Processing device for waste mineral oil

Abstract

The invention discloses a processing device for waste mineral oil and relates to the technical field of environmental management. The outer circle of the filter screen is fixedly connected with the inner wall of the filter tank, a through hole is formed in the center of the filter screen and fixedly connected with a central pipe, the lower portion of the central pipe is welded to a bottom plate of the filter tank in a sealed mode, the central pipe penetrates through the bottom plate of the filter tank and extends downwards, a vertical hole is formed in the center of the central pipe, and a transverse pipe is arranged on the lower portion of the vertical hole of the central pipe. The transverse pipe is positioned outside the filtering tank. Compared with the prior art, the oil residue cleaning device has the beneficial effects that the filtered oil residue can be squeezed, waste mineral oil is recycled and discharged out of the filtering tank by utilizing the position change among the upper piston, the lower piston, the transverse piston and the filtering cylinder, the content of the waste mineral oil in the oil residue is reduced, an operator is not in contact with the oil residue in the cleaning process, and the oil residue cleaning device is clean and environment-friendly; the scraping plate vibrates up and down while rotating, so that the filter screen is prevented from being blocked under the action of the elastic steel wire brush, and the filtering efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of environmental governance and pollution control, and particularly to a processing device for waste mineral oil. Background Art

[0002] Waste mineral oil is the oil that is replaced when it can no longer be used due to being contaminated by impurities, oxidized, and affected by heat, which changes its original physical and chemical properties. The oil residues and filter media during the regeneration and processing of mineral oil should be strictly treated for recycling. Waste mineral oil contains trace amounts of alkanes, alkenes, benzene series substances, etc. Once it enters the external environment, it will cause serious environmental pollution; in order to manage the environment, it is necessary to treat trace amounts of alkanes, alkenes, benzene series substances, etc. in waste mineral oil.

[0003] Publication No. CN 116550036 B discloses a waste mineral oil filtration and sedimentation device. By setting a feeding assembly composed of a first automatic opening and closing part and a feeding port, a discharging assembly composed of a second automatic opening and closing part and a discharging port, and cooperating with a slag discharging plate and a fixed cylinder, the waste residue can be automatically collected and treated while filtering the mineral oil, effectively improving the processing speed of waste mineral oil and solving the problem that the existing manual cleaning method affects the processing efficiency of waste mineral oil. However, in this technical solution, a cleaning mechanism is set. The brush 911 on the surface of the bottom plate 91 can pass upward through the mesh holes on the surface of the filter mesh plate 5, which can effectively prevent the filter mesh plate 5 from being blocked and improve the filtering and slag removal effect of the filter mesh plate 5 on waste mineral oil. Since the brush can pass through the mesh holes of the filter plate 5, when the brush leaves this part of the filter plate, impurities can also pass through the filter plate from the mesh holes, reducing the filtering accuracy and needing to be improved. Summary of the Invention

[0004] In order to solve the problem of low filtering accuracy in the current regeneration and processing of waste mineral oil, the present invention provides a processing device for waste mineral oil.

