Silicon material cleaning wastewater recycling device

Abstract

The utility model relates to the technical field of wastewater recycling treatment, in particular to a silicon material cleaning wastewater recycling device. Comprising a first treatment unit and a second treatment unit, a wastewater inlet of the first treatment unit is communicated with a water outlet of a quick discharge tank of a cleaning machine, a water outlet of the first treatment unit is communicated with a water inlet of a pre-cleaning machine, and a wastewater inlet of the second treatment unit is communicated with water outlets of residual rinsing tanks of the cleaning machine. And a water outlet of the second treatment unit is respectively communicated with water inlets of the pre-cleaning machine and the cooling tower. The device can be used for recycling rinsing wastewater in rinsing tanks such as a quick discharge tank, a pure water transition tank, an ultrasonic tank and a hot bath tank, and conveying the treated rinsing wastewater to tap water demand procedures such as a pre-cleaning machine and a cooling tower, so that the wastewater of the cleaning machine is recycled, the tap water consumption in other procedures is reduced, and the waste of water resources is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of wastewater reuse treatment, in particular to a silicon material cleaning wastewater reuse device. Background Art

[0002] The traditional silicon material cleaning process is to use mixed acid cleaning and then rinse with pure water. After the mixed acid cleaning, the silicon material is rinsed in a quick drain tank, a pure water transition tank, an ultrasonic tank and a hot bath tank in turn and then dried. During the cleaning process, only part of the ultrasonic tank wastewater is recycled to the quick drain tank for use, and the rest of the wastewater is directly discharged to the wastewater station.

[0003] Now the silicon material cleaning process has generally changed from mixed acid cleaning to reagent cleaning, and the silicon material pretreatment link is more strictly controlled, so there are fewer impurities on the surface of the silicon material during the later rinsing, which greatly improves the quality of wastewater discharged from the rinsing tanks such as the quick drain tank, pure water transition tank, ultrasonic tank and hot bath tank after rinsing. Except for containing silicon powder, the indicators of some ions are better than tap water. However, the current disposal method of this wastewater still uses the traditional wastewater disposal method of mixed acid cleaning, that is, part of the ultrasonic tank wastewater is recycled to the quick drain tank for use, and the rest of the wastewater is directly discharged to the wastewater station. The rinsing wastewater is not well reused, there is a problem of waste of water resources, and the water treatment cost is increased.

[0004] In view of this, the present utility model is proposed. Utility Model Content

[0005] The utility model aims to provide a silicon material cleaning wastewater recycling device, which can recycle the rinsing wastewater in rinsing tanks such as quick-drain tanks, pure water transition tanks, ultrasonic tanks and hot bath tanks, and transport the treated wastewater to pre-cleaning machines, cooling towers and other tap water demanding processes, so as to realize the recycling of the cleaning machine wastewater, reduce the tap water consumption in other processes, and reduce the waste of water resources.

[0006] In order to achieve the above-mentioned purpose of the utility model, the following technical solutions are specially adopted:

[0007] The utility model provides a silicon material cleaning wastewater recycling device, comprising a first processing unit and a second processing unit, the wastewater inlet of the first processing unit is connected to the water outlet of the quick discharge tank of the cleaning machine, the water outlet of the first processing unit is connected to the water inlet of the pre-cleaning machine, the wastewater inlet of the second processing unit is connected to the water outlet of the remaining rinsing tank of the cleaning machine, and the water outlet of the second processing unit is respectively connected to the water inlets of the pre-cleaning machine and a cooling tower.

[0008] In the above technical solution, further, the first treatment unit includes a first water storage tank, a first sedimentation tank and a first collecting tank are provided in the first water storage tank, the upper part of the first sedimentation tank and the first collecting tank are connected, the wastewater inlet of the first treatment unit is located in the first sedimentation tank, the water outlet of the first treatment unit is located on the first collecting tank, and the bottom sewage outlet of the first water storage tank is connected to the sewage pipeline.

[0009] In the above technical solution, further, the second treatment unit includes a second water storage tank, a second sedimentation tank and a second collecting tank are provided in the second water storage tank, the second sedimentation tank and the upper part of the second collecting tank are connected, the wastewater inlet of the second treatment unit is located in the second sedimentation tank, the water outlet of the second treatment unit is located on the second collecting tank, and the bottom sewage outlet of the second water storage tank is connected to the sewage pipeline.

