Edible oil filtering system and edible oil filtering method

Abstract

The invention belongs to the technical field of edible oil production, and particularly relates to an edible oil filtering system and an edible oil filtering method.The edible oil filtering system comprises an inner filtering cylinder, a plurality of filtering holes A are formed in the inner filtering cylinder, two Z-shaped grooves are formed in the inner filtering cylinder, the inner filtering cylinder can rotate with the virtual axis of the inner filtering cylinder as the axis, and an outer filtering cylinder is connected to the inner filtering cylinder; the outer filter cartridge can slide relative to the inner filter cartridge, two cylindrical rods are fixedly connected to the outer filter cartridge, the two cylindrical rods are inserted into the two Z-shaped grooves respectively, a plurality of filter holes B are formed in the outer filter cartridge, a plurality of dredging structures A are arranged on the inner filter cartridge, the plurality of dredging structures A can dredge the plurality of filter holes B, and the plurality of dredging structures A can dredge the plurality of filter holes B; a filtering method of the edible oil filtering system for filtering edible oil comprises the following steps: step 1, pouring oil to be filtered into the inner filter cylinder; the automatic cleaning effect on the filter screen can be achieved, and convenience is brought to actual use.

Description

Technical Field

[0001] The present invention belongs to the technical field of edible oil production, and particularly relates to an edible oil filtration system and an edible oil filtration method. Background Art

[0002] In the field of edible oil production and processing, the filtration system is the core equipment for removing solid impurities in the oil, such as cake meal debris, coking particles, fibers, etc. In the prior art, when filtering high-viscosity oils, such as frying oil and animal fat, gums and phospholipids in the high-viscosity oils are prone to adhere and block the filter holes;

[0003] However, existing self-cleaning technologies, such as high-pressure backwashing and scraping mechanical cleaning processes, have obvious limitations. Backwashing relies on a high-pressure pump, with high energy consumption and a low removal rate of adhesive impurities. Unidirectional scraping cleaning has dead corners, and residual impurities cause secondary blockage of the filter holes after the cleaning components, causing great inconvenience to the use process. Summary of the Invention

[0004] In view of this, the technical problem to be solved by the present invention is to provide an edible oil filtration system and an edible oil filtration method, which can achieve a two-way automatic cleaning effect on the filter screen and bring convenience to actual use.

[0005] An edible oil filtration system includes an inner filter cylinder. A plurality of filter holes A are formed on the inner filter cylinder. Two Z-shaped grooves are formed on the inner filter cylinder. The inner filter cylinder can rotate around its own virtual axis. An outer filter cylinder is connected to the inner filter cylinder. The outer filter cylinder can slide relative to the inner filter cylinder. Two cylindrical rods are fixedly connected to the outer filter cylinder. The two cylindrical rods are respectively inserted into the two Z-shaped grooves. A plurality of filter holes B are formed on the outer filter cylinder. A plurality of dredging structures A are provided on the inner filter cylinder. The plurality of dredging structures A can dredge the plurality of filter holes B. A plurality of dredging structures B are provided on the outer filter cylinder. The plurality of dredging structures B can dredge the plurality of filter holes A.

[0006] The dredging structure A includes a connecting plate A. A plurality of dredging balls A are slidably connected to the connecting plate A. A compression spring A is fixedly connected between each dredging ball A and the connecting plate A. A plurality of the connecting plates A are provided. A plurality of through grooves are formed on the inner filter cylinder. The plurality of connecting plates A are detachably connected to the inner filter cylinder by screwing bolts into the plurality of connecting plates A. An arc chamfer B is provided on each filter hole B. The arc chamfer B is arranged on the side facing the inner filter cylinder.

[0007] The dredging structure B includes a connecting ring, and a plurality of U-shaped frames are detachably connected to the connecting ring through bolts. A connecting plate B is connected to the U-shaped frames, and a plurality of dredging balls B are slidably connected to the connecting plate B. A compression spring B is fixedly connected between each dredging ball B and the connecting plate B. A plurality of long grooves are formed in the outer filter cylinder, and a rubber layer is fixedly connected to each long groove. An arc chamfer A is provided on each filter hole A, and the arc chamfer A is arranged on the side facing the outer filter cylinder.

