Tool cleaning fluid recycling device

Abstract

The application relates to the technical field of circulating filtering devices, in particular to a tool cleaning liquid recycling and circulating device which comprises a box body with an internal cavity and an open top and a cleaning machine, two first partition plates are arranged in the box body and divide the internal cavity into a shunt cavity, a filtering cavity and a confluence cavity, the filtering cavity is located between the shunt cavity and the confluence cavity, a plurality of ceramic membranes are arranged between the two first partition plates, one end of the ceramic membrane is communicated with the shunt cavity, the other end of the ceramic membrane is communicated with the confluence cavity, a liquid outlet pipe is communicated between the cleaning machine and the shunt cavity, the confluence cavity is communicated with a concentration evaporator, the filtering cavity is communicated with a circulating pump, a reflux pipe is communicated between the circulating pump and the cleaning machine, and the circulating pump and the concentration evaporator are both electrically connected to a control system. The application has the advantages of effectively removing oil particles, reducing the replacement frequency of cleaning agents and saving costs.

Description

Technical Field

[0001] This application relates to the field of circulating filtration devices, and in particular to a device for recycling and reusing tool cleaning fluid. Background Technology

[0002] Cutting fluid is an industrial liquid used in metal cutting and grinding processes to cool and lubricate cutting tools and workpieces. It is formulated with a variety of high-performance additives in a scientifically balanced manner, and possesses excellent cooling, lubrication, rust prevention, and degreasing / cleaning properties.

[0003] Cutting fluid is prone to contamination with oil particles during use, affecting its performance and lifespan. Currently, the common filtration method is to use filter screens or filter cartridges; however, both of these filtration structures have relatively large pore sizes, making it difficult to effectively remove nano-sized oil particles, leading to frequent replacement of the cleaning agent and increased costs. Summary of the Invention

[0004] To address the issue of frequent replacement of cleaning agents, this application provides a device for recycling and reusing tool cleaning fluid.

[0005] The tool cleaning fluid recycling device provided in this application adopts the following technical solution: A knife cleaning fluid recycling device includes a hollow, open-top box and a cleaning machine. The box contains two first partition plates that divide its interior into a diversion chamber, a filtration chamber, and a confluence chamber. The filtration chamber is located between the diversion chamber and the confluence chamber. Multiple ceramic membranes are inserted between the two first partition plates. One end of each ceramic membrane communicates with the diversion chamber, and the other end communicates with the confluence chamber. A liquid outlet pipe connects the cleaning machine to the diversion chamber. A concentrator / evaporator connects to the confluence chamber. A circulation pump connects the filtration chamber. A return pipe connects the circulation pump to the cleaning machine. Both the circulation pump and the concentrator / evaporator are electrically connected to a control system.

[0006] By adopting the above technical solution, the waste cleaning agent in the cleaning machine flows into the distribution chamber through the outlet pipe, and then is distributed to each ceramic membrane. As the waste cleaning agent flows through the pores of the ceramic membrane, the effective substances in the cleaning agent permeate from the ceramic membrane into the filtration chamber. Since oil particles are larger than the pores of the ceramic membrane, they can only be carried by the cleaning agent to the manifold chamber along the pores. The cleaning agent entering the manifold chamber, carrying the oil particles, enters the concentrator for concentration, while the pure cleaning agent in the filtration chamber flows back to the cleaning machine through the return pipe and circulation pump for cleaning. This application achieves efficient filtration of oil particles through ceramic membranes, reducing the frequency of cleaning agent replacement and saving costs.

[0007] Optionally, the housing is equipped with a cleaning mechanism, which includes an oil removal component for flushing out residual oil particles in the ceramic membrane and a drive component for driving the oil removal component to reciprocate along the length of the ceramic membrane. The oil removal component includes a hollow liquid inlet box arranged inside the housing. The liquid inlet box is slidably fitted onto multiple ceramic membranes. The liquid inlet box is equipped with multiple second partition plates that divide its inner cavity into multiple cleaning chambers. Each ceramic membrane corresponds to one cleaning chamber. The top of the liquid inlet box is equipped with a hollow diversion box. The bottom of the diversion box has multiple liquid inlet holes that communicate with each cleaning chamber. The diversion box is connected to a return pipe. The return pipe is equipped with a first solenoid valve, and the diversion pipe is equipped with a second solenoid valve.

