CN110937733A - Dicing knife cleaning cooling liquid recycling device - Google Patents
Dicing knife cleaning cooling liquid recycling device Download PDFInfo
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- CN110937733A CN110937733A CN201911337182.0A CN201911337182A CN110937733A CN 110937733 A CN110937733 A CN 110937733A CN 201911337182 A CN201911337182 A CN 201911337182A CN 110937733 A CN110937733 A CN 110937733A
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/444—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by ultrafiltration or microfiltration
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/469—Treatment of water, waste water, or sewage by electrochemical methods by electrochemical separation, e.g. by electro-osmosis, electrodialysis, electrophoresis
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/14—Maintenance of water treatment installations
Abstract
The invention discloses a scribing knife cleaning cooling liquid recycling device which comprises a waste liquid collecting unit, a micro-filtration unit, a first water storage unit, a waste liquid purification unit and a second water storage unit, wherein the waste liquid collecting unit, the micro-filtration unit, the first water storage unit, the waste liquid purification unit and the second water storage unit are communicated in sequence through pipelines; the waste liquid purification unit comprises an electrodeionization device with a water inlet and a water outlet, the water outlet of the electrodeionization device comprises a concentrated water outlet and a pure water outlet, the concentrated water outlet is communicated to the second water storage unit through a pipeline, and the concentrated water outlet is communicated to the waste liquid collection unit and the first water storage unit respectively through a pipeline. The device for recycling the scribing cutter cleaning cooling liquid can recycle the cleaning cooling liquid generated by the scribing process, meets the requirement of pure water for reuse in the scribing process, and achieves the purposes of saving energy, reducing emission and reducing production cost.
Description
Technical Field
The invention relates to a device for recycling cleaning cooling liquid of a scribing knife.
Background
In the dicing process of semiconductor chip processing, a dicing blade is used to divide a large wafer (e.g., a 12-inch silicon wafer) into small chips having individual unit integrated circuits, and in this process, a large amount of pure water is used to clean the wafer surface and the minute particles and the cleaning agent remaining on the dicing blade, or the dicing blade is cooled, which results in a waste of water resources in this process. Because the generated cleaning cooling liquid only contains silicon powder particles and a small amount of cleaning agent, the generated cleaning cooling liquid for the scribing cutter can be reasonably treated and recycled. However, many current wastewater treatment systems still suffer from frequent replacement and maintenance of machinery due to the tiny particles in the waste liquid, thereby affecting the filtration effect; and the utilization efficiency of water resources is poor.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides the scribing knife cleaning cooling liquid recycling device which is easier to maintain and has higher water resource utilization rate.
In order to achieve the above purpose, the invention is realized by the following technical scheme:
a scribing knife cleaning cooling liquid recycling device comprises a waste liquid collecting unit, a micro-filtration unit, a first water storage unit, a waste liquid purification unit and a second water storage unit, wherein the waste liquid collecting unit, the micro-filtration unit, the first water storage unit, the waste liquid purification unit and the second water storage unit are sequentially communicated through pipelines; the waste liquid purification unit comprises an electrodeionization device with a water inlet and a water outlet, the water outlet of the electrodeionization device comprises a concentrated water outlet and a pure water outlet, the pure water outlet is communicated to the second water storage unit through a pipeline, and the concentrated water outlet is communicated to the waste liquid collection unit and the first water storage unit through a pipeline respectively.
Preferably, the waste liquid collecting unit comprises a waste liquid tank, a waste liquid tank and a lift pump, the lift pump is arranged in the waste liquid tank, and the lift pump pumps the waste liquid into the waste liquid tank after the liquid level in the waste liquid tank reaches a preset value.
Preferably, the waste liquid collecting unit includes waste liquid pond and waste liquid groove, the microfiltration unit includes a plurality of tubular microfiltration devices, circulating pump, first circulating valve and second circulating valve, wherein sets up in parallel between a plurality of tubular microfiltration devices, waste liquid groove, circulating pump, first circulating valve, a plurality of tubular microfiltration devices and second circulating valve communicate in proper order.
