A waste lubricating oil solid impurity diversion device
By introducing a spiral blade structure guide plate and multi-layer filter plate filtration into the lubricating oil separator, the problems of poor filtration effect and easy clogging of existing devices are solved, achieving efficient and precise filtration of lubricating oil and reducing maintenance frequency and cost.
Patent Information
- Application Number
- CN202522396205.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-12
- Publication Date
- 2026-11-06
- Estimated Expiration
- 2035-11-12
AI Technical Summary
Existing lubricating oil impurity separation devices have simple structures, and the filtration effect is poor with only a single filter screen or filter bag. They are prone to clogging and cannot meet the requirements of high-precision separation. In addition, frequent replacement of filter screens or filter bags increases costs and maintenance workload.
The lubricating oil is initially filtered using a spiral blade structure guide plate, and then the mesh size of several filter plates gradually increases to achieve precision filtration. Impurities are temporarily retained in the temporary grooves on the spiral blade structure guide plate, and the oil is filtered layer by layer through multiple filter plates.
It achieves highly efficient and precise filtration of lubricating oil, reduces the risk of clogging, lowers maintenance frequency and cost, and improves filtration efficiency.
Smart Images

Figure CN224937751U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of lubricating oil filtration technology, specifically to a waste lubricating oil solid impurity diversion device. Background Technology
[0002] Lubricating oil plays a vital role in the daily operation of industrial production and machinery. It effectively reduces friction and wear between mechanical parts, lowers energy loss, and extends equipment lifespan. However, with prolonged use, lubricating oil inevitably deteriorates due to various factors and accumulates a large amount of solid impurities, such as metal shavings, dust, and sludge. These solid impurities not only further exacerbate wear on mechanical parts and affect normal equipment operation but may also clog oil passages, leading to equipment malfunctions and even safety accidents. Therefore, timely and effective separation and treatment of solid impurities in waste lubricating oil is a key step in achieving lubricating oil recycling and ensuring the safe and stable operation of equipment.
[0003] Currently, although there are some devices on the market for separating impurities in lubricating oil, these devices still have many shortcomings in practical applications. Some devices have relatively simple structures and only use a single filtration method, such as simple filter screens or filter bags. This method is not effective in separating impurities with small particle sizes and cannot meet the requirements of high-precision separation. Moreover, as the usage time increases, the filter screens or filter bags are easily clogged by impurities, resulting in a significant decrease in filtration efficiency. Frequent replacement of filter screens or filter bags is required, which increases the cost of use and maintenance workload. Utility Model Content
[0004] The technical problem this invention aims to solve is that existing devices for separating impurities from lubricating oil have simple structures, using only a single filter screen or filter bag. These devices are poor at separating small-diameter impurities, are prone to clogging, leading to reduced filtration efficiency, frequent replacements, and increased costs and maintenance.
[0005] To solve the above problems, the technical solution adopted by this utility model is a waste lubricating oil solid impurity diversion device, including a base structure, a cylindrical cover on the top of the base structure, and a filter tank inside the base structure.
[0006] The base structure includes several support frames for support. A support cylinder is fixed inside the support frame. A conical shroud is fixed at the top of the support cylinder. A connecting tank is fixed inside the conical shroud. A spiral blade baffle is fixed between the connecting tank and the cylindrical shroud for preliminary filtration of the lubricating oil. A support platform is fixed at the bottom inside the support cylinder. A pump is fixed above the support platform for conveying the pre-filtered lubricating oil.
[0007] A connecting platform is fixed to the bottom of the outer side of the filter tank, and a conveying pipe is connected to the top of the filter tank. The conveying pipe is spirally wound around the outside of the filter tank, and the bottom end of the conveying pipe passes through the connecting platform and is connected to the output end of the pump. Several filter plates are fixed obliquely inside the filter tank, which can perform precision filtration of lubricating oil. An output pipe is provided at the bottom of the filter tank, which can output the finely filtered lubricating oil.
[0008] As a further embodiment of this utility model: a vent is provided at the bottom of the conical shroud, and a connecting pipe is provided between the bottom of the vent and the input end of the pump to facilitate the pumping of the pre-filtered lubricating oil into the filter tank.
[0009] As a further embodiment of this utility model: the mesh size of several filter plates gradually increases from top to bottom, which enables the solid impurities inside the lubricating oil to be filtered layer by layer, thereby achieving precision filtration.
[0010] As a further embodiment of this utility model, the spiral blade structure guide plate has several temporary retention grooves on its side, which can temporarily retain solid impurities inside the unfiltered lubricating oil, facilitating preliminary filtration.
[0011] As a further embodiment of this utility model: a cover top is fixed at the top of the cylindrical cover, and an inlet is provided at the top of the cover top for inputting unfiltered lubricating oil.
[0012] As a further embodiment of this utility model, the connecting platform and the bottom of the connecting tank are connected and fixed by a number of screws, which facilitates quick disassembly of the filter tank and makes maintenance easier.
[0013] Compared with the prior art, the advantages of this utility model are as follows: This application adds a spiral blade structure guide plate, which can temporarily retain solid impurities in the lubricating oil through the temporary retention tank, so as to facilitate preliminary filtration. Furthermore, the spiral arrangement can reduce the floor space, and the addition of a filter tank, by setting several filter plates, can perform precision filtration on the pre-filtered lubricating oil, so as to achieve the diversion of clear lubricating fluid. Attached Figure Description
[0014] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:
[0015] Figure 1 This is a three-dimensional view of the overall structure of a waste lubricating oil solid impurity diversion device according to the present invention.
[0016] Figure 2 This is a partial structural cross-sectional view of a waste lubricating oil solid impurity diversion device according to the present invention.
