Filtering cyclone separation device for removing impurities in waste lubricating oil

Abstract

The invention discloses a filtering cyclone separation device for removing impurities in waste lubricating oil, and particularly relates to the technical field of lubricating oil treatment.The filtering cyclone separation device comprises a cyclone separation box body and an impurity removal part, the impurity removal part is installed above the cyclone separation box body in a lifting mode, and a bearing part used for collecting viscous substances is arranged on the outer side of the bottom of the impurity removal part; the magnetic column and adsorbed magnetic substances enter a recycling disc, the inner wall face of the landslide makes close contact with the surface of the magnetic column, then the magnetic column descends, the magnetic substances attached to the surface of the magnetic column are scraped off, viscous substances in waste lubricating oil are adsorbed, the viscosity of the lubricating oil is reduced, and low-pressure airflow is blown out of a center hole of the carclazyte roller in cooperation with a low-pressure airflow channel; by adopting the mode of firstly adsorbing and discharging the magnetic material and then adsorbing and discharging the viscous substance, the viscous substance is prevented from carrying the magnetic substance when being discharged, and staged treatment is carried out, so that cross contamination of the magnetic substance and the viscous substance is effectively prevented, and the quality of the treated lubricating oil is ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of lubricating oil treatment, and specifically provides a filtering cyclone separation device for removing impurities from waste lubricating oil. Background Art

[0002] Lubricating oil is used in various types of automobiles and mechanical equipment to reduce friction and protect machinery and processed parts. It is a liquid or semi-solid lubricant that mainly plays roles such as lubrication, auxiliary cooling, rust prevention, cleaning, sealing, and buffering. During the production process of lubricating oil, it is necessary to perform filtering cyclone separation on contaminated or used waste lubricating oil, so as to rationally utilize lubricating oil, reduce the waste rate of lubricating oil, and improve the utilization rate of lubricating oil.

[0003] After retrieval, the utility model patent with the publication number CN216320400U discloses a filtering cyclone separation device for removing impurities from waste lubricating oil. The filter plate can filter iron filings in the waste lubricating oil. By disassembling, replacing, and cleaning the filter plate, the filtering effect on lubricating oil is increased.

[0004] In the existing solution, when treating waste lubricating oil, magnetic substances are easily adhered to viscous substances, cross together, and are difficult to peel off, resulting in a weakened or even lost magnetic response, a significant decrease in the magnetic adsorption efficiency, blockage, and difficulty in separating through a conventional filter screen, leading to a decrease in the separation efficiency and affecting the purification quality and system stability. Summary of the Invention

[0005] The purpose of the present invention is to provide a filtering cyclone separation device for removing impurities from waste lubricating oil to solve the problems mentioned in the above background art.

[0006] The main technical problem to be solved by the present invention is: In the existing solution, magnetic substances are easily adhered to viscous substances, cross together, and are difficult to peel off, resulting in a weakened or even lost magnetic response, a significant decrease in the magnetic adsorption efficiency, blockage, and a decrease in the separation efficiency.

[0007] The present invention can be achieved through the following technical solutions: A filtering cyclone separation device for removing impurities from waste lubricating oil, including a cyclone separation box body, An impurity removal part, which is vertically installed above the cyclone separation box body, and a bearing part for collecting viscous substances is arranged on the outer side of its bottom; A fixed seat, which is fixedly arranged in the middle of the inner cavity of the impurity removal part; A through cavity, which is arranged at the bottom of the inner cavity of the impurity removal part, and an adsorption unit is arranged inside it; The adsorption unit includes two clay rollers that are meshed, and a low-pressure air flow channel that is used in cooperation with the central holes of the corresponding clay rollers is arranged inside the impurity removal part; A fixed disk is provided below two clay rollers. A rotating disk is rotatably provided on the bottom surface thereof, and the upper surface of the rotating disk passes through the fixed disk and is connected to a rotating cylinder. A plurality of rod bodies are provided inside the fixed seat to perform reciprocating lifting movements and adsorb magnetic substances. The bottom surface of the fixed seat is rotatably connected to a driving part that is in sliding contact with the rod bodies. A linkage unit is provided below the driving part to drive the rotating disk to rotate and block or communicate with the fixed disk. Each rod body includes a moving rod. A magnetic column is provided at the top of the moving rod, and a fitting part is provided on the bottom surface of the moving rod. A recycling disk for collecting magnetic substances is provided in the inner cavity of the impurity removal part. An electric gripper is provided inside the recycling disk, and the driving end of the electric gripper is connected to a landslide that is in close contact with the outer surface of the magnetic column. The adsorption unit further includes a discharge port provided on the outer surface of the impurity removal part and communicating with the through cavity. A scraper is provided on the top surface of the discharge port.