Preferably, the microfiltration unit still includes that the medicine washes the inlet valve and the outlet valve is washed to the medicine, wherein one side that the inlet valve was washed to the medicine communicates with chemical cleaning agent bucket, and the opposite side communicates the circulating pump, one side that the outlet valve was washed to the medicine with the second circulating valve intercommunication, the opposite side communicate back to chemical cleaning agent bucket.
Preferably, the microfiltration unit further comprises a water backwashing valve, a gas backwashing valve and a blowoff valve, wherein the water backwashing valve is arranged on a pipeline between the second water storage unit or the external pure water supplementing device and the plurality of tubular microfiltration devices, the gas backwashing valve is arranged on a pipeline between the external gas storage device and the plurality of tubular microfiltration devices, and the blowoff valve is arranged on a pipeline between the waste liquid tank and the plurality of tubular microfiltration devices.
Preferably, the first water storage unit comprises a water storage tank, a first water delivery valve and a second water delivery valve, the microfiltration unit comprises a plurality of tubular microfiltration devices, and the first water delivery valve is arranged on a pipeline between the plurality of tubular microfiltration devices and the water storage tank so as to introduce the filtered waste liquid into the water storage tank; the waste liquid collecting unit comprises a waste liquid pool, and the second water conveying valve is arranged on a pipeline between the plurality of tubular microfiltration devices and the waste liquid pool so as to guide the waste liquid back to the waste liquid pool.
Preferably, the first water storage unit comprises a water storage tank, and the waste liquid purification unit comprises an electrodeionization device, a delivery pump, a liquid inlet valve, a water production valve and a discharge valve, wherein the water storage tank, the delivery pump, the liquid inlet valve and the electrodeionization device are sequentially communicated to deliver waste liquid into the electrodeionization device; the water producing valve is communicated with the pure water outlet to control pure water to be discharged to the second water storage unit; the waste liquid collecting unit comprises a waste liquid pool, and the discharge valve is communicated with the concentrated water outlet to control concentrated water to be discharged to the water storage tank or the waste liquid pool.
Preferably, the second water storage unit includes first pure water bin and second pure water bin, it includes first pure aquatic products water valve, the pure aquatic products water valve of second and the pure aquatic products water valve of third to produce the water valve, first pure aquatic products water valve and the pure water of second are produced the water valve and are correspondingly linked to through the pipeline respectively first pure water bin and the pure water bin of second, the water valve is produced to the pure water of third communicates through the pipeline the storage water tank.
Preferably, the discharge valve comprises a first concentrate discharge valve provided on a pipeline between the electrodeionization device and the waste water tank, and a second concentrate discharge valve provided on a pipeline between the electrodeionization device and the water storage tank.
Preferably, the waste liquid purification unit further comprises an activated carbon filter, and the activated carbon filter is arranged on a pipeline communicated between the liquid inlet valve and the electric deionization device.
Preferably, the waste liquid purification unit is further provided with a cleaning water inlet valve, a cleaning water inlet, a cleaning water outlet and a cleaning water circulation valve, the cleaning water tank is communicated with the delivery pump according to the flow direction of cleaning water, the cleaning water inlet valve and the cleaning water inlet are sequentially communicated, the cleaning water tank is communicated back from the cleaning water outlet, and the cleaning water circulation valve is arranged on a pipeline communicated between the cleaning water tank and the delivery pump.
