A method and device for filtering variegated epoxy soybean oil

Abstract

The invention relates to the field of soybean oil purification, and discloses a method and device for filtering varicolored epoxy soybean oil. The method and device comprise a decolorizing tank, wherein a vertical filter tube is installed in the decolorizing tank, the filter tube is filled with activated carbon, and a switching mechanism is installed on the filter tube, wherein the switching mechanism is used to switch the distribution of the activated carbon in the filter tube. The varicolored epoxy soybean oil filtering device provides a switching mechanism, wherein the switching mechanism switches the position of the unused activated carbon above the filter tube with the used activated carbon below the filter tube, so that the contact pipe between the filter tube and the epoxy soybean is refilled with the unused activated carbon, thereby ensuring the normal passing rate of the annular soybean oil and avoiding the situation that the pores and the surface of the activated carbon are filled with pollutants due to the activated carbon reaching a saturated adsorption state, resulting in poor passability of the activated carbon, and reducing the flow through the activated carbon adsorption zone, thereby affecting the filtering efficiency.

Description

Technical Field

[0001] The invention relates to the field of soybean oil purification, and in particular to a method and a device for filtering variegated epoxy soybean oil. Background Art

[0002] Epoxidized soybean oil is a type of soybean oil that has been epoxidized. Epoxidation is a chemical reaction that involves adding oxygen or hydrogen peroxide to oils and fats to cause an epoxidation reaction to produce epoxidized oil. Epoxidized soybean oil has high stability and heat resistance and is commonly used in food processing, coatings, plastics, cosmetics and other fields. It is a light yellow viscous oily liquid at room temperature. When impurities such as free fatty acids, moisture, metal ions, and peroxides are present in the epoxy soybean oil, the color of the epoxy soybean oil will change. During food processing, this will affect the color and taste of the food, and ultimately the quality of the product. In order to avoid the impact of epoxy soybean oil on production, the epoxy soybean oil needs to be filtered during food processing to purify the impurities in the epoxy soybean oil and avoid the impact of epoxy soybean oil doped with impurities on food processing.

[0003] For example, the patent with publication number CN105238497B, published on April 24, 2018, discloses a decolorization tank for epoxy soybean oil production, including a decolorization tank body, which is composed of a tank cover and a tank body. An insulation jacket is arranged around the outer periphery of the tank body, a steam active layer is arranged between the insulation jacket and the tank body, and the steam active layer is connected with a steam pipe. The inner part of the decolorization tank body is divided into an activated carbon adsorption area and a liquid decolorization area. The activated carbon adsorption area is connected with the liquid decolorization area. The activated carbon adsorption area is provided with activated carbon filter layers with increasing thickness from top to bottom, and each layer of activated carbon filter layer is arranged on a grid; a spiral auger is arranged horizontally inside the liquid decolorization area, and the transmission end of the spiral auger is connected by a driving mechanism arranged outside the decolorization tank body, an alkali solution injection device is arranged on the left side of the outside of the tank body, and a hydrogen peroxide injection device is arranged on the right side of the outside; the patent has reasonable design, simple structure, low cost, thorough decolorization, high quality of epoxy soybean oil products produced, uniform decolorization, no overlapping phenomenon, and reasonable equipment control.

[0004] When the existing epoxidized soybean oil is decolorized, activated carbon is often used as an adsorbent to adsorb impurities. The activated carbon in the activated carbon adsorption zone is in a static state. When the material passes through the activated carbon adsorption zone, it often enters from one end of the activated carbon adsorption zone and flows out from the other end. Therefore, the activated carbon at the entrance end of the activated carbon adsorption zone and the impurity-rich material are first in contact. The activated carbon at the entrance end of the activated carbon adsorption zone can absorb more impurities. When the activated carbon is used for a long time, when the activated carbon at the entrance end of the activated carbon reaches a saturated adsorption state, the pores and surface of the activated carbon will be filled with pollutants, resulting in poor permeability of the activated carbon, which reduces the flow rate through the activated carbon adsorption zone and affects the filtration efficiency. Summary of the invention

[0005] The purpose of the present invention is to provide a method and device for filtering variegated epoxy soybean oil to solve the technical problems in the related art.

[0006] In order to achieve the above object, the present invention provides the following technical solutions:

[0007] The invention discloses an epoxy soybean oil mixed color filtering device, comprising a decolorizing tank, a vertical filter tube installed in the decolorizing tank, the filter tube is filled with activated carbon, and a switching mechanism is installed on the filter tube for switching the distribution of the activated carbon in the filter tube.

[0008] The above also includes a conveying component, which conveys epoxidized soybean oil into the decolorization tank. An oil outlet pipe is installed on the side wall of the filter tube, one end of the oil outlet pipe is connected to the filter tube, and the other end of the oil outlet pipe passes through the decolorization tank.

[0009] As mentioned above, the filter tube is divided into a discharge section, a storage section and a filtration section from top to bottom. The diameter of the storage section is longer than that of the discharge section and the filtration section. An opening is provided on the discharge section, and the opening is used to discharge the activated carbon that has reached a saturated adsorption state out of the filter tube or to add unused activated carbon material into the storage section.

[0010] As mentioned above, an oil outlet is provided on the side wall of the filter tube, and the oil outlet pipe is slidably connected to the filter tube. The oil outlet pipe includes a connecting sleeve and a guide pipe that are interconnected. The connecting sleeve is arranged on the outer wall of the filter tube, and a connecting port is provided on the inner circular surface of the connecting sleeve. The connecting port is fitted with the oil outlet on the side wall of the filter tube, and a filter screen is detachably installed at the connecting port of the connecting sleeve.

