Impurity removal device for granular food processing

Abstract

The invention belongs to the technical field of particle food impurity removal, and particularly relates to a particle food processing impurity removal device which comprises an impurity removal box and a filter screen arranged in the impurity removal box, one side of the impurity removal box is communicated with a water inlet pipe and a blow-off pipe, and the particle food processing impurity removal device further comprises a scraping box movably arranged in the impurity removal box and used for scraping floating impurities; the suspension lifting mechanisms are symmetrically arranged at the top of the scraping box and are used for supporting the scraping box; the driving sliding mechanisms are symmetrically arranged on the two sides of an upper box opening of the impurity removal box and drive the scraping box to move in the impurity removal box through a connected suspension lifting mechanism; box openings in the two sides of the moving direction of the scraping box are in an open state, and a blocking net is movably mounted in the scraping box through a guide pushing assembly; according to the scheme, floating sundries can be rapidly collected, meanwhile, the collected sundries can be synchronously discharged, and the phenomenon that the floating sundries sink or cross the back face of the scraping box and cannot be rapidly and accurately collected due to excessive gathering on the front side of the advancing direction of the scraping box is avoided.

Description

Technical Field

[0001] This invention belongs to the field of impurity removal technology for granular foods, and in particular relates to an impurity removal device for processing granular foods. Background Technology

[0002] Food processing refers to the process of processing raw materials such as agricultural products, livestock products, and aquatic products into food or semi-finished products through physical, chemical, or biological methods. This process not only improves the safety, nutritional value, and sensory quality of food, but also extends its shelf life and facilitates its storage and transportation. In food processing, removing impurities from soybeans is an important step to ensure the quality of the final product.

[0003] To quickly remove impurities from granular foods, such as soybean products, the soybean products are often poured into a cleaning tank filled with washing water. The buoyancy of the washing water can float impurities such as shriveled soybeans and straw mixed in with the soybean products to the surface of the water. Then, the floating impurities are cleaned manually or mechanically, which makes it easier to remove impurities from granular foods. Although existing impurity removal equipment can perform flotation to remove impurities from granular foods, this equipment basically uses a moving scraper to move impurities floating on the liquid surface to both sides of the impurity removal tank, where they are then collected by collection boxes installed on both sides. Obviously, if too many impurities are scraped away on one side of the scraper's movement direction, the continuously accumulating impurities will sink back below the liquid surface or transition to the back of the scraper. This requires the scraper to move back and forth frequently in the impurity removal tank to effectively remove and clean the floating impurities, which in turn affects the efficiency of impurity removal for granular foods. Summary of the Invention

[0004] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution: This invention relates to a cleaning device for processing granular foods, comprising a cleaning box and a filter screen installed inside the cleaning box. One side of the cleaning box is connected to a water inlet pipe and a drain pipe. It also includes a scraping box, movably placed inside the cleaning box, for scraping away floating impurities. A suspension lifting mechanism is symmetrically installed on the top of the scraping box to support it. A drive sliding mechanism is symmetrically arranged on both sides of the upper opening of the cleaning box, driving the scraping box to move within the cleaning box via the connected suspension lifting mechanism. The openings of the scraping box on both sides in the direction of movement are open, and a barrier screen is movably installed inside the box via a guide pushing component. A collection groove is provided on the bottom of the scraping box, and a material discharge component is installed within the collection groove. When the scraping box moves within the cleaning chamber, the barrier mesh is located at the opening of the scraping box away from the direction of movement.

[0005] Preferably, the scraping box has supporting grooves on its front and rear side walls, and a moving cavity for the barrier net to move is formed between the two supporting grooves; the guiding and pushing assembly includes a guide rod fixed in the supporting groove, an insulating guide sleeve movably sleeved on the guide rod and installed on the barrier net, a first electromagnetic suction ring installed on the outer ring surface of the insulating guide sleeve, a second electromagnetic suction ring insulatingly installed on the groove wall of the supporting groove and aligned with the first electromagnetic suction ring, and a segmented insulating sleeve sleeved on the guide rod; The insulating sleeve is connected to the groove wall of the supporting slide and the end face of the barrier mesh at both ends, and the insulating sleeve wraps around the first electromagnetic suction ring and the second electromagnetic suction ring.

[0006] Preferably, the first electromagnetic catching ring is segmented by an insulating sheet, and coils are embedded in the corresponding end faces of the segmented first electromagnetic catching ring and second electromagnetic catching ring; the current directions of the coils embedded in the two second electromagnetic catching rings are opposite; the current directions of the coils embedded in the end faces of the two segmented first electromagnetic catching rings are also opposite.

