A rapeseed oil refining filter device

Abstract

The utility model relates to rapeseed oil processing technical field, concretely is a rapeseed oil refining filter device, include: collecting bucket, socket bucket, filter mechanism and overflow control mechanism, socket bucket fixed connection in the collecting bucket top part, from below and on including narrow diameter section, the flared mouth section of outward expansion and the wide diameter section of diameter greater than collecting bucket, filter mechanism includes the filter plate of fixed mounting in the collecting bucket top mouth and the motor of installation in the top cap, the filter plate center rotation is connected with the drive shaft of motor output shaft drive connection, drive shaft side wall fixed mounting has a plurality of with filter plate surface adhesion's scraping material spare. The utility model scraping material spare can scrape the filter residue in real time, effectively avoided the problem of the filter resistance rise caused by filter residue accumulation, makes the filter speed can be improved significantly, the filter residue and the clean oil liquid after filtering branch output, avoids the problem that oil liquid and filter residue share the export and lead to secondary pollution.

Description

Technical Field

[0001] This utility model relates to a rapeseed oil refining and filtration device, belonging to the field of rapeseed oil processing technology. Background Technology

[0002] Rapeseed oil, as one of my country's important edible oil varieties, occupies an important position in people's daily diet. With consumers' increasing demands for edible oil quality, the refining process of rapeseed oil is receiving growing attention. Decolorization is a crucial step in the refining process, typically using decolorizing agents (such as activated clay, diatomaceous earth, or activated carbon) to adsorb pigments and other impurities in the oil, thereby improving its color and quality. However, after adsorbing pigments, the decolorizing agents form adsorbed particles. These particles, mixed in with the refined rapeseed oil, can negatively impact its appearance, taste, and stability if not properly treated.

[0003] Currently, traditional filtration devices have many shortcomings in the filtration stage after rapeseed oil refining. On the one hand, the filter plates of traditional filtration devices are mostly flat. During the filtration process, particles adsorbed by the decolorizing agent easily accumulate on the surface of the filter plates, causing blockage. As the filtration time increases, the blockage becomes more severe, leading to a significant decrease in filtration speed and efficiency, which increases production and time costs. Furthermore, when cleaning the filter residue after filtration, it is often necessary to disassemble the entire filter component, which not only increases the difficulty and workload of equipment maintenance.

[0004] Therefore, it is urgent to improve the rapeseed oil filtration device to solve the above-mentioned problems. Utility Model Content

[0005] The purpose of this invention is to provide a rapeseed oil refining and filtration device to solve the problems of filtration efficiency and equipment stability in the existing technology.

[0006] To achieve the above objectives, the main technical solutions adopted by this utility model include:

[0007] Collection bucket with an opening at the top;

[0008] The sleeve bucket is fixedly connected to the top of the collection bucket. From bottom to top, it includes a narrow diameter section, an outwardly expanding bulging section, and a wide diameter section with a diameter larger than that of the collection bucket. The lower end of the wide diameter section is sleeved on the outside of the collection bucket and connected to the collection bucket through a support rod. An annular overflow port is formed between the bulging section and the top surface of the collection bucket. An annular flow channel communicating with the overflow port is formed between the wide diameter section and the outer wall of the collection bucket.

[0009] The top cover is sealed and installed on the top of the narrow diameter section, and is equipped with a feed pipe and a motor mounting port;

[0010] The filtration mechanism includes a filter plate fixedly installed at the top opening of the collection tank and a motor installed on the top cover. The filter plate is rotatably connected to a drive shaft that is driven by the output shaft of the motor. Multiple scraping parts that are in contact with the surface of the filter plate are fixedly installed on the side wall of the drive shaft.

[0011] The overflow control mechanism includes an annular slide cavity opened in a narrow diameter section, a retaining ring that is sealed and slidably disposed in the annular slide cavity, and a linear actuator that drives the retaining ring to rise and fall to open and close the overflow port.

[0012] Preferably, the filter plate has a tapered structure that is narrower at the top and wider at the bottom, forming a slope that slopes outward from the center.

