CN204454606U - Silicon carbide and silica flour slurry eddy flow washing system in a kind of crystal silicon waste mortar for wire cutting - Google Patents
Silicon carbide and silica flour slurry eddy flow washing system in a kind of crystal silicon waste mortar for wire cutting Download PDFInfo
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- CN204454606U CN204454606U CN201520105749.2U CN201520105749U CN204454606U CN 204454606 U CN204454606 U CN 204454606U CN 201520105749 U CN201520105749 U CN 201520105749U CN 204454606 U CN204454606 U CN 204454606U
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Abstract
Silicon carbide and silica flour slurry eddy flow washing system in a kind of crystal silicon waste mortar for wire cutting, comprise: eddy flow mortar preparing tank, removal of impurities charging stock tank, eddy flow charging stock tank, one ~ Pyatyi underflow tank, the first ~ six swirler, a pure water box, the first ~ six swirler is arranged at above described eddy flow charging stock tank and one ~ Pyatyi underflow tank respectively; Pure water box is connected with eddy flow mortar preparing tank, removal of impurities charging stock tank, eddy flow charging stock tank, one ~ Pyatyi underflow tank respectively by pipeline; Described removal of impurities charging stock tank discharge port is connected with the first swirler opening for feed by a mortar pump; First swirler bottom discharge mouth is connected with eddy flow charging stock tank opening for feed; Second swirler bottom discharge mouth is connected with one-level underflow tank opening for feed; One-level underflow tank discharge port is connected with three cuff technique opening for feed.Described system carries out six stage countercurrent washings to the slurry containing silicon carbide and silica flour, and after washing, in the slurry obtained, carborundum content is more than 96%, and the product of elemental silicon content≤1%, obviously promotes regeneration efficiency, reduces production cost.
Description
Technical field
The utility model relates to silicon carbide and silica flour slurry eddy flow washing system in a kind of crystal silicon waste mortar for wire cutting.
Background technology
Silicon chip cutting is the upstream gordian technique that electronic industry main raw material(s) one silicon chip (wafer) is produced, and the quality of cutting and scale directly have influence on the subsequent production of whole industrial chain.In the electronics industry, the demand of silicon chip is mainly manifested in the semiconductor industry such as solar energy power generating and unicircuit.Crystal silicon chip is the main raw making photovoltaic solar cell, and the solar module often producing 1MW needs the raw material of about 17 tons.Clean Edge estimates, the scale of global solar GENERATION MARKET by from 11,000,000,000 dollars of 51,000,000,000 dollars of pushing ahead vigorously to increase by 2015 of 2005, with famous " Silicon Valley " of chip will by " sun paddy " replace.The fast development of obvious solar energy industry needs more silicon raw material and cutting facility to support.
Technique for processing silicon chip flow process is generally through stages such as crystal growth, cut-out, external diameter barreling, flat limit, section, chamfering, grinding, burn into polishing, cleaning, packagings.In whole cutting process, cutting liquid (PEG) has vital role, but, along with people are to the attention of environment protection, how to process the waste mortar that cutting liquid produces after cutting, day by day become the emphasis of people's research.
Crystal silicon waste mortar for wire cutting is a kind of grey black thickness solid-liquid mixture, containing silicon carbide, and silica flour, iron, polyoxyethylene glycol, water impurity etc.Slightly water absorbability, not volatile, stable chemical nature, can be water-soluble, difficult combustion, by Treatment of Dangerous Chemical Wastes transport, sealed type storage.
How utilizing crystal silicon Linear cut waste slurry, regeneration cutting liquid (polyoxyethylene glycol), silicon carbide, ceramic fine materials, is urgent problem in recent years.
Utility model content
For solving above-mentioned Problems existing, the purpose of this utility model is to provide silicon carbide and silica flour slurry eddy flow washing system in a kind of crystal silicon waste mortar for wire cutting, for carrying out manipulation of regeneration to the silicon carbide in waste mortar and silica flour, improves regeneration efficiency.