[0005] The technical solution provided by the present invention is: a processing device for waste mineral oil, including a filtration tank. The filtration tank is a cylindrical vertical container. An inlet pipe is provided at the upper part of the filtration tank, and an outlet pipe is provided at the lower part. A filter net is installed inside the filtration tank. The filter net is in a funnel-shaped structure, that is, the outer circle of the filter net slopes downward to the center. The outer circle of the filter net is fixedly connected to the inner wall of the filtration tank. A through hole is opened at the center of the filter net and fixedly connected to a central pipe. The lower part of the central pipe is hermetically welded to the bottom plate of the filtration tank. The central pipe extends downward through the bottom plate of the filtration tank. A vertical hole is opened at the center of the central pipe. A horizontal pipe is provided at the lower part of the vertical hole of the central pipe. The horizontal pipe is located outside the filtration tank. The horizontal pipe intersects and communicates with the vertical pipe and has the same diameter; An upper piston is provided above the central tube, the upper part of the upper piston is fixedly connected to the plunger of the oil cylinder, the oil cylinder is fixedly connected to the upper bracket, the upper bracket is fixedly connected to the upper part of the filter tank, a sealing ring is provided on the outer circle of the upper piston, the upper piston and the vertical hole are gap-matched, a lower piston is provided at the lower end of the vertical hole, the lower piston and the vertical hole are gap-matched through the sealing ring, the lower part of the lower piston is fixedly connected to the electric push rod, the lower part of the electric push rod is fixedly connected to the lower bracket, the lower bracket is fixedly connected to the bottom of the filter tank, a transverse piston is provided in the transverse tube, and the transverse piston and the transverse tube are gap-matched; The vertical hole is provided with an annular groove above the bottom plate of the filter tank, the center tube is provided with windows which are connected inside and outside at the annular groove, the windows are evenly distributed around the circumference, and a filter cartridge is installed in the annular groove.

[0006] A scraper is provided on the upper part of the filter screen, and a wire brush is welded on the bottom of the scraper. The upper part of the scraper is fixedly connected to a lifting sleeve, which is sleeved on the outside of the cylinder plunger. The lifting sleeve extends upward and extends out of the filter tank. The lifting sleeve is rotatably connected to the top plate of the filter tank through a nylon sleeve. A step is provided on the upper part of the nylon sleeve and falls on the top plate of the filter tank. A gear ring is processed on the outer circle of the top of the lifting sleeve, and a motor is installed on the top plate of the filter tank. The motor shaft is fixedly connected to the gear, and the gear and the gear ring are meshed and transmitted. The gear ring and the nylon sleeve are rotatably connected through a thrust bearing.

[0007] The upper part of the upper piston is fixedly connected to the plunger of the oil cylinder, and is replaced by: the upper part of the upper piston is fixedly connected to the push rod, the upper part of the push rod is fixedly connected to the plunger of the oil cylinder, the diameter of the push rod is larger than the plunger of the oil cylinder, a vibration cap is sleeved on the upper part of the push rod, the inner hole of the vibration cap is matched with the clearance of the plunger of the oil cylinder, the outer side of the vibration cap falls on the top of the lifting sleeve, and the vibration cap and the lifting sleeve are welded together; The gear ring and the nylon sleeve are rotationally connected through a thrust bearing, which is replaced by a compression spring installed between the upper steel ring of the thrust bearing and the gear ring.

[0008] The discharge pipe is sealed and threadedly connected to the adsorption tube, and the adsorption tube is filled with high-efficiency activated carbon.

[0009] The beneficial effects of the present invention are as follows: by changing the positions of the upper piston, the lower piston, the transverse piston and the filter cylinder, the filtered oil residue can be squeezed, the waste mineral oil can be recovered and the cleaning work of the filter tank can be discharged, and the content of waste mineral oil in the oil residue can be reduced. During the cleaning process, the operator does not contact the oil residue, which is clean and environmentally friendly. The scraper vibrates up and down while rotating, and the filter screen is prevented from being blocked under the action of the elastic wire brush. A filter screen with a higher mesh number can be used, which improves the filtering accuracy and efficiency. At the same time, the present application uses high-efficiency activated carbon, which absorbs and separates olefins, benzene series, etc. in waste mineral oil to prevent environmental pollution and reduce the pressure of environmental governance. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Attached Figure 1 It is a schematic diagram of the structure of the present invention; AttachedFigure 2 It is an enlarged view of part A which is attached Figure 1 ; The attached Figure 3 is a schematic structural view of the slag pressing in the present invention; The attached Figure 4 is a schematic structural view of the slag falling in the present invention; The attached Figure 5 is a schematic structural view of the slag discharging in the present invention; The attached Figure 6 is a schematic structural view of the central pipe in the present invention.