[0007] Preferably, the scraping box has a funnel-shaped collection cover on both sides of the opening, and the outer opening of the collection cover is flat, and a pressure sensor is installed at the outer opening of the collection cover; an elastic membrane is connected between the two ends of the barrier mesh and the groove wall of the supporting slide, and the elastic membrane is flush with the front and rear side walls of the collection groove.

[0008] Preferably, the material discharge assembly includes a suction tube connected to one end side of the collection groove and a flexible tube detachably connected to the other end of the suction tube. The suction tube extends through the collection hood, and the connecting hose is movably supported on the suspension lifting mechanism by a support block. The other end of the connecting hose is connected to the suction unit outside the impurity removal box.

[0009] Preferably, the material discharge assembly further includes a spiral shaft rotatably mounted in the collection groove and spiral blades sleeved on the spiral shaft; The spiral shaft is connected to the output shaft of a columnar motor embedded in one end of the collection groove; the top outer ring of the spiral blade is located below the upper opening of the collection groove.

[0010] Preferably, the drive sliding mechanism includes a rectangular frame strip installed on both sides of the top of the impurity removal box, a ball screw rotatably installed inside the rectangular frame strip, a support slider connected to the ball screw by a ball nut, and a connecting block installed on the outside of the support slider. The rectangular strip is open towards the opening of the impurity removal box, and a motor for driving the ball screw is fixed at the end of the rectangular strip. The lower surface of the connecting block contacts the top wall of the upper opening of the impurity removal box, and a suspension lifting mechanism is installed on the connecting block.

[0011] Preferably, the suspension lifting mechanism includes connecting sleeves installed at the top of both ends of the scraping box, adjusting screws rotatably connected to the connecting sleeves via bushings, and rotating handles installed at the top of the adjusting screws; The connecting block has a threaded groove through which an adjusting screw is threaded.

[0012] Compared to the existing method of using a scraper to reciprocate to remove floating impurities, this solution has the following advantages: Firstly, this solution involves installing a movable scraping box inside the impurity removal box. The opening of the scraping box can be adjusted according to the direction of travel. The movement of the scraping box and the coordination of the internal material discharge components enable the scraping box to quickly collect floating debris while moving on the liquid surface, and simultaneously discharge the collected debris. This prevents floating debris from accumulating too much in front of the scraping box in the direction of travel, causing it to sink or cross the back of the scraping box, thus preventing it from being collected quickly and accurately. Secondly, since the barrier net can be blocked at the opening opposite to the direction of travel of the scraping box through the guide and push components, the scraping box can scrape and collect floating impurities whether it moves from left to right or right to left in the impurity removal box. The barrier net can also block impurities entering the scraping box at the same time, thereby further accelerating the scraping and cleaning effect of floating impurities in the impurity removal box.

[0013] Of course, any product implementing this invention does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present invention; Figure 2 This is an assembly diagram of the drive sliding mechanism, suspension lifting mechanism, and scraping box disclosed in this invention; Figure 3 This is a schematic diagram of the scraping box according to an embodiment of the present invention; Figure 4 This is a partial cross-sectional view of the scraping box according to an embodiment of the present invention; Figure 5 This is an exploded view of the assembly of the scraping box and the barrier mesh according to an embodiment of the present invention; Figure 6 This is an embodiment of the present invention. Figure 5 Enlarged view of point A in the middle; Figure 7 This is a schematic diagram of the drive sliding mechanism and suspension lifting mechanism according to an embodiment of the present invention.

[0016] In the diagram: 1. Waste removal box; 11. Water inlet pipe; 12. Sewage outlet pipe; 2. Filter screen; 3. Scraping box; 31. Collection groove; 32. Support slide; 33. Moving cavity; 34. Elastic membrane; 4. Barrier netting; 5. Guide pushing assembly; 51. Guide slide rod; 52. Insulating guide sleeve; 53. First electromagnetic catching ring; 54. Second electromagnetic catching ring; 55. Insulating sleeve; 6. Material discharge assembly; 61. Suction pipe; 62. Connecting hose; 63. Spiral shaft; 64. Spiral blades; 7. Drive sliding mechanism; 71. Rectangular strip; 72. Ball screw; 73. Support slider; 74. Connecting block; 8. Suspension lifting mechanism; 81. Connecting sleeve; 82. Adjusting screw; 83. Rotating handle; 9. Collection cover. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] In the description of this invention, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inner", "around", etc., which indicate orientation or positional relationship, are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting this invention.

