A mobile filter cake crushing device and a plate-and-frame filter

Abstract

The application provides a mobile filter cake crushing device and a plate-and-frame filter press, wherein the mobile filter cake crushing device comprises a mobile vibration and positioning integrated mechanism, a filter cake crusher, a guide rail, a vibration rod, a homing contactor and a return contactor; the mobile vibration and positioning integrated mechanism moves along the guide rail with the filter cake crusher under the traction of an electric traction mechanism. When discharging is completed, the mobile vibration and positioning integrated mechanism moves along the guide rail with the filter cake crusher under the traction of an electric driving mechanism, is automatically positioned at the lower part of the discharging filter plate, and vibrates and crushes the large filter cake. The application solves the problem of how to crush large filter cake to prevent them from forming an arch in the hopper below the plate-and-frame filter press.

Description

Technical Field

[0001] This invention relates to the technical field of environmental sludge treatment, and in particular to a mobile filter cake crushing device and its plate and frame filter press. Background Technology

[0002] The final disposal of sludge generally adopts two measures: one is harmless landfill treatment; the other is incineration treatment. Landfill disposal is gradually decreasing due to limitations of landfill space and potential pollution to groundwater. Incineration treatment is the most significant in reducing sludge volume and is also a harmless process, but if the moisture content is too high, energy consumption is too high, and the cost is high. Regardless of whether sludge is landfilled or incinerated, sludge reduction is a problem faced by all wastewater treatment plants. The first step in sludge reduction is to separate the water from the sludge using dewatering equipment, controlling it to a low level as much as possible. The lower the moisture content of the sludge, the lower the final treatment cost. Plate and frame filter presses, or high-pressure diaphragm plate and frame presses, are the best among all dewatering equipment, capable of controlling the moisture content of organic sludge to below 70% and inorganic sludge to below 50%. In the field of wastewater treatment, it is the main sludge dewatering equipment. To shorten the pressing and dewatering time and reduce the moisture content of the filter cake after pressing, an appropriate amount of polymeric flocculant needs to be added for conditioning before the sludge enters the press. This allows the interstitial water in the sludge to be released. Therefore, most of the filter cake after pressing has a certain degree of stickiness and is not easily broken. Furthermore, although plate and frame filter presses can achieve a lower moisture content in the filter cake after pressing than other dewatering equipment, and the feeding, pressing, plate pulling, and unloading processes can be completed automatically, they cannot perform continuous feeding and pressing. After the sludge is pressed, the filter cake needs to be unloaded one plate and frame after another into the hopper below, and then sent to subsequent equipment for deep dewatering and drying via a screw conveyor. Highly viscous filter cakes are difficult to break when they fall into the hopper below. Although a grid crushing bar is installed in the hopper, it is fixed and tends to form an arch in the hopper, preventing it from falling to the bottom screw conveyor. As a result, the filter cake cannot be sent from the hopper to the drying equipment for deep drying. Operators often need to patrol the equipment. Once filter cake arching occurs, operators have to manually break the arch, usually by poking the arched filter cake with a long stick. Obviously, this not only requires more operators and increases labor intensity, but also affects the automatic operation of the plate and frame filter press dewatering and drying process, resulting in low processing efficiency of the filter press.

[0003] Therefore, how to break up large filter cake pieces to prevent them from forming arches in the hopper below the plate and frame filter press has become a technical problem that needs to be solved. Summary of the Invention

[0004] The purpose of this invention is to provide a mobile filter cake crushing device and a plate and frame filter press, which mainly solves the problem in the prior art of how to crush large filter cakes and prevent them from forming arches in the hopper below the plate and frame filter press.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is: a mobile filter cake crushing device, characterized in that: the mobile filter cake crushing device includes a mobile vibrating and positioning integrated mechanism, a filter cake crusher, a guide rail, a vibrating rod, a return contactor and a return contactor, and the mobile vibrating and positioning integrated mechanism moves along the guide rail with the filter cake crusher under the traction of an electric traction mechanism.

[0006] Furthermore, the integrated mobile vibration positioning mechanism includes a slider, a pair of lifting guide rods disposed on the top surface of the slider, a piston-type lifting device, and an adjustable-height mounting rod. A roller slide block is provided at the top inside the slider; a through-beam photoelectric switch is provided on the adjustable-height mounting rod.

[0007] Furthermore, the piston-type lifter is installed on the inner middle side of the top surface of the slider;

[0008] The top of each end of the slider is provided with a top plate and a pressure plate. Each top plate and pressure plate defines a roller slide on the guide rail. The lower edge of the top plate and the lower edge of the pressure plate are both higher than the top surface of the guide rail.

