Rotary oleic acid filtering purification and impurity automatic removal device

Abstract

The invention relates to the field of oleic acid purification equipment, in particular to a rotary oleic acid filtering purification and automatic impurity removal device which comprises a tank body and a filter screen cylinder rotationally mounted in the tank body, and further comprises two filter cavities which are arranged in the filter screen cylinder and are distributed up and down, and impurity removal openings which are in one-to-one correspondence with the filtering cavities and communicate with the tops of the filtering cavities, an impurity removal mechanism and a switching mechanism are formed in the outer ring wall of the filtering net cylinder. Through mutual cooperation of the filter screen cylinder, the impurity removal mechanism, the switching mechanism and the driving motor II, the upper and lower filter cavities alternately perform rotary filtration and impurity removal cleaning, so that the influence of excessive impurities in the filter screen cylinder on the filtering effect of oleic acid is avoided, and meanwhile, the oleic acid can be continuously filtered and purified; and impurity removal can be performed without pausing, so that the oleic acid filtering efficiency can be improved.

Description

Technical Field

[0001] The invention relates to the technical field of oleic acid purification equipment, in particular to a rotary oleic acid filtering, purification and impurity automatic removal device. Background Art

[0002] Oleic acid is a monounsaturated omega-9 fatty acid found in plants and animals. Its chemical formula is C₁₈H₃₄O₂. Stearic acid is produced by hydrogenation of oleic acid. The double-bonded trans isomer of oleic acid is elaidic acid. In animal fats, oleic acid accounts for approximately 40%-50% of the fatty acids. This varies significantly in vegetable oils, reaching as high as 83% in tea oil, 54% in peanut oil, and 55%-83% in olive oil.

[0003] During the production and processing of oleic acid, filtration and purification are required to reduce impurities in the oleic acid. Generally, the oleic acid is filtered through a rotating filter cylinder, and centrifugal force is used to make the oleic acid pass through the filter better. However, the above filtration method still has the following shortcomings: during the rotary filtration process, due to the influence of gravity, oleic acid will accumulate at the bottom of the filter, resulting in the bottom filter filtering more oleic acid, while the top filter filtering less oleic acid, causing the bottom filter to be more easily clogged, affecting the filtration efficiency; 2. As the amount of oleic acid filtered increases, the impurities in the filter cylinder also increase. Excessive impurities will clog the filter and affect the filtration of oleic acid. Therefore, the filter cylinder needs to be disassembled and cleaned regularly. During the cleaning process, the filtration of oleic acid needs to be suspended, affecting the entire oleic acid processing efficiency. Summary of the Invention

[0004] In order to solve the above problems, the present invention provides a rotary oleic acid filtration, purification and impurity automatic removal device, which includes a tank body and a filter mesh cylinder rotatably installed inside the tank body, and also includes two filter cavities arranged inside the filter mesh cylinder and distributed up and down. The outer ring wall of the filter mesh cylinder is provided with an impurity removal port that corresponds one-to-one to the filter cavity and is connected to the top of the filter cavity.

[0005] The impurity removal mechanism includes a bidirectional threaded tube rotatably mounted at the center of the tank body with upper and lower threads in opposite directions. The bidirectional threaded tube is provided with feed ports corresponding one to one with the filter cavities. A connecting port located between the upper and lower feed ports is provided inside the bidirectional threaded tube. Scraping plates and cleaning components for cleaning impurities are installed on the upper and lower threaded sections of the bidirectional threaded tube.

[0006] The switching mechanism comprises a feed blocking ring slidingly installed inside the bidirectional threaded pipe for controlling the upper feed port and the communication port to be alternately opened and closed, and a ring-shaped blocking piece slidingly installed on the filter screen cylinder for controlling the upper and lower two impurity removal ports to be alternately opened and closed.

[0007] When the bidirectional threaded pipe is rotated clockwise, the feed blocking ring and the ring-shaped blocking piece are switched upward, the communication port is controlled to be opened, the upper impurity removal port is controlled to be closed, the filtering is implemented in the lower filter cavity, and the impurity removal is implemented in the upper filter cavity.

[0008] In a possible implementation, a plurality of material guiding plates are fixedly sleeved on the outer ring wall of the filter screen cylinder and are distributed upward and downward, the material guiding plates are respectively located at the bottom of the upper impurity removal port and the upper and lower sides of the lower impurity removal port, the material guiding plates are rotationally connected with the inner wall of the tank body, and a plurality of circumferentially uniformly distributed protruding ribs are integrally formed on the top of the material guiding plates.

[0009] In a possible implementation, the scraping plate is threadedly connected with the corresponding threaded segment of the bidirectional threaded pipe, a plurality of guide blocks are circumferentially and uniformly installed on the outer ring wall of the scraping plate, a plurality of guide grooves corresponding to the guide blocks are formed in the inner ring wall of the filter screen cylinder, and the guide blocks are slidingly installed in the corresponding guide grooves.