[0008] A scraping rod is connected to each of the U-shaped frames.

[0009] A plurality of the scraping rods are respectively slidably connected to a plurality of the U-shaped frames, and a tension spring is fixedly connected between each scraping rod and the U-shaped frame. A plurality of triangular strips are arranged in the inner filter cylinder.

[0010] A filtering method of an edible oil filtering system for filtering edible oil, the method comprising the following steps:

[0011] Step 1: Pour the oil to be filtered into the inner filter cylinder;

[0012] Step 2: Subsequently, according to the actual filtering requirement, operate the telescopic rods of the two electric push rods to extend or retract a suitable distance;

[0013] Step 3: Continuously rotate the inner filter cylinder on the fixed frame to complete the filtering;

[0014] Step 4: After the filtering is completed, operate the inner filter cylinder to stop rotating, and then continuously extend the telescopic rods of the two electric push rods upward;

[0015] Step 5: Then continuously retract the telescopic rods of the two electric push rods downward to complete the self-cleaning effect on the plurality of filter holes B and the plurality of filter holes A;

[0016] Step 6: Repeat Steps 1 to 5 multiple times to complete the filtering work. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described in detail below with reference to the drawings and specific implementation methods.

[0018] Figure 1 Schematic diagram of the structure of the rubber layer;

[0019] Figure 2 Schematic diagram of the structure of the filter hole B;

[0020] Figure 3 Schematic diagram of the structure of the outer filter cylinder;

[0021] Figure 4 Schematic diagram of the structure of the connecting ring;

[0022] Figure 5 Schematic diagram of the structure of the U-shaped frame;

[0023] Figure 6 It is a schematic structural diagram of the inner filter cartridge;

[0024] Figure 7 It is a schematic structural diagram of the bottom plate;

[0025] Figure 8 It is a schematic structural diagram of the conical surface guiding part;

[0026] Figure 9 It is a schematic sectional structural diagram of the connecting plate A;

[0027] Figure 10 It is a schematic structural diagram of the fixed frame;

[0028] Figure 11 and Figure 12 It is a schematic overall structural diagram of an edible oil filtration system. Detailed implementation manners

[0029] An edible oil filtration system includes an inner filter cartridge 401. Multiple filter holes A403 are provided on the inner filter cartridge 401. Two Z-shaped grooves 406 are provided on the inner filter cartridge 401. The inner filter cartridge 401 can rotate about its own virtual axis. An outer filter cartridge 101 is connected to the inner filter cartridge 401. The outer filter cartridge 101 can slide relative to the inner filter cartridge 401. Two cylindrical rods 105 are fixedly connected to the outer filter cartridge 101. The two cylindrical rods 105 are respectively inserted into the two Z-shaped grooves 406. Multiple filter holes B103 are provided on the outer filter cartridge 101. A bottom plate 407 is fixedly connected inside the inner filter cartridge 401. Multiple dredging structures A are provided on the inner filter cartridge 401. The multiple dredging structures A can dredge the multiple filter holes B103. Multiple dredging structures B are provided on the outer filter cartridge 101. The multiple dredging structures B can dredge the multiple filter holes A403. Each of the Z-shaped grooves 406 is composed of an upper arc groove, a vertical groove, and a lower arc groove.