[0008] By adopting the above technical solution, when the waste cleaning agent in the cleaning machine stops flowing into the diversion chamber, the control system closes the first solenoid valve and opens the second solenoid valve. In this way, the pure cleaning agent in the filtration chamber is drawn into the diversion pipe and then flows into the diversion box. The cleaning agent in the diversion box is diverted from each inlet hole to each cleaning chamber. In this way, the pure cleaning agent reverses from the outside and passes through the side wall of the ceramic membrane into its slot. At the same time, the drive component drives the oil removal component to reciprocate linearly. This allows the flow of pure cleaning agent to flush away the oil particles remaining in the ceramic membrane, reducing the possibility of residual oil particles mixing with other impurities and forming a dense pollution layer in the ceramic membrane slot, thereby improving the filtration performance of the ceramic membrane.

[0009] Optionally, a drain pipe is connected between the diversion chamber and the junction chamber, and a third solenoid valve is arranged on the drain pipe.

[0010] By adopting the above technical solution, during the oil particle removal process, some of the cleaning agent will carry oil particles and other impurities back into the distribution chamber and the manifold chamber, thereby opening the third solenoid valve. This allows the waste cleaning agent in the distribution chamber to directly enter the manifold chamber through the drain pipe, while the waste cleaning agent in the manifold chamber can flow into the concentrator evaporator. This reduces the possibility of the waste cleaning agent level in the distribution chamber and the manifold chamber rising and causing it to flow into the ceramic membrane.

[0011] Optionally, the top of the diversion box is also equipped with an air pump electrically connected to the control system and two hollow diversion air chambers. The two diversion air chambers are connected to the air outlet of the air pump by air outlet pipes, and a fourth solenoid valve is arranged on the air outlet pipes. Two hollow air outlet chambers are arranged on both sides of the corresponding ceramic membrane length direction in each cleaning chamber. The air outlet chambers are in close contact with the liquid inlet box and the ceramic membrane. The side of the air outlet chamber that is in close contact with the ceramic membrane is open. The air outlet chambers that are closer to the diversion chamber are connected to one diversion air chamber, and the remaining air outlet chambers are connected to the other diversion air chamber.

[0012] By adopting the above technical solution, before the pure cleaning agent is introduced into the cleaning chamber, the air pump is first started and the corresponding fourth solenoid valve is opened according to the movement direction of the liquid inlet box. The air pump introduces air into the corresponding diversion air chamber, and the air is diverted to the corresponding outlet air chamber. The air is sprayed out from the opening side of the outlet air chamber onto the ceramic membrane. The airflow blown out from the outlet air chamber at both sides of the ceramic membrane enters the slots of the ceramic membrane and forms a convection impact, thereby forming an air wall inside the ceramic membrane. When the pure cleaning agent is subsequently introduced, the cleaning agent has difficulty passing through the air wall, so that the pure cleaning agent can only flow in the same direction as the liquid inlet box, which is beneficial to improving the flushing effect of the cleaning agent on oil particles.

[0013] Optionally, the drive assembly includes a motor disposed on the top of the housing and electrically connected to the control system, a lead screw coaxially connected to the motor output shaft and parallel to the ceramic membrane, and the liquid inlet box is threadedly connected to the lead screw.

[0014] By adopting the above technical solution, the control system starts the motor, and the output shaft of the motor drives the lead screw to rotate in the forward and reverse directions. The lead screw drives the liquid inlet box to reciprocate linearly.

[0015] Optionally, proximity switches electrically connected to the control system are arranged at the rotating mounting points of the housing relative to both ends of the lead screw, and sensing blocks for being sensed by the proximity switches are arranged on the shunt box.

[0016] By adopting the above technical solution, the proximity switch and the sensing block work together to limit the extreme position of the reciprocating linear motion of the liquid inlet box, thereby reducing the possibility of the liquid inlet box colliding with the first partition plate.