[0008] A further technical improvement of the invention lies in that: an inclined slideway is provided along the outlet direction of the discharge port on the outside of the impurity removal part.

[0009] A further technical improvement of the invention lies in that: the driving part includes a connecting part. A contact rod is provided on the outside of the connecting part, and one side of the end of the contact rod is in abutting contact with the fitting part. A blocking block is fixed on the outer surface of the moving rod. A first spring is sleeved above the blocking block, and the end of the first spring is fixed to the fixed seat.

[0010] A further technical improvement of the invention lies in that: the linkage unit includes an electric push rod provided in the middle of the bottom surface of the connecting part. Limit rods are provided on both sides of the electric push rod. The pushing end of the electric push rod is connected to a sliding plate that slides on the limit rods. A docking insertion rod that cooperates with the rotating cylinder is installed on the bottom surface of the sliding plate. A second spring is sleeved outside the limit rods, and the second spring is located between the lower end surface of the sliding plate and the limit rods.

[0011] A further technical improvement of the invention lies in that: a diversion guide plate is communicated above the fixed seat. The top of the diversion guide plate is of a conical structure. An impurity removal port communicating with the recycling disk is provided on the upper surface of the impurity removal part. A dispersion channel is provided between the recycling disk and the diversion guide plate.

[0012] A further technical improvement of the invention lies in that: a plurality of oil return inclined grooves that incline downward and lead into the through cavity are provided on the surface of the slideway.

[0013] A further technical improvement of the invention lies in that: a protective shell is provided outside the rotating cylinder. A blanking channel for guiding the waste lubricating oil for removing viscous substances into the clay roller is provided between the protective shell and the inner wall of the impurity removal part.

[0014] A further technical improvement of the present invention lies in that: a pleated portion is provided at the edge of the upper surface of the bearing portion, an airbag inflated and deflated by an air pump is provided inside the pleated portion, and a contact ring is provided at the upper end of the pleated portion.

[0015] A further technical improvement of the present invention lies in that: a number of small holes one are provided on the surface of the fixed disk, and a number of small holes two are provided on the surface of the rotating disk.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. When waste lubricating oil passes through, the magnetic column on the upper part of the rod body adsorbs magnetic substances in the waste lubricating oil and is subjected to an upward thrust. The magnetic column and the adsorbed magnetic substances enter the reuse tray. The inner wall surface of the landslide is in close contact with the surface of the magnetic column. Then the magnetic column descends, and the magnetic substances attached to the surface of the magnetic column are scraped off. At this time, the magnetic substances are collected in the return tray. The waste lubricating oil after magnetic removal enters the adsorption unit. The microporous network structure in the clay roller adsorbs the viscous substances in the waste lubricating oil, reducing the viscosity of the lubricating oil. The clay roller rotates and contacts the corresponding scraper to scrape off. The viscous substances slide down along the discharge port. Cooperating with the low-pressure air flow channel to blow low-pressure air into the central hole of the clay roller for back blowing cleaning and desorption regeneration, blowing out the viscous substances in the pores of the clay roller, directly blowing out towards the position of the discharge port, and the viscous substances in other positions fall on the fixed disk and are adsorbed again by the clay roller and reach the position of the scraper and are scraped off and discharged again. By first adsorbing and discharging magnetic materials and then adsorbing and discharging viscous substances, it avoids the magnetic substances being carried when the viscous substances are discharged, and is processed in stages, effectively preventing the cross-contamination of magnetic substances and viscous substances, and ensuring the quality of the processed lubricating oil. 2. By setting the linkage unit, when the electric push rod is pushed down, the docking plug rod is limited and inserted into the rotating cylinder to achieve clamping. The rotation of the connecting part drives the rotating cylinder to rotate, thereby changing the angle of the rotating disk. After rotating to the set angle, the connection with the rotating cylinder is disconnected, completing the two actions of blocking and discharging the waste lubricating oil. 3. After the airbag is inflated by the air pump, the pleated portion is straightened, increasing its height. The contact ring forms a seal with the bottom surface of the impurity removal portion, preventing the viscous substances from overflowing and carrying more viscous substances falling into the bearing portion. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] For the convenience of those skilled in the art to understand, the present invention will be further described below with reference to the accompanying drawings.