[0010] In the above technical solution, further, a first high-level overflow pipe is provided on the upper part of the first water storage tank, the first high-level overflow pipe is connected to the sewage pipeline, the upper part of the second water storage tank is connected to the upper part of the first water storage tank through the second high-level overflow pipe, and the connection port of the first high-level overflow pipe and the first water storage tank is lower than the connection port of the second high-level overflow pipe and the first water storage tank.

[0011] In the above technical solution, further, the first processing unit is provided with a first solenoid valve on the water supply pipeline to the pre-cleaning machine, the second processing unit is provided with a second solenoid valve on the water supply pipeline to the cooling tower, and the second processing unit is provided with a third solenoid valve on the water supply pipeline to the pre-cleaning machine.

[0012] In the above technical solution, further, a first liquid level gauge is provided on the water outlet side of the first water storage tank, and a second liquid level gauge is provided on the water outlet side of the second water storage tank. The first liquid level gauge and the second liquid level gauge are connected to an alarm automatic control system, and the alarm automatic control system is connected to the signals of the first solenoid valve, the second solenoid valve and the third solenoid valve.

[0013] In the above technical solution, further, the first water storage tank is made of stainless steel with an inner sleeve of PPH material, and the height of the wastewater inlet of the first water storage tank from the bottom of the tank is 1 / 5-1 / 10 of the height of the first water storage tank.

[0014] In the above technical solution, further, the second water storage tank is made of stainless steel with an inner sleeve of PPH material, and the height of the wastewater inlet of the second water storage tank from the bottom of the tank is 1 / 5-1 / 10 of the height of the second water storage tank.

[0015] In the above technical solution, further, the water outlet of the first processing unit and the water outlet of the second processing unit are both provided with precision filters.

[0016] In the above technical solution, further, the water outlets of the quick drain tank and the residual rinsing tank are both provided with Y-type filters.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] The utility model processes the wastewater in each rinsing tank of a silicon material cleaning machine through a first processing unit and a second processing unit, removes silicon powder in the wastewater, and reuses the wastewater in a pre-cleaning machine, a cooling tower and other processes requiring tap water. The wastewater in the quick-discharge tank has a lower quality than that in the other rinsing tanks, and therefore the wastewater is processed separately. The first processing unit is used to process the wastewater in the quick-discharge tank, and the wastewater is reused in the pre-cleaning machine after the silicon powder is removed. The second processing unit is used to process the wastewater in the other rinsing tanks, and the wastewater is reused in the pre-cleaning machine and / or a cooling tower with higher water quality requirements after the silicon powder is removed, thereby realizing the recycling of the wastewater from the cleaning machine, reducing the amount of tap water used in other processes, and reducing the waste of water resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 A process flow chart provided for an embodiment of the utility model;

[0021] Figure 2 A structural diagram of a first processing unit and a second processing unit provided for an embodiment of the utility model.

[0022] Reference numerals:

[0023] 1-first treatment unit; 11-first water storage tank; 111-first sedimentation tank; 112-first collecting tank; 12-first solenoid valve; 2-second treatment unit; 21-second water storage tank; 211-second sedimentation tank; 212-second collecting tank; 22-second solenoid valve; 23-third solenoid valve; 3-first high-level overflow pipe; 4-second high-level overflow pipe; 5-water supply pipe; 51-water supply solenoid valve. DETAILED DESCRIPTION

[0024] The technical solution of the utility model will be clearly and completely described below in conjunction with the accompanying drawings and specific embodiments, but those skilled in the art will understand that the embodiments described below are part of the embodiments of the utility model, rather than all of the embodiments, and are only used to illustrate the utility model, and should not be considered as limiting the scope of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of the utility model. If the specific conditions are not specified in the embodiments, they are carried out according to conventional conditions or conditions recommended by the manufacturer. If the manufacturer is not specified for the reagents or instruments used, they are all conventional products that can be purchased commercially.

[0025] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0026] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] like Figure 1 and Figure 2 As shown, an embodiment of the utility model provides a silicon material cleaning wastewater recycling device, comprising a first treatment unit 1 and a second treatment unit 2, the wastewater inlet of the first treatment unit 1 is connected to the water outlet of the quick discharge tank of the cleaning machine, the water outlet of the first treatment unit 1 is connected to the water inlet of the pre-cleaning machine, the wastewater inlet of the second treatment unit 2 is connected to the water outlet of the residual rinsing tank of the cleaning machine, and the water outlet of the second treatment unit 2 is respectively connected to the water inlets of the pre-cleaning machine and the cooling tower.