[0011] As mentioned above, a guide plate is installed inside the material storage section, a guide groove is opened on the guide plate, the filter section is slidably installed in the guide groove, the replacement mechanism includes a traction part, the traction part is connected to the filter section, the traction part pulls the filter section to slide along the guide groove, and drives the filter section to pass through the material storage section and enter the discharge section.

[0012] As described above, the filtering section includes a first filter plate and a second filter plate arranged up and down, a first slider is installed on the side wall of the second filter plate, and a vertical fixed slide groove is opened on the side wall of the material storage section, one end of the first slider is inserted into the fixed slide groove, and a plurality of connecting plates are installed on the plate surface of the second filter plate close to the first filter plate, and the plurality of connecting plates are arranged at intervals along the circumference of the second filter plate, and a baffle plate is also arranged between adjacent connecting plates, and the plurality of baffle plates are fixedly installed on the plate surface of the first filter plate close to the second filter plate along the circumference of the first filter plate, and an annular groove is opened on the plate surface of the first filter plate close to the second filter plate, and the other section of the connecting plate is inserted into the annular groove, and a plurality of second sliders are fixedly installed on the side wall of the first filter plate, and the plurality of second sliders are arranged at intervals along the circumference of the first filter plate, and the plurality of second sliders correspond one-to-one to the guide grooves on the plurality of guide plates.

[0013] As mentioned above, a plurality of filter holes are provided on the plate surface of the first filter plate, and the apertures of the plurality of filter holes gradually decrease from top to bottom, and the minimum diameter of the filter hole is sufficient for the activated carbon to pass through.

[0014] As mentioned above, a plurality of guide grooves are provided on the side wall of the discharge section, each guide groove includes a deflection section and a return section, the deflection section is inclined, one end of the deflection section is connected to the guide groove, and the other end of the deflection section is connected to the end of the return section away from the guide groove.

[0015] As mentioned above, the material storage section is also provided with a reset inclined plate, on which a reset groove is provided, one end of the reset groove is connected to an end of the return section close to the material storage section, and the other end of the reset groove is connected to an end of the guide groove close to the filtering section, and a blocking plate is rotatably installed at the connection between the reset groove and the guide groove, and the blocking plate can only be deflected in the direction of the guide groove, and the guide groove, the deflection section, the return section and the reset groove are connected end to end to form a quadrilateral structure.

[0016] A method for filtering epoxy soybean oil color filtrates, wherein the epoxy soybean oil color filtrates are filtered by an epoxy soybean oil color filtrates device. When filtering the epoxy soybean oil color filtrates, the method comprises the following steps:

[0017] S1: Filling activated carbon material into the storage section and the filtration section through the opening on the side wall of the discharge section.

[0018] S2: filtering the epoxy soybean oil through the filtering section to remove the impurities of the epoxy soybean oil.

[0019] S3: Take out and collect the activated carbon that has reached the saturated adsorption state inside the filtration section.

[0020] S4: Refill the activated carbon inside the filter section.

[0021] The beneficial effects of the present invention are as follows: in the above technical scheme, the exchange mechanism provided by the present invention exchanges the position of the unused activated carbon above the filter tube with the used activated carbon below the filter tube, so that the contact pipe between the filter tube and the epoxidized soybean is refilled with unused activated carbon, ensuring the normal passage rate of the annular soybean oil, avoiding the situation that the pores and surface of the activated carbon are filled with pollutants due to the activated carbon reaching a saturated adsorption state, resulting in the deterioration of the permeability of the activated carbon, and the flow rate through the activated carbon adsorption zone becomes smaller, thereby affecting the filtration efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0023] Figure 1 A front schematic diagram of an epoxy soybean oil variegated filtering device provided in an embodiment of the present invention;

[0024] Figure 2 A schematic diagram of the internal structure of a decolorizing tank provided in an embodiment of the present invention;

[0025] Figure 3 A front schematic diagram of an epoxy soybean oil variegated filtering device provided by another embodiment of the present invention;

[0026] Figure 4 A schematic diagram of the internal structure of a decolorizing tank provided in another embodiment of the present invention;

[0027] Figure 5 Another embodiment of the present invention provides Figure 4 A schematic cross-sectional view of AA;

[0028] Figure 6 A front structural schematic diagram of a filter segment provided by another embodiment of the present invention;

[0029] Figure 7 Another embodiment of the present invention provides Figure 6 A schematic cross-sectional view of BB;

[0030] Figure 8 A plan view of another embodiment of the present invention showing a guide groove, a deflection section, a return section and a reset groove on a material discharging section and a material storing section connected end to end.

[0031] Description of reference numerals:

[0032] 1. Decolorization tank; 2. Filter tube; 21. Discharge section; 22. Storage section; 221. Electromagnetic block; 23. Filter section; 231. First filter plate; 232. Second filter plate; 233. Connecting plate; 234. Shielding plate; 235. Ring groove; 236. Filter hole; 237. First slider; 238. Second slider; 239. Fixed slide; 24. Opening; 25. Oil outlet; 26. Guide plate; 261. Guide groove; 2 7. Guide groove; 271. Deflection section; 272. Return section; 28. Reset inclined plate; 281. Reset groove; 282. Blocking plate; 29. ​​Partition baffle; 291. Magnetic protrusion; 292. Storage groove; 293. Telescopic bar; 3. Activated carbon; 4. Switching mechanism; 41. Traction unit; 5. Conveying assembly; 6. Oil outlet pipe; 61. Connecting sleeve; 62. Export pipe; 63. Filter screen; 64. Connecting port; 65. Avoidance port. DETAILED DESCRIPTION

[0033] In order to enable those skilled in the art to better understand the technical solution of the present invention, Figure 1 -Attached Figure 8 , the present invention is further introduced in detail.