[0018] Figure 1 It is a schematic external structure diagram of the present invention; Figure 2 It is a schematic internal structure diagram of the impurity removal portion of the present invention; Figure 3 For the present invention Figure 2 The partial enlarged view at A in Figure 4 For the present invention Figure 2 Partial enlarged view at B in the present invention; Figure 5 Schematic three-dimensional structure diagram of the moving rod and the contact rod of the present invention; Figure 6 Schematic three-dimensional structure diagram of the fixed disk and the rotating disk of the present invention; Figure 7 For the present invention Figure 2 Partial enlarged view at C in the present invention.

[0019] In the figure: 1, cyclone separation box body; 2, impurity removal part; 3, bearing part; 4, shunt guide plate; 5, impurity removal port; 6, moving rod; 7, fixed seat; 8, contact rod; 9, rotating cylinder; 10, blanking channel; 11, fixed disk; 12, rotating disk; 13, through cavity; 14, blocking block; 15, first spring; 16, electric gripper; 17, landslide; 18, magnetic column; 19, dispersion channel; 20, connecting part; 21, electric push rod; 22, limiting rod; 23, sliding plate; 24, second spring; 25, docking plug; 26, fitting part; 27, clay roller; 28, scraper; 29, discharge port; 30, slideway; 31, oil return chute; 32, airbag; 33, contact ring. Specific embodiments

[0020] To further elaborate on the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the following will, in conjunction with the accompanying drawings and preferred embodiments, elaborate in detail on the specific embodiments, structures, features and their effects of the present invention.