[0011] In the figure, 1 is a filter tank, 2 is a filter screen, 3 is a scraper, 4 is a wire brush, 5 is a central pipe, 501 is a ring groove, 502 is a window, 503 is a vertical hole, 504 is a horizontal pipe, 6 is an electric push rod, 7 is a lower piston, 8 is a thrust bearing, 9 is a horizontal piston, 10 is a filter cylinder, 11 is an upper piston, 12 is a lifting sleeve, 13 is an oil cylinder, 14 is an upper bracket, 15 is a lower bracket, 16 is a vibration cap, 17 is a push rod, 18 is a plunger, 19 is a feed pipe, 20 is a discharge pipe, 21 is an adsorption pipe, 22 is a motor, 23 is a nylon sleeve, 24 is a gear, 25 is a gear ring. Specific embodiments

[0012] As Figures 1 to 6 shown, a processing device for waste mineral oil includes a filter tank 1. The filter tank 1 is a cylindrical vertical container. The upper part of the filter tank 1 is provided with a feed pipe 19, and the lower part is provided with a discharge pipe 20. A filter screen 2 is installed in the filter tank 1. The filter screen 2 is in a funnel-shaped structure, that is, the outer circle of the filter screen 2 slopes downward from the outer circle to the center. The outer circle of the filter screen 2 is fixedly connected to the inner wall of the filter tank 1. A through hole is opened in the center of the filter screen 2 and fixedly connected to the central pipe 5. The lower part of the central pipe 5 is hermetically welded to the bottom plate of the filter tank 1. The central pipe 5 extends downward through the bottom plate of the filter tank 1. A vertical hole 503 is opened in the center of the central pipe 5. A section of horizontal pipe 504 is provided below the vertical hole 503 of the central pipe 5. The horizontal pipe 504 is located outside the filter tank 1. The horizontal pipe 504 intersects and communicates with the vertical pipe 503 and has the same diameter; An upper piston 11 is provided above the central pipe 5. The upper part of the upper piston 11 is fixedly connected to the plunger 18 of the oil cylinder 13. The oil cylinder 13 is fixedly connected to the upper bracket 14. The upper bracket 14 is fixedly connected to the upper part of the filter tank 1. A sealing ring is provided on the outer circle of the upper piston 11. The upper piston 11 is in clearance fit with the vertical hole 503. A lower piston 7 is provided at the lower end of the vertical hole 503. The lower piston 7 is in clearance fit with the vertical hole 503 through a sealing ring. The lower part of the lower piston 7 is fixedly connected to the electric push rod 6. The lower part of the electric push rod 6 is fixedly connected to the lower bracket 15. The lower bracket 15 is fixedly connected to the bottom of the filter tank 1. A horizontal piston 9 is provided in the horizontal pipe 504. The horizontal piston 9 is in clearance fit with the horizontal pipe 504; The vertical hole 503 has an annular groove 501 above the bottom plate of the filter tank 1 , and the central tube 5 has windows 502 that penetrate inside and outside at the annular groove 503 . The windows 502 are evenly distributed around the circumference, and the filter cartridge 10 is installed in the annular groove 501 .

[0013] When filtering, the lower piston 7 rises to the position above the horizontal tube 504, and the upper piston 11 is located above the central tube 5. The filtered oil residue falls into the vertical hole 503 along the conical slope of the filter screen 2. When it is necessary to clean the frying, the lower piston 7 rises to the lower edge of the annular groove 501, and the upper piston 11 descends into the vertical tube 503, moving downward to squeeze the oil residue. The waste mineral oil in the oil residue enters the filter tank 1 from the filter cartridge 10, thereby improving the utilization rate of the waste mineral oil. After the oil residue is squeezed, the upper piston 11 descends to below the lower edge of the annular groove 501 to ensure that the oil residue is cleaned. The filter tank 1 does not leak, and the lower piston 7 descends to the lower edge of the transverse tube 504. At this time, the oil residue falls on the transverse tube 504, pushing the transverse piston 9 to push the oil residue out to complete the cleaning of the oil residue. Thereafter, each returns to the initial position. By setting the position change between the upper piston 11, the lower piston 7, the transverse piston 9 and the filter cylinder 10, the filtered oil residue can be squeezed, the waste mineral oil can be recovered, and the cleaning work of the filter tank 1 can be completed, thereby reducing the content of waste mineral oil in the oil residue. During the cleaning process, the operator does not come into contact with the oil residue, which is clean and environmentally friendly.