[0034] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "degree", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0035] An epoxy soybean oil miscellaneous color filtering device provided by an embodiment of the present invention comprises a vertically placed decolorizing tank 1, a vertical filter tube 2 is installed in the decolorizing tank 1, the filter tube 2 is filled with activated carbon 3, an oil outlet pipe 6 is installed on the side wall of the filter tube 2, wherein the connection position of the oil outlet pipe 6 is located at the midpoint of the filter tube 2, the filter tube 2 is rotatably connected to the oil outlet pipe 6, that is, the filter tube 2 can rotate relative to the oil outlet pipe 6, the rotating shaft of the filter tube 2 is coaxial with the oil outlet pipe 6, one end of the oil outlet pipe 6 is connected to the filter tube 2, and the other end of the oil outlet pipe 6 passes through the tank wall of the decolorizing tank 1 and extends to the outside of the decolorizing tank 1, the end of the oil outlet pipe 6 located outside the decolorizing tank 1 is also connected to a suction device, the suction device is used to extract the epoxy soybean oil inside the decolorizing tank 1 from the oil outlet pipe 6, and a replacement mechanism is installed on the filter tube 2 4. The exchange mechanism 4 is used to exchange the distribution of the activated carbon 3 in the filter tube 2, that is, to change the position of the unused activated carbon 3 in the filter tube 2 and the position of the used activated carbon 3, so that the used activated carbon 3 leaves the initial position, and the unused activated carbon 3 enters the position of the used activated carbon 3. In this embodiment, the exchange mechanism 4 is a driving motor, which is fixedly mounted on the outer wall of the decolorization tank 1. The output shaft of the driving motor passes through the tank wall of the decolorization tank 1 and is connected to the filter tube 2. It also includes a conveying component 5, which conveys epoxidized soybean oil into the decolorization tank 1. The conveying component 5 includes a storage container for storing the epoxidized soybean oil, and a conveying pipe for conveying the epoxidized soybean oil in the storage container to the inside of the decolorization tank 1, one end of the conveying pipe is connected to the storage container, and the other end of the conveying pipe is connected to the bottom of the decolorization tank 1.

[0036] Specifically, the conveying pipeline conveys the epoxidized soybean oil in the storage container to the inside of the decolorizing tank 1, and then the suction device starts to work. The epoxidized soybean oil passes through the filter tube 2 and flows out from the oil outlet pipe 6 under the suction of the suction device. When the epoxidized soybean oil passes through the filter tube 2, the epoxidized soybean oil contacts with the activated carbon 3 inside the filter tube 2. The activated carbon 3 absorbs the impurities inside the epoxidized soybean oil, and the purification process of the epoxidized soybean oil is completed, that is, the color filtration of the epoxidized soybean oil is realized. Among them, because the oil outlet pipe 6 is installed at the midpoint of the side wall of the filter tube 2, when the epoxidized soybean oil flows through the filter tube 2 and flows out from the oil outlet pipe 6, the epoxy The soybean oil only contacts the activated carbon 3 inside the filter tube 2 below the oil outlet pipe 6, so that the activated carbon 3 inside the filter tube 2 above the oil outlet pipe 6 is still in an unused state. When the activated carbon 3 inside the filter tube 2 below the oil outlet pipe 6 reaches a saturated adsorption state after a long period of use, the driving motor drives the filter tube 2 to rotate, driving the filter tube 2 to rotate 180°, so that the unused activated carbon 3 inside the filter tube 2 contacts with the epoxidized soybean oil. At this time, with the operation of the suction device, the epoxidized soybean oil contacts with the unused activated carbon 3 inside the filter tube 2 again, and the activated carbon 3 filters the epoxidized soybean oil.

[0037] It should be noted that, in the present embodiment, the liquid level of the epoxidized soybean oil introduced into the decolorization tank 1 through the delivery pipeline should not exceed the height of the connection position between the oil outlet pipe 6 and the filter tube 2, that is, the filter tube 2 located above the oil outlet pipe 6 is located above the liquid level of the epoxidized soybean oil, and then when the filter tube 2 is vertically inserted into the epoxyd soybean oil, the epoxyd soybean oil inside the filter tube 2 impregnates the activated carbon 3 inside the filter tube 2 to the height that is consistent with the liquid level of the epoxidized soybean oil inside the decolorization tank 1 (not exceeding the height of the connection position between the oil outlet pipe 6 and the filter tube 2), thereby avoiding the premature use of the activated carbon 3 inside the filter tube 2 above the oil outlet pipe 6; and, the suction device in the present embodiment is specifically a suction pump, which is a prior art and will not be elaborated here.

