An online filtering and purifying device for raw rapeseed oil

Abstract

This invention discloses an online filtration and purification device for raw rapeseed oil, relating to the field of rapeseed oil filtration and purification technology. It includes an oil press with a centrifugal filtration mechanism located below it. A conversion filtration mechanism is connected to the side of the centrifugal filtration mechanism. The conversion filtration mechanism includes a purification box with a conversion frame rotatably mounted inside. The conversion frame has an installation groove, in which a filter box is assembled. A docking mechanism is located on the top inner side of the purification box for docking with the installation groove and transferring oil. A disassembly and assembly mechanism is located on the side of the purification box, at the opening of the conversion frame. The disassembly and assembly mechanism includes a disassembly and assembly box fixed to the side of the purification box. Two positioning shafts are slidably arranged inside the disassembly and assembly box for fixing and transferring the filter box. This invention employs a multi-stage filtration process to complete the filtration and purification of the oil, and uses a replacement mechanism to quickly replace the failed filter layer, eliminating manual replacement operations and ensuring continuous operation.

Description

Technical Field

[0001] This invention relates to the field of rapeseed oil filtration and purification technology, and in particular to an online filtration and purification device for raw rapeseed oil. Background Technology

[0002] Rapeseed oil is one of the main edible vegetable oils in my country. The crude oil obtained after pressing contains a large amount of suspended oil residue, colloids, phospholipids, and fine particles. Without efficient filtration and purification, these impurities directly affect the clarity, oxidative stability, and edible quality of the oil. Currently, conventional purification processes after rapeseed oil pressing mostly employ natural sedimentation, plate and frame filtration, or single centrifugation, which have significant technical shortcomings: natural sedimentation is time-consuming and inefficient, failing to meet the needs of continuous production; plate and frame filtration is prone to clogging, filter cake cleaning is cumbersome, and filter cloth replacement and consumable consumption are high; while centrifugal filtration can quickly remove coarse residue, its effect on removing fine impurities and colloids is limited, making it difficult to obtain a high-clarity finished oil.

[0003] In existing two- or multi-stage filtration processes, direct filtration with filter cloth is commonly used, which suffers from problems such as filter layer instability due to oil impact, impurity penetration, and filter short-circuiting. Some processes use diatomaceous earth as a filter aid, which can improve accuracy, but diatomaceous earth is easily dispersed by oil flow, has uneven distribution, and is inconvenient to replace after the filter layer becomes clogged, making continuous and stable operation impossible. Furthermore, traditional filtration devices are mostly fixed structures, requiring machine shutdown for filter element cleaning and replacement, affecting production efficiency. Filter aids such as diatomaceous earth are mostly disposable, lacking an effective recycling mechanism, resulting in material waste and environmental pressure. This invention proposes a continuous, efficient, filter layer-stable, and easy-to-clean / replace filtration and purification device. It employs a multi-stage filtration process to complete the filtration of oil and uses a replacement mechanism to quickly replace the failed filter layer, eliminating manual replacement operations and ensuring continuous operation. Summary of the Invention

[0004] To address the aforementioned technical problems, this invention proposes a continuous, efficient, stable, and easy-to-clean filtration and purification device. It employs a multi-stage filtration process to complete the filtration and purification of oil, and uses a replacement mechanism to quickly replace the filter layer that has failed, eliminating the need for manual replacement and ensuring the continuity of operation.

