A device for rapid natural precipitation of waste lubricating oil

Abstract

The present invention relates to the technical field of lubricating oil treatment, specifically to a device for rapid natural sedimentation of waste lubricating oil, comprising a sedimentation cylinder and a fixed plate distributed just above the sedimentation cylinder and fixedly connected to an external object, wherein a filtering mechanism is arranged inside the sedimentation cylinder; the filtering mechanism comprises a filtering assembly 1, wherein the filtering assembly 1 comprises a filtering cylinder arranged on the upper side of the interior of the sedimentation cylinder, and a slide rail of an annular structure is fixed on the upper side of the exterior of the filtering cylinder, and the filtering cylinder is rotatably connected to the inner wall of the sedimentation cylinder via the slide rail. The filtering structure provided in the present application can, on the one hand, effectively filter and remove impurities from metal wires in cutting oil, and collect the filtered metal wires, and the collected metal wires are stacked and laid in the filtering structure to form a better wire mesh filtering structure, which can further improve the filtering effect in reverse, and on the other hand, provide secondary filtration, further increase the filtering area of ​​the filtered cutting oil, and filter the sludge and metal dust impurities in the cutting oil, thereby improving the quality of subsequent cutting oil.

Description

Technical Field

[0001] The invention relates to the technical field of lubricating oil treatment, in particular to a device for rapid natural precipitation of waste lubricating oil. Background Art

[0002] Lubricating oil is a liquid used to reduce friction and wear, while cutting oil and guideway oil are both types of lubricating oil. The concept of lubricating oil generally covers cutting oil and guideway oil;

[0003] Cutting oil plays an important role in the field of machine tool processing. It not only provides lubrication and cooling for tools and workpieces, but also effectively protects tools from wear. With use, cutting oil will gradually lose its original performance due to the accumulation of impurities and pollutants. In order to solve this problem, a special oil filter is generally used to filter the cutting oil to remove impurities and pollutants, so as to achieve the reuse of cutting oil. This practice can not only extend the service life of cutting oil, but also save costs to a certain extent;

[0004] During the use of parts processing machine tools, the milling of parts is often used in conjunction with cutting oil. However, the cutting oil is mixed with metal impurities generated during the milling process during use. This type of metal impurities has certain characteristics. For example, during the milling of alloy or aluminum parts, as the milling cutter mills, the metal iron chips generated are often affected by the stress during the milling process, and the iron chips are wavy or spiral structures. The cutting oil mixed with such metal iron chips often needs to be filtered in the subsequent recycling process to filter out the iron chips;

[0005] However, in traditional filtering equipment, for filtering iron chips mixed in cutting oil, most of them adopt filtering structure filtering and magnetic suction filtering (for example, a filtering device for lubricating oil production disclosed in the utility model patent with announcement number CN219580796U). The above alloy and aluminum materials are not applicable to the magnetic suction structure, and the filtering structure mostly adopts the filtering plate and filtering mesh filtering structure (for example, a lubricating oil filter disclosed in the utility model patent with announcement number CN221618809U). In the process of filtering cutting oil, it is very easy to cause iron chips to hook the mesh of the filtering structure and cause the filtering structure to be blocked, which affects the subsequent processing effect, and the filtering structure needs to be disassembled to process the iron chips and metal wires attached thereto, and the processing process is also very cumbersome;

[0006] It is generally difficult to remove iron filings attached to the surface of the filter by pickling or high-pressure washing, which affects the service life of the filter. Manual removal with tools will also increase the workload of maintenance personnel, and the cleaning effect is not ideal.

[0007] Therefore, a device for rapid natural sedimentation of waste lubricating oil is proposed. Summary of the invention

[0008] The purpose of the present invention is to provide a waste lubricating oil rapid natural precipitation device which can reduce the hooking and attachment of non-magnetic metal iron filings impurities such as metal wire to the filter structure, so as to solve the problems raised in the above background technology.

[0009] To achieve the above object, the present invention provides the following technical solution: a waste lubricating oil rapid natural sedimentation device, comprising a sedimentation cylinder and a fixed plate distributed just above the sedimentation cylinder and fixedly connected to an external object, wherein a filtering mechanism is arranged inside the sedimentation cylinder;

[0010] The filter mechanism includes a filter assembly 1, which includes a filter cartridge arranged on the upper side of the sedimentation cylinder, and a slide rail with an annular structure is fixed on the upper side of the outside of the filter cartridge. The filter cartridge is rotatably connected to the inner wall of the sedimentation cylinder through the slide rail. The bottom of the filter cartridge is designed as a hollow mesh structure, and a steel wire mesh is placed on the lower side of the inside of the filter cartridge.

[0011] A top cover is movably connected to the upper side of the filter cylinder, and a liquid inlet pipe is connected to the top cover; a bottom plate is fixedly connected to the lower side of the sedimentation cylinder, and the upper end surface of the bottom plate is inclined; a drain pipe is fixedly connected to the outside of the sedimentation cylinder, and the drain pipe is distributed on the upper side of the bottom plate.