[0014] A scraper 3 is provided on the upper part of the filter screen 2, and a wire brush 4 is welded to the bottom of the scraper 3. The upper part of the scraper 3 is fixedly connected to the lifting sleeve 12, and the lifting sleeve 12 is sleeved on the outside of the plunger 18 of the oil cylinder 13. The lifting sleeve 12 extends upward and extends out of the filter tank 1. The lifting sleeve 12 is rotatably connected to the top plate of the filter tank 1 through a nylon sleeve 23. A step is provided on the upper part of the nylon sleeve 23 and falls on the top plate of the filter tank 1. A gear ring 25 is processed on the outer circle of the top of the lifting sleeve 12, and a motor 22 is installed on the top plate of the filter tank 1. The shaft of the motor 22 is fixedly connected to a gear 24, and the gear 24 is meshed with the gear ring 25 for transmission connection. The gear ring 25 and the nylon sleeve 23 are rotatably connected through a thrust bearing 8.

[0015] The upper part of the upper piston 11 is fixedly connected to the plunger 18 of the oil cylinder 13, and is replaced by: the upper part of the upper piston 11 is fixedly connected to the push rod 17, the upper part of the push rod 17 is fixedly connected to the plunger 18 of the oil cylinder 13, the diameter of the push rod 17 is larger than the plunger 18 of the oil cylinder 13, and a vibration cap 16 is sleeved on the upper part of the push rod 17, the inner hole of the vibration cap 16 and the clearance of the plunger 18 of the oil cylinder 13 are matched, the outer side of the vibration cap 16 falls on the top of the lifting sleeve 12, and the vibration cap 16 and the lifting sleeve 12 are welded together; A compression spring is installed between the upper steel ring of the thrust bearing 8 and the gear ring 25 .

[0016] The motor 22 drives the gear 24, the gear ring 25, the lifting sleeve 12 and the scraper 3 to rotate. The wire brush 4 scrapes off the oil residue adhering to the filter screen 2 to separate it from the filter screen 2. At the same time, the plunger 18 of the oil cylinder 13 moves up and down in pulses, and the ejector rod 17 moves up and down. Since the lifting sleeve 12 is elastically connected to the filter tank 1 up and down, the lifting sleeve 12, the scraper 3 and the wire brush 4 vibrate up and down. The scraper 3 vibrates up and down while rotating. Under the action of the elastic wire brush 4, the filter screen 2 is prevented from being blocked, and the filtration efficiency is improved.

[0017] The discharge pipe 20 is hermetically threadedly connected to the adsorption pipe 21. The adsorption pipe 21 is filled with high-efficiency activated carbon. The high-efficiency activated carbon adsorbs and separates olefins, benzene series, etc. in the waste mineral oil, prevents environmental pollution and reduces the environmental governance pressure.

