A sedimentation tank for removing impurities in rapeseed oil production
By designing a sedimentation tank with detachable impurity removal components and a layered filtration structure, the problems of clogging and impurity contamination in rapeseed oil filtration devices were solved, achieving efficient static sedimentation and impurity removal of rapeseed oil, thus improving oil quality and equipment lifespan.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHONGQING RED DRAGONFLY ECOLOGICAL AGRI DEV CO LTD
- Filing Date
- 2025-05-30
- Publication Date
- 2026-06-26
Smart Images

Figure CN224404621U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of grain and oil production technology, and in particular to a sedimentation tank for removing impurities in rapeseed oil production. Background Technology
[0002] Rapeseed oil is an edible oil produced from rapeseed through solvent extraction or pressing. It is believed to have moisturizing, insecticidal, anti-inflammatory, and heat-clearing properties. Pressed rapeseed oil is generally considered healthier and more popular. During the pressing process, the oil may contain small amounts of impurities. These impurities do not affect edibility but can make the oil appear less pure, impacting its marketability. Therefore, the rapeseed oil is filtered after pressing.
[0003] Currently, after a period of use, the filter screen of most rapeseed oil filtration devices on the market will become clogged with impurities. At this time, it is necessary to temporarily stop filtration and replace it with a new filter screen or a cleaned filter screen before filtration can continue. During the process of replacing the filter screen, the rapeseed oil in the filtration device is directly exposed to the air, which makes it very easy for dust and other impurities to enter, affecting the quality of the rapeseed oil. Summary of the Invention
[0004] In view of the shortcomings of the prior art, the technical problem to be solved by this patent application is how to provide a sedimentation tank for removing impurities in rapeseed oil production that can improve the quality of rapeseed oil, is simple to operate, and is convenient to use.
[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:
[0006] A sedimentation tank for removing impurities in rapeseed oil production includes a sedimentation tank body. The lower end of the sedimentation tank body protrudes downwards and has a slag outlet with a slag outlet valve installed thereon. Four vertically arranged rectangular support legs are fixedly mounted downwards on the sedimentation tank body. An oil outlet with an oil outlet valve is located on one side of the sedimentation tank body, above the slag outlet. Sealing plates are fixedly mounted on both sides of the upper end of the sedimentation tank body, and an installation plate is fixedly mounted in the middle of the upper end of the sedimentation tank body. The installation plate and sealing plates are used to control the sedimentation tank body. The mounting plate is used to shield the oil inlet. Four vertically arranged columns are also fixedly mounted on the mounting plate. Guide columns are coaxially fixedly mounted on each column, with a diameter smaller than that of the columns. Compression springs are fitted around the outer sides of the guide columns. A frame is positioned above the oil inlet, with the compression springs located between the columns and the frame. The frame has guide holes that slide with the guide columns. A sliding block is slidably fitted on the frame, with a stop block fixedly mounted at the lower end of the sliding block. A cleaning component is mounted on the sliding block. A clamping component is also provided on the mounting plate to press the cleaning component against the oil inlet.
[0007] In this way, when removing impurities from rapeseed oil, the impurity removal component is positioned directly opposite the oil inlet. The pressing component is pressed down, clamping the impurity removal component onto the oil inlet. After the rapeseed oil passes through the impurity removal component for filtration, it enters the sedimentation tank through the oil inlet for settling. After a period of time, the oil outlet valve is opened, allowing the rapeseed oil to be discharged into the storage tank. Then, the slag outlet valve is opened, allowing the lower layer of oil containing impurities to be discharged from the slag outlet, thus achieving the settling and impurity removal process. When it is necessary to clean the impurity removal component, the pressing component is engaged, the compression spring releases its elastic potential energy, and pushes the frame upward, causing the impurity removal component to disengage from the oil inlet. Then, the operator pushes the slide block horizontally, causing the slide block to move to one side of the sedimentation tank. At the same time, the stop block moves above the oil inlet, and the pressing component presses down, applying downward force to the slide block, causing the stop block to contact the oil inlet and block it. After replacing the impurity removal component, the pressing component releases the downward pressure, the compression spring releases its elastic potential energy, pushing the frame upward, and the stop block disengages from the oil inlet. Then, the operator pushes the slide block laterally, moving the impurity removal component above the oil inlet. The pressing component then presses down, pressing the impurity removal component onto the oil inlet, allowing for the removal of impurities from the rapeseed oil.
[0008] The settling time is generally 20-30 minutes, during which impurities settle downwards under gravity.