[0038] Among them, in this embodiment, the activated carbon 3 inside the filter tube 2 can only be replaced once. After the activated carbon 3 is replaced once, the activated carbon 3 inside the filter tube 2 reaches a saturated adsorption state. At this time, it is still necessary to replace the activated carbon 3 inside the filter tube 2 manually or automatically. When replacing the activated carbon 3 material inside the filter tube 2, the decolorization tank 1 needs to be opened and the filter tube 2 inside the decolorization tank 1 needs to be disassembled, which requires a long period of downtime. In order to improve the replacement efficiency of the activated carbon 3 inside the filter tube 2, one end of the filter tube 2 passes through the tank wall of the decolorization tank 1 and extends to the outside of the decolorization tank 1. The filter tube 2 is divided into a discharge section 21, a storage section 22 and a filtration section 23 from top to bottom, wherein the filtration The filter section 23 is located inside the decolorizing tank 1. There is a gap between the bottom end of the filter section 23 and the bottom end of the decolorizing tank 1. When the suction device performs suction processing on the epoxidized soybean oil, the epoxidized soybean oil enters the filter tube 2 from the above-mentioned gap. The diameter length of the storage section 22 is greater than the diameter length of the discharge section 21 and the filter section 23. That is, when the storage section 22 stores the filter section 23, the filter section 23 can completely enter the storage section 22. A plurality of openings 24 are provided on the discharge section 21. The plurality of openings 24 are arranged at intervals along the circumference of the discharge section 21. The openings 24 are used to discharge the activated carbon 3 that has reached a saturated adsorption state out of the filter tube 2 or to add unused activated carbon 3 materials into the storage section 22. A plurality of guide plates are installed inside the storage section 22. 26, the guide plate 26 is vertically arranged, and a plurality of guide plates 26 are arranged at intervals along the circumference of the material storage section 22. A guide groove 261 is provided on the guide plate 26, and the guide groove 261 is vertically arranged. A sliding member is installed on the side wall of the filter section 23, and the sliding member is slidably installed in the guide groove 261. When the filter section 23 slides into the inside of the material storage section 22, the plurality of guide plates 26 are arranged around the filter section 23, that is, when the filter section 23 slides inside the material storage section 22, the guide plate 26 does not affect the normal passage of the filter section 23 through the material storage section 22. At this time, the sliding member on the side wall of the filter section 23 slides along the guide groove 261. The exchange mechanism 4 includes a traction part 41. In this embodiment, the traction part 41 is specifically a linear telescopic rod such as an electric push rod. The linear telescopic rod is installed in the filter section 23. At the position of the discharge section 21 of the tube 2, a connecting piece is also installed on the telescopic end of the linear telescopic rod serving as the traction part 41, and an annular groove is provided at the bottom end of the connecting piece, which is coaxial with the linear telescopic rod. A plurality of connecting blocks are fixedly installed on the filter section 23, and the plurality of connecting blocks are arranged at intervals along the circumference of the filter section 23. The plurality of connecting blocks are all inserted into the annular groove, and the plurality of connecting blocks can rotate along the groove direction of the annular groove, so that the filter section 23 can rotate relative to the linear telescopic rod. At this time, the filter section 23 rotates with the axis of the linear telescopic rod as the center of the circle, and the linear telescopic rod pulls the filter section 23 to move upward, and the sliding piece on the side wall of the filter section 23 slides along the guide groove 261, and the linear telescopic rod drives the filter section 23 to pass through the storage section 22 and enter the discharge section 21.An oil outlet 25 is provided on the side wall of one end of the filter section 23 near the material storage section 22. The oil outlet pipe 6 is slidably connected to the filter tube 2. The oil outlet pipe 6 includes a connecting sleeve 61 and a guide pipe 62 that are interconnected. The connecting sleeve 61 is sleeved on the outer wall of the filter section 23. A connecting port 64 is provided on the inner circumference of the connecting sleeve 61. The connecting port 64 fits the oil outlet 25 on the side wall of the filter tube 2. A filter screen 63 is installed at the connecting port 64 of the connecting sleeve 61 by magnetic attraction. The filter screen 63 is used to prevent the activated carbon 3 from entering the inside of the oil outlet pipe 6.

[0039] Specifically, when the epoxy soybean oil needs to be filtered, the suction device starts to work. Under the action of the suction device, the epoxy soybean oil first passes through the bottom end of the decolorization tank 1 and then passes through the bottom end of the filter section 23 and enters the filter section 23. At this time, the epoxy soybean oil contacts the activated carbon 3 inside the filter section 23. The activated carbon 3 adsorbs impurities in the epoxy soybean oil, purifies the epoxy soybean oil, and removes the impurities of the epoxy soybean oil. The treated epoxy soybean oil flows out from the oil outlet 25 on the side wall of the filter tube 2, and enters the interior of the connecting sleeve 61 from the connecting port 64 on the connecting sleeve 61, and finally flows out of the decolorization tank 1 along the outlet pipe 62, completing the collection and processing of the filtered epoxy soybean oil. When the activated carbon 3 inside the filter tube 2 reaches a saturated adsorption state, the telescopic end of the linear telescopic rod serving as the traction part 41 begins to shrink, and the linear telescopic The telescopic section of the rod moves upward along the vertical direction with the filter section 23. At this time, the sliding part on the side wall of the filter section 23 slides upward along the vertical guide groove 261, and the filter section 23 moves vertically upward to leave the connecting sleeve 61. The oil outlet 25 on the side wall of the filter section 23 is separated from the connecting port 64 on the inner wall of the connecting sleeve 61. As the linear telescopic rod continues to move, the filter section 23 passes through the material storage section 22 and enters the discharge section 21. Then, the activated carbon 3 inside the filter section 23 is taken out manually or automatically, and new activated carbon 3 material is filled into the filter section 23 to complete the replacement process of the activated carbon 3 material inside the filter section 23. At this time, when replacing the activated carbon 3 material inside the filter tube 2, there is no need to open the decolorization tank 1, thereby improving the filling efficiency of the activated carbon 3 and indirectly improving the treatment efficiency of the decolorization tank 1 for epoxidized soybean oil.

