CN109704342B - Silica flour waste liquid recovery plant - Google Patents
Silica flour waste liquid recovery plant Download PDFInfo
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- CN109704342B CN109704342B CN201811601171.4A CN201811601171A CN109704342B CN 109704342 B CN109704342 B CN 109704342B CN 201811601171 A CN201811601171 A CN 201811601171A CN 109704342 B CN109704342 B CN 109704342B
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- silicon powder
- liquid storage
- waste liquid
- shaft
- liquid
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- 239000007788 liquid Substances 0.000 title claims abstract description 70
- 239000002699 waste material Substances 0.000 title claims abstract description 42
- 238000011084 recovery Methods 0.000 title abstract description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 title description 24
- 235000013312 flour Nutrition 0.000 title description 12
- 239000000377 silicon dioxide Substances 0.000 title description 12
- 230000007246 mechanism Effects 0.000 claims abstract description 106
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 82
- 239000011863 silicon-based powder Substances 0.000 claims abstract description 82
- 238000003860 storage Methods 0.000 claims abstract description 22
- 238000001914 filtration Methods 0.000 claims abstract description 18
- 230000005587 bubbling Effects 0.000 claims abstract description 17
- 238000009461 vacuum packaging Methods 0.000 claims abstract description 12
- 238000004140 cleaning Methods 0.000 claims abstract description 8
- 238000005086 pumping Methods 0.000 claims abstract description 7
- 238000007790 scraping Methods 0.000 claims description 22
- 238000001035 drying Methods 0.000 claims description 17
- 238000004064 recycling Methods 0.000 claims description 10
- 239000002210 silicon-based material Substances 0.000 claims description 8
- 238000009826 distribution Methods 0.000 claims description 6
- 238000004806 packaging method and process Methods 0.000 claims description 6
- 238000012216 screening Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 16
- 230000008569 process Effects 0.000 abstract description 8
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 239000000463 material Substances 0.000 abstract description 5
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 229910052739 hydrogen Inorganic materials 0.000 abstract description 2
- 239000001257 hydrogen Substances 0.000 abstract description 2
- 238000012545 processing Methods 0.000 abstract description 2
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 abstract description 2
- 235000012239 silicon dioxide Nutrition 0.000 abstract description 2
- 125000004435 hydrogen atom Chemical class [H]* 0.000 abstract 1
- 239000000919 ceramic Substances 0.000 description 8
- 239000012528 membrane Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 4
- 238000004062 sedimentation Methods 0.000 description 4
- 239000011550 stock solution Substances 0.000 description 4
- 230000010405 clearance mechanism Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000000178 monomer Substances 0.000 description 3
- 230000007723 transport mechanism Effects 0.000 description 3
- 238000001291 vacuum drying Methods 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000003153 chemical reaction reagent Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000008235 industrial water Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000002910 solid waste Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 230000002860 competitive effect Effects 0.000 description 1
- 239000002173 cutting fluid Substances 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000003670 easy-to-clean Effects 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 230000036632 reaction speed Effects 0.000 description 1
- 238000007873 sieving Methods 0.000 description 1
- ABTOQLMXBSRXSM-UHFFFAOYSA-N silicon tetrafluoride Chemical compound F[Si](F)(F)F ABTOQLMXBSRXSM-UHFFFAOYSA-N 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Abstract
The invention provides silicon powder waste liquid recovery equipment, which comprises a liquid storage mechanism, a filtering mechanism arranged on the liquid storage mechanism, a pumping mechanism connected with the filtering mechanism, a bubbling mechanism arranged in the liquid storage mechanism, a silicon powder cleaning mechanism matched with a disc of the filtering mechanism, a silicon powder conveying mechanism arranged at the lower end of the liquid storage mechanism, and a vacuum packaging mechanism connected with the silicon powder conveying mechanism; the device separates the silicon powder waste liquid into water and silicon powder, realizes waste utilization, changes waste into valuable, and is beneficial to environmental protection; the arrangement of the bubbling mechanism reduces the generation of silicic acid and the release of hydrogen, and improves the production safety; the device has low manufacturing cost and simple and practical structure, can be applied to the processing process of solar energy base materials and the production process of components, and can effectively solve the problem of waste liquid treatment which puzzles the industry for a long time.