[0005] The technical solution used in this invention is as follows: an online filtration and purification device for raw rapeseed oil, including an oil press, with a centrifugal filtration mechanism installed below the oil press; a conversion filtration mechanism is connected to the side of the centrifugal filtration mechanism; the conversion filtration mechanism includes a purification box, with a conversion frame rotatably installed inside the purification box, the conversion frame being a hollow structure with one open end; the conversion frame has uniformly arranged mounting grooves in a ring, and a filter box is fixedly assembled in the mounting grooves by a fixing mechanism, with mating holes one and two distributed at both ends of the filter box; two layers of brackets are arranged inside the filter box, with two layers of filter cloth laid between the two layers of brackets, and diatomaceous earth particles filling the space between the two layers of filter cloth; a docking mechanism is provided on the top of the inner side of the purification box for docking with the mounting groove and transferring oil; a disassembly and assembly mechanism is provided on the side of the purification box and at the open end of the conversion frame for disassembling and transferring the filter box, the disassembly and assembly mechanism including a disassembly and assembly box fixed to the side of the purification box, with two positioning shafts slidably arranged inside the disassembly and assembly box, the positioning shafts simultaneously engaging with mating holes one and two to fix and transfer the filter box.

[0006] As a preferred embodiment, the centrifugal filtration mechanism includes a centrifugal shell connected to the bottom outlet of the oil press, an oil storage tank connected to the bottom of the centrifugal shell, an outer centrifugal cylinder fixedly installed inside the centrifugal shell, an inner centrifugal cylinder rotatably installed inside the outer centrifugal cylinder, a mounting shell fixedly installed inside the centrifugal shell and below the outer centrifugal cylinder, a centrifugal motor fixedly installed inside the mounting shell, the centrifugal motor being used to drive the inner centrifugal cylinder, and the oil undergoing centrifugal filtration treatment in the inner centrifugal cylinder; the oil storage tank and the top of the purification tank are connected by a transmission pipe, with a pump body and a control valve respectively installed at both ends of the transmission pipe for transmitting and controlling the oil, and the end of the transmission pipe connected to the top of the purification tank is connected to a docking mechanism.

[0007] As a preferred embodiment, the docking mechanism includes a control electric cylinder fixedly installed on the top of the purification box, a buffer box fixedly installed on the telescopic rod of the control electric cylinder, a telescopic transmission pipe fixedly installed at the bottom of the buffer box, and a vibration motor fixedly installed at one end of the buffer box for generating vibration; the top of the buffer box and the end of the transmission pipe are connected through the telescopic transmission pipe.

[0008] As a preferred embodiment, an angle motor is fixedly installed on the side of the purification box, which is used to drive the conversion frame; a guide channel is fixedly installed on the side of the purification box, which extends at an inclined angle to the hollow area inside the conversion frame to receive the guided oil.

[0009] As a preferred embodiment, the fixing mechanism includes a telescopic plate telescopically mounted on the mounting groove, a fixing rod fixedly mounted on the telescopic plate, and a spring connecting the telescopic plate and the mounting groove to provide a reset force; a pressure roller is rotatably mounted on the telescopic plate, and a push block is slidably mounted on the mounting groove, the push block having an inclined area for contacting and pushing the pressure roller; a push rod is fixedly mounted at the end of the push block, and a spring is sleeved on the push rod, with both ends of the spring connected between the end of the push rod and the mounting groove to provide a reset force; fixing holes are respectively opened on both sides of the filter box, and the fixing rod cooperates with the fixing holes to fix the filter box; a push electric cylinder is fixedly mounted on the inner side of the end of the disassembly box facing the purification box to push and control the spring.

[0010] As a preferred embodiment, the disassembly and assembly mechanism includes a motor fixedly mounted at the bottom of the disassembly and assembly box, and a lead screw rotatably mounted at the bottom of the disassembly and assembly box. The lead screw is driven by the motor. A disassembly and assembly groove is provided on one side of the disassembly and assembly box, and a sliding groove is provided at the bottom of the disassembly and assembly box. A sliding seat is slidably fitted on the sliding groove, and the sliding seat and the lead screw form a helical pair.

[0011] As a preferred embodiment, a deflection motor is fixedly mounted on the slide block, a deflection seat is fixedly mounted on the output shaft of the deflection motor, two positioning shafts are rotatably mounted on the deflection seat, a transmission motor is fixedly mounted on the transmission belt, and the ends of the two positioning shafts are connected to the output shaft of the transmission motor via the transmission belt for driving.