Preferably, the system also comprises a monitoring unit, wherein the monitoring unit comprises a plurality of liquid level detectors, a plurality of conductivity detectors and a control cabinet, the plurality of liquid level detectors and the plurality of conductivity detectors are respectively connected with the control cabinet, the control cabinet is respectively connected to the waste liquid collecting unit, the micro-filtration unit, the first water storage unit, the waste liquid purification unit and the second water storage unit, and the control display panel arranged on the control cabinet is used for controlling the recovery and treatment of the waste liquid
Preferably, the waste liquid collecting unit comprises a waste liquid pool and a waste liquid tank, the first water storage unit comprises a water storage tank, and the liquid level detectors are respectively arranged in the waste liquid pool, the waste liquid tank, the water storage tank and the second water storage unit to monitor the liquid level; the waste liquid purification unit comprises an electrodeionization device, and the conductivity detector is respectively arranged in the electrodeionization device and the water storage tank to detect the water inlet conductivity.
Compared with the prior art, the scribing cutter cleaning cooling liquid recycling device provided by the invention can be used for recycling waste liquid generated by the scribing process, meets the requirement of pure water for being applied to the scribing process again, and achieves the purposes of saving energy, reducing emission and reducing production cost; the invention has the microfiltration circulation loop and the purification circulation loop which are independent from each other and are communicated through the first water storage unit, so that the scribing blade cleaning cooling waste liquid is subjected to microfiltration and then is subjected to a purification process, and the waste liquid filtration efficiency is improved; the waste liquid purification unit, the first water storage unit and the second water storage unit also form a circulation loop, so that concentrated water generated after purification can enter the first water storage unit for purification again under the condition of low water inlet conductivity, the purification efficiency of waste liquid is improved, the external discharge is greatly reduced, and the pollution is reduced; the device is also provided with a cleaning and maintaining valve and an inlet and an outlet, so that the cleaning agent storage barrel can be conveniently communicated, cleaning can be carried out through a circulation loop in the device, the service life is prolonged, the waste liquid recovery efficiency is improved, and the normal use of pure water in the scribing process can be ensured.
Drawings
Fig. 1 is a schematic flow chart of a dicing blade cleaning coolant recycling device according to embodiment 1 of the present invention.
Fig. 2 is a schematic structural view of a dicing blade cleaning coolant recycling device according to embodiment 1 of the present invention.
Fig. 3 is a schematic structural view of a dicing blade cleaning coolant recycling device according to embodiment 2 of the present invention.
Fig. 4 is a schematic structural view of a dicing blade cleaning coolant recycling device according to embodiment 3 of the present invention.
Detailed Description
The invention is described in detail below with reference to the attached drawing figures:
example 1
As shown in fig. 1, the device for recycling the scribing cutter cleaning cooling liquid provided by the invention comprises a waste liquid collecting unit 10, a microfiltration unit 20, a first water storage unit 30, a waste liquid purifying unit 40, a second water storage unit 50 and a monitoring unit; the waste liquid collecting unit 10, the micro-filtration unit 20, the first water storage unit 30, the waste liquid purification unit 40 and the second water storage unit 50 are sequentially communicated through pipelines. Pure water generated by the waste liquid purification unit is stored in the second water storage unit 50 for scribing cleaning or spindle cooling, and the generated concentrated water is returned to the waste liquid collection unit 10 or the first water storage unit 30 for filtration or purification again.
The monitoring unit comprises a plurality of liquid level detectors, a plurality of conductivity detectors and a control cabinet, wherein the plurality of liquid level detectors and the plurality of conductivity detectors are respectively connected with the control cabinet, and then the control cabinet is respectively connected to the waste liquid collecting unit 10, the micro-filtration unit 20, the first water storage unit 30, the waste liquid purification unit 40 and the second water storage unit 50. The control cabinet is provided with a control display panel, the control display panel displays the liquid level value detected by the liquid level detector and the conductance value detected by the conductance detector, and parameters can be set by controlling the display panel, so that the control cabinet controls the whole recycling device. The concentrated water generated by the waste liquid purification unit is detected by the conductivity detector, the obtained water inlet conductivity is higher than a preset value, the concentrated water is led back to the waste liquid collection unit, and if the water inlet conductivity is lower than the preset value, the concentrated water is led to the first storage device for purification again, so that the purification efficiency is improved, the water quantity in a circulation loop of the whole device is balanced, and the minimum discharge is realized.