[0009] A fixing plate is fixed at the top of each end of the slider. Each fixing plate is connected to a pressure plate and a cleaning plate by connecting bolts. The cleaning plate is located inside the pressure plate, and the lower edge of the cleaning plate is in contact with the top surface of the guide rail.

[0010] Each slider top plate, cleaning plate, and pressure plate has corresponding holes for mounting the roller slide block support; the slide block support has two circular slide block pins at the front and back, which are respectively inserted into the holes of the top plate, cleaning plate, and pressure plate.

[0011] The bottom of each end of the slider is fixed to a pair of inverted T-shaped stabilizers with fixing screws. The vertical plate of the inverted T-shaped stabilizer is inserted into the opening groove of the guide rail. The inverted T-shaped stabilizer is connected to the electric traction mechanism.

[0012] Furthermore, the roller slide block includes a rectangular slide block bracket, four slide block feet, rollers, roller shafts, and retaining rings at both ends of the rollers; a through hole larger than the diameter of the roller shaft is opened in the axial direction of the rollers, and after the roller shaft passes through the through hole of the roller shaft, the retaining ring is fixed on the retaining ring groove of the roller shaft to restrict the displacement of the roller shaft axis, while allowing the rollers to roll freely on the roller shaft;

[0013] The middle part of the roller is a polished optical shaft, and there are retaining ring grooves at both ends for fixing retaining rings. The inner spacing of the retaining ring grooves is greater than the length of the roller. The diameter at both ends of the roller is smaller than the diameter in the middle part of the roller. The places where the diameter changes at the ends and the middle of the roller are variable shaft diameter positions. The distance between the two variable shaft diameter positions is less than the inner width of the roller pulley bracket. The total length of the roller must be less than the horizontal distance between the inner sides of the slider.

[0014] Furthermore, the filter cake crusher includes four L-shaped support frames, two top rods, two blade ribs, and several blades;

[0015] Four L-shaped support frames are arranged symmetrically in pairs on the left and right, and parallel in pairs in front and behind, forming two sets of left L-shaped support frames and right L-shaped support frames. The two ends of a blade rib are connected to one end of the corresponding left L-shaped support frame and one end of the corresponding right L-shaped support frame, forming a concave shape.

[0016] The other end of the L-shaped support frame extends outwards, and a top rod is provided between the other ends of the two L-shaped support frames on the left and between the other ends of the two L-shaped support frames on the right.

[0017] Several blades are mounted on the blade support plate, with the cutting edges of the blades facing upwards.

[0018] Furthermore, the filter cake crusher is fitted into the lifting guide rods of the two-sided moving vibrating positioning integrated mechanism. The two L-shaped support rods on the same side are located on the outside of the pair of lifting guide rods on the same side, and the top rods on the left and right sides are located on the inside of the pair of lifting guide rods on the same side.

[0019] The piston rod of the piston-type jack on the same side corresponds to the top rod on the same side.

[0020] A plate and frame filter press with a mobile filter cake crushing device, the plate and frame filter press includes a plate and frame and a liquid collection flap, characterized in that: the plate and frame filter press also includes the aforementioned mobile filter cake crushing device, the filter cake crusher is mounted on vibrating rods on both sides of the plate and frame filter press and is located between the bottom of the plate and frame filter press and the liquid collection flap;

[0021] A pair of mobile vibrating and positioning integrated mechanisms are symmetrically installed on the guide rails on both sides of the plate and frame filter press. The guide rails are open square tubes, and a corresponding vibrating rod is set on the inner side of each guide rail, ensuring that the highest point is lower than the top surface of the vibrating rod when the piston-type lifting device is reset.

[0022] When the plate and frame filter press is unloading, the integrated vibration and positioning mechanism is moved back and forth on the guide rail by a chain driven by a motor and connected to an inverted T-shaped stabilizer.

[0023] A return contactor is provided at one end of the guide rail, and a return contactor is provided at the other end of the guide rail. The mobile vibrating and positioning integrated mechanism moves along the guide rail with the filter cake crusher between the return contactor and the return contactor under the traction of the electric traction mechanism. The filter cake crusher collides with the vibrating rod under the action of the mobile vibrating and positioning integrated mechanism.

[0024] Furthermore, the positioning of the integrated mobile rapping and positioning mechanism is controlled by a set of through-beam photoelectric switches installed on it through the automatic control system of the plate and frame filter press. The transmitter and receiver of one set of through-beam photoelectric switches are respectively installed on the adjustable height mounting rods of the integrated mobile rapping and positioning mechanism on both sides. The installation position of the through-beam photoelectric switches should be higher than the lowest point of the plate and frame, and ensure that when they are moved near the plate and frame, they can completely block the emitted beam so that the receiver on the other side cannot receive the light signal. The through-beam photoelectric switches are located at the front end of the slider when the unloading rapping is performed.