[0030] Pour the oil to be filtered into the inner filter cartridge 401. The bottom plate 407 can receive the oil. Then rotate the inner filter cartridge 401. At this time, the two cylindrical rods 105 are located at the vertical groove positions of the two Z-shaped grooves 406. Further, the two cylindrical rods 105 will rotate synchronously with the inner filter cartridge 401. Further, the outer filter cartridge 101 will rotate synchronously with the inner filter cartridge 401. At this time, the multiple filter holes B103 on the outer filter cartridge 101 and the multiple filter holes A403 on the inner filter cartridge 401 are in one-to-one correspondence and completely connected positions. Further, during the process of the inner filter cartridge 401 rotating and driving the outer filter cartridge 101 to rotate synchronously, the oil in the inner filter cartridge 401 will be subjected to centrifugal force and thus be thrown out from the multiple mutually connected filter holes B103 and the inner filter cartridge 401. However, the impurities in the oil cannot pass through the mutually connected filter holes B103 and the inner filter cartridge 401, and thus remain inside the inner filter cartridge 401, thereby completing the filtration effect of the edible oil and removing the impurities doped in the production process;

[0031] During the filtration operation, the outer filter cartridge 101 can slide relative to the inner filter cartridge 401, so that a plurality of filter holes B103 and the plurality of inner filter cartridges 401, which were originally in a completely connected position, are gradually staggered from each other. Furthermore, the communication area between the filter holes B103 and the inner filter cartridge 401, that is, the space through which oil can pass, is adjusted, enabling the device to adapt to more actual filtration requirements and improving the application range of the device. By sliding the outer filter cartridge 101, the overlapping area between the filter holes A403 and the filter holes B103 is changed, realizing stepless adjustment of the filtration accuracy from large pores to fine-filter small pores, adapting to the working conditions of oil with different impurity contents, and further achieving the effect of adjusting the filtration accuracy without replacing the filter screen;

[0032] Furthermore, after the device has performed filtration operations for a period of time, the rotation of the inner filter cartridge 401 can be stopped regularly, and then the outer filter cartridge 101 is operated to continuously slide upward on the inner filter cartridge 401. During this process, the two cylindrical rods 105 will gradually enter the upper arc groove area of the two Z-shaped grooves 406. As the outer filter cartridge 101 continues to slide upward, the two cylindrical rods 105 will be gradually driven to rotate by the upper arc grooves of the two Z-shaped grooves 406, that is, the outer filter cartridge 101 and the inner filter cartridge 401 will rotate relative to each other, and then the outer filter cartridge 101 will gradually move upward in a clockwise spiral on the inner filter cartridge 401. During this process, a plurality of dredging structures B on the outer filter cartridge 101 will gradually contact a plurality of filter holes A403 along the spiral direction from bottom to top, and then gradually dredge each filter hole A403 along the spiral direction from bottom to top. Similarly, a plurality of dredging structures A on the inner filter cartridge 401 will also contact a plurality of filter holes B103 along the spiral direction from top to bottom, and then gradually dredge the plurality of filter holes B103 separately along the spiral direction from top to bottom. Furthermore, the effect of automatically dredging a plurality of filter holes A403 and a plurality of filter holes B103 is achieved, avoiding impurities from clogging in the plurality of filter holes A403 and the plurality of filter holes B103 and affecting subsequent filtration, and at the same time, the dredging steps can be completed without manual participation;

[0033] Furthermore, after the two cylindrical rods 105 pass through the upper arc groove area of the two Z-shaped grooves 406 during the dredging process, the outer filter cylinder 101 can be slid downward, so that the two cylindrical rods 105 pass through the lower arc groove area of the two Z-shaped grooves 406. Subsequently, the outer filter cylinder 101 is continuously slid downward, and the two cylindrical rods 105 are driven by the two lower arc grooves, thereby driving the outer filter cylinder 101 to move counterclockwise downward along the spiral direction on the inner filter cylinder 401. During this process, the multiple spiral structures B on the outer filter cylinder 101 will gradually contact the multiple filter holes A403 along the spiral direction from top to bottom, thereby performing a dredging operation on the multiple filter holes A403 in a direction different from that of the upper arc groove. Residual impurities that may not have been dredged due to angle or other reasons during the previous dredging operation are removed twice by the dredging operation in a different direction, improving the automatic dredging and cleaning effect on the blocked impurities. Similarly, the multiple dredging structures A on the inner filter cylinder 401 will also gradually contact the multiple filter holes B103 along the spiral direction from top to bottom, thereby achieving a cleaning effect opposite to the dredging direction of the upper arc groove on the multiple filter holes B103, comprehensively improving the cleaning effect on the multiple filter holes A403 and the multiple filter holes B103, and further improving the self-cleaning effect without manual participation;