[0009] Equipped with support legs to support the sedimentation tank body, the slag outlet is spaced apart from the ground for easy slag discharge. The sealing plate and mounting plate facilitate assembly.
[0010] Preferably, linear slide rails are fixedly installed on both sides of the frame, and the slide block has grooves on both sides that slide in cooperation with the linear slide rails.
[0011] Preferably, the impurity removal assembly includes an impurity removal cylinder with an outer edge extending outward from its upper end. A through hole is provided in the slide block to allow the impurity removal cylinder to pass through. The slide block is provided with an annular groove for placing the outer edge. An inner edge protrudes inward from the lower end of the impurity removal cylinder. A filter frame is placed on the inner edge. A lower filter screen is fixedly installed inside the filter frame. A filter cylinder is placed inside the impurity removal cylinder. The lower end of the filter cylinder abuts against the filter frame. An upper filter screen is fixedly installed at the upper end of the filter cylinder. The mesh diameter of the upper filter screen is larger than that of the lower filter screen.
[0012] Preferably, the annular groove has outward notches on both sides.
[0013] Preferably, one side of the stop block is an arc surface that can fit against the outer wall of the impurity removal cylinder.
[0014] Preferably, the clamping assembly includes hydraulic cylinders fixedly installed on both sides of the mounting plate. The cylinder rods of the two hydraulic cylinders are arranged upward and fixedly connected to the connecting ring. An oil inlet bucket is fixedly installed on the connecting ring. A pressure bucket is fixed at the lower end of the oil inlet bucket. A pressure edge is provided at the lower end of the pressure bucket, and the pressure edge can be pressed against the outer edge.
[0015] Preferably, a positioning block for positioning the slide is fixedly installed at one end of the frame near the stop.
[0016] Preferably, both the sealing plate and the mounting plate are inverted U-shaped, and both sides of the sealing plate and the mounting plate are fixedly connected to the sedimentation tank body by bolts.
[0017] In summary, this sedimentation tank for removing impurities in rapeseed oil production has the advantages of improving the quality of rapeseed oil, being simple to operate, and being convenient to use. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the structure of a sedimentation tank for removing impurities in rapeseed oil production according to the present invention.
[0019] Figure 2 for Figure 1 A sectional view (legs are not shown).
[0020] Figure 3 for Figure 1 A schematic diagram of the impurity removal component.
[0021] Figure 4 for Figure 3 A breakdown diagram. Detailed Implementation
[0022] The present invention will now be described in further detail with reference to the accompanying drawings. In the description of the present invention, it should be understood that directional terms such as "upper," "lower," "top," and "bottom" indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. These terms are used only for the convenience of describing the present invention and simplifying the description. Unless otherwise stated, these directional terms 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, and therefore should not be construed as limiting the scope of protection of the present invention. The directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.
[0023] like Figure 1-4 As shown, a sedimentation tank for removing impurities in rapeseed oil production includes a sedimentation tank body 1. The lower end of the sedimentation tank body protrudes downwards, and a slag outlet 2 is provided at the lower end of the sedimentation tank body. A slag outlet valve is installed at the slag outlet. Four vertically arranged support legs 3 are fixedly installed downwards on the sedimentation tank body, and the four support legs are arranged in a rectangle. An oil outlet 4 is provided on one side of the sedimentation tank body, and an oil outlet valve is installed at the oil outlet. The oil outlet is located above the slag outlet. Sealing plates 5 are fixedly installed on both sides of the upper end of the sedimentation tank body, and an installation plate 6 is fixedly installed in the middle of the upper end of the sedimentation tank body. The installation plate and sealing plates are used to cover the sedimentation tank body. The mounting plate is used for shielding; an oil inlet 7 is fixedly installed on the mounting plate, and four vertically arranged columns 8 are fixedly installed on the mounting plate. A guide column 9 is fixedly installed coaxially upward on each column. The diameter of the guide column is smaller than the diameter of the column. A compression spring 10 is sleeved on the outside of the guide column. A frame 11 is provided above the oil inlet. The compression spring is located between the column and the frame. The frame has a guide hole that slides with the guide column. A slide block 12 is slidably fitted on the frame. A stop block 13 is fixedly installed at the lower end of the slide block. A dirt removal component is provided on the slide block. A clamping component for pressing the dirt removal component against the oil inlet is also provided on the mounting plate.
