CN207567018U - A kind of photovoltaic silicon wafer production wastewater treatment device - Google Patents
A kind of photovoltaic silicon wafer production wastewater treatment device Download PDFInfo
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- CN207567018U CN207567018U CN201721470619.4U CN201721470619U CN207567018U CN 207567018 U CN207567018 U CN 207567018U CN 201721470619 U CN201721470619 U CN 201721470619U CN 207567018 U CN207567018 U CN 207567018U
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- water
- silicon wafer
- water tank
- degumming machine
- cleaning
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Abstract
The utility model is related to photovoltaic silicon wafer production fields.A kind of photovoltaic silicon wafer production wastewater treatment device, the import of whole sinks of silicon wafer cleaner all connects extraneous cleaning water source, the cleaning agent sink outlet connection waste water water tank of silicon wafer cleaner, other sinks outlet of silicon wafer cleaner connects the first water inlet of degumming machine water tank by filter screen, second water inlet of degumming machine water tank connects extraneous cleaning water source by valve, the water outlet connection degumming machine water inlet of degumming machine water tank, degumming machine water outlet connects waste water water tank, the extraneous cleaning water source of water inlet connection of silicon wafer cutting device, the water outlet connection waste water water tank of silicon wafer cutting device.The utility model supplies degumming machine use by the way that the sink other than the cleaning agent sink of silicon wafer cleaner is exported out water, reduces the consumption to extraneous clean water source, while also reduce the pressure at sewage disposal end.
Description
Technical field
The utility model is related to photovoltaic silicon wafer production fields.
Background technology
At present end, silicon chip cutting wastewater, lactic acid degumming waste water, Wafer Cleaning process overflow water containing alkali are manufactured in photovoltaic silicon wafer
It carries out to be mixed and is directly discharged to sewage disposal process.The usage amount of water is about in 18t/ during the manufacturing of silicon chip
Ten thousand, consumption 600t/m, while water is consumed, the waste water of generation carries a large amount of PEG, COD contents is caused to increase, mesh
The production waste water at preceding photovoltaic industry silicon chip manufacture end takes extensive recycling method not yet, generally adds at sewage disposal end
Great dynamics processing.Larger pressure is brought to sewage disposal end.
Invention content
Technical problem to be solved in the utility model is：How the pressure at sewage disposal end is reduced.
Technical solution is used by the utility model：A kind of photovoltaic silicon wafer production wastewater treatment device, silicon wafer cleaner
The imports of whole sinks all connect extraneous cleaning water source, the cleaning agent sink outlet connection waste water water tank of silicon wafer cleaner, silicon
Other sinks outlet of piece cleaning machine is by the first water inlet of filter screen connection degumming machine water tank, and the of degumming machine water tank
Two water inlets connect extraneous cleaning water source, the water outlet connection degumming machine water inlet of degumming machine water tank, degumming machine by valve
Water outlet connects waste water water tank, the extraneous cleaning water source of water inlet connection of silicon wafer cutting device, the water outlet of silicon wafer cutting device
Connect waste water water tank.
As a kind of preferred embodiment：Water in waste water water tank is at after precipitation by plate and frame filter press heel row to sewage
Manage end.
The beneficial effects of the utility model are：The utility model passes through other than the cleaning agent sink of silicon wafer cleaner
Sink exports out water supply degumming machine and uses, and reduces the consumption to extraneous clean water source, while also reduce sewage disposal
The pressure at end.
Description of the drawings
Fig. 1 is the structure diagram of the utility model；
Wherein, 1, extraneous cleaning water source, the 2, the 4th and the 5th sink import, the outlet of the 3, the 4th and the 5th sink, 4, other
Sink import, 5, the outlet of other sinks, 6, waste water water tank, 7, filter screen, 8, degumming machine, 9, silicon wafer cutting device, 10, degumming machine
First water inlet of water tank, 11, the water outlet of degumming machine water tank, 12, the second water inlet of degumming machine water tank, 13, valve
Door.
Specific embodiment
Due to the particularity of photovoltaic silicon wafer, lead to general photovoltaic silicon wafer uses water can only be disposable, if repeatedly made
With will be adversely affected to the production of silicon chip, studies have found that, it is other other than the cleaning agent sink of silicon wafer cleaner
The water of sink can supply degumming machine use.
