Waste oil recovery equipment for lubricating oil production
By combining a hemispherical filter inner liner and a permeable membrane for pressure filtration and brush cleaning, the problem of filtering fine particulate impurities in lubricating oil is solved, thereby improving the quality and recovery efficiency of lubricating oil.
Patent Information
- Application Number
- CN202520370263.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-05
- Publication Date
- 2026-01-13
- Estimated Expiration
- 2035-03-05
AI Technical Summary
Existing lubricating oil recovery equipment cannot effectively filter fine particulate impurities, leading to a decline in lubricating oil quality.
It adopts a combination of hemispherical filter inner tank and permeation membrane, combined with pressure filtration and brush cleaning, to achieve efficient interception and filtration of fine particulate impurities in lubricating oil.
It improves the filtration speed and recycling efficiency of lubricating oil, ensuring the quality of lubricating oil.
Smart Images

Figure CN223788338U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of lubricating oil processing technology, and in particular to a waste oil recycling device for lubricating oil production. Background Technology
[0002] Lubricating oil is a liquid or semi-solid lubricant used in various types of automobiles and mechanical equipment to reduce friction and protect machinery and processed parts. Its main functions include lubrication, auxiliary cooling, rust prevention, cleaning, sealing and buffering.
[0003] During the production of lubricating oil, errors in processing or malfunctions in mechanical equipment can render the lubricating oil unusable. In such cases, it is necessary to recycle and reprocess the lubricating oil for reuse. However, most existing recycling equipment typically uses a filter screen to intercept impurities during the lubricating oil filtration process. This method cannot filter out finer particulate impurities in the lubricating oil, thus causing a decline in the quality of the lubricating oil. Therefore, a waste oil recycling device for lubricating oil production is proposed to solve the above problems. Utility Model Content
[0004] The purpose of this utility model is to at least solve one of the technical problems existing in the prior art, and to provide a waste oil recycling device for lubricating oil production. This device can solve the problem that lubricating oil becomes unusable due to processing errors or mechanical equipment failures during the production process. In this case, it is necessary to recycle and reprocess the lubricating oil for reuse. However, most existing recycling devices usually use a filter screen to intercept impurities in the lubricating oil during the filtration process. This method cannot filter out fine particulate impurities in the lubricating oil, thus causing a decline in the quality of the lubricating oil.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a waste oil recycling device for lubricating oil production, comprising a recycling tank and a support, wherein the recycling tank is fixedly connected to the support, an mounting plate is fixedly connected to one side of the support, a circulation pump is fixedly connected to the mounting plate, the inlet of the circulation pump is connected to the interior of the recycling tank, and the outlet of the circulation pump is connected to an external receiving device.
[0006] A motor is fixedly connected to the top of the recycling tank, and a pressure pipe and a pressure relief valve are also fixedly connected to the top of the recycling tank.
[0007] The pressure relief valve is internally connected to the recovery tank;
[0008] The recovery tank is equipped with a filter mechanism inside, and an oil injection pipe is fixedly connected to the surface of the recovery tank.
[0009] Preferably, the filtration mechanism includes a filter inner liner, which is fixedly connected inside the recovery tank. The oil injection pipe and the pressurization pipe are both connected to the filter inner liner. A drain pipe is fixedly connected to the bottom of the recovery tank, and the drain pipe is connected to the bottom of the filter inner liner.
[0010] The bottom of the filter liner is hemispherical, and a permeation membrane is fixedly connected inside the hemispherical filter liner.
[0011] Preferably, the filter liner is a hemispherical shape with a hollowed-out surface at one end.
[0012] Preferably, the filter inner liner is rotatably connected to a rotating shaft, and the rotating shaft is fixedly connected to the output end of the motor;
[0013] A cleaning plate in the shape of a "7" is fixedly connected to the rotating shaft, and a brush is fixedly connected to one side of the vertical plate of the cleaning plate;
[0014] The brush is attached to the surface of the filter inner tank and the permeation membrane.
[0015] Preferably, the sewage pipe is equipped with a valve.
[0016] Preferably, a flange is fixedly connected to one end of both the oil injection pipe and the pressurization pipe.
[0017] Compared with the prior art, the beneficial effects of this utility model are:
[0018] This waste oil recycling equipment for lubricating oil production works by injecting waste lubricating oil into the filter inner tank. The lubricating oil then undergoes permeation filtration through a permeation membrane and the perforated surface of the filter inner tank, thus intercepting impurities. The filter inner tank is then pressurized through a pressurization pipe, increasing the filtration speed of the lubricating oil under increasing pressure, thereby improving the efficiency of lubricating oil recycling. Due to the small pore size of the permeation membrane, fine particulate impurities and colloids in the lubricating oil can be effectively intercepted and filtered, ensuring the subsequent quality of the lubricating oil.