As shown in fig. 2, the waste liquid collecting unit 10 includes a waste liquid tank 110, a waste liquid tank 120, and a lift pump 130, and the lift pump 130 is provided in the waste liquid tank 110. The waste liquid tank 110 is disposed underground and the lift pump is an underground water tank submersible pump. Waste liquid generated after the scribing process is collected into the waste liquid tank 110, a liquid level detector is arranged in the waste liquid tank 110, and when the detected liquid level reaches a preset value, the lift pump 130 pumps the waste liquid into the waste liquid tank 120.
The microfiltration unit 20 comprises a plurality of tubular microfiltration devices 210, a circulation pump 220, a first circulation valve 230 and a second circulation valve 240, wherein the plurality of tubular microfiltration devices 210 are arranged in parallel; the waste liquid tank 120, the circulation pump 220, the first circulation valve 230, the plurality of tubular microfiltration devices 210 and the second circulation valve 240 are sequentially communicated through a pipeline. Be equipped with the liquid level detector in the waste liquid groove 120, thereby in the circulating pump 220 then takes out the waste liquid from waste liquid groove 120 and send to first circulation valve 230 and send into a plurality of tubular microfiltration devices 210 after the liquid level that detects reaches the preset value, because a plurality of tubular microfiltration devices 210 are parallel arrangement and set up with the circulation valve cooperation, make the waste liquid can carry out the microfiltration many times between a plurality of tubular microfiltration devices 210, in order to form the microfiltration circulation circuit in microfiltration unit 20, this filtration effect of scribing sword waste liquid in microfiltration unit 20 has just been improved.
The first water storage unit 30 comprises a water storage tank 310, a first water delivery valve 320 and a second water delivery valve 330, wherein the first water delivery valve 320 is arranged on a pipeline which is communicated with the plurality of tubular microfiltration devices 210 and the water storage tank 310 so as to introduce the filtered waste liquid into the water storage tank 310; a second water transfer valve 330 is disposed on a pipe line connecting the plurality of tubular microfiltration devices 210 and the waste liquid tank 110 to introduce a portion of the filtered waste liquid back to the waste liquid tank 110.
The waste liquid purifying unit 40 includes an electrodeionization device 410, a transfer pump 420, a liquid inlet valve 430, a water producing valve, and a drain valve, and the water storage tank 310, the transfer pump 420, the liquid inlet valve 430, and the electrodeionization device 410 are sequentially communicated through a pipeline, wherein the electrodeionization device 410 has a water inlet and a water outlet, and the water outlet includes a concentrated water outlet and a pure water outlet. The water storage tank 310 is provided with a liquid level detector, when the liquid level in the water storage tank 310 reaches a preset value, the electrodeionization device 410 is automatically started, and the conveying pump 420 conveys the filtered waste liquid in the water storage tank 310 into the electrodeionization device 410 through a water inlet through the liquid inlet valve 430. The electrodeionization device 410 purifies the waste liquid to generate pure water and concentrated water rich in ions, and a water generating valve is communicated with a pure water outlet to control the generated pure water to be conveyed to the second water storage unit 50; the discharge valve is connected to the concentrate outlet to control the discharge of concentrate into the storage tank 310 or the waste tank 110.
The waste liquid purifying unit 40 further includes an activated carbon filter 460, the activated carbon filter 460 is disposed on a pipeline communicating the liquid inlet valve 430 and the electrodeionization device 410, so that the microfiltered waste liquid firstly enters the activated carbon filter 460 for secondary filtration, and then enters the electrodeionization device 410 for purification. The waste liquid purifying unit 40 is further provided with an activated carbon inlet valve and an activated carbon outlet valve, the activated carbon inlet valve controls the waste liquid after microfiltration to be introduced into the activated carbon filter 460 under the action of the delivery pump 420, and the activated carbon outlet valve leads out the water produced after secondary filtration to be discharged into the electrodeionization device 410.
