CN201998337U - System for recovering cutting fluid and silicon carbide in waste mortar of siliconchip cutting - Google Patents
System for recovering cutting fluid and silicon carbide in waste mortar of siliconchip cutting Download PDFInfo
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- CN201998337U CN201998337U CN2010205775526U CN201020577552U CN201998337U CN 201998337 U CN201998337 U CN 201998337U CN 2010205775526 U CN2010205775526 U CN 2010205775526U CN 201020577552 U CN201020577552 U CN 201020577552U CN 201998337 U CN201998337 U CN 201998337U
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Abstract
The utility model is applicable to the technical field of siliconchip cutting and provides a system for recovering cutting fluid and silicon carbide in waste mortar of siliconchip cutting. The system comprises a first solid-liquid separator, a second solid-liquid separator, an acid cleaning device, an alkali cleaning device, a drying device and a gas grading device. In the system provided by the utility model, the secondary filtration is adopted, the filter screen hole diameter of the second solid-liquid separator is smaller than that of the first solid-liquid separator, so that solid and liquid in the waste mortar of the siliconchip cutting can be effectively separated from each other. In addition, by adopting the system to recover the cutting fluid and the silicon carbide in the waste mortar, the efficiency is high, and the environmental pollution and the resource wasting can be effectively prevented.
Description
Technical field
The utility model belongs to silicon chip cutting technique field, relates in particular to cutting liquid and carborundum recovery system in a kind of silicon chip dicing waste mortar.
Background technology
The photovoltaic industry is a rising industry.At present, making the employed solar battery chip of photovoltaic module mainly is raw material with the crystalline silicon, silicon single crystal rod and polycrystal silicon ingot will use great amount of cost higher solar energy cutting mortar in cutting process, and cutting liquid uses the silicon chip quality of cutting after a period of time obviously to reduce, the cutting mortar that need more renew, so not only increase the manufacturing cost of solar battery chip, and as can not effectively handle these waste mortars and also can cause environmental pollution.
The utility model content
In view of this, the utility model provides cutting liquid and carborundum recovery system in a kind of silicon chip dicing waste mortar, solves the environmental pollution, the wasting of resources problem that cause in the existing silicon chip cutting technique.
The utility model is achieved in that
Cutting liquid and carborundum recovery system in a kind of silicon chip cutting fluid waste mortar, described recovery system comprises:
First equipment for separating liquid from solid, this first equipment for separating liquid from solid comprise first filtrate receiver and the first solid groove;
Be connected and filter second equipment for separating liquid from solid of filtrate in first filtrate receiver with this first filtrate receiver, this second equipment for separating liquid from solid comprises the second solid groove and is used to collect second filtrate receiver that filtrate obtaining cut liquid;
Be connected with this first solid groove and the second solid groove and be used to receive the acid dip pickle that the filter residue of this first solid groove and the second solid groove carries out pickling;
Be connected with this acid dip pickle and be used to receive the alkaline cleaner that solid carries out alkali cleaning after the pickling;
Be connected with this alkaline cleaner and be used to receive alkali cleaning after solid carry out dry drying device;
Be connected with this drying device and be used to receive dry back solid and remove the gas classification device that differential obtains carborundum.
Further, the utility model recovery system first equipment for separating liquid from solid and second equipment for separating liquid from solid are filter-press.
Further, the utility model recovery system first equipment for separating liquid from solid and second equipment for separating liquid from solid include filter screen, and this second equipment for separating liquid from solid filter screen aperture is less than first equipment for separating liquid from solid.
Cutting liquid and carborundum recovery system in the utility model silicon chip dicing waste mortar, pass through secondary filter, and the second equipment for separating liquid from solid filter screen aperture is less than the first equipment for separating liquid from solid filter screen aperture, effectively with Separation of Solid and Liquid in the silicon chip dicing waste mortar, make to separate to filtrate in solid content low, resulting filtrate can be used as cutting liquid and reuses; To the processing of filter residue, effectively remove the impurity in the solid through acid dip pickle, alkaline cleaner and gas classification device, obtain the high carborundum powder of purity.Utilize the utility model recovery system to reclaim cutting liquid and carborundum in the silicon chip dicing waste mortar, the efficient height has prevented the environmental pollution and the wasting of resources effectively.
Description of drawings
The recovery system structural representation that Fig. 1 the utility model embodiment provides.
The specific embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer,, the utility model is further elaborated below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
Fig. 1 shows cutting liquid and carborundum recovery system in a kind of silicon chip cutting fluid waste mortar that the utility model embodiment provides, and described recovery system comprises:
First equipment for separating liquid from solid 1, described first equipment for separating liquid from solid 1 comprises first filtrate receiver 12 and the first solid groove 11;
Be connected and filter second equipment for separating liquid from solid 2 of filtrate in first filtrate receiver with described first filtrate receiver 1, described second equipment for separating liquid from solid 2 comprises the second solid groove 21 and is used to collect second filtrate receiver 22 that filtrate obtaining cut liquid;
Be connected with the described first solid groove 11 and the second solid groove 21 and be used to receive the acid dip pickle 3 that its solid carries out pickling;
Be connected with described acid dip pickle 3 and be used to receive the alkaline cleaner 4 that pickling reaction back solid carries out alkali cleaning;
Be connected with described alkaline cleaner 4 and be used to receive alkali cleaning after solid carry out dry drying device 5;
Be connected with described drying device 5 and be used to receive dry back solid remove differential obtain carborundum gas classification device 6.