[0025] Furthermore, the rectangular slide block bracket of the roller slide block can install 1 to 5 standard rollers. The outer edge width of the slide block bracket is greater than the distance between the two variable shaft diameter positions in the roller by 1 to 3 mm. The thickness of the slide block bracket is less than the diameter of the roller by 10 to 20 mm, and the slide block bracket does not touch the upper surface of the guide rail.

[0026] Two circular sliding pins are fixed in the middle of the front and rear frames of the slide block bracket. The diameter of the sliding pins is smaller than the diameter of the holes on the baffle and pressure plate. The left and right frames of the slide block bracket have 1 to 5 open grooves. The bottom of the groove is semi-circular. The diameter of the groove is 1 to 2 mm larger than the end diameter of the roller and 3 to 5 mm smaller than the middle diameter of the roller. The center of the semi-circular bottom of the groove is lower than the middle of the thickness of the slide block bracket frame. After the roller slide block is assembled, the roller with rollers is placed in the grooves of the left and right frames of the slide block bracket. Then, the whole assembly is installed into the top plate and pressure plate at both ends of the slider, ensuring that all rollers can contact both the inner top surface of the slider and the guide rail, so that the weight of the slider is directly transferred to the guide rail through the rollers, rather than to the roller and slide block bracket.

[0027] The roller slide assembly consists of 1 to 5 rollers mounted on an open groove (i.e., 1 to 5 symmetrically opened grooves on the left and right frames of the slide assembly support) via roller shafts. The front and rear slide assembly feet of the support then mount the slide block, ensuring that the rollers contact both the inner upper surface of the slide block and the upper surface of the guide rail. This allows the weight of the slide block to be directly transferred to the guide rail via the rollers. The number of rollers used varies depending on the size of the filter cake. Larger filter cakes require heavier cakes, necessitating more rollers to ensure smooth movement of the slide block on the guide rail. For filter cakes smaller than 600mm, a single-roller assembly is recommended; for 800-1000mm, a two-roller assembly is sufficient; for 1250-1500mm, a three-roller assembly is suitable; and for 1600-2000mm, a five-roller assembly is appropriate.

[0028] By removing the end pressure plate connecting bolt 213 (i.e. the connecting bolt between the fixing plate 210 and the pressure plate 211), the roller slide block can be freely moved out of the slider to replace worn parts.

[0029] Furthermore, the compressed air inlet at the bottom of the piston-type lifter of the integrated moving vibration and positioning mechanism on both sides is connected to the air outlet of the same two-position three-way solenoid valve via a pneumatic hose. The compressed air pushes the piston rod in the piston-type lifter to rise, thereby lifting the filter cake crusher.

[0030] In view of the above technical features, the present invention has the following advantages:

[0031] 1. The present invention relates to a plate and frame filter press with a mobile filter cake crushing device, which achieves the purpose of crushing large filter cakes through the combined action of vibration of the filter cake crusher and cutting of the blades on the crusher, and prevents large filter cakes from forming arches in the hopper below the plate and frame filter press.

[0032] 2. The mobile filter cake crushing device of the plate and frame filter press of the present invention is mainly realized by a three-in-one mechanism integrating movement, positioning and lifting - a mobile vibrating positioning integrated mechanism in conjunction with the filter cake crusher.

[0033] 3. The mobile filter cake crushing device of the present invention automatically positions the relative position of the unloading filter plate by sensing whether the light emitted by the transmitter of the through-beam photoelectric switch is blocked by the filter plate.

[0034] 4. A plate and frame filter press of the present invention adds a filter cake crushing device, which is installed between the bottom of the plate and frame (i.e., the filter press body) and the lower hopper. Before the filter cake falls into the hopper, it is crushed into small pieces of filter cake by the filter cake crushing device. After falling into the lower hopper, the small pieces of filter cake slide onto the screw conveyor at the bottom of the hopper. This improves the automation level of the plate and frame filter press, that is, improves the sludge dewatering efficiency, reduces labor intensity, reduces the number of operators, and reduces sludge treatment costs.

[0035] 5. The integrated mobile vibratory positioning mechanism has a self-cleaning ability on the guide rail surface, ensuring that the integrated mobile vibratory positioning mechanism carries the filter cake crusher and moves back and forth smoothly on the guide rail.

