volume pump by 1 ‰ ~ 5 ‰ proportion charging high efficiency separation auxiliary agent, this auxiliary agent is mainly made up of high molecular polymer, tensio-active agent and dispersion agent, improve the dispersing property of silicon powder particle in magma by this auxiliary agent, reduce the adsorptive power of SIC particle surface silica flour;
Step 3, stirring: the magma that adds high efficiency separation auxiliary agent is fully stirred, and churning time was guaranteed more than 1 hour.
Step 4, the allotment magma that step 3 is obtained are injected heat exchange system by hose pump;
Step 5, the magma input horizontal spiral discharge sedimentation centrifuge that meets processing requirement temperature that step 4 is obtained, separate and obtain solid phase part and liquid phase part;
Step 6, the solid phase part obtaining by step 5 is allocated with the smart filtrate in smart filtrate tanks again, proportion target value is 1.5 ~ 1.7kg/l;
Step 7, the mortar that step 6 is obtained inject heat exchange system by hose pump;
Step 8, the mortar input horizontal spiral discharge sedimentation centrifuge that meets processing requirement temperature that step 7 is obtained, separate and obtain solid phase part and liquid phase part;
Step 9, the solid phase part obtaining by step 8 is delivered to transferring cylinder by surge pump;
Step 10, the unified input of the liquid phase part liquid storage transferring cylinder that step 5 and step 8 are obtained;
Step 11, the liquid in liquid storage transferring cylinder is added to a kind of major ingredient is the efficient press filtration auxiliary agent of silicon-dioxide, and this auxiliary agent has special hole and contour structures, thereby has very high filter effect; Interpolation usage quantity is 1 ~ 10kg/m
3, stir;
Step 12, the liquid phase part stirring in step 11 is delivered into Filter Press by impeller pump;
Step 13, the clarified liq that process Filter Press is obtained are delivered to clear liquor storage tank;
Step 14, the clear liquor in clear liquor storage tank is injected to smart filtrate tanks by impeller pump, obtain smart filtrate;
Step 15, by smart filtrate in adding deionized water and stirring between processing requirement ratio 1:1 to 1:1.1;
Step 16, in the filtrate that adds deionized water, add gac to decolour;
Step 17, the filtrate of decolouring is carried out to press filtration obtain clarifying water white transparency filtrate;
Step 18, the colourless transparent liquid that press filtration is obtained are processed by ion exchanger;
Step 19, the purification liquid that process ion exchange treatment is obtained carry out distillation dehydration processing;
Step 20, will obtain smart filtrate by secondary filter filtration treatment through the liquid of distillation dehydration processing;
Step 21, the smart filtrate in step 20 is allocated by the transferring cylinder in volume pump implantation step 10, in this process, between 1.630 ~ 1.660kg/l, (set exact value according to cutting technique) by the on-line monitoring control specific gravity range of proportion under meter and obtain online recycling mortar;
Step 22, online recycling mortar is delivered to regeneration mortar Mixer pot by pneumatic diaphragm pump;
Step 23, preprepared sand and liquid are pressed to slice process proportion set configuration, stir and obtain new mortar after 6 hours, by volume pump, new mortar is delivered to the regeneration mortar Mixer pot in step 22 in technique initialization ratio, through fully stirring the regeneration mortar that obtains meeting the requirements of the customers;
Step 24, the satisfactory regeneration mortar obtaining are quantitatively transferred to slicing machine circulation cutting by customer by the mode of Weighing and utilize.
