Waste cutting fluid recovery device

By combining the separation and filtration mechanism with density difference and filter technology, the problem of difficult removal of oil and impurities in the cutting fluid is solved, efficient oil-water separation and pollutant removal are achieved, the operation is simplified, the water environment is protected and the recycling rate of the cutting fluid is improved.

CN223311789UActive Publication Date: 2025-09-09CHANGZHOU XIANGJIN PRECISION MASCH CO LTD
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Patent Information

Application Number
CN202423138470.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-19
Publication Date
2025-09-09
Estimated Expiration
2034-12-19

AI Technical Summary

Technical Problem

Existing cutting fluid recovery devices cannot effectively remove oil, microorganisms and fine solid impurities in the cutting fluid during filtration, causing environmental pollution and complicated operation, affecting work efficiency.

Method used

The separation mechanism and filtering mechanism are adopted to realize oil-water separation by utilizing density difference, and further separation and purification are achieved through hydrophobic filter and glass fiber filter. The process is controlled by water level sensor and electric ball valve to simplify operation.

Benefits of technology

It realizes oil-water separation and pollutant removal, protects the water environment, simplifies the operation process, improves work efficiency, and realizes the recycling of cutting fluid.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a cutting fluid waste liquid recovery device, and particularly relates to the technical field of waste liquid recovery, the cutting fluid waste liquid recovery device comprises a workbench, a treatment box is fixedly arranged at the top of the workbench, a separation mechanism is arranged in the treatment box, the separation mechanism comprises a partition plate fixedly arranged in the treatment box, and the treatment box is divided into a first cavity and a second cavity by the partition plate; a guide rod is fixedly arranged in the workbench, a floating frame sleeves the guide rod, a water level sensor is fixedly arranged on the inner wall of the treatment box, an oil discharge pipe is arranged on one side of the treatment box in a penetrating manner, a stabilizing frame is fixedly arranged in the first cavity and is arranged on one side of the oil discharge pipe, and a hydrophobic filter screen is clamped in the stabilizing frame; an oil storage barrel is fixedly arranged at one end of the oil discharge pipe. According to the oil recovery device, oil can be effectively separated from waste liquid, oil is prevented from entering a water body, recovery and secondary utilization are realized, and further resources are saved.
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Description

Technical Field

[0001] The utility model relates to the technical field of waste liquid recovery, and more specifically, to a cutting fluid waste liquid recovery device. Background Art

[0002] In various metal cutting processes, such as turning, milling, and drilling, a large amount of cutting fluid is used to cool the tool, lubricate the processing parts, and flush away chips. After a period of use, the cutting fluid will become waste liquid due to mixing with metal debris, oil pollution, and microbial growth. Recovery equipment is needed for treatment to reduce enterprise costs and reduce environmental pollution.

[0003] In the prior art, when cutting fluid is filtered, a large amount of cuttings flow into the filter system along with the cutting fluid. The cuttings accumulate in the filter system, causing the filter system to be blocked and making the filter system unable to function normally.

[0004] After searching, the Chinese patent with authorization announcement number CN115228140A discloses a cutting fluid oil-water separation and filtration system. This structure facilitates the collection of chips by setting a collection box, prevents chips from accumulating in large quantities on the filter plate and causing clogging of the filter plate, improves the stability of the working process of the filtration system, prevents oil pollution from overflowing, and reduces damage to the production environment. Moreover, by setting oil filter holes, the resistance during the movement of the connecting block is reduced, and the content of cutting fluid in the chips is reduced, thereby reducing the waste of cutting fluid and improving the recovery value of chips and cutting fluid. Secondly, by setting a drying barrel, the content of cutting fluid in the chips is reduced, thereby reducing the waste of cutting fluid and improving the recovery value of chips and cutting fluid. When cleaning the chips in the drying barrel, the baffle is pulled out to open the chip discharge port, and the chips in the drying barrel are taken out through the chip discharge port.