[0019] This waste oil recycling equipment for lubricating oil production starts a motor during the filtration of waste lubricating oil. The motor's output drives the rotating shaft, cleaning plate, and brush to rotate together. Therefore, the brush can clean the impurities adhering to the surface of the permeation membrane, thereby preventing their accumulation and ensuring the permeation effect of the lubricating oil. Attached Figure Description
[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments:
[0021] Figure 1 This is a schematic diagram of a waste oil recycling device for lubricating oil production according to the present invention;
[0022] Figure 2 This is a schematic diagram of the internal structure of a waste oil recycling device for lubricating oil production according to this utility model;
[0023] Figure 3 This is a schematic diagram of the filter inner liner of this utility model.
[0024] Reference numerals: 1. Recovery tank; 2. Support; 3. Pressure relief valve; 4. Motor; 5. Pressurization pipe; 6. Oil injection pipe; 7. Mounting plate; 8. Circulation pump; 9. Drain pipe; 10. Valve; 11. Filter liner; 12. Rotating shaft; 13. Permeation membrane; 14. Cleaning plate; 15. Brush. Detailed Implementation
[0025] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.
[0026] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0027] In the description of this utility model, terms such as greater than, less than, and exceeding are understood to exclude the stated number, while terms such as above, below, and within are understood to include the stated number. The use of terms like "first" and "second" is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the quantity or sequence of the indicated technical features.
[0028] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.
[0029] Please see Figure 1-3 This utility model provides a technical solution: a waste oil recycling device for lubricating oil production, including a recycling tank 1 and a support 2. The recycling tank 1 is fixedly connected to the support 2. A mounting plate 7 is fixedly connected to one side of the support 2. A circulation pump 8 is fixedly connected to the mounting plate 7. The inlet of the circulation pump 8 is connected to the inside of the recycling tank 1, and the outlet of the circulation pump 8 is connected to an external receiving device.
[0030] A motor 4 is fixedly connected to the top of the recycling tank 1, and a pressure pipe 5 and a pressure relief valve 3 are fixedly connected to the top of the recycling tank 1.
[0031] Pressure relief valve 3 is internally connected to the recovery tank 1;
[0032] When the internal pressure of the recovery tank 1 is too high, the pressure relief valve 3 automatically relieves the pressure of the recovery tank 1;
[0033] The inside of the recovery tank 1 is equipped with a filter mechanism, and an oil injection pipe 6 is fixedly connected to the surface of the recovery tank 1.
[0034] When it is necessary to recycle waste lubricating oil, the oil injection pipe 6 can be connected to the external waste lubricating oil supply equipment. Therefore, the waste lubricating oil is injected into the filter mechanism through the oil injection pipe 6, and the impurities in the waste lubricating oil are filtered through the filter mechanism.
[0035] Furthermore, flanges are fixedly connected to one end of both the oil injection pipe 6 and the pressurization pipe 5, thus facilitating the connection and installation of the pipeline with external equipment.
[0036] Among them, the pressurization pipe 5 is connected to the external pressure supply equipment;
[0037] Furthermore, the filtration mechanism includes a filter inner liner 11, which is fixedly connected inside the recovery tank 1. The oil injection pipe 6 and the pressurization pipe 5 are both connected to the filter inner liner 11. A drain pipe 9 is fixedly connected to the bottom of the recovery tank 1, and the drain pipe 9 is connected to the bottom of the filter inner liner 11.
[0038] A valve 10 is installed on the sewage pipe 9;
[0039] The bottom of the filter inner liner 11 is a hemisphere, and a permeable membrane 13 is fixedly connected inside the hemisphere of the filter inner liner 11.
[0040] Among them, the filter inner liner 11 is a hemispherical shape with a hollowed-out surface at one end;
[0041] Among them, the permeation membrane 13 is a composite of a polyethersulfone membrane and a reverse osmosis membrane;
[0042] When waste lubricating oil is injected into the filter inner liner 11, the lubricating oil undergoes permeation filtration through the permeation membrane 13 and the perforated surface of the filter inner liner 11, thus allowing impurities to be intercepted by the permeation membrane 13. At this time, the pressure is increased by the pressure pipe 5 to increase the pressure of the filter inner liner 11, thereby increasing the filtration speed of the lubricating oil and improving the efficiency of lubricating oil recycling. Since the pore size of the permeation membrane 13 is small, it can effectively intercept and filter fine particulate impurities and colloids in the lubricating oil.
