A layered separation device for waste mineral oil treatment
By using a motor-driven separation structure and a centrifugally rotating filter assembly, the problem of clogging of the hydrophilic and oleophobic filter layer is solved, achieving efficient layered filtration of waste mineral oil and ensuring the stability and efficiency of the filtration effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHAOWU LUYIXIN ENVIRONMENTAL PROTECTION IND DEV CO LTD
- Filing Date
- 2025-09-11
- Publication Date
- 2026-08-04
AI Technical Summary
In existing technologies, hydrophilic and oleophobic filter layers are easily clogged by tiny particles or impurities in mineral oil during long-term use, resulting in a decrease in filtration efficiency.
The separation structure, driven by an electric motor, includes a rotating shaft, a driving gear, a driven gear, a gear chain, a rotating rod, and scrapers. The combination of screen and scrapers achieves the initial separation of waste mineral oil. Centrifugal rotation using an inverted T-shaped rotating tube, a filter screen, and a semi-permeable membrane enables the stratified filtration of oil and water.
It effectively avoids the impact of impurities on oil flow rate, achieves efficient stratified filtration of waste mineral oil, and ensures the stability and efficiency of filtration effect.
Smart Images
Figure CN224590890U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of waste mineral oil treatment technology, specifically to a layer separation device for waste mineral oil treatment. Background Technology
[0002] Waste mineral oil refers to mineral oil that has been used in industries such as manufacturing, machinery, and automobiles. After prolonged use, it loses its original lubricating properties and contains impurities and contaminants. It typically contains metal particles, oxides, microorganisms, and chemicals, which pose potential hazards to the environment and human health.
[0003] For example, an oil-water separation device for waste mineral oil regeneration treatment, disclosed in CN222809414U, includes a base plate. A filter box is mounted on the upper part of the base plate via a support rod. A filter frame is slidably installed inside the filter box, and a filter screen is installed at the bottom of the filter frame. A connecting pipe is installed at the lower end of the filter box, and a separation box is installed below the connecting pipe. A temporary storage box is installed inside the separation box, and a hydrophilic-oleophobic filter layer is installed inside the temporary storage box. A drain pipe is installed at the lower end of the temporary storage box, and an oil extraction pipe is installed on the surface of the temporary storage box above the hydrophilic-oleophobic filter layer. An addition pipe is installed at the upper end of the filter box. By setting up the filter frame and filter screen, the filter screen can filter particulate impurities in the mineral oil, preventing particulate matter from clogging the isolation medium. Furthermore, the filtered particulate impurities can be easily cleaned by pulling the filter.
[0004] The aforementioned patent proposes that by installing a hydrophilic and oleophobic filter layer inside the temporary storage tank, the hydrophilic and oleophobic filter layer can filter water and isolate oil, thereby achieving oil-water separation of mineral oil. However, in actual use, the hydrophilic and oleophobic filter layer is easily clogged by tiny particles or impurities in the mineral oil during long-term use, resulting in a decrease in filtration efficiency. Utility Model Content
[0005] The purpose of this invention is to provide a layered separation device for waste mineral oil treatment, so as to solve the problem mentioned in the background art that the hydrophilic and oleophobic filter layer is easily blocked by tiny particles or impurities in the mineral oil during long-term use.
[0006] To achieve the above objectives, the present invention provides the following technical solution: a layered separation device for waste mineral oil treatment, comprising a separation structure, wherein the separation structure includes a motor and a fixed shell installed at the bottom of the motor, a drain pipe is installed at the bottom of the fixed shell and is located at the bottom of the motor, a screening tank is installed on the outside of the drain pipe and is located at the bottom of the fixed shell, a layering tank is installed at the bottom of the drain pipe, and support legs are symmetrically installed on both sides of the bottom of the layering tank; The motor has a rotating shaft installed at its output end, a drive gear is installed on the outside of the rotating shaft, a driven gear is provided on one side of the drive gear, and a toothed chain connects the outside of the drive gear and the driven gear. An internal ring is installed at the upper end of the screening tank, a rotating rod is installed at the middle end of the driven gear, a bottom circular plate is movably installed at the bottom end of the rotating rod, a screen is installed between the inner side of the internal ring and the outer side of the bottom circular plate, and a scraper is installed on the outer side of the bottom end of the rotating rod.