[0021] Please refer to Figures 1-7 As shown, the present invention provides a filtration cyclone separation device for removing impurities from waste lubricating oil, including a cyclone separation box body 1 and an impurity removal part 2. The cyclone separation box body 1 and the impurity removal part 2 are arranged to move up and down, and the lifting is controlled by an oil cylinder, which is more stable and reliable. A bearing part 3 for collecting viscous substances is arranged on the outer side of the bottom of the impurity removal part 2, and a fixed seat 7 is fixedly arranged in the middle of the inner cavity of the impurity removal part 2. A through cavity 13 is arranged at the bottom of the inner cavity of the impurity removal part 2, and an adsorption unit is arranged inside the through cavity 13. The adsorption unit includes two clay rollers 27 meshed with each other. A central hole is arranged in the middle of the clay roller 27, and a low-pressure air flow channel matching with the central hole of the corresponding clay roller 27 is arranged inside the impurity removal part 2; A fixed disk 11 is arranged below the clay roller 27. A rotating disk 12 is rotatably arranged on the bottom surface of the fixed disk 11. The upper surface of the rotating disk 12 passes through the surface of the fixed disk 11 and is connected with a rotating cylinder 9. A plurality of rod bodies that reciprocate up and down and adsorb magnetic substances are arranged inside the fixed seat 7, and a driving part that is in sliding contact with the rod bodies is rotatably connected to the bottom surface of the fixed seat 7. A linkage unit that drives the rotating disk 12 to rotate and blocks or communicates with the fixed disk 11 is arranged below the driving part; The rod body includes a moving rod 6. A magnetic column 18 is provided at the top of the moving rod 6, and a fitting portion 26 is provided on the bottom surface of the moving rod 6; Above the inner cavity of the impurity removal portion 2, there is a recycling tray for collecting magnetic substances. An electric gripper 16 is provided inside the recycling tray. The driving end of the electric gripper 16 is connected to a landslide 17 that is in close contact with the outer surface of the magnetic column 18. The inner wall surface of the landslide 17 is an arc surface; The adsorption unit further includes a discharge port 29 provided on the outer surface of the impurity removal portion 2 and communicating with the through cavity 13. A scraper 28 is provided on the top surface of the discharge port 29; During use, the impurity removal portion 2 is in a connected and closed state with the cyclone separation box body 1, that is, the impurity removal portion 2 enters the cyclone separation box body 1 to ensure a constant temperature environment. The temperature of the waste lubricating oil is preheated to a set temperature (usually 80 degrees). It enters the fixed seat 7 through the hopper at the top of the impurity removal portion 2 for diversion, avoiding the concentrated accumulation of waste lubricating oil. The waste lubricating oil flows into the through cavity 13 and then enters the cyclone separation box body 1 for oil-water separation. The separated oil is on the upper layer and the water is on the lower layer. During the process of reaching the through cavity 13, several rod bodies are pushed by the driving portion. The magnetic column 18 on the upper part of the rod body adsorbs the magnetic substances in the flowing waste lubricating oil and is subjected to an upward thrust. In the initial state, the electric gripper 16 drives the landslide 17 to be in an open state, facilitating the entry of the magnetic column 18 and the adsorbed magnetic substances into the recycling tray; Then the electric gripper 16 drives the landslide 17 to close. At this time, the inner wall surface of the landslide 17 is in close contact with the surface of the magnetic column 18. When the fitting portion 26 at the bottom of the rod body is not subjected to the pushing force of the driving portion, it makes a descending reset movement, that is, drives the magnetic column 18 to descend, scraping off the magnetic substances attached to the surface of the magnetic column 18. At this time, the magnetic substances are collected in the return tray; It should be noted that during the rising process of the magnetic column 18, due to the action of gravity, it drips back into the dispersion channel 19 and will not carry waste lubricating oil into the return tray; The waste lubricating oil after magnetic removal enters the adsorption unit and is concentrated in the fixed disk 11. In this state, the rotating disk 12 seals the fixed disk 11, and the height of the waste lubricating oil does not exceed the height of the discharge port 29 to maintain a stable adsorption environment. The waste lubricating oil after magnetic removal enters the adsorption unit. Since the clay in the clay roller 27 has a microporous network structure, it adsorbs the viscous substances in the waste lubricating oil, reducing the viscosity of the lubricating oil. With the clay rollers 27 on both sides rotating in different directions (one clay roller 27 rotates clockwise and the other clay roller 27 rotates counterclockwise), the clay roller 27 contacts and scrapes with the corresponding scraper 28, and the viscous substances slide down along the discharge port 29; After scraping the surface of the fuller's earth roller 27, low-pressure air is blown through the low-pressure air passage into the central hole of the fuller's earth roller 27 for backwashing cleaning and desorption regeneration. The viscous substances in the pores of the fuller's earth roller 27 are blown out, directly blown towards the position of the discharge port 29, while the viscous substances at other positions fall on the fixed disk 11, and after being adsorbed again by the fuller's earth roller 27 and reaching the position of the scraper 28, they are scraped off and discharged again; Adopt the method of first adsorbing and discharging magnetic materials and then adsorbing and discharging viscous substances, avoid the magnetic substances being carried when the viscous substances are discharged, and carry out phased treatment, effectively preventing the cross-contamination between magnetic substances and viscous substances, and ensuring the quality of the treated lubricating oil; After that, the linkage unit drives the rotating disk 12 to rotate, so that the rotating disk 12 communicates with the fixed disk 11, and thus the waste lubricating oil on the fixed disk 11 is discharged and enters the cyclone separation box body 1 through the through cavity 13.