[0024] In this way, when removing impurities from rapeseed oil, the impurity removal component is positioned directly opposite the oil inlet. The pressing component is pressed down, clamping the impurity removal component onto the oil inlet. After the rapeseed oil passes through the impurity removal component for filtration, it enters the sedimentation tank through the oil inlet for settling. After a period of time, the oil outlet valve is opened, allowing the rapeseed oil to be discharged into the storage tank. Then, the slag outlet valve is opened, allowing the lower layer of oil containing impurities to be discharged from the slag outlet, thus achieving the settling and impurity removal process. When it is necessary to clean the impurity removal component, the pressing component is engaged, the compression spring releases its elastic potential energy, and pushes the frame upward, causing the impurity removal component to disengage from the oil inlet. Then, the operator pushes the slide block horizontally, causing the slide block to move to one side of the sedimentation tank. At the same time, the stop block moves above the oil inlet, and the pressing component presses down, applying downward force to the slide block, causing the stop block to contact the oil inlet and block it. After replacing the impurity removal component, the pressing component releases the downward pressure, the compression spring releases its elastic potential energy, pushing the frame upward, and the stop block disengages from the oil inlet. Then, the operator pushes the slide block laterally, moving the impurity removal component above the oil inlet. The pressing component then presses down, pressing the impurity removal component onto the oil inlet, allowing for the removal of impurities from the rapeseed oil.
[0025] The settling time is generally 20-30 minutes, during which impurities settle downwards under gravity.
[0026] Equipped with support legs to support the sedimentation tank body, the slag outlet is spaced apart from the ground for easy slag discharge. The sealing plate and mounting plate facilitate assembly.
[0027] In its natural state, i.e., when the clamping assembly is in the uncompressed state, the compression spring supports the frame, and the impurity removal assembly and the oil inlet are spaced apart.
[0028] By setting up the baffle, when the slide moves the impurity removal component to the oil inlet side, the baffle can block the oil inlet, improve the purity of rapeseed oil, and prevent impurities from entering.
[0029] In implementation, linear slide rails 14 are fixedly installed on both sides of the frame, and grooves are provided on both sides of the slide block to slide with the linear slide rails. This improves the smoothness of the slide block's movement and its positioning accuracy.
[0030] In implementation, the impurity removal assembly includes an impurity removal cylinder 15, with an outer edge 16 extending outward from the upper end of the impurity removal cylinder. A through hole 17 is provided through the slide to allow the impurity removal cylinder to pass through. The slide is provided with an annular groove 18 for placing the outer edge. An inner edge 19 protrudes inward from the lower end of the impurity removal cylinder. A filter frame is placed on the inner edge. A lower filter screen 21 is fixedly installed inside the filter frame. A filter cylinder 22 is placed inside the impurity removal cylinder. The lower end of the filter cylinder abuts against the filter frame. An upper filter screen 23 is fixedly installed at the upper end of the filter cylinder. The mesh diameter of the upper filter screen is larger than that of the lower filter screen.
[0031] This layered filtration structure, with the upper and lower filters working together, achieves a stepped interception of impurities, improving the impurity removal effect. The separate design, with filter frames and filter cylinders placed inside the impurity removal cylinder, facilitates easy replacement. The outer edge is supported by a sliding base, resulting in a simple and stable overall structure. The filter cylinder arrangement allows for the upper and lower filter screens to be spaced apart, facilitating impurity removal. Compared to side-by-side filters, increasing the spacing between the upper and lower filter screens with the filter cylinder extends the impurity removal time and reduces the frequency of cleaning.
[0032] During implementation, notches 24 are provided on both sides of the annular groove facing outwards. The outer edge of the waste removal cylinder can be quickly inserted or removed, significantly reducing the complexity of installation and disassembly. This reduces manual operation time, improves maintenance efficiency, and avoids component deformation or damage caused by forced assembly, thus extending the service life of the equipment.
[0033] In implementation, one side of the stop block is an arc surface 25 that can fit against the outer wall of the impurity removal cylinder. Designing one side of the stop block as an arc surface that fits against the outer wall of the impurity removal cylinder enhances the lateral limiting capability of the stop block on the impurity removal cylinder. This structure effectively prevents the impurity removal cylinder from shaking or shifting during filtration, ensuring precise alignment between the filter frame and the oil inlet.
[0034] In implementation, the clamping assembly includes hydraulic cylinders 26 fixedly mounted on both sides of the mounting plate. The cylinder rods of the two hydraulic cylinders are upwardly positioned and fixedly connected to the connecting ring 27. An oil inlet hopper 28 is fixedly mounted on the connecting ring, and a pressure hopper 29 is fixedly mounted at the lower end of the oil inlet hopper. A pressure edge 30 protrudes outward from the lower end of the pressure hopper, and the pressure edge can press against the outer edge. The clamping assembly uses hydraulic cylinders to drive the connecting ring, thereby causing the pressure hopper at the lower end of the oil inlet hopper to press against the outer edge, pushing the impurity removal cylinder to abut against the oil inlet, ensuring tight contact between the filter cylinder and the oil inlet, and preventing the seal from failing due to rapeseed oil impact.