[0040] Furthermore, the filter section 23 includes a first filter plate 231 and a second filter plate 232 arranged in an upper and lower manner. A plurality of filter holes 236 are provided on the plate surface of the first filter plate 231. The apertures of the plurality of filter holes 236 gradually decrease from top to bottom. The minimum diameter of the filter holes 236 can allow the activated carbon 3 to pass through. A first slider 237 is installed on the side wall of the second filter plate 232, and a vertical fixed slide groove 239 is provided on the side wall of the storage section 22. One end of the first slider 237 is inserted into the fixed slide groove 239. A plurality of connecting plates 233 are fixedly installed on the plate surface of the second filter plate 232 near the first filter plate 231. The plurality of connecting plates 233 are arranged at intervals along the circumference of the second filter plate 232, and adjacent connecting plates 233 are also arranged between them. The shielding plates 234 are fixedly installed on the plate surface of the first filter plate 231 close to the second filter plate 232 along the circumference of the first filter plate 231. The multiple connecting plates 233 and the multiple shielding plates 234 together constitute the side wall of the filter section 23, wherein the oil outlet 25 is opened on one of the connecting plates 233, and an annular groove 235 is opened on the plate surface of the first filter plate 231 close to the second filter plate 232. The other section of the connecting plate 233 is inserted into the annular groove 235, wherein the cross section of the annular groove 235 is inverted T shape, and the shape of the end of the connecting plate 233 inserted into the annular groove 235 is adapted to the shape of the cross section of the annular groove 235, that is, the second filter plate 232 is suspended on the first filter plate 231 through the connecting plate 233, and the first filter plate 232 is suspended on the first filter plate 231 through the connecting plate 233. A plurality of second sliders 238 are fixedly mounted on the side wall of the plate 231. The second sliders 238 are also sliding members. The plurality of second sliders 238 are arranged at intervals along the circumference of the first filter plate 231. The plurality of second sliders 238 correspond one-to-one to the guide grooves 261 on the plurality of guide plates 26. When the filter section 23 is located inside the material storage section 22, the plurality of second sliders 238 are respectively inserted into the corresponding guide grooves 261. A plurality of guide grooves 27 are provided on the side wall of the discharge section 21. Each guide groove 27 includes a deflection section 271 and a return section 272. The deflection section 271 is tilted. One end of the deflection section 271 is connected to the guide groove 261, and the other end of the deflection section 271 is connected to an end of the return section 272 away from the guide groove 261. The material storage section 22 is also provided with A reset inclined plate 28 is provided, and a reset groove 281 is provided on the reset inclined plate 28. One end of the reset groove 281 is connected to one end of the return section 272 close to the material storage section 22, and the other end of the reset groove 281 is connected to one end of the guide groove 261 close to the filtering section 23. A one-way mechanism is installed at the connection between the reset groove 281 and the guide groove 261, and the one-way mechanism can separate or connect the reset groove 281 with the guide groove 261. In this embodiment, the one-way mechanism includes a blocking plate 282, and the blocking plate 282 is rotatably installed at the connection between the reset groove 281 and the guide groove 261 through a torsion spring. In the initial state, the blocking plate 282 separates the reset groove 281 from the guide groove 261. When the second slider 238 moves from the reset groove 281 to the guide groove 261,At this time, the second slider 238 squeezes the blocking plate 282, driving the blocking plate 282 to rotate in the direction of the guide groove 261, so that the reset groove 281 is connected with the guide groove 261, and the guide groove 261, the deflection section 271, the return section 272 and the reset groove 281 are connected end to end to form a quadrilateral structure. In addition, in this embodiment, the multiple openings 24 on the discharge section 21 correspond to the intervals between the multiple adjacent connecting plates 233 one by one, that is, when the filter section 23 moves to the discharge section 21, the intervals between the adjacent connecting plates 233 are opened, and the multiple opened intervals correspond to the positions of the multiple openings 24 one by one;

[0041] In addition, a partition baffle 29 is further provided below the second filter plate 232, and a plurality of magnetic protrusions 291 are installed on the side wall of the partition baffle 29, and the plurality of magnetic protrusions 291 are arranged at intervals along the circumference of the partition baffle 29, wherein a plurality of avoidance openings 65 are provided on the inner side wall of the connecting sleeve 61, and the plurality of avoidance openings 65 are arranged at intervals along the circumference of the connecting sleeve 61, and the plurality of avoidance openings 65 correspond to the plurality of magnetic protrusions 291 one by one, and a plurality of electromagnetic blocks 221 are also provided at the bottom end of the storage section 22, and a plurality of The electromagnetic blocks 221 are arranged at circumferential intervals along the material storage section 22, and multiple electromagnetic blocks 221 correspond one-to-one to multiple magnetic protrusions 291. Multiple storage grooves 292 are provided on the adjacent surfaces of the second filter plate 232 and the partition baffle 29. The storage grooves 292 on the second filter plate 232 correspond one-to-one to the storage grooves 292 on the partition baffle 29. The second filter plate 232 and the partition baffle 29 are connected by a telescopic rod 293, and the compressed telescopic rod 293 is stored in the storage groove 292.