[0017] Optionally, sponge blocks that are in close contact with the ceramic membrane are arranged on both sides of the outer wall of the liquid inlet box relative to the length direction of each ceramic membrane.

[0018] By adopting the above technical solution, part of the pure cleaning agent in the cleaning chamber flows into the ceramic membrane and flows along its length, while the other part of the cleaning agent is sprayed directly from the gap between the ceramic membrane and the liquid inlet box. Because the gap is small, the cleaning agent is sprayed out more forcefully, which can easily form water mist or be sprayed too far and lost. The sponge block can obstruct the sprayed cleaning agent and reduce the loss of cleaning agent.

[0019] In summary, this application includes at least one of the following beneficial technical effects: 1. Waste cleaning agent from the cleaning machine flows into the distribution chamber through the outlet pipe, and then is distributed to each ceramic membrane. As the waste cleaning agent flows through the pores of the ceramic membrane, the effective substances in the cleaning agent permeate from the ceramic membrane into the filtration chamber. Oil particles, however, are larger than the pores of the ceramic membrane and can only be carried by the cleaning agent to the manifold chamber along the pores. The cleaning agent entering the manifold chamber, carrying the oil particles, enters the concentrator for concentration. The pure cleaning agent in the filtration chamber then flows back into the cleaning machine through the return pipe and circulation pump for cleaning. This application achieves efficient filtration of oil particles using ceramic membranes, reducing the frequency of cleaning agent replacement and saving costs. 2. When the waste cleaning agent in the cleaning machine stops flowing into the distribution chamber, the control system closes the first solenoid valve and opens the second solenoid valve. In this way, the pure cleaning agent in the filtration chamber is drawn into the distribution pipe and then flows into the distribution box. The cleaning agent in the distribution box is distributed from each inlet hole to each cleaning chamber. In this way, the pure cleaning agent reverses from the outside and passes through the side wall of the ceramic membrane into its slot. At the same time, the drive component drives the oil removal component to reciprocate linearly. This allows the flow of pure cleaning agent to flush away the oil particles remaining in the ceramic membrane, reducing the possibility of residual oil particles mixing with other impurities and forming a dense fouling layer in the ceramic membrane slot, thereby improving the filtration performance of the ceramic membrane. 3. Before introducing the pure cleaning agent into the cleaning chamber, first start the air pump and open the corresponding fourth solenoid valve according to the movement direction of the liquid inlet box. The air pump introduces air into the corresponding diversion air chamber, and the air is diverted to the corresponding outlet air chamber. The air is sprayed out from the opening side of the outlet air chamber onto the ceramic membrane. The airflow blown out from the outlet air chamber on both sides of the ceramic membrane enters the slots of the ceramic membrane and forms a convection impact, thus forming an air wall inside the ceramic membrane. When the pure cleaning agent is introduced later, the cleaning agent has difficulty passing through the air wall, so that the pure cleaning agent can only flow in the same direction as the liquid inlet box, which is beneficial to improving the flushing effect of the cleaning agent on oil particles. Attached Figure Description

[0020] Figure 1 This is a structural schematic diagram of an embodiment of this application.

[0021] Figure 2 This is a cross-sectional view showing the positional relationship between the first partition plate, the drain pipe, and the third solenoid valve in an embodiment of this application.

[0022] Figure 3 This is a cross-sectional view showing the positional relationship between the air outlet chamber, the second partition plate, and the sponge block in an embodiment of this application.

[0023] Explanation of reference numerals in the attached drawings: 1. Housing; 3. First partition plate; 31. Diverting chamber; 32. Filtering chamber; 33. Manifold; 4. Ceramic membrane; 5. Discharge pipe; 7. Circulation pump; 8. Return pipe; 9. Inlet box; 10. Second partition plate; 101. Cleaning chamber; 11. Diverting box; 12. Diverting pipe; 13. First solenoid valve; 14. Second solenoid valve; 15. Drain pipe; 16. Third solenoid valve; 17. Air pump; 18. Diverting air chamber; 19. Air outlet pipe; 20. Fourth solenoid valve; 21. Air outlet chamber; 22. Motor; 23. Lead screw; 24. Proximity switch; 25. Sensing block; 26. Sponge block. Detailed Implementation

[0024] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.

