An intelligent solid-liquid separation device based on a stepper motor driving the filter cloth

Abstract

The present invention relates to the field of solid-liquid separation technology, and specifically to an intelligent solid-liquid separation device based on a stepper motor driving the filter cloth to move; it comprises a frame and a guide rail on the frame; a plurality of mounting plates are movably connected to the guide rail; a filter press plate is fixedly connected to the mounting plate; adjacent mounting plates are connected by a chain, and the rightmost mounting plate is connected to the output shaft of the first motor by a pull rope; filter press tanks are provided on both sides of the filter press plate; 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 filtration 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 on the filter cloth is unloaded thoroughly, so that the separation effect and stability of the solid-liquid separation device are improved.

Description

Technical Field

[0001] The invention relates to the technical field of solid-liquid separation, in particular to an intelligent solid-liquid separation device based on a stepping motor driving a filter cloth to move. Background Art

[0002] In the food processing industry, solid-liquid separation of liquids is typically performed using vacuum drum filters, conventional plate and frame filter presses, and fully automatic intelligent solid-liquid separators. However, in actual operation, vacuum drum filters have high operating costs, and conventional plate and frame filter presses have a low degree of automation. In contrast, fully automatic intelligent solid-liquid separators offer a high degree of automation, requiring virtually no human intervention in the solid-liquid separation process. Furthermore, their operating costs are lower than those of vacuum drum filters, making them ideal intelligent solid-liquid separation equipment.

[0003] At present, the working principle of the intelligent solid-liquid separation device is to first let the material enter the filter press chamber along the feed pipe, and then the diaphragm in the filter press chamber 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 the squeezing, and the solid part of the material is intercepted in the filter chamber to form a filter cake. Then, the multiple filter press plates are controlled to separate and unfold from each other, and the filter cloth is controlled to be driven up and down under the rotation of the transmission shaft, so that the junction between the filter cloth and the filter cake changes from a surface to a line, thereby realizing the separation of the filter cloth and the filter cake. For example, our previous application with the publication number CN118831359A and the patent subject name of the digital intelligent acid and alkali resistant special film high-dry solid-liquid separation filter press system adopts this principle.

[0004] Although the above technology can improve the separation effect of filter cakes, it still has the following defects that have not been solved: a) In order to ensure that the material in the filter press chamber is squeezed by the diaphragm, only one side of the material in the filter press chamber is in contact with the filter cloth. Therefore, after multiple filter press plates are unfolded, some material is attached to the diaphragm, making it difficult to handle the material on the diaphragm; b) Although the junction between the filter cake and the filter cloth has been improved from a surface to a line, it still does not circumvent the nature of the filter cake on the filter cloth being unloaded by gravity, which makes it difficult to handle some stubborn filter cakes. Summary of the Invention

[0005] In order to make up for the shortcomings of the existing technology, the present invention proposes an intelligent solid-liquid separation device based on a stepper motor to drive the filter cloth to move. 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 thoroughness of unloading the filter cake on the filter cloth is improved. The more thoroughly the filter cake on the filter cloth is processed, the smaller the impact on the next filter press process is, so that the separation effect and stability of the solid-liquid separation device are improved.

[0006] The technical solution adopted by the present invention to solve its technical problems is as follows: the intelligent solid-liquid separation device based on a stepper motor driving the filter cloth to move comprises a frame and a guide rail on the frame; a plurality of mounting plates are movably connected to the guide rail; a filter press plate is fixedly connected to the mounting plate; adjacent mounting plates are connected by a chain, and the mounting plate on the far right is connected to the output shaft of the first motor by a pull rope; filter press tanks are provided on both sides of the filter press plate; a filter press cavity is formed when two adjacent filter press plates are close to each other; a liquid inlet is provided at the bottom of the filter press tank on the left side of the filter press plate The filter press is connected to the filter press by a pipe; the bottom of the filter press tank on the right side of the filter press plate is fixedly connected to the mesh plate through a support block; the filter press tank space on the left side of the mesh plate is downwardly connected to the drain pipe; 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 when it rotates up and down; the rotating rod at the rear position is connected to the storage shell by a coil spring; the rotating rod at the front position rotates during the unfolding 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 slot 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 filter press tank notch.

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

[0008] Preferably, a plurality of gaps are provided at intervals on one side where the rack meshes with the gear; the meshing length of the rack and gear that accommodates the filter cloths on the left and right sides of the filter press plate is the transmission length; and the transmission length is less than the spacing between adjacent gaps.