[0019] Please see Figures 1-7As shown, the present invention is a cleaning device for processing granular food, including a cleaning box 1 and a filter screen 2 installed inside the cleaning box 1. The cleaning box 1 is connected to a water inlet pipe 11 and a sewage outlet pipe 12 on one side. It also includes a scraping box 3, movably placed inside the cleaning box 1, for scraping away floating impurities; a suspension lifting mechanism 8, symmetrically installed on the top of the scraping box 3, for supporting the scraping box 3; and a drive sliding mechanism 7, symmetrically arranged on both sides of the upper opening of the cleaning box 1, driving the scraping box 3 to move within the cleaning box 1 via the connected suspension lifting mechanism 8. The openings of the scraping box 3 on both sides in the direction of movement are open, and a barrier screen 4 is movably installed inside it via a guide pushing component 5. A collection groove 31 is provided on the bottom of the scraping box 3, and a material discharge component 6 is installed within the collection groove 31. When the scraping box 3 moves inside the cleaning box 1, the barrier net 4 is located at the opening of the scraping box 3 away from the direction of movement. It should be noted that the two sets of symmetrical drive sliding mechanisms 7 are arranged along the length of the impurity removal box 1. The water inlet pipe 11 is installed on the outside of the impurity removal box 1 near the upper box opening. The sewage pipe 12 is installed at the bottom of the impurity removal box 1 and is located below the filter screen 2. The filter screen 2 and the bottom of the impurity removal box 1 are supported by a ramp platform. The ramp platform is used to collect the wastewater and non-floating impurities after cleaning to the sewage pipe 12. As a preferred embodiment of this solution, the impurity removal device of this solution performs the following process for removing impurities from granular foods (soybean products): The first step is to add water. First, close the valve connected to the drain pipe 12, and then open the valve connected to the inlet pipe 11 to allow the water pump to deliver the cleaning water to the impurity removal box 1. When the water level of the cleaning water injected into the impurity removal box 1 is lower than the opening of the inlet pipe 11, stop adding water. The operator uses a screw conveyor or other conveying equipment to evenly feed the soybeans to be removed into the impurity removal box 1, and constantly observes the water level in the impurity removal box 1. When the soybeans are continuously fed into the impurity removal box 1 and the water level of the cleaning water in the impurity removal box 1 rises to the safe level at the upper opening of the impurity removal box 1, stop feeding the soybeans to be removed into the impurity removal box 1. The second step is agitation and impurity removal. After a certain amount of soybeans to be removed are filled into the impurity removal box 1, the operator controls the scraping box 3 to descend into the washing water via the suspension lifting mechanism 8. When the scraping box 3 contacts the soybeans on the filter screen 2, the guide pushing component 5 drives the blocking net 4 to move to the opening on the side of the scraping box 3's travel direction, so that the blocking net 4 can block the opening on the side of the scraping box 3's travel direction. Then, the scraping box 3 is lowered and inserted into the soybeans again. For example, when the operator controls the sliding mechanism 7 via the handheld control terminal to drive the scraping box 3... Scraping box 3 slides from left to right inside cleaning box 1 (at this time, the barrier net 4 is located at the right open end of scraping box 3). The moving scraping box 3 can stir the soybeans in cleaning box 1, so that the shriveled beans and straw and other impurities mixed in the soybeans piled on filter screen 2 can quickly float to the surface of the liquid. At the same time, it can also settle small particles (stones or mud) that cannot float to the bottom of filter screen 2. After the soybeans to be washed in cleaning box 1 have been stirred for a certain period of time, the operator raises scraping box 3 to the surface of the washing water through the suspension lifting mechanism, waiting to scrape and collect the floating impurities. The third step is impurity scraping. When a certain amount of impurities float in the impurity removal box 1, the operator controls two sets of drive sliding mechanisms 7 to work synchronously via a handheld control terminal. This causes the scraping box 3 to move within the impurity removal box 1 via the suspension lifting mechanism 8. The front and rear ends of the scraping box 3 are attached to the front and rear walls of the impurity removal box 1. As the scraping box 3 moves from left to right within the impurity removal box 1, the barrier net 4 is pushed to the left open end of the scraping box 3 by the guide pushing component 5. The right opening of the scraping box 3 is then open (the opening in the direction of travel). As the scraping box 3 continues to move, the impurities floating in front of the scraping box 3 in the direction of travel are removed. The impurities will enter the scraping box 3 through the open box opening, and the barrier net 4 located on the back of the scraping box 3 will block the impurities entering the box, but will not allow the cleaning water to accumulate in the scraping box 3. When the floating impurities continuously enter the scraping box 3, the material discharge component 6 installed in the collection groove 31 will first transport and collect the collected impurities to one end of the bottom of the scraping box 3, and then discharge them out of the scraping box 3 through the material discharge component 6. This makes it easy to scrape and collect the floating impurities in the scraping box 3, and at the same time, it can be discharged from the scraping box 3. This can prevent too many impurities from accumulating in the scraping box 3, which would affect its ability to collect floating impurities. When the scraping box 3 moves from left to right and contacts the right side wall of the impurity removal box 1, the guide pushing component 5 will drive the barrier net 4 located at the left side opening of the scraping box 3 to the right side opening. When the drive sliding mechanism 7 drives the scraping box 3 to slide from right to left in the impurity removal box 1 through the suspension lifting mechanism 8, the impurities floating in the direction of travel will enter the scraping box 3 through the left side opening and then be discharged and collected by the material discharge component 6. The fourth step is soybean discharge. After the soybeans have been cleaned in the impurity removal box 1, in order to quickly discharge the cleaned soybeans from the filter screen 2, the suspension lifting mechanism 8 is driven to work, so that the scraping box 3 is lowered in the impurity removal box 1 onto the filter screen 2. Then, the sliding mechanism 7 is driven to work, so that the scraping box 3 moves from left to right or from right to left on the upper surface of the filter screen 2. When the scraping box 3 moves, the opening in the direction of travel will open, while the opening in the opposite direction of the scraping box 3 will be blocked by the blocking net 4. Thus, the movement of the scraping box 3 will cause the soybeans to enter its interior. Then, the material discharge component 6 installed in the collection groove 31 will discharge the collected soybeans from the scraping box 3, thereby facilitating the rapid discharge and collection of the cleaned soybeans. Fifth step, wastewater discharge. When it is necessary to periodically discharge the cleaning water used in the impurity removal box 1, turn on the sewage pump connected to the sewage pipe 12 to suck out the non-floating impurities that are filtered and accumulated below the filter screen 2. Then, add cleaning water to the impurity removal box 1 through the water inlet pipe 11 to clean the residual wastewater impurities in the impurity removal box 1. Then close the valve on the sewage pipe 12 so that the water inlet pipe 11 can inject cleaning water into the impurity removal box 1 to remove the impurities from the soybean particles to be removed. Compared to the existing method of using a scraper to remove floating impurities, this solution has the following advantages: Firstly, this solution provides a movable scraping box 3 inside the impurity removal box 1. The opening of the scraping box 3 can be adjusted according to the direction of travel. Thus, the movement of the scraping box 3 and the cooperation of the material discharge component 6 installed inside enable the scraping box 3 to quickly collect floating debris while moving on the liquid surface, and simultaneously discharge the collected debris. This prevents the floating debris from accumulating too much in front of the scraping box 3 in the direction of travel, causing it to sink or cross the back of the scraping box 3, thus preventing it from being collected quickly and accurately. Secondly, since the barrier net 4 can be blocked at the opposite opening of the scraping box 3 in the direction of travel by the guide pushing component 5, the scraping box 3 can scrape and collect floating impurities in the impurity removal box 1 whether it moves from left to right or from right to left. The barrier net 4 can also block the impurities entering the scraping box 3 at the same time, thereby further accelerating the scraping and cleaning effect of floating impurities in the impurity removal box 1. Thirdly, by adjusting the height of the scraping box 3 through the suspension lifting mechanism 8, the scraping box 3 can be inserted into the washing water to remove suspended impurities, or part of the scraping box 3 can be submerged in the washing water to scrape and clean floating impurities. At the same time, the scraping box 3 can also be submerged on the filter screen 2. As the scraping box 3 moves, the soybeans after impurity removal can be collected and discharged, thus eliminating the need to install a separate discharge device in the impurity removal box 1 to discharge the soybeans after impurity removal from the impurity removal box 1.