[0034] That is, the dredging directions in the upward and downward stages are opposite, breaking the residual adhesion of impurities after single-direction cleaning, avoiding hard impact on the filter holes, extending the service life of the filter screen. At the same time, after the rotation of the inner filter cylinder 401 stops, the continuous sliding and rotational movement of the outer filter cylinder 101 are independent of the filtration process, ensuring complete cleaning.

[0035] The dredging structure A includes a connecting plate A501. A plurality of dredging balls A502 are slidably connected to the connecting plate A501. A compression spring A is fixedly connected between each dredging ball A502 and the connecting plate A501. A plurality of the connecting plates A501 are provided. A plurality of through grooves 405 are formed on the inner filter cylinder 401. The plurality of connecting plates A501 are detachably connected to the inner filter cylinder 401 by screwing bolts into the plurality of connecting plates A501. An arc chamfer B107 is provided on each filter hole B103. The arc chamfer B107 is arranged on the side facing the inner filter cylinder 401. The radius of the dredging ball A502 is smaller than the radius of the filter hole B103.

[0036] When the outer filter cylinder 101 performs a spiral upward movement operation along the clockwise direction on the inner filter cylinder 401, when the plurality of dredging balls A502 gradually pass through the positions where the plurality of filter holes B103 are located, the plurality of dredging balls A502 will be gradually inserted into the plurality of filter holes B103 under the elastic force of the compression spring A, thereby completing the dredging operation for the filter holes B103. Similarly, when the outer filter cylinder 101 performs a spiral downward movement operation along the counterclockwise direction on the inner filter cylinder 401, the plurality of dredging balls A502 can also complete the dredging operation through the elastic force applied by the compression spring A, thereby realizing the two-way dredging operation for the plurality of filter holes B103;

[0037] The setting of the arc chamfer B107 can enlarge the openings of multiple filter holes B103, so that during the dredging process, the dredging ball A502 can smoothly achieve the effect of inserting into the filter holes B103 from two different directions for dredging, thereby achieving the purpose of improving the automatic dredging effect. At the same time, it is convenient for multiple dredging balls A502 to smoothly move out of the multiple filter holes B103 after dredging, bringing convenience to the next dredging operation;

[0038] That is, the upward process:

[0039] When the outer filter cylinder 101 spirally ascends, the dredging ball A502 slides into the hole along the chamfer of the filter hole B103, and the compression spring A provides the elastic force for sliding in. After the dredging ball A502 penetrates into the filter hole B103, tangential scraping force is generated along with the spiral movement to strip the colloidal impurities attached to the filter hole B103. When the dredging ball A502 moves out of the filter hole B103, the compression spring A is gradually compressed, and the arc chamfer B107 guides the sphere to smoothly separate, avoiding the backflow of impurities.

[0040] The downward process:

[0041] The dredging ball A502 enters from the other side of the filter hole B103 to cover the dead corners not touched by the upward cleaning, improving the cleaning effect. At the same time, the two-way cleaning path can handle impurities with different adhesion characteristics, such as cleaning loose particles up and down and stripping stubborn impurities downward.

[0042] In the normal state without dredging, multiple filter holes B103 and multiple filter holes A403 are in a mutually connected position, so multiple dredging balls A502 are in a staggered position with multiple filter holes B103 to ensure the normal progress of the filtering operation;

[0043] The detachable connection setting of multiple connecting plates A501 enables the staff to disassemble and replace multiple connecting plates A501 only by loosening the bolts regularly, thereby maintaining the smooth progress of the self-cleaning operation for a long time.