[0009] Preferably, 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 bar is movably connected up and down in the movable groove; the outer wall of the rotating rod is obliquely provided with an oblique ring groove; the upper limit point and the lower limit point are provided in the oblique ring groove; the upper limit point and the lower limit point are staggered in the vertical direction; 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 is in contact with the filter cloth.

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

[0011] Preferably, the vertical bar is fixedly connected to a plurality of shifting bars at a position toward the filter cloth; the plurality of shifting bars are evenly distributed along the length direction of the vertical bar, and the length increases as it approaches the middle section of the vertical bar.

[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 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 the square; 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 bar is connected to the replacement groove in a sliding seal; the replacement bar is fixedly connected to the outer wall of the storage shell; the replacement groove and the replacement bar are in the shape of an isosceles trapezoid; 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 bar.

[0015] The beneficial effects of the present invention are as follows:

[0016] 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, 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 the storage shell. Compared with the existing method, the filter cake on the filter cloth is unloaded more thoroughly. 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.

[0017] 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 movement distance of some gears exceeds the transmission length, the gear will pass through the gap, releasing the engagement between the gear and the rack, and the gear from the gap position will move away again and engage with the rack again, so that the gear drives the rotating rod at the front position to rotate again, thereby causing the filter cloths on the left and right sides of the filter press plates to 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 cloth to be thrown off, thereby improving the waste material treatment effect on the filter cloth.

[0018] 3. The shifting bars near the ends of the vertical bars of the present invention move the filter cloth later than the shifting bars near the middle of the vertical bars. In this way, when wrinkles appear on the filter cloth, the shifting bars 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

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0020] Figure 1 It is a three-dimensional diagram of the original solid-liquid separation device;

[0021] Figure 2 yes Figure 1 A three-dimensional diagram of a single filter press plate;

[0022] Figure 3 It is a perspective view of the present invention;

[0023] Figure 4 yes Figure 3 Enlarged view of point A in the middle;

[0024] Figure 5 yes Figure 3 Enlarged view of point B in the middle;

[0025] Figure 6 It is a three-dimensional diagram of the mounting plate and the filter press plate in the present invention;

[0026] Figure 7 yes Figure 6 A three-dimensional image from another angle;

[0027] Figure 8 yes Figure 7 Enlarged view of point C in the middle;

[0028] Figure 9 yes Figure 7 Enlarged view of point D in the middle;

[0029] Figure 10 It is a three-dimensional diagram of the support block and the screen plate in the present invention;

[0030] Figure 11 It is a cross-sectional view of the front and rear sides of the filter plate of the present invention;

[0031] Figure 12 This is a cross-sectional view of the filter plate and the receiving shell in a top-down state of the present invention;

[0032] Figure 13 It is a cross-sectional schematic diagram of the round rod in the present invention.

[0033] In the figure: frame 1, guide rail 11, rack 12, notch 121, mounting plate 2, filter press plate 3, filter press 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, rotating hole 42, movable groove 43, rotating rod 5, gear 52, oblique ring groove 53, circular groove 54, rod groove 55, circular hole 56, round rod 57, square 58, second magnet 581, square groove 59, first magnet 591, filter cloth 6, movable bar 7, vertical bar 71, dial bar 72, replacement bar 8, bolt 9. DETAILED DESCRIPTION

[0034] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0035] like Figures 1 to 13 As shown, the present invention includes the following embodiments:

[0036] Example 1: An intelligent solid-liquid separation device based on a stepper motor driving a filter cloth, 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 provided 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 provided 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 when it rotates 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 movement of the filter cloth 6.

[0037] 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. Feed holes for feeding 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 into the feed holes between adjacent filter press plates 3. 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. Subsequently, the feed of the feed pipe is controlled, 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 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 in the process of the filter cloth 6 being stretched. The rotating rod 5 at the rear position will cause the filter cloth 6 to unfold outward during the rotation process in the storage shell 4 at the rear position. The filter cloth 6 in the storage shell 4 at the rear position 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.

[0038] The left filter cloth 6 of the material in the filter press chamber is pressurized to be close to and attached to the corresponding mesh plate 36, and the right filter cloth 6 of the material in the filter press chamber is pressurized to be 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. 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 bulges outwards during the pressure process. The bulging diaphragm 34 squeezes the material in the filter press chamber through the filter cloth 6. The liquid contained in the material in the filter press chamber is pressurized and flows out through the holes in the filter cloth 6 and the mesh plate 36. The filtered liquid is finally discharged and collected along the drain pipe 37, completing the filtration process of the material in the filter press chamber. After the filtration is completed, the pump is controlled to extract the liquid inside the diaphragm 34, and the liquid inside the diaphragm 34 is extracted along the liquid inlet pipe 33.