Claims (3)
1. a mortar online recycling technique for solar silicon wafers cutting, is characterized in that: described technique includes following steps:
Step 1, magma filling and stirring: the waste mortar after silicon chip cutter is used is that magma is extracted unified collection surely out, and the magma of having collected is quantitatively transferred in magma a mixing bowl and is stirred, simultaneously in smart filtrate tanks by magma once quantitatively 0.5 ~ 1 times of operational throughput input cutting stoste use smart filtrate as starting, in the process of stirring, utilize the smart filtrate in smart filtrate tanks that magma proportion is allocated to 1.5 ~ 1.7kg/l;
Step 2, allotment: in the magma that is 1.5 ~ 1.7kg/l through the proportion stirring by volume pump by 1 ‰ ~ 5 ‰ proportion charging sepa-ration aid;
Step 3, stirring: the magma that adds high efficiency separation auxiliary agent is fully stirred, and churning time was guaranteed more than 1 hour;
Step 4, the allotment magma that step 3 is obtained are injected heat exchange system by hose pump;
Step 5, the magma input horizontal spiral discharge sedimentation centrifuge that meets processing requirement temperature that step 4 is obtained, separate and obtain solid phase part and liquid phase part;
Step 6, the solid phase part obtaining by step 5 is allocated with the smart filtrate in smart filtrate tanks again, proportion target value is 1.5 ~ 1.7kg/l;
Step 7, the mortar that step 6 is obtained inject heat exchange system by hose pump;
Step 8, the mortar input horizontal spiral discharge sedimentation centrifuge that meets processing requirement temperature that step 7 is obtained, separate and obtain solid phase part and liquid phase part;
Step 9, the solid phase part obtaining by step 8 is delivered to transferring cylinder by surge pump;
Step 10, the unified input of the liquid phase part liquid storage transferring cylinder that step 5 and step 8 are obtained;
Step 11, the liquid in liquid storage transferring cylinder is added to press filtration auxiliary agent;
Step 12, the liquid phase part stirring in step 11 is delivered into Filter Press by impeller pump;
Step 13, the clarified liq that process Filter Press is obtained are delivered to clear liquor storage tank;
Step 14, the clear liquor in clear liquor storage tank is injected to smart filtrate tanks by impeller pump, obtain smart filtrate;
Step 15, by smart filtrate in adding deionized water and stirring between processing requirement ratio 1:1 to 1:1.1;
Step 16, in the filtrate that adds deionized water, add gac to decolour;
Step 17, the filtrate of decolouring is carried out to press filtration obtain clarifying water white transparency filtrate;
Step 18, the colourless transparent liquid that press filtration is obtained are processed by ion exchanger;
Step 19, the purification liquid that process ion exchange treatment is obtained carry out distillation dehydration processing;
Step 20, will obtain smart filtrate by secondary filter filtration treatment through the liquid of distillation dehydration processing;
Step 21, the smart filtrate in step 20 is allocated by the transferring cylinder in volume pump implantation step 10, the on-line monitoring control specific gravity range by proportion under meter in this process obtains online recycling mortar between 1.630 ~ 1.660kg/l;
Step 22, online recycling mortar is delivered to regeneration mortar Mixer pot by pneumatic diaphragm pump;
Step 23, the new mortar that is prepared in advance is delivered to the regeneration mortar Mixer pot in step 22 by volume pump, through fully stirring the regeneration mortar that obtains meeting the requirements of the customers;
Step 24, the satisfactory regeneration mortar obtaining are quantitatively transferred to slicing machine circulation cutting by customer by the mode of Weighing and utilize.
2. a kind of solar silicon wafers cuts by mortar online recycling technique as claimed in claim 1, it is characterized in that: described sepa-ration aid is made up of high molecular polymer, tensio-active agent and dispersion agent.
3. a kind of solar silicon wafers cuts by mortar online recycling technique as claimed in claim 1, it is characterized in that: the composition of the press filtration auxiliary agent adding in described step 11 includes silicon-dioxide, and interpolation usage quantity is 1 ~ 10kg/m
3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410253489.3A CN104046504B (en) | 2014-06-10 | 2014-06-10 | Solar silicon wafers cutting mortar online recycling technique |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410253489.3A CN104046504B (en) | 2014-06-10 | 2014-06-10 | Solar silicon wafers cutting mortar online recycling technique |
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| CN104046504A true CN104046504A (en) | 2014-09-17 |
| CN104046504B CN104046504B (en) | 2016-03-09 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106010764A (en) * | 2016-05-19 | 2016-10-12 | 苏州晶樱光电科技有限公司 | Method for recovering mortar during silicon wafer cutting |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102352281A (en) * | 2011-09-02 | 2012-02-15 | 江苏灵宏机电工程有限公司 | Method of recycling polyethylene glycol and silicon carbide granules from silicon chip cutting waste mortar |
| CN102925276A (en) * | 2012-11-15 | 2013-02-13 | 晶科能源有限公司 | Recovery method of slurry |
| KR101333966B1 (en) * | 2011-11-30 | 2013-11-27 | 오씨아이 주식회사 | High efficiency recycling method and system for sawing liquid in waste sludge formed by semiconductor and solar cell wafer using membrane process |
-
2014
- 2014-06-10 CN CN201410253489.3A patent/CN104046504B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102352281A (en) * | 2011-09-02 | 2012-02-15 | 江苏灵宏机电工程有限公司 | Method of recycling polyethylene glycol and silicon carbide granules from silicon chip cutting waste mortar |
| KR101333966B1 (en) * | 2011-11-30 | 2013-11-27 | 오씨아이 주식회사 | High efficiency recycling method and system for sawing liquid in waste sludge formed by semiconductor and solar cell wafer using membrane process |
| CN102925276A (en) * | 2012-11-15 | 2013-02-13 | 晶科能源有限公司 | Recovery method of slurry |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106010764A (en) * | 2016-05-19 | 2016-10-12 | 苏州晶樱光电科技有限公司 | Method for recovering mortar during silicon wafer cutting |
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Granted publication date: 20160309 Termination date: 20200610 |