[0044] Although the above structure increases the number of some parts, the two-way spiral dredging structure can achieve online self-cleaning through mechanical linkage without long-term shutdown. Complex and cumbersome cleaning operations by manual are no longer needed to maintain a high filtration efficiency. It is especially suitable for food processing scenarios that require continuous production. At the same time, it can also dynamically adjust the filtration accuracy according to the impurity content to meet the flexible production needs of multiple varieties of oil fluids on the same production line, and it can complete the self-cleaning of the equipment through reliable mechanical transmission in a high-temperature and high-humidity edible oil environment without relying on sensors and PLC control, greatly improving the operation continuity and operation stability, especially suitable for the filtration scenario of high-viscosity oil fluids.

[0045] The dredging structure B includes a connecting ring 301. A plurality of U-shaped frames 302 are detachably connected to the connecting ring 301 by bolts. A connecting plate B305 is connected to the U-shaped frames 302. A plurality of dredging balls B307 are slidably connected to the connecting plate B305. A compression spring B is fixedly connected between each dredging ball B307 and the connecting plate B305. A plurality of long slots are formed in the outer filter cylinder 101, and a rubber layer 102 is fixedly connected in each long slot. An arc chamfer A404 is provided on each filter hole A403, and the arc chamfer A404 is arranged on the side facing the outer filter cylinder 101. The plurality of connecting plates B305 can be detachably connected in the long slots by tightening the bolts.

[0046] During use, the staff can insert the plurality of connecting plates B305 into the plurality of long slots. Subsequently, when the outer filter cylinder 101 rotates, when the plurality of dredging balls B307 pass through the positions of the plurality of filter holes A403, the plurality of dredging balls B307 will be subjected to the elastic force of the compression spring B and thus tend to insert into the plurality of filter holes A403. At this time, the plurality of rubber layers 102 will undergo slight deformation, enabling the rubber layers 102 to insert into the plurality of filter holes A403, and then gradually dredging the plurality of filter holes A403. Combining with the upward and downward spiral movement of the outer filter cylinder 101, an efficient and comprehensive self-cleaning effect on the plurality of filter holes A403 can be achieved.

[0047] Furthermore, a plurality of convex blocks can be provided on the side of the rubber layer 102 facing the inner filter cylinder 401, so that the convex blocks can bear the subsequent effect of inserting into the plurality of filter holes A403 for dredging, and further facilitate pushing out the impurities blocked in the plurality of filter holes A403.

[0048] Embodiment 1 of using a rubber layer with a plurality of convex blocks:

[0049] When the device needs to clean hard and tightly packed impurities, such as carbonized particles in frying oil, conical convex blocks can be used. The sharp corners of the conical convex blocks produce a piercing effect when inserted into the filter holes A, peeling the blocked impurities from the inner wall of the filter holes and shearing and crushing them along the conical surface direction. The contact area of the cone tip is small, and the pressure per unit area is high, which can penetrate the stubborn blockage layer. At the same time, it is also suitable for deep cleaning of high-viscosity oils, such as animal fats, or fibrous impurities, such as plant debris in peanut oil. At the same time, the inclination of the conical surface can also guide the impurities to move towards the filter hole outlet, reducing the risk of backhaul.

[0050] Embodiment 2 of using a rubber layer with a plurality of convex blocks:

[0051] When the device needs to be cleaned for soft adhesive impurities such as gum and phospholipids, hemispherical bumps can be used. The arc surface of the hemispherical bump forms a surface contact with the inner wall of the filter hole, and the contact pressure is evenly distributed, reducing scratches on the inner wall of the filter hole and extending the life of the filter cartridge. At the same time, the curved surface can adapt to slight deformation or misalignment of the filter hole, improving the cleaning coverage rate. Furthermore, when the hemispherical bump is inserted into the filter hole, the disturbance to the oil flow is small, avoiding secondary deposition of impurities caused by turbulence;

[0052] Embodiment 3 using a rubber layer with multiple bumps:

[0053] A convex shape with a conical top and a hemispherical root can be formed at the top of the rubber layer 102, thereby taking into account both the penetration force and the durability effect, and further improving the comprehensiveness of the device use;

[0054] The rubber layer 102 can also prevent oil from leaking out from multiple long groove positions, ensuring the normal filtration operation of the device;