As shown in Figure 1, the silicon wafer cleaner of Shanxi Lu An solar energy Science and Technology Ltd. has 9 sinks, wherein the 4th He
5th sink is cleaning agent sink, and the import of whole sinks of silicon wafer cleaner all connects extraneous cleaning water source, silicon wafer cleaner
Cleaning agent sink outlet（4th and the 5th sink exports）Connect waste water water tank, other sinks of silicon wafer cleaner（First arrives
Third sink, the 6th to the 9th sink）Outlet passes through filter screen（Using two-stage strainer filtering, ensure sundries and large granular impurity
Water tank can not be back to water）The first water inlet of degumming machine water tank is connected, the second water inlet of degumming machine water tank leads to
Cross the extraneous cleaning water source of valve connection, the water outlet connection degumming machine water inlet of degumming machine water tank, the connection of degumming machine water outlet
Waste water water tank, the extraneous cleaning water source of water inlet connection of silicon wafer cutting device, the water outlet connection waste water water of silicon wafer cutting device
Case.When the water come out from the 4th and the 5th sink disclosure satisfy that degumming machine water storage tank water level requirement, degumming machine water tank is closed
The second water inlet connection valve, when the 4th and the 5th sink come out water it is impossible to meet the requirements of degumming machine water storage tank water level
When, the valve for opening the second water inlet connection of degumming machine water tank does not rush certain extraneous clean water to degumming machine water tank.
Water in waste water water tank after precipitation by plate and frame filter press heel row to sewage disposal end.By in waste water silica flour, SIC and
Impurity filters out, while carrying out dropping solid processing, can itself PEG being taken out of by silica flour, SIC and impurity, it is useless to reach reduction
The purpose of COD contents in water.Antifoaming agent is put into degumming machine water tank, recycle-water can be made to generate in use a small amount of
Foam can be eliminated in time.
After the utility model puts into operation, silicon chip manufacture end quantity of wastewater effluent will be largely cut down, alleviates shortage of water resources
Contradiction.The utility model low in input cost can be promoted the use of in photovoltaic silicon wafer of the same trade manufacture link.Contribute to enterprise will
" cost efficiency " " energy-saving and emission-reduction " theory falls into crucial point.Manufacturing waste water by this method silicon chip will be by 18 tons before/ten thousand drop
As low as 15 tons/ten thousand, COD contents are reduced to 1200mg/l by 4000mg/l before in waste water --- between 1600mg/l.
Claims (2)
1. a kind of photovoltaic silicon wafer production wastewater treatment device, it is characterised in that：The import of whole sinks of silicon wafer cleaner all connects
Extraneous cleaning water source, the cleaning agent sink outlet connection waste water water tank of silicon wafer cleaner are connect, other sinks of silicon wafer cleaner go out
Mouth connects the first water inlet of degumming machine water tank by filter screen, and the second water inlet of degumming machine water tank is connected by valve
External world cleaning water source, the water outlet connection degumming machine water inlet of degumming machine water tank, degumming machine water outlet connection waste water water tank, silicon
The extraneous cleaning water source of water inlet connection of piece cutter device, the water outlet connection waste water water tank of silicon wafer cutting device.
2. a kind of photovoltaic silicon wafer production wastewater treatment device according to claim 1, it is characterised in that：In waste water water tank
Water after precipitation by plate and frame filter press heel row to sewage disposal end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721470619.4U CN207567018U (en) | 2017-11-07 | 2017-11-07 | A kind of photovoltaic silicon wafer production wastewater treatment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721470619.4U CN207567018U (en) | 2017-11-07 | 2017-11-07 | A kind of photovoltaic silicon wafer production wastewater treatment device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207567018U true CN207567018U (en) | 2018-07-03 |
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ID=62692903
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721470619.4U Active CN207567018U (en) | 2017-11-07 | 2017-11-07 | A kind of photovoltaic silicon wafer production wastewater treatment device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207567018U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110563197A (en) * | 2019-08-30 | 2019-12-13 | 上海洗霸科技股份有限公司 | Recycling and reusing treatment system and process for polycrystalline silicon cleaning wastewater |
-
2017
- 2017-11-07 CN CN201721470619.4U patent/CN207567018U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110563197A (en) * | 2019-08-30 | 2019-12-13 | 上海洗霸科技股份有限公司 | Recycling and reusing treatment system and process for polycrystalline silicon cleaning wastewater |
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