[0012] As a preferred embodiment, a locking block and a positioning end plate are fixedly provided on the positioning shaft, and the filter box is limited and fixed by the locking block and the positioning end plate.

[0013] The beneficial effects of this invention compared with the prior art are: (1) In this invention, after a certain period of use, the filter box that has failed to filter can be replaced. That is, when the filter box is located in the position of the disassembly box, the positioning shaft moves and extends to the inside of the purification box and passes through the mating hole one and mating hole two on the filter box; after the locking block passes through the mating hole two, the locking block is misaligned relative to the mating hole two, and then the filter box is positioned and fixed by the positioning end plate and the locking block; the fixing rod releases the fixing of the side of the filter box, and the slide one drives the positioning shaft to move outward to remove the filter box, replacing manual labor. Replacement operation; (2) In this invention, during filtration, the vibration motor can be controlled to generate vibration, thereby causing the filter box to vibrate, so that the diatomaceous earth particles inside the filter box vibrate, effectively avoiding the diatomaceous earth particles from clumping and local blockage, and ensuring the stability of the filtration flow rate; (3) In this invention, the 300-mesh filter cloth and diatomaceous earth particles set inside the filter box can filter the oil, thereby filtering out particles larger than 0.05mm and residual glue residue; buffering the speed of the oil can prevent the oil from strongly impacting the diatomaceous earth particles, causing uneven diatomaceous earth particle distribution and affecting the filtration effect. Attached Figure Description

[0014] Figure 1This is a schematic diagram of the overall orthographic projection structure of the present invention.

[0015] Figure 2 This is a schematic diagram of the cross-sectional structure of the centrifuge shell of the present invention.

[0016] Figure 3 This is a schematic diagram of the centrifuge outer cylinder structure of the present invention.

[0017] Figure 4 This is a schematic diagram of the installation structure of the purification box and conversion rack of the present invention.

[0018] Figure 5 This is a schematic diagram of the buffer box structure of the present invention.

[0019] Figure 6 This is a schematic diagram of the bottom structure of the buffer box of the present invention.

[0020] Figure 7 This is a schematic diagram of the installation structure of the conversion frame and bracket of the present invention.

[0021] Figure 8 This is a schematic diagram of the conversion frame structure of the present invention.

[0022] Figure 9 This is a schematic diagram of the filter box installation of the present invention.

[0023] Figure 10 This is a schematic diagram of the filter box and fixing mechanism of the present invention.

[0024] Figure 11 For the present invention Figure 10 A schematic diagram of the structure at the A mark in the middle.

[0025] Figure 12 This is a partial structural diagram of the fixing mechanism of the present invention.

[0026] Figure 13 This is a schematic cross-sectional view of the purification chamber of the present invention.

[0027] Figure 14 This is a schematic diagram of the disassembly and assembly structure of the present invention.

[0028] Figure 15 This is a schematic diagram of the disassembly and assembly mechanism of the present invention.

[0029] Figure 16 This is a partial structural diagram of the disassembly and assembly mechanism of the present invention.

[0030] Attached reference numerals: 1-Oil press; 2-Centrifuge shell; 3-Oil storage tank; 4-Purification tank; 5-Collection tank; 6-Centrifuge outer cylinder; 7-Centrifuge inner cylinder; 8-Mounting shell; 9-Centrifuge motor; 10-Transfer pipe; 11-Angle motor; 12-Conversion frame; 1201-Mounting groove; 13-Control electric cylinder; 14-Buffer box; 15-Telescopic transfer pipe; 16-Vibration motor; 17-Filter box; 1701-Bracket; 1702-Fixing hole; 1703-Matching hole one; 1704 -Matching Hole 2; 18-Telescopic Plate; 19-Fixing Rod; 20-Spring 1; 21-Pressure Roller; 22-Push Block; 23-Push Rod; 24-Spring 2; 25-Guide Channel; 26-Disassembly Box; 2601-Disassembly Slot; 2602-Slide Channel; 27-Motor 1; 28-Screw 1; 29-Push Electric Cylinder; 30-Slide Seat 1; 31-Deflection Motor; 32-Deflection Seat; 33-Positioning Shaft; 34-Transmission Belt; 35-Transmission Motor; 36-Positioning End Plate; 37-Clamping Block. Detailed Implementation