[0005] However, in actual use, this structure only collects and processes the chips in the cutting fluid, but cannot completely remove the oil, microorganisms, and remaining fine solid impurities in the cutting fluid. These untreated components will still pollute the environment, and the overall operation is complicated, requiring continuous squeezing and draining of the oil absorption block, which affects work efficiency. Utility Model Content

[0006] In order to overcome the above-mentioned defects of the prior art, the present invention provides a waste cutting fluid recovery device to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above objectives, the present invention provides the following technical solutions:

[0008] The waste cutting fluid recovery device comprises a workbench, a processing box is fixedly arranged on the top of the workbench, and a separation mechanism is arranged inside the processing box;

[0009] The separation mechanism includes a partition fixedly arranged inside the processing box, the partition divides the processing box into a first cavity and a second cavity, a guide rod is fixedly arranged inside the workbench, and a floating frame is sleeved on the outside of the guide rod, a water level sensor is fixedly arranged on the inner wall of the processing box, an oil drain pipe is provided through one side of the processing box, a stabilizing frame is fixedly arranged inside the first cavity, the stabilizing frame is provided on one side of the oil drain pipe, a hydrophobic filter is clamped inside the stabilizing frame, and an oil storage barrel is fixedly provided at one end of the oil drain pipe.

[0010] By adopting the above technical solution, oil can be effectively separated from waste liquid to prevent oil from entering the water body, thereby protecting the water environment, and realizing recycling and secondary utilization, thereby saving resources.

[0011] As a further description of the above technical solution: a filtering mechanism is provided on one side of the treatment box, and the filtering mechanism includes a filter tube that is arranged through the inside of the treatment box, a connecting frame is provided at one end of the filter tube, and one side of the connecting frame is fixedly connected to the surface of the treatment box, and a filter screen is fixedly provided inside the connecting frame, and the filter screen is made of glass fiber material, a waterproof box is provided on one side of the filter tube, and an electric ball valve is fixedly provided inside the waterproof box, a water outlet pipe is provided on one side of the treatment box, and two sewage pipes are provided on one side of the treatment box, and the two sewage pipes are respectively arranged on one side of the first cavity and the second cavity, and a water stop valve is fixedly provided on one side of the sewage pipe.

[0012] By adopting the above technical solution: filtering and purification treatment are achieved, various pollutants in the cutting fluid waste are effectively removed, so that the discharged water meets environmental protection requirements, protects the water environment, maintains the balance of the aquatic ecosystem, and is easy and quick to operate.

[0013] As a further description of the above technical solution: a water inlet pipe is provided on one side of the processing box, a filter box is fixedly provided on one end of the water inlet pipe, one end of the filter box is fixedly connected to the bottom of the workbench, an inclined filter plate is fixedly provided inside the filter box, a water inlet pipe is fixedly provided on the top of the filter box, a feed port is provided on the surface of the inclined filter plate, and a fixed frame is fixedly provided on the bottom of the feed port.

[0014] By adopting the above technical solution: impurities in the waste cutting fluid will affect the performance of the cutting fluid, thereby performing a fast process and making the operation convenient and quick.

[0015] As a further description of the above technical solution: a sliding groove is provided on the surface of the fixed frame, a sliding bar is clamped inside the sliding groove, a collection box is fixedly provided on one side of the sliding bar, two limit frames are fixedly provided on one side of the fixed frame, and latches are inserted into the inside of the two limit frames, a sealing door is hingedly provided on the top of the processing box, and support legs are fixedly provided on the bottom of the workbench.

[0016] By adopting the above technical solution, it is convenient to collect and process the impurities filtered out for the first time, thereby improving work efficiency.

[0017] The technical effects and advantages of this utility model are:

[0018] 1. By setting up a separation mechanism, compared with the existing technology, the filtered cutting fluid enters the first cavity inside the processing box through the water inlet pipe, and then the increasing amount of waste liquid passing through the first cavity drives the float frame to gradually rise with the liquid, and then moves the float frame outside the guide rod. As the amount of waste water in the first cavity increases, the oil droplets inside continue to float up, the oil layer becomes thicker, and the float frame rises. As the thickness of the oil layer increases, the oil begins to flow out of the oil drain pipe and is collected in the oil storage barrel. It is filtered by the hydrophobic filter, thereby further improving the separation effect, thereby achieving water-oil separation;

[0019] 2. By setting up a filtering mechanism, compared with the existing technology, the sewage inside the first cavity is transported to the inside of the second cavity through the filter tube and filtered through the filter screen inside the connecting frame. Since the filter screen is made of glass fiber, it can effectively intercept oil droplets and allow water to pass smoothly, thereby preventing oil from entering the inside of the second cavity. In addition, the water stop valve is opened to discharge the internal waste water through the sewage pipe. Then, the sealing door is opened, and the hydrophobic filter screen and filter screen can be pulled upward to remove for cleaning or replacement. The operation is convenient and quick, and the use effect is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0021] Figure 2 It is a rear cross-sectional structural schematic diagram of the present invention.

[0022] Figure 3 This is a detailed structural diagram of the separation mechanism of the utility model.