[0007] Preferably, the bottom of the screening tank is provided with a funnel groove, the bottom center of the funnel groove is provided with a drain hole, the bottom of the screening tank is provided with an inclined guide pipe, and the outer surface of the guide pipe is provided with an inclined guide hole.
[0008] Preferably, the interior of the layered tank is provided with an inverted T-shaped groove, an inverted T-shaped rotating tube is movably installed inside the inverted T-shaped groove, and an external ring is installed on the outside of the inverted T-shaped rotating tube.
[0009] Preferably, a filter screen is installed on the outer side of the bottom end of the inverted T-shaped rotating tube, and a semi-permeable membrane is installed on the outer side of the filter screen.
[0010] Preferably, a circular bottom plate is installed between the inner bottom ends of the filter screen, a drain pipe is installed through the bottom end of the layered tank, and a water valve is installed at the bottom end of the drain pipe.
[0011] Preferably, an oil drain pipe is installed through the middle of the layered tank and the circular bottom plate, a side groove is opened on the outer side of the bottom end of the rotating shaft, and an oil transfer valve is installed at the bottom end of the oil drain pipe.
[0012] Compared with the prior art, the beneficial effects of this utility model are: 1. The present invention discloses a layered separation device for waste mineral oil treatment. Waste mineral oil is poured into the inside of a screening tank. When the motor starts to operate, it drives the rotating shaft to rotate. The driven gear is driven to rotate through the gear chain. The rotating rod drives the scraper to rotate at the top of the screen, causing the waste mineral oil to flow through the screen into the inside of the funnel. The waste minerals in the waste mineral oil will remain at the top of the screen. The scraper will push away the waste minerals to prevent them from affecting the downward flow speed of the oil.
[0013] 2. The waste mineral oil treatment layer separation device disclosed in this utility model, when filtering waste mineral oil, the rotating shaft will drive the inverted T-shaped rotating tube, filter screen, semi-permeable membrane and circular bottom plate to rotate. The oil will rotate centrifugally. The water in the oil will flow through the filter screen and semi-permeable membrane into the interior of the inverted T-shaped tank. The water will be discharged into the interior of the inverted T-shaped tank through the drain pipe and water transfer valve. After the waste mineral oil in the screening tank and layer tank has been filtered, the motor can stop operating. The oil transfer valve will be opened and the waste oil will be discharged through the oil drain pipe and oil transfer valve. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model; Figure 2This is a schematic diagram of the layered tank structure of this utility model; Figure 3 For the present utility model Figure 2 Enlarged view of point A in the middle; Figure 4 This is a three-dimensional structural diagram of the screening tank of this utility model.
[0015] In the diagram: 1. Separation structure; 11. Motor; 111. Rotating shaft; 112. Drive gear; 113. Gear chain; 114. Driven gear; 115. Side groove; 116. Rotating rod; 117. Bottom circular plate; 118. Scraper; 12. Fixed shell; 13. Screening tank; 131. Internal ring; 132. Screen; 133. Funnel groove; 134. Drainage hole; 135. Inclined guide pipe; 14. Drainage pipe; 141. Inclined guide hole; 15. Layered tank; 151. Inverted T-shaped groove; 152. Inverted T-shaped rotating pipe; 153. External ring; 154. Circular bottom plate; 155. Filter screen; 156. Semi-permeable membrane; 157. Drain pipe; 158. Oil drain pipe; 16. Oil transfer valve; 17. Water transfer valve; 18. Support leg. Detailed Implementation
[0016] 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.
[0017] Example 1: Please refer to Figure 1 , Figure 2 and Figure 4 A layered separation device for waste mineral oil treatment includes a separation structure 1. The separation structure 1 includes a motor 11 and a fixed shell 12 installed at the bottom of the motor 11. A diversion pipe 14 is installed at the bottom of the fixed shell 12 and is located at the bottom of the motor 11. A screening tank 13 is installed on the outside of the diversion pipe 14 and is located at the bottom of the fixed shell 12. A layering tank 15 is installed at the bottom of the diversion pipe 14. Support legs 18 are symmetrically installed on both sides of the bottom of the layering tank 15.