Description
Technical Field
The invention relates to the technical field of waste material treatment in the photovoltaic industry, in particular to a silicon powder waste liquid recycling device which is used for recycling waste liquid containing silicon powder.
Background
The current photovoltaic market is huge, the demand of silicon materials is large, and the generated silicon material waste is large; however, no recycling equipment for silicon powder is available in the market, chemical methods are needed in most cases, the traditional solid waste is changed into dangerous waste, the traditional silicon powder waste is changed into silicon fluoride waste liquid, the treatment cost is greatly increased, and the method is unsafe and not environment-friendly.
The method has the advantages that the silicon material is cut to generate waste liquid with cutting fluid, the waste liquid can not reach the direct discharge standard, the traditional method is adopted for treatment at present, firstly, the method adopts a mode of adding chemical reagents to treat the silicon powder waste liquid, certain specific raw materials are added into the silicon powder waste liquid to enable the silicon powder waste liquid to generate chemical reaction and then precipitate, and the chemical reaction is generated by adding the chemical reagents, so that the original silicon powder solid waste is changed into dangerous waste, and the treatment cost is greatly increased. The second technology is that the sedimentation method is adopted, the silicon powder waste liquid is led into a sedimentation tank for long-term sedimentation and then is treated, the old set treatment period of the method is long, and as the silicon powder particles are mainly in a suspension state at about 0.5um, the site, time and cost of the sedimentation method are greatly increased, and in addition, the silicon powder is easy to react with water to generate hydrogen gas to generate explosion hazard, so that the filtration and recovery of the silicon powder are difficult. Based on the market conditions and demands, the applicant specially develops the equipment to solve the technical problems in the industry.
Disclosure of Invention
The invention aims to separate the silicon powder waste liquid and separate industrial water and solid silicon powder, wherein the industrial water can be recycled industrially, and the solid silicon powder can be used as industrial raw materials to realize changing waste into valuables.
The technical scheme of the invention is realized as follows: the utility model provides a silica flour waste liquid recovery plant, includes stock solution mechanism, establishes the filter equipment on stock solution mechanism, connects filter equipment's pumping mechanism, establishes the bubbling mechanism in stock solution mechanism, with filter equipment's disc complex silica flour clearance mechanism, establishes the silica flour transport mechanism in stock solution mechanism lower extreme, the vacuum packaging mechanism who is connected with silica flour transport mechanism.
Preferably, the liquid storage mechanism comprises a scooping body and a plurality of monomers communicated with the scooping body, the filtering mechanism comprises a shaft, a plurality of filter discs communicated with the shaft and a shaft motor for driving the shaft, the shaft is arranged above the scooping body through a shaft sleeve, and one part of the filter discs are arranged in the monomers, and one part of the filter discs are arranged in the scooping body.
Preferably, the silicon powder cleaning mechanism comprises a left scraping blade and a right scraping blade, and the left scraping blade and the right scraping blade are arranged on the single body and are in scraping contact with the filter disc.
Preferably, the bubbling mechanism comprises a bubbling barrel, a connecting pipe and a distribution pipe arranged in the scooping body, and a plurality of air outlet holes are formed in the distribution pipe.
Preferably, the scooping body is connected with the liquid inlet pipe through a liquid drawing pump.
Preferably, the shaft is connected to the drain pipe by a vacuum pump.
Preferably, the silicon powder conveying mechanism is a conveying mechanism and a drying device arranged at the lower end of the conveying mechanism, and the drying device is one of a plate type heat exchanger and a tubular heat exchanger.
Preferably, the vacuum packaging mechanism comprises a vibrating screen assembly, a vacuum assembly and a drying assembly, the silicon materials are screened in vacuum and drying atmosphere, and the silicon materials are pumped for packaging.
Preferably, the vacuum packaging mechanism is externally connected with the silicon powder conveying and warehousing mechanism, and a central control mechanism is arranged to control the whole equipment.