[0012] Preferably, a servo motor is fixedly connected to the middle part of the lower end surface of the bottom plate, and a transmission shaft fixed to the output shaft of the servo motor is rotatably connected inside the sedimentation cylinder, a threaded rod is rotatably connected to the top of the transmission shaft, a guide tube is fixed to the middle part of the upper end surface of the top cover, and the interior of the guide tube is designed with a threaded structure, the top of the threaded rod passes through the top cover and is located inside the guide tube and is threadedly connected to the guide tube.

[0013] Preferably, the top of the guide tube passes through the fixed plate, and a sliding part is arranged between the guide tube and the fixed plate. The sliding part includes a sliding block fixed to the inner wall of the fixed plate and a sliding groove opened on the outer wall of the guide tube. The sliding block is located inside the sliding groove, and the sliding block is slidably connected to the sliding groove. An electromagnet 2 with an annular structure is sleeved at the connection between the threaded rod and the transmission shaft, and the electromagnet 2 is fixedly connected to the threaded rod. The transmission shaft passes through the filter cartridge, and an electromagnet 1 is arranged at the connection between the transmission shaft and the filter cartridge, and the electromagnet 1 is fixed to the filter cartridge. The wire mesh located in the filter cartridge is sleeved on the outside of the transmission shaft and does not contact the transmission shaft.

[0014] Preferably, filter elements are distributed in an annular manner at equal distances on the inner wall of the filter cartridge, and the filter elements are located on the upper side of the wire mesh. The filter elements include a drainage groove that runs through the filter cartridge, and movable grooves are provided on both sides of the drainage groove. A sealing plate and a filter plate are movably connected in the two movable grooves, and a connecting plate is fixed to the adjacent ends of the sealing plate and the filter plate. The filter plate, the connecting plate and the sealing plate are designed in a Z-shaped structure, and a spring is fixed between the connecting plate and the drainage groove.

[0015] Preferably, the filtering mechanism also includes a second filtering component, which includes a liquid collecting bucket and a conical filter plate with a conical structure design. A discharge port is provided through the bottom of the liquid collecting bucket. The liquid collecting bucket and the conical filter plate are sleeved on the outside of the transmission shaft. The liquid collecting bucket is located on the upper side of the conical filter plate. The top of the liquid collecting bucket is fixed to the inner wall of the sedimentation cylinder. The bottom of the conical filter plate is fixedly connected to a sludge box with an annular structure, and the sludge box is fixed to the inner wall of the sedimentation cylinder.

[0016] Preferably, the interior of the liquid collecting hopper and the outer surface of the conical filter plate are evenly distributed with flow-blocking strips of annular structure.

[0017] Preferably, upper scraping strips are symmetrically fixed in the liquid collecting bucket, and the upper scraping strips are in contact with the inner wall of the liquid collecting bucket. The contact surfaces of the upper scraping strips and the liquid collecting bucket are provided with bayonet holes matching the flow blocking strips, and the two upper scraping strips are fixed to the transmission shaft.

[0018] Preferably, the outside of the conical filter plate is symmetrically provided with lower scraping strips, which are designed to fit the upper end surface of the conical filter plate, and the lower end surface of the lower scraping strip is also provided with a bayonet that matches the choke strip, and the two lower scraping strips are fixed to the transmission shaft.

[0019] Preferably, the top of the oil mud box is open and corresponds to the lower edge of the conical filter plate, and the inner wall of the oil mud box is provided with a filter hole connected to the inside of the oil mud box.

[0020] Preferably, a collecting box is screwed to the outside of the sedimentation cylinder at a corresponding position of the sludge box, a discharge port is opened on the inner wall of the sedimentation cylinder between the collecting box and the sludge box, a valve is built in the discharge port, a cleaning port connected to the inside of the sludge box is opened on the side of the outside of the sedimentation cylinder opposite to the collecting box, a valve is also provided inside the cleaning port, and the collecting groove inside the sludge box is opened at an inclined angle, with the collecting groove being at a low point near the collecting box and at a high point near the cleaning port.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1. The filtering structure provided in the present application can, on the one hand, effectively filter and remove impurities from the metal wires in the cutting oil, and collect the filtered metal wires. The collected metal wires are stacked and laid in the filtering structure to form a better wire mesh filtering structure to further improve the filtering effect. On the other hand, it provides secondary filtering, further increases the filtering area of ​​the filtered cutting oil, and filters the sludge and metal dust impurities in the cutting oil, thereby improving the quality of the subsequent cutting oil;

[0023] 2. The present application further cleans the filter structure to avoid clogging of the filter structure, collects the sludge and metal dust generated by the cleaning, squeezes the filtered and collected metal wires into blocks for collection, and improves the economic benefits of the enterprise. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 It is the overall structural view of the present invention;

[0026] Figure 2 It is a bottom view of the overall structure of the present invention;

[0027] Figure 3 It is an exploded view of a local structure of the present invention;

[0028] Figure 4 It is a cross-sectional view of the overall structure of the present invention;

[0029] Figure 5 For the present invention Figure 4 Enlarged view of point B in the middle;

[0030] Figure 6 This is a combined view of the upper scraper and the liquid collecting bucket of the present invention;

[0031] Figure 7 For the present invention Figure 4 Enlarged view of point A in the middle;

[0032] Figure 8 It is a cross-sectional view of the filter element of the present invention.

