Intelligent solid-liquid separation device for driving filter cloth to walk based on stepping motor

Abstract

The invention relates to the technical field of solid-liquid separation, in particular to an intelligent solid-liquid separation device for driving filter cloth to walk based on a stepping motor. Comprising a rack and a guide rail on the rack; the guide rail is movably connected with a plurality of mounting plates; a filter pressing plate is fixedly connected to the mounting plate; the adjacent mounting plates are connected through a chain, and the mounting plate on the rightmost side is connected with an output shaft of a first motor through a pull rope; filter pressing grooves are formed in the two sides of the filter pressing plate; the two sides of the material in the filter pressing cavity are both padded with the movable filter cloth, so that the material cannot be in direct contact with the expanded diaphragm in the filter pressing process, the cleanness of the diaphragm is ensured, and meanwhile, the filter cake discharging difficulty is reduced; in addition, the filter cakes are discharged by rolling the filter cloth in the storage shell, compared with an existing mode, the discharging thoroughness of the filter cakes on the filter cloth is improved, and the separation effect and stability of the solid-liquid separation device are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of solid-liquid separation, and specifically to an intelligent solid-liquid separation device based on a stepping motor-driven filter cloth for walking. Background Art

[0002] In the field of food processing, solid-liquid separation of liquids is usually carried out by a vacuum drum filter, a common plate and frame filter press, a fully automatic intelligent solid-liquid separator, etc. However, in the actual operation process, the vacuum drum filter has high operating costs, the common plate and frame filter press has low automation, while the fully automatic intelligent solid-liquid separator has a very high degree of automation, almost no manual participation in the solid-liquid separation process, and the operating costs are lower than those of the vacuum drum filter. It is an ideal intelligent solid-liquid separation device.

[0003] At present, the working principle of the intelligent solid-liquid separation device is that the material first enters the filter press cavity along the feed pipe. Subsequently, the diaphragm in the filter press cavity expands to squeeze one side of the material, and the other side of the material contacts the filter cloth, so that the liquid in the material flows out through the filter cloth on the other side under extrusion, and the solid part of the material is intercepted in the filter chamber to form a filter cake. Subsequently, multiple filter plates are controlled to separate and expand, and the filter cloth is controlled to move up and down under the rotation of the transmission shaft, so that the combined part of the filter cloth and the filter cake changes from a surface to a line, realizing the separation of the filter cloth and the filter cake. For example, in the digital intelligent acid and alkali-resistant special film high-dry solid-liquid separation filter press system with the publication number CN118831359A and the patent theme name we applied for previously, this principle is adopted.

[0004] Although the above technology can improve the separation effect of the filter cake and the filter cloth, the following defects still remain unresolved: a) In order to ensure that the material in the filter press cavity is squeezed by the diaphragm, only one side of the material in the filter press cavity contacts the filter cloth. Therefore, after multiple filter plates are expanded, some materials also adhere to the diaphragm, making it difficult to handle the materials on the diaphragm; b) Although the combined part of the filter cake and the filter cloth has been improved from a surface to a line, it still does not bypass the essence that the filter cake on the filter cloth is discharged by gravity. Thus, it is difficult to handle some stubborn filter cakes. Summary of the Invention

[0005] In order to make up for the deficiencies of the prior art, the present invention proposes an intelligent solid-liquid separation device based on a stepping motor-driven filter cloth for walking. In the present invention, filter cloths that can move are padded on both sides of the material in the filter press cavity, so that the material does not directly contact the expanded diaphragm during the filter press process, ensuring the cleanliness of the diaphragm and at the same time reducing the difficulty of discharging the filter cake; in addition, the filter cake is discharged by winding the filter cloth into the storage shell. Compared with the existing method, the discharge thoroughness of the filter cake on the filter cloth is improved. The more thorough the treatment of the filter cake on the filter cloth, the smaller the impact on the next filter press process, improving the separation effect and stability of the solid-liquid separation device.