[0031] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0032] like Figures 1 to 16 As shown, an online filtration and purification device for raw rapeseed oil includes an oil press 1, with a centrifugal filtration mechanism located below the oil press 1. A conversion filtration mechanism is connected to the side of the centrifugal filtration mechanism. The conversion filtration mechanism includes a purification box 4, with a conversion frame 12 rotatably mounted inside the purification box 4. The conversion frame 12 has a hollow structure and one open end. The conversion frame 12 has uniformly arranged mounting grooves 1201 in a ring shape. A filter box 17 is fixedly assembled in the mounting grooves 1201 by a fixing mechanism. The filter box 17 has mating holes 1703 and 1704 distributed at both ends. Two layers of brackets are arranged inside the filter box 17. 1701, Two layers of filter cloth are laid between the two layers of brackets 1701, and diatomaceous earth particles are filled between the two layers of filter cloth; A docking mechanism is provided on the inner top of the purification box 4 for docking with the installation groove 1201 and transferring oil; A disassembly and assembly mechanism is provided on the side of the purification box 4 and at the opening end of the conversion frame 12 for disassembling and transferring the filter box 17. The disassembly and assembly mechanism includes a disassembly and assembly box 26 fixed to the side of the purification box 4. Two positioning shafts 33 are slidably arranged inside the disassembly and assembly box 26. The positioning shafts 33 cooperate with the first mating hole 1703 and the second mating hole 1704 to fix and transfer the filter box 17.

[0033] The centrifugal filtration mechanism includes a centrifugal shell 2 connected to the bottom outlet of the oil press 1. An oil storage tank 3 is connected to the bottom of the centrifugal shell 2. An outer centrifugal cylinder 6 is fixedly installed inside the centrifugal shell 2. An inner centrifugal cylinder 7 is rotatably installed inside the outer centrifugal cylinder 6. An installation shell 8 is fixedly installed inside the centrifugal shell 2 and below the outer centrifugal cylinder 6. A centrifugal motor 9 is fixedly installed inside the installation shell 8. The centrifugal motor 9 is used to drive the inner centrifugal cylinder 7. The oil is centrifuged and filtered in the inner centrifugal cylinder 7. The oil storage tank 3 is connected to the top of the purification tank 4 through a transmission pipe 10. A pump body and a control valve are respectively installed at both ends of the transmission pipe 10 for transmitting and controlling the oil. The end of the transmission pipe 10 connected to the top of the purification tank 4 is connected to a docking mechanism.

[0034] The docking mechanism includes a control cylinder 13 fixedly mounted on the top of the purification tank 4, a buffer tank 14 fixedly mounted on the telescopic rod of the control cylinder 13, a telescopic transmission pipe 15 fixedly mounted at the bottom of the buffer tank 14, and a vibration motor 16 fixedly mounted at one end of the buffer tank 14 for generating vibration; the top of the buffer tank 14 and the end of the transmission pipe 10 are connected through the telescopic transmission pipe 15; an angle motor 11 is fixedly mounted on the side of the purification tank 4 for driving the conversion frame 12; a guide groove 25 is fixedly mounted on the side of the purification tank 4, and the guide groove 25 extends at an inclined angle into the hollow area inside the conversion frame 12 for receiving the guided oil.