[0033] Description of reference numerals:

[0034] 1. Sedimentation cylinder; 11. Collection box; 12. Drain pipe; 13. Top cover; 14. Liquid inlet pipe; 15. Fixed plate; 151. Sliding block; 16. Guide tube; 161. Slide; 17. Servo motor; 18. Bottom plate; 2. Filter assembly one; 21. Filter cylinder; 22. Slide rail; 23. Filter element; 24. Electromagnet one; 25. Threaded rod; 26. Electromagnet two; 27. Wire mesh; 231. Drain trough; 232. Sealing plate; 233. Filter sheet; 234. Spring; 235. Movable groove; 236. Connecting plate; 3. Filter assembly two; 31. Liquid collecting bucket; 32. Conical filter plate; 33. Lower scraper; 34. Sludge box; 341. Cleaning port; 35. Upper scraper; 36. choke; 4. Drive shaft. DETAILED DESCRIPTION

[0035] 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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0036] See also Figures 1 to 8 , the present invention provides a technical solution:

[0037] A waste lubricating oil rapid natural sedimentation device comprises a sedimentation cylinder 1 and a fixing plate 15 which is distributed just above the sedimentation cylinder 1 and fixedly connected to an external object, wherein a filtering mechanism is arranged inside the sedimentation cylinder 1;

[0038] The filtering mechanism includes a filtering assembly 2, which includes a filtering cylinder 21 arranged on the upper side of the sedimentation cylinder 1, and a slide rail 22 of an annular structure is fixed on the upper side of the outside of the filtering cylinder 21. The filtering cylinder 21 is rotatably connected to the inner wall of the sedimentation cylinder 1 through the slide rail 22. The bottom of the filtering cylinder 21 is designed as a hollow mesh structure, and a steel mesh 27 is placed on the lower side of the inside of the filtering cylinder 21.

[0039] A top cover 13 is movably connected to the upper side of the interior of the filter cylinder 21, and a liquid inlet pipe 14 is connected to the top cover 13; a bottom plate 18 is fixedly connected to the lower side of the interior of the sedimentation cylinder 1, and the upper end surface of the bottom plate 18 is inclined; a drain pipe 12 is fixedly connected to the outside of the sedimentation cylinder 1, and the drain pipe 12 is distributed on the upper side of the bottom plate 18.

[0040] Specifically, if Figure 2 and Figure 4 , Figure 5 As shown, a servo motor 17 is fixedly connected to the middle of the lower end surface of the bottom plate 18, and a transmission shaft 4 fixed to the output shaft of the servo motor 17 is rotatably connected inside the sedimentation cylinder 1, and a threaded rod 25 is rotatably connected to the top of the transmission shaft 4, and a guide tube 16 is fixed to the middle of the upper end surface of the top cover 13, and the inside of the guide tube 16 is designed with a threaded structure, the top of the threaded rod 25 passes through the top cover 13 and is located inside the guide tube 16 and is threadedly connected to the guide tube 16, and an electromagnet 26 of an annular structure is sleeved at the connection between the threaded rod 25 and the transmission shaft 4, and the electromagnet 26 is fixedly connected to the threaded rod 25;

[0041] The top of the guide tube 16 passes through the fixed plate 15, and a sliding member is arranged between the guide tube 16 and the fixed plate 15. The sliding member includes a slider 151 fixed to the inner wall of the fixed plate 15 and a slide groove 161 opened on the outer wall of the guide tube 16. The slider 151 is located inside the slide groove 161, and the slider 151 is slidably connected to the slide groove 161.