[0006] The technical solution adopted by the present invention to solve its technical problems is as follows: An intelligent solid-liquid separation device based on a stepping motor driving a filter cloth to move, which includes a frame and guide rails on the frame; a plurality of mounting plates are movably connected to the guide rails; filter pressing plates are fixedly connected to the mounting plates; adjacent mounting plates are connected by a chain, and the rightmost mounting plate is connected to the output shaft of a first motor through a pull rope; filter pressing grooves are provided on both sides of the filter pressing plate; a filter pressing cavity is formed after adjacent two filter pressing plates approach each other; a diaphragm communicated by a liquid inlet pipe is provided at the bottom of the filter pressing groove on the left side of the filter pressing plate; a net plate is fixedly connected to the bottom of the filter pressing groove on the right side of the filter pressing plate through a support block; the space of the filter pressing groove on the left side of the net plate communicates downward with a drain pipe; the front and rear sides of the filter pressing plate are connected to a receiving shell; a rotating rod is rotatably connected to the upper and lower parts of the receiving shell; the rotating rod at the rear position is rotatably connected to the receiving shell through a torsion spring; the rotating rod at the front position rotates during the unfolding process of the filter pressing plate; filter cloths are provided on both the left and right sides of the filter pressing plate; the end of the filter cloth passes through a receiving groove on the receiving shell and is connected to the outer wall of the rotating rod; avoiding grooves for the filter cloth to move are provided at the front and rear positions of the notch of the filter pressing groove.

[0007] Preferably, racks are fixedly connected horizontally to the left and right of the frame; a gear is fixedly connected to the upper end of the rotating rod at the front position; the gear meshes with the rack.

[0008] Preferably, a plurality of notches are arranged at intervals on the side where the rack meshes with the gear; the meshing length of the gear and rack for storing the filter cloths on both the left and right sides of the filter pressing plate is the transmission length; the transmission length is less than the distance between adjacent notches.

[0009] Preferably, the receiving shell is rotatably connected to the rotating rod through a rotating hole; a movable groove communicated with the inner wall of the rotating hole is provided on the outer wall of the receiving shell; a movable strip is movably connected up and down in the movable groove; an inclined ring groove is obliquely arranged on the outer wall of the rotating rod; an upper limit point and a lower limit point are arranged in the inclined ring groove; the upper limit point and the lower limit point are staggered in the vertical direction; one end of the movable strip is movably connected to the inclined ring groove, and the other end is fixedly connected downward to a vertical strip; the vertical strip is close to the notch of the receiving groove and contacts the filter cloth.

[0010] Preferably, the movable groove is located above the filter cloth; the movable strip in the movable groove moves above the filter cloth.

[0011] Preferably, a plurality of dialing strips are fixedly connected to the position of the vertical strip facing the direction of the filter cloth; the plurality of dialing strips are evenly distributed in the length direction of the vertical strip, and the length increases as it approaches the middle section of the vertical strip.

[0012] Preferably, a circular groove is provided inside the rotating rod; a rod groove is provided through the inner wall of the circular groove and the outer wall of the rotating rod; a circular hole is provided through the circular groove downward; the round rod is movably connected in the circular hole; the front end of the filter cloth passes through the rod groove and is fixedly connected to the outer wall of the round rod; the top of the round rod is fixedly connected to a block; a square groove is provided on the upper inner wall of the circular groove.

[0013] Preferably, a first magnet is embedded in the bottom of the square groove; a second magnet is embedded in the upper surface of the block; and the first magnet and the second magnet are magnetically attracted to each other.

[0014] Preferably, the front and rear outer walls of the filter press plate are provided with replacement grooves; the replacement strip is connected to the replacement groove in a sliding seal; the replacement strip is fixedly connected to the outer wall of the storage shell; the replacement groove and the replacement strip are isosceles trapezoidal in shape; the lower surface of the filter press plate is threadedly connected to a bolt; the lower end of the bolt is in contact with the lower end of the replacement strip.