The use profile of each part, the filtering mechanism: the filter disc of the filter mechanism adopts a disc type ceramic filter membrane with the thickness of 0.1-0.5 um (the accuracy of the ceramic filter membrane is verified to be feasible by multiple experiments), and one fourth of the rotary working mode is placed in the waste liquid, and is additionally placed under exposure for separating water from silicon powder in the waste liquid, so that the silicon powder is attached to the surface of the ceramic membrane, the silicon powder is easy to clean by a silicon powder cleaning mechanism, and clean water entering the ceramic membrane can be directly discharged or recycled after reaching the surface level discharge standard.
And the pumping mechanism is as follows: negative pressure is pumped by water ring pump, and the function is as follows: the ceramic membrane is used for filling inhalable water molecules in the ceramic membrane under negative pressure to achieve a filtering effect, and negative pressure power is provided for a filtering mechanism; and continuously sucking and filtering the ceramic film which is exposed in the air and is attached with the silicon powder to achieve the drying effect
The liquid storage mechanism comprises: adopt the force pump to collect the waste liquid in the machine scoops up, divide into the left and right sides, the left side is scooping up the body, and the right side monomer is for receiving the silica flour that the silica flour clearance mechanism scraped that is used for receiving the material side, connects silica flour transport mechanism below this side, effect: the waste liquid is concentrated on one block to facilitate centralized treatment, and the cleaned silicon powder is subjected to centralized treatment.
Bubbling mechanism: the bubbling system is used for flushing carbon dioxide gas into the tank body of the machine, so that the original solution is changed into weak acid PH4, and the bubbling system has the following functions: the reaction speed of the waste liquid and water is reduced, the viscosity of the solution is increased, and the equipment is safer.
Silica flour clearance mechanism: adopt scraper formula structure, left doctor-bar, right doctor-bar circulation clearance, effect: and scraping the silicon powder which is filtered and adhered to the outer surface of the ceramic membrane to a conveying mechanism.
Silica flour transmission mechanism: the industrial conveyor belt is adopted to transport the silicon powder out of the equipment, namely the silicon powder is transported, in the process, the drying device at the lower end of the conveying mechanism plays a role in drying the silicon powder, and the drying device adopts one of electric heating, steam heating and oil heating.
Silica flour packagine machine constructs: sieving under vacuum drying condition, and vacuum packaging by automatically sucking silicon powder with different mesh numbers into packaging bags from the sieve.
Silicon powder transmission and storage mechanism: and transmitting the packaged silicon powder to a designated place.
And the central control mechanism comprises: the whole process can be monitored and controlled by the special central control mechanism, and the automatic production line is realized.
The working process is described as follows: the liquid pump 8 continuously pumps the silicon powder liquid into the liquid storage mechanism, an upper water level sensor and a lower water level sensor are arranged in the liquid storage mechanism, the liquid level is kept between the upper water level sensor and the lower water level sensor, the shaft motor is driven to rotate by a shaft, meanwhile, the vacuum pump works, silicon powder is continuously deposited on the surface of the filter disc, the silicon powder is gradually dried under the adsorption of the vacuum pump, the left scraping blade and the right scraping blade scrape the silicon powder deposited on the filter disc, the silicon powder falls onto the silicon powder conveying mechanism, the drying device firstly dries the silicon powder in the conveying process, the silicon powder reaches the vacuum packaging mechanism, and is screened under the vacuum drying condition, silicon powder with different meshes is automatically sucked into the packaging bag from the screen to be vacuumized and packaged, and the packaged silicon powder is conveyed to a designated place by the silicon powder conveying and warehousing mechanism.
The beneficial effects of the invention are as follows: the waste liquid with the silicon powder is separated into water and silicon powder, so that waste utilization is realized, waste materials are changed into valuable materials, and environmental protection is facilitated; the arrangement of the bubbling mechanism reduces the generation of silicic acid and the release of hydrogen, and improves the production safety; the device has low manufacturing cost and simple and practical structure, can be applied to the processing process of solar energy base materials and the production process of components, and can effectively solve the long-standing waste liquid treatment problem puzzling the industry; the device has unique effect on the aspect of waste liquid treatment in the solar energy market, and supplements the industry short plates so that the device is more competitive in the new energy and material industry.