[0042] By adopting the above technical scheme, when working, the liquid inlet pipe 14 is connected to the external waste cutting oil supply equipment, and the external supply equipment injects cutting oil into the filter cylinder 21 in the sedimentation cylinder 1 through the liquid inlet pipe 14. In this process, the metal scraps in the cutting oil are mainly filtered through the wire mesh 27, and then the cutting oil is discharged downward through the hollow structure at the bottom of the filter cylinder 21 after primary filtration. As more and more internal metal scraps and metal wires are filtered, they will accumulate inside the filter cylinder 21 and form a filtering structure with a certain thickness with the wire mesh 27, further improving the filtering effect of the cutting oil. The user formulates a processing cycle according to the production and processing volume of the cutting oil, such as one working day or three working days as the standard. When the formulated processing cycle is reached, the liquid inlet pipe 14 is stopped from conveying cutting oil to the inside of the filter cylinder 21. At this time, the user controls the electromagnet 26 to conduct electricity through a controller connected to the electromagnet 26 from the outside. The bottom of the threaded rod 25 is magnetically fixed to the top of the transmission shaft 4, and then the servo motor 17 is controlled to rotate, driving the transmission shaft 4 and the threaded rod 25 to rotate, and the threaded rod 25 is threadedly connected to the inner wall of the guide tube 16. At this time, the guide tube 16 is guided by the sliding member between the fixed plate 15, and the guide tube 16 drives the top cover 13 connected to the bottom to move down inside the filter cartridge 21, and compresses the metal wire in the filter cartridge 21. On the one hand, it can squeeze out the cutting oil remaining in the metal wire, and on the other hand, the gap between the "cake-shaped" metal wire after extrusion becomes smaller. When the cutting oil continues to be filtered later, it can further improve the filtering effect of the cutting oil. Of course, the user can also control the motor to rotate slowly in the reverse direction, control the top cover 13 to move up, open the upper opening of the filter cartridge 21, and the user takes out the "cake-shaped" metal wire and wire mesh 27, recycles them, and then re-lays the wire mesh 27 in the filter cartridge 21.

[0043] Specifically, if Figure 3 and Figure 4 As shown, the transmission shaft 4 passes through the filter cartridge 21, and an electromagnet 24 is provided at the connection between the transmission shaft 4 and the filter cartridge 21. The electromagnet 24 is fixed to the filter cartridge 21, and the wire mesh 27 located in the filter cartridge 21 is sleeved on the outside of the transmission shaft 4 and does not contact the transmission shaft 4.

[0044] By adopting the above technical scheme, since the connection position between the liquid inlet pipe 14 and the top cover 13 remains unchanged, the position of the liquid inlet pipe 14 discharging liquid into the filter cartridge 21 is also fixed. In order to prevent the metal wire filtered in the filter cartridge 21 from being distributed in the filter cartridge 21 in a hilly shape and unable to evenly contact the steel mesh 27 in the filter cartridge 21, the present application addresses this problem. When the liquid inlet pipe 14 is discharging liquid into the filter cartridge 21, the filter cartridge 21 is in a state of slow rotation, that is, the top cover 13 does not move, and the filter cartridge 21 rotates slowly through the slide rail 22 to achieve contact between the cutting oil and the steel mesh 27 in the filter cartridge 21 at various positions. The specific process is as follows: the user controls the electromagnet 1 24 between the transmission shaft 4 and the filter cartridge 21 to conduct electricity and generate magnetic attraction, the filter cartridge 21 and the transmission shaft 4 are fixed by magnetic attraction, and the electromagnet 2 26 is powered off to keep the position of the top cover 13 unchanged, and then the servo motor 17 The filter cartridge 21 can be driven to rotate slowly by the transmission shaft 4. Since the filter cartridge 21 is rotatably connected and supported by the slide rail 22 of the annular structure and the inner wall of the sedimentation cartridge 1, when the electromagnet 1 24 is conductive and generates magnetic attraction and is magnetically fixed to the transmission shaft 4, the electromagnet 1 24 is also fixed to the filter cartridge 21. Therefore, the servo motor 17 drives the transmission shaft 4 to drive the filter cartridge 21 to rotate circumferentially under the magnetic attraction and fixing action of the electromagnet 1 24. The electromagnet 1 24, the electromagnet 2 26 and the servo motor 17 here are all connected to the external controller and the power supply. During specific operation, the user controls the power-on and power-off states of the electromagnet 1 24 and the electromagnet 2 26 respectively through the controller, so as to realize the state control of the electromagnet 1 24 and the electromagnet 2 26 generating magnetic force for magnetic attraction when being powered on and the disappearance of the electromagnetic force when being powered off, and controls the driving operation of the servo motor 17 and the speed control of the servo motor 17 through the controller.

[0045] Specifically, if Figure 3 and Figure 4 , Figure 8 As shown, filter elements 23 are distributed in an annular manner at equal intervals on the inner wall of the filter cartridge 21, and the filter elements 23 are located on the upper side of the wire mesh 27. The filter element 23 includes a drainage groove 231 that penetrates the filter cartridge 21, and movable grooves 235 are provided on both sides of the drainage groove 231. A sealing plate 232 and a filter sheet 233 are movably connected in the two movable grooves 235. A connecting plate 236 is fixed to the adjacent ends of the sealing plate 232 and the filter sheet 233. The filter sheet 233, the connecting plate 236 and the sealing plate 232 are designed in a Z-shaped structure, and a spring 234 is fixed between the connecting plate 236 and the drainage groove 231.