[0010] In a possible implementation, the cleaning assembly comprises a movable ring rotationally installed on the top of the scraping plate, the movable ring is slidingly sleeved on the bidirectional threaded pipe upward and downward, a plurality of arc-shaped scraping strips are circumferentially and uniformly installed on the movable ring, and the arc-shaped scraping strips are slidingly attached to the top of the corresponding scraping plate.

[0011] In a possible implementation, the inside of the bidirectional threaded pipe is further provided with a flow slowing assembly located between the communication port and the lower feed port, the flow slowing assembly comprises a plurality of flow slowing bowls and flow slowing umbrellas alternately distributed upward and downward, the flow slowing bowl is a bottomless bowl structure, the flow slowing umbrella is a circular umbrella surface structure, the flow slowing bowl is coaxial with the flow slowing umbrella, and the projection area of the flow slowing umbrella is greater than the projection area of the opening at the bottom of the flow slowing bowl.

[0012] In a possible implementation, the feed blocking ring is located above the communication port, the height of the feed blocking ring is greater than the height of the upper feed port, the wall thickness of the feed blocking ring is equal to the width of the communication port, the top of the feed blocking ring is fixedly connected with the center of the bottom of the connecting frame, the center of the connecting frame is a hollow structure and is provided with feed nozzles symmetrically distributed left and right, and the feed nozzles are located above the feed blocking ring.

[0013] In a possible implementation mode, the annular baffle is connected by connecting rods from two impurity removal baffle rings distributed above and below, the spacing between the two impurity removal baffle rings is greater than the spacing between the two impurity removal openings, the impurity removal baffle rings are slidingly installed on the filter screen cylinder and matched with the corresponding impurity removal openings, the height of the impurity removal baffle ring is greater than the height of the impurity removal opening, the upper impurity removal baffle ring is located above the uppermost material guide plate, the lower impurity removal baffle ring is located between the lower two material guide plates, and the top of the upper impurity removal baffle ring is fixedly connected with the edge of the bottom of the connecting frame.

[0014] In a possible implementation mode, the top of the filter screen cylinder is further provided with a driving motor two for driving the rotation of the bidirectional threaded pipe, a driving gear is fixedly installed on the output shaft of the driving motor two, and a driven gear ring is fixedly installed on the top end of the bidirectional threaded pipe after penetrating through the upper part of the filter screen cylinder.

[0015] In a possible implementation mode, the up-down switching assembly includes a rotating column fixedly installed on the top of the output shaft of the driving motor two, an upper ring groove and a lower ring groove are formed in the outer ring wall of the rotating column in up-down distribution, and an inclined through groove for connecting the upper ring groove and the lower ring groove is formed in the outer ring wall of the rotating column, the lower ring groove is a spiral groove with gradually increasing depth in the clockwise direction, the bottom end of the inclined through groove is connected with the end of the lower ring groove, the top end of the inclined through groove is inclined to the clockwise rotation direction of the rotating column, and the connecting frame is fixedly connected with an elastic telescopic rod in sliding fit with the lower ring groove, the upper ring groove and the upper ring groove.

[0016] In a possible implementation mode, the left and right sides of the tank body are respectively provided with impurity removal openings and discharge openings corresponding to the filter cavities, the bottom of the upper impurity removal opening is flush with the top of the uppermost material guide plate, the bottom of the lower impurity removal opening is flush with the top of the lowermost material guide plate, the left sides of the upper and lower impurity removal openings are fixedly connected with an impurity removal pipe, the bottom of the upper discharge opening is flush with the top of the middle material guide plate, the bottom of the lower discharge opening is flush with the inner wall of the bottom of the tank body, the right sides of the upper and lower discharge openings are fixedly connected with a discharge pipe, the top of the tank body is fixedly connected with a feeding pipe, a bellows is rotationally connected between the bottom of the feeding pipe and the top of the center of the connecting frame, and the top of the bellows is connected with the feeding pipe and the bottom of the bellows is connected with the feeding nozzle.

[0017] The present application has the following advantages: 1. The up-down two filter cavities are alternately rotated and filtered and cleaned by the cooperation of the filter screen cylinder, the impurity removal mechanism, the switching mechanism and the driving motor two, so that the excessive impurities in the filter screen cylinder do not affect the filtering effect of oleic acid, and the continuous filtering and purification of oleic acid can be realized without stopping to remove impurities, thereby improving the filtering efficiency of oleic acid.

[0018] 2、The rotating bidirectional screw pipe drives the corresponding scraping plate to move upwards to scrape off the impurities on the inner wall of the filter cavity in the process of impurity removal of the filter cavity, meanwhile, the bidirectional screw pipe drives the movable ring to rotate, the arc-shaped scraping strip scrapes off the impurities on the surface of the scraping plate, and under the action of centrifugal force, the impurities gather to the edge of the scraping plate, and finally are pushed to the corresponding impurity removal opening to be discharged, the impurities can be automatically cleaned, the impurity cleaning effect is improved, disassembly and cleaning are not needed, and the cleaning efficiency of the impurities in the filter cavity is improved.