[0055] The setting of multiple arc chamfers A404 can expand the openings of multiple filter holes A403. Thus, during the dredging process, after the rubber layer 102 is driven by multiple dredging balls B307, it can smoothly achieve the effect of being inserted into the interior of the filter holes A403 in two different directions for dredging, thereby achieving the purpose of improving the automatic dredging effect;

[0056] The multiple U-shaped frames 302 and the connecting ring 301 are detachably connected by bolts, enabling the staff to connect an appropriate number of U-shaped frames 302 to the connecting ring 301 according to actual operation requirements. After a period of dredging operation, loosen the bolts of the multiple fixed connecting plates B305 and adjust the angle of the connecting ring 301, so that the multiple connecting plates B305 are inserted into different long grooves to complete the subsequent dredging operation. Thus, on the premise of reducing the accessory cost, a comprehensive dredging effect is achieved, bringing convenience to the actual use.

[0057] Each of the U-shaped frames 302 is connected with a scraping rod 304.

[0058] When the outer filter cartridge 101 moves spirally upward on the inner filter cartridge 401, the multiple scraping rods 304 will move synchronously with the multiple U-shaped frames 302. During this process, the multiple scraping rods 304 can scrape the front side positions of the multiple filter holes A403 to be dredged, removing the impurities originally on the front side of the multiple filter holes A403 on the inner wall of the inner filter cartridge 401 in advance;

[0059] That is, the scraper rod 304 removes loose impurities such as fiber clumps and coked particles attached to the filter hole entrance by shear force and extrusion stripping, reducing the resistance during the subsequent insertion of the dredging ball B307, ensuring that after treatment, the dredging ball B307 drives the protrusions of the rubber layer 102 to penetrate deep into the filter hole A403, and concentrates on cleaning the remaining dense blockages. At the same time, the pretreatment of the scraper rod 304 can cut off the fibers entangled at the filter hole entrance, avoiding the fibers from being stuck when the rubber layer 102 is inserted, significantly reducing the dredging resistance of the filter hole A403 and extending the service life of the rubber layer. At the same time, by not having to consider the effect of excessive accumulation of impurities causing the rubber layer to be unable to be smoothly inserted into the filter hole A403, the interval time of the regular self-inspection of the equipment is extended, making it more suitable for production scenarios with high requirements for continuous production performance.

[0060] The plurality of scraping rods 304 are slidably connected to the plurality of U-shaped frames 302 , respectively. A tension spring 303 is fixedly connected between each scraping rod 304 and the U-shaped frame 302 . The inner filter cartridge 401 is provided with a plurality of triangular bars 402 .

[0061] When the outer filter cartridge 101 moves upward in a spiral on the inner filter cartridge 401, the plurality of scraper rods 304 will move synchronously with the plurality of U-shaped frames 302, so that the plurality of scraper rods 304 scrape the impurities at the position to be dredged, and the continuously moving scraper rods 304 will continuously push the impurities. When the scraper rods 304 pass the position where the triangular bar 402 is located, the scraper rods 304 will overcome the elastic force of the tension spring 303 on the U-shaped frame 302 and slide, so that the scraper rods 304 It can drive the impurities to pass through the triangular bar 402 smoothly. After the impurities pass over the triangular bar 402 due to inertia, they are blocked by the vertical surface on the back of the triangular bar 402 and cannot retreat with the scraper rod 304, thereby ensuring that when the outer filter cartridge 101 is subsequently moved downward in a spiral on the inner filter cartridge 401, the impurities will not be brought back by the reverse moving scraper rod 304, thereby avoiding excessive impurities from accumulating in front of multiple filter holes A403 again, and ensuring that the subsequent top-to-bottom dredging operation can proceed smoothly.

[0062] Each scraper rod 304 is provided with a plurality of deformation petals 306 , and each deformation petal 306 is made of elastic material.