[0023] Figure 4 This is a schematic diagram of the filter structure of the utility model.

[0024] Figure 5 This is a schematic diagram of the disassembly structure of the filter mechanism of the present invention.

[0025] The accompanying drawings are marked as follows: 1. workbench; 2. processing box; 3. partition; 4. first cavity; 5. second cavity; 6. guide rod; 7. floating frame; 8. water level sensor; 9. oil drain pipe; 10. stabilizing frame; 11. hydrophobic filter screen; 12. oil storage barrel; 13. filter tube; 14. connecting frame; 15. filter screen; 16. waterproof box; 17. water outlet pipe; 18. sewage pipe; 19. water stop valve; 20. water inlet pipe; 21. filter box; 22. inclined filter plate; 23. water inlet pipe; 24. fixing frame; 25. slide bar; 26. collection box; 27. limit frame; 28. latch; 29. ​​sealing door. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] The embodiments of this application disclose Figure 1-5 The waste cutting fluid recovery device shown includes a workbench 1, a processing box 2 is fixedly provided on the top of the workbench 1, and a separation mechanism is provided inside the processing box 2;

[0028] The separation mechanism includes a partition 3 fixedly arranged inside the processing box 2, and the partition 3 divides the processing box 2 into a first cavity 4 and a second cavity 5. A guide rod 6 is fixedly arranged inside the workbench 1, and a floating frame 7 is sleeved on the outside of the guide rod 6. A water level sensor 8 is fixedly arranged on the inner wall of the processing box 2, and an oil drain pipe 9 is provided through one side of the processing box 2. A stabilizing frame 10 is fixedly arranged inside the first cavity 4, and the stabilizing frame 10 is provided on one side of the oil drain pipe 9. A hydrophobic filter screen 11 is clamped inside the stabilizing frame 10, and an oil storage barrel 12 is fixedly provided at one end of the oil drain pipe 9. The filtered cutting fluid enters the first cavity 4 inside the processing box 2 through the water inlet pipe 20, and then more and more waste liquid passing through the first cavity 4 will drive the floating frame As the liquid gradually rises, the float frame 7 moves with the float frame 7 on the outside of the guide rod 6. Since the float frame 7 is made of lightweight and oil-resistant material, the stability of the float frame 7 is improved. The density difference between oil and water in the wastewater is utilized. The density of oil is usually smaller than that of water, and the oil droplets will gradually float to the surface of the liquid to form an oil layer, while the water is located in the lower layer, thereby realizing oil-water separation. When the oil layer is thin, the float frame 7 is in a lower position. At this time, the electric ball valve inside the waterproof box 16 is in a closed state. As the wastewater inside the first cavity 4 increases, the oil droplets inside continue to float up, the oil layer becomes thicker, and the float frame 7 rises. As the thickness of the oil layer increases, the oil begins to flow out of the oil drain pipe 9 and is collected in the inside of the oil storage barrel 12.

[0029] Reference Figure 2-3 As shown, a filtering mechanism is provided on one side of the treatment box 2, and the filtering mechanism includes a filter tube 13 which is provided through the inside of the treatment box 2, a connecting frame 14 is provided at one end of the filter tube 13, one side of the connecting frame 14 is fixedly connected to the surface of the treatment box 2, a filter screen 15 is fixedly provided inside the connecting frame 14, and the filter screen 15 is made of glass fiber material, a waterproof box 16 is provided on one side of the filter tube 13, and an electric ball valve is fixedly provided inside the waterproof box 16, a water outlet pipe 17 is provided through one side of the treatment box 2, and two sewage pipes 18 are provided through one side of the treatment box 2, and the two sewage pipes 18 are respectively provided on one side of the first cavity 4 and the second cavity 5, for sewage discharge. A water stop valve 19 is fixedly provided on one side of the tube 18. When the position of the float frame 7 rises to the position height set by the water level sensor 8, the water level sensor 8 transmits a signal to the external controller, and the external controller opens the electric ball valve inside the waterproof box 16, thereby allowing the sewage inside the first cavity 4 to be transported to the inside of the second cavity 5 through the filter tube 13. In this process, the wastewater is filtered through the filter mesh 15 inside the connecting frame 14. Since the filter mesh 15 is made of glass fiber material, the filter mesh 15 itself has a certain hydrophilicity, but can effectively intercept oil droplets and allow water to pass smoothly, so as to prevent oil from entering the inside of the second cavity 5, thereby realizing water-oil separation.