[0035] The fixing mechanism includes a telescopic plate 18 telescopically mounted on the mounting groove 1201, a fixing rod 19 fixedly mounted on the telescopic plate 18, and a spring 20 for providing a reset force connected between the telescopic plate 18 and the mounting groove 1201; a pressure roller 21 is rotatably mounted on the telescopic plate 18, and a push block 22 is slidably mounted on the mounting groove 1201, with an inclined area on the push block 22 for contacting and pushing the pressure roller 21; a push rod 23 is fixedly mounted at the end of the push block 22, and a spring 24 is sleeved on the push rod 23, with both ends of the spring 24 connected between the end of the push rod 23 and the mounting groove 1201 to provide a reset force; fixing holes 1702 are respectively opened on both sides of the filter box 17, and the fixing rod 19 cooperates with the fixing holes 1702 to fix the filter box 17; a push cylinder 29 is fixedly mounted on the inner side of the end of the disassembly box 26 facing the purification box 4 to push and control the spring 24.

[0036] The disassembly and assembly mechanism includes a motor 27 fixedly installed at the bottom of the disassembly and assembly box 26, and a lead screw 28 rotatably installed at the bottom of the disassembly and assembly box 26. The lead screw 28 is driven by the motor 27. A disassembly and assembly groove 2601 is provided on one side of the disassembly and assembly box 26, and a sliding groove 2602 is provided at the bottom of the disassembly and assembly box 26. A sliding seat 30 is slidably fitted on the sliding groove 2602. The sliding seat 30 and the lead screw 28 form a helical pair.

[0037] A deflection motor 31 is fixedly mounted on the slide block 30. A deflection seat 32 is fixedly mounted on the output shaft of the deflection motor 31. Two positioning shafts 33 are rotatably mounted on the deflection seat 32. A transmission motor 35 is fixedly mounted on the transmission belt 34. The ends of the two positioning shafts 33 are connected to the output shaft of the transmission motor 35 via the transmission belt 34. A locking block 37 and a positioning end plate 36 are fixedly mounted on the positioning shaft 33. The filter box 17 is limited and fixed by the locking block 37 and the positioning end plate 36.

[0038] Operating principle: After rapeseed is pressed in the oil press 1, the oil is transferred to the centrifuge shell 2 for centrifugal filtration. During operation, the working temperature is controlled at 70-80°C, the rotation speed is 3000-4000 r / min, and the process takes 3-8 minutes. This removes phosphorus residue, colloids, and fine residue from the oil, resulting in a clear oil free of suspended matter. The oil passes through the inner centrifuge cylinder 7 and flows downwards along the inner side of the outer centrifuge cylinder 6, eventually being stored in the oil storage tank 3. It is then transferred to the purification tank 4 via a transfer pump at the end of the transfer pipe 10. A control valve at the end of the transfer pipe 10 controls the flow of oil. A control cylinder 13 moves the buffer tank 14. The telescopic transfer pipe 15 adapts to the movement of the buffer tank 14. The buffer tank 14 is aligned with the inner side of the mounting groove 1201. The telescopic transmission pipe 15 is located above the filter box 17, and the vibrating part of the vibration motor 16 contacts the end of the filter box 17. The oil is transmitted downward from the buffer box 14. The telescopic transmission pipe 15 can buffer the speed of the oil. When the oil is transmitted to the filter box 17, the filter box 17 can also buffer the speed of the oil. The 300-mesh filter cloth and diatomaceous earth particles set inside the filter box 17 can filter the oil, which can filter out particles larger than 0.05mm and residual glue residue. The speed buffering of the oil can prevent the oil from strongly impacting the diatomaceous earth particles, causing uneven distribution of the diatomaceous earth particles and affecting the filtration effect. Furthermore, the vibration motor 16 can be controlled to vibrate, thereby causing the filter box 17 to vibrate, so that the diatomaceous earth particles inside the filter box 17 vibrate, effectively avoiding the agglomeration and local blockage of diatomaceous earth particles and ensuring a stable filtration flow rate.