[0036] 6. In the mobile vibratory positioning integrated mechanism of the mobile filter cake crushing device of the present invention, the roller slide is not fixed on the slider. Regular maintenance or replacement of the roller slide can be easily achieved by removing the pressure plate. Attached Figure Description

[0037] Figure 1 This is a schematic diagram (right view) of the integrated mobile vibration positioning mechanism in specific embodiment 1;

[0038] Figure 2 This is a structural schematic diagram (front view) of the integrated mobile vibration positioning mechanism in specific embodiment 1;

[0039] Figure 3 This is a schematic diagram (top view) of the integrated mobile vibration positioning mechanism in specific embodiment 1;

[0040] Figure 4 This is a schematic diagram (front view) of a filter cake crusher in specific embodiment 1;

[0041] Figure 5 This is a schematic diagram (right view) of a filter cake crusher in specific embodiment 1;

[0042] Figure 6 This is a schematic diagram (top view) of a filter cake crusher in specific embodiment 1;

[0043] Figure 7 This is a schematic diagram (side view) of the blade structure in specific embodiment 1;

[0044] Figure 8 This is a schematic diagram (front view) of the blade in specific embodiment 1;

[0045] Figure 9 This is a structural schematic diagram of a plate and frame filter press in a specific embodiment (the movable vibrating and positioning integrated mechanism is in its original position at the end of the hydraulic cylinder, and the liquid collection flap is flipped up).

[0046] Figure 10 This is a structural schematic diagram of a plate and frame filter press in a specific embodiment (the integrated moving vibratory positioning mechanism is located below the filter chamber end, where the crushed filter cake is received, and the liquid collection flap is flipped down).

[0047] Figure 11 yes Figure 10 Side view;

[0048] Figure 12 yes Figure 10 Sectional view of AA.

[0049] Figure 13 This is a top view of the roller slide block;

[0050] Figure 14 This is a front view of the roller slide block;

[0051] Figure 15 This is the left view of the roller slide block;

[0052] Figure 16 This is a diagram of a roller structure;

[0053] Figure 17 This is a diagram of the roller structure;

[0054] Figure 18 This is a diagram of the openings in the top plate of the sliding block.

[0055] Figure 19 This is a diagram of the pressure plate opening.

[0056] Figure 20 This is a diagram of the cleaning plate openings.

[0057] In the diagram: 1. Filter press body; 11. Plate and frame; 12. Plate and frame support; 13. Thrust plate; 14. Pressing plate; 15. Plate pulling trolley track; 16. Plate and frame plate pulling trolley; 17. Liquid collection flap; 18. Hopper; 19. Screw conveyor; 110. Pressing water pipe;

[0058] 2. Integrated mobile vibration positioning mechanism; 21. Slider; 22. Lifting guide rod; 23. Piston-type lifter; 24. Roller slide block; 25. Slide block top plate; 251. First eyelet; 26. Through-beam photoelectric switch; 27. Adjustable mounting rod; 28. Inverted T-shaped stabilizer; 29. ​​Fixing screw; 210. Fixing plate; 211. Pressure plate; 2111. Second eyelet; 212. Cleaning plate; 2121. Third eyelet; 213. Connecting bolt; 241. Slide block bracket; 242. Slide block pin; 243. Roller; 244. Roller shaft; 2441. Retaining ring groove; 2442. Variable shaft diameter position; 245. Roller retaining ring; 246. Groove;

[0059] 3. Filter cake crusher; 31. L-shaped support frame; 32. Top rod; 33. Blade rib; 34. Blade; 341. Notch;

[0060] 4. Guide rail;

[0061] 5. Vibrating rod;

[0062] 6. Return contactor;

[0063] 7. Return to contactor. Detailed Implementation

[0064] The present invention will be further described below with reference to specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of the invention. Furthermore, it should be understood that after reading the teachings of this invention, those skilled in the art can make various alterations or modifications to the invention, and these equivalent forms also fall within the scope defined by the appended claims.

[0065] See Figures 1 to 20 In specific embodiment 1, this embodiment 1 provides a plate and frame filter press 11 with a mobile filter cake crushing device, wherein the mobile filter cake crushing device includes a mobile vibrating and positioning integrated mechanism 2, a filter cake crusher 3, a guide rail 4, a vibrating rod 5, a return contactor 6 and a return contactor 7. The mobile vibrating and positioning integrated mechanism 2 moves along the guide rail 4 with the filter cake crusher 3 under the traction of the electric traction mechanism.

[0066] The integrated mobile vibratory positioning mechanism 2 includes a slider 21, a pair of lifting guide rods 22 disposed on the top surface of the slider 21, a piston-type lifting device 23, and an adjustable mounting rod 27. A roller slide group 24 is provided at the top inside the slider 21, meaning a roller slide group 24 is provided between the slider 21 and the corresponding guide rail 4. A through-beam photoelectric switch 26 is provided on the adjustable mounting rod 27. The slider 21 moves along the guide rail 4. The piston-type lifting device 23 is used to lift the filter cake crusher 3.