[0019] 3、The rotating bidirectional screw pipe drives the corresponding scraping plate to move downwards in the process of filtering of the filter cavity, so that the oleic acid gradually contacts the surface of the filter screen cylinder from top to bottom, the filter screen at different positions of the filter screen cylinder can effectively filter the oleic acid, the problem that the top filter screen cannot effectively filter and the bottom filter screen is easily blocked is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is a perspective structural schematic view of the present application.

[0021] Figure 2 is a half sectional view of the front of the present application.

[0022] Figure 3 is a perspective structural schematic view of the filter screen cylinder of the present application.

[0023] Figure 4 is a half sectional view of the front of the filter screen cylinder of the present application.

[0024] Figure 5 is a perspective structural schematic view of the impurity removal mechanism of the present application.

[0025] Figure 6 is a partial sectional view of the bidirectional screw pipe of the present application.

[0026] Figure 7 is an enlarged view of A in the present application. Figure 2

[0027] Figure 8 is a perspective structural schematic view of the switching mechanism of the present application.

[0028] Figure 9 is a perspective structural schematic view of the up-down switching assembly of the present application.

[0029] Figure 10 is a top sectional view of the lower ring groove of the present application.

[0030] ​In the figure: 1. Tank body; 11. Impurity discharge port; 12. Impurity discharge pipe; 13. Discharge port; 14. Discharge pipe; 15. Feed pipe; 16. Bellows; 2. Filter screen; 21. Filter chamber; 22. Impurity removal port; 23. Guide plate; 3. Drive motor 1; 4. Impurity removal mechanism; 41. Bidirectional threaded pipe; 411. Feed port; 412. Connecting port; 42. Scraper plate; 421. Guide block; 422. Guide groove; 43. Cleaning assembly; 431 , movable ring; 432, arc-shaped scraper; 44, slow-flow component; 441, slow-flow bowl; 442, slow-flow umbrella; 5, switching mechanism; 51, feed baffle ring; 52, annular baffle; 53, connecting frame; 531, feed nozzle; 54, upper and lower switching component; 541, rotating column; 542, lower ring groove; 543, upper ring groove; 544, oblique through groove; 545, elastic telescopic rod; 6, driving motor 2; 61, driving gear; 62, driven gear ring. DETAILED DESCRIPTION

[0031] To make the above-mentioned objects, features, and advantages of the present invention more readily apparent, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings. The following description sets forth numerous specific details to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways than those described below, and those skilled in the art may make similar modifications without departing from the scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0032] See also Figures 1-4 A rotary oleic acid filtering, purification and impurity automatic removal device includes a tank body 1 and a filter screen cartridge 2 rotatably installed inside the tank body 1, and also includes two filter cavities 21 arranged inside the filter screen cartridge 2 and distributed up and down. An impurity removal port 22 corresponding to the filter cavity 21 and connected to the top of the filter cavity 21 is opened on the outer ring wall of the filter screen cartridge 2. A driving motor 3 for driving the filter screen cartridge 2 is fixedly installed at the bottom of the tank body 1. The output shaft of the driving motor 3 rotates through the interior of the tank body 1 and is coaxially fixedly connected to the bottom of the filter screen cartridge 2.

[0033] See also Figures 2-7 The impurity removal mechanism 4 includes a bidirectional threaded tube 41 rotatably mounted at the center of the tank body 1 and with upper and lower threads in opposite directions. The bidirectional threaded tube 41 is provided with a feed port 411 corresponding one to one with the filter cavity 21. The interior of the bidirectional threaded tube 41 is provided with a communication port 412 located between the upper and lower feed ports 411. A scraper plate 42 and a cleaning assembly 43 for cleaning impurities are installed on the upper and lower thread sections of the bidirectional threaded tube 41.

[0034] See also Figure 2 、 Figure 3 、 Figure 7 、 Figure 8and Figure 9 The switching mechanism 5 comprises a feed baffle ring 51 slidably installed inside the bidirectional screw pipe 41 to control the upper feed port 411 and the communication port 412 to open and close alternately, and a ring-shaped baffle 52 slidably installed on the filter screen cylinder 2 to control the upper and lower two impurity removal ports 22 to open and close alternately, and a connecting frame 53 and an up-down switching assembly 54 are installed on the top of the filter screen cylinder 2 to control the up-down switching of the feed baffle ring 51 and the ring-shaped baffle 52.

[0035] Please refer to Figure 2 , Figure 3 , Figure 6 and Figure 9 The top of the filter screen cylinder 2 is also provided with a driving motor two 6 for driving the bidirectional screw pipe 41 to rotate, a driving gear 61 is coaxially and fixedly installed on the output shaft of the driving motor two 6, and a driven gear ring 62 is coaxially and fixedly installed on the top end of the bidirectional screw pipe 41 which penetrates through the upper part of the filter screen cylinder 2, and the driving gear 61 is engaged with the driven gear ring 62.