[0042] Specifically, when it is necessary to replace the activated carbon 3 material inside the filter section 23, the telescopic end of the linear telescopic rod serving as the traction part 41 begins to contract, and the telescopic section of the linear telescopic rod moves the filter section 23 upward in the vertical direction. At this time, the second filter plate 232 moves upward with the partition baffle 29, and the magnetic protrusion 291 on the partition baffle 29 passes through the avoidance port 65 on the connecting sleeve 61. When the partition baffle 29 moves to the bottom end of the material storage section 22, the electromagnetic block 221 on the material storage section 22 is energized to generate magnetism to adsorb the partition baffle 29. At this time, the partition baffle 29 blocks the bottom of the material storage section 22 to prevent the unused activated carbon 3 in the material storage section 22 from falling from the bottom of the material storage section 22 into the decolorization tank 1. As the filter section 23 continues to move upward, the activated carbon 3 in the material storage section 22 is prevented from falling into the decolorization tank 1 from the bottom of the material storage section 22. The telescopic bar 293 begins to extend, and then the filter section 23 passes through the material storage section 22 and enters the discharge section 21. The movement process of the filter section 23 in the material storage section 22 is as follows: the filter section 23 moves upward under the traction of the linear telescopic rod, and the blocking plate 282 connected to the reset groove 281 and the guide groove 261 in the initial state separates the reset groove 281 from the guide groove 261. Therefore, the second slider 238 can only slide along the guide groove 261 on the guide plate 26 under the traction of the linear telescopic rod until the filter section 23 enters the discharge section 21. When the filter section 23 moves in the material storage section 22, the shielding plate 234 blocks the gap between the adjacent connecting plates 233, so that the interior of the filter section 23 and the material storage section 22 are separated. The filter section 23 is separated from the filter section 23 by the internal separation to prevent the activated carbon 3 that has reached the saturated adsorption state in the filter section 23 from entering the storage section 22 and mixing with the unused activated carbon 3 in the storage section 22. When the filter section 23 enters the discharge section 21, the second slider 238 slides upward along the deflection section 271. Since the deflection section 271 is inclined, as the filter section 23 moves upward, the second filter plate 232 is hung on the first filter plate 231 through the connecting plate 233, and the second filter plate 232 follows the first slider 237 and is restricted by the fixed slide groove 239. Only the first filter plate 231 connected to the second slider 238 rotates, and the first filter plate 231 rotates synchronously with the shielding plate 234. At this time, the shielding plate 234 is away from the adjacent The gap between the connecting plates 233 makes the gap between the adjacent connecting plates 233 completely open, and then the staff or automatic equipment takes out the activated carbon 3 that has reached the saturated adsorption state inside the filter section 23 through the multiple openings 24 on the discharge section 21. After that, the telescopic end of the linear telescopic rod serving as the traction part 41 begins to extend, and the telescopic section of the linear telescopic rod moves downward with the filter section 23 in the vertical direction, and the filter section 23 re-enters the decolorization tank 1 through the material storage section 22. The downward movement process of the filter section 23 is as follows: under the traction of the linear telescopic rod, the second slider 238 of the filter section 23 moves toward the material storage section 22 along the return section 272 on the guide groove 27, and the second slider 238 enters the material storage section 22 through the return section 272.At this time, the filter section 23 follows the second slider 238 and enters the material storage section 22 synchronously. When the filter section 23 moves upward through the deflection section 271, the first filter plate 231 rotates, so that the shielding plate 234 moves away from the gap between the adjacent connecting plates 233, and the gap between the adjacent connecting plates 233 is completely opened. As a result, a channel (the gap between the adjacent connecting plates 233) exists on the side wall of the filter section 23 at this time. As the telescopic section of the linear telescopic rod moves downward with the filter section 23 in the vertical direction, the activated carbon 3 in the material storage section 22 passes through the filter. The channel on the side wall of the filter section 23 and the multiple filter holes 236 on the first filter plate 231 enter the interior of the filter section 23. After the channel on the side wall of the filter section 23 is closed, the activated carbon 3 continues to enter the interior of the filter section 23 from the filter holes 236 on the first filter plate 231. Because the minimum pore size of the filter holes 236 can also allow the activated carbon 3 to pass through, it is ensured that the activated carbon 3 can stably enter the interior of the filter section 23, completing the refilling of the activated carbon 3 material in the filter section 23, and when the filter section 23 slides down inside the storage section 22, the second slider 23 8 slides along the reset groove 281. Since the guide groove 261, the deflection section 271, the return section 272 and the reset groove 281 are connected end to end to form a quadrilateral structure, when the second slider 238 slides along the reset groove 281, the second slider 238 rotates with the first filter plate 231 in the opposite direction (relative to the rotation direction of the first filter plate 231 when rising), so that the shielding plate 234 gradually approaches the gap between the adjacent connecting plates 233 and gradually closes the gap between the adjacent connecting plates 233. When the filter section 23 slides and contacts the baffle plate 282, the baffle plate 282 deflects toward the direction of the guide groove 261, and the reset groove 281 is connected with the guide groove 261. As the filter section 23 moves downward, the telescopic bar 293 is compressed. When the second filter plate 232 contacts the partition baffle 29, the electromagnetic block 221 is powered off and loses its magnetism. The second slider 238 brings the filter section 23 and the partition baffle 29 back to the lowest end of the guide groove 261. At this time, the filter section 23 is located inside the decolorizing tank 1, and the replacement process of the activated carbon 3 inside the filter section 23 is completed.