Among the utility model embodiment, the composition of silicon chip dicing waste mortar comprises that mainly (active ingredient of cutting liquid is polyethylene glycol to cutting liquid, with suspending agent and binding agent is auxiliary element), carborundum, silicon and iron filings, in the filter residue that obtains through first equipment for separating liquid from solid, also contain suspending agent and binding agent, belong to impurity.Wherein, cutting liquid and carborundum are active ingredient, and iron filings and silicon belong to impurity component, need dispose (perhaps separating).
The recovery system of the utility model embodiment by silicon chip dicing waste mortar is carried out collecting filtrate after the double filtration, is carried out pickling, alkali cleaning, dry reaching except that the differential processing with filter residue.Collected filtrate is cutting liquid, can utilize once more, and filter residue obtains highly purified carborundum through after the above-mentioned processing.
Particularly, 1 pair of silicon chip dicing waste mortar of described first equipment for separating liquid from solid carries out the Separation of Solid and Liquid first time, and silicon chip dicing waste mortar obtains filtrate and filter residue through filtration treatment, main component then contains carborundum, silicon, suspending agent, binding agent and iron filings for cutting liquid in the described filtrate in the filter residue.Described first equipment for separating liquid from solid 1 can be preferably filter-press for various separators.By the working pressure filter, it is low to guarantee to filter in the rear filtrate solid content, and resulting cutting liquid meets more and utilizes condition once more.
2 pairs of silicon chip dicing waste mortars of described second equipment for separating liquid from solid carry out the Separation of Solid and Liquid second time, specifically are that resulting filtrate in first equipment for separating liquid from solid 1 is carried out filtration treatment once more.Therefore, described second equipment for separating liquid from solid 2 and first filtrate receiver 12 are connected, and the filtrate in first filtrate receiver 12 is carried out filtration treatment.Described second equipment for separating liquid from solid 2 can be various devices, is preferably the air pressure filtration machine.By selecting filter-press for use, it is low to guarantee to filter in the rear filtrate solid content, makes filtrate directly to reuse.Therefore, behind second equipment for separating liquid from solid 2, collect filtrate and promptly obtain the cutting liquid that can directly reuse.
Described first equipment for separating liquid from solid 1 is compared with second equipment for separating liquid from solid 2, first equipment for separating liquid from solid 1 and second equipment for separating liquid from solid 2 include filter screen, the difference of the two is, the filter screen aperture of second equipment for separating liquid from solid 2 is littler than the filter screen aperture of first equipment for separating liquid from solid 1, so also make and reduce greatly through solid content in the resulting filtrate of second equipment for separating liquid from solid, 2 filtrations, improved filter efficiency, guaranteeing can be consistent with fresh cutting liquid through filtering the filtrate that obtains for the second time.
The described acid dip pickle 3 and the first solid groove 11 and the second solid groove 21 are connected, and collect the filter residue in the first solid groove 11 and the second solid groove 21, and carry out pickling.Described acid dip pickle 3 requires the acidproof and anti-60-130 ℃ of temperature of energy, can be reaction bulb, reactor etc.Described pickling processes is carried out under stirring condition, and employed acid is the mixed acid of citric acid and other weak acid, and other weak acid are selected from carbonic acid, oxalic acid and acetic acid etc.In the pickling processes, after the iron filings in acid and the filter residue and suspending agent, binding agent fully react, leave standstill a period of time, remove supernatant, add pure water again and clean repeatedly, promptly obtain the solid after the pickling after the filtration.Through overpickling, the iron filings on the one hand can the place to go filter residue can also be removed suspending agent and binding agent in the filter residue on the other hand effectively.
Described alkaline cleaner 4 and described acid dip pickle 3 are connected, and receive the solid after overpickling that obtains in the acid dip pickle 3, and described solid is carried out alkali cleaning.Described alkaline cleaner 4 requires the alkaline-resisting and anti-60-130 ℃ of temperature of energy, can be reaction bulb or reactor etc.During described alkali cleaning was handled, employed alkali was strong base solution, for example NaOH, potassium hydroxide etc., by reacting between highly basic and the silicon, remove sila matter, the use amount of strong base solution is determined according to the amount of silicon in the waste mortar and is excessive, guarantees that all silicon all reacts.During alkali cleaning is handled, after question response is complete, adds pure water and clean repeatedly, promptly obtaining through solid after the alkali cleaning is carborundum.