[0025] This application discloses a device for recycling and reusing tool cleaning fluid.

[0026] Reference Figure 1 The tool cleaning fluid recycling device includes a cleaning machine (not shown in the figure) and a hollow box 1 with an open top. The cleaning machine is an ultrasonic cleaning machine in the prior art.

[0027] Reference Figure 1 Two first partition plates 3 are bolted inside the housing 1. The two first partition plates 3 work together to divide the inner cavity of the housing 1 into a diversion chamber 31, a filtration chamber 32, and a confluence chamber 33. The filtration chamber 32 is located between the diversion chamber 31 and the confluence chamber 33. A liquid outlet pipe 5 connects the cleaning machine to the diversion chamber 31.

[0028] The manifold 33 is connected to a concentrator evaporator (not shown in the figure), the filter chamber 32 is connected to a circulation pump 7, the circulation pump 7 and the cleaning machine are connected by a return pipe 8, and a first solenoid valve 13 is arranged on the return pipe 8. The concentrator evaporator, the circulation pump 7 and the first solenoid valve 13 are all electrically connected to the control system.

[0029] Reference Figure 1 Multiple parallel ceramic membranes 4 are fixedly inserted between the two first partition plates 3. Multiple slots are opened between the two ends of the ceramic membranes 4. One end of the ceramic membrane 4 is connected to the diversion cavity 31, and the other end is connected to the confluence cavity 33.

[0030] Reference Figure 1 The main components of the cleaning agent include aminoethanol, potassium hydroxide, nonionic surfactants, amphoteric surfactants, and anionic surfactants.

[0031] Aminoethanol is a small molecule organic compound with a molecular diameter in the nanometer range (10^-9 meters).

[0032] The diameter of potassium hydroxide ions is similar to that of water molecules, approximately 10^-10 meters, while the average particle size of nonionic surfactant nanoparticles can reach 4.7 nm.

[0033] The vesicle diameters formed by amphoteric surfactants range from 10 to 20 nm, while the average particle diameters of anionic surfactants are 3.8 nm and 2.3 nm, respectively.

[0034] The diameter of the oil particles ranges from 1 to 10 μm (0.000001-0.00001 m), while the pore size of the ceramic membrane 4 is approximately 20 nm.

[0035] Reference Figure 1 The cleaning agent waste liquid in the cleaning machine flows into the diversion chamber 31 through the outlet pipe 5, and then flows into each ceramic membrane 4. During the process of flowing through the ceramic membrane 4, the particle sizes of water molecules, aminoethanol, potassium hydroxide, nonionic surfactants, amphoteric surfactants and anionic surfactants can all pass through the side wall of the ceramic membrane 4 into the filter chamber 32, and the effective components of the cleaning agent are retained.

[0036] Reference Figure 1 Since the oil particles are larger than the membrane pore size, they can only enter the manifold 33 under the action of the cleaning agent. The cleaning agent carries the oil particles into the concentrator evaporator to achieve concentration, thereby saving subsequent processing costs.

[0037] Reference Figure 1 The circulation pump 7 and the first solenoid valve 13 are started, so that the pure cleaning agent in the filter chamber 32 is returned to the cleaning machine through the return pipe 8 for recycling, which reduces the frequency of cleaning agent replacement and saves costs.

[0038] In this application, the cleaning agent inside the cleaning machine needs to be filtered every 8 hours of operation, so as to reduce the possibility that oil particles will dissolve in the cleaning agent and become difficult to filter.

[0039] Reference Figure 1 The housing 1 is equipped with a cleaning mechanism, which includes an oil removal component for flushing out residual oil particles in the ceramic membrane 4 and a drive component for driving the oil removal component to reciprocate along the length of the ceramic membrane 4.

[0040] Reference Figure 1 , Figure 2 and Figure 3 The oil removal assembly includes a liquid inlet box 9 placed inside the housing 1 and having a hollow interior. The liquid inlet box 9 is slidably fitted onto multiple ceramic membranes 4 and is in close contact with the inner wall of the housing 1.