[0020] See Figures 3 to 6 As shown, the scraping box 3 has support grooves 32 on the front and rear side walls inside, and a moving cavity 33 for the moving of the barrier net 4 is formed between the two support grooves 32. The guide pushing assembly 5 includes a guide slide rod 51 fixed in the support slide groove 32, an insulating guide sleeve 52 movably sleeved on the guide slide rod 51 and installed on the barrier net 4, a first electromagnetic suction ring 53 installed on the outer ring surface of the insulating guide sleeve 52, a second electromagnetic suction ring 54 insulatingly installed on the groove wall of the support slide groove 32 and aligned with the first electromagnetic suction ring 53, and a segmented insulating sleeve 55 sleeved on the guide slide rod 51. The two ends of the insulating sleeve 55 are respectively connected to the groove wall of the support groove 32 and the end face of the barrier net 4, and the insulating sleeve 55 wraps the first electromagnetic suction ring 53 and the second electromagnetic suction ring 54. The first electromagnetic catching ring 53 is segmented by insulating sheets, and coils are embedded in the corresponding end faces of the segmented first electromagnetic catching ring 53 and second electromagnetic catching ring 54. The coils embedded in the two second electromagnetic absorbing rings 54 are connected in opposite directions; Among them, the coil current directions embedded in the end faces of the two segmented first electromagnetic absorbing rings 53 are also opposite; It should be noted that the coil embedded in the end face of the second electromagnetic chuck 54 installed on the left side of the support slide 32 and the coil embedded in the end face of the segmented first electromagnetic chuck 53 installed on the left side of the barrier net 4 are connected by opposite currents. When the two coils are energized, the first electromagnetic chuck 53 and the second electromagnetic chuck 54 generate opposite attraction forces. Similarly, the coil embedded in the end face of the second electromagnetic chuck 54 installed on the right side of the support slide 32 and the coil embedded in the end face of the corresponding first electromagnetic chuck 53 are connected by opposite currents. When the two coils are energized, the first electromagnetic chuck 53 and the second electromagnetic chuck 54 generate opposite attraction forces. Both the first electromagnetic chuck 53 and the second electromagnetic chuck 54 are connected to the handheld control terminal through electrical signals. As a preferred embodiment of this solution, the switching process of the barrier mesh 4 within the moving cavity 33 of the scraping box 3 is as follows: When the scraping box 3 moves from left to right in the impurity removal box 1, if the barrier net 4 is located at the right opening of the scraping box 3, it is necessary to de-energize the coil embedded in the first electromagnetic absorbing ring 53 and the corresponding coil embedded in the second electromagnetic absorbing ring 54 on the right side of the barrier net 4, so that the first electromagnetic absorbing ring 53 and the second electromagnetic absorbing ring 54 lose their magnetic attraction. At the same time, it is necessary to energize the coil embedded in the first electromagnetic absorbing ring 53 and the corresponding coil embedded in the second electromagnetic absorbing ring 54 on the left side of the barrier net 4, so that the first electromagnetic absorbing ring 53 and the second electromagnetic absorbing ring 54 generate attraction. Since part of the barrier net 4 is slidably connected to the guide slide rod 51 through the insulating guide sleeve 52, the magnetic attraction of the corresponding first electromagnetic absorbing ring 53 and the second electromagnetic absorbing ring 54 on the left side will cause the barrier net 4 to slide from the right opening to the left opening in the scraping box 3, so that the right (traveling direction) opening of the scraping box 3 is in an open state, which facilitates the collection of impurities floating on the liquid surface on the left side of the scraping box 3. Similarly, when the scraping box 3 moves to the right side wall of the impurity removal box 1, and the scraping box 3 needs to move from right to left, the coil embedded in the first electromagnetic suction ring 53 on the left and the coil embedded in the corresponding second electromagnetic suction ring 54 on the right are de-energized, and the coil embedded in the first electromagnetic suction ring 53 on the right and the coil embedded in the corresponding second electromagnetic suction ring 54 on the right are energized. The magnetic attraction force generated by these coils will cause the barrier net 4 to slide from the left side opening of the scraping box 3 to the right side opening, so that the left side (direction of travel) opening of the scraping box 3 is open, which makes it easier to scrape and collect the impurities floating on the liquid surface on the left side of the scraping box 3. It should be further explained that the front-to-back length of the moving cavity 33 is greater than the front-to-back length of the collecting groove 31, and the left-to-right width of the moving cavity 33 is greater than the left-to-right width of the collecting groove 31. This allows the support grooves 32 opened at the front and back of the moving cavity 33 to support the sliding barrier net 4, preventing the barrier net 4 from falling into the collecting groove 31 when it slides in the moving cavity 33, which would affect the barrier net 4's ability to block the collected impurities at the opening of the scraping box 3. Furthermore, the distance between the left or right side wall of the collecting groove 31 and the left or right side wall of the moving cavity 33 is equal to the thickness of the barrier net 4. Therefore, when the barrier net 4 moves within the scraping box 3 to fit against the left side wall of the moving cavity 33, the surface of the barrier net 4 will be flush with the left side wall of the collecting groove 31. Similarly, when the barrier net 4 fits against the right side wall of the moving cavity 33, the surface of the barrier net 4 will be flush with the right side wall of the collecting groove 31. This allows impurities entering the scraping box 3 to accurately fall into the collecting groove 31, preventing impurities from falling into the non-connected area between the moving cavity 33 and the collecting groove 31. Consequently, impurities falling into the moving cavity 33 would obstruct the normal sliding of the barrier net 4, thus affecting the movement of the barrier net 4 within the scraping box 3 and blocking impurities entering the scraping box 3.