[0028] After the silicon material cleaning process was changed to reagent cleaning, the silicon material pretreatment link was more strictly controlled, and there were fewer impurities on the surface of the silicon material during the later rinsing, which greatly improved the quality of the wastewater discharged from the rinsing tank after rinsing. Except for containing silicon powder, some indicators were even better than tap water. Therefore, if it can be treated and reused in the tap water demand process, it can significantly reduce the waste of water resources compared to the traditional direct discharge to the wastewater station.

[0029] The utility model treats the wastewater in the quick-drain tank and the remaining rinsing tanks respectively through the first treatment unit 1 and the second treatment unit 2. After the treatment, the wastewater can be reused in different processes according to the water quality requirements. The first treatment unit 1 is used to treat the wastewater discharged from the quick-drain tank, and the silicon powder is removed and then reused in the pre-cleaning machine. The second treatment unit 2 is used to treat the wastewater discharged from the remaining rinsing tanks, and the silicon powder is removed and then reused in the cooling tower and / or pre-cleaning machine with higher water quality requirements. The outlet water of the second treatment unit 2 can enter the cooling tower or the pre-cleaning machine, and the outlet water of the first treatment unit 1 can only enter the pre-cleaning machine but cannot enter the cooling tower. The utility model can realize the reuse of silicon material cleaning wastewater and reduce the waste of water resources.

[0030] In some specific embodiments of the present invention, the number of quick drain tanks can be one or more. If the number of quick drain tanks is more than one, the wastewater discharge pipes of the multiple quick drain tanks are merged and connected to the first treatment unit 1, and the remaining rinsing tanks include a pure water transition tank, an ultrasonic tank and a hot bath tank. The wastewater discharge pipes of the pure water transition tank, the ultrasonic tank and the hot bath tank are merged and connected to the second treatment unit 2.

[0031] In some specific embodiments of the utility model, the fluoride ion content in the wastewater discharged from the quick discharge tank is 0.01-0.02 mg / L, the conductivity is 100-800μs / cm, and the pH value is 2-5. The fluoride ion content of the wastewater discharged from the pure water transition tank, the ultrasonic tank and the hot bath tank after mixing is 0.0-0.01 mg / L, the conductivity is 0-50μs / cm, and the pH value is 4-7.

[0032] In some specific embodiments of the utility model, valves are provided on the wastewater discharge pipelines of each rinsing tank of the cleaning machine, and the valves can be opened on site as needed to recycle the wastewater.

[0033] In some specific embodiments of the utility model, the first treatment unit 1 includes a first water storage tank 11, in which a first sedimentation tank 111 and a first collecting tank 112 are provided, the upper parts of the first sedimentation tank 111 and the first collecting tank 112 are connected, the wastewater inlet of the first treatment unit 1 is located in the first sedimentation tank 111, the water outlet of the first treatment unit 1 is located on the lower side wall of the first collecting tank 112, and the bottom sewage outlet of the first water storage tank 11 is connected to the sewage pipeline.

[0034] In some specific embodiments of the present invention, the first sedimentation tank 111 and the first collecting tank 112 are separated by an overflow baffle, and the wastewater discharged from the quick discharge tank enters the first sedimentation tank 111 through the wastewater inlet of the first treatment unit 1 for sedimentation treatment to remove the silicon powder in the wastewater. After sedimentation treatment, the wastewater overflows from above the overflow baffle into the first collecting tank 112, and is discharged through the water outlet of the first treatment unit 1, and is transported to the tap water inlet of the pre-cleaning machine by a pressure-stabilizing pump. The bottom sewage outlet of the first water storage tank 11 is provided with a valve, and the silicon powder settled to the bottom can be discharged into the sewage pipeline through the sewage outlet.

[0035] In some specific embodiments of the utility model, the second treatment unit 2 includes a second water storage tank 21, in which a second sedimentation tank 211 and a second collecting tank 212 are provided, the upper parts of the second sedimentation tank 211 and the second collecting tank 212 are connected, the wastewater inlet of the second treatment unit 2 is located in the second sedimentation tank 211, the water outlet of the second treatment unit 2 is located on the lower side wall of the second collecting tank 212, and the bottom sewage outlet of the second water storage tank 21 is connected to the sewage pipeline.