[0067] For example, in this embodiment 1, there are two guide rails 4. One end of one guide rail 4 is equipped with a return contactor 7, and the other end of the guide rail 4 is equipped with a return contactor 6. Under the traction of the electric traction mechanism, the mobile vibrating and positioning integrated mechanism 2 moves along the guide rail 4 with the filter cake crusher 3 between the return contactor 6 and the return contactor 7. Under the action of the mobile vibrating and positioning integrated mechanism 2, the filter cake crusher 3 collides with the vibrating rod 5.

[0068] Both guide rails 4 have integrated moving vibrating and positioning mechanisms 2. One of these mechanisms (actually an adjustable-height mounting rod) houses the light emitter of the through-beam photoelectric switch 26, while the other houses the light receiver. The through-beam photoelectric switch 26 should be installed above the lowest point of the plate frame 11 (i.e., the plate frame 11 of the plate frame filter press), ensuring that when it moves near the pressing plate 14 frame 11 of the plate frame filter press, it completely blocks the emitted light beam, preventing the receiver on the other side from receiving the light signal. The photoelectric switch feeds the information back to the automatic control system of the plate frame filter press. The automatic control system then uses an electric traction mechanism to control the integrated moving vibrating and positioning mechanism 2 to move or pause the filter cake crusher 3 on the guide rails 4. When paused (i.e., when the receiver on the other side does not receive the light signal), the filter cake crusher 3 can easily crush the filter cake falling from the plate frame 11.

[0069] The filter cake crusher 3 collides with the vibrating rod 5 under the action of the integrated moving vibrating and positioning mechanism 2. A corresponding vibrating rod 5 is set on the inner side of each guide rail 4, and it is ensured that the highest point is lower than the top surface of the vibrating rod 5 when the piston-type lifting device 23 is reset.

[0070] The piston-type lifter 23 is installed on the inner middle side of the top surface of the slider 21. Preferably, the piston-type lifter 23 is installed on the inner middle side of the slider 21, and the length of the piston rod is equivalent to the lifting height of the filter cake crusher 3.

[0071] Each end of the slider 21 has a set of top plates 25 and pressure plates 211 at its inner top. Each set of top plates 25 and pressure plates 211 defines a roller slide 24 on the guide rail 4. The lower edges of the top plates 25 and pressure plates 211 are higher than the top surface of the guide rail 4. The position of the top plates 25 is determined by the length of the roller slide 24, and its height should be less than the thickness of the slide to ensure that it does not touch the guide rail 4 during movement. The lower edge of the pressure plate 211 leaves a certain gap from the guide rail 4, which is recommended to be more than 10mm. The pressure plate 211 presses the roller slide 24 tightly to maintain it in a specific area. Two holes are made at corresponding positions on the top plates 25, pressure plates 211, and cleaning plates 212 for the slide support feet 242 to pass through. Figures 18-20 As shown, the top plate 25 of the sliding assembly has a first hole 251, the pressure plate 211 has a second hole 2111, and the cleaning plate 212 has a third hole 2121. The second hole 2111 and the third hole 2121 can be waist holes.

[0072] The structure of the roller slide block 24 is as follows Figures 13-17As shown, it consists of a rectangular sliding bracket 241 that can accommodate 1 to 5 rollers 243 with rollers 244. Symmetrical upward-facing slots (i.e., top-opening grooves 246) are arranged on both sides of the sliding bracket 241. Two circular sliding pins 242 are fixed to the front and rear ends of the sliding bracket 241. These pins are inserted into holes on the top plate 25 and pressure plate 211 (i.e., the first hole 251 of the top plate 25 and the second hole 2111 of the pressure plate 211), allowing the rollers 243 to contact the inner top surface of the slider 21 and the upper surface of the guide rail 4. This ensures that the weight of the slider 21 is directly transferred to the guide rail 4 by the rollers 243, without hindering the smooth movement of the filter cake crusher 3 on the guide rail 4. The roller slides 24 are not fixed inside the slider 21; they can be freely removed from the rail by removing the connecting bolts 213 of the pressure plate 211 for maintenance or replacement of worn parts.

[0073] The number of rollers in the roller slide block 24 varies depending on the size of the plate frame. The larger the plate frame, the heavier the filter cake that is unloaded, and the more rollers are needed. This ensures that the slider 21 moves smoothly on the track 4. For plate frame sizes less than 600mm, a roller slide block 24 with one roller is recommended; for sizes between 800 and 1000mm, a roller slide block 24 with two rollers is recommended; for sizes between 1250 and 1500mm, a roller slide block 24 with three rollers is recommended; and for sizes between 1600 and 2000mm, a roller slide block 24 with five rollers is recommended.