[0036] Please refer to Figures 1-10 The filter screen cylinder 2 is driven to rotate by the driving motor one 3, so that the filter screen cylinder 2 performs rotary filtration on oleic acid. When the filter screen cylinder 2 rotates, the impurity removal mechanism 4, the switching mechanism 5 and the driving motor two 6 rotate together. At the same time, the driving motor two 6 drives the connecting frame 53, the feed baffle ring 51 and the ring-shaped baffle 52 to move up and down periodically to switch positions. When the feed baffle ring 51, the ring-shaped baffle 52 and the connecting frame 53 switch upwards, the feed baffle ring 51 is level with the upper feed port 411. At this time, the feed baffle ring 51 blocks the upper feed port 411, the communication port 412 is opened, and the oleic acid flows into the lower filter cavity 21 through the communication port 412 and the lower feed port 411 for filtration. At the same time, the ring-shaped baffle 52 blocks the lower impurity removal port 22 and opens the upper impurity removal port 22, so that the upper filter cavity 21 is switched to the impurity removal state.

[0037] Conversely, when the feed baffle ring 51, the ring-shaped baffle 52 and the connecting frame 53 switch downwards, the top of the feed baffle ring 51 is lower than the upper feed port 411, so that the upper feed port 411 is opened. At this time, the feed baffle ring 51 blocks the communication port 412, so that the oleic acid flows into the upper filter cavity 21 through the upper feed port 411 for filtration. At the same time, the ring-shaped baffle 52 blocks the upper impurity removal port 22 and opens the lower impurity removal port 22, so that the lower filter cavity 21 is switched to the impurity removal state.

[0038] The driving motor 6 drives the bidirectional screw pipe 41 to rotate periodically in forward and reverse directions through the driving of the driving gear 61 and the driven gear ring 62. When the upper filtering cavity 21 is in the impurity removing state, the bidirectional screw pipe 41 rotates counterclockwise, at this time, the bidirectional screw pipe 41 drives the upper scraping plate 42 to move upwards and scrape the impurities on the inner wall of the upper filtering cavity 21, at the same time, the lower scraping plate 42 moves downwards, so that the oleic acid contacts the filtering screen at different positions from top to bottom, avoiding the oleic acid from gathering at the bottom of the filtering screen for filtering all the time, reducing the possibility of the filtering screen being blocked and improving the filtering effect.

[0039] Please refer to Figures 2-4 , a plurality of material guiding plates 23 are fixedly sleeved on the outer ring wall of the filtering screen cylinder 2 and are distributed upwards and downwards, the material guiding plates 23 are respectively located at the bottom of the upper impurity removing port 22 and the upper and lower sides of the lower impurity removing port 22, the material guiding plates 23 are rotationally connected with the inner wall of the tank body 1, and the top of each material guiding plate 23 is integrally formed with a plurality of convex ribs which are uniformly distributed in the circumferential direction.

[0040] The filtering screen cylinder 2 rotates in the process of rotation, the material guiding plates 23 can rotate together with the filtering screen cylinder 2, the material guiding plates 23 can play a role in rotationally supporting the filtering screen cylinder 2 and improving the stability of the filtering screen cylinder 2 in rotation, at the same time, the material guiding plates 23 can isolate the discharged impurities from the filtered oleic acid, so that the impurities and the oleic acid are discharged respectively, and in the process of rotation of the material guiding plates 23, the convex ribs can accelerate the flow of the impurities or the oleic acid to the edge of the material guiding plates 23 and then discharge, thereby improving the discharge efficiency of the impurities and the oleic acid.

[0041] Please refer to Figure 2 , Figure 4 and Figure 5 , the scraping plate 42 is threadedly connected with the corresponding threaded segment of the bidirectional screw pipe 41, the outer ring wall of the scraping plate 42 is peripherally and uniformly provided with a plurality of guide blocks 421, the inner ring wall of the filtering screen cylinder 2 is provided with a plurality of guide grooves 422 corresponding to the guide blocks 421 one by one, and the guide blocks 421 are slidably installed in the corresponding guide grooves 422.

[0042] The guide blocks 421 and the guide grooves 422 cooperatively guide and limit the scraping plate 42, so that the scraping plate 42 can only move upwards and downwards in the filtering screen cylinder 2, when the bidirectional screw pipe 41 rotates, the scraping plate 42 is driven to move upwards or downwards by the threads on the surface of the bidirectional screw pipe 41, so that the scraping plate 42 can scrape the impurities on the inner wall of the filtering screen cylinder 2 or drive the oleic acid to contact the filtering screen at different positions from top to bottom.