[0043] In another embodiment of the present invention, a method for filtering out rusty epoxy soybean oil is provided, wherein the rusty epoxy soybean oil is filtered out by an rusty epoxy soybean oil filtering device. When filtering out rusty epoxy soybean oil, the method comprises the following steps:

[0044] S1: The unused activated carbon 3 material is filled into the storage section 22 through the opening 24 on the side wall of the discharge section 21 manually or automatically, and the activated carbon 3 material enters the filter section 23 through the first filter plate 231, completing the initial filling of the activated carbon 3 material in the filter section 23;

[0045] S2: After completing the filling process of the activated carbon 3, the suction device starts to work. Under the action of the suction device, the epoxy soybean oil enters the filter section 23 from the gap between the bottom end of the filter section 23 and the bottom end of the decolorization tank 1. At this time, the epoxy soybean oil contacts the activated carbon 3 inside the filter section 23. The activated carbon 3 adsorbs impurities in the epoxy soybean oil, purifies the epoxy soybean oil, and removes the impurities of the epoxy soybean oil. The treated epoxy soybean oil flows out from the oil outlet 25 on the side wall of the filter tube 2, and enters the inside of the connecting sleeve 61 from the connecting opening 24 on the connecting sleeve 61, and finally flows out of the decolorization tank 1 along the outlet pipe 62, completing the collection and processing of the filtered epoxy soybean oil. The activated carbon 3 is used to filter the epoxy soybean oil for a long time, and the activated carbon 3 reaches a saturated adsorption state;

[0046] S3: When the activated carbon 3 reaches the saturated adsorption state, the telescopic end of the linear telescopic rod as the traction part 41 begins to shrink, and the telescopic section of the linear telescopic rod moves the filter section 23 upward in the vertical direction. At this time, the second filter plate 232 moves upward with the partition baffle 29, and the magnetic protrusion 291 on the partition baffle 29 passes through the avoidance port 65 on the connecting sleeve 61. When the partition baffle 29 moves to the bottom end of the storage section 22, the electromagnetic block 221 on the storage section 22 is energized to generate a magnetic The partition baffle 29 is adsorbed, and the partition baffle 29 blocks the bottom of the storage section 22 to prevent the unused activated carbon 3 in the storage section 22 from falling into the decolorizing tank 1 from the bottom of the storage section 22. As the filtering section 23 continues to move upward, the telescopic bar 293 begins to extend, and then the filtering section 23 moves upward under the traction of the linear telescopic rod. The blocking plate 282 connected to the reset groove 281 and the guide groove 261 in the initial state resets the groove 281. The filter section 23 is separated from the guide groove 261, so the second slider 238 can only slide along the guide groove 261 on the guide plate 26 under the traction of the linear telescopic rod until the filter section 23 enters the inside of the discharge section 21. When the filter section 23 enters the inside of the discharge section 21, the second slider 238 slides upward along the deflection section 271. Because the deflection section 271 is inclined, as the filter section 23 moves upward, the second filter plate 232 follows the first slider 237 and is restricted by the fixed slide groove 239. Only the first filter plate 231 connected to the second slider 238 rotates, and the first filter plate 231 rotates synchronously with the shielding plate 234. At this time, the shielding plate 234 is away from the gap between the adjacent connecting plates 233, so that the gap between the adjacent connecting plates 233 is completely opened. Then the staff or automatic equipment takes out the activated carbon 3 that has reached the saturated adsorption state in the filter section 23 through the opening 24 on the discharge section 21, and completes the collection and treatment of the used activated carbon 3.

[0047] S4: the telescopic end of the linear telescopic rod serving as the traction portion 41 begins to extend, and the telescopic section of the linear telescopic rod moves downward with the filter section 23 in the vertical direction. Under the traction of the linear telescopic rod, the filter section 23 moves along the return section 272 on the guide groove 27 toward the material storage section 22, and the second slider 238 enters into the material storage section 22 through the return section 272. As the telescopic section of the linear telescopic rod continues to move downward with the filter section 23 in the vertical direction, the activated carbon 3 in the material storage section 22 passes through the gap between the adjacent connecting plates 233 on the side wall of the filter section 23 and the plurality of filter holes 236 on the first filter plate 231 into the filter section 23, completing the refilling of the activated carbon 3 material in the filter section 23. When the filter section 23 slides down inside the material storage section 22, the second slider 238 moves along the reset The groove 281 slides, and the second slider 238 rotates in the opposite direction with the first filter plate 231, so that the baffle plate 234 gradually approaches the gap between the adjacent connecting plates 233, and gradually closes the gap between the adjacent connecting plates 233. When the second slider 238 slides along the reset groove 281 and contacts the blocking plate 282, the blocking plate 282 deflects toward the direction of the guide groove 261, and the reset groove 281 is connected with the guide groove 261. As the filter segment 23 moves downward, the telescopic bar 293 is compressed. When the second filter plate 232 contacts the partition baffle 29, the electromagnetic block 221 is powered off and loses its magnetism. The second slider 238 brings the filter segment 23 and the partition baffle 29 back to the lowest end of the guide groove 261. At this time, the filter segment 23 is located inside the decolorization tank 1, and the replacement process of the activated carbon 3 inside the filter segment 23 is completed.