[0030] Reference Figure 3-4 As shown, a water inlet pipe 20 is provided on one side of the processing box 2, and a filter box 21 is fixedly provided at one end of the water inlet pipe 20. One end of the filter box 21 is fixedly connected to the bottom of the workbench 1, and an inclined filter plate 22 is fixedly provided inside the filter box 21. A water inlet pipe 23 is fixedly provided on the top of the filter box 21. A feed port is provided on the surface of the inclined filter plate 22, and a fixed frame 24 is fixedly provided at the bottom of the feed port. The cutting fluid waste enters the interior of the filter box 21 through the water inlet pipe 23, and then undergoes preliminary filtration through the inclined filter plate 22, thereby intercepting larger particles of impurities and solid suspended matter of debris, making the waste liquid relatively clear for subsequent separation and purification treatment.

[0031] Reference Figure 1 、 5As shown, a slide groove is provided on the surface of the fixed frame 24, and a slide bar 25 is clamped inside the slide groove. A collection box 26 is fixedly provided on one side of the slide bar 25, and two limit frames 27 are fixedly provided on one side of the fixed frame 24. The interior of the two limit frames 27 are both plugged with latches 28. A sealing door 29 is hingedly provided on the top of the processing box 2, and a supporting leg is fixedly provided on the bottom of the workbench 1. By opening the water stop valve 19, the internal waste water is discharged through the drain pipe 18, and then the sealing door 29 is opened, and the hydrophobic filter screen 11 and the filter screen 15 are pulled upward to be removed for cleaning or replacement. The operation is convenient and quick. At the same time, the latch 28 is pulled upward to separate 28 from the limit frame 27, and then the collection box 26 is pulled outward, thereby driving the slide bar 25 to slide inside the slide groove, thereby removing the collection box 26, which is convenient for processing the internal impurities.

[0032] Working principle of this utility model:

[0033] The utility model is a waste cutting fluid recovery device. When the device is in use, the waste cutting fluid enters the interior of the filter box 21 through the water inlet pipe 23, and then undergoes preliminary filtration through the inclined filter plate 22, thereby intercepting larger particles of impurities and solid suspended matter such as debris, so that the waste liquid becomes relatively clear for subsequent separation and purification treatment. The filtered cutting fluid then enters the first cavity 4 inside the processing box 2 through the water inlet pipe 20, and then more and more waste liquid inside the first cavity 4 will drive the float frame 7 to gradually rise with the liquid, and then move the float frame 7 outside the guide rod 6, which is The float frame 7 is made of a lightweight and oil-resistant material, thereby improving the stability of the float frame 7. The density difference between oil and water in the wastewater is used. The density of oil is usually smaller than that of water, and the oil droplets will gradually float to the surface of the liquid to form an oil layer, while the water is located in the lower layer, thereby achieving oil-water separation. When the oil layer is thin, the float frame 7 is in a lower position. At this time, the electric ball valve inside the waterproof box 16 is in a closed state. As the wastewater inside the first cavity 4 increases, the oil droplets inside continue to float up, the oil layer becomes thicker, and the float frame 7 rises. As the thickness of the oil layer increases, the oil begins to flow out of the oil drain pipe 9 and is collected in the oil storage barrel 12.

[0034] Moreover, during this process, the hydrophobic filter 11 provided inside the stabilizing frame 10 has the property of being hydrophobic, i.e., repelling water and being affinity for oil. When the mixture containing oil and water contacts the hydrophobic filter 11, water forms water droplets on the surface of the hydrophobic filter 11. Due to the effect of surface tension, the water droplets cannot pass through the pores of the hydrophobic filter 11, but gather on the surface of the hydrophobic filter 11 and roll down. The oil, on the other hand, has a good affinity with the surface of the hydrophobic filter 11, and thus passes through the pores of the filter more smoothly, thereby further improving the separation effect. It is worth noting that the hydrophobic filter 11 belongs to the prior art and will not be described in detail in this technical solution.