Drawings
FIG. 1 is a schematic diagram of a first orientation of a silicon powder waste liquid recycling device according to the present invention;
FIG. 2 is a schematic diagram of a second azimuth structure of the silicon powder waste liquid recycling device of the invention;
FIG. 3 is a schematic diagram of a third directional structure of a silicon powder waste liquid recycling device according to the present invention;
The device comprises a liquid storage mechanism 1, a filtering mechanism 2, a pumping mechanism 3, a bubbling mechanism 4, a silicon powder cleaning mechanism 5, a silicon powder conveying mechanism 6, a vacuum packaging mechanism 7, a liquid pumping pump 8, a liquid inlet pipe 9, a liquid inlet pipe 11, a scooping body 12, a single body 21, a shaft 22, a filter disc 23, a shaft motor 51, a left scraping blade 52, a right scraping blade 41, a bubbling barrel 42, a connecting pipe 43, a distributing pipe 61, a conveying mechanism 62, a drying device 101, a vacuum pump 102 and a liquid discharging pipe.
Detailed Description
In order to enhance the understanding of the present invention, a silicon powder waste liquid recycling apparatus of the present invention will be described in further detail with reference to the examples and drawings, which are only for explaining the present invention and are not to be construed as limiting the scope of the present invention.
As shown in fig. 1 to 3, a silicon powder waste liquid recovery device comprises a liquid storage mechanism 1, a filtering mechanism 2 arranged on the liquid storage mechanism 1, a pumping mechanism 3 connected with the filtering mechanism 2, a bubbling mechanism 4 arranged in the liquid storage mechanism 1, a silicon powder cleaning mechanism 5 matched with a disc of the filtering mechanism 2, a silicon powder transmission mechanism 6 arranged at the lower end of the liquid storage mechanism 1, and a vacuum packaging mechanism 7 connected with the silicon powder transmission mechanism 6; the liquid storage mechanism 1 comprises a scooping body 11 and a plurality of single bodies 12 communicated with the scooping body 11, the filtering mechanism 2 comprises a shaft 21, a plurality of filter discs 22 communicated with the shaft 21 and a shaft motor 23 of a driving shaft, the shaft 21 is arranged above the scooping body 11 through a shaft sleeve, and one part of the filter discs 22 are positioned in the single bodies 12 and one part of the filter discs 22 are positioned in the scooping body 11; the silicon powder cleaning mechanism 5 comprises a left scraping blade 51 and a right scraping blade 52, and the left scraping blade 51 and the right scraping blade 52 are arranged on the single body 12 and are in scraping contact with the filter disc 22; the bubbling mechanism 4 comprises a bubbling barrel 41, a connecting pipe 42 and a distribution pipe 43 arranged in the scooping body 11, and a plurality of air outlet holes are arranged on the distribution pipe 43; the scooping body 11 is connected with the liquid inlet pipe 9 through the liquid pump 8; the shaft 21 is connected with a liquid discharge pipe 102 through a vacuum pump 101; the silicon powder conveying mechanism 6 comprises a conveying mechanism 61 and a drying device 62 arranged at the lower end of the conveying mechanism 61; the vacuum packaging mechanism 7 comprises a vibrating screen assembly, a vacuum assembly and a drying assembly, and is used for screening and sucking silicon materials in vacuum and drying atmosphere and packaging the silicon materials.
The working process is described as follows: the liquid pump 8 continuously pumps the silicon powder liquid into the liquid storage mechanism 1, an upper water level sensor and a lower water level sensor are arranged in the liquid storage mechanism, the liquid level is kept between the upper water level sensor and the lower water level sensor, the shaft motor 23 is driven to rotate by the shaft 21, meanwhile, the vacuum pump 101 works, silicon powder is continuously deposited on the surface of the filter disc 22, under the adsorption of the vacuum pump 101, the silicon powder is gradually dried, the left scraping blade 51 and the right scraping blade 52 scrape the silicon powder deposited on the filter disc 22, the silicon powder falls onto the silicon powder conveying mechanism 6, the drying device 62 firstly dries the silicon powder in the conveying process, the silicon powder reaches the vacuum packaging mechanism 7, the silicon powder is screened under the vacuum drying condition, silicon powder with different meshes is automatically sucked into the packaging bag from the screen to be vacuumized and packaged, and the packaged silicon powder conveying and warehousing mechanism conveys the packaged silicon powder to a designated place.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.