[0043] Please refer to Figure 2 and Figure 5The cleaning assembly 43 comprises a movable ring 431 rotatably installed on the top of the scraping plate 42, the movable ring 431 is slidably sleeved on the bidirectional screw pipe 41, a plurality of arc-shaped scraping strips 432 are uniformly installed on the movable ring 431 in the circumferential direction, and the arc-shaped scraping strips 432 are slidably attached to the top of the corresponding scraping plate 42.

[0044] During rotation of the bidirectional screw pipe 41, the movable ring 431 rotates together, the movable ring 431 drives the arc-shaped scraping strips 432 to rotate on the surface of the scraping plate 42, so that the arc-shaped scraping strips 432 scrape off the impurities on the surface of the scraping plate 42, the scraped-off impurities move to the edge of the scraping plate 42 under the action of centrifugal force, and the impurities are conveniently discharged from the impurity removal opening 22, and meanwhile, the scraping plate 42 drives the movable ring 431 to move up and down together during up-and-down movement of the scraping plate 42, so that the arc-shaped scraping strips 432 can always be attached to the upper surface of the scraping plate 42.

[0045] Please refer to Figure 2 and Figure 6 , the inside of the bidirectional screw pipe 41 is further provided with a flow slowing assembly 44 located between the communication opening 412 and the lower feeding opening 411, the flow slowing assembly 44 comprises a plurality of flow slowing bowls 441 and flow slowing umbrellas 442 alternately arranged in the up-and-down direction, the flow slowing bowl 441 has a bottomless bowl structure, the flow slowing umbrella 442 has a circular umbrella surface structure, the flow slowing bowl 441 is coaxial with the flow slowing umbrella 442, and the projection area of the flow slowing umbrella 442 is greater than the projection area of the bottom opening of the flow slowing bowl 441.

[0046] When the communication opening 412 is opened, the oleic acid flows downward through the communication opening 412, then passes through the alternately arranged flow slowing bowls 441 and flow slowing umbrellas 442, and finally flows into the lower filtering cavity 21 from the lower feeding opening 411, the tortuous channel formed between the flow slowing bowl 441 and the flow slowing umbrella 442 is used to slow down the falling time of the oleic acid, so that when the oleic acid enters the lower filtering cavity 21, the annular blocking piece 52 can completely block the lower impurity removal opening 22, thereby avoiding the oleic acid from flowing out of the lower impurity removal opening 22 and avoiding waste of the oleic acid.

[0047] Please refer to Figure 2 , Figure 7 and Figure 8 , the feeding blocking ring 51 is located above the communication opening 412, the height of the feeding blocking ring 51 is greater than the height of the upper feeding opening 411, the wall thickness of the feeding blocking ring 51 is equal to the width of the communication opening 412, the top of the feeding blocking ring 51 is fixedly connected to the center of the bottom of the connecting frame 53, the center of the connecting frame 53 is a hollow structure and is provided with feeding nozzles 531 symmetrically arranged on the left and right sides, and the feeding nozzles 531 are located above the feeding blocking ring 51.

[0048] The connection frame 53 moves up and down to drive the feed blocking ring 51 to move up and down to switch positions. When the feed blocking ring 51 switches to the same height as the upper feed port 411 upwardly, the feed blocking ring 51 can completely close the upper feed port 411, so that the oleic acid cannot enter the upper filter cavity 21 through the upper feed port 411. At this time, the oleic acid flows downward through the communication port 412 into the lower filter cavity 21 for filtering. When the feed blocking ring 51 switches downwardly, the bottom of the feed blocking ring 51 just blocks the communication port 412, and at the same time, the upper feed port 411 is opened, so that the oleic acid cannot enter the lower filter cavity 21 through the communication port 412. At this time, the oleic acid enters the upper filter cavity 21 through the upper feed port 411 for filtering. The position of the feed blocking ring 51 is switched up and down to realize the alternating switching between the two filter cavities 21 in the state of removing impurities and the state of filtering.

[0049] Please refer to Figure 2 , Figure 3 and Figure 8 , the annular blocking piece 52 is connected by connecting rods from the two impurity removal blocking rings distributed upwardly and downwardly. The spacing between the two impurity removal blocking rings is greater than the spacing between the two impurity removal ports 22. The impurity removal blocking rings are slidingly installed on the filter screen cylinder 2 and matched with the corresponding impurity removal ports 22. The height of the impurity removal blocking ring is greater than the height of the impurity removal port 22. The upper impurity removal blocking ring is located above the uppermost guide plate 23, and the lower impurity removal blocking ring is located between the lower two guide plates 23. The top of the upper impurity removal blocking ring is fixedly connected with the edge of the bottom of the connection frame 53.