[0048] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A device for filtering variegated epoxy soybean oil, comprising a decolorizing tank (1), characterized in that: A vertical filter tube (2) is installed in the decolorizing tank (1), the filter tube (2) is filled with activated carbon (3), and a replacement mechanism (4) is installed on the filter tube (2), and the replacement mechanism (4) is used to replace the distribution of the activated carbon (3) in the filter tube (2); It also includes a conveying assembly (5) for conveying epoxidized soybean oil into the decolorizing tank (1); an oil outlet pipe (6) is installed on the side wall of the filter tube (2); one end of the oil outlet pipe (6) is connected to the filter tube (2), and the other end of the oil outlet pipe (6) passes through the decolorizing tank (1); The filter tube (2) is divided into a discharge section (21), a storage section (22) and a filter section (23) from top to bottom. The diameter of the storage section (22) is larger than that of the discharge section (21) and the filter section (23). The discharge section (21) is provided with an opening (24). The opening (24) is used to discharge the activated carbon (3) that has reached a saturated adsorption state from the filter tube (2) or to add unused activated carbon (3) material into the storage section (22). An oil outlet (25) is provided on the side wall of the filter tube (2), and the oil outlet pipe (6) is slidably connected to the filter tube (2). The oil outlet pipe (6) comprises a connecting sleeve (61) and a discharge pipe (62) which are connected to each other. The connecting sleeve (61) is sleeved on the outer wall of the filter tube (2), and a connecting port (64) is provided on the inner circumferential surface of the connecting sleeve (61). The connecting port (64) is in contact with the oil outlet (25) on the side wall of the filter tube (2), and a filter screen (63) is detachably installed at the connecting port (64) of the connecting sleeve (61); A guide plate (26) is installed inside the material storage section (22), a guide groove (261) is provided on the guide plate (26), the filter section (23) is slidably installed in the guide groove (261), the exchange mechanism (4) comprises a traction part (41), the traction part (41) is connected to the filter section (23), the traction part (41) tractions the filter section (23) to slide along the guide groove (261), and drives the filter section (23) to pass through the material storage section (22) and enter the material discharge section (21); The filter section (23) comprises a first filter plate (231) and a second filter plate (232) arranged in an upper and lower manner, a first slider (237) is installed on the side wall of the second filter plate (232), and a vertical fixed slide groove (239) is opened on the side wall of the material storage section (22), one end of the first slider (237) is inserted into the fixed slide groove (239), a plurality of connecting plates (233) are installed on the plate surface of the second filter plate (232) close to the first filter plate (231), the plurality of connecting plates (233) are arranged at intervals along the circumference of the second filter plate (232), and a shielding plate (234) is also arranged between adjacent connecting plates (233). A shielding plate (234) is fixedly mounted on a plate surface of the first filter plate (231) close to the second filter plate (232) along the circumference of the first filter plate (231); an annular groove (235) is provided on the plate surface of the first filter plate (231) close to the second filter plate (232); another section of the connecting plate (233) is inserted into the annular groove (235); a plurality of second sliding blocks (238) are fixedly mounted on the side wall of the first filter plate (231); the plurality of second sliding blocks (238) are arranged at intervals along the circumference of the first filter plate (231); and the plurality of second sliding blocks (238) correspond one-to-one to the guide grooves (261) on the plurality of guide plates (26).

2. The epoxidized soybean oil variegated filtering device according to claim 1, characterized in that: A plurality of filter holes (236) are provided on the plate surface of the first filter plate (231), and the apertures of the plurality of filter holes (236) gradually decrease from top to bottom, and the minimum diameter of the filter hole (236) is sufficient for the activated carbon (3) to pass through.

3. The epoxidized soybean oil variegated filtering device according to claim 2, characterized in that: A plurality of guide grooves (27) are provided on the side wall of the discharge section (21), each guide groove (27) comprises a deflection section (271) and a return section (272), the deflection section (271) is arranged obliquely, one end of the deflection section (271) is connected to the guide groove (261), and the other end of the deflection section (271) is connected to an end of the return section (272) away from the guide groove (261).

4. The epoxidized soybean oil variegated filtering device according to claim 3, characterized in that: The material storage section (22) is further provided with a reset inclined plate (28), and a reset groove (281) is provided on the reset inclined plate (28); one end of the reset groove (281) is connected to an end of the return section (272) close to the material storage section (22); the other end of the reset groove (281) is connected to an end of the guide groove (261) close to the filtering section (23); a blocking plate (282) is rotatably mounted at the connection between the reset groove (281) and the guide groove (261); the blocking plate (282) can only be deflected in the direction of the guide groove (261); the guide groove (261), the deflection section (271), the return section (272) and the reset groove (281) are connected end to end to form a quadrilateral structure.

5. A method for filtering variegated epoxy soybean oil, characterized in that: The epoxy soybean oil impurities are filtered by the epoxy soybean oil impurities filtering device according to any one of claims 1 to 4. When filtering the epoxy soybean oil impurities, the method comprises the following steps: S1: filling the activated carbon (3) material into the storage section (22) and the filtering section (23) through the opening (24) on the side wall of the discharge section (21); S2: filtering the epoxy soybean oil through the filtering section (23) to remove the impurities in the epoxy soybean oil; S3: taking out and collecting the activated carbon (3) that has reached a saturated adsorption state inside the filtration section (23); S4: Refilling the activated carbon (3) inside the filtration section (23).

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