[0015] The beneficial effects of the present invention are as follows: 1. The present invention provides movable filter cloths on both sides of the material in the filter press chamber, so that the material will not directly contact the expanded diaphragm during the filter press process, thereby ensuring the cleanliness of the diaphragm and reducing the difficulty of unloading the filter cake; in addition, the filter cake is unloaded by rolling the filter cloth in a storage shell. Compared with the existing method, the filter cake unloading on the filter cloth is more thorough, and the more thoroughly the filter cake on the filter cloth is treated, the less impact it has on the next filter press process, thereby improving the separation effect and stability of the solid-liquid separation device.

[0016] 2. In the process of rightward movement and expansion of multiple filter press plates of the present invention, the rotating rod rotates to drive the filter cloths on the left and right sides of the filter press plates to be stored forward into the storage shell. In the case that the moving distance of some gears exceeds the transmission length, the gears will pass through the gap to release the meshing of the gears and the rack. The gears at the gap position will move away and mesh with the rack again, so that the gears drive the rotating rod at the front position to rotate again, thereby making the filter cloths on the left and right sides of the filter press plates move forward again. In this way, the filter cloths on the left and right sides of the filter press plates move back and forth, making it easier for waste material on the filter cloths to be thrown off, thereby improving the waste material treatment effect on the filter cloths.

[0017] 3. The shifting bar near the end of the vertical bar of the present invention delays the shifting of the filter cloth compared to the shifting bar near the middle of the vertical bar. In this way, when wrinkles appear on the filter cloth, the shifting bar will spread out the wrinkles on the filter cloth from the middle to the edge in sequence, so that the filter cloth can be stored in the storage shell while remaining flat, thereby improving the stability of the filter cloth. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention is further described below in conjunction with the accompanying drawings and implementation modes.

[0019] Figure 1is a perspective view of the original solid-liquid separation device; Figure 2 is Figure 1 a perspective view of a single filter plate in Figure 3 is a perspective view of the present invention; Figure 4 is Figure 3 an enlarged view of part A in Figure 5 is Figure 3 an enlarged view of part B in Figure 6 is a perspective view of the mounting plate and the filter plate in the present invention; Figure 7 is Figure 6 a perspective view from another angle of Figure 8 is Figure 7 an enlarged view of part C in Figure 9 is Figure 7 an enlarged view of part D in Figure 10 is a perspective view of the support block and the mesh plate in the present invention; Figure 11 is a cross-sectional view of the filter plate in the front and rear directions of the present invention; Figure 12 is a cross-sectional view of the filter plate and the storage shell in a top view state of the present invention; Figure 13 is a schematic cross-sectional view of the round bar in the present invention.

[0020] In the figure: frame 1, guide rail 11, rack 12, notch 121, mounting plate 2, filter plate 3, filter tank 31, liquid inlet pipe 33, diaphragm 34, support block 35, mesh plate 36, drain pipe 37, avoidance groove 38, replacement groove 39, storage shell 4, storage groove 41, rotation hole 42, movable groove 43, rotating rod 5, gear 52, inclined ring groove 53, round groove 54, rod groove 55, round hole 56, round bar 57, square block 58, second magnet 581, square groove 59, first magnet 591, filter cloth 6, movable strip 7, vertical strip 71, dial strip 72, replacement strip 8, bolt 9. Detailed implementation manners

[0021] In order to make the technical means, creative features, achieved purposes and effects of the present invention easy to understand, the present invention will be further described below in conjunction with specific implementation manners.

[0022] As Figures 1 to 13 shown, the present invention includes the following embodiments: Embodiment 1: An intelligent solid-liquid separation device based on a stepper motor driving a filter cloth to move, comprising a frame 1 and a guide rail 11 on the frame 1; a plurality of mounting plates 2 are movably connected to the guide rail 11; a filter press plate 3 is fixedly connected to the mounting plate 2; adjacent mounting plates 2 are connected by a chain, and the mounting plate 2 on the far right is connected to the output shaft of the first motor by a pull rope; filter press grooves 31 are arranged on both sides of the filter press plate 3; the filter press grooves 31 on two adjacent filter press plates 3 are close to each other to form a filter press cavity; a diaphragm 34 connected by a liquid inlet pipe 33 is arranged at the bottom of the filter press groove 31 on the left side of the filter press plate 3; The bottom of the filter press tank 31 is fixedly connected to the mesh plate 36 through a support block 35; the space of the filter press tank 31 on the left side of the mesh plate 36 is downwardly connected to the drain pipe 37; the front and rear sides of the filter press plate 3 are connected to the storage shell 4; the storage shell 4 is connected to the rotating rod 5 by rotating up and down; the rotating rod 5 at the rear position is rotationally connected to the storage shell 4 through a coil spring (not shown in the figure); the rotating rod 5 at the front position rotates during the unfolding process of the filter press plate 3; filter cloth 6 is provided on the left and right sides of the filter press plate 3; the end of the filter cloth 6 passes through the storage groove 41 on the storage shell 4 and is connected to the outer wall of the rotating rod 5; the front and rear positions of the notch of the filter press tank 31 are provided with avoidance grooves 38 for the filter cloth 6 to move.

