A cutting wastewater treatment and recovery device

Abstract

This invention relates to the technical field of wastewater treatment, and in particular to a cutting wastewater treatment and recovery device, including an oil-water separator and a cover; it also includes a solid-liquid separation mechanism. A lower partition is horizontally installed at the bottom of the separation chamber of the oil-water separator, and a vertical partition is slidably installed in the separation chamber of the oil-water separator. The left and right side walls of the vertical partition are slidably connected to the inner wall of the oil-water separator. A return channel for wastewater to pass through is provided between the lower part of the vertical partition and the lower partition. A drive assembly is installed on the oil-water separator to drive the vertical partition to move. An oil drain pipe and a drain pipe are installed on the side wall of the oil-water separator. The input end of the oil drain pipe extends into the upper front part of the separation chamber of the oil-water separator, and the input end of the drain pipe extends into the lower rear part of the separation chamber of the oil-water separator. It uses a vertical partition to push the floating oil and wastewater to separate, making the operation simpler, the ability to separate floating oil stable, and improving the oil-water separation efficiency.

Description

Technical Field

[0001] This invention relates to the technical field of wastewater treatment, and in particular to a cutting wastewater treatment and recycling device. Background Technology

[0002] When CNC machine tools and other equipment are working, a large amount of cutting fluid is needed to cool and lubricate the workpiece and cutting tools, which generates a large amount of cutting wastewater. Under working conditions, the cutting wastewater carries the chips and oil produced during processing. The chips, due to their higher density, naturally settle to the bottom of the tank, while the oil, due to its lower density, floats on the surface of the cutting fluid, forming a double pollution state of "bottom chips and top oil".

[0003] Chinese invention patent application CN121342152A discloses a high-efficiency purification and circulation device for CNC machine tool cutting fluid. This device includes a wastewater tank comprising a collection box containing a chip plate and an oil separator, dividing the collection box into a recovery chamber, an oil-water chamber, and a chip chamber. A conveyor chain is installed in the recovery chamber, with both ends curving upwards and extending to the upper spaces of the oil-water chamber and the chip chamber, respectively. In this high-efficiency purification and circulation device, a cleaning cloth moves with the conveyor chain within the recovery chamber. As the cleaning cloth moves, it carries chips from the bottom of the recovery chamber into the chip chamber and sends oil into the oil-water chamber, keeping the waste fluid in the recovery chamber relatively clean and reducing bacterial growth. Simultaneously, oil is stored in the oil-water chamber and chips in the chip chamber, eliminating the need to move the wastewater tank during cleaning and ensuring the recovery of waste fluid in the recovery chamber is not affected. The recovery of chips and waste oil is relatively simple and does not impact production.

[0004] The above-mentioned cutting wastewater treatment device uses a cleaning cloth to absorb the floating oil and then squeezes the cleaning cloth to squeeze out the floating oil. The oil-water separation operation is relatively complicated, and the oil absorption capacity of the cleaning cloth decreases after it is full of wastewater, resulting in low oil-water separation efficiency. Summary of the Invention

[0005] To solve the above-mentioned technical problems, the present invention provides a cutting wastewater treatment and recycling device that uses vertical baffles to promote the separation of floating oil and wastewater, which is simpler to operate, has a stable ability to separate floating oil, and improves the oil-water separation efficiency.