[0039] After the oil passes through the filter box 17, it is received and guided by the guide channel 25 and then transported to the outer collection box 5 for collection. After a certain period of use, the filter box 17 that has failed can be replaced. This is done by controlling the rotation of the conversion frame 12 via the angle motor 11 to change the position of the filter box 17 that has failed. When the filter box 17 is located in the position of the disassembly box 26, the screw 28 driven by the motor 27 rotates, causing the slide 30 to move. This moves the positioning shaft 33 to extend to the inside of the purification box 4 and through the mating hole 1703 and mating hole 1704 on the filter box 17. After the locking block 37 passes through the mating hole 1704, the drive motor 35 controls the rotation of the positioning shaft 33, causing the locking block 37 to be misaligned relative to the mating hole 1704. This allows the positioning end plate 36 and the locking block 37 to position and fix the filter box 17. Simultaneously, by pushing the end of the push rod 23 through the electric cylinder 29, the push block 22 slides, the pressure roller 21 is pushed, that is, the telescopic plate 18 and the fixed rod 19 move outward to release the fixation on the side of the filter box 17. The slide seat 30 drives the positioning shaft 33 to move outward to remove the filter box 17. Then, the deflection motor 31 drives the deflection seat 32 to rotate, so that the filter box 17 is transferred to the outside of the disassembly and assembly box 26 along the disassembly and assembly groove 2601. The operator can remove the filter box 17 and install the unused filter box 17. The positioning shaft 33 is used to reassemble it into the purification box 4. For the installation of the filter box 17, after the filter box 17 is transferred into the installation groove 1201, the push rod 23 is released by pushing the electric cylinder 29. The telescopic plate 18 and the fixed rod 19 spring back and fix the filter box 17.

[0040] It should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This way of describing the specification is only for clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An online filtration and purification device for raw rapeseed oil, comprising an oil press (1), wherein a centrifugal filtration mechanism is provided below the oil press (1); characterized in that: A conversion filtration mechanism is connected to the side of the centrifugal filtration mechanism; the conversion filtration mechanism includes a purification box (4), and a conversion frame (12) is rotatably installed inside the purification box (4). The conversion frame (12) is a hollow structure with one end open; the conversion frame (12) is provided with a uniformly spaced mounting groove (1201) in a ring shape. A filter box (17) is fixedly assembled in the mounting groove (1201) by a fixing mechanism. The filter box (17) has a first mating hole (1703) and a second mating hole (1704) distributed at both ends; two layers of brackets (1701) are arranged inside the filter box (17), and two layers of... The filter cloth has two layers of filter cloth filled with diatomaceous earth particles; the inner top of the purification box (4) is provided with a docking mechanism for docking with the installation groove (1201) and transferring oil; the side of the purification box (4) and the opening end of the conversion frame (12) are provided with a disassembly and assembly mechanism for disassembling and transferring the filter box (17). The disassembly and assembly mechanism includes a disassembly and assembly box (26) fixed on the side of the purification box (4). Two positioning shafts (33) are slidably provided inside the disassembly and assembly box (26). The positioning shafts (33) cooperate with the first mating hole (1703) and the second mating hole (1704) to fix and transfer the filter box (17).

2. The online filtration and purification device for raw rapeseed oil according to claim 1, characterized in that: The centrifugal filtration mechanism includes a centrifugal shell (2) connected to the bottom outlet of the oil press (1), an oil storage tank (3) connected to the bottom of the centrifugal shell (2), a centrifugal outer cylinder (6) fixedly installed inside the centrifugal shell (2), a centrifugal inner cylinder (7) rotatably installed inside the centrifugal outer cylinder (6), an installation shell (8) fixedly installed inside the centrifugal shell (2) and below the centrifugal outer cylinder (6), a centrifugal motor (9) fixedly installed inside the installation shell (8), the centrifugal motor (9) is used to drive the centrifugal inner cylinder (7), and the oil is centrifuged and filtered in the centrifugal inner cylinder (7); the oil storage tank (3) and the top of the purification tank (4) are connected by a transmission pipe (10), and a pump body and a control valve are respectively installed at both ends of the transmission pipe (10) for transmitting and controlling the oil liquid, and the end of the transmission pipe (10) connected to the top of the purification tank (4) is connected to the docking mechanism.