[0022] Refer to Figure 7 As shown in the figure, an inclined slideway 30 is arranged along the outlet direction of the discharge port 29 on the outside of the impurity removal part 2, and a plurality of oil return inclined grooves 31 which are inclined downward and lead into the through cavity 13 are arranged on the surface of the slideway 30; Among them, the viscous substances slide down along the slideway 30, and the lubricating oil carried in the viscous substances re-enters the through cavity 13 through the oil return inclined grooves 31; Refer to Figure 5 As shown in the figure, the driving part includes a connecting part 20, a contact rod 8 is arranged on the outside of the connecting part 20, and one side of the end of the contact rod 8 is in contact with the fitting part 26; When the contact rod 8 rotates with the connecting part 20, the contact rod 8 is in contact with the fitting part 26, so that the moving rod 6 rises, and thus the magnetic column 18 extends into the reuse disk; Refer to Figure 2 As shown in the figure, a blocking block 14 is fixed on the outer surface of the moving rod 6, a first spring 15 is sleeved above the blocking block 14, and the end of the first spring 15 is fixed to the fixed seat 7; When the contact rod 8 rotates, it drives the moving rod 6 to rise. At this time, the blocking block 14 rises and compresses the first spring 15, and the first spring 15 undergoes elastic deformation.

[0023] Refer to Figure 4 As shown in the figure, the linkage unit includes an electric push rod 21 arranged in the middle of the bottom surface of the connecting part 20. Limit rods 22 are arranged on both sides of the electric push rod 21. The pushing end of the electric push rod 21 is connected with a sliding plate 23 that slides on the limit rods 22. A docking plug rod 25 that is matched and clamped with the rotating cylinder 9 is installed on the bottom surface of the sliding plate 23. A second spring 24 is sleeved outside the limit rods 22, and the second spring 24 is located between the lower end surface of the sliding plate 23 and the limit rods 22; When the electric push rod 21 pushes downward, the sliding plate 23 therein slides directionally along the limiting rod 22. During this process, the second spring 24 is compressed. At this time, the docking plug rod 25 is inserted into the rotating cylinder 9 in a limited manner to achieve clamping connection. The rotation of the connecting part 20 drives the rotation of the rotating cylinder 9, thereby changing the angle of the rotating disk 12; Refer to Figure 2 As shown, a flow dividing guide plate 4 is communicated and provided above the fixed seat 7. The top of the flow dividing guide plate 4 is of a conical structure. An impurity removal port 5 communicating with the recycling tray is provided on the upper surface of the impurity removal part 2. A dispersion channel 19 is provided between the recycling tray and the flow dividing guide plate 4 to prevent the waste lubricating oil from accumulating concentratedly and facilitate the filtration of the impurities in the waste lubricating oil; A protective shell is provided outside the rotating cylinder 9. A blanking channel 10 for guiding the waste lubricating oil with sticky substances removed into the clay roller 27 is provided between the protective shell and the inner wall of the impurity removal part 2.

[0024] Refer to Figure 2 and Figure 7 As shown, a corrugated part is provided at the edge of the upper surface of the bearing part 3. An airbag 32 inflated and deflated by an air pump is provided inside the corrugated part, and a contact ring 33 is provided at the upper end of the corrugated part. The air pump inflates and deflates directionally through a solenoid valve; During use, after the airbag 32 is inflated by the air pump, the corrugated part is straightened, increasing its height. The contact ring 33 forms a seal with the bottom surface of the impurity removal part 2 to prevent the sticky substances from overflowing and bear more sticky substances falling into the bearing part 3.