[0063] When the outer filter cartridge 101 is moving downward in a spiral on the inner filter cartridge 401, the scraper rod 304 will gradually come into contact with the bottom plate 407. As the outer filter cartridge 101 gradually moves downward, the plurality of deformable petals 306 will gradually be squeezed and deformed and expanded, thereby further closely fitting to the inner wall of the inner filter cartridge 401. As the scraper rod 304 continues to move, the impurities attached to the inner wall of the inner filter cartridge 401 are scraped more finely, further improving the cleaning effect of the subsequent secondary dredging operation from top to bottom.

[0064] A long rod is fixedly connected to the lower side of each scraping rod 304, and the long rod passes through the multiple deformation petals 306 connected to the scraping rod 304, thereby vertically positioning the multiple deformation petals 306, ensuring that the multiple deformation petals 306 can only expand during the subsequent movement of the scraping rod 304 without being skewed, thereby ensuring the scraping effect.

[0065] That is, in the spiral upward stage, the rigid part of the scraper rod 304 removes large impurities, and the deformable petals 306 do not expand, so as to avoid interfering with the main cleaning process;

[0066] In the spiral descending stage, the deformed petals 306 expand, and the elastic edges penetrate into the micro grooves around the filter holes A403 to remove the adhered colloids and micron-sized particles, thus improving the cleaning effect;

[0067] The rigid scraping rod 304 removes impurities from the main body, and the elastic deformation petal 306 handles the edge residue, thereby achieving rough and fine double-stage cleaning and improving the cleaning effect.

[0068] It also includes a fixed frame 601, on which the inner filter cartridge 401 is rotatably connected, a first motor is fixedly connected to the fixed frame 601, a gear is fixedly connected to the output shaft of the first motor, a gear ring is fixedly connected to the inner filter cartridge 401, and the gear and the gear ring are meshed.

[0069] When driving the inner filter cartridge 401 to rotate and then perform centrifugal filtration, the first motor is started and then the gear is driven to rotate by the first motor, so that the gear transmission ring drives the inner filter cartridge 401 to rotate on the fixed frame 601 to complete the subsequent centrifugal filtration operation.

[0070] A conical guide portion 104 is fixedly connected to the outer filter cartridge 101 .

[0071] The conical guide portion 104 can guide the thrown-out oil so that the oil can smoothly drip along the conical guide portion 104 to the outside of the device to achieve the subsequent filtering purpose.

[0072] It also includes an electric push rod 201 , which is provided with two electric push rods 201 . The telescopic rods of the two electric push rods 201 are fixedly connected with a moving block 202 . The outer filter cartridge 101 is fixedly connected with a rotating ring 106 , which is rotatably connected in the two moving blocks 202 .

[0073] The arrangement of the rotating ring 106 rotatably connected in the two moving blocks 202 enables the two outer filter cartridges 101 to rotate synchronously with the inner filter cartridge 401 through the cooperation of the Z-shaped groove 406 and the cylindrical rod 105 when the inner filter cartridge 401 rotates. When performing a dredging operation, the rotation of the inner filter cartridge 401 is stopped, and then the telescopic rods of the two electric push rods 201 are extended or retracted, so that the outer filter cartridge 101 can slide relatively on the inner filter cartridge 401, and then the subsequent spiral upward and spiral downward self-cleaning operations are performed.

[0074] A filtering method of the described edible oil filtering system for filtering edible oil, the method comprising the following steps:

[0075] Step 1: Pour the oil to be filtered into the inner filter cylinder 401;

[0076] Step 2: Subsequently, according to the actual filtering requirement, operate the telescopic rods of the two electric push rods 201 to extend or retract an appropriate distance;

[0077] Step 3: Keep the inner filter cylinder 401 rotating on the fixed frame 601 to complete the filtering;

[0078] Step 4: After the filtering is completed, operate the inner filter cylinder 401 to stop rotating, and then continuously extend the telescopic rods of the two electric push rods 201 upward;

[0079] Step 5: Then continuously retract the telescopic rods of the two electric push rods 201 downward to complete the self-cleaning effect on the multiple filter holes B103 and the multiple filter holes A403;

[0080] Step 6: Repeat Steps 1 to 5 multiple times to complete the filtering work.