[0013] Preferably, the scraper is a conical spiral scraper with a rigid support structure and a soft strip on the side that is in contact with the filter plate. The conical spiral scraper is adapted to the conical filter plate, and the spiral direction of the scraper matches the rotation direction of the motor. Its outer edge is in clearance fit with the inner wall of the retaining ring.

[0014] Preferably, a splined shaft is mounted on the top surface of the drive shaft, and a splined groove adapted to the splined shaft is provided at the output end of the motor.

[0015] Preferably, the linear actuator is a pneumatic cylinder, a hydraulic cylinder, or an electric push rod.

[0016] Preferably, the bottom of the wide diameter section is folded inward to form a fixed edge welded to the outer wall of the collection bucket. An inclined guide block is provided on the fixed edge. A water inlet on the high side of the inclined guide block and a discharge trough on the low side of the inclined guide block are installed on the wide diameter section.

[0017] Preferably, the bottom surface of the retaining ring is an inclined surface that matches the slope of the filter plate.

[0018] This utility model has the following beneficial effects:

[0019] This invention employs a collaborative working mechanism of a conical filter plate and a spiral scraper. During the filtration process, the scraper can remove filter residue in real time, effectively avoiding the problem of increased filtration resistance caused by filter residue accumulation, thus significantly improving the filtration speed. At the same time, it reduces the frequency of cleaning the filter plate and improves production continuity. In addition, with the openable and closable overflow port, the filter residue can be automatically discharged at regular intervals without the need to disassemble the filter components, thereby improving overall production efficiency and saving enterprises a lot of time and costs.

[0020] This invention employs an independent annular flow channel to discharge filter residue, coupled with an openable and closable overflow port. The filter residue and the filtered clean oil are output separately, effectively avoiding the problem of filter residue mixing into the oil, achieving complete separation of oil and filter residue, and preventing secondary pollution caused by oil and filter residue sharing an outlet. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall internal structure of this utility model;

[0022] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0023] Figure 3 This is a schematic diagram of the filter plate in this utility model;

[0024] Figure 4 This is a schematic diagram of the connection relationship between the spline groove and the spline shaft in this utility model.

[0025] In the diagram, 1. Collection bucket; 2. Connecting bucket; 21. Narrow diameter section; 22. Expanded mouth section; 23. Wide diameter section; 24. Support rod; 25. Inclined guide block; 26. Fixed edge; 27. Discharge trough; 28. Water inlet; 3. Overflow port; 4. Annular flow channel; 5. Top cover; 6. Feed pipe; 7. Filter plate; 8. Motor; 81. Spline groove; 9. Scraper; 91. Drive shaft; 92. Spline shaft; 10. Annular sliding cavity; 11. Retaining ring; 12. Linear actuator. Detailed Implementation

[0026] The present invention will be further described below with reference to the accompanying drawings.

[0027] like Figures 1-4 As shown, the rapeseed oil refining and filtration device provided in this embodiment includes a collection tank 1, a connecting tank 2, a top cover 5, a filtration mechanism, and an overflow control mechanism.

[0028] The top of the collection tank 1 has an opening, and a drain pipe is installed at the bottom of the collection tank 1 for draining the filtered oil. The sleeve tank 2 is fixedly connected to the top of the collection tank 1 and includes, from bottom to top, a narrow diameter section 21, an outwardly expanding bulging section 22, and a wide diameter section 23 with a diameter larger than that of the collection tank 1. The narrow diameter section 21 has the same diameter as the collection tank 1. The lower end of the wide diameter section 23 is sleeved on the outside of the collection tank 1 and connected to the collection tank 1 through a support rod 24. The connection between the bulging section 22 and the wide diameter section 23 is flush with the top surface of the collection tank 1. Since the diameter of the wide diameter section 23 is larger than that of the collection tank 1, an annular overflow port 3 is formed between the bulging section 22 and the top surface of the collection tank 1. An annular flow channel 4 communicating with the overflow port 3 is formed between the wide diameter section 23 and the outer wall of the collection tank 1.