[0046] By adopting the above technical solution, the design purpose of the same filter 23 is also to further remove the cutting oil contained in the metal wire after filtering. Different from the downward extrusion method of the top cover 13, the design of the filter 23 adopts centrifugal de-oiling. The structure of the filter 23 and the downward structure of the top cover 13 can be selected and installed or shared by the user. The specific operation is as follows: the transmission shaft 4 drives the filter cartridge 21 to rotate at a high speed. During the rotation of the filter cartridge 21, the centrifugal force squeezes the spring 234, so that the filter sheet 233, the connecting plate 236 and the sealing plate 232 The filter cartridge 21 is displaced in the movable groove 235 provided on the inner wall of the drainage groove 231. At this time, the sealing plate 232 is displaced and hidden in the movable groove 235, while the filter sheet 233 is exposed in the drainage groove 231. Then, under the action of centrifugal force, the cutting oil in the metal wire is separated from the filter cartridge 21 through the filter sheet 233 and falls along the inner wall of the sedimentation cylinder 1. When the servo motor 17 stops rotating, or the centrifugal force driving the filter cartridge 21 to rotate is less than the elastic force of the spring 234, the filter sheet 233, the connecting plate 236 and the sealing plate 232 are reset.

[0047] Specifically, if Figure 3 , Figure 4 , Figure 6 and Figure 7 As shown, the filtering mechanism also includes a filtering component 2 3, and the filtering component 2 3 includes a liquid collecting bucket 31 and a conical filter plate 32 with a conical structure design. A discharge port is opened through the bottom of the liquid collecting bucket 31, and the liquid collecting bucket 31 and the conical filter plate 32 are sleeved on the outside of the transmission shaft 4. The liquid collecting bucket 31 is located on the upper side of the conical filter plate 32, and the top of the liquid collecting bucket 31 is fixed to the inner wall of the sedimentation cylinder 1. The bottom of the conical filter plate 32 is fixedly connected to a sludge box 34 with an annular structure, and the sludge box 34 is fixed to the inner wall of the sedimentation cylinder 1.

[0048] The inside of the liquid collecting bucket 31 and the outer surface of the conical filter plate 32 are evenly distributed with annular choke strips 36, and upper scraper strips 35 are symmetrically fixed in the liquid collecting bucket 31, and the upper scraper strips 35 are in contact with the inner wall of the liquid collecting bucket 31, and the contact surface between the upper scraper strip 35 and the liquid collecting bucket 31 is provided with a bayonet matching the choke strip 36, and the two upper scraper strips 35 are fixed to the transmission shaft 4, and the outside of the conical filter plate 32 is symmetrically provided with lower scraper strips 33, and the lower scraper strips 33 are designed to fit the upper end surface of the conical filter plate 32, and the lower end surface of the lower scraper strip 33 is also provided with a bayonet matching the choke strip 36, and the two lower scraper strips 33 are fixed to the transmission shaft 4.

[0049] By adopting the above technical scheme, the filtering structures such as the filter cartridge 21 and the wire mesh 27 can only filter the larger impurities mixed in the cutting oil, such as iron filings, metal wires and other impurities when filtering the cutting oil. However, the larger metal impurities in the cutting oil during use or other particulate matter mixed in the transportation process cannot be filtered. Therefore, such impurities are further processed by designing the liquid collecting bucket 31 and the conical filter plate 32. The cutting oil filtered by the filter cartridge 21 falls to the inner wall of the liquid collecting bucket 31, and extends the inner wall of the liquid collecting bucket 31 to slide downward. During this process, the cutting oil contacts the flow blocking strip 36 to slow down the falling speed of the cutting oil and hinder the larger particulate impurities contained therein. Then, the cutting oil drips onto the surface of the conical filter plate 32 through the discharge port at the lower end of the liquid collecting bucket 31, and then continues to slide along the surface of the conical filter plate 32 to filter the cutting oil, wherein the larger particulate matter slides along the conical filter plate 32 and the flushing of the cutting oil into the oil mud box 34;

[0050] During the processing, a large amount of impurities are attached to the inner wall of the liquid collecting bucket 31 and the outer surface of the conical filter plate 32, which need to be further cleaned. At this time, the transmission shaft 4 rotates to drive the upper scraper bar 35 and the lower scraper bar 33 to rotate, and the inner wall of the liquid collecting bucket 31 and the outer surface of the conical filter plate 32 are scraped and cleaned. The cleaned impurities slide into the oil mud box 34. If the cutting oil recovery quality is good, the upper scraper bar 35, the lower scraper bar 33 and the transmission shaft 4 can be fixed by electromagnetic magnetic attraction and artificial interference, and the cleaning can be selectively driven by humans.