[0017] Figure 3This is a cross-sectional view of the overall structure of a waste lubricating oil solid impurity diversion device according to the present invention.
[0018] Figure 4 This is a perspective view of the filter tank structure in a waste lubricating oil solid impurity diversion device according to the present invention.
[0019] In the attached image:
[0020] 1. Cylindrical hood; 2. Filter tank; 3. Support frame; 4. Support cylinder; 5. Conical hood platform; 6. Connecting tank; 7. Spiral blade structure guide plate; 8. Support platform; 9. Pump; 10. Connecting platform; 11. Conveying pipe; 12. Filter plate; 13. Output pipe; 14. Connecting pipe; 15. Top of hood; 16. Inlet; 5.1. Leakage outlet. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0022] This utility model provides a technical solution to address the existing problems mentioned in the background art.
[0023] Combined with appendix Figure 1-3 It can be seen that the structure includes a base structure, a cylindrical cover 1) on top of the base structure, a filter tank 2) inside the base structure, a cover top 16) fixed at the top of the cylindrical cover 1), and a feed inlet 17) at the top of the cover top 16) for inputting unfiltered lubricating oil; the base structure includes several support frames 3) for support, a support cylinder 4) fixed inside the support frame 3), a conical cover platform 5) fixed at the top of the support cylinder 4), a connecting tank 6) fixed inside the conical cover platform 5), a spiral blade structure guide plate 7) fixed between the connecting tank 6) and the cylindrical cover 1), and several temporary retention slots on the upper side of the spiral blade structure guide plate 7) to temporarily retain solid impurities inside the unfiltered lubricating oil for preliminary filtration; a support platform 8) fixed at the bottom of the inner side of the support cylinder 4), and a pump 9) fixed above the support platform 8) for conveying the pre-filtered lubricating oil;
[0024] Combined with appendix Figure 3 , 4It can be seen that a connecting platform 10) is fixed to the bottom of the outer side of the filter tank 2). The connecting platform 10) is connected to the bottom of the connecting tank 6) by several screws, which facilitates the quick disassembly of the filter tank 2) and makes maintenance easier. A conveying pipe 11) is connected to the top of the filter tank 2). The conveying pipe 11) is spirally wound around the outside of the filter tank 2). The bottom of the conveying pipe 11) passes through the connecting platform 10) and is connected to the output end of the pump 9). Four filter plates 12) are fixed obliquely inside the filter tank 2). The filtration mesh of the four filter plates 12 gradually increases from top to bottom, which can filter the solid impurities inside the lubricating oil layer by layer, achieving precision filtration. The bottom of the filter tank 2) is provided with an output pipe 13, which can output the finely filtered lubricating oil. The bottom of the conical cover 5) is provided with a leak 5.1). The bottom of the leak 5.1) is connected to the input end of the pump 9 by a connecting pipe 15, which facilitates the pump 9 to deliver the pre-filtered lubricating oil into the filter tank 2).
[0025] The working principle of this application is as follows: When performing waste lubricating oil diversion filtration, the waste lubricating oil is first fed from the inlet 16) into the spiral blade structure guide plate 7) between the cylindrical cover 1) and the connecting tank 6). The solid impurities inside the waste lubricating oil are initially filtered through several temporary retention tanks. The lubricating oil after initial filtration is transported through the leak 5.1) and the connecting pipe 14) and the pump 9) and then transported to the top of the filter tank 2) through the conveying pipe 11). Then it can be precisely filtered through several filter plates 12) and finally output from the output pipe 13, thus realizing the diversion filtration of waste lubricating oil.
[0026] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.
Claims
1. A waste lubricating oil solid impurity diversion device, characterized in that: It includes a base structure, with a cylindrical cover (1) on top of the base structure and a filter tank (2) inside the base structure; The base structure includes several support frames (3), a support cylinder (4) is fixed inside the support frame (3), a conical hood platform (5) is fixed at the top of the support cylinder (4), a connecting tank (6) is fixed inside the conical hood platform (5), a spiral blade structure guide plate (7) is fixed between the connecting tank (6) and the cylindrical hood (1), a support platform (8) is fixed at the bottom inside the support cylinder (4), and a pump (9) is fixed above the support platform (8). A connecting platform (10) is fixed at the bottom of the outer side of the filter tank (2). A conveying pipe (11) is connected to the top of the filter tank (2). The conveying pipe (11) is spirally wound around the outside of the filter tank (2). The bottom end of the conveying pipe (11) passes through the connecting platform (10) and is connected to the output end of the pump (9). Several filter plates (12) are fixed obliquely inside the filter tank (2). An output pipe (13) is provided at the bottom of the filter tank (2).
2. The waste lubricating oil solid impurity diversion device according to claim 1, characterized in that: The conical cover (5) has a vent (5.1) at the bottom end, and a connecting pipe (14) is provided between the bottom end of the vent (5.1) and the input end of the pump (9).
3. The waste lubricating oil solid impurity diversion device according to claim 1, characterized in that: The mesh size of several filter plates (12) gradually increases from top to bottom.
4. The waste lubricating oil solid impurity diversion device according to claim 1, characterized in that: The upper side of the spiral blade structure guide plate (7) has several temporary storage slots.
5. The waste lubricating oil solid impurity diversion device according to claim 1, characterized in that: The top of the cylindrical cover (1) is fixed with a cover top (15), and the top of the cover top (15) is provided with a feed inlet (16).
6. The waste lubricating oil solid impurity diversion device according to claim 1, characterized in that: The connecting platform (10) and the bottom of the connecting tank (6) are connected and fixed by a number of screws.