Claims

1. An edible oil filtration system, characterized in that, It includes an inner filter cartridge. A plurality of filter holes A are formed in the inner filter cartridge. Two Z-shaped grooves are formed in the inner filter cartridge. The inner filter cartridge can rotate about its own virtual axis. An outer filter cartridge is connected to the inner filter cartridge. The outer filter cartridge can slide relative to the inner filter cartridge. Two cylindrical rods are fixedly connected to the outer filter cartridge. The two cylindrical rods are respectively inserted into the two Z-shaped grooves. A plurality of filter holes B are formed in the outer filter cartridge. A plurality of dredging structures A are provided on the inner filter cartridge. The plurality of dredging structures A can dredge the plurality of filter holes B. A plurality of dredging structures B are provided on the outer filter cartridge. The plurality of dredging structures B can dredge the plurality of filter holes A.

2. The edible oil filtration system according to claim 1, wherein, The dredging structure A includes a connecting plate A. A plurality of dredging balls A are slidably connected to the connecting plate A. A compression spring A is fixedly connected between each dredging ball A and the connecting plate A. A plurality of the connecting plates A are provided. A plurality of through grooves are formed in the inner filter cartridge. The plurality of connecting plates A are detachably connected to the inner filter cartridge by screwing bolts into the plurality of connecting plates A. An arc chamfer B is provided on each filter hole B. The arc chamfer B is arranged on the side facing the inner filter cartridge.

3. The edible oil filtering system according to claim 1, wherein, The dredging structure B includes a connecting ring. A plurality of U-shaped frames are detachably connected to the connecting ring by bolts. A connecting plate B is connected to the U-shaped frame. A plurality of dredging balls B are slidably connected to the connecting plate B. A compression spring B is fixedly connected between each dredging ball B and the connecting plate B. A plurality of long grooves are formed in the outer filter cartridge. A rubber layer is fixedly connected in each long groove. An arc chamfer A is provided on each filter hole A. The arc chamfer A is arranged on the side facing the outer filter cartridge.

4. An edible oil filtration system according to claim 3, characterized in that, Each U-shaped frame is connected with a scraping rod.

5. An edible oil filtration system according to claim 4, wherein, The plurality of scraping rods are respectively slidably connected to the plurality of U-shaped frames. A tension spring is fixedly connected between each scraping rod and the U-shaped frame. A plurality of triangular strips are arranged in the inner filter cartridge.

6. An edible oil filtration system according to claim 5, characterized in that, A plurality of deformation flaps are arranged on each scraping rod.

7. An edible oil filtering system according to claim 1, characterized in that, It further includes a fixing frame. The inner filter cartridge is rotatably connected to the fixing frame.

8. An edible oil filtration system according to claim 7, wherein, A conical surface guiding part is fixedly connected to the outer filter cartridge.

9. The oil filtering system according to claim 8, wherein, It further includes two electric push rods. Moving blocks are fixedly connected to the telescopic rods of the two electric push rods. A rotating ring is fixedly connected to the outer filter cartridge. The rotating ring is rotatably connected in the two moving blocks.

10. A filtering method for filtering edible oil by an edible oil filtering system according to claim 9, characterized in that, The method includes the following steps: Step 1: Pour the oil to be filtered into the inner filter cartridge. Step 2: Subsequently, according to the actual filtering requirement, operate the telescopic rods of the two electric push rods to extend or retract an appropriate distance. Step 3: Keep the inner filter cartridge rotating on the fixing frame to complete the filtering. Step 4: After the filtering is completed, operate the inner filter cartridge to stop rotating, and then continuously extend the telescopic rods of the two electric push rods upward. Step 5: Then continuously retract the telescopic rods of the two electric push rods downward to complete the self-cleaning effect on the plurality of filter holes B and the plurality of filter holes A. Step 6: Repeat Steps 1 to 5 multiple times to complete the filtering work.

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