[0051] Specifically, if Figure 3 and Figure 4 As shown, the top of the sludge box 34 is open and corresponds to the lower edge of the conical filter plate 32. The inner wall of the sludge box 34 is provided with filter holes connected to the inside of the sludge box 34. The outside of the sedimentation cylinder 1 is screwed to the corresponding position of the sludge box 34 with a collecting box 11. A discharge port is provided on the inner wall of the sedimentation cylinder 1 between the collecting box 11 and the sludge box 34. The discharge port has a built-in valve. A cleaning port 341 connected to the inside of the sludge box 34 is provided on the side of the outside of the sedimentation cylinder 1 opposite to the collecting box 11. A valve is also provided inside the cleaning port 341. The collecting tank inside the sludge box 34 is opened at an inclined angle, with the collecting tank near the collecting box 11 as the low point and near the cleaning port 341 as the high point.

[0052] By adopting the above technical scheme, the impurities collected in the sludge box 34 will be filtered through the inner wall filter holes, and the cutting oil will fall onto the bottom plate 18 at the bottom of the sedimentation cylinder 1 for sedimentation. The impurities in the sludge box 34 can be discharged through the discharge port valve to the collection box 11 for storage according to the working day standard formulated in the production processing cycle. The inclination angle of the collection tank in the sludge box 34 is also designed to facilitate the flow of impurities to the collection box, and the cleaning port 341 is also designed to be connected to an external spray cleaning device to clean the sludge box 34. After a period of sedimentation, the cutting oil on the bottom plate 18 is discharged through the discharge pipe to realize the recycling of the cutting oil.

[0053] Working principle: during operation, the liquid inlet pipe 14 is connected to the external waste cutting oil supply equipment, and the external supply equipment injects cutting oil into the filter cylinder 21 in the sedimentation cylinder 1 through the liquid inlet pipe 14. In this process, the metal scraps in the cutting oil are mainly filtered through the wire mesh 27, and then the cutting oil is discharged downward through the hollow structure at the bottom of the filter cylinder 21 after primary filtration. As more and more internal metal scraps and metal wires are filtered, they will accumulate inside the filter cylinder 21 and form a filtering structure with a certain thickness with the wire mesh 27, further improving the filtering effect of the cutting oil. The user formulates a processing cycle according to the production and processing volume of the cutting oil, such as one working day or three working days as the standard. When the formulated processing cycle is reached, the liquid inlet pipe 14 is stopped from conveying cutting oil to the inside of the filter cylinder 21. At this time, the user controls the electromagnet 26 to conduct electricity through a controller connected to the electromagnet 26 from the outside world, so as to make the thread The bottom of the rod 25 is fixed to the top of the transmission shaft 4 by magnetic attraction, and then the servo motor 17 is controlled to rotate, driving the transmission shaft 4 and the threaded rod 25 to rotate, and the threaded rod 25 is threadedly connected to the inner wall of the guide tube 16. At this time, the guide tube 16 is guided by the sliding member between the fixed plate 15, and the guide tube 16 drives the top cover 13 connected at the bottom to move down inside the filter cartridge 21, compressing the metal wire in the filter cartridge 21. On the one hand, it can squeeze out the cutting oil remaining in the metal wire, and on the other hand, the gap between the "cake-shaped" metal wire after extrusion becomes smaller. When the cutting oil continues to be filtered later, it can further improve the filtering effect of the cutting oil. Of course, the user can also control the motor to rotate slowly in the reverse direction, control the top cover 13 to move up, open the upper opening of the filter cartridge 21, and the user takes out the "cake-shaped" metal wire and wire mesh 27 for recycling, and then re-lays the wire mesh 27 in the filter cartridge 21.

[0054] Since the connection position between the liquid inlet pipe 14 and the top cover 13 is fixed, the position of the liquid inlet pipe 14 discharging liquid into the filter cartridge 21 is also fixed. In order to prevent the metal wire filtered in the filter cartridge 21 from being distributed in the filter cartridge 21 in a hilly shape and unable to evenly contact the steel mesh 27 in the filter cartridge 21, the present application addresses this problem. When the liquid inlet pipe 14 discharges liquid into the filter cartridge 21, the filter cartridge 21 is in a state of slow rotation, that is, the top cover 13 is stationary, and the filter cartridge 21 rotates slowly through the slide rail 22 to achieve contact between the cutting oil and various positions of the steel mesh 27 in the filter cartridge 21. The specific process is as follows: the user controls the electromagnet 1 24 between the transmission shaft 4 and the filter cartridge 21 to conduct electricity and generate magnetic attraction. The filter cartridge 21 and the transmission shaft 4 are magnetically fixed, and the electromagnet 2 26 is powered off to keep the position of the top cover 13 unchanged. Then the servo motor 17 drives the filter cartridge 21 to rotate slowly through the transmission shaft 4.