[0074] A fixing plate 210 is set at the top of each end of the slider 21. Each fixing plate 210 is connected to a pressure plate 211 and a cleaning plate 212 by connecting bolts 213. The cleaning plate 212 is located inside the pressure plate 211. The cleaning plate 212 is made of wear-resistant rubber. The lower edge of the cleaning plate 212 contacts the top surface of the guide rail 4 (or the lower edge of the cleaning plate 212 is close to the top surface of the guide rail 4), keeping the sliding surface of the guide rail 4 clean. That is, the cleaning plate 212 has a self-cleaning ability on the surface of the guide rail 4, ensuring that the moving vibrating and positioning integrated mechanism 2 moves smoothly back and forth on the guide rail 4 with the filter cake crusher 3.

[0075] The bottom ends of the slider 21 are fixed to a pair of inverted T-shaped stabilizers 28 with fixing screws 29. The vertical plate of the inverted T-shaped stabilizer 28 is inserted into the opening slot of the guide rail 4. The inverted T-shaped stabilizer 28 is connected to the electric traction mechanism. The thickness of the vertical plate of the inverted T-shaped stabilizer 28 is slightly smaller than the width of the slot of the guide rail 4, and the height should be 30-50mm from the inner bottom surface of the guide rail 4. The lower value is used when the guide rail 4 is small, and the higher value is used when the guide rail 4 is large. The width of the horizontal plate of the inverted T-shaped stabilizer 28 should be greater than the width of the slot of the guide rail 4 and less than the width of the guide rail 4. Its length should be more than 100mm to ensure stable movement of the integrated vibration and positioning mechanism 2.

[0076] The mobile vibratory positioning integrated mechanism 2 is installed after the guide rail 4. A 2-5mm gap must be maintained between the upper surface of the horizontal plate of the inverted T-shaped stabilizer 28 and the bottom of the guide rail 4. The roller slide block 24, cleaning plate 212, and inverted T-shaped stabilizer 28 are located at both ends of the slider 21. The through-beam photoelectric switch 26 is positioned at the front end of the slider 21 via an adjustable mounting rod 27 (e.g., in the direction of filter cake crushing towards the thrust plate 13). Its installation height must be higher than the bottom of the filter plate to ensure that the light emitted by the photoelectric switch 26 is completely blocked by the filter plate.

[0077] The filter cake crusher 3 includes four L-shaped support frames 31, two top rods 32, two blade ribs 33, and several blades 34. The four L-shaped support frames 31 are arranged symmetrically in pairs on the left and right, and parallel in the front and back, forming two sets of left L-shaped support frames 31 and right L-shaped support frames 31. The two ends of a blade rib 33 are connected to one end of the corresponding left L-shaped support frame 31 and one end of the corresponding right L-shaped support frame 31, forming a concave shape. That is, two concave components (i.e. concave members) are arranged in parallel. The blades 34 with notches 341 are fixed at equal distances and parallel to the blade ribs 33. The blades 34 and the blade ribs 33 are arranged perpendicularly, and the whole structure is a "groove" shaped structure.

[0078] The other end of the L-shaped support frame 31 extends outwards respectively. A top rod 32 is provided between the other ends of the two L-shaped support frames 31 on the left side, and a top rod 32 is provided between the other ends of the two L-shaped support frames 31 on the right side. Several blades 34 are mounted on the blade rib plate 33, with the blade edges of the blades 34 facing upwards.

[0079] The filter cake crusher is set up in the lifting guide rod 22 of the two-sided moving vibrating positioning integrated mechanism, and is positioned front and back on the same side (i.e. Figure 12 The two L-shaped support rods (left in the middle, front and right in the middle, rear) are located on the outer sides of a pair of lifting guide rods 22 on the same side, on the left and right sides (i.e., Figure 11 The top rods 32 (on the left and right sides in the transverse direction) are located inside the pair of lifting guide rods 22 on the same side; the top rods 32 and the lifting guide rods 22 cooperate to limit the left and right movement of the filter cake crusher 3. The two L-shaped support rods on the front and back of the left and right sides cooperate with the corresponding lifting guide rods 22, which also limit the front and back movement of the filter cake crusher 3. The two lifting guide rods 22 are symmetrically arranged on the outer side of the middle of the slider 21. The distance between their outer sides is less than the distance between the inner sides of the two L-shaped support frames 31 on the same side of the filter cake crusher 3 + 10 to 15 mm. The length of the lifting guide rod 22 is the lifting height of the filter cake crusher 3 + the height from the top surface of the slider 21 to the top surface of the vibrating rod 5 + 5 to 20 mm margin, so as to ensure that the filter cake crusher 3 can be lifted and lowered freely and smoothly during vibration crushing, without jamming, escape, or tipping over.