[0018] A rotating shaft 111 is installed at the output end of the motor 11. A driving gear 112 is installed on the outside of the rotating shaft 111. A driven gear 114 is provided on one side of the driving gear 112. A toothed chain 113 is connected to the outside of the driving gear 112 and the driven gear 114. The driving gear 112, the toothed chain 113 and the driven gear 114 are located inside the fixed housing 12.
[0019] An internal ring 131 is installed at the upper end of the screening tank 13. A rotating rod 116 is installed at the middle end of the driven gear 114. A bottom circular plate 117 is movably installed at the bottom end of the rotating rod 116. A screen 132 is installed between the inner side of the internal ring 131 and the outer side of the bottom circular plate 117. A scraper 118 is installed on the outer side of the bottom end of the rotating rod 116. The internal ring 131, screen 132 and bottom circular plate 117 form an inverted funnel shape, which facilitates the movement of particulate matter in waste mineral oil to one side of the internal ring 131, and avoids the particulate matter from spreading flat on the top of the screen 132, which would affect the flow rate of waste mineral oil.
[0020] The screening tank 13 has a funnel groove 133 at the bottom of its interior. A drain hole 134 is provided through the middle of the bottom of the funnel groove 133. An inclined guide pipe 135 is installed at the bottom of the screening tank 13. An inclined guide hole 141 is provided through the outer surface of the guide pipe 14. The bottom of the inclined guide pipe 135 is installed on the outside of the inclined guide hole 141 to facilitate the flow of waste mineral oil.
[0021] The interior of the layered tank 15 is provided with an inverted T-shaped groove 151. An inverted T-shaped rotating tube 152 is movably installed inside the inverted T-shaped groove 151. An external ring 153 is installed on the outside of the inverted T-shaped rotating tube 152. The inverted T-shaped rotating tube 152 is movably installed inside the inverted T-shaped groove 151. When the inverted T-shaped rotating tube 152 rotates, the position of the layered tank 15 will remain unchanged.
[0022] In this embodiment: when waste mineral oil is poured into the screening tank 13, the motor 11 starts to operate and drives the rotating shaft 111 to rotate. This causes the drive gear 112 installed on the outer surface of the rotating shaft 111 to drive the driven gear 114 to rotate through the gear chain 113. This causes the rotating rod 116 installed in the middle of the driven gear 114 to rotate. The rotating rod 116 drives the scraper 118 to rotate at the top of the screen 132, causing the waste mineral oil to flow through the screen 132 into the funnel trough 133. The waste minerals in the waste mineral oil will remain at the top of the screen 132. The scraper 118 will push away the waste minerals to prevent them from affecting the downward flow speed of the oil. After filtration, the oil flows through the drain hole 134, the inclined guide pipe 135, and the inclined guide hole 141 into the inverted T-shaped rotating pipe 152.
[0023] Example 2: This example is an improvement upon Example 1. For details, please refer to [link / reference]. Figure 2 and Figure 3 A filter screen 155 is installed on the outer side of the bottom end of the inverted T-shaped rotating tube 152, and a semi-permeable membrane 156 is installed on the outer side of the filter screen 155. The semi-permeable membrane 156 will block oil and fine particulate matter, and the filter screen 155 will filter waste mineral oil while supporting the semi-permeable membrane 156.
[0024] A round bottom plate 154 is installed between the inner bottom ends of the filter screen 155. The round bottom plate 154 is movably installed at the inner bottom end of the layered tank 15. A drain pipe 157 is installed through the bottom end of the layered tank 15. A water valve 17 is installed at the bottom end of the drain pipe 157. The drain pipe 157 is located outside the round bottom plate 154.
[0025] An oil drain pipe 158 is installed through the middle of the layered tank 15 and the round bottom plate 154. A side groove 115 is opened on the outer side of the bottom end of the rotating shaft 111. An oil rotary valve 16 is installed at the bottom end of the oil drain pipe 158. The diameter of the rotating shaft 111 is larger than the diameter of the oil drain pipe 158.