[0055] Similarly, the design purpose of the filter element 23 is also to further remove the cutting oil contained in the metal wire after filtering. Different from the downward extrusion method of the top cover 13, the design of the filter element 23 adopts centrifugal de-oiling. The structure of the filter element 23 and the downward structure of the top cover 13 can be selected and installed or shared by the user. The specific operation is as follows: the transmission shaft 4 drives the filter cartridge 21 to rotate at a high speed. During the rotation of the filter cartridge 21, the centrifugal force squeezes the spring 234, so that the filter sheet 233, the connecting plate 236 and the sealing plate 232 are in the filter cartridge 2 1, the sealing plate 232 is displaced in the movable groove 235 provided on the inner wall of the upper drain groove 231, at which time the sealing plate 232 is displaced and hidden in the movable groove 235, while the filter sheet 233 is exposed in the drain groove 231, and then under the action of centrifugal force, the cutting oil in the metal wire passes through the filter sheet 233 and leaves the filter cartridge 21 and falls along the inner wall of the sedimentation cylinder 1. When the servo motor 17 stops rotating, or the centrifugal force driving the filter cartridge 21 to rotate is less than the elastic force of the spring 234, the filter sheet 233, the connecting plate 236 and the sealing plate 232 are reset.

[0056] When filtering cutting oil, the filter cartridge 21 and the steel wire mesh 27 and other filtering structures can only filter out larger impurities mixed in the cutting oil, such as iron filings, metal wires and other impurities, but the larger metal impurities in the cutting oil during use or other particulate matter mixed in the transportation process cannot be filtered out. Therefore, such impurities are further processed by designing a liquid collecting hopper 31 and a conical filter plate 32. The cutting oil filtered by the filter cartridge 21 falls to the inner wall of the liquid collecting hopper 31, and extends the inner wall of the liquid collecting hopper 31 to slide downward. During this process, the cutting oil contacts the flow blocking strip 36, which slows down the falling speed of the cutting oil and hinders the larger particulate matter impurities contained therein. Then, the cutting oil drips onto the surface of the conical filter plate 32 through the discharge port at the lower end of the liquid collecting hopper 31, and then continues to slide along the surface of the conical filter plate 32 to filter the cutting oil, wherein the larger particulate matter slides down into the oil mud box 34 along the conical filter plate 32 and the flushing of the cutting oil.

[0057] During the processing, a large amount of impurities are attached to the inner wall of the liquid collecting bucket 31 and the outer surface of the conical filter plate 32, which need to be further cleaned. At this time, the transmission shaft 4 rotates to drive the upper scraper bar 35 and the lower scraper bar 33 to rotate, and the inner wall of the liquid collecting bucket 31 and the outer surface of the conical filter plate 32 are scraped and cleaned. The cleaned impurities slide into the oil mud box 34. If the cutting oil recovery quality is good, the upper scraper bar 35, the lower scraper bar 33 and the transmission shaft 4 can be fixed by electromagnetic magnetic attraction and artificial interference, and the cleaning can be selectively driven by humans.

[0058] The impurities collected in the sludge box 34 will be filtered through the filter holes on the inner wall, and the cutting oil will fall onto the bottom plate 18 at the bottom of the sedimentation cylinder 1 for sedimentation. The impurities in the sludge box 34 can be discharged through the discharge port valve to the collection box 11 for storage according to the working day standard formulated in the production processing cycle. The inclination angle of the collection tank in the sludge box 34 is also designed to facilitate the flow of impurities to the collection box, and the cleaning port 341 is also designed to be connected to an external spray cleaning device to clean the sludge box 34. After a period of sedimentation, the cutting oil on the bottom plate 18 is discharged through the discharge pipe to realize the recycling of the cutting oil.