[0050] The annular blocking piece 52 is driven by the connection frame 53 to move up and down to switch positions, so that the annular blocking piece 52 controls the alternating opening and closing of the two impurity removal ports 22. When the annular blocking piece 52 switches upwardly, the two impurity removal blocking rings move upwardly together. At this time, the upper impurity removal blocking ring moves to the top of the upper impurity removal port 22, and the lower impurity removal blocking ring moves to the same height as the lower impurity removal port 22. At this time, the upper impurity removal port 22 is opened, and the lower impurity removal port 22 is closed, so that the impurities in the upper filter cavity 21 can be discharged outwardly, while preventing the oleic acid in the lower filter cavity 21 from being discharged from the lower impurity removal port 22. Conversely, when the annular blocking piece 52 switches downwardly, the two impurity removal blocking rings move downwardly together. At this time, the upper impurity removal blocking ring moves to the same height as the upper impurity removal port 22, and the lower impurity removal blocking ring moves to the bottom of the lower impurity removal port 22. At this time, the upper impurity removal port 22 is closed, and the lower impurity removal port 22 is opened, so that the impurities in the lower filter cavity 21 can be discharged outwardly, while preventing the oleic acid in the upper filter cavity 21 from being discharged from the upper impurity removal port 22.

[0051] Please refer to Figure 2 , Figure 3 , Figure 7 , Figure 8 ,Figure 9 and Figure 10 The up-down switching assembly 54 includes a rotating column 541 coaxially fixedly installed on the top of the output shaft of the second driving motor 6, an upper ring groove 543 and a lower ring groove 542 are formed on the outer ring wall of the rotating column 541 in up-down distribution, and a slanting through groove 544 for connecting the upper ring groove 543 and the lower ring groove 542 is formed on the outer ring wall of the rotating column 541, the lower ring groove 542 is a spiral groove with gradually increasing depth in the clockwise direction, the bottom end of the slanting through groove 544 is communicated with the terminal end of the lower ring groove 542, the top end of the slanting through groove 544 is inclined to the clockwise rotation direction of the rotating column 541, and the connecting frame 53 is fixedly connected with an elastic telescopic rod 545 which is in sliding fit with the lower ring groove 542, the upper ring groove 543 and the upper ring groove 543.

[0052] In the initial state, the end of the elastic telescopic rod 545 is located in the lower ring groove 542, when the second driving motor 6 drives the bidirectional threaded pipe 41 to rotate clockwise through the transmission of the driving gear 61 and the driven gear ring 62, the second driving motor 6 drives the rotating column 541 to rotate counterclockwise, when the end of the elastic telescopic rod 545 moves to the terminal end of the lower ring groove 542, the elastic telescopic rod 545 cannot continue to rotate along the lower ring groove 542 due to the depth difference between the starting end and the terminal end of the lower ring groove 542, at this time, the elastic telescopic rod 545 moves upward along the slanting through groove 544 and enters the upper ring groove 543, then the elastic telescopic rod 545 slides in the upper ring groove 543, the upward movement of the elastic telescopic rod 545 drives the connecting frame 53 to move upward to switch the position, in the process of counterclockwise rotation of the rotating column 541, when the elastic telescopic rod 545 moves to the top of the slanting through groove 544, the elastic telescopic rod 545 does not move downward along the slanting through groove 544, so that the connecting frame 53 remains in the upward switching position.

[0053] When the second driving motor 6 drives the bidirectional threaded pipe 41 to rotate counterclockwise through the transmission of the driving gear 61 and the driven gear ring 62, the second driving motor 6 drives the rotating column 541 to rotate clockwise, at this time, when the elastic telescopic rod 545 moves to the top of the slanting through groove 544, the elastic telescopic rod 545 enters the slanting through groove 544 through the opening at the top of the slanting through groove 544, then enters the lower ring groove 542 along the slanting through groove 544, and then slides in the lower ring groove 542, in the process of downward movement of the elastic telescopic rod 545, the connecting frame 53 is driven to move downward to switch the position, in the process of clockwise rotation of the rotating column 541, the elastic telescopic rod 545 moves against the direction of the depth change of the lower ring groove 542, in the process of movement, the elastic telescopic rod 545 gradually shortens, then falls from the starting end to the terminal end of the lower ring groove 542 and continues to rotate circularly, so that the connecting frame 53 remains in the downward switching position.

[0054] Please refer to Figure 1 , Figure 2 ,Figure 3 And Figure 7 The left and right sides of the tank body 1 are respectively provided with a corresponding impurity discharge port 11 and a discharge port 13 corresponding to the filter cavity 21. The bottom of the upper impurity discharge port 11 is flush with the top of the uppermost guide plate 23, and the bottom of the lower impurity discharge port 11 is flush with the top of the lowermost guide plate 23. The left sides of the upper and lower impurity discharge ports 11 are fixedly connected together. The bottom of the upper discharge port 13 is flush with the top of the middle guide plate 23, and the bottom of the lower discharge port 12 is flush with the inner wall of the bottom of the tank body 1. The right sides of the upper and lower discharge ports 13 are fixedly connected together. The top of the tank body 1 is fixedly connected with a feeding pipe 15. The bottom of the feeding pipe 15 is rotatably connected with the corrugated pipe 16 at the top of the center of the connecting frame 53. The top of the corrugated pipe 16 is in communication with the feeding pipe 15, and the bottom is in communication with the feeding nozzle 531.