[0036] In some specific embodiments of the present invention, the second sedimentation tank 211 and the second collecting tank 212 are separated by an overflow baffle, and the wastewater discharged from the pure water transition tank, the ultrasonic tank and the hot bath tank enters the second sedimentation tank 211 through the wastewater inlet of the second treatment unit 2 for sedimentation treatment to remove the silicon powder in the wastewater. After sedimentation treatment, the wastewater overflows from above the overflow baffle into the second collecting tank 212, and is discharged through the water outlet of the second treatment unit 2, and is transported to the tap water inlet of the pre-cleaning machine and / or the cooling tower by a pressure-stabilizing pump. The bottom sewage outlet of the second water storage tank 21 is provided with a valve, and the silicon powder settled to the bottom can be discharged into the sewage pipeline through the sewage outlet.

[0037] In a specific embodiment of the utility model, the diameter of the water inlet of the pre-cleaner is Φ25mm, the diameter of the water inlet of the cooling tower is Φ100mm, and the diameter of the sewage pipeline is Φ150mm.

[0038] In some specific embodiments of the utility model, a first high-level overflow pipe 3 is provided at the upper portion of the first water storage tank 11, and the first high-level overflow pipe 3 is connected to the sewage pipeline, so that when the water level in the first water storage tank 11 reaches a certain height, it can overflow from the first high-level overflow pipe 3 to avoid exceeding the capacity of the first water storage tank 11; the upper portion of the second water storage tank 21 is connected to the upper portion of the first water storage tank 11 through the second high-level overflow pipe 4, and the connection port of the first high-level overflow pipe 3 and the first water storage tank 11 is lower than the connection port of the second high-level overflow pipe 4 and the first water storage tank 11. The purpose of such a setting is that when the water level in the second water storage tank 21 reaches a certain height, the water in the second water storage tank 21 can overflow to the first water storage tank 11 for reuse, and at the same time, it can prevent the water in the first water storage tank 11 from entering the second water storage tank 21, thereby preventing the water in the first water storage tank 11 from entering the cooling tower.

[0039] like Figure 2 As shown, in a specific embodiment, the first high-level overflow pipe 3 is located on the side wall of the first sedimentation tank 111, and the height of the connection port between the first high-level overflow pipe 3 and the first water storage tank 11 is greater than the top height of the overflow baffle in the first water storage tank 11, ensuring that the water in the first sedimentation tank 111 can overflow into the first collecting tank 112; the second high-level overflow pipe 4 is arranged between the second collecting tank 212 and the first collecting tank 112, and when the water in the second collecting tank 212 reaches a certain water level, it can overflow into the first collecting tank 112 for reuse.

[0040] In some specific embodiments of the utility model, a first solenoid valve 12 is provided on the water supply pipeline from the first treatment unit 1 to the pre-cleaning machine, which is used to control the first treatment unit 1 to supply water to the pre-cleaning machine, a second solenoid valve 22 is provided on the water supply pipeline from the second treatment unit 2 to the cooling tower, and a third solenoid valve 23 is provided on the water supply pipeline from the second treatment unit 2 to the pre-cleaning machine, which are used to control the second treatment unit 2 to supply water to the cooling tower and the pre-cleaning machine, respectively.

[0041] In some specific embodiments of the present invention, a first liquid level meter is provided on the water outlet side of the first water storage tank 11 for detecting the liquid level on the water outlet side of the first water storage tank 11, and a second liquid level meter is provided on the water outlet side of the second water storage tank 21 for detecting the liquid level on the water outlet side of the second water storage tank 21. The first liquid level meter and the second liquid level meter are connected to an alarm automatic control system, and the alarm automatic control system is connected to the signals of the first solenoid valve 12, the second solenoid valve 22 and the third solenoid valve 23.