[0041] The liquid inlet box 9 has multiple second partition plates 10 integrally formed inside, which divide its internal cavity into multiple cleaning chambers 101. Each ceramic membrane 4 corresponds to a cleaning chamber 101.

[0042] Reference Figure 1 , Figure 2 and Figure 3 The top of the liquid inlet box 9 is welded with a hollow diversion box 11. The bottom of the diversion box 11 has multiple liquid inlet holes (not shown in the figure) for communicating with each cleaning chamber 101. A diversion pipe 12 is connected between the diversion box 11 and the return pipe 8. A second solenoid valve 14 electrically connected to the control system is arranged on the diversion pipe 12.

[0043] Reference Figure 1 , Figure 2 and Figure 3 The top of the diversion box 11 is also welded with an air pump 17 electrically connected to the control system and two hollow diversion air chambers 18. The two diversion air chambers 18 are respectively connected to the air outlet end of the air pump 17 by an air outlet pipe 19, and a fourth solenoid valve 20 is arranged on the air outlet pipe 19. The fourth solenoid valve 20 is electrically connected to the control system.

[0044] Reference Figure 1 , Figure 2 and Figure 3 Each cleaning chamber 101 has two hollow air outlet chambers 21 integrally formed on both sides of the ceramic membrane 4 along its length. The air outlet chambers 21 are in close contact with the liquid inlet box 9 and the ceramic membrane 4. A gap is left between the two air outlet chambers 21 on the same side of the ceramic membrane 4 for the cleaning agent to be sprayed out.

[0045] The outlet chamber 21 has an opening on one side that is close to the ceramic membrane 4. The outlet chambers 21 that are closer to the diversion chamber 31 are all connected to the same diversion chamber 18, and the remaining outlet chambers 21 are all connected to another diversion chamber 18.

[0046] Reference Figure 1 , Figure 2 and Figure 3 When the cleaning machine stops discharging cleaning agent waste liquid into the diversion chamber, the control system first starts the air pump 17, and at the same time opens the corresponding fourth solenoid valve 20 according to the movement direction of the liquid inlet box 9. The air pump 17 introduces air into the corresponding diversion air chamber 18, and the air is diverted to each air outlet chamber 21 near the diversion cavity 31, and then sprayed from the opening side of the air outlet chamber 21 into the ceramic membrane 4.

[0047] The airflow ejected from the air outlet chamber 21 at both sides along the length of the ceramic membrane 4 convects and impacts within the ceramic membrane 4, thereby forming an invisible air wall.

[0048] Reference Figure 1 , Figure 2 and Figure 3Then the control system closes the first solenoid valve 13 and opens the second solenoid valve 14. The pure cleaning agent in the filter chamber 32 is sent into the diversion pipe 12 by the circulation pump 7, then flows into the diversion box 11, and then is diverted to each cleaning chamber 101. Finally, it flows from the cleaning chamber 101 into the ceramic membrane 4.

[0049] Reference Figure 1 , Figure 2 and Figure 3 Due to the presence of the aforementioned air wall, the cleaning agent flowing back into the ceramic membrane 4 has difficulty passing through the air wall. Therefore, the cleaning agent can only flow in the same direction as the liquid inlet box 9. In conjunction with the drive component, the oil removal component moves in a straight line. In this way, the cleaning agent can flush out the oil particles remaining in the slots of the ceramic membrane 4 into the manifold 33.

[0050] When the liquid inlet box 9 moves in the reverse direction, the remaining air outlet chamber 21 is replaced, so that the residual oil particles can be flushed back into the diversion chamber 31.

[0051] By using the above methods, residual oil particles and other impurities in the pores of ceramic membrane 4 can be removed, reducing the possibility of oil particles and other impurities forming a dense fouling layer, improving the filtration performance of ceramic membrane 4, and extending its service life.

[0052] Reference Figure 1 , Figure 2 and Figure 3 A drain pipe 15 connects the distribution chamber 31 and the manifold chamber 33. The drain pipe 15 is located outside the housing 1, and a third solenoid valve 16 electrically connected to the control system is arranged on the drain pipe 15. When the third solenoid valve 16 is opened, the cleaning agent waste liquid flows into the manifold chamber through the drain pipe 15 and then into the evaporator, reducing the possibility that the cleaning agent waste liquid level in the distribution chamber 31 and the manifold chamber 33 will rise and re-flow into the ceramic membrane 4.

