Waste lubricating oil regeneration tank
By using a combination of reverse osmosis membrane filter and electric heating rod in the waste lubricating oil regeneration equipment, the problem of incomplete filtration by the filter screen is solved, achieving efficient removal of solid impurities and moisture, and improving the regeneration quality of lubricating oil.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TIBET JIEKUN ENVIRONMENTAL PROTECTION TECHNOLOGY CO LTD
- Filing Date
- 2025-03-27
- Publication Date
- 2026-05-15
AI Technical Summary
Existing waste lubricating oil regeneration equipment has limited filter capacity during filtration, resulting in the lubricating oil still containing tiny solid impurities after filtration, which affects the regeneration effect.
The filter uses a reverse osmosis membrane cartridge, which allows only liquid to pass through while blocking solid impurities. Combined with an electric heating rod to heat and evaporate the water, and quicklime to absorb the water vapor, oil-water separation and impurity removal are achieved.
It achieves efficient filtration of waste lubricating oil, removing tiny solid impurities and moisture, and improving the purity and quality of recycled lubricating oil.
Smart Images

Figure CN224243020U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of waste lubricating oil processing equipment, and in particular to a waste lubricating oil regeneration tank. 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. It is generally composed of two parts: base oil and additives. Lubricating oil is a technology-intensive product, a complex mixture of hydrocarbons, which mainly plays the roles of lubrication, cooling, rust prevention, cleaning, sealing and buffering.
[0003] Lubricating oil needs to be replaced regularly after prolonged use. The waste lubricating oil can be reused after regeneration. However, existing waste lubricating oil regeneration equipment requires filtration to remove solid impurities and moisture from the waste lubricating oil. However, existing waste lubricating oil regeneration equipment mostly uses filter screens to filter the waste lubricating oil. However, the filtration capacity of filter screens is limited, and the filtered waste lubricating oil contains residual solid impurities with small diameters, resulting in incomplete filtration. Therefore, in order to solve this problem, a waste lubricating oil regeneration tank is proposed. Utility Model Content
[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a waste lubricating oil regeneration tank.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A waste lubricating oil regeneration tank includes a tank body, on which a plurality of electric heating rods are installed. An installation cylinder is installed inside the tank body, and a reverse osmosis membrane filter element is installed inside the installation cylinder. The installation cylinder is connected to a feed port, the top of which is located above the tank body. The reverse osmosis membrane filter element is connected to a water outlet port, which is located between the installation cylinder and the tank body. The bottom end of the installation cylinder is connected to a drain port, the bottom end of which is located below the tank body. The bottom of the tank body is connected to a drainage port.
[0007] Preferably, the inner wall of the tank is provided with a plurality of strip plates arranged in a ring, and electric heating rods are installed on the sides of the strip plates.
[0008] Preferably, a fixing rod is installed on the top wall of the tank, and an annular collecting tray is installed at the bottom of the fixing rod, with quicklime loaded in the collecting tray.
[0009] Preferably, mounting bases are installed on both the top and bottom walls of the mounting cylinder, and the top and bottom ends of the reverse osmosis membrane filter element are respectively installed in two mounting bases.
[0010] Preferably, a maintenance window is provided on the top of the tank, and a filter element replacement window is provided on the top of the installation cylinder. Both the maintenance window and the filter element replacement window are equipped with a switch door.
[0011] Preferably, the bottom of the tank is provided with a plurality of support plates in a ring shape, and a support ring is provided at the bottom end of the support plates.
[0012] Preferably, the top of the support ring has a plurality of mounting holes in a ring shape, and the bottom of the support ring is fitted with an anti-slip rubber pad.
[0013] Preferably, an mounting block is installed on the side of the strip plate, an electric heating rod is installed on the side of the mounting block, and a collection tray is located above the electric heating rod.
[0014] Compared with the prior art, the beneficial effects of this utility model are:
[0015] 1. In this utility model, a reverse osmosis membrane filter element can be used to filter waste lubricating oil. The reverse osmosis membrane filter element only allows liquid (solvent) to pass through while blocking solute. The reverse osmosis membrane filter element can filter the solid impurities contained in the waste lubricating oil onto the outer surface of the reverse osmosis membrane filter element, thereby filtering the solid impurities in the waste lubricating oil between the installation cylinder and the reverse osmosis membrane filter element. Thus, the solid impurities in the waste lubricating oil can be filtered in one step, avoiding the problem of the waste lubricating oil containing tiny solid impurities after filtering with a traditional filter screen, which would affect the regeneration treatment of the waste lubricating oil.