[0006] This invention discloses a cutting wastewater treatment and recycling device, comprising an oil-water separator, an internal separation chamber, an opening on the upper surface of the oil-water separator, and a cover installed on the opening; it also includes a solid-liquid separation mechanism for separating debris and wastewater, and inputting the wastewater into the front of the separation chamber of the oil-water separator; a lower partition is horizontally installed at the bottom of the separation chamber of the oil-water separator, and a vertical partition is slidably installed back and forth in the separation chamber of the oil-water separator; the vertical partition is positioned left and right... The sidewall is slidably connected to the inner wall of the oil-water separator. A return channel for wastewater is provided between the lower part of the vertical partition and the lower partition. A drive assembly is installed on the oil-water separator to drive the vertical partition to move. An oil drain pipe and a drain pipe are installed on the sidewall of the oil-water separator. The input end of the oil drain pipe extends into the upper front part of the separation chamber of the oil-water separator, and the input end of the drain pipe extends into the lower rear part of the separation chamber of the oil-water separator. The vertical partition divides the separation chamber of the oil-water separator into a front and a rear section. At this time, the drive assembly drives the vertical partition to move to the rear end of the separation chamber of the oil-water separator. The cutting wastewater generated by the CNC machine tool is input into the solid-liquid separation mechanism for solid-liquid separation, so that the chips in the cutting wastewater are separated. The oily wastewater is input to the front of the separation chamber of the oil-water separator. When the input wastewater reaches the set liquid level, the input of cutting wastewater is stopped, allowing the cutting wastewater in the separation chamber of the oil-water separator to settle. During the settling process, the waste oil gradually gathers to the upper layer of the cutting wastewater. The drive assembly drives the vertical partition to move forward, so that the upper part of the vertical partition pushes the floating oil forward, thereby making the floating oil gather into a floating oil zone with a certain depth. The wastewater in the front flows to the rear of the separation chamber of the oil-water separator through the return channel. The valve of the oil drain pipe is opened to discharge the floating oil in the floating oil zone, and the valve of the drain pipe is opened to discharge the remaining usable cutting fluid for reuse. Compared with the existing technology, the vertical partition oil pushing operation is simpler, and the ability to separate floating oil is stable and will not decrease, thus improving the oil-water separation efficiency.

[0007] Preferably, a filter cloth is also installed on the return channel.

[0008] Preferably, the drive assembly includes two slide rails horizontally mounted on the oil-water separator, the two slide rails being arranged along the front-rear direction of the oil-water separator, the two slide rails being slidably connected to the upper slider of the vertical partition, two motors being mounted on the left and right ends of the vertical partition, two gears being concentrically mounted on the output shafts of the two motors respectively, and two racks being mounted on the left and right side walls of the oil-water separator respectively, the two gears meshing with the two racks respectively.

[0009] Preferably, the vertical partition also includes an inclined plate in the middle, with the portion of the vertical partition above the inclined plate located on the rear side of the return channel.

[0010] Preferably, the lower partition plate is provided with multiple aeration holes, the aerator is located outside the oil-water separator, the air outlet of the aerator is connected to the input end of the air supply pipe, the output end of the air supply pipe extends into the bottom of the separation chamber of the oil-water separator, and the output end of the air supply pipe is located below the lower partition plate.

[0011] Preferably, the method further includes multiple conical hoods installed on the lower end faces of multiple lower partitions, the upper ports of the multiple conical hoods being connected to the lower ends of multiple aeration holes of the lower partitions, multiple ventilation holes being provided on the lower side walls of the multiple conical hoods, guide holes being provided on the bottom of the multiple conical hoods, multiple vertical rods being slidably inserted into the guide holes of the multiple conical hoods, pistons being installed on the upper ends of the multiple vertical rods, the side walls of the multiple pistons contacting the lower inner walls of the multiple conical hoods, and the multiple pistons closing or opening the ventilation holes of the multiple conical hoods respectively.

[0012] Preferably, the solid-liquid separation mechanism includes a pump body, a filter tank is provided at the center of the upper end face of the pump body, a centrifuge chamber is provided inside the pump body, an inlet is provided at the bottom of the filter tank and communicates with the center of the centrifuge chamber, the filter is detachably installed in the filter tank, a second motor is installed at the bottom of the pump body, a centrifuge impeller is rotatably installed at the bottom center of the centrifuge chamber of the pump body, the output shaft of the second motor is connected to the centrifuge impeller, the input end of the liquid delivery pipe communicates with the centrifuge chamber of the pump body, and the output end of the liquid delivery pipe extends into the front of the separation chamber of the oil-water separator.

[0013] Preferably, the filter has a multi-layered structure, with the filter holes gradually decreasing in size from the inside to the outside, thus achieving multi-stage filtration.

[0014] Preferably, the centrifugal chamber of the pump body has a V-shaped cross-section, an annular baffle is installed on the top of the centrifugal chamber of the pump body, the inlet end of the liquid delivery pipe is connected to the top of the pump body and the inlet end of the liquid delivery pipe is located inside the annular baffle, the inlet end of the slag discharge pipe is connected to the upper part of the centrifugal chamber of the pump body and the inlet end of the slag discharge pipe is located outside the annular baffle.