[0053] Reference Figure 1 , Figure 2 and Figure 3 The drive assembly includes a motor 22 bolted to the top of the housing 1 and electrically connected to the control system, a lead screw 23 coaxially connected to the output shaft of the motor 22 and parallel to the ceramic membrane 4, and an inlet box 9 threadedly connected to the lead screw 23. When the control system starts the motor 22, the output shaft of the motor 22 drives the lead screw 23 to rotate in both directions, and the lead screw 23 drives the inlet box 9 to reciprocate linearly.

[0054] Reference Figure 2 The rotating brackets at both ends of the housing 1 relative to the lead screw 23 are threaded with proximity switches 24 that are electrically connected to the control system. The shunt box 11 is embedded with a sensing block 25 for being sensed by the proximity switch 24.

[0055] Reference Figure 3On both sides of the outer wall of the liquid inlet box 9, opposite to each ceramic membrane 4 along its length, there are sponge blocks 26 that are in close contact with the ceramic membrane 4. Some of the cleaning agent will be sprayed directly from the gap between the ceramic membrane 4 and the liquid inlet box 9. Because the gap is small, the cleaning agent is sprayed out with great force, which can easily form water mist or be sprayed too far and lost. The sponge blocks 26 can obstruct the sprayed cleaning agent and reduce the loss of cleaning agent.

[0056] The implementation principle of the tool cleaning fluid recycling device in this application is as follows: The waste cleaning agent in the cleaning machine flows into the distribution chamber 31 through the outlet pipe 5, and then is distributed to each ceramic membrane 4. During the process of flowing through the ceramic membrane 4, the particle sizes of water molecules, aminoethanol, potassium hydroxide, nonionic surfactants, amphoteric surfactants and anionic surfactants can all pass through the side wall of the ceramic membrane 4 into the filter chamber 32, and the effective components of the cleaning agent are retained.

[0057] Start the circulation pump 7 and the first solenoid valve 13, so that the pure cleaning agent in the filter chamber 32 can be recycled back into the cleaning machine through the return pipe 8.

[0058] When the cleaning machine stops discharging cleaning agent waste liquid into the diversion chamber 31, the control system first starts the air pump 17, and simultaneously opens the corresponding fourth solenoid valve 20 according to the movement direction of the liquid inlet box 9. The air pump 17 introduces air into the corresponding diversion air chamber 18, and the air is diverted to each air outlet chamber 21 near the diversion chamber 31, and then sprayed out from the opening side of the air outlet chamber 21 into the ceramic membrane 4. The airflows sprayed from the air outlet chambers 21 on both sides of the ceramic membrane 4 along its length collide and convect within the ceramic membrane 4, thus forming an invisible air wall.

[0059] Then the control system closes the first solenoid valve 13 and opens the second solenoid valve 14. The pure cleaning agent in the filter chamber 32 is sent into the diversion pipe 12 by the circulation pump 7, then flows into the diversion box 11, and then is diverted to each cleaning chamber 101. Finally, it flows from the cleaning chamber 101 into the ceramic membrane 4.

[0060] Due to the presence of the aforementioned air wall, the cleaning agent flowing back into the ceramic membrane 4 cannot pass through the air wall. Therefore, the cleaning agent can only flow in the same direction as the liquid inlet box 9, and in conjunction with the drive assembly, it drives the oil removal assembly to move linearly. In this way, the cleaning agent can flush out the oil particles remaining in the slots of the ceramic membrane 4 into the manifold 33. When the liquid inlet box 9 moves in the opposite direction, the other air outlet chambers 21 are replaced, so that the remaining oil particles can be flushed back into the diversion chamber 31.

[0061] By using the above methods, residual oil particles and other impurities in the pores of ceramic membrane 4 can be removed, reducing the possibility of oil particles and other impurities forming a dense fouling layer, improving the filtration performance of ceramic membrane 4, and extending its service life.