[0021] See Figures 3 to 6 As shown, the scraping box 3 has a funnel-shaped collection cover 9 on both sides of the opening, and the outer opening of the collection cover 9 is flat, and a pressure sensor is installed at the outer opening of the collection cover 9. An elastic membrane 34 is connected between the two ends of the barrier net 4 and the wall of the support groove 32, and the elastic membrane 34 is flush with the front and rear side walls of the collection groove 31. As a preferred embodiment of this solution, the funnel-shaped collection cover 9 can quickly collect and process impurities floating on the liquid surface when the scraping box 3 moves in the impurity removal box 1. The elastic membrane 34 can prevent the impurities collected in the scraping box 3 from entering the support chute 32, which would affect the effect of the barrier net 4 sliding left and right in the support chute 32. Since the outer opening of the collection hood 9 is flat, when the scraping box 3 moves close to the left or right side wall of the impurity removal box 1, the opening of the collection hood 9 will fit against the wall of the impurity removal box 1, creating a near-sealed space between the scraping box 3 and the internal cavity of the collection hood 9. When the suction force generated by the material discharge component 6 draws out the impurities collected in the scraping box 3, the impurities remaining in the collection hood 9 will also be drawn out simultaneously. Meanwhile, because the other side of the scraping box 3 is blocked by the barrier net 4, the negative pressure suction force generated inside the scraping box 3 will act on the barrier net 4, causing the cleaning water outside the barrier net 4 to... Entering the scraping box 3, the impurities adhering to or accumulating in the mesh of the barrier net 4 can be backwashed. This prevents the impurities accumulated on the barrier net 4 from being forced into the back of the scraping box 3 by the impact of the water flow when the scraping box 3 moves back and forth in the impurity removal box 1. As a result, the scraping box 3 needs to move back and forth in the impurity removal box 1 multiple times to fully scrape and clean the floating impurities in the impurity removal box 1. At the same time, the cleaning water drawn into the scraping box 3 will also rinse and discharge the impurities collected in the scraping box 3, preventing impurities from adhering and accumulating in the scraping box 3 or the collection cover 9. It should be noted that the pressure sensor is electrically connected to the handheld control terminal. When the outer opening of the collection cover 9 is attached to the side wall of the impurity removal box 1, the pressure sensor will transmit the pressure signal to the handheld control terminal, causing the drive sliding mechanism 7 to stop working. When the operator observes that only washing water is discharged from the material discharge component 6, the handheld control terminal will control the drive sliding mechanism 7 to work in reverse, causing the scraping box 3 to move in the reverse direction within the impurity removal box 1. When the outer opening of the collection cover 9 is separated from the side wall of the impurity removal box 1, the pressure sensor will disconnect. Then, the handheld control terminal will control the coils embedded in the end faces of the first electromagnetic suction ring 53 and the second electromagnetic suction ring 54 to be energized or de-energized, thereby enabling the barrier net 4 to move in the scraping box 3 to the position opposite to the box opening. When the barrier net 4 moves backward in the direction of travel within the scraping box 3, the pushing force of the cleaning water in the impurity removal box 1 acts on the barrier net 4. Combined with the magnetic attraction of the first electromagnetic suction ring 53 and the second electromagnetic suction ring 54, this accelerates the sliding speed of the barrier net 4 within the scraping box 3, allowing it to accurately slide to the opening of the scraping box 3. The magnetic attraction of the first electromagnetic suction ring 53 and the second electromagnetic suction ring 54 keeps the barrier net 4 fixed at the opening of the scraping box 3. This is especially important to prevent the suction force generated within the scraping box 3 from causing the barrier net 4 to move freely at the opening when the opening of the collection cover 9 is pressed against the wall of the impurity removal box 1, which would affect the backwashing effect of the barrier net 4.