[0015] Preferably, the inlet of the residual gas pipe passes through the cover and is located above the opening of the oil-water separator, while the outlet of the residual gas pipe extends into the filter.

[0016] Compared with the prior art, the beneficial effects of the present invention are: the vertical baffle oil pushing operation is simpler, and the ability to separate floating oil is stable and will not decrease, thereby improving the oil-water separation efficiency. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the front section structure of the present invention; Figure 2 This is a partial cross-sectional structural schematic diagram of the present invention; Figure 3 This is a schematic diagram of the isometric structure of the present invention; Figure 4It is a structural diagram of the oil-water separator, including the tank cover, lower partition, vertical partition, oil drain pipe, drain pipe, aerator, and air supply pipe. Figure 5 It is a structural diagram of the lower partition, slide rail, rack, motor and gears, etc. Figure 6 It is a structural diagram of components such as vertical partitions, return channels, motors, gears, inclined plates, and filter cloth; Figure 7 yes Figure 1 A magnified schematic diagram of the partial structure at point A in the middle; Figure 8 It is a structural diagram showing the exploded state of the conical cover, vertical rod, and piston, etc. Figure 9 This is a partial cross-sectional view of the solid-liquid separation mechanism. Figure 10 It is a front cross-sectional structural diagram of the pump body, filter tank, filter, liquid delivery pipe, motor, centrifugal impeller, annular baffle, slag discharge pipe and residual gas pipe.

[0018] The following are labels in the attached diagram: 1. Oil-water separator; 2. Separator cover; 3. Lower partition; 4. Vertical partition; 5. Return channel; 6. Oil drain pipe; 7. Drain pipe; 8. Slide rail; 9. Rack; 10. Motor; 11. Gear; 12. Inclined plate; 13. Aerator; 14. Air supply pipe; 15. Conical hood; 16. Vertical rod; 17. Piston; 18. Filter cloth; 19. Pump body; 20. Filter tank; 21. Filter; 22. Liquid supply pipe; 23. Motor II; 24. Centrifugal impeller; 25. Annular partition; 26. Slag discharge pipe; 27. Excess gas pipe. Detailed Implementation

[0019] To facilitate understanding of the present invention, a more complete description will be given below with reference to the accompanying drawings. The present invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

[0020] Example 1, such as Figures 1 to 6As shown, a cutting wastewater treatment and recovery device includes an oil-water separator 1, with a separation chamber inside the separator 1. An opening is provided on the upper surface of the separator 1, and a cover 2 is installed on the opening. It also includes a solid-liquid separation mechanism for separating debris and wastewater and inputting the wastewater to the front of the separation chamber of the oil-water separator 1. A lower partition 3 is horizontally installed at the bottom of the separation chamber of the oil-water separator 1. A vertical partition 4 is slidably installed in the separation chamber of the oil-water separator 1, with its left and right sidewalls slidably connected to the inner wall of the separator 1. A return channel 5 for wastewater to pass through is provided between the lower part of the vertical partition 4 and the lower partition 3. A drive assembly is installed on the oil-water separator 1 to drive the vertical partition 4 to move. An oil drain pipe 6 and a water drain pipe 7 are installed on the sidewall of the oil-water separator 1. The input end of the oil drain pipe 6 extends into the upper front part of the separation chamber of the oil-water separator 1, and the input end of the drain pipe 7 extends into the lower rear part of the separation chamber of the oil-water separator 1; it also includes a filter cloth 18 installed on the return channel 5; the drive assembly includes two slide rails 8 horizontally installed on the oil-water separator 1, and the two slide rails 8 are arranged along the front and rear direction of the oil-water separator 1. The two slide rails 8 are slidably connected to the upper slider of the vertical partition 4. Two motors 10 are installed on the left and right ends of the vertical partition 4, and two gears 11 are concentrically installed on the output shafts of the two motors 10 respectively. Two racks 9 are respectively installed on the left and right side walls of the oil-water separator 1, and the two gears 11 mesh with the two racks 9 respectively; it also includes an inclined plate 12 set in the middle of the vertical partition 4, and the part of the vertical partition 4 above the inclined plate 12 is located on the rear side of the return channel 5.