[0055] The oleic acid to be filtered is transported from the feeding pipe 15 into the corrugated pipe 16, and then transported by the corrugated pipe 16 to the center of the connecting frame 53 and discharged into the two-way threaded pipe 41 through the feeding nozzle 531, and then flows into the corresponding filter cavity 21 through the corresponding feeding port 411 for filtering. During the up-down movement of the connecting frame 53, the corrugated pipe 16 can be deformed in extension and contraction, so as not to affect the feeding of the oleic acid. The impurities discharged through the impurity discharge port 22 will fall on the corresponding guide plate 23, and then be transported to the corresponding impurity discharge port 11 by the rotation of the guide plate 23, and finally be discharged outwardly through the impurity discharge pipe 12. The oleic acid filtered through the filter screen cylinder 2 will fall on the corresponding guide plate 23 or the bottom of the tank body 1, and then flow into the discharge pipe 14 through the corresponding discharge port 13 for centralized discharge.

[0056] In the description of the present application, it should be noted that, unless otherwise explicitly specified and limited, the terms "provided", "connected", "mounted", and "connected" should be understood broadly, for example, they can be fixedly connected, or detachably connected, or integrally connected, or slidingly connected; they can be mechanically connected, or electrically connected; they can be directly connected, or indirectly connected through an intermediate medium, or connected inside two elements. For those skilled in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0057] The embodiments of the specific implementation are the preferred embodiments of the present application, and do not limit the protection scope of the present application, so that: any equivalent changes made according to the structure, shape, principle of the present application should be covered within the protection scope of the present application.

Claims

1. A rotary oleic acid filtration, purification and impurity automatic removal device, comprising a tank body (1) and a filter screen cylinder (2) rotatably mounted inside the tank body (1), characterized in that: It also includes two filter cavities (21) arranged inside the filter screen cylinder (2) and distributed vertically. An impurity removal port (22) corresponding one-to-one to the filter cavities (21) and communicating with the top of the filter cavities (21) is provided on the outer ring wall of the filter screen cylinder (2). An impurity removal mechanism (4), the impurity removal mechanism (4) comprising a bidirectional threaded tube (41) rotatably mounted at the center of the tank body (1) and having upper and lower threads in opposite directions, the bidirectional threaded tube (41) being provided with feed ports (411) corresponding one to one with the filter chamber (21), the interior of the bidirectional threaded tube (41) being provided with a communication port (412) located between the upper and lower feed ports (411), and scraping plates (42) and cleaning components (43) for cleaning impurities being mounted on the upper and lower threaded sections of the bidirectional threaded tube (41); A switching mechanism (5), the switching mechanism (5) comprising a feed baffle ring (51) mounted in a vertically slidable manner inside a bidirectional threaded tube (41) for controlling the alternating opening and closing of an upper feed port (411) and a communication port (412), and an annular baffle (52) mounted in a vertically slidable manner on a filter screen cylinder (2) for controlling the alternating opening and closing of upper and lower impurity removal ports (22), wherein a connecting frame (53) and an upper and lower switching assembly (54) are mounted on the top of the filter screen cylinder (2); When the bidirectional threaded tube (41) rotates clockwise, the feed baffle ring (51) and the annular baffle (52) switch upward, control the communication port (412) to open, the upper impurity removal port (22) to close, the lower filter chamber (21) performs filtering, and the upper filter chamber (21) performs impurity removal. When the bidirectional threaded tube (41) rotates counterclockwise, the feed baffle ring (51) and the annular baffle (52) switch downward, control the upper feed port (411) to open, the upper impurity removal port (22) to close, the upper filter chamber (21) performs filtering, and the lower filter chamber (21) performs impurity removal.

2. The rotary oleic acid filtration, purification and impurity automatic removal device according to claim 1, characterized in that: A plurality of guide plates (23) distributed up and down are fixedly mounted on the outer ring wall of the filter screen cylinder (2). The guide plates (23) are respectively located at the bottom of the upper impurity removal opening (22) and at the upper and lower sides of the lower impurity removal opening (22). The guide plates (23) are rotatably connected to the inner wall of the tank body (1). The top of the guide plates (23) is integrally formed with a plurality of convex ribs evenly distributed in the circumferential direction.

3. The rotary oleic acid filtration, purification and impurity automatic removal device according to claim 1, characterized in that: The scraper plate (42) is threadedly connected to the corresponding threaded section of the bidirectional threaded pipe (41); guide blocks (421) are evenly installed circumferentially on the outer ring wall of the scraper plate (42); guide grooves (422) corresponding to the guide blocks (421) are opened on the inner ring wall of the filter screen cylinder (2); the guide blocks (421) are slidably installed in the corresponding guide grooves (422) up and down.