Described drying device 5 and alkaline cleaner 4 are connected, solid and drying after the alkali cleaning that obtains in the reception alkaline cleaner 4.Described drying device 5 is not specifically limited, and can be drying box, baking oven etc.In dry the processing, earlier solid after the alkali cleaning is shakeout, dry under 80-120 ℃ of condition then.
Described gas classification device 6 and drying device 5 are connected, and receive the solid after the drying that obtains in the drying device 5 is handled, and by air-flow the super fine in the solid are removed, and promptly obtain the green silicon carbide powder.This ultra-fine differential is that particle diameter is less than 1200 purpose carborundum powders.
The above only is preferred embodiment of the present utility model; not in order to restriction the utility model; all any modifications of within spirit of the present utility model and principle, being done, be equal to and replace and improvement etc., all should be included within the protection domain of the present utility model.
Claims (3)
1. cut liquid and carborundum recovery system in a silicon chip dicing waste mortar, described recovery system comprises:
First equipment for separating liquid from solid, described first equipment for separating liquid from solid comprise first filtrate receiver and the first solid groove;
Be connected and filter second equipment for separating liquid from solid of filtrate in first filtrate receiver with described first filtrate receiver, described second equipment for separating liquid from solid comprises the second solid groove and is used to collect second filtrate receiver that filtrate obtaining cut liquid;
Be connected with the described first solid groove and the second solid groove and be used to receive the acid dip pickle that the filter residue of the described first solid groove and the second solid groove carries out pickling;
Be connected with described acid dip pickle and be used to receive the alkaline cleaner that solid carries out alkali cleaning after the pickling;
Be connected with described alkaline cleaner and be used to receive alkali cleaning after solid carry out dry drying device;
Be connected with described drying device and be used to receive dry back solid and remove the gas classification device that differential obtains carborundum.
2. cutting liquid and carborundum recovery system in the silicon chip dicing waste mortar as claimed in claim 1, it is characterized in that: described first equipment for separating liquid from solid and described second equipment for separating liquid from solid are filter-press.
3. cutting liquid and carborundum recovery system in the silicon chip dicing waste mortar as claimed in claim 1, it is characterized in that: described first equipment for separating liquid from solid and second equipment for separating liquid from solid include filter screen, and the filter screen aperture of described second equipment for separating liquid from solid is less than the described first equipment for separating liquid from solid filter screen aperture.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205775526U CN201998337U (en) | 2010-10-26 | 2010-10-26 | System for recovering cutting fluid and silicon carbide in waste mortar of siliconchip cutting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205775526U CN201998337U (en) | 2010-10-26 | 2010-10-26 | System for recovering cutting fluid and silicon carbide in waste mortar of siliconchip cutting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201998337U true CN201998337U (en) | 2011-10-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205775526U Expired - Lifetime CN201998337U (en) | 2010-10-26 | 2010-10-26 | System for recovering cutting fluid and silicon carbide in waste mortar of siliconchip cutting |
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| CN (1) | CN201998337U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103921363A (en) * | 2014-04-29 | 2014-07-16 | 南通综艺新材料有限公司 | Method for recycling wafer cutting waste mortar |
| CN105235084A (en) * | 2015-09-30 | 2016-01-13 | 浙江辉弘光电能源有限公司 | Cutting fluid dewatering device for silicon slice cutting machine |
| CN103921363B (en) * | 2014-04-29 | 2016-11-30 | 南通综艺新材料有限公司 | A kind of waste and old mortar secondary cycle Application way of cutting into slices |
| CN106365167A (en) * | 2016-08-31 | 2017-02-01 | 福建省建瓯市富晶宝微粒有限公司 | Silicon carbide micropowder impurity clearing and removing technology and production equipment |
| CN106395827A (en) * | 2016-08-31 | 2017-02-15 | 福建省建瓯市富晶宝微粒有限公司 | Silicon carbide micro-powder purification grading production technology and production equipment thereof |
-
2010
- 2010-10-26 CN CN2010205775526U patent/CN201998337U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103921363A (en) * | 2014-04-29 | 2014-07-16 | 南通综艺新材料有限公司 | Method for recycling wafer cutting waste mortar |
| CN103921363B (en) * | 2014-04-29 | 2016-11-30 | 南通综艺新材料有限公司 | A kind of waste and old mortar secondary cycle Application way of cutting into slices |
| CN105235084A (en) * | 2015-09-30 | 2016-01-13 | 浙江辉弘光电能源有限公司 | Cutting fluid dewatering device for silicon slice cutting machine |
| CN106365167A (en) * | 2016-08-31 | 2017-02-01 | 福建省建瓯市富晶宝微粒有限公司 | Silicon carbide micropowder impurity clearing and removing technology and production equipment |
| CN106395827A (en) * | 2016-08-31 | 2017-02-15 | 福建省建瓯市富晶宝微粒有限公司 | Silicon carbide micro-powder purification grading production technology and production equipment thereof |
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| C14 | Grant of patent or utility model | ||
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Granted publication date: 20111005 |
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| CX01 | Expiry of patent term |