[0023] A pushing assembly (not shown in the figure) is provided at the right end of the frame 1. Under the push of the pushing assembly, multiple filter press plates 3 are folded together toward the left, and feed holes for feeding materials through the feed pipe are provided at the upper positions on both sides of the filter press plates 3; after multiple filter press plates 3 are folded toward the left, the feed pipe will also be folded in the feed holes between adjacent filter press plates 3, and the outer wall of the feed pipe and the inner wall of the feed hole are sealed to prevent leakage. After adjacent filter press plates 3 are close to each other, the filter press grooves 31 on the sides of two adjacent filter press plates 3 that are close to each other are combined to form a filter press chamber, and then the feed pipe is controlled to feed, and the material enters the filter press chamber along the feed pipe. The feed position of the feed pipe is located between the two filter cloths 6 in the filter press chamber. In the interlayer position between them, as the liquid-containing material enters, the material will stretch the filter cloth 6, and the rotating rod 5 at the front position cannot rotate after multiple away plates are folded. In this way, the rotating rod 5 at the rear position will overcome the coil spring and rotate during the stretching of the filter cloth 6. The rotating rod 5 at the rear position will cause the filter cloth 6 to unfold outward during the rotation of the rotating rod 5 in the rear storage shell 4. The filter cloth 6 in the rear storage shell 4 will move outward along the storage groove 41, and the filter cloth 6 moved out of the storage groove 41 will enter the filter press chamber along the avoidance groove 38. The specifications of the avoidance groove 38 are adapted to the cross-section of the filter cloth 6, so that the filter cloth 6 can be sealed and moved in the avoidance groove 38 without causing material leakage.