The second water storage unit 50 includes a first pure water storage tank 510 and a second pure water storage tank 520, and the water production valve of the waste liquid purification unit 40 includes a first pure water outlet valve 441, a second pure water outlet valve 442, and a third pure water outlet valve 443. The first and second pure water outlet valves 441 and 442 are respectively communicated with the first and second pure water storage tanks 510 and 520 through pipes, respectively. The third pure water outlet valve 443 is connected to the water storage tank 310 through a pipeline, so that a purification circulation loop is formed among the water storage tank 310, the transfer pump 420 and the electrodeionization device 410. The pure water collected by the first pure water storage tank 510 is reused for cleaning in the dicing process, and the pure water collected by the second pure water storage tank 520 is used for cooling the spindle in the semiconductor chip processing. And the pure water returned to the storage tank 310 through the third pure water outlet valve 443 is used to supplement and balance the purification cycle formed between the storage tank 310 and the electrodeionization device 410.
The drain valves include a first concentrate drain valve 451 and a second concentrate drain valve 452, wherein the first concentrate drain valve 451 is provided on a pipeline communicating between the electrodeionization device 410 and the waste water tank 110, and the second concentrate drain valve 452 is provided on a pipeline communicating between the electrodeionization device 410 and the water storage tank 310. The electrodeionization device 410 is provided with a conductivity detector, when the water inlet conductivity of the concentrated water in the electrodeionization device 410 is higher than a preset value, the first concentrated water discharge valve 451 is opened, the second concentrated water discharge valve 452 is closed, so that the concentrated water is sent back to the waste liquid tank 110, when the water inlet conductivity of the concentrated water in the electrodeionization device 410 is lower than the preset value, the second concentrated water discharge valve 452 is opened, the first concentrated water discharge valve 452 is closed, so that the concentrated water is sent to the water storage tank 310 for purification again, the purification efficiency is improved, and the lowest outward discharge is achieved.
The liquid level detectors are respectively arranged in the waste liquid tank 110, the waste liquid tank 120, the water storage tank 310, the first pure water storage tank 510 and the second pure water storage tank 520 to detect liquid level values; conductivity detectors are provided in the water storage tank 310 and the electrodeionization device 410, respectively, to detect the conductivity value of the incoming water. After the numerical values detected by the liquid level detector and the conductivity detector are fed back to the control cabinet, the flow direction of the waste liquid, the pure water and the concentrated water is controlled by the control cabinet. An operator can set the recycling device by controlling the display panel, so that the control unit can automatically operate the whole recycling device.
Example 2
The basic structure of this embodiment is the same as that of embodiment 1, and in order to facilitate the maintenance and cleaning of the microfiltration unit, as shown in fig. 3, in the waste liquid collection unit 10, a liquid inlet control valve is provided on a pipeline connecting between the waste liquid tank 110 and the waste liquid tank 120, and a first liquid outlet control valve is provided on another pipeline connecting between the waste liquid tank 110 and the waste liquid tank 120, so that a waste liquid collection circulation loop is formed in the waste liquid collection unit 10. At this time, a second effluent control valve is disposed on a pipe connecting the waste liquid tank 120 and the circulation pump 220 to guide the waste liquid to the microfiltration unit 20.
The microfiltration unit includes a plurality of tubular microfiltration devices 210, a circulation pump 220, a first circulation valve 230 and a second circulation valve 240, and a first circulation regulation valve and a second circulation regulation valve. Wherein the first circulation regulating valve is arranged on a pipeline communicated between the second circulation valve 240 and the waste liquid tank 120, and controls the waste liquid to return to the waste liquid tank; the second circulation regulating valve is disposed on a pipeline communicating the second circulation valve 240 and the plurality of tubular microfiltration devices connected in parallel, and is used for reintroducing the filtered waste liquid into the tubular microfiltration devices for filtration, and has an effect of regulating flow.