For achieving the above object, the technical solution of the utility model is:
Silicon carbide and silica flour slurry eddy flow washing system in a kind of crystal silicon waste mortar for wire cutting, comprising: eddy flow mortar preparing tank, inside establish stirrer, its opening for feed connects silicon carbide and silica flour slurry; Removal of impurities charging stock tank, inside establishes stirrer; Eddy flow charging stock tank, inside establishes stirrer; One ~ Pyatyi underflow tank, be intervally arranged, inside is respectively equipped with stirrer; First ~ six swirler, is arranged at above described eddy flow charging stock tank and one ~ Pyatyi underflow tank respectively; One pure water box, is connected respectively by pipeline with eddy flow mortar preparing tank, removal of impurities charging stock tank, eddy flow charging stock tank, one ~ Pyatyi underflow tank, and described pipeline is provided with control valve; Described removal of impurities charging stock tank discharge port is connected with the first swirler opening for feed by a mortar pump; First swirler bottom discharge mouth is connected with eddy flow charging stock tank opening for feed, and eddy flow charging stock tank discharge port is connected with the second swirler opening for feed by a mortar pump; Second swirler bottom discharge mouth is connected with one-level underflow tank opening for feed, and top overflow port is connected with removal of impurities charging stock tank opening for feed; One-level underflow tank discharge port is connected with three cuff technique opening for feed by a mortar pump, and three cuff technique top overflow port is connected with eddy flow charging stock tank opening for feed, and bottom discharge mouth is connected with three grades of underflow tank opening for feeds; Described eddy flow mortar preparing tank discharge port is connected with secondary underflow tank opening for feed by an eddy flow mortar transferpump, secondary underflow tank discharge port is connected with the 4th swirler opening for feed by a mortar pump, 4th swirler bottom discharge mouth is connected with described three grades of underflow tank opening for feeds, and top overflow port is connected with described one-level underflow tank opening for feed; Three grades of underflow tank discharge ports are connected with the 5th swirler opening for feed by a mortar pump, and the 5th swirler bottom discharge mouth is connected with described level Four underflow tank opening for feed, and top overflow port is connected with described secondary underflow tank opening for feed; Level Four underflow tank discharge port is connected with the 6th swirler opening for feed by a mortar pump, and the 6th swirler bottom discharge mouth is connected with described Pyatyi underflow tank opening for feed, and top overflow port is connected with described three grades of underflow tank opening for feeds.
Further, described eddy flow mortar preparing tank discharge port is formed to circulate with its opening for feed by described eddy flow mortar transferpump and is connected.
Separately, described control valve is ball valve.
The utility model beneficial effect is:
Carry out six stage countercurrent washings to the slurry containing silicon carbide and silica flour, after washing, in the slurry obtained, carborundum content is more than 96%, and the product of elemental silicon content≤1%, obviously promotes regeneration efficiency, reduces production cost.
Accompanying drawing explanation
Fig. 1 is silicon carbide in the crystal silicon waste mortar for wire cutting described in the utility model embodiment and silica flour slurry eddy flow washing system structural representation.
Embodiment
See Fig. 1, silicon carbide and silica flour slurry eddy flow washing system in crystal silicon waste mortar for wire cutting described in the utility model, comprising: eddy flow mortar preparing tank 1, inside establish stirrer 2, its opening for feed connects silicon carbide and silica flour slurry; Removal of impurities charging stock tank 3, inside establishes stirrer 2; Eddy flow charging stock tank 4, inside establishes stirrer 2; One ~ Pyatyi underflow tank 51 ~ 55, is intervally arranged, and inside is respectively equipped with stirrer 2; First ~ six swirler 61 ~ 66, is arranged at above described eddy flow charging stock tank 4 and one ~ Pyatyi underflow tank 51 ~ 55 respectively; One pure water box 7, is connected respectively by pipeline with eddy flow mortar preparing tank 1, removal of impurities charging stock tank 3, eddy flow charging stock tank 4, one ~ Pyatyi underflow tank 51 ~ 55, and described pipeline is provided with control valve 71; Described removal of impurities charging stock tank 3 discharge port is connected with the first swirler 61 opening for feed by a mortar pump 8; First swirler 61 bottom discharge mouth is connected with eddy flow charging stock tank 4 opening for feed, and eddy flow charging stock tank 4 discharge port is connected with the second swirler 62 opening for feed by a mortar pump 8; Second swirler 62 bottom discharge mouth is connected with one-level underflow tank 51 opening for feed, and top overflow port is connected with removal of impurities charging stock tank 3 opening for feed; One-level underflow tank 51 discharge port is connected with three cuff technique 63 opening for feed by a mortar pump 8, and three cuff technique 63 top overflow port is connected with eddy flow charging stock tank 4 opening for feed, and bottom discharge mouth is connected with three grades of underflow tank 53 opening for feeds; Described eddy flow mortar preparing tank 1 discharge port is connected with secondary underflow tank 52 opening for feed by an eddy flow mortar transferpump 9, secondary underflow tank 52 discharge port is connected with the 4th swirler 64 opening for feed by a mortar pump 8,4th swirler 63 bottom discharge mouth is connected with described three grades of underflow tank 53 opening for feeds, and top overflow port is connected with described one-level underflow tank 51 opening for feed; Three grades of underflow tank 53 discharge ports are connected with the 5th swirler 65 opening for feed by a mortar pump 8, and the 5th swirler 65 bottom discharge mouth is connected with described level Four underflow tank 54 opening for feed, and top overflow port is connected with described secondary underflow tank 52 opening for feed; Level Four underflow tank 54 discharge port is connected with the 6th swirler 66 opening for feed by a mortar pump 8, and the 6th swirler 66 bottom discharge mouth is connected with described Pyatyi underflow tank 55 opening for feed, and top overflow port is connected with described three grades of underflow tank 53 opening for feeds.
Further, described eddy flow mortar preparing tank 1 discharge port is formed to circulate with its opening for feed by described eddy flow mortar transferpump 9 and is connected.
Separately, described control valve 71 is ball valve.