[0021] It is important to understand that the vertical partition 4 divides the separation chamber of the oil-water separator 1 into a front and a rear section. The two motors 10 are controlled by the same controller to run synchronously. The two motors 10 synchronously drive the two gears 11 to rotate. The two gears 11 mesh with the two racks 9 respectively to drive the vertical partition 4 to move back and forth along the two slide rails 8. The driving effect is stable, the structure is simplified, and the driving stroke is large. By setting the inclined plate 12, when the vertical partition 4 reaches the front end of the separation chamber of the oil-water separator 1, the lower part of the vertical partition 4 contacts the front inner wall of the oil-water separator 1, while the upper part of the vertical partition 4 forms a V-shaped floating oil zone between the upper part of the vertical partition 4 and the front inner wall of the separation chamber of the oil-water separator 1. This makes the floating oil more concentrated and convenient for efficient discharge through the oil drain pipe 6.

[0022] As an alternative, the drive assembly can be replaced with a lead screw and nut mechanism or a cylinder drive to achieve different power sources. In addition, for exposed moving parts such as the sliding contact surface between the slide rail 8 and the vertical partition 4, and the meshing point between the gear 11 and the rack 9, this embodiment has a dustproof end cap at the end of the slide rail 8 and a protective cover on the outside of the gear 11 and the rack 9 to prevent oil and debris from entering. The sliding contact surfaces between relatively moving parts such as the vertical partition 4 and the inner wall of the oil-water separator 1 are filled with corrosion-resistant grease to reduce wear. High-wear parts such as the filter cloth 18 are installed with a detachable snap-fit ​​type for easy cleaning or replacement. During long-term operation, the heat generated by the motor 10 is dissipated through the heat dissipation fins of the oil-water separator 1. Electrical components such as the controller of the motor 10 and the control unit of the aerator 13 (see Embodiment 2) are encapsulated in a waterproof and dustproof electrical box with a protection level of not less than IP55 to adapt to the humid environment of the cutting fluid treatment workshop.

[0023] During operation, the drive assembly moves the vertical partition 4 to the rear end of the separation chamber of the oil-water separator 1. The cutting wastewater generated by the CNC machine tool is input into the solid-liquid separation mechanism for solid-liquid separation, causing the chips in the cutting wastewater to be separated. The oily wastewater is input to the front of the separation chamber of the oil-water separator 1. When the input wastewater reaches the set liquid level, the input of cutting wastewater is paused, allowing the cutting wastewater in the separation chamber of the oil-water separator 1 to settle. During the settling process, the waste oil gradually accumulates on the upper layer of the cutting wastewater. The drive assembly then moves the vertical partition 4 forward, causing the vertical partition 4 to... The upper part pushes the floating oil forward, causing it to accumulate into a floating oil zone of a certain depth. Meanwhile, the wastewater in the front flows through the filter cloth 18 on the return channel 5 to the rear of the separation chamber of the oil-water separator 1. When the vertical partition 4 moves forward, the wastewater can flow to the rear through the filter cloth 18, and the floating oil droplets in the wastewater are intercepted by the filter cloth 18, thus making the floating oil more efficiently accumulate in the floating oil zone in front of the vertical partition 4. The valve of the drain pipe 6 is opened to discharge the floating oil in the floating oil zone, and the valve of the drain pipe 7 is opened to discharge the remaining usable cutting fluid for reuse.

[0024] Compared with the prior art, the beneficial effects of this embodiment are as follows: the use of vertical baffles to promote the separation of floating oil and wastewater makes the operation simpler and the ability to separate floating oil remains stable without decreasing, significantly improving the oil-water separation efficiency; the inclined plate design causes the floating oil to form a V-shaped aggregation area during the pushing process, which facilitates centralized discharge; the filter cloth intercepts floating oil droplets, further enhancing the separation effect; the design of dustproof end caps, protective covers, corrosion-resistant grease, and replaceable filter cloth comprehensively improves the reliability and durability of the device in the cutting fluid treatment environment.