Along with the operation of the whole microfiltration unit, the produced water flow of the filtered waste liquid of the tubular microfiltration device 210 will have a slow descending trend, and at this time, the microfiltration unit needs to be chemically cleaned to recover the effective produced water flow. The micro-filtration unit 20 is provided with a drug washing inlet valve 250 and a drug washing outlet valve 260, wherein one side of the drug washing inlet valve 250 is communicated with the chemical cleaning agent barrel, the other side is communicated with the circulating pump 220, one side of the drug washing outlet valve 260 is communicated with the second circulating valve 240, and the other side is communicated back to the chemical cleaning agent barrel, so as to form a drug washing micro-filtration circulating loop.
Firstly, checking to ensure that the pipeline of the whole microfiltration unit has no leakage, then preparing a chemical cleaning agent in a chemical cleaning agent barrel, and respectively communicating the chemical cleaning inlet valve 250 and the chemical cleaning outlet valve 260 with the chemical cleaning agent barrel through pipelines. Only the first circulating valve 230, the second circulating valve 240, the drug washing inlet valve 250 and the drug washing outlet valve 260 are opened, the drug is pumped by the circulating pump 220 and sequentially sent from the drug washing inlet valve 250 to the first circulating valve 230, the plurality of tubular microfiltration devices 210, the second circulating valve 240 and the drug washing outlet valve 260, and finally sent back to the chemical cleaning agent barrel to form a circulating loop.
The microfiltration unit 20 further comprises a water backwashing valve 270, a gas backwashing valve 280 and a blowdown valve 290, wherein the water backwashing valve 250 is arranged on a pipeline communicated with an external pure water supplementing device (not shown) or between the second water storage unit 50 and the plurality of tubular microfiltration devices 210, and the gas backwashing valve 260 is arranged on a pipeline communicated between the gas storage device 600 and the plurality of tubular microfiltration devices 210; the blowdown valve 290 is disposed on a pipe connecting the waste tank 110 and the plurality of tubular microfiltration devices 210. After the chemical cleaning is finished, the circulation pump 220 is closed, the blowdown valve 290 is opened, the chemical cleaning agent remained in the microfiltration unit 20 is discharged, the first circulation valve 230 and the second circulation valve 240 are closed, the water backwashing valve 270 and/or the gas backwashing valve 280 are opened, pure water and/or compressed air is used for flushing for 2-3 minutes, and then the water backwashing valve 270 and/or the gas backwashing valve 280 and the blowdown valve 290 are closed. At this time, the maintenance and cleaning process of the entire microfiltration unit is completed, the inlet valve 250 and the outlet valve 260 are closed, and the automatic operation state of the circulation pump 220 is recovered, so that the microfiltration cycle can be performed.
Example 3
The structure of this embodiment is similar to that of embodiment 2, and in order to facilitate maintenance and cleaning of the waste liquid purification unit, as shown in fig. 4, a first purification circulation valve is disposed on a pipeline connecting between the second water delivery valve 330 and the delivery pump 420, and is used for directly introducing the filtered waste liquid into the waste liquid purification unit; a second purification circulating valve is arranged on a pipeline communicated between the water storage tank 310 and the delivery pump 420, and is used for controlling the outflow of the waste liquid in the water storage tank 310 and guiding the waste liquid to the delivery pump 420.
The waste liquid purification unit 40 is provided with a washing water inlet valve 471, a washing water inlet and outlet, and a washing water circulation valve 472; the cleaning water tank 610 is connected to the transfer pump 420 according to the flow direction of the cleaning water, the cleaning water inlet valve 471 and the cleaning water inlet are sequentially connected, the cleaning water outlet is connected to the cleaning water tank 610, and the cleaning water circulation valve 472 is disposed on a pipeline connecting the cleaning water tank 610 and the transfer pump 420, so as to control the cleaning water to form a cleaning purification circulation loop in the pipeline.