[0024] The left filter cloth 6 of the material in the filter press chamber will be pressed close to and attached to the corresponding mesh plate 36, and the right filter cloth 6 of the material in the filter press chamber will be pressed close to and attached to the surface of the diaphragm 34, so that the space in the filter press chamber is expanded to the maximum state. After the liquid-containing material enters the filter press chamber, the feed pipe is controlled to stop feeding. Specifically, a valve can be set on the feed pipe to realize opening and closing, and then the liquid inlet pipe 33 is controlled to feed liquid. Under the action of the pump, the liquid enters the inner side of the diaphragm 34 along the liquid inlet pipe 33. The inner side of the diaphragm 34 will bulge outward during the pressure process. The bulging diaphragm 34 will squeeze the material in the filter press chamber through the filter cloth 6. The liquid contained in the material in the filter press chamber will flow out through the holes on the filter cloth 6 and the mesh plate 36 after being pressed. The filtered liquid is finally discharged and collected along the drain pipe 37, completing the filter press process of the material in the filter press chamber. After the filter press is completed, the pump is controlled to extract the liquid inside the diaphragm 34, and the liquid inside the diaphragm 34 will be extracted along the liquid inlet pipe 33. Subsequently, the first motor (not shown in the figure) is controlled to work. The first motor is a stepper motor. During the operation of the first motor, the output shaft will be driven to rotate. The rotation of the output shaft of the first motor will reel in the pull rope (not shown in the figure) and cooperate with the chain (not shown in the figure) between the adjacent mounting plates 2, so that multiple folded mounting plates 2 are pulled apart, and the adjacent filter press plates 3 are pulled apart, so that multiple filter press plates 3 are unfolded. After the multiple filter press plates 3 are unfolded, the filter cloth 6 in the filter press cavity will be exposed, and the coil spring will drive the rear rotating rod 5 to rotate, so that the filter cloth 6 on the left and right sides of the filter press plate 3 is tightened. The tightened filter cloth 6 will cause the large pieces of filter cake attached to the filter cloth 6 to fall off, and the filter cake is collected after falling, and the filter cloth 6 is pressed. After the large pieces of filter cake on the filter cloth 6 on both sides of the filter plate 3 fall off, there will still be residual waste attached to it. Therefore, during the process of separating and unfolding the multiple filter press plates 3, the upper end of the rotating rod 5 on the front side of the filter press plate 3 is driven, and the rotating rod 5 at the front position rotates, which drives the front end of the filter cloth 6 to be tightened. During the rotation of the rotating rod 5 at the front position, it is necessary to overcome the winding force of the winding spring on the rotating rod 5 at the rear position. The filter cloth 6 on the left and right sides of the filter press plate 3 will enter the storage shell 4 at the front position along the avoidance groove 38 and the storage groove 41. The storage groove 41 is adapted to the cross-section of the filter cloth 6, so that the waste attached to the filter cloth 6 will be pulled off, so that the filter cloth 6 rolled up in the storage shell 4 remains clean. It should be noted that the last filter press plate 3 to be pulled and unfolded also needs to be moved to a certain distance so that all the filter press plates 3 will be unfolded after moving to the right. The rotating rod 5 at the front position can be driven by an independent second motor (not shown in the figure), or other driving methods can be used. The rotation of the rotating rod 5 at the front position will cause the filter cloth 6 on the left and right sides of the filter press plate 3 to roll forward, and the filter cloth 6 in the storage shell 4 at the rear position will be unfolded as the rotating rod 5 in the storage shell 4 at the front position rotates. After the waste material on the filter cloth 6 is processed, the multiple filter press plates 3 are controlled to be folded together to the left again, and the above action is repeated to perform the next filtration to achieve solid-liquid separation of the material. In the present invention, filter cloths 6 that can move are padded on both sides of the material in the pressure filtration cavity, so that the material will not directly contact the expanded diaphragm 34 during the pressure filtration process, ensuring the cleanliness of the diaphragm 34 and at the same time reducing the difficulty of discharging the filter cake. In addition, the filter cake is discharged by winding the filter cloth 6 into the storage shell 4. Compared with the existing method, the discharge thoroughness of the filter cake on the filter cloth 6 is improved. The more thorough the treatment of the filter cake on the filter cloth 6, the smaller the impact on the next pressure filtration process, improving the separation effect and stability of the solid-liquid separation device.

[0025] Embodiment 2: The rack 1 is fixedly connected horizontally left and right with a rack 12; the upper end of the front rotating rod 5 is fixedly connected with a gear 52; the gear 52 meshes with the rack 12.

[0026] A plurality of notches 121 are arranged at intervals on the side of the rack 12 meshing with the gear 52; the meshing length of the gear 52 and the rack 12 for storing the filter cloth 6 on the left and right sides of the pressure filtration plate 3 is the transmission length; the transmission length is less than the distance between adjacent notches 121.