[0022] See Figure 2 , Figure 4 and Figure 7 As shown, the material discharge assembly 6 includes a suction tube 61 connected to one end side of the collection groove 31 and a flexible tube 62 detachably connected to the other end of the suction tube 61. The suction tube 61 penetrates the cover of the collection cover 9, and the guide hose 62 is movably supported on the suspension lifting mechanism 8 by a support block. The other end of the guide hose 62 is connected to the suction unit outside the impurity removal box 1. In a preferred embodiment of this solution, most of the impurities entering the scraping box 3 will be discharged outside the impurity removal box 1 for collection through the suction pipe 61, the connecting hose 62, and the suction unit connected to the outer port of the connecting hose 62. The length of the connecting hose 62 is sufficient for the scraping box 3 to move left and right or up and down within the impurity removal box 1. The tube body of the suction pipe 61 passes through the collection cover 9 so that it will not interfere with the sealing between the cover opening of the collection cover 9 and the box wall of the impurity removal box 1. The connecting hose 62 is movably supported by the support block so that it can move synchronously with the scraping box 3 within the impurity removal box 1. The nozzle of the suction tube 61 is connected to one end of the collection groove 31, so that the suction tube 61 passing through the collection cover 9 will not block too much of the impurities entering the scraping box 3. Since the inlet of the suction tube 61 is connected to the collection groove 31 located below the scraping box 3, when the lower part of the scraping box 3 is submerged in the liquid surface to scrape and clean the impurities floating on the liquid surface, the suction force generated by the inlet of the suction tube 61 can quickly suck out the impurities collected in the scraping box 3. If the inlet of the suction tube 61 is installed on the top of the scraping box 3, it will only be possible to suck out a large amount of impurities that have accumulated in the scraping box 3, which will cause the impurities to accumulate excessively in the scraping box 3. It should be noted that the diameter design of the suction pipe 61 and the connecting hose 62 not only prevents the rapid suction and discharge of floating impurities collected in the scraping box 3, but also accurately discharges the soybean particles collected by the scraping box 3 after they fall to the surface of the filter screen 2. Although the suction pipe 61 and the connecting hose 62 can suction and discharge some of the cleaning water, the operator can periodically start the pump connected to the water inlet pipe 11 to periodically replenish the cleaning water in the impurity removal box 1.