4. The rotary oleic acid filtration, purification and impurity automatic removal device according to claim 3, characterized in that: The cleaning assembly (43) includes a movable ring (431) rotatably mounted on the top of the scraping plate (42), the movable ring (431) slidingly sleeved on the bidirectional threaded tube (41) up and down, and a plurality of arc-shaped scraping strips (432) uniformly mounted circumferentially on the movable ring (431), the arc-shaped scraping strips (432) slidingly fitted on the top of the corresponding scraping plate (42).

5. The rotary oleic acid filtration, purification and impurity automatic removal device according to claim 1, characterized in that: The bidirectional threaded tube (41) is further provided with a slow flow assembly (44) located between the communication port (412) and the lower feed port (411). The slow flow assembly (44) includes a plurality of slow flow bowls (441) and slow flow umbrellas (442) alternately distributed up and down. The slow flow bowl (441) is a bottomless bowl-shaped structure, and the slow flow umbrella (442) is a circular umbrella-shaped structure. The slow flow bowl (441) and the slow flow umbrella (442) are coaxial, and the projection area of ​​the slow flow umbrella (442) is larger than the projection area of ​​the bottom opening of the slow flow bowl (441).

6. The rotary oleic acid filtration, purification and impurity automatic removal device according to claim 1, characterized in that: The feed retaining ring (51) is located above the communication port (412), the height of the feed retaining ring (51) is greater than the height of the upper feed port (411), the wall thickness of the feed retaining ring (51) is equal to the width of the communication port (412), the top of the feed retaining ring (51) is fixedly connected to the center of the bottom of the connecting frame (53), the center of the connecting frame (53) is a hollow structure and is provided with feed nozzles (531) symmetrically distributed on the left and right, and the feed nozzles (531) are located above the feed retaining ring (51).

7. The rotary oleic acid filtration, purification and impurity automatic removal device according to claim 6, characterized in that: The annular baffle (52) is formed by two upper and lower debris removal baffle rings connected by a connecting rod. The distance between the upper and lower debris removal baffle rings is greater than the distance between the upper and lower debris removal ports (22). The debris removal baffle rings are slidably mounted on the filter screen cylinder (2) and matched with the corresponding debris removal ports (22). The height of the debris removal baffle rings is greater than the height of the debris removal ports (22). The upper debris removal baffle ring is located above the uppermost material guide plate (23), and the lower debris removal baffle ring is located between the two lower material guide plates (23). The top of the upper debris removal baffle ring is fixedly connected to the edge of the bottom of the connecting frame (53).

8. The rotary oleic acid filtration, purification and impurity automatic removal device according to claim 1, characterized in that: A second drive motor (6) for driving the bidirectional threaded tube (41) to rotate is also installed on the top of the filter screen cylinder (2). A driving gear (61) is coaxially fixedly installed on the output shaft of the second drive motor (6). After the top end of the bidirectional threaded tube (41) rotates and passes through the top of the filter screen cylinder (2), a driven gear ring (62) is coaxially fixedly installed thereon. The driving gear (61) is meshed with the driven gear ring (62).

9. The rotary oleic acid filtration, purification and impurity automatic removal device according to claim 8, characterized in that: The up-down switching assembly (54) comprises a rotating column (541) coaxially fixedly mounted on the top of the output shaft of the second driving motor (6); an upper ring groove (543) and a lower ring groove (542) are provided on the outer ring wall of the rotating column (541) and are arranged in an upper and lower manner; an oblique groove (544) for connecting the upper ring groove (543) and the lower ring groove (542); the lower ring groove (542) is a spiral groove whose depth gradually increases in a clockwise direction; the bottom end of the oblique groove (544) is connected to the terminal end of the lower ring groove (542); the top end of the oblique groove (544) is inclined in the direction of clockwise rotation of the rotating column (541); and an elastic telescopic rod (545) is fixedly connected to the connecting frame (53) and is slidably matched with the lower ring groove (542), the upper ring groove (543) and the upper ring groove (543).

10. The rotary oleic acid filtration, purification and impurity automatic removal device according to claim 6, characterized in that: The left and right sides of the tank body (1) are respectively provided with a discharge port (11) and a discharge port (13) corresponding to the filter cavity (21). The bottom of the upper discharge port (11) is flush with the top of the uppermost guide plate (23), and the bottom of the lower discharge port (11) is flush with the top of the lowermost guide plate (23). The left sides of the upper and lower discharge ports (11) are fixedly connected to a discharge pipe (12). The bottom of the upper discharge port (13) is flush with the top of the middle guide plate (23). The top is flush, the bottom of the impurity discharge pipe (12) below is flush with the inner wall of the bottom of the tank body (1), and the right sides of the upper and lower discharge ports (13) are fixedly connected to a discharge pipe (14). The top of the tank body (1) is fixedly connected to a feed pipe (15), and a bellows (16) is rotatably connected between the bottom of the feed pipe (15) and the top of the center of the connecting frame (53). The top of the bellows (16) is connected to the feed pipe (15), and the bottom is connected to the feed nozzle (531).

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