Claims

1. A processing device for waste mineral oil, comprising a filter tank (1), characterized in that: The filter tank (1) is a cylindrical vertical container. The filter tank (1) is provided with a feed pipe (19) at the top and a discharge pipe (20) at the bottom. A filter screen (2) is installed in the filter tank (1). The filter screen (2) is a funnel-shaped structure, that is, the outer circle of the filter screen (2) is a downwardly inclined structure from the center to the center. The outer circle of the filter screen (2) is fixedly connected to the inner wall of the filter tank (1). A through hole is opened in the center of the filter screen (2) and fixedly connected to a central tube (5). The lower part of the central tube (5) is sealed and welded to the bottom plate of the filter tank (1). The central tube (5) passes through the bottom plate of the filter tank (1) and extends downward. A vertical hole (503) is opened in the center of the central tube (5). A section of a transverse tube (504) is provided on the lower part of the central tube (5) at the bottom of the vertical hole (503). The transverse tube (504) is located outside the filter tank (1). The transverse tube (504) and the vertical tube (503) are cross-connected and have the same diameter. An upper piston (11) is provided above the central tube (5). The upper part of the upper piston (11) is fixedly connected to the plunger (18) of the oil cylinder (13). The oil cylinder (13) is fixedly connected to the upper bracket (14). The upper bracket (14) is fixedly connected to the upper part of the filter tank (1). A sealing ring is provided on the outer circle of the upper piston (11). The upper piston (11) and the vertical hole (503) are clearance-matched. A lower piston (7) is provided at the lower end of the vertical hole (503). The lower piston (7) and the vertical hole (503) are clearance-matched through the sealing ring. The lower part of the lower piston (7) is fixedly connected to the electric push rod (6). The lower part of the electric push rod (6) is fixedly connected to the lower bracket (15). The lower bracket (15) is fixedly connected to the bottom of the filter tank (1). A transverse piston (9) is provided in the transverse tube (504). The transverse piston (9) and the transverse tube (504) are clearance-matched. The vertical hole (503) is provided with an annular groove (501) above the bottom plate of the filter tank (1), and the central tube (5) is provided with windows (502) that penetrate inside and outside at the annular groove (503). The windows (502) are evenly distributed around the circumference, and a filter cartridge (10) is installed in the annular groove (501).

2. A processing device for waste mineral oil according to claim 1, characterized in that: A scraper (3) is provided on the top of the filter screen (2). A wire brush (4) is welded to the bottom of the scraper (3). The top of the scraper (3) is fixedly connected to a lifting sleeve (12). The lifting sleeve (12) is sleeved on the outside of a plunger (18) of an oil cylinder (13). The lifting sleeve (12) extends upward and extends out of the filter tank (1). The lifting sleeve (12) is rotatably connected to the top plate of the filter tank (1) via a nylon sleeve (23). The top of the nylon sleeve (23) is provided with a step that falls on the top plate of the filter tank (1). A gear ring (25) is machined on the outer circle of the top of the lifting sleeve (12). A motor (22) is installed on the top plate of the filter tank (1). The shaft of the motor (22) is fixedly connected to a gear (24). The gear (24) is meshed and transmission-connected with the gear ring (25). The gear ring (25) and the nylon sleeve (23) are rotatably connected via a thrust bearing (8).

3. A processing device for waste mineral oil according to claim 1, characterized in that: The upper part of the upper piston (11) is fixedly connected to the plunger (18) of the oil cylinder (13), and is replaced by: the upper part of the upper piston (11) is fixedly connected to the push rod (17), the upper part of the push rod (17) is fixedly connected to the plunger (18) of the oil cylinder (13), the diameter of the push rod (17) is larger than the plunger (18) of the oil cylinder (13), a vibration cap (16) is sleeved on the upper part of the push rod (17), the inner hole of the vibration cap (16) and the plunger (18) of the oil cylinder (13) are clearance-matched, the outer side of the vibration cap (16) falls on the top of the lifting sleeve (12), and the vibration cap (16) and the lifting sleeve (12) are welded together; A compression spring is installed between the upper steel ring of the thrust bearing (8) and the gear ring (25).

4. A processing device for waste mineral oil according to claim 1, characterized in that: The discharge pipe (20) is sealed and threadedly connected to the adsorption tube (21), and the adsorption tube (21) is filled with high-efficiency activated carbon.

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