[0016] 2: In this utility model, the waste lubricating oil between the tank and the mounting cylinder is allowed to stand. Since the density of water is greater than that of lubricating oil, the water in the waste lubricating oil will settle to the lower layer, while the lubricating oil will remain on the upper layer. At this time, the water in the lower layer of waste lubricating oil can be released through the drain port, thereby separating most of the water from the lubricating oil. The quicklime in the collection pan can absorb the water vapor, thus absorbing the water vapor generated by the evaporation of water in the waste lubricating oil, and improving the regeneration treatment of the waste lubricating oil. Attached Figure Description
[0017] Figure 1 This is a first-view structural schematic diagram of a waste lubricating oil regeneration tank proposed in this utility model.
[0018] Figure 2 This is a second-view structural schematic diagram of a waste lubricating oil regeneration tank proposed in this utility model.
[0019] Figure 3 This is a partial sectional view of the tank body of a waste lubricating oil regeneration tank proposed in this utility model;
[0020] Figure 4This is a partial sectional view of the mounting cylinder of a waste lubricating oil regeneration tank according to the present invention;
[0021] Figure 5 This is a schematic diagram showing the connection between the tank body and the strip plate of a waste lubricating oil regeneration tank proposed in this utility model.
[0022] In the diagram: 1. Tank body; 2. Feed port; 3. Support plate; 4. Support ring; 5. Mounting hole; 6. Sewage port; 7. Drainage port; 8. Strip plate; 9. Electric heating rod; 10. Mounting cylinder; 11. Mounting base; 12. Reverse osmosis membrane filter element; 13. Water outlet port; 14. Collection tray; 15. Fixing rod. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0024] Reference Figure 1-5 A waste lubricating oil regeneration tank includes a tank body 1, a plurality of electric heating rods 9 installed in the tank body 1, an installation cylinder 10 installed inside the tank body 1, a reverse osmosis membrane filter element 12 installed inside the installation cylinder 10, an inlet port 2 connected to the installation cylinder 10, the top of the inlet port 2 being located above the tank body 1, an outlet port 13 connected to the reverse osmosis membrane filter element 12, the outlet port 13 being located between the installation cylinder 10 and the tank body 1, a drain port 6 connected to the bottom of the installation cylinder 10, the bottom of the drain port 6 being located below the tank body 1, and a drain port 7 connected to the bottom of the tank body 1.
[0025] As a technical optimization of this utility model, a number of strip plates 8 are installed in a ring on the inner wall of the tank body 1, and electric heating rods 9 are installed on the side of the strip plates 8. The strip plates 8 can facilitate the connection between the electric heating rods 9 and the inner wall of the tank body 1.
[0026] As a technical optimization of this utility model, a fixing rod 15 is installed on the inner top wall of the tank 1, and an annular collection tray 14 is installed at the bottom of the fixing rod 15, and quicklime is loaded in the collection tray 14.
[0027] As a technical optimization of this utility model, mounting bases 11 are installed on the top and bottom walls of the inner wall of the mounting cylinder 10. The top and bottom ends of the reverse osmosis membrane filter element 12 are respectively installed in the two mounting bases 11. The two mounting bases 11 can facilitate the installation of the reverse osmosis membrane filter element 12.
[0028] As a technical optimization of this utility model, a maintenance window is provided on the top of the tank body 1, and a filter element replacement window is provided on the top of the installation cylinder 10. Both the maintenance window and the filter element replacement window are equipped with switch doors. The maintenance window facilitates the replacement of quicklime in the collection tray 14, and the filter element replacement window facilitates the replacement of the reverse osmosis membrane filter element 12.
[0029] As a technical optimization of this utility model, a number of support plates 3 are installed in a ring at the bottom of the tank body 1, and a support ring 4 is installed at the bottom of the support plate 3. The support plate 3 and the support ring 4 can be used together to provide support for the device.
[0030] As a technical optimization of this utility model, the top of the support ring 4 is provided with a number of mounting holes 5 in a ring shape, and the bottom of the support ring 4 is provided with an anti-slip rubber pad. The mounting holes 5 can facilitate the fixing of the support ring 4, thereby facilitating the fixing of this device. The anti-slip rubber pad can increase the friction between the support ring 4 and the ground.
[0031] As a technical optimization of this utility model, an installation block is installed on the side of the strip plate 8, an electric heating rod 9 is installed on the side of the installation block, and a collection tray 14 is located above the electric heating rod 9.