3. The online filtration and purification device for raw rapeseed oil according to claim 1, characterized in that: The docking mechanism includes a control cylinder (13) fixedly installed on the top of the purification box (4), a buffer box (14) fixedly installed on the telescopic rod of the control cylinder (13), a telescopic transmission pipe (15) fixedly installed at the bottom of the buffer box (14), and a vibration motor (16) fixedly installed at one end of the buffer box (14) for generating vibration; the top of the buffer box (14) and the end of the transmission pipe (10) are connected through the telescopic transmission pipe (15).

4. The online filtration and purification device for raw rapeseed oil according to claim 1, characterized in that: An angle motor (11) is fixedly installed on the side of the purification box (4), and the angle motor (11) is used to drive the conversion frame (12); a guide groove (25) is fixedly installed on the side of the purification box (4), and the guide groove (25) extends at an inclined angle to the hollow area inside the conversion frame (12) for receiving the guided oil.

5. The online filtration and purification device for raw rapeseed oil according to claim 1, characterized in that: The fixing mechanism includes a telescopic plate (18) telescopically mounted on the mounting groove (1201), a fixing rod (19) fixedly mounted on the telescopic plate (18), and a spring (20) for providing a reset force connecting the telescopic plate (18) and the mounting groove (1201); a pressure roller (21) is rotatably mounted on the telescopic plate (18), and a push block (22) is slidably mounted on the mounting groove (1201). The push block (22) has an inclined area for contacting and pushing the pressure roller (21), and the end of the push block (22) is fixedly mounted on... A push rod (23) is provided, and a second spring (24) is fitted on the push rod (23). The two ends of the second spring (24) are respectively connected between the end of the push rod (23) and the mounting groove (1201) to provide a reset spring force. Fixing holes (1702) are respectively opened on both sides of the filter box (17). The fixing rod (19) cooperates with the fixing hole (1702) to fix the filter box (17). A push cylinder (29) is fixedly installed on the inner side of the end of the disassembly box (26) facing the purification box (4) to push and control the second spring (24).

6. The online filtration and purification device for raw rapeseed oil according to claim 1, characterized in that: The disassembly and assembly mechanism includes a motor (27) fixedly installed at the bottom of the disassembly and assembly box (26) and a lead screw (28) rotatably installed at the bottom of the disassembly and assembly box (26). The lead screw (28) is driven by the motor (27). A disassembly and assembly groove (2601) is provided on one side of the disassembly and assembly box (26), and a sliding groove (2602) is provided at the bottom of the disassembly and assembly box (26). A sliding seat (30) is slidably fitted on the sliding groove (2602). The sliding seat (30) and the lead screw (28) form a screw pair.

7. The online filtration and purification device for raw rapeseed oil according to claim 6, characterized in that: A deflection motor (31) is fixedly mounted on the slide (30), a deflection seat (32) is fixedly mounted on the output shaft of the deflection motor (31), two positioning shafts (33) are rotatably mounted on the deflection seat (32), a transmission motor (35) is fixedly mounted on the transmission belt (34), and the ends of the two positioning shafts (33) are connected to the output shaft of the transmission motor (35) via the transmission belt (34).

8. The online filtration and purification device for raw rapeseed oil according to claim 1, characterized in that: The positioning shaft (33) is fixedly provided with a locking block (37) and a positioning end plate (36), which limit and fix the filter box (17) by the locking block (37) and the positioning end plate (36).

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