In crystal silicon waste mortar for wire cutting described in the utility model silicon carbide and silica flour slurry eddy flow washing system workflow as follows:
Mortar is prepared:
In eddy flow mortar preparing tank 1, carry out the preparation of eddy flow mortar.First in tank, 12M is injected
3cyclone water.Start stirrer 2, by the suspension containing silicon carbide and silica flour of the filter cake preparation after 5 press filtrations, by pump delivery in eddy flow mortar preparing tank 1, detect mortar suspension solid content between 15% ~ 25%.
Eddy flow operates:
According to the principle of countercurrent washing, adopt the first ~ six swirler 61 ~ 66, six stage countercurrent washings are carried out to the mixture paste of silicon carbide and silica flour.After washing, in available slurry, carborundum content is more than 96%, the product of elemental silicon content≤1%.
It should be noted that, above embodiment is only in order to illustrate the technical solution of the utility model and unrestricted.Although be described in detail the utility model with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can modify to the technical scheme of utility model or equivalent replacement, and not departing from the scope of technical solutions of the utility model, it all should be encompassed in right of the present utility model.
Claims (3)
1. silicon carbide and a silica flour slurry eddy flow washing system in crystal silicon waste mortar for wire cutting, is characterized in that, comprising:
Eddy flow mortar preparing tank, inside establishes stirrer, and its opening for feed connects silicon carbide and silica flour slurry;
Removal of impurities charging stock tank, inside establishes stirrer;
Eddy flow charging stock tank, inside establishes stirrer;
One ~ Pyatyi underflow tank, be intervally arranged, inside is respectively equipped with stirrer;
First ~ six swirler, is arranged at above described eddy flow charging stock tank and one ~ Pyatyi underflow tank respectively;
One pure water box, is connected respectively by pipeline with eddy flow mortar preparing tank, removal of impurities charging stock tank, eddy flow charging stock tank, one ~ Pyatyi underflow tank, and described pipeline is provided with control valve;
Described removal of impurities charging stock tank discharge port is connected with the first swirler opening for feed by a mortar pump;
First swirler bottom discharge mouth is connected with eddy flow charging stock tank opening for feed, and eddy flow charging stock tank discharge port is connected with the second swirler opening for feed by a mortar pump;
Second swirler bottom discharge mouth is connected with one-level underflow tank opening for feed, and top overflow port is connected with removal of impurities charging stock tank opening for feed;
One-level underflow tank discharge port is connected with three cuff technique opening for feed by a mortar pump, and three cuff technique top overflow port is connected with eddy flow charging stock tank opening for feed, and bottom discharge mouth is connected with three grades of underflow tank opening for feeds;
Described eddy flow mortar preparing tank discharge port is connected with secondary underflow tank opening for feed by an eddy flow mortar transferpump, secondary underflow tank discharge port is connected with the 4th swirler opening for feed by a mortar pump, 4th swirler bottom discharge mouth is connected with described three grades of underflow tank opening for feeds, and top overflow port is connected with described one-level underflow tank opening for feed;
Three grades of underflow tank discharge ports are connected with the 5th swirler opening for feed by a mortar pump, and the 5th swirler bottom discharge mouth is connected with described level Four underflow tank opening for feed, and top overflow port is connected with described secondary underflow tank opening for feed;
Level Four underflow tank discharge port is connected with the 6th swirler opening for feed by a mortar pump, and the 6th swirler bottom discharge mouth is connected with described Pyatyi underflow tank opening for feed, and top overflow port is connected with described three grades of underflow tank opening for feeds.
2. silicon carbide and silica flour slurry eddy flow washing system in crystal silicon waste mortar for wire cutting according to claim 1, is characterized in that, described eddy flow mortar preparing tank discharge port is formed to circulate with its opening for feed by described eddy flow mortar transferpump and is connected.
3. silicon carbide and silica flour slurry eddy flow washing system in crystal silicon waste mortar for wire cutting according to claim 1, it is characterized in that, described control valve is ball valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520105749.2U CN204454606U (en) | 2015-02-13 | 2015-02-13 | Silicon carbide and silica flour slurry eddy flow washing system in a kind of crystal silicon waste mortar for wire cutting |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520105749.2U CN204454606U (en) | 2015-02-13 | 2015-02-13 | Silicon carbide and silica flour slurry eddy flow washing system in a kind of crystal silicon waste mortar for wire cutting |
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| CN204454606U true CN204454606U (en) | 2015-07-08 |
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| CN201520105749.2U Expired - Fee Related CN204454606U (en) | 2015-02-13 | 2015-02-13 | Silicon carbide and silica flour slurry eddy flow washing system in a kind of crystal silicon waste mortar for wire cutting |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108046269A (en) * | 2018-01-16 | 2018-05-18 | 常州大学 | A kind of technique of the useless powder separation and recovery of solar silicon wafers cutting |
-
2015
- 2015-02-13 CN CN201520105749.2U patent/CN204454606U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108046269A (en) * | 2018-01-16 | 2018-05-18 | 常州大学 | A kind of technique of the useless powder separation and recovery of solar silicon wafers cutting |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150708 Termination date: 20170213 |