[0025] Example 2, as Figure 1 , Figure 2 , Figure 4 , Figure 5 , Figure 7 and Figure 8As shown, based on Embodiment 1, multiple aeration holes are provided on the lower partition 3. The aerator 13 is located outside the oil-water separator 1. The air outlet of the aerator 13 is connected to the input end of the air supply pipe 14, and the output end of the air supply pipe 14 extends into the bottom of the separation chamber of the oil-water separator 1. The output end of the air supply pipe 14 is located below the lower partition 3. Furthermore, multiple conical covers 15 are installed on the lower end face of the multiple lower partitions 3. The upper ports of the multiple conical covers 15 are respectively connected to the lower ends of the multiple aeration holes of the lower partition 3. Multiple ventilation holes are provided on the lower side walls of the multiple conical covers 15, and guide holes are provided on the bottom of the multiple conical covers 15. Multiple vertical rods 16 are slidably inserted into the guide holes of the multiple conical covers 15. Pistons 17 are installed on the upper ends of the multiple vertical rods 16. The side walls of the multiple pistons 17 are respectively in contact with the lower inner walls of the multiple conical covers 15. The multiple pistons 17 respectively close or open the ventilation holes of the multiple conical covers 15.

[0026] It should be understood that the aerator 13 is preferably an ozone generator. When the cutting wastewater is input into the separation chamber of the oil-water separator 1, the aerator 13 operates to generate ozone. The ozone is input into the bottom of the separation chamber of the oil-water separator 1 through the air supply pipe 14, and the ozone forms microbubbles through multiple aeration holes of the lower baffle 3, which are evenly distributed in the separation chamber of the oil-water separator 1. During the process of the ozone microbubbles rising, they combine with floating oil droplets and light micro-debris in the wastewater to form clumps. The clumps float on the surface of the wastewater, saving settling time, so that the vertical baffle 4 can separate floating oil and wastewater more efficiently. At the same time, the ozone sterilizes and disinfects the cutting wastewater. When the aerator 13... When the aerator 13 is running, ozone is filled into the space below the lower partition 3. When the ozone pressure increases, it pushes the pistons 17 upward through the multiple vents, thereby opening the vents of the multiple conical hoods 15. At this time, the ozone is aerated above the lower partition 3 through the gap between the pistons 17 and the conical hoods 15. When the aerator 13 is not working, the wastewater pressure in the separation chamber of the oil-water separator 1 presses the pistons 17 against the bottom of the conical hoods 15, thereby closing the vents of the conical hoods 15. This reduces the amount of cutting wastewater flowing into the lower partition 3, making it easier to maintain the equipment at the bottom of the lower partition 3.

[0027] As an alternative, the aerator 13 can be replaced by an air pump or an oxygen source to meet different oxidation requirements; the mating structure between the conical shroud 15 and the piston 17 can adopt a spring return or magnetic seal to improve reliability; in addition, the air supply pipe 14 is exposed to the outside, and in this embodiment, a heat insulation layer is provided on its outer side to prevent the high temperature environment from affecting the gas pipeline; the sliding mating surface between the piston 17 and the conical shroud 15 is coated with corrosion-resistant grease to ensure smooth operation.

[0028] Compared with the prior art, the beneficial effects of this embodiment are as follows: the microbubbles generated by aeration combine with floating oil and light debris to form clumps, which accelerates the floating oil's rise and shortens the settling time, further improving the oil-water separation efficiency; ozone sterilizes and disinfects the wastewater, enhancing its reuse value; the automatic sealing structure of the piston and conical hood effectively prevents wastewater backflow after aeration stops, protecting the pipes and equipment below the lower baffle and facilitating maintenance.

[0029] Example 3, as Figure 1 , Figure 2 , Figure 9 and Figure 10 As shown, based on Embodiment 2, the solid-liquid separation mechanism includes a pump body 19, a filter tank 20 is provided in the center of the upper end face of the pump body 19, a centrifuge chamber is provided inside the pump body 19, an inlet communicating with the center of the centrifuge chamber is provided at the bottom of the filter tank 20, a filter 21 is detachably installed in the filter tank 20, a motor 23 is installed at the bottom of the pump body 19, a centrifuge impeller 24 is rotatably installed at the bottom center of the centrifuge chamber of the pump body 19, the output shaft of the motor 23 is connected to the centrifuge impeller 24, the input end of the liquid delivery pipe 22 is connected to the centrifuge chamber of the pump body 19 and the output end of the liquid delivery pipe 22 extends into the front of the separation chamber of the oil-water separator 1.

[0030] Furthermore, the filter 21 has a multi-layered structure with the filter holes gradually decreasing in size from the inside to the outside, thus achieving multi-stage filtration.