[0042] In a specific embodiment of the present utility model, a first liquid level sensor is arranged on the side wall of the first collecting tank 112, and is used to detect the liquid level in the first collecting tank 112 and transmit the liquid level information to the alarm automatic control system. The second liquid level sensor is arranged on the side wall of the second collecting tank 212, and is used to detect the liquid level in the second collecting tank 212 and transmit the liquid level information to the alarm automatic control system. A water supply pipe 5 is provided in the first collecting tank 112 or the second collecting tank 212, and is used to replenish tap water. A water supply solenoid valve 51 is provided on the water supply pipe 5. The alarm automatic control system controls the opening and closing of the first solenoid valve 12, the second solenoid valve 22, the third solenoid valve 23 and the water supply solenoid valve 51 according to the liquid level conditions in the first collecting tank 112 and the second collecting tank 212.

[0043] In a specific embodiment of the present invention, the water supply pipe 5 is located in the second collecting tank 212 .

[0044] The first collecting tank 112 and the second collecting tank 212 are both divided into low liquid level, middle liquid level and high liquid level. The low liquid level is 2 / 10-3 / 10 of the corresponding tank height from the tank bottom, the middle liquid level is 4 / 10-6 / 10 of the corresponding tank height from the tank bottom, and the high liquid level is 7 / 10-8 / 10 of the corresponding tank height from the tank bottom. When the water level in the first collecting tank 112 is higher than the low liquid level, the first solenoid valve 12 is opened to transport the water in the first collecting tank 112 to the pre-cleaning machine for reuse; when the water level in the second collecting tank 212 is higher than the middle liquid level, the second solenoid valve 22 is opened to transport the water in the second collecting tank 212 to the cooling tower for reuse; when the water level in the first collecting tank 112 is higher than the middle liquid level, the second solenoid valve 22 is opened to transport the water in the second collecting tank 212 to the cooling tower for reuse; When the liquid level alarm occurs, the system automatically closes the first solenoid valve 12. If the water level in the second collecting tank 212 is above the low liquid level, the third solenoid valve 23 is opened, and the second solenoid valve 22 is closed to transport the water in the second collecting tank 212 to the pre-cleaning machine for reuse. If the water level in the second collecting tank 212 is below the low liquid level, the water replenishment solenoid valve 51 is opened, and the third solenoid valve 23 is opened at the same time to replenish tap water to the second collecting tank 212 for use by the pre-cleaning machine. A separate tap water inlet pipe is provided on the cooling tower, so the water in the second collecting tank 212 is supplied to the pre-cleaning machine first. When the water in the second collecting tank 212 is sufficient, it is transported to the cooling tower for reuse.

[0045] In some specific embodiments of the present invention, the first water storage tank 11 is made of stainless steel with an inner sleeve of PPH material to prevent corrosion of the tank body. The height of the wastewater inlet of the first water storage tank 11 from the bottom of the tank is 1 / 5-1 / 10 of the height of the first water storage tank 11, and the distance between the wastewater inlet and the bottom of the tank is maintained to prevent long-term impact on the bottom of the tank and damage to the bottom of the tank.

[0046] In some specific embodiments of the present invention, the second water storage tank 21 is made of stainless steel with an inner sleeve of PPH material to prevent corrosion of the tank body. The height of the wastewater inlet of the second water storage tank 21 from the bottom of the tank is 1 / 5-1 / 10 of the height of the second water storage tank 21, and the distance between the wastewater inlet and the bottom of the tank is maintained to prevent long-term impact on the bottom of the tank and damage to the bottom of the tank.

[0047] In a specific embodiment of the present invention, the volume of the first water storage tank 11 is 12m 3 , the tank height is 2m, and the volume of the second water storage tank 21 is 20m 3 The tank height is 2m. The first water storage tank 11 and the second water storage tank 21 are placed 30cm apart from the ground. The sewage pipe is connected from the bottom. The wastewater inlet of the first water storage tank 11 and the second water storage tank 21 is 300mm away from the bottom of the tank. The first collecting tank 112 and the second collecting tank 212 are at a low liquid level at 1 / 4 of the tank height from the bottom of the tank, at a medium liquid level at 1 / 2 of the tank height from the bottom of the tank, and at a high liquid level at 3 / 4 of the tank height from the bottom of the tank.

[0048] In some specific embodiments of the present invention, the water outlet of the first treatment unit 1 and the water outlet of the second treatment unit 2 are both provided with precision filters, that is, the water outlet of the first collection tank 112 and the water outlet of the second collection tank 212 are both provided with precision filters for filtering the wastewater after sedimentation treatment, thereby further improving the treatment effect. The cleaning machine wastewater can be reused in different tap water demand processes after sedimentation and filtration treatment, thereby improving the utilization rate of water resources and reducing water resource waste.