In order to clean and maintain the electrodeionization device, all the water production valves and the drain valves and the water inlet of the electrodeionization device 410 need to be closed, the cleaning water inlet valve 471, the cleaning water inlet and the cleaning water outlet and the cleaning water circulating valve 472 need to be opened, the chemical in the cleaning water tank 610 is pumped into the electrodeionization device 410 through the delivery pump 420, wherein the chemical is acid or alkali, and the cleaning chemical is discharged through the drain port of the waste liquid purification unit after a period of cleaning.
For cleaning maintenance of the storage tank 310, the first and second water delivery valves 320 and 330 may be closed, and the water production valve and the drain valve may be opened to communicate the storage tank 310 to the cleaning purification cycle, and the storage tank 310 may be cleaned while the electrodeionization device is being cleaned.
The second storage device 50 is provided with a first water replenishing valve and a second water replenishing valve, which are respectively disposed between the external pure water storage device and the first pure water storage tank 510 and between the external pure water storage device and the second pure water storage tank 520, so as to replenish and balance the demand of pure water in the circulation loop. If pure water is needed to clean the waste liquid purification unit 40, the water backwashing valve 270, the first water delivery valve 320 and/or the second water delivery valve 330, the second purification circulating valve and/or the first purification circulating valve can be opened, or the first water replenishing valve and the second water replenishing valve can be opened at the same time; introducing the pure water in the external or second storage device 50 into the water storage tank 310 and then entering the electrodeionization device, or directly introducing the pure water into the electrodeionization device for cleaning; all water producing valves and discharge valves are closed, and the water enters a cleaning and purifying circulation loop to achieve the effect of pure water flushing.
In the device for recycling the scribing cutter cleaning cooling liquid provided by the invention, the first water replenishing valve and the second water replenishing valve of the second storage device 50 are electromagnetic valves, and other valves are pneumatic valves.
The embodiments of the present invention are merely illustrative, and not restrictive, of the scope of the claims, and other substantially equivalent alternatives may occur to those skilled in the art and are within the scope of the present invention.
Claims (10)
1. The device for recycling the cleaning cooling liquid of the scribing cutter is characterized by comprising a waste liquid collecting unit, a micro-filtration unit, a first water storage unit, a waste liquid purification unit and a second water storage unit, wherein the waste liquid collecting unit, the micro-filtration unit, the first water storage unit, the waste liquid purification unit and the second water storage unit are communicated in sequence through pipelines; the waste liquid purification unit comprises an electrodeionization device with a water inlet and a water outlet, the water outlet of the electrodeionization device comprises a concentrated water outlet and a pure water outlet, the pure water outlet is communicated to the second water storage unit through a pipeline, and the concentrated water outlet is communicated to the waste liquid collection unit and the first water storage unit through a pipeline respectively.
2. The device for recycling the cleaning coolant of the dicing blade of claim 1, wherein the waste liquid collecting unit comprises a waste liquid tank, and a lift pump, the lift pump is disposed in the waste liquid tank, and the lift pump pumps the waste liquid into the waste liquid tank after the liquid level in the waste liquid tank reaches a preset value.
3. The device for recycling the cleaning cooling liquid of the scribing knife according to claim 1, wherein the waste liquid collecting unit comprises a waste liquid pool and a waste liquid tank, the micro-filtration unit comprises a plurality of tubular micro-filtration devices, a circulating pump, a first circulating valve and a second circulating valve, wherein the plurality of tubular micro-filtration devices are arranged in parallel, and the waste liquid pool, the circulating pump, the first circulating valve, the plurality of tubular micro-filtration devices and the second circulating valve are sequentially communicated.