[0029] The top cover 5 is sealed and installed on the top of the narrow diameter section 21. The top cover 5 and the narrow diameter section 21 are sealed and connected by a quick-release flange. A feed pipe 6 is provided on the top surface of the top cover 5 for the input of oil. A motor mounting port is also provided in the center of the top cover 5.

[0030] In the refining process of rapeseed oil, decolorizing agents (such as activated clay, diatomaceous earth, or activated carbon) are used to adsorb pigments and other impurities in the oil to improve the color and quality of the rapeseed oil. After adsorbing pigments, the decolorizing agents form adsorbed particles. These particles are mixed in the refined rapeseed oil and are separated by a filtration mechanism. The filtration mechanism includes a filter plate 7 fixedly installed at the top of the collection tank 1 and a motor 8 installed on the top cover 5. The filter plate 7 separates the collection tank 1 and the connecting tank 2. A collection chamber is formed below the filter plate 7, and a filtration chamber is formed above the filter plate 7. The refined rapeseed oil is injected into the filtration chamber through the feed pipe 6 and filtered by the filter plate 7 to remove the decolorizing agent particles in the oil. The filtered oil enters the collection chamber for storage, while the decolorizing agent particles are trapped on the filter plate 7.

[0031] The output shaft of motor 8 extends into the filter chamber through the motor mounting port. The center of filter plate 7 is rotatably connected to a drive shaft 91 that is driven by the output shaft of motor 8. Multiple scraper parts 9 are fixedly installed on the side wall of drive shaft 91 and are in contact with the surface of filter plate 7. Due to the accumulation of filter residue during long-term filtration, the filtration effect will be affected. By driving drive shaft 91 to rotate through motor 8, the multiple scraper parts 9 rotate while maintaining contact with the surface of filter plate 7, so that the filter holes on filter plate 7 are exposed again, thereby reducing filtration resistance and increasing filtration speed.

[0032] Reference Figure 1-4 The filter plate 7 has a conical structure that is narrower at the top and wider at the bottom, forming a slope that slopes outward from the center. The conical structure has significant advantages in the filtration process. First, it has a larger filtration area. Second, when the mixture to be filtered enters the filtration area, the filter cake will naturally flow towards the edge of the filter plate 7 under the action of gravity. The sloping surface is conducive to the filter cake gradually accumulating towards the edge of the filter plate 7 along the slope during the filtration process, reducing the accumulation of filter cake in the central area of ​​the filter plate 7, thereby reducing filtration resistance and improving filtration efficiency.

[0033] The overflow control mechanism includes an annular slide cavity 10 within the narrow diameter section 21, a retaining ring 11 slidably sealed within the annular slide cavity 10, and a linear actuator 12 that drives the retaining ring 11 to move up and down to open and close the overflow port 3. Normally, the linear actuator 12 controls the retaining ring 11 to move down until the overflow port 3 is closed, allowing normal filtration. When excessive filter cake accumulates at the edge of the filter plate 7 and needs cleaning, the linear actuator 12 drives the retaining ring 11 to move up, opening the overflow port 3. The filter cake is then discharged through the overflow port 3 into the annular flow channel 4, eliminating the need to disassemble the device for cleaning. Combined with the openable and closable overflow port 3, the filter cake can be automatically discharged at regular intervals without disassembling the filter components, thus improving overall production efficiency and saving the company significant time and costs. The linear actuator 12 can be a pneumatic cylinder, hydraulic cylinder, or electric push rod.

[0034] The scraper 9 is a conical spiral scraper with a rigid support and a flexible strip on the side that fits against the filter plate 7. The conical spiral scraper is adapted to the conical structure of the filter plate 7. Specifically, the taper of the scraper 9 is consistent with the taper of the filter plate 7, so that the flexible strip of the scraper 9 can fit tightly against the surface of the filter plate 7, ensuring that the filter residue on the filter plate 7 can be scraped off completely and effectively during rotation. The spiral direction of the scraper 9 matches the rotation direction of the motor 8, and its outer edge is fitted with the inner wall of the retaining ring 11. When the motor 8 starts, the rotation direction of the motor 8 is the direction of the spiral convex surface of the scraper 9. When the motor 8 rotates in the predetermined direction, the spiral structure of the scraper 9 can generate an outward thrust, pushing the filter residue along the slope of the filter plate 7 to move towards the edge of the filter plate 7. Since the rapeseed oil filter residue is relatively viscous, it is difficult to guarantee the discharge effect of the filter residue by simply relying on the inclined surface of the filter plate 7. By pushing the filter residue outward by the scraper 9, the filter residue can be thrown outward and quickly discharged from the overflow port 3.