[0027] During the process of the plurality of pressure filtration plates 3 moving rightward and unfolding, the pressure filtration plates 3 will drive the storage shells 4 connected front and back to move rightward synchronously. The storage shells 4 will drive the rotatably connected rotating rods 5 to move rightward synchronously. During the rightward movement of the front rotating rod 5, the gear 52 will be engaged with the rack 12 for transmission. Each pressure filtration plate 3 will move rightward a sufficient distance to ensure that the corresponding gear 52 can rotate a certain number of turns. During the rotation of the gear 52, the connected rotating rod 5 will be driven to rotate. During the rotation of the rotating rod 5, the front end of the filter cloth 6 will be wound up. During the winding-up process of the front end of the filter cloth 6, the front end of the filter cloth 6 will enter the storage shell 4 along the storage groove 41. The filter cake and other waste materials on the surface of the filter cloth 6 will be scraped off by the notch of the storage groove 41, so that the waste materials on the surface of the filter cloth 6 are processed; Since the filter cloth 6 is driven in the left-right direction, the waste materials on the filter cloth 6 can gather by themselves in the vertical direction, making the waste materials easier to fall off. After the waste materials on the filter cloth 6 are processed, control the plurality of pressure filtration plates 3 to converge and fold leftward. During the leftward movement of the plurality of pressure filtration plates 3, the rotating rod 5 will rotate in the reverse direction. The rear rotating rod 5 will give a pulling force to the rear end of the filter cloth 6 under the action of the torsion spring. During the reverse rotation of the front rotating rod 5, the filter cloth 6 in the front storage shell 4 will start to unwind, causing the filter cloth 6 on the left and right sides of the pressure filtration plate 3 to move backward, realizing the reset after the filter cloth 6 is cleaned; In this embodiment, the upper ends of a plurality of front rotating rods 5 are connected to the rack 12 through gears 52, so that the front rotating rods 5 can remain stationary during the pressure filtration process and rotate during the unloading process to realize the treatment of the waste materials on the surface of the filter cloth 6. Compared with the existing method of using an independent second motor to drive the rotating rod 5, the driving cost is lower and it is more energy-saving; During the rightward movement and expansion of the plurality of filter press plates 3, the filter press plates 3 will drive the gear 52 to mesh with the rack 12, and the gear 52 will rotate in meshing transmission. The rotation of the gear 52 will drive the rotating rod 5 at the front position to rotate. During the rotation of the rotating rod 5, the filter cloth 6 on the left and right sides of the filter press plates 3 will be stored forward into the storage shell 4. When the movement distance of some gears 52 exceeds the transmission length, the gear 52 will pass through the notch 121, releasing the meshing of the gear 52 and the rack 12, so that the rotating rod 5 at the front position is not meshed with the gear 52 and the rack 12. The gear 52 is free to rotate downward, so that the coil spring drives the rotating rod 5 at the rear position to reel up, so that the filter cloth 6 on the left and right sides of the filter press plate 3 moves backward, and as the filter press plate 3 continues to move to the right, the gear 52 at the position of the notch 121 will move away again and mesh with the rack 12 again, so that the gear 52 drives the rotating rod 5 at the front position to rotate again, so that the filter cloth 6 on the left and right sides of the filter press plate 3 moves forward again. In this way, the filter cloth 6 on the left and right sides of the filter press plate 3 moves back and forth, so that the waste on the filter cloth 6 is easier to be thrown off, thereby improving the waste treatment effect on the filter cloth 6.

[0028] Embodiment 3: The storage shell 4 is rotatably connected to the rotating rod 5 through the rotating hole 42; the outer wall of the storage shell 4 is provided with a movable groove 43 which is connected to the inner wall of the rotating hole 42; the movable bar 7 is movably connected up and down in the movable groove 43; the outer wall of the rotating rod 5 is obliquely provided with an oblique ring groove 53; the oblique ring groove 53 is provided with an upper limit point and a lower limit point; the upper limit point is staggered with the lower limit point in the vertical direction; one end of the movable bar 7 is movably connected to the oblique ring groove 53, and the other end is fixedly connected to the vertical bar 71 downward; the vertical bar 71 is close to the notch of the storage groove 41 and is in contact with the filter cloth 6.

[0029] The movable groove 43 is located above the filter cloth 6 ; the movable bar 7 in the movable groove 43 moves above the filter cloth 6 .

[0030] The vertical bar 71 is fixedly connected to a plurality of shifting bars 72 in a position toward the filter cloth 6 ; the plurality of shifting bars 72 are evenly distributed along the length direction of the vertical bar 71 , and the length increases as it approaches the middle section of the vertical bar 71 .