4. The device for recycling the cleaning cooling liquid of the scribing knife according to claim 3, wherein the micro-filtration unit further comprises a drug washing inlet valve and a drug washing outlet valve, wherein one side of the drug washing inlet valve is communicated with the chemical cleaning agent barrel, the other side of the drug washing inlet valve is communicated with the circulating pump, one side of the drug washing outlet valve is communicated with the second circulating valve, and the other side of the drug washing outlet valve is communicated back to the chemical cleaning agent barrel.
5. The device for recycling the cleaning cooling liquid of the scribing knife according to claim 3, wherein the micro-filtration unit further comprises a water backwashing valve, a gas backwashing valve and a blow-off valve, the water backwashing valve is arranged on a pipeline between the second water storage unit or the external pure water supplementing device and the plurality of tubular micro-filtration devices, the gas backwashing valve is arranged on a pipeline between the external gas storage device and the plurality of tubular micro-filtration devices, and the blow-off valve is arranged on a pipeline between the waste liquid pool and the plurality of tubular micro-filtration devices.
6. The device for recycling the cleaning cooling liquid of the scribing knife according to claim 1, wherein the first water storage unit comprises a water storage tank, a first water delivery valve and a second water delivery valve, the micro-filtration unit comprises a plurality of tubular micro-filtration devices, and the first water delivery valve is arranged on a pipeline between the plurality of tubular micro-filtration devices and the water storage tank so as to introduce the filtered waste liquid into the water storage tank; the waste liquid collecting unit comprises a waste liquid pool, and the second water conveying valve is arranged on a pipeline between the plurality of tubular microfiltration devices and the waste liquid pool.
7. The device for recycling the cleaning cooling liquid of the scribing knife according to claim 1, wherein the first water storage unit comprises a water storage tank, and the waste liquid purification unit comprises an electrodeionization device, a delivery pump, a liquid inlet valve, a water production valve and a discharge valve, wherein the water storage tank, the delivery pump, the liquid inlet valve and the electrodeionization device are sequentially communicated to deliver waste liquid into the electrodeionization device; the water producing valve is communicated with the pure water outlet to control pure water to be discharged to the second water storage unit; the waste liquid collecting unit comprises a waste liquid pool, and the discharge valve is communicated with the concentrated water outlet to control concentrated water to be discharged to the water storage tank or the waste liquid pool.
8. The device for recycling the cleaning coolant of the scribing knife according to claim 7, wherein the second water storage unit comprises a first pure water storage tank and a second pure water storage tank, the water production valve comprises a first pure water valve, a second pure water valve and a third pure water valve, the first pure water valve and the second pure water valve are respectively communicated to the first pure water storage tank and the second pure water storage tank through pipelines, and the third pure water valve is communicated to the water storage tank through pipelines.
9. The device for recycling the cleaning cooling liquid of the scribing blade as claimed in claim 7, wherein the discharge valve comprises a first concentrated water discharge valve and a second concentrated water discharge valve, wherein the first concentrated water discharge valve is disposed on the pipeline between the electrodeionization device and the waste liquid tank, and the second concentrated water discharge valve is disposed on the pipeline between the electrodeionization device and the water storage tank.
10. The device for recycling the cleaning cooling liquid of the scribing knife according to claim 7, wherein the waste liquid purifying unit further comprises an activated carbon filter, and the activated carbon filter is arranged on a pipeline communicating the liquid inlet valve and the electric deionization device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911337182.0A CN110937733A (en) | 2019-12-23 | 2019-12-23 | Dicing knife cleaning cooling liquid recycling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911337182.0A CN110937733A (en) | 2019-12-23 | 2019-12-23 | Dicing knife cleaning cooling liquid recycling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110937733A true CN110937733A (en) | 2020-03-31 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911337182.0A Pending CN110937733A (en) | 2019-12-23 | 2019-12-23 | Dicing knife cleaning cooling liquid recycling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110937733A (en) |
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2019
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