[0035] Reference Figure 1-2 The bottom surface of the retaining ring 11 is an inclined surface that matches the slope of the filter plate 7, so that the retaining ring 11 can fit the inclined surface of the filter plate 7 when pressed together, thereby ensuring the sealing effect of the overflow port 3 and reducing the risk of rapeseed oil leakage during the filtration process.

[0036] Reference Figure 4 A splined shaft 92 is mounted on the top surface of the drive shaft 91. The output end of the motor 8 is provided with a splined groove 81 that is compatible with the splined shaft 92. When the top cover 5 is installed, the splined shaft 92 at the output end of the motor 8 is inserted into the splined groove 81. The splined shaft 92 and the splined groove 81 cooperate to ensure effective transmission between the motor 8 and the drive shaft 91. At the same time, the splined shaft 92 and the splined groove 81 can be axially inserted and removed, making it convenient to remove the top cover 5.

[0037] Reference Figure 1-4The bottom of the wide-diameter section 23 is folded inward to form a fixed edge 26 welded to the outer wall of the collection tank 1. The fixed edge 26 closes the bottom of the annular flow channel 4, forming a discharge space enclosed by the wide-diameter section 23, the collection tank 1, and the fixed edge 26. The discharged filter residue falls into the discharge space for collection. An inclined guide block 25 is provided on the fixed edge 26. A water inlet 28 corresponding to the high side of the inclined guide block 25 and a discharge trough 27 corresponding to the low side of the inclined guide block 25 are installed on the wide-diameter section 23. The filter residue is discharged into the inclined guide block 25. The filter cake is collected on the inclined surface of the guide block 25 and discharged to the waste bucket or other external receiving and collecting device through the discharge trough 27. The water inlet 28 can output water flow to promote the discharge of filter cake on the inclined guide block 25. The filter cake is discharged by an independent annular flow channel 4. With the addition of an openable and closable overflow port 3, the filter cake and the filtered clean oil are discharged separately, which effectively avoids the problem of filter cake mixing with oil and achieves complete separation of oil and filter cake. This avoids the problem of secondary pollution caused by oil and filter cake sharing the same outlet.

[0038] The working principle of this utility model is as follows:

[0039] During the rapeseed oil refining process, the decolorizing agent adsorbs pigments and other impurities in the oil and forms adsorption particles. The refined rapeseed oil mixed with the decolorizing agent particles is injected into the filter chamber through the feed pipe 6 on the top surface of the top cover 5. At this time, the linear actuator 12 controls the baffle ring 11 to move down until the overflow port 3 is closed, ensuring that the filtration operation is carried out in a closed environment.

[0040] After the rapeseed oil enters the filtration chamber, it is filtered through the filter plate 7 under the action of gravity. The filter plate 7 has a conical structure that is narrow at the top and wide at the bottom, forming a slope that slopes outward from the center, which has a larger filtration area. It also allows the filter residue to flow naturally towards the edge of the filter plate 7 under the action of gravity. The sloping surface is conducive to the filter residue gradually accumulating towards the edge of the filter plate 7 along the slope during the filtration process, reducing the accumulation of filter residue in the central area of ​​the filter plate 7, thereby reducing the filtration resistance and improving the filtration efficiency. The filtered clean oil enters the collection chamber for storage, while the decolorizing agent particles are trapped on the filter plate 7.

[0041] As the filtration time increases, the filter residue on the filter plate 7 gradually increases. At this time, the motor 8 starts and rotates in a predetermined direction, driving the drive shaft 91 to rotate. This causes multiple scraper components 9 to rotate while maintaining contact with the surface of the filter plate 7. The spiral direction of the scraper components 9 matches the rotation direction of the motor 8. The rotation direction of the motor 8 is the direction of the spiral convex surface of the scraper components 9. The spiral structure of the scraper components 9 can generate an outward thrust, pushing the filter residue along the slope of the filter plate 7 to move towards the edge of the filter plate 7, thus re-exposing the filter holes on the filter plate 7, thereby reducing filtration resistance and increasing filtration speed.