[0031] When the gear 52 drives the rotating rod 5 at the front position to rotate, the rotating rod 5 will drive the oblique annular groove 53 on the outer wall to rotate. The oblique annular groove 53 has an upper limit point and a lower limit point of height difference, and is an annular groove in shape. In this way, one end of the movable bar 7 can move up and down along the movable groove 43 during the rotation of the oblique annular groove 53. By arranging the movable groove 43 above the filter cloth 6, the waste falling off the filter cloth 6 will not enter the movable groove 43 and cause blockage. In this way, the movable bar 7 in the movable groove 43 can move up and down stably. During the up and down movement of the movable bar 7, the vertical bar 71 will be driven to move back and forth up and down. The vertical bar 71 contacts the surface of the filter cloth 6 entering the storage groove 41, so that the waste on the surface of the filter cloth 6 is blocked by the vertical bar 71 at the notch of the storage groove 41 and is pulled down. As the vertical bar 71 moves up and down, the waste accumulated at the position of the storage groove 41 will be shaken off by the vertical bar 71, so as to avoid the accumulation of waste at the notch of the storage groove 41 affecting the storage of the filter cloth 6. When the unclamping piece 72 is in the air, the unclamping piece 72 is in the air, and the unclamping piece 72 is in the air, so that the unclamping piece 72 is in the air, and the unclamping piece 72 is in the air.

[0032] Embodiment 4: A circular groove 54 is provided inside the rotating rod 5; a rod groove 55 is provided through the inner wall of the circular groove 54 and the outer wall of the rotating rod 5; a circular hole 56 is provided through the circular groove 54 downward; a round rod 57 is movably connected in the circular hole 56; the front end of the filter cloth 6 passes through the rod groove 55 and is fixedly connected to the outer wall of the round rod 57; the top of the round rod 57 is fixedly connected to a block 58; a square groove 59 is provided on the upper inner wall of the circular groove 54.

[0033] In this embodiment, a first magnet 591 is embedded in the bottom of the square groove 59 ; a second magnet 581 is embedded in the upper surface of the block 58 ; the first magnet 591 and the second magnet 581 are magnetically attracted to each other.

[0034] When the filter cloth 6 is found to be damaged, the lower end of the round rod 57 is pulled downward. During the downward movement of the round rod 57, the block 58 is driven to disengage from the square groove 59, so that the round rod 57 is unlocked, and then the round rod 57 is rotated. During the rotation of the round rod 57, the front end of the filter cloth 6 is rolled up until the damaged position on the filter cloth 6 moves away from the left and right sides of the filter press plate 3. Then the round rod 57 is controlled to move upward along the circular hole 56. During the upward movement of the round rod 57, the block 58 is driven to be reinserted into the square groove 59. The block 58 is tightly matched with the square groove 59 to ensure the stability of the block 58 connected to the square groove 59. Furthermore, the first magnet 591 at the bottom of the square groove 59 and the second magnet 581 on the block 58 are magnetically attracted to each other, so that the block 58 is firmly adsorbed in the square groove 59, so that the round rod 57 will not move downward during the filtration process of the filter press plate 3, so that the solid-liquid separation device works more stably.

[0035] Embodiment 5: The front and rear outer walls of the filter press plate 3 are provided with replacement grooves 39; the replacement strip 8 is slidingly and sealably connected inside the replacement groove 39; the replacement strip 8 is fixedly connected to the outer wall of the storage shell 4; the replacement groove 39 and the replacement strip 8 are isosceles trapezoidal in shape; the lower surface of the filter press plate 3 is threadedly connected to a bolt 9; the lower end of the bolt 9 is in contact with the lower end of the replacement strip 8.

[0036] After the filter cloth 6 has been used for a period of time, the bolt 9 is loosened to unlock the replacement bar 8. After being unlocked, the replacement bar 8 can slide downward along the replacement groove 39, and the storage shell 4 will move downward with the downward movement of the replacement bar 8, so that the filter cloth 6 is moved out from the left and right sides of the filter press plate 3. After the new filter cloth 6 and the storage shell 4 are replaced as a whole, the replacement bar 8 is controlled to be re-inserted into the replacement groove 39, the bolt 9 is tightened, and the lower end of the bolt 9 is used to block and limit the lower end of the replacement bar 8 to achieve locking of the position of the storage shell 4.