[0049] In some specific embodiments of the present invention, the water outlets of the quick-drain tank and the residual rinsing tank are both provided with Y-type filters to prevent large particles of silicon material from entering and clogging the pipeline.

[0050] Although the present invention has been illustrated and described with specific embodiments, it should be appreciated that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Those skilled in the art should understand that the technical solutions described in the above embodiments may be modified, or some or all of the technical features thereof may be replaced by equivalents without departing from the spirit and scope of the present invention. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention. Therefore, this means that all these replacements and modifications within the scope of the present invention are included in the attached claims.

Claims

1. A silicon material cleaning wastewater recycling device, characterized in that: It includes a first treatment unit and a second treatment unit, the wastewater inlet of the first treatment unit is connected to the outlet of the quick-drain tank of the cleaning machine, the outlet of the first treatment unit is connected to the water inlet of the pre-cleaning machine, the wastewater inlet of the second treatment unit is connected to the outlet of the residual rinsing tank of the cleaning machine, and the outlet of the second treatment unit is connected to the water inlets of the pre-cleaning machine and the cooling tower respectively.

2. The silicon material cleaning wastewater recycling device according to claim 1 is characterized in that: The first treatment unit includes a first water storage tank, in which a first sedimentation tank and a first collecting tank are provided, the first sedimentation tank and the upper part of the first collecting tank are connected, the wastewater inlet of the first treatment unit is located in the first sedimentation tank, the water outlet of the first treatment unit is located on the first collecting tank, and the bottom sewage outlet of the first water storage tank is connected to the sewage pipeline.

3. The silicon material cleaning wastewater recycling device according to claim 2 is characterized in that: The second treatment unit includes a second water storage tank, in which a second sedimentation tank and a second collecting tank are provided, the second sedimentation tank is connected to the upper part of the second collecting tank, the wastewater inlet of the second treatment unit is located in the second sedimentation tank, the water outlet of the second treatment unit is located on the second collecting tank, and the bottom sewage outlet of the second water storage tank is connected to the sewage pipeline.

4. The silicon material cleaning wastewater recycling device according to claim 3 is characterized in that: A first high-level overflow pipe is provided at the upper portion of the first water storage tank, and the first high-level overflow pipe is connected to the sewage pipeline. The upper portion of the second water storage tank is connected to the upper portion of the first water storage tank through the second high-level overflow pipe, and the connection port of the first high-level overflow pipe and the first water storage tank is lower than the connection port of the second high-level overflow pipe and the first water storage tank.

5. The silicon material cleaning wastewater recycling device according to claim 3 is characterized in that: A first solenoid valve is provided on the water supply pipeline from the first processing unit to the pre-cleaner, a second solenoid valve is provided on the water supply pipeline from the second processing unit to the cooling tower, and a third solenoid valve is provided on the water supply pipeline from the second processing unit to the pre-cleaner.

6. The silicon material cleaning wastewater recycling device according to claim 5, characterized in that: A first liquid level gauge is provided on the water outlet side of the first water storage tank, and a second liquid level gauge is provided on the water outlet side of the second water storage tank. The first liquid level gauge and the second liquid level gauge are connected to an alarm automatic control system, and the alarm automatic control system is connected to signals of the first solenoid valve, the second solenoid valve and the third solenoid valve.

7. The silicon material cleaning wastewater recycling device according to claim 2, characterized in that: The first water storage tank is made of stainless steel with an inner sleeve of PPH material. The height of the wastewater inlet of the first water storage tank from the bottom of the tank is 1 / 5-1 / 10 of the height of the first water storage tank.

8. The silicon material cleaning wastewater recycling device according to claim 3, characterized in that: The second water storage tank is made of stainless steel with an inner sleeve of PPH material. The height of the wastewater inlet of the second water storage tank from the bottom of the tank is 1 / 5-1 / 10 of the height of the second water storage tank.

9. The silicon material cleaning wastewater recycling device according to claim 1, characterized in that: The water outlet of the first processing unit and the water outlet of the second processing unit are both provided with precision filters.

10. The silicon material cleaning wastewater recycling device according to claim 1, characterized in that: The water outlets of the quick-drain tank and the remaining rinsing tank are both provided with Y-type filters.

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