[0080] The piston rod of the piston-type jack 23 on the same side corresponds to the top rod 32 on the same side, and the center of the top rod 32 corresponds to the center of the piston rod of the piston-type jack 23 on the moving vibration positioning integrated mechanism 2.

[0081] This embodiment 1 describes a plate and frame filter press 11 with a movable filter cake crushing device. It includes a plate and frame 11, a plate and frame support 12, a thrust plate 13, a pressing plate 14, a plate pulling trolley track 15, a plate and frame plate pulling trolley 16, a liquid collecting flap 17, a hopper 18, a screw conveyor 19, and a pressing water pipe 110. These components of the filter press body 1 are the same as those of a general (diaphragm) plate and frame filter press 11. The filter cake crusher 3 moves below the filter press plate and frame 11, receiving and cutting the filter cake falling from the plate and frame 11. The crushed filter cake sequentially enters the hopper 18 and the screw conveyor 19.

[0082] The filter cake crusher 3 is mounted on the vibrating rods 5 on both sides of the plate and frame filter press 11, and is located between the bottom of the plate and frame 11 of the filter press 11 and the liquid collection flap 17. One vibrating rod 5 corresponds to one track and one integrated moving vibrating positioning mechanism 2.

[0083] A pair of integrated mobile vibratory positioning mechanisms 2 are symmetrically installed on the guide rails 4 on both sides of the plate and frame filter press 11. A corresponding vibratory rod 5 is installed on the inner side of each guide rail 4, ensuring that the highest point of the piston-type lifter 23 is lower than the top surface of the vibratory rod 5 when it resets. The guide rails 4 are installed at a height such that the filter cake crusher 3 will not touch any part of the integrated mobile vibratory positioning mechanism 2 when the piston rod of the piston-type lifter 23 in the integrated mobile vibratory positioning mechanism 2 falls back down.

[0084] When the plate and frame filter press 11 is unloading, the integrated vibration and positioning mechanism 2 is moved back and forth on the guide rail 4 by a chain driven by a motor and connected to the inverted T-shaped stabilizer 28.

[0085] The positioning of the mobile vibratory positioning integrated mechanism 2 is controlled by a set of through-beam photoelectric switches 26 mounted on it, through the automatic control system of the plate and frame filter press 11. The transmitter and receiver of the through-beam photoelectric switch 26 are respectively mounted on the adjustable height mounting rods of the mobile vibratory positioning integrated mechanism 2 on both sides. The installation position of the through-beam photoelectric switch 26 should be higher than the lowest point of the plate and frame 11, and it should be ensured that when it is moved near the plate and frame 11, it can completely block the emitted beam, so that the receiver on the other side cannot receive the light signal. That is, the mobile filter cake crushing device automatically positions the relative position of the unloading filter plate by sensing whether the light emitted by the transmitter of the through-beam photoelectric switch 26 is blocked by the filter plate.

[0086] The compressed air inlet at the bottom of the piston-type lifter 23 of the integrated moving vibrating and positioning mechanism 2 is connected to the outlet of the same two-position three-way solenoid valve via a pneumatic hose. The air intake and exhaust are controlled by the automatic control system (such as a PLC) of the plate and frame filter press 11. Compressed air pushes the piston rod in the piston-type lifter 23 upward, thereby lifting the filter cake crusher 3. When the solenoid valve exhausts air, the piston rod in the piston-type lifter 23 falls, and the filter cake crusher 3 falls as well. The L-shaped support frames 31 on both sides impact the vibrating rods 5 on both sides, generating a strong shearing force. Combined with the cutting action of the blades 34, large pieces of filter cake can be easily crushed. In other words, the combined action of the vibration of the filter cake crusher 3 and the cutting action of the blades 34 on the crusher achieves the purpose of crushing large pieces of filter cake, preventing large pieces of filter cake from forming arches in the hopper 18 below the plate and frame filter press 11.

[0087] The plate and frame filter press 11 also includes two liquid collection flaps 17. During pressing and filtration, the flaps flip up and close to collect the pressed filtrate. When the plate and frame 11 is unloading, the two liquid collection flaps 17 are located on both sides of the filter cake crusher 3, and the flipping shafts of the two liquid collection flaps 17 are located between the two vibrating rods 5 and the filter cake crusher 3. The top surface of the vibrating rod 5 is higher than the upper edge of the liquid collection flaps 17 when they are fully flipped down, ensuring that the L-shaped support frame 31 of the filter plate crusher and all parts of the filter plate crusher will not touch any part of the liquid collection flaps 17 during vibration.