[0031] Furthermore, the centrifugal chamber of the pump body 19 has a V-shaped cross-section, and an annular baffle 25 is installed on the top of the centrifugal chamber of the pump body 19. The input end of the liquid delivery pipe 22 is connected to the top of the pump body 19 and the input end of the liquid delivery pipe 22 is located inside the annular baffle 25. The input end of the slag discharge pipe 26 is connected to the upper part of the centrifugal chamber of the pump body 19 and the input end of the slag discharge pipe 26 is located outside the annular baffle 25.

[0032] Furthermore, the inlet end of the residual gas pipe 27 passes through the cover 2 and is located above the opening of the oil-water separator 1, while the outlet end of the residual gas pipe 27 extends into the filter 21.

[0033] It is important to understand that the cutting wastewater generated by the CNC machine tool is input into the filter 21. The filter 21 intercepts and filters large solid particles to achieve preliminary solid-liquid separation. The filtered wastewater enters the centrifuge chamber through the inlet of the pump body 19. The motor 23 drives the centrifuge impeller 24 to rotate, causing the wastewater in the centrifuge chamber of the pump body 19 to rotate and accelerate centrifugation, and rise along the inner wall of the outer side of the centrifuge chamber of the pump body 19. During the rise of the wastewater, heavy debris and other solid particles in the wastewater gradually gather on the outside and are separated by the annular baffle 25 and discharged through the slag discharge pipe 26. The wastewater located on the inner side is separated by the annular baffle 25 and is transported to the separation chamber of the oil-water separator 1 through the liquid delivery pipe 22, thereby achieving centrifugal separation and improving the solid-liquid separation efficiency.

[0034] The residual ozone that accumulates inside the cover 2 is introduced into the filter 21 through the residual gas pipe 27 and premixed with the cutting wastewater in the filter 21, thereby sterilizing the cutting wastewater and debris with ozone.

[0035] As an alternative, filter 21 can be replaced with a spiral separator or hydrocyclone to meet different solid-liquid separation requirements; motor 23 can be replaced with a variable frequency motor to adjust the centrifugal speed.

[0036] Compared with the prior art, the beneficial effects of this embodiment are as follows: the multi-stage filtration of the filter and the centrifugal separation of the centrifugal impeller realize two-stage solid-liquid separation, significantly improving the solid-liquid separation efficiency and ensuring that the wastewater entering the oil-water separation tank has a low slag content; the annular baffle effectively separates heavy debris and light wastewater, preventing debris from entering the liquid delivery pipe and causing blockage; the residual gas pipe recovers ozone and reuses it in the filter, which not only realizes the reuse of residual ozone, but also pre-sterilizes the initially filtered wastewater, improving resource utilization.

[0037] like Figures 1 to 10As shown, the present invention discloses a cutting wastewater treatment and recycling device. During operation, two motors 10 synchronously drive two gears 11 to rotate. The two gears 11 mesh with two racks 9, driving a vertical partition 4 to move backward along two slide rails 8 to the rear end of the separation chamber of the oil-water separator 1. Cutting wastewater generated by the CNC machine tool is input into a filter 21 for filtration. The filtered wastewater enters the centrifugal chamber through the inlet of a pump body 19. Motor 23 drives a centrifugal impeller 24 to rotate, causing the wastewater in the centrifugal chamber of the pump body 19 to rotate and rise along the outer inner wall of the centrifugal chamber. During the rising process, heavy debris and other solid particles in the wastewater gradually accumulate on the outside and are separated by annular partitions 25 before being discharged through a slag discharge pipe 26. Oily wastewater located on the inner side is separated by annular partitions 25 and input into the front of the separation chamber of the oil-water separator 1 through a liquid delivery pipe 22. Simultaneously, an aerator 13 generates ozone, which is input into the oil-water separator through an air delivery pipe 14. The ozone is evenly distributed into the separation chamber of the oil-water separator 1 through multiple aeration holes of the lower baffle 3, forming microbubbles. As the ozone microbubbles rise, they combine with floating oil droplets and light micro-debris in the wastewater to form clumps that float on the surface of the wastewater. At the same time, the ozone sterilizes and disinfects the cutting wastewater. When the input wastewater reaches the set liquid level, the input of cutting wastewater is stopped. The drive component drives the vertical baffle 4 to move forward, causing the upper part of the vertical baffle 4 to push the floating oil forward, thereby aggregating the floating oil into a floating oil zone with a certain depth. The wastewater in the front flows to the rear of the separation chamber of the oil-water separator 1 through the filter cloth 18 on the return channel 5. The valve of the oil drain pipe 6 is opened to discharge the floating oil in the floating oil zone, and the valve of the drain pipe 7 is opened to discharge the remaining usable cutting fluid for reuse. The residual ozone accumulated inside the cover 2 is input into the filter 21 through the residual gas pipe 27 to premix with the cutting wastewater in the filter 21, realizing the recycling and sterilization of ozone.