[0059] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A waste lubricating oil rapid natural sedimentation device, comprising a sedimentation cylinder (1) and a fixing plate (15) distributed just above the sedimentation cylinder (1) and fixedly connected to an external object, characterized in that: A filtering mechanism is provided inside the sedimentation cylinder (1); The filtering mechanism comprises a filtering assembly (2), wherein the filtering assembly (2) comprises a filtering cylinder (21) arranged on the upper side of the interior of the sedimentation cylinder (1), and a slide rail (22) of an annular structure is fixed to the upper side of the exterior of the filtering cylinder (21), the filtering cylinder (21) is rotatably connected to the inner wall of the sedimentation cylinder (1) via the slide rail (22), the bottom of the filtering cylinder (21) is designed as a hollow mesh structure, and a steel wire mesh (27) is placed on the lower side of the interior of the filtering cylinder (21); The upper side of the filter cylinder (21) is movably connected to a top cover (13), and the top cover (13) is connected to a liquid inlet pipe (14); the lower side of the sedimentation cylinder (1) is fixedly connected to a bottom plate (18), and the upper end surface of the bottom plate (18) is designed to be inclined; the outside of the sedimentation cylinder (1) is connected to and fixed to a liquid discharge pipe (12), and the liquid discharge pipe (12) is distributed on the upper side of the bottom plate (18); A servo motor (17) is fixedly connected to the middle of the lower end surface of the bottom plate (18), and a transmission shaft (4) fixed to the output shaft of the servo motor (17) is rotatably connected inside the sedimentation cylinder (1), and a threaded rod (25) is rotatably connected to the top of the transmission shaft (4). A guide tube (16) is fixed to the middle of the upper end surface of the top cover (13), and the inside of the guide tube (16) is designed with a threaded structure. The top of the threaded rod (25) passes through the top cover (13) and is located inside the guide tube (16) and is threadedly connected to the guide tube (16); The top of the guide tube (16) passes through the fixed plate (15), a sliding member is provided between the guide tube (16) and the fixed plate (15), the sliding member comprising a sliding block (151) fixed to the inner wall of the fixed plate (15) at the point where the sliding block passes through, and a sliding groove (161) provided on the outer wall of the guide tube (16), the sliding block (151) being located inside the sliding groove (161) and being slidably connected, a second electromagnet (26) of an annular structure is sleeved at the point where the threaded rod (25) and the transmission shaft (4) are connected, and the second electromagnet (26) is fixedly connected to the threaded rod (25), the transmission shaft (4) passes through the filter cartridge (21), and a first electromagnet (24) is provided at the point where the transmission shaft (4) and the filter cartridge (21) are connected, the first electromagnet (24) being fixed to the filter cartridge (21), and a steel mesh sheet (27) located inside the filter cartridge (21) is sleeved on the outside of the transmission shaft (4) and does not contact the transmission shaft (4); The inner wall of the filter cartridge (21) is provided with filter elements (23) distributed in an annular manner at equal intervals. The filter elements (23) are located on the upper side of the steel mesh sheet (27). The filter element (23) comprises a liquid drainage groove (231) extending through the filter cartridge (21). Both sides of the liquid drainage groove (231) are provided with movable grooves (235). A sealing plate (232) and a filter sheet (233) are movably connected in the two movable grooves (235). A connecting plate (236) is fixed at the adjacent ends of the sealing plate (232) and the filter sheet (233). The filter sheet (233), the connecting plate (236) and the sealing plate (232) are designed in a Z-shaped structure. A spring (234) is fixed between the connecting plate (236) and the liquid drainage groove (231). The filtering mechanism further comprises a second filtering assembly (3), wherein the second filtering assembly (3) comprises a liquid collecting hopper (31) and a conical filter plate (32) of a conical structure design, wherein a discharge port is provided through the bottom of the liquid collecting hopper (31), wherein the liquid collecting hopper (31) and the conical filter plate (32) are sleeved on the outside of the transmission shaft (4), wherein the liquid collecting hopper (31) is located on the upper side of the conical filter plate (32), wherein the top of the liquid collecting hopper (31) is fixed to the inner wall of the sedimentation cylinder (1), wherein the bottom of the conical filter plate (32) is fixedly connected to an oil sludge box (34) of an annular structure, wherein the oil sludge box (34) is fixed to the inner wall of the sedimentation cylinder (1).

2. The waste lubricating oil rapid natural sedimentation device according to claim 1, characterized in that: Annular flow-blocking strips (36) are evenly distributed inside the liquid collecting hopper (31) and on the outer surface of the conical filter plate (32).

3. The waste lubricating oil rapid natural sedimentation device according to claim 2, characterized in that: An upper scraper strip (35) is symmetrically fixed in the liquid collecting bucket (31), and the upper scraper strip (35) is in contact with the inner wall of the liquid collecting bucket (31). A bayonet matching the flow blocking strip (36) is provided on the contact surface between the upper scraper strip (35) and the liquid collecting bucket (31), and the two upper scrapers (35) are fixed to the transmission shaft (4).

4. A waste lubricating oil rapid natural sedimentation device according to claim 3, characterized in that: The conical filter plate (32) is symmetrically provided with lower scraping strips (33) on the outside, the lower scraping strips (33) are designed to fit the upper end surface of the conical filter plate (32), and the lower end surface of the lower scraping strips (33) is also provided with a bayonet that fits with the baffle strip (36), and the two lower scraping strips (33) are fixed to the transmission shaft (4).

5. A waste lubricating oil rapid natural sedimentation device according to claim 4, characterized in that: The top of the oil mud box (34) is open and corresponds to the lower edge of the conical filter plate (32), and the inner wall of the oil mud box (34) is provided with a filter hole that communicates with the inside of the oil mud box (34).

6. A waste lubricating oil rapid natural sedimentation device according to claim 5, characterized in that: The outside of the sedimentation cylinder (1) is screwed to a collecting box (11) at a position corresponding to the oil sludge box (34); a discharge port is provided on the inner wall of the sedimentation cylinder (1) between the collecting box (11) and the oil sludge box (34); a valve is built into the discharge port; a cleaning port (341) communicating with the inside of the oil sludge box (34) is provided on the side of the outside of the sedimentation cylinder (1) opposite to the collecting box (11); a valve is also provided inside the cleaning port (341); the collecting groove inside the oil sludge box (34) is opened at an inclined angle, with the collecting groove close to the collecting box (11) being the low point and close to the cleaning port (341) being the high point.

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