[0042] When excessive filter residue accumulates at the edge of the filter plate 7 and needs to be cleaned, the linear actuator 12 drives the retaining ring 11 to move upward, opening the overflow port 3, and the filter residue is discharged through the overflow port 3 into the annular flow channel 4.

[0043] The discharged filter residue falls into the discharge space for collection. The filter residue gathers at a lower position on the inclined surface of the inclined guide block 25 and is discharged to the waste bucket or other external receiving and collection device through the discharge trough 27. At the same time, the water inlet 28 outputs water flow to promote the discharge of filter residue on the inclined guide block 25.

Claims

1. A rapeseed oil refining filtration apparatus, characterized in that, The system includes a collection bucket (1) with an opening at the top. A connecting bucket (2) is also connected to the top of the collection bucket (1). The connecting bucket (2) includes, from bottom to top, a narrow diameter section (21), an outwardly expanding bulging section (22), and a wide diameter section (23) with a diameter larger than that of the collection bucket (1). The lower end of the wide diameter section (23) is fitted over the collection bucket (1) and connected to it. An annular overflow port (3) is formed between the bulging section (22) and the top surface of the collection bucket (1). An annular connection is formed between the wide diameter section (23) and the outer wall of the collection bucket (1) that communicates with the overflow port (3). The narrow diameter section (21) is equipped with a top cover (5). A filter mechanism is provided between the collection bucket (1) and the connecting bucket (2). The filter mechanism includes a filter plate (7) fixedly installed at the top opening of the collection bucket (1) and a motor (8) installed on the top cover (5). The filter plate (7) is rotatably connected to a drive shaft (91) that is connected to the output shaft of the motor (8). Multiple scraping parts (9) that are in contact with the surface of the filter plate (7) are fixedly installed on the side wall of the drive shaft (91). An overflow control mechanism for opening and closing the overflow port (3) is provided on the edge of the filter plate (7).

2. A rapeseed oil refining filter device according to claim 1, characterised in that, The overflow control mechanism includes an annular slide cavity (10) opened in the narrow diameter section (21), a retaining ring (11) that is sealed and slidably disposed in the annular slide cavity (10), and a linear actuator (12) that drives the retaining ring (11) to rise and fall to open and close the overflow port (3).

3. A rapeseed oil refining filter device according to claim 1 or 2, characterized in that The filter plate (7) is a conical structure that is narrow at the top and wide at the bottom, forming a slope that slopes outward from the center.

4. A rapeseed oil refining filter device according to claim 3, characterised in that: The scraper (9) is a conical spiral scraper with a rigid support structure, and a soft strip is provided on the side that is in contact with the filter plate (7). The conical spiral scraper is adapted to the conical filter plate (7), and the outer edge of the conical spiral scraper is in clearance fit with the inner wall of the retaining ring (11).

5. A rapeseed oil refining filter device according to claim 1, characterized in that: The top surface of the drive shaft (91) is equipped with a spline shaft (92), and the output end of the motor (8) is provided with a spline groove (81) that is compatible with the spline shaft (92).

6. A rapeseed oil refining filter device according to claim 2, characterised in that: The linear actuator (12) is a pneumatic cylinder, a hydraulic cylinder, or an electric push rod.

7. A rapeseed oil refining filter device according to claim 3, characterised in that: The bottom of the wide diameter section (23) is folded inward to form a fixed side (26) welded to the outer wall of the collection bucket (1). An inclined guide block (25) is provided on the fixed side (26). A water inlet (28) on the high side of the inclined guide block (25) and a discharge trough (27) on the low side of the inclined guide block (25) are installed on the wide diameter section (23).

8. A rapeseed oil refining filter device according to claim 2, characterised in that: The bottom surface of the retaining ring (11) is an inclined surface that matches the slope of the filter plate (7).

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