[0039] Then 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 to pull apart the multiple stacked mounting plates 2 and the adjacent filter press plates 3. The multiple filter press plates 3 are pulled apart, and the 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 will be tightened. The tightened filter cloth 6 will cause the large pieces of filter cake attached to the filter cloth 6 to fall off. The filter cake is collected after falling, and the filter cloth is pressed. After the large pieces of filter cake on the filter cloth 6 on both sides of the filter plate 3 fall off, waste materials will still remain attached. 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 rotation of the rotating rod 5 at the front position will drive 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 materials 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.

[0040] 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 cloths 6 on the left and right sides of the filter press plate 3 to be rolled 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 for the next filtration to achieve solid-liquid separation of the material.

[0041] The present invention provides movable filter cloths 6 on both sides of the material in the filter press chamber, so that the material will not directly contact the expanded diaphragm 34 during the filter press process, ensuring the cleanliness of the diaphragm 34 and reducing the difficulty of unloading the filter cake; in addition, the filter cake is unloaded by rolling the filter cloth 6 in the storage shell 4. Compared with the existing method, the filter cake on the filter cloth 6 is unloaded more thoroughly. The more thoroughly the filter cake on the filter cloth 6 is treated, the smaller the impact on the next filter press process is, so that the separation effect and stability of the solid-liquid separation device are improved.

[0042] Example 2: The frame 1 is fixedly connected to the rack 12 in the left and right horizontal directions; the upper end of the rotating rod 5 at the front position is fixedly connected to the gear 52; the gear 52 engages with the rack 12.

[0043] A plurality of notches 121 are provided at intervals on one side where the rack 12 meshes with the gear 52 ; the meshing length of the gear 52 and the rack 12 for receiving the filter cloths 6 on the left and right sides of the filter press plate 3 is the transmission length; the transmission length is less than the spacing between adjacent notches 121 .

[0044] During the rightward movement and expansion of the plurality of filter press plates 3, the filter press plates 3 will drive the storage shells 4 connected to the front and rear sides to move right synchronously, and the storage shells 4 will drive the rotating rods 5 connected to the same to move right synchronously. During the rightward movement of the rotating rods 5 at the front position, the gears 52 and the racks 12 will be driven to mesh with each other. Each filter press plate 3 will move right by a sufficient distance to ensure that the corresponding gears 52 can rotate to a certain number of circles. During the rotation of the gears 52, the connected rotating rods 5 will be driven to rotate. During the rotation of the rotating rods 5, the front end of the filter cloth 6 will be wound up. During the winding 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, and the waste such as the filter cake on the surface of the filter cloth 6 will be pulled down by the notch of the storage groove 41, so that the waste on the surface of the filter cloth 6 can be processed.

[0045] Since the filter cloth 6 is driven in the left and right directions, the waste on the filter cloth 6 can gather in the vertical direction by itself, making it easier for the waste to fall off. After the waste on the filter cloth 6 is processed, the multiple filter press plates 3 are controlled to converge and fold to the left. During the left movement of the multiple filter press plates 3, the rotating rod 5 will rotate in the opposite direction. The rotating rod 5 at the rear position will apply a pulling force to the rear end of the filter cloth 6 under the action of the coil spring. During the reverse rotation of the rotating rod 5 at the front position, the filter cloth 6 in the storage shell 4 at the front position will start to unwind, causing the filter cloths 6 on the left and right sides of the filter press plate 3 to move backward, thereby realizing the reset of the filter cloth 6 after cleaning.

[0046] In this embodiment, the upper ends of the plurality of rotating rods 5 at the front position are connected to the rack 12 through the gear 52, so that the rotating rods 5 at the front position can remain stationary during the filtration process and rotate during the unloading process, thereby achieving the treatment of waste material on the surface of the filter cloth 6. Compared with the existing method of using an independent second motor to drive the rotating rods 5, the driving cost is lower and more energy-saving;

[0047] 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 at the notch 121 is moved away from the gear 52 at the front and engages with the rack 12 again, so that the gear 52 drives the rotating rod 5 at the front 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, making it easier for the waste on the filter cloth 6 to be thrown off, thereby improving the waste treatment effect on the filter cloth 6.

[0048] Example 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 and the lower limit point are staggered 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.