[0032] When this utility model is in use, if waste lubricating oil needs to be regenerated, firstly, the waste lubricating oil to be processed is introduced into the installation cylinder 10 through the feed port 2. The waste lubricating oil entering the installation cylinder 10 is located between the installation cylinder 10 and the reverse osmosis membrane filter element 12. As waste lubricating oil is continuously introduced into the installation cylinder 10, it can be filtered by the reverse osmosis membrane filter element 12. The reverse osmosis membrane filter element 12 can filter the waste lubricating oil. The reverse osmosis membrane filter element 12 only allows liquid (solvent) to pass through and prevents solute from passing through. The reverse osmosis membrane filter element 12 can filter the solid impurities contained in the waste lubricating oil onto the outer surface of the reverse osmosis membrane filter element 12, thereby filtering the solid impurities in the waste lubricating oil between the installation cylinder 10 and the reverse osmosis membrane filter element 12. Thus, the solid impurities in the waste lubricating oil can be filtered in one step, avoiding the presence of tiny solid impurities in the waste lubricating oil after filtering with a traditional filter screen, which would affect the regeneration process of the waste lubricating oil.
[0033] The filtered waste lubricating oil can be discharged through the water outlet 13. The waste lubricating oil that has been filtered of solid impurities by the reverse osmosis membrane filter element 12 can enter between the tank 1 and the installation cylinder 10.
[0034] Waste lubricating oil entering between tank 1 and mounting cylinder 10 is temporarily stored between tank 1 and mounting cylinder 10. The waste lubricating oil between tank 1 and mounting cylinder 10 is allowed to stand. Since the density of water is greater than that of lubricating oil, the water in the waste lubricating oil will settle to the lower layer, and the lubricating oil in the waste lubricating oil will be in the upper layer. At this time, the water in the waste lubricating oil in the lower layer can be released through the drain port 7, thereby separating most of the water from the lubricating oil in the waste lubricating oil.
[0035] After oil-water separation of waste lubricating oil, water still remains in the waste lubricating oil. At this time, the electric heating rod 9 is activated, which heats the waste lubricating oil between the tank 1 and the mounting cylinder 10. After the waste lubricating oil is heated, the water contained in it can be evaporated to produce water vapor. By using the electric heating rod 9 to heat the waste lubricating oil, the water in the waste lubricating oil can be evaporated and removed, thus obtaining pure lubricating oil.
[0036] The water in the waste lubricating oil is heated and evaporated by the electric heating rod 9 to produce water vapor. The water vapor can float to the top of the inner wall of the tank 1, and the quicklime in the collection pan 14 can absorb the water vapor, thereby absorbing the water vapor generated by the evaporation of water in the waste lubricating oil and improving the regeneration treatment of the waste lubricating oil.
[0037] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A waste lubricating oil regeneration tank, comprising a tank body (1), characterized in that, The tank (1) is equipped with several electric heating rods (9), and an installation cylinder (10) is installed inside the tank (1). A reverse osmosis membrane filter element (12) is installed inside the installation cylinder (10). The installation cylinder (10) is connected to a feed port (2). The top of the feed port (2) is located above the tank (1). The reverse osmosis membrane filter element (12) is connected to a water outlet port (13). The water outlet port (13) is located between the installation cylinder (10) and the tank (1). The bottom of the installation cylinder (10) is connected to a sewage discharge port (6). The bottom of the sewage discharge port (6) is located below the tank (1). The bottom of the tank (1) is connected to a drain port (7).
2. The waste lubricating oil regeneration tank according to claim 1, characterized in that, The inner wall of the tank (1) is equipped with several strip plates (8) in a ring shape, and electric heating rods (9) are installed on the side of the strip plates (8).
3. The waste lubricating oil regeneration tank according to claim 2, characterized in that, A fixing rod (15) is installed on the inner top wall of the tank (1), and an annular collection tray (14) is installed at the bottom of the fixing rod (15), and quicklime is loaded in the collection tray (14).
4. The waste lubricating oil regeneration tank according to claim 1, characterized in that, The top and bottom walls of the mounting cylinder (10) are each equipped with a mounting base (11), and the top and bottom of the reverse osmosis membrane filter element (12) are respectively installed in the two mounting bases (11).
5. A waste lubricating oil regeneration tank according to claim 1, characterized in that, The tank (1) has a maintenance window on the top, and the installation cylinder (10) has a filter replacement window on the top. Both the maintenance window and the filter replacement window are equipped with a switch door.
6. A waste lubricating oil regeneration tank according to claim 1, characterized in that, The tank body (1) has several support plates (3) installed in a ring at the bottom, and a support ring (4) is installed at the bottom of the support plate (3).
7. A waste lubricating oil regeneration tank according to claim 6, characterized in that, The top of the support ring (4) is provided with several mounting holes (5) in a ring shape, and the bottom of the support ring (4) is provided with an anti-slip rubber pad.
8. A waste lubricating oil regeneration tank according to claim 3, characterized in that, The strip plate (8) has an installation block installed on its side, the electric heating rod (9) is installed on the side of the installation block, and the collection plate (14) is located above the electric heating rod (9).