[0035] In practice, a positioning block 31 for positioning the slide is fixedly installed at one end of the frame near the stop block. This provides a clear endpoint for the slide's movement, and when the slide abuts against the positioning block, the impurity removal cylinder and the oil inlet are positioned directly opposite each other.
[0036] In practice, both the sealing plate and the mounting plate are inverted U-shaped, and both sides of the sealing plate and the mounting plate are fixedly connected to the sedimentation tank body by bolts 32. This facilitates disassembly and maintenance, reducing maintenance costs.
[0037] Finally, it should be noted that those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims and their equivalents, this utility model also intends to include these modifications and variations.
Claims
1. A sedimentation tank for removing impurities in rapeseed oil production, comprising a sedimentation tank body, the lower end of which protrudes downwards, a slag outlet is provided at the lower end of the sedimentation tank body, a slag outlet valve is installed at the slag outlet, four vertically arranged support legs are fixedly installed downwards on the sedimentation tank body, the four support legs are arranged in a rectangle, an oil outlet is provided on one side of the sedimentation tank body, an oil outlet valve is installed at the oil outlet, and the oil outlet is located above the slag outlet; characterized in that, The sedimentation tank body has sealing plates fixedly installed on both sides of its upper end, and an installation plate fixedly installed in the middle of its upper end. The installation plate and sealing plates are used to cover the sedimentation tank body. An oil inlet is fixedly installed on the installation plate, and four vertically arranged columns are fixedly installed on the installation plate. Guide columns are fixedly installed coaxially upward on the columns. The diameter of the guide columns is smaller than the diameter of the columns. Compression springs are sleeved on the outer side of the guide columns. A frame is provided above the oil inlet, and the compression springs are located between the columns and the frame. The frame has guide holes that slide with the guide columns. A slide block is slidably fitted on the frame. A stop block is fixedly installed at the lower end of the slide block. A dirt removal component is provided on the slide block. A clamping component is also provided on the installation plate to press the dirt removal component against the oil inlet.
2. A sedimentation tank for removing impurities in rapeseed oil production according to claim 1, characterized in that, Linear slide rails are fixedly installed on both sides of the frame, and grooves that slide in cooperation with the linear slide rails are opened on both sides of the slide block.
3. A sedimentation tank for removing impurities in rapeseed oil production according to claim 2, characterized in that, The impurity removal assembly includes an impurity removal cylinder with an outer edge extending outward from its upper end. A through hole is provided in the slide block to allow the impurity removal cylinder to pass through. The slide block is provided with an annular groove for placing the outer edge. An inner edge protrudes inward from the lower end of the impurity removal cylinder. A filter frame is placed on the inner edge. A lower filter screen is fixedly installed inside the filter frame. A filter cylinder is placed inside the impurity removal cylinder. The lower end of the filter cylinder abuts against the filter frame. An upper filter screen is fixedly installed at the upper end of the filter cylinder. The mesh diameter of the upper filter screen is larger than that of the lower filter screen.
4. A sedimentation tank for removing impurities in rapeseed oil production according to claim 3, characterized in that, The annular groove has outward notches on both sides.
5. A sedimentation tank for removing impurities in rapeseed oil production according to claim 4, characterized in that, One side of the stop block is an arc surface that can fit against the outer wall of the impurity removal cylinder.
6. A sedimentation tank for removing impurities in rapeseed oil production according to claim 5, characterized in that, The clamping assembly includes hydraulic cylinders fixedly installed on both sides of the mounting plate. The cylinder rods of the two hydraulic cylinders are set upward and fixedly connected to the connecting ring. An oil inlet bucket is fixedly installed on the connecting ring. A pressure bucket is fixed at the lower end of the oil inlet bucket. A pressure edge is provided at the lower end of the pressure bucket, and the pressure edge can be pressed against the outer edge.
7. A sedimentation tank for removing impurities in rapeseed oil production according to claim 6, characterized in that, A positioning block for positioning the slide is fixedly installed at one end of the frame near the stop.
8. A sedimentation tank for removing impurities in rapeseed oil production according to claim 1, characterized in that, Both the sealing plate and the mounting plate are inverted U-shaped, and both sides of the sealing plate and the mounting plate are fixedly connected to the sedimentation tank body by bolts.