[0025] Refer to Figure 6 As shown, a number of small holes one are provided on the surface of the fixed disk 11, and a number of small holes two are provided on the surface of the rotating disk 12. After the rotating disk 12 rotates, the hole positions of the small holes two and the corresponding small holes one are inconsistent, thereby completing the blocking of the waste lubricating oil by the fixed disk 11, and then quantitatively removing the sticky substances of the waste lubricating oil. After the sticky substances are removed, the small holes two and the small holes one coincide, and the waste lubricating oil enters the cyclone separation box body 1 through the rotating disk 12.

[0026] When the present invention is in use, when waste lubricating oil passes through, the magnetic column 18 on the upper part of the rod body adsorbs magnetic substances in the waste lubricating oil and receives an upward thrust. The magnetic column 18 and the adsorbed magnetic substances enter the recycling tray. The inner wall surface of the landslide 17 is in close contact with the surface of the magnetic column 18. Then the magnetic column 18 descends, and the magnetic substances attached to the surface of the magnetic column 18 are scraped off. At this time, the magnetic substances are collected in the return tray. The waste lubricating oil after magnetic removal enters the adsorption unit. The microporous network structure in the clay roller 27 adsorbs the viscous substances in the waste lubricating oil to reduce the viscosity of the lubricating oil. The clay roller 27 rotates and contacts the corresponding scraper 28 to be scraped off, and the viscous substances slide down along the discharge port 29; cooperating with the low-pressure air flow channel to blow low-pressure air into the central hole of the clay roller 27 for back blowing cleaning and desorption regeneration, and blowing out the viscous substances in the pores of the clay roller 27, directly blowing out towards the position of the discharge port 29, while the viscous substances in other positions fall on the fixed disk 11 and are adsorbed again by the clay roller 27 and reach the position of the scraper 28 and are scraped off and discharged again. By adopting the method of first adsorbing and discharging magnetic materials and then adsorbing and discharging viscous substances, it is avoided that magnetic substances are carried when viscous substances are discharged, and staged treatment is carried out, effectively preventing the cross-contamination of magnetic substances and viscous substances and ensuring the quality of the treated lubricating oil; By setting the linkage unit, when the electric push rod 21 is pushed down, the docking plug rod 25 is inserted into the rotating cylinder 9 in a limited manner to achieve clamping connection. The rotating cylinder 9 is driven to rotate by the rotation of the connecting part 20, thereby changing the angle of the rotating disk 12 to complete the plugging and discharging of the waste lubricating oil; After the airbag 32 is inflated by the air pump, the folded part is straightened, its height is increased, and the contact ring 33 forms a seal with the bottom surface of the impurity removal part 2 to prevent the viscous substances from overflowing and bear more viscous substances falling into the bearing part 3.

[0027] The above is only a preferred embodiment of the present invention, and it does not impose any form of limitation on the present invention. Although the present invention has been disclosed above with the preferred embodiment, it is not intended to limit the present invention. Any person skilled in the art can make some changes or modifications to the above-disclosed technical content to be equivalent embodiments with equivalent changes, but as long as it does not depart from the technical content of the present invention, any simple modification, equivalent change and modification made to the above embodiment according to the technical essence of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A filtering cyclone separation device for removing impurities in waste lubricating oil, characterized in that: It includes a cyclone separation box body (1). An impurity removal part (2) is installed above the cyclone separation box body (1) in a lifting manner, and a bearing part (3) for collecting viscous substances is arranged on the outer side of its bottom. A fixed seat (7) is fixedly arranged in the middle of the inner cavity of the impurity removal part (2). A through cavity (13) is arranged at the bottom of the inner cavity of the impurity removal part (2), and an adsorption unit is arranged inside it. The adsorption unit includes two clay rollers (27) arranged in a meshing manner, and a low-pressure air flow channel used in cooperation with the central holes of the corresponding clay rollers (27) is arranged inside the impurity removal part (2). A fixed disk (11) is arranged below the two clay rollers (27), and a rotating disk (12) is rotatably arranged on its bottom surface. A number of rod bodies are arranged inside the fixed seat (7) to perform reciprocating lifting movements and adsorb magnetic substances. A driving part in sliding contact with the rod bodies is rotatably connected to the bottom surface of the fixed seat (7), and a linkage unit for driving the rotating disk (12) to rotate and blocking or communicating with the fixed disk (11) is arranged below the driving part. Each rod body includes a moving rod (6). A magnetic column (18) is arranged at the top of the moving rod (6), and a fitting part (26) is arranged on the bottom surface of the moving rod (6). A recycling disk for collecting magnetic substances is arranged in the inner cavity of the impurity removal part (2), and an electric gripper (16) is arranged inside the recycling disk. The driving end of the electric gripper (16) is connected to a landslide (17) in close contact with the outer surface of the magnetic column (18). The adsorption unit further includes a discharge port (29) arranged on the outer surface of the impurity removal part (2) and communicated with the through cavity (13). A scraper (28) is arranged on the top surface of the discharge port (29).