[0038] The main beneficial effects achieved by this invention include: 1. The use of vertical baffles to separate floating oil from wastewater makes operation simpler and ensures that the ability to separate floating oil remains stable without decreasing, thus significantly improving the efficiency of oil-water separation. 2. The inclined plate design causes the floating oil to form a V-shaped aggregation zone during the pushing process, which facilitates centralized discharge; the filter cloth intercepts floating oil droplets, further enhancing the separation effect; 3. The microbubbles generated by aeration combine with floating oil and light debris to form clumps, accelerating the rise of floating oil; ozone sterilizes and disinfects wastewater, enhancing its reuse value. 4. The automatic sealing structure of the piston and conical hood effectively prevents wastewater backflow after aeration stops; 5. The multi-stage filtration of the filter and the centrifugal separation of the centrifugal impeller achieve two-stage solid-liquid separation, ensuring that the wastewater entering the oil-water separator has a low sludge content; 6. The annular baffle effectively separates heavy debris from light wastewater; 7. The residual gas pipe recovers ozone and reuses it in the filter, realizing the reuse and pre-sterilization of residual ozone.

[0039] Although embodiments of the present invention have been shown and described, it should be understood that the scope of protection of the present invention is not limited to the specific embodiments disclosed, but rather allows for changes, modifications, substitutions, and variations without departing from the principles of the invention. For example, the drive assembly may be replaced with a screw and nut mechanism or a cylinder drive to achieve different power sources; the aerator may be replaced with an air pump or an oxygen source to adapt to different oxidation requirements; the filter may be replaced with a spiral separator or a hydrocyclone to adapt to different solid-liquid separation requirements; and the motor may be replaced with a variable frequency motor to adjust the centrifugal speed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

[0040] The cutting wastewater treatment and recovery equipment of this invention uses common mechanical methods for installation, connection, or setup, and can be implemented as long as it achieves the beneficial effects. The oil-water separator 1, cover 2, lower partition 3, vertical partition 4, oil drain pipe 6, drain pipe 7, slide rail 8, rack 9, motor 10, gear 11, aerator 13, air supply pipe 14, vertical rod 16, piston 17, conical cover 15, filter cloth 18, pump body 19, filter 21, liquid supply pipe 22, motor 23, centrifugal impeller 24, annular partition 25, slag discharge pipe 26, and residual gas pipe 27 of the cutting wastewater treatment and recovery equipment of this invention are commercially available. Technical personnel in this industry only need to install and operate it according to the accompanying instruction manual, without requiring any creative work from those skilled in the art.

[0041] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A cutting wastewater treatment and recycling device, comprising an oil-water separator (1), wherein a separation chamber is provided inside the oil-water separator (1), an opening is provided on the upper end face of the oil-water separator (1), and a cover (2) is installed on the opening of the oil-water separator (1); characterized in that, It also includes a solid-liquid separation mechanism, which is used to separate debris and wastewater and input the wastewater into the front of the separation chamber of the oil-water separator (1). A lower partition (3) is horizontally installed at the bottom of the separation chamber of the oil-water separator (1). A vertical partition (4) is slidably installed in the separation chamber of the oil-water separator (1). The left and right side walls of the vertical partition (4) are slidably connected to the inner wall of the oil-water separator (1). A return channel (5) for wastewater to pass through is provided between the lower part of the vertical partition (4) and the lower partition (3). A drive assembly is installed on the oil-water separator (1). The drive assembly is used to drive the vertical partition (4) to move. An oil drain pipe (6) and a drain pipe (7) are installed on the side wall of the oil-water separator (1). The input end of the oil drain pipe (6) extends into the upper front end of the separation chamber of the oil-water separator (1). The input end of the drain pipe (7) extends into the lower rear end of the separation chamber of the oil-water separator (1).