[0035] When the position of the float frame 7 rises to the position height set by the water level sensor 8, the water level sensor 8 transmits a signal to the external controller, and the external controller opens the electric ball valve inside the waterproof box 16, thereby allowing the sewage inside the first cavity 4 to be transported to the inside of the second cavity 5 through the filter tube 13. During this process, the wastewater is filtered through the filter mesh 15 inside the connecting frame 14. Since the filter mesh 15 is made of glass fiber material, the filter mesh 15 itself has a certain degree of hydrophilicity, but can effectively intercept oil droplets and let water pass smoothly, so as to prevent oil from entering the inside of the second cavity 5, thereby achieving water-oil separation;

[0036] Then, the sealed door 29 is opened and a fungicide is added to the water inside the first cavity 4. The fungicide is hydrogen peroxide, which is a common oxidizing fungicide. When it decomposes, it releases new ecological oxygen with strong oxidizing properties, which can oxidize and destroy the cell walls, cell membranes and biomacromolecules such as enzymes in the cells of microorganisms, thereby achieving the purpose of killing microorganisms. In addition, the decomposition products are water and oxygen, and no harmful residues will be left in the recovered cutting fluid. The purified cutting fluid is connected to the external water pump through the outlet pipe 17, and the purified cutting fluid is discharged and collected, thereby realizing the recycling and reuse of the waste cutting fluid.

[0037] After use, open the water stop valve 19 to discharge the internal waste water through the drain pipe 18, then open the sealing door 29, pull the hydrophobic filter 11 and the filter 15 upward to remove them for cleaning or replacement. The operation is convenient and quick. At the same time, pull the latch 28 upward to separate 28 from the limit frame 27, and then pull the collection box 26 outward, thereby driving the slide bar 25 to slide inside the slide groove, thereby removing the collection box 26, making it convenient to deal with the impurities inside.

[0038] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A cutting fluid waste recovery device, comprising a workbench (1), characterized in that: A processing box (2) is fixedly provided on the top of the workbench (1), and a separation mechanism is provided inside the processing box (2); The separation mechanism includes a partition (3) fixedly arranged inside the processing box (2), and the partition (3) divides the processing box (2) into a first cavity (4) and a second cavity (5). A guide rod (6) is fixedly arranged inside the workbench (1), and a floating frame (7) is sleeved on the outside of the guide rod (6). A water level sensor (8) is fixedly arranged on the inner wall of the processing box (2), and an oil drain pipe (9) is provided through one side of the processing box (2). A stabilizing frame (10) is fixedly arranged inside the first cavity (4), and the stabilizing frame (10) is provided on one side of the oil drain pipe (9). A hydrophobic filter (11) is clamped inside the stabilizing frame (10), and an oil storage barrel (12) is fixedly provided at one end of the oil drain pipe (9).

2. The cutting fluid waste recovery device according to claim 1, characterized in that: A filter mechanism is provided on one side of the treatment box (2), and the filter mechanism includes a filter tube (13) provided through the interior of the treatment box (2). A connection frame (14) is provided at one end of the filter tube (13), and one side of the connection frame (14) is fixedly connected to the surface of the treatment box (2). A filter screen (15) is fixedly provided inside the connection frame (14), and the filter screen (15) is made of glass fiber material.

3. The waste cutting fluid recovery device according to claim 2, characterized in that: A waterproof box (16) is provided on one side of the filter tube (13), and an electric ball valve is fixedly provided inside the waterproof box (16).

4. The cutting fluid waste recovery device according to claim 1, characterized in that: A water outlet pipe (17) is provided through one side of the treatment box (2), and two sewage pipes (18) are provided through one side of the treatment box (2). The two sewage pipes (18) are provided on one side of the first cavity (4) and the second cavity (5), respectively. A water stop valve (19) is fixedly provided on one side of the sewage pipe (18).

5. The waste cutting fluid recovery device according to claim 1, characterized in that: A water inlet pipe (20) is provided through one side of the processing box (2), a filter box (21) is fixedly provided at one end of the water inlet pipe (20), and one end of the filter box (21) is fixedly connected to the bottom of the workbench (1).

6. The waste cutting fluid recovery device according to claim 5, characterized in that: An inclined filter plate (22) is fixedly provided inside the filter box (21), a water inlet pipe (23) is fixedly provided on the top of the filter box (21), a feed inlet is provided on the surface of the inclined filter plate (22), and a fixing frame (24) is fixedly provided at the bottom of the feed inlet.

7. The waste cutting fluid recovery device according to claim 6, characterized in that: A sliding groove is provided on the surface of the fixed frame (24), a sliding bar (25) is clamped inside the sliding groove, a collecting box (26) is fixedly provided on one side of the sliding bar (25), two limiting frames (27) are fixedly provided on one side of the fixed frame (24), and a latch (28) is inserted inside the two limiting frames (27).

8. The waste cutting fluid recovery device according to claim 1, characterized in that: A sealing door (29) is hingedly provided on the top of the processing box (2), and supporting legs are fixedly provided on the bottom of the workbench (1).

Citation Information

Patent Citations

  • Oil-water separating and filtering system for cutting fluid

    CN115228140A