[0023] Further specified, the material discharge assembly 6 also includes a spiral shaft 63 rotatably mounted in the collection groove 31 and a spiral blade 64 sleeved on the spiral shaft 63; The spiral shaft 63 is connected to the output shaft of a columnar motor embedded in the wall of one end of the collection groove 31; the top outer ring of the spiral blade 64 is located below the upper opening of the collection groove 31, so that it will not interfere with the blocking net 4 as the scraping box 3 slides from one open side to the other open side. When impurities continuously enter the scraping box 3, the columnar motor can be controlled to work as needed, so that it drives the spiral blades 64 to rotate through the spiral shaft 63. This allows the spiral blades 64 to drive the impurities gathered in the collection groove 31 to move towards the inlet of the suction tube 61, thereby further accelerating the discharge of impurities entering the scraping box 3. Similarly, when the scraping box 3 descends above the filter screen 2, since the vertical height of the outer opening of the collecting cover 9 is greater than the vertical height of the scraping box 3, the scraping box 3 will quickly collect the cleaned soybeans into the scraping box 3 through the collecting cover 9 as it moves above the filter screen 2. Then, through the rotation of the spiral shaft 63 and the spiral blades 64, the soybean particles entering the scraping box 3 can be accurately transported to the opening of the suction pipe 61. This prevents the soybean particles from being unable to be quickly discharged from the scraping box 3 due to the small suction force generated by the opening of the suction pipe 61 because the soybean particles are relatively heavy.

[0024] See Figure 1 , Figure 2 and Figure 7 As shown, the drive sliding mechanism 7 includes a rectangular strip 71 installed on both sides of the top of the impurity removal box 1, a ball screw 72 rotatably installed in the rectangular strip 71, a support slider 73 connected to the ball screw 72 by a ball nut, and a connecting block 74 installed on the outside of the support slider 73. The rectangular strip 71 is open towards the opening of the impurity removal box 1, and a motor for driving the ball screw 72 to rotate is fixed at the end of the rectangular strip 71. The lower surface of the connecting block 74 is in contact with the top wall of the upper opening of the impurity removal box 1, and a suspension lifting mechanism 8 is installed on the connecting block 74. In a preferred embodiment of this solution, a handheld control terminal is used to drive the motors fixed at the ends of the two rectangular strips 71 to work synchronously. Through the cooperation of the ball screw 72 and the ball nut, the motors drive the support slider 73 to slide along the length of the rectangular strip 71. At this time, the symmetrical connecting block 74 will drive the scraping box 3 to move in the impurity removal box 1 through the symmetrical suspension lifting mechanism 8, so as to quickly collect and discharge the floating impurities and the removed soybean particles in the impurity removal box 1.

[0025] See Figure 1 , Figure 2 and Figure 7 As shown, the suspension lifting mechanism 8 includes a connecting sleeve 81 installed at the top of both ends of the scraping box 3, an adjusting screw 82 rotatably connected to the connecting sleeve 81 via a bushing, and a rotating handle 83 installed at the top of the adjusting screw 82; wherein, a threaded groove for threaded connection of the adjusting screw 82 is provided through the connecting block 74. As a preferred embodiment of this solution, when it is necessary to adjust the height of the scraping box 3 in the impurity removal box 1, the rotating handle 83 is rotated synchronously so that the scraping box 3 connected by the connecting sleeve 81 is driven to rise and fall in the impurity removal box 1 through the cooperation of the adjusting screw 82 and the threaded groove of the connecting block 74, thereby facilitating the rapid collection and discharge of impurities floating in the impurity removal box 1 and soybean particles washed above the filter screen 2.