[0062] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A device for recycling and reusing tool cleaning fluid, characterized in that: The system includes a hollow, open-top box (1) and a cleaning machine. The box (1) has two first partition plates (3) that divide its interior into a flow distribution chamber (31), a filter chamber (32), and a flow collection chamber (33). The filter chamber (32) is located between the flow distribution chamber (31) and the flow collection chamber (33). Multiple ceramic membranes (4) are inserted between the two first partition plates (3). One end of each ceramic membrane (4) is connected to the flow distribution chamber (31), and the other end is connected to the flow collection chamber (33). The cleaning machine is connected to the flow distribution chamber (31) by a liquid outlet pipe (5). The flow collection chamber (33) is connected to a concentrator evaporator. The filter chamber (32) is connected to a circulation pump (7). The circulation pump (7) is connected to the cleaning machine by a return pipe (8). The circulation pump (7) and the concentrator evaporator are both electrically connected to the control system. A cleaning mechanism is arranged on the housing (1). The cleaning mechanism includes an oil removal component for flushing out residual oil particles in the ceramic membrane (4) and a driving component for driving the oil removal component to reciprocate along the length of the ceramic membrane (4). The oil removal component includes a liquid inlet box (9) arranged inside the housing (1) and hollow inside. The liquid inlet box (9) is slidably sleeved on multiple ceramic membranes (4). Multiple second cleaning chambers (101) are arranged inside the liquid inlet box (9) to divide its inner cavity into multiple cleaning chambers (101). The partition plate (10) has a cleaning chamber (101) corresponding to each ceramic membrane (4). The top of the liquid inlet box (9) is provided with a hollow diversion box (11). The bottom of the diversion box (11) has multiple liquid inlet holes for communicating with each cleaning chamber (101). The diversion box (11) is connected to the return pipe (8) by a diversion pipe (12). The return pipe (8) is provided with a first solenoid valve (13), and the diversion pipe (12) is provided with a second solenoid valve (14). The top of the diversion box (11) is also provided with an air pump (17) electrically connected to the control system and two hollow diversion air chambers (18). The two diversion air chambers (18) and the air outlet of the air pump (17) are respectively connected by an air outlet pipe (19), and a fourth solenoid valve (20) is arranged on the air outlet pipe (19). In each cleaning chamber (101), two hollow air outlet chambers (21) are arranged on both sides of the corresponding ceramic membrane (4) along the length direction. The air outlet chamber (21) is in close contact with the liquid inlet box (9) and the air outlet chamber (21) is in close contact with the ceramic membrane (4). The side of the air outlet chamber (21) in close contact with the ceramic membrane (4) is open. The air outlet chamber (21) closer to the diversion chamber (31) is connected to one diversion air chamber (18), and the remaining air outlet chambers (21) are connected to the other diversion air chamber (18). When the cleaning machine stops discharging cleaning agent waste liquid into the diversion chamber (31), the control system first starts the air pump (17) and opens the corresponding fourth solenoid valve (20) according to the movement direction of the liquid inlet box (9); then the control system closes the first solenoid valve (13) and opens the second solenoid valve (14).

2. The tool cleaning fluid recycling device according to claim 1, characterized in that: A drain pipe (15) is connected between the diversion chamber (31) and the junction chamber (33), and a third solenoid valve (16) is arranged on the drain pipe (15).

3. The tool cleaning fluid recycling device according to claim 1, characterized in that: The drive assembly includes a motor (22) arranged on the top of the housing (1) and electrically connected to the control system, a lead screw (23) coaxially connected to the output shaft of the motor (22) and parallel to the ceramic membrane (4), and the liquid inlet box (9) is threaded to the lead screw (23).

4. The tool cleaning fluid recycling device according to claim 1, characterized in that: The housing (1) is equipped with proximity switches (24) electrically connected to the control system at both ends of the rotating frame relative to the lead screw (23), and the shunt box (11) is equipped with sensing blocks (25) for being sensed by the proximity switches (24).

5. The tool cleaning fluid recycling device according to claim 1, characterized in that: On both sides of the outer wall of the liquid inlet box (9) relative to the length direction of each ceramic membrane (4), there are sponge blocks (26) that are in close contact with the ceramic membrane (4).

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