[0026] In this embodiment: when filtering waste mineral oil, the rotating shaft 111 drives the inverted T-shaped rotating tube 152, filter screen 155, semi-permeable membrane 156, and circular bottom plate 154 to rotate. The outer ring 153 installed on the outside of the inverted T-shaped rotating tube 152 restricts its rotation range. The oil in the tank-like component composed of the inverted T-shaped rotating tube 152, filter screen 155, semi-permeable membrane 156, and circular bottom plate 154 is subjected to external rotational force, causing the oil to centrifuge. Water in the oil passes through the filter screen 155 and the semi-permeable membrane 156. Membrane 156 flows into the interior of the inverted T-shaped trough 151. Water valve 17 is opened beforehand to allow water to be discharged from the interior of the inverted T-shaped trough 151 through drain pipe 157 and water valve 17. After the waste mineral oil in screening tank 13 and stratification tank 15 has been filtered, motor 11 can stop operating. Oil valve 16 is opened, and waste oil inside the inverted T-shaped rotating pipe 152, filter screen 155, semi-permeable membrane 156 and round bottom plate 154 will be discharged through oil drain pipe 158 and oil valve 16, thus achieving stratified filtration of waste mineral oil.
[0027] The contents not described in detail in this specification are existing technologies known to those skilled in the art.
[0028] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A stratification separation device for waste mineral oil treatment, comprising a separation structure (1), characterized in that: The separation structure (1) includes a motor (11) and a fixed shell (12) installed at the bottom of the motor (11). A drain pipe (14) is installed at the bottom of the fixed shell (12), and the drain pipe (14) is located at the bottom of the motor (11). A screening tank (13) is installed on the outside of the drain pipe (14), and the screening tank (13) is located at the bottom of the fixed shell (12). A layering tank (15) is installed at the bottom of the drain pipe (14), and support legs (18) are symmetrically installed on both sides of the bottom of the layering tank (15). The output end of the motor (11) is equipped with a rotating shaft (111), a driving gear (112) is installed on the outside of the rotating shaft (111), a driven gear (114) is provided on one side of the driving gear (112), and a toothed chain (113) is connected to the outside of the driving gear (112) and the driven gear (114). The screening tank (13) has an internal ring (131) installed at the upper end, a rotating rod (116) installed at the middle end of the driven gear (114), a bottom circular plate (117) movably installed at the bottom end of the rotating rod (116), a screen (132) installed between the inner side of the internal ring (131) and the outer side of the bottom circular plate (117), and a scraper (118) installed on the outer side of the bottom end of the rotating rod (116).
2. The stratification separation device for waste mineral oil treatment according to claim 1, characterized in that: The screening tank (13) has a funnel groove (133) at the bottom inside, and a drain hole (134) is opened through the middle of the bottom of the funnel groove (133). An inclined guide pipe (135) is installed at the bottom of the screening tank (13), and an inclined guide hole (141) is opened through the outer surface of the guide pipe (14).
3. The stratification separation device for waste mineral oil treatment according to claim 1, characterized in that: The layered tank (15) has an inverted T-shaped groove (151) inside, an inverted T-shaped rotating tube (152) is movably installed inside the inverted T-shaped groove (151), and an external ring (153) is installed on the outside of the inverted T-shaped rotating tube (152).
4. The stratification separation device for waste mineral oil treatment according to claim 3, characterized in that: A filter screen (155) is installed on the outer side of the bottom end of the inverted T-shaped rotating tube (152), and a semi-permeable membrane (156) is installed on the outer side of the filter screen (155).
5. The stratification separation device for waste mineral oil treatment according to claim 4, characterized in that: A round bottom plate (154) is installed between the inner bottom ends of the filter screen (155), and a drain pipe (157) is installed through the bottom end of the layered tank (15). A water valve (17) is installed at the bottom end of the drain pipe (157).
6. The stratification separation device for waste mineral oil treatment according to claim 5, characterized in that: An oil drain pipe (158) is installed through the middle of the layered tank (15) and the round bottom plate (154). A side groove (115) is opened on the outer side of the bottom end of the rotating shaft (111). An oil transfer valve (16) is installed at the bottom end of the oil drain pipe (158).