[0026] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0027] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A purification device for processing granular foods, comprising a purification box and a filter screen installed inside the purification box, wherein a water inlet pipe and a sewage outlet pipe are connected to one side of the purification box, characterized in that, Also includes A scraping box is movably placed inside the impurity removal box and is used to scrape off floating impurities; The suspension lifting mechanism is symmetrically installed on the top of the scraping box to support the scraping box; The drive sliding mechanism is symmetrically arranged on both sides of the upper opening of the impurity removal box, and drives the scraping box to move inside the impurity removal box through the connected suspension lifting mechanism; The scraping box has two open openings on both sides in the direction of movement, and a barrier net is movably installed inside it through a guide and push assembly. The scraping box has a collection groove at the bottom of its interior, and a material discharge component is installed in the collection groove. When the scraping box moves within the cleaning chamber, the barrier mesh is located at the opening of the scraping box away from the direction of movement.

2. The impurity removal device for processing granular foods according to claim 1, characterized in that, The scraping box has support grooves on its front and rear side walls, and a moving cavity for the barrier net to move is formed between the two support grooves. The guiding and pushing assembly includes a guide slide rod fixed in the support slide groove, an insulating guide sleeve movably sleeved on the guide slide rod and installed on the barrier net, a first electromagnetic suction ring installed on the outer ring surface of the insulating guide sleeve, a second electromagnetic suction ring insulatingly installed on the groove wall of the support slide groove and aligned with the first electromagnetic suction ring, and a segmented insulating sleeve sleeved on the guide slide rod. The insulating sleeve is connected to the groove wall of the supporting slide and the end face of the barrier mesh at both ends, and the insulating sleeve wraps around the first electromagnetic suction ring and the second electromagnetic suction ring.

3. The impurity removal device for processing granular foods according to claim 2, characterized in that, The first electromagnetic catching ring is segmented by insulating sheets, and coils are embedded in the corresponding end faces of the segmented first electromagnetic catching ring and second electromagnetic catching ring. The coils embedded in the two second electromagnetic wicking rings are connected by currents in opposite directions; The coil currents embedded in the two end faces of the first electromagnetic wicking rings in the segment are also in opposite directions.

4. The impurity removal device for processing granular foods according to claim 2, characterized in that, The scraping box has a funnel-shaped collection cover on both sides of the opening, and the outer opening of the collection cover is flat, and a pressure sensor is installed at the outer opening of the collection cover. The two ends of the barrier net are connected to the walls of the support trough with elastic membranes, and the elastic membranes are flush with the front and rear walls of the collection groove.

5. The impurity removal device for processing granular foods according to claim 1, characterized in that, The material discharge assembly includes a suction tube connected to one end side of the collection groove and a flexible tube detachably connected to the other end of the suction tube. The suction tube extends through the collection hood, and the connecting hose is movably supported on the suspension lifting mechanism by a support block. The other end of the connecting hose is connected to the suction unit outside the impurity removal box.

6. The impurity removal device for processing granular foods according to claim 5, characterized in that, The material discharge assembly also includes a spiral shaft rotatably mounted in the collection groove and spiral blades sleeved on the spiral shaft; The spiral shaft is connected to the output shaft of a columnar motor embedded in one end of the collection groove; the top outer ring of the spiral blade is located below the upper opening of the collection groove.

7. The impurity removal device for processing granular foods according to claim 4, characterized in that, The drive sliding mechanism includes rectangular strips installed on both sides of the top of the impurity removal box, a ball screw rotatably installed inside the rectangular strips, a support slider connected to the ball screw by ball nuts, and a connecting block installed on the outside of the support slider. The rectangular strip is open towards the opening of the impurity removal box, and a motor for driving the ball screw is fixed at the end of the rectangular strip. The lower surface of the connecting block contacts the top wall of the upper opening of the impurity removal box, and a suspension lifting mechanism is installed on the connecting block.

8. The impurity removal device for processing granular foods according to claim 7, characterized in that, The suspension lifting mechanism includes connecting sleeves installed at the top of both ends of the scraping box, adjusting screws rotatably connected to the connecting sleeves via bushings, and rotating handles installed at the top of the adjusting screws. The connecting block has a threaded groove through which an adjusting screw is threaded.

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