Claims (3)
1. The silicon powder waste liquid recycling device is characterized by comprising a liquid storage mechanism (1), a filtering mechanism (2) arranged on the liquid storage mechanism (1), a pumping mechanism (3) connected with the filtering mechanism (2), a bubbling mechanism (4) arranged in the liquid storage mechanism (1), a silicon powder cleaning mechanism (5) matched with a disc of the filtering mechanism (2), a silicon powder conveying mechanism (6) arranged at the lower end of the liquid storage mechanism (1) and a vacuum packaging mechanism (7) connected with the silicon powder conveying mechanism (6), wherein the liquid storage mechanism (1) comprises a scooping body (11) and a plurality of single bodies (12) which are in through connection with the scooping body (11), the filtering mechanism (2) comprises a shaft (21) and a plurality of filter discs (22) which are in through connection with the shaft (21), a shaft motor (23) of the driving shaft, the shaft (21) is arranged above the scooping body (11) through a shaft sleeve, one part of the filter discs (22) is positioned in the single bodies (12), and one part of the filter discs (22) is positioned in the scooping body (11). The silicon powder cleaning mechanism (5) comprises a left scraping blade (51) and a right scraping blade (52), and the left scraping blade (51) and the right scraping blade (52) are arranged on the single body (12) and are in scraping contact with the filter disc (22); the bubbling mechanism (4) comprises a bubbling barrel (41), a connecting pipe (42) and a distribution pipe (43) arranged in the scooping body (11), and a plurality of air outlet holes are formed in the distribution pipe (43); the silicon powder conveying mechanism (6) is a conveying mechanism (61) and a drying device (62) arranged at the lower end of the conveying mechanism (61); the vacuum packaging mechanism (7) comprises a vibrating screen assembly, a vacuum assembly and a drying assembly, and is used for screening and sucking the silicon materials in vacuum and drying atmosphere for packaging.
2. A silicon powder waste liquid recycling apparatus as set forth in claim 1 wherein said scooping body (11) is connected to the liquid inlet pipe (9) through a liquid pump (8).
3. A silicon powder waste liquid recycling apparatus as set forth in claim 1 wherein said shaft (21) is connected to a drain pipe (102) by a vacuum pump (101).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811601171.4A CN109704342B (en) | 2018-12-26 | 2018-12-26 | Silica flour waste liquid recovery plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811601171.4A CN109704342B (en) | 2018-12-26 | 2018-12-26 | Silica flour waste liquid recovery plant |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109704342A CN109704342A (en) | 2019-05-03 |
| CN109704342B true CN109704342B (en) | 2024-05-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811601171.4A Active CN109704342B (en) | 2018-12-26 | 2018-12-26 | Silica flour waste liquid recovery plant |
Country Status (1)
| Country | Link |
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| CN (1) | CN109704342B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011083759A (en) * | 2009-10-14 | 2011-04-28 | Kazumasa Onishi | Filtration apparatus and method suitable for manufacturing solar battery silicon |
| CN209396893U (en) * | 2018-12-26 | 2019-09-17 | 山东辰宇稀有材料科技有限公司 | A kind of silicon powder devil liquor recovery equipment |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101573298B (en) * | 2006-12-25 | 2012-11-14 | 日本碍子株式会社 | Wastewater treatment system and method of wastewater treatment |
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2018
- 2018-12-26 CN CN201811601171.4A patent/CN109704342B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011083759A (en) * | 2009-10-14 | 2011-04-28 | Kazumasa Onishi | Filtration apparatus and method suitable for manufacturing solar battery silicon |
| CN209396893U (en) * | 2018-12-26 | 2019-09-17 | 山东辰宇稀有材料科技有限公司 | A kind of silicon powder devil liquor recovery equipment |
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| CN109704342A (en) | 2019-05-03 |
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