2. The cutting wastewater treatment and recycling equipment as described in claim 1, characterized in that, It also includes the installation of filter cloth (18) on the return channel (5).

3. The cutting wastewater treatment and recycling equipment as described in claim 1, characterized in that, The drive assembly includes two slide rails (8) horizontally mounted on the oil-water separator (1). The two slide rails (8) are arranged along the front-to-back direction of the oil-water separator (1). The two slide rails (8) are slidably connected to the upper slider of the vertical partition (4). Two motors (10) are mounted on the left and right ends of the vertical partition (4). The output shafts of the two motors (10) are respectively equipped with two gears (11). Two racks (9) are respectively mounted on the left and right side walls of the oil-water separator (1). The two gears (11) mesh with the two racks (9).

4. The cutting wastewater treatment and recycling equipment as described in claim 1, characterized in that, It also includes a sloping plate (12) set in the middle of the vertical partition (4), and the part of the vertical partition (4) above the sloping plate (12) is located on the rear side of the return channel (5).

5. The cutting wastewater treatment and recycling equipment as described in claim 1, characterized in that, It also includes multiple aeration holes on the lower partition (3), an aerator (13) located outside the oil-water separator (1), the air outlet of the aerator (13) connected to the input end of the air supply pipe (14), the output end of the air supply pipe (14) extending into the bottom of the separation chamber of the oil-water separator (1), and the output end of the air supply pipe (14) located below the lower partition (3).

6. The cutting wastewater treatment and recycling equipment as described in claim 5, characterized in that, It also includes multiple conical hoods (15) installed on the lower end face of multiple lower partitions (3), the upper port of multiple conical hoods (15) being connected to the lower end of multiple aeration holes of multiple lower partitions (3), multiple ventilation holes being provided on the lower side wall of multiple conical hoods (15), guide holes being provided on the bottom of multiple conical hoods (15), multiple vertical rods (16) being slidably inserted into the guide holes of multiple conical hoods (15), pistons (17) being installed on the upper end of multiple vertical rods (16), the side wall of multiple pistons (17) contacting the lower inner wall of multiple conical hoods (15), and multiple pistons (17) closing or opening the ventilation holes of multiple conical hoods (15).

7. The cutting wastewater treatment and recycling equipment as described in claim 5, characterized in that, The solid-liquid separation mechanism includes a pump body (19), a filter tank (20) is provided in the center of the upper end face of the pump body (19), a centrifugal chamber is provided inside the pump body (19), an inlet is provided at the bottom of the filter tank (20) and communicates with the center of the centrifugal chamber, a filter (21) is detachably installed in the filter tank (20), a second motor (23) is installed at the bottom of the pump body (19), a centrifugal impeller (24) is rotatably installed at the bottom center of the centrifugal chamber of the pump body (19), the output shaft of the second motor (23) is connected to the centrifugal impeller (24) for transmission, the input end of the liquid delivery pipe (22) is connected to the separation chamber of the pump body (19), and the output end of the liquid delivery pipe (22) extends into the front of the separation chamber of the oil-water separator (1).

8. The cutting wastewater treatment and recycling equipment as described in claim 7, characterized in that, The filter (21) has a multi-layered structure. The filter holes gradually decrease from the inside to the outside of the multi-layered structure to achieve multi-stage filtration.

9. The cutting wastewater treatment and recycling equipment as described in claim 7, characterized in that, It also includes a V-shaped cross-section of the centrifugal chamber of the pump body (19), an annular baffle (25) installed on the top of the centrifugal chamber of the pump body (19), the input end of the liquid delivery pipe (22) is connected to the top of the pump body (19), and the input end of the liquid delivery pipe (22) is located inside the annular baffle (25), the input end of the slag discharge pipe (26) is connected to the upper part of the centrifugal chamber of the pump body (19), and the input end of the slag discharge pipe (26) is located outside the annular baffle (25).

10. The cutting wastewater treatment and recycling equipment as described in claim 7, characterized in that, It also includes the input end of the residual gas pipe (27) passing through the cover (2) and located above the opening of the oil-water separator (1), and the output end of the residual gas pipe (27) extending into the filter (21).

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