[0037] In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate directions or positional relationships based on the attached Figure 3 The orientation or positional relationship shown is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, it cannot be understood as limiting the scope of protection of the present invention. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0038] The foregoing has shown and described the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments, and what is described in the above embodiments and the specification is only to illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. An intelligent solid-liquid separation device based on a stepping motor driving a filter cloth to move, comprising a frame and guide rails on the frame; a filter press plate with a mounting plate is movably connected to the guide rails; characterized in that: The filter press plate is provided with filter press grooves on both sides; a filter press cavity is formed when two adjacent filter press plates are close to each other; a diaphragm is provided at the bottom of the filter press groove on the left side of the filter press plate; the bottom of the filter press groove on the right side of the filter press plate is fixedly connected to the mesh plate through a support block; the filter press groove space on the left side of the mesh plate is connected to the drain pipe downward; the front and rear sides of the filter press plate are connected to the storage shell; the storage shell is connected to the rotating rod by rotating up and down; the rotating rod at the rear position is rotationally connected to the storage shell by a coil spring; the rotating rod at the front position rotates during the unfolding process of the filter press plate; filter cloths are provided on the left and right sides of the filter press plate; the end of the filter cloth passes through the storage groove on the storage shell and is connected to the outer wall of the rotating rod; avoidance grooves for the filter cloth to move are provided at the front and rear positions of the notch of the filter press groove.

2. The intelligent solid-liquid separation device based on a stepping motor-driven filter cloth walking according to claim 1, characterized in that: The frame is fixedly connected to the racks in the left and right sides; the upper end of the rotating rod at the front position is fixedly connected to the gear; and the gear meshes with the rack.

3. The intelligent solid-liquid separation device based on a stepping motor driving a filter cloth to travel according to claim 2, wherein: A plurality of notches are arranged at intervals on one side of the rack that meshes with the gear.

4. The intelligent solid-liquid separation device based on a stepping motor driving a filter cloth to move according to claim 2, wherein: The storage shell is rotatably connected to the rotating rod through a rotating hole; the outer wall of the storage shell is provided with a movable groove connected to the inner wall of the rotating hole; the movable groove is movably connected to a movable bar up and down; the outer wall of the rotating rod is obliquely provided with an oblique ring groove; one end of the movable bar is movably connected to the oblique ring groove, and the other end is fixedly connected to the vertical bar downward; the vertical bar is close to the notch of the storage groove and contacts with the filter cloth.

5. The intelligent solid-liquid separation device based on a stepping motor-driven filter cloth walking according to claim 4, wherein: The movable groove is located above the filter cloth; the movable strip in the movable groove moves above the filter cloth.

6. An intelligent solid-liquid separation device based on a stepping motor driving a filter cloth to move, as claimed in claim 4, wherein: The vertical bars are fixedly connected to a plurality of shifting bars in a position toward the filter cloth; the plurality of shifting bars are evenly distributed in the length direction of the vertical bars, and the lengths increase as they approach the middle section of the vertical bars.

7. The intelligent solid-liquid separation device based on a stepping motor driving a filter cloth to travel according to claim 2, wherein: A circular groove is arranged inside the rotating rod; a rod groove is arranged through the inner wall of the circular groove and the outer wall of the rotating rod; a circular hole is arranged through the circular groove downward; the circular hole is movably connected to the round rod; the front end of the filter cloth passes through the rod groove and is fixedly connected to the outer wall of the round rod; the top of the round rod is fixedly connected to a block; a square groove is arranged on the upper inner wall of the circular groove.

8. An intelligent solid-liquid separation device based on a stepping motor driving a filter cloth to travel according to claim 7, characterized in that: The bottom of the square groove is magnetically attracted to the upper surface of the block.

9. An intelligent solid-liquid separation device based on a stepping motor driving a filter cloth to move according to claim 1, characterized in that: The front and rear outer walls of the filter press plate are provided with replacement grooves; a replacement strip is slidably and sealedly connected in the replacement groove; the replacement strip is fixedly connected to the outer wall of the storage shell; a threaded bolt is connected to the lower surface of the filter press plate; and the lower end of the bolt contacts the lower end of the replacement strip.

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