[0049] 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 .

[0050] The vertical bar 71 is fixedly connected to a plurality of shifting bars 72 in the direction toward the filter cloth 6 ; the plurality of shifting bars 72 are evenly distributed along the length direction of the vertical bar 71 , and their length increases as they approach the middle section of the vertical bar 71 .

[0051] When the gear 52 drives the rotating rod 5 at the front position to rotate, the rotating rod 5 will drive the oblique ring groove 53 on the outer wall to rotate. The oblique ring groove 53 has an upper limit point and a lower limit point of height difference, and is an annular groove in shape, so that one end of the movable bar 7 can move up and down along the movable groove 43 during the rotation of the oblique ring groove 53, and 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, so that 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 move up and down, and the vertical bar 71 will contact the surface of the filter cloth 6 entering the receiving 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 receiving groove 41 and is pulled down. As the vertical bar 71 moves up and down, the waste accumulated at the position of the receiving groove 41 will be shaken off by the vertical bar 71, avoiding the waste accumulation at the notch of the receiving groove 41 affecting the storage of the filter cloth 6;

[0052] The cam 72 of the drawer 42 is moved upwards and downwards to allow the filter cloth 6 to be removed from the drawer 42. The cam 72 of the drawer 42 is moved upwards and downwards to allow the filter cloth 6 to be removed from the drawer 42.

[0053] Example 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 facing 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 the block 58; a square groove 59 is provided on the upper inner wall of the circular groove 54.

[0054] 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.

[0055] 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. 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. Further, the first magnet 591 at the bottom of the square groove 59 and the second magnet 581 on the block 58 are magnetically attracted, 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, making the solid-liquid separation device work more stably.

[0056] Example 5: The front and rear outer walls of the filter press plate 3 are provided with replacement grooves 39; the replacement bar 8 is slidingly and sealably connected to the replacement groove 39; the replacement bar 8 is fixedly connected to the outer wall of the storage shell 4; the replacement groove 39 and the replacement bar 8 are in the shape of an isosceles trapezoid; 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 bar 8.

[0057] 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 out 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 replacement of the new filter cloth 6 and the storage shell 4 is completed, the replacement bar 8 is controlled to be re-engaged in the replacement groove 39, and the bolt 9 is tightened. 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.

[0058] 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.

[0059] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the foregoing embodiments. The foregoing embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. An intelligent solid-liquid separation device based on a stepper motor driving a filter cloth, comprising a frame and a guide rail on the frame; a filter press plate with a mounting plate movably connected to the guide rail; characterized in that: The filter press plates are provided with filter press grooves on both sides; a filter press chamber 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 by a support block; the filter press groove space on the left side of the mesh plate is downwardly connected to the drain pipe; the front and rear sides of the filter press plates 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 rotatably connected to the storage shell by a coil spring; the rotating rod at the front position rotates during the expansion of the filter press plates; filter cloths are provided on the left and right sides of the filter press plates; 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; The frame is fixedly connected to the racks in the left and right transverse directions; the upper end of the rotating rod at the front position is fixedly connected to the gear; the gear is meshed with the rack, and a plurality of gaps are arranged at intervals on one side of the rack meshing with the gear.

2. The intelligent solid-liquid separation device based on a stepper motor driving the filter cloth according to claim 1, characterized in that: 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 that is connected to the inner wall of the rotating hole; the movable bar is movably connected up and down in the movable groove; 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 is in contact with the filter cloth.

3. The intelligent solid-liquid separation device based on a stepper motor driving the filter cloth according to claim 2, characterized in that: The movable groove is located above the filter cloth; the movable bar in the movable groove moves above the filter cloth.

4. The intelligent solid-liquid separation device based on a stepper motor driving the filter cloth according to claim 2, characterized in that: 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.

5. The intelligent solid-liquid separation device based on a stepper motor driving the filter cloth according to claim 1, characterized in that: 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 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 provided on the upper inner wall of the circular groove.

6. The intelligent solid-liquid separation device based on a stepper motor driving the filter cloth according to claim 5, characterized in that: The bottom of the square groove is magnetically attracted to the upper surface of the block.

7. The intelligent solid-liquid separation device based on a stepper motor driving the filter cloth according to claim 1, characterized in that: The front and rear outer walls of the filter press plate are provided with a replacement groove; a replacement bar is slidingly and sealedly connected in the replacement groove; the replacement bar 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; the lower end of the bolt contacts the lower end of the replacement bar.

Images