[0043] The filter inner liner 11 is rotatably connected to a rotating shaft 12, which is fixedly connected to the output end of the motor 4.
[0044] A cleaning plate 14 in the shape of a "7" is fixedly connected to the rotating shaft 12, and a brush 15 is fixedly connected to one side of the vertical plate of the cleaning plate 14.
[0045] The brush 15 is attached to the surfaces of the filter inner liner 11 and the permeation membrane 13;
[0046] During the filtration of waste lubricating oil, the motor 4 is started. The output end of the motor 4 drives the rotating shaft 12, the cleaning plate 14, and the brush 15 to rotate together. Therefore, the brush 15 can clean the impurities adhering to the surface of the permeation membrane 13, thereby preventing them from accumulating and ensuring the permeation effect of the lubricating oil. At the same time, when it is necessary to clean the impurities, it is only necessary to wait for the lubricating oil inside the filter inner tank 11 to permeate completely, and then open the valve 10 to open the drain pipe 9. Therefore, with the cleaning of the brush 15 and the hemispherical shape of the filter inner tank 11, the impurities are collected at the center of the bottom of the filter inner tank 11 and discharged through the drain pipe 9.
[0047] Working principle: When waste lubricating oil is injected into the filter inner liner 11, the lubricating oil undergoes permeation filtration through the permeation membrane 13 and the perforated surface of the filter inner liner 11, thus intercepting impurities. At this time, the pressure is increased through the pressure pipe 5 to pressurize the filter inner liner 11, thereby increasing the filtration speed of the lubricating oil under the continuously increasing high pressure, thereby improving the efficiency of lubricating oil recycling. Since the pore size of the permeation membrane 13 is small, it can effectively intercept and filter fine particulate impurities and colloids in the lubricating oil.
[0048] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.
Claims
1. A waste oil recovery apparatus for lubricating oil production, comprising a recovery tank (1) and a support (2), characterized in that: The recycling tank (1) is fixedly connected to the support (2), one side of the support (2) is fixedly connected to the mounting plate (7), the mounting plate (7) is fixedly connected to the circulating pump (8), the water inlet of the circulating pump (8) is in communication with the inside of the recycling tank (1), and the water outlet of the circulating pump (8) is in communication with an external taking device; The top of the recycling tank (1) is fixedly connected to the motor (4), and the top of the recycling tank (1) is fixedly connected to the pressurizing pipe (5) and the pressure relief valve (3); The pressure relief valve (3) is in communication with the inside of the recycling tank (1); The inside of the recycling tank (1) is provided with a filtering mechanism, and the surface of the recycling tank (1) is fixedly connected to the oil injection pipe (6).
2. The used oil recovery apparatus for lubricating oil production according to claim 1, characterized by: The filtering mechanism comprises a filtering inner container (11), the filtering inner container (11) is fixedly connected to the inside of the recycling tank (1), the oil injection pipe (6) and the pressurizing pipe (5) are in communication with the filtering inner container (11), the bottom of the recycling tank (1) is fixedly connected to the blowdown pipe (9), and the blowdown pipe (9) is in communication with the bottom of the filtering inner container (11); The bottom of the filtering inner container (11) is a hemisphere, and the inside of the filtering inner container (11) is fixedly connected to the osmotic membrane (13).
3. The used oil recovery apparatus for lubricating oil production according to claim 2, characterized by: The surface of one end of the filtering inner container (11) is in a hollow shape.
4. The used oil recovery apparatus for lubricating oil production according to claim 3, characterized by: The inside of the filtering inner container (11) is rotatably connected to the rotating shaft (12), and the rotating shaft (12) is fixedly connected to the output end of the motor (4); The rotating shaft (12) is fixedly connected to the cleaning plate (14) in the shape of "7", and the vertical plate of the cleaning plate (14) is fixedly connected to the brush (15); The brush (15) is attached to the surface of the filtering inner container (11) and the osmotic membrane (13).
5. The used oil recovery apparatus for lubricating oil production according to claim 2, characterized by: The blowdown pipe (9) is provided with the valve (10).
6. The used oil recovery apparatus for producing lubricating oil according to claim 1, characterized by: The oil injection pipe (6) and the pressurizing pipe (5) are fixedly connected to the flanges.