2. The filtering cyclone separation device for removing impurities from waste lubricating oil according to claim 1, wherein, An inclined slideway (30) is arranged on the outer side of the impurity removal part (2) along the outlet direction of the discharge port (29).

3. The filtering cyclone separation device for removing impurities from waste lubricating oil according to claim 1, characterized in that, The driving part includes a connecting part (20). A contact rod (8) is arranged on the outer side of the connecting part (20), and one side of the end of the contact rod (8) is in abutting connection with the fitting part (26). A blocking block (14) is fixed on the outer surface of the moving rod (6). A first spring (15) is sleeved above the blocking block (14), and the end of the first spring (15) is fixed to the fixed seat (7).

4. A filtering cyclone separation device for removing impurities from waste lubricating oil according to claim 3, characterized in that, The upper surface of the rotating disk (12) passes through the fixed disk (11) and is connected to a rotating cylinder (9). The linkage unit includes an electric push rod (21) arranged in the middle of the bottom surface of the connecting part (20). Limiting rods (22) are arranged on both sides of the electric push rod (21). The pushing end of the electric push rod (21) is connected to a sliding plate (23) sliding on the limiting rods (22). A docking plug rod (25) cooperating and clamping with the rotating cylinder (9) is installed on the bottom surface of the sliding plate (23). A second spring (24) is sleeved outside the limiting rods (22), and the second spring (24) is located between the lower end surface of the sliding plate (23) and the limiting rods (22).

5. A filtering cyclone separation device for removing impurities from waste lubricating oil according to claim 1, characterized in that, A flow dividing guide plate (4) is communicated above the fixed seat (7). The top of the flow dividing guide plate (4) is of a conical structure. An impurity removal port (5) communicated with the recycling disk is arranged on the upper surface of the impurity removal part (2). A dispersion channel (19) is arranged between the recycling disk and the flow dividing guide plate (4).

6. The filtering cyclone separation device for removing impurities from waste lubricating oil according to claim 2, wherein, The surface of the slideway (30) is provided with a plurality of oil return inclined grooves (31) that are inclined downward and lead into the through cavity (13).

7. A filtering cyclone separation device for removing impurities from waste lubricating oil according to claim 1, characterized in that, A protective housing is provided outside the rotating cylinder (9), and a blanking channel (10) for guiding the waste lubricating oil removing viscous substances into the clay roll (27) is provided between the protective housing and the inner wall of the impurity removing part (2).

8. A filtering cyclone separation device for removing impurities from waste lubricating oil according to claim 1, characterized in that, A wrinkled part is provided at the upper surface edge of the bearing part (3), an airbag (32) inflated and deflated by an air pump is provided inside the wrinkled part, and a contact ring (33) is provided at the upper end of the wrinkled part.

9. A filtration cyclone separation device for removing impurities from waste lubricating oil according to claim 1, characterized in that, A number of small holes one are provided on the surface of the fixed disk (11), and a number of small holes two are provided on the surface of the rotating disk (12).

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