[0088] The "groove" structure of the filter cake crusher 3 has a depth equal to the distance from the top surface of the vibrating rod 5 to the highest point of the liquid collection flap 17 when it is flipped down, plus the depth of insertion into the hopper. The width of the "groove" is designed to accommodate as much filter material as possible from the filter cake and ensure that the filter cake crusher 3 does not touch any part of the liquid collection flap 17 during vibration. The height to which the filter cake crusher 3 extends into the liquid collection flap 17 is generally such that the distance between the blade 34 and the upper edge of the liquid collection flap 17 is not less than 20cm to prevent the filter cake from splashing out when it is unloaded. The horizontal outward extension length of the L-shaped support frame 31 is based on the positioning of the guide rail 4. The distance between the two blade ribs 33 is not less than 2 / 3 of the length of the blade 34, and then a top rod 32 is fixed near the other end of the two L-shaped support frames 31 on the same side. The blade 34 has its blade facing upward, and the distance between the blade and the upper edge of the blade rib 33 is not less than the thickness of the filter cake to ensure that the blade 34 can cut the filter cake. The blades 34 and blade ribs 33 are installed perpendicularly, and the blades 34 are arranged parallel to each other at equal intervals, with a spacing of no more than 20cm. The length of the blades 34 is no less than the spacing of the unloading filter plates + the filter plate thickness + 20cm, to ensure that large pieces of filter cake falling from the unloading filter plates can land on the crushing blades 34.

[0089] The length of the slider 21 is comparable to the length of the blade 34 in the filter cake crusher 3. It is manufactured by a bending machine according to the outer dimensions of the guide rail 4, the dimensions of the roller slide block 24, and the thickness of the inverted T-shaped stabilizer 28.

[0090] A pair of guide rails 4 and a pair of vibrating rods 5 are symmetrically arranged on both sides of the plate and frame filter press 11. A return contactor 6 for the integrated moving vibrating and positioning mechanism 2 is installed in the direction of the hydraulic system of one of the guide rails 4, and a return contactor 7 is installed at the other end. The return contactor 7 is installed in a position that ensures it can only be triggered after the last filter plate has finished unloading, ensuring that all the unloading of the plate and frame 11 is crushed. The return contactor 6 is installed in a position that ensures the edge of the filter cake crusher 3 will not obstruct the movement of the liquid collecting flap 17, i.e., the integrated moving vibrating and positioning mechanism 2 should be completely moved out of the edge of the liquid collecting flap 17, and should not affect the normal operation of the liquid collecting flap 17.

[0091] Several blades 34 are arranged parallel to each other at equal intervals on the blade rib 33, with the spacing between the blades 34 within 200mm, ensuring that the crushed filter cake can fall into the screw conveyor 19 at the bottom of the feed hopper 18. The height of the blade edge protruding from the upper edge of the blade rib 33 is equivalent to the thickness of the filter cake, and the length of the blade 34 is more than 200mm larger than the distance between the two filter plates when discharging at the end of the filter chamber, ensuring that the filter cake can fall onto the crusher.

[0092] The inverted T-shaped stabilizer 28 of the mobile vibration positioning integrated mechanism 2 is connected to the traction chain of the electric traction mechanism. The electric traction device (i.e., the electric traction mechanism) pulls the mobile vibration positioning integrated mechanism 2 back and forth on the guide rail 4.

[0093] The plate and frame filter press 11 with a mobile filter cake crushing device in this embodiment 1 achieves the automatic crushing function of large filter cakes by the mobile vibrating positioning crusher through the following operation mode.

[0094] The plate and frame filter press 11 is started. The hydraulic system pressurizes and pushes the pressing plate 14 to press all the filter plates together. Feeding and pressure maintenance are performed into the filter chamber of the plate and frame 11. The secondary pressing water system is started to supply high-pressure pressing water to the diaphragm for pressure maintenance (if applicable). The high-pressure pressing water is depressurized (if applicable). The liquid collection flap 17 is tilted down. The piston-type lifting device 23 of the moving vibrating and positioning integrated mechanism 2 is air-pumped to lift the filter cake crusher 3. The moving vibrating and positioning integrated mechanism 2 moves the filter cake crusher 3 as a whole. When it moves to the through-beam light... When the receiver of the electric switch 26 fails to receive the emitted light source, it stops moving, the hydraulic system depressurizes, the clamping plate 14 detaches from the plate frame 11, the plate-pulling mechanism pulls the plate to unload the material, and the filter cake on the filter chamber falls onto the blades 34 of the filter plate crusher. The two-position three-way solenoid valve releases air, and the piston rod on the piston-type lifter 23, along with the filter cake crusher 3, falls down. The L-shaped support rod strikes the vibrating rod 5, and the large pieces of filter cake that fell onto the blades 34 are broken. The piston-type lifter 23 then re-introduces compressed air and once again crushes the filter cake. The filter cake crusher 3 is raised and moved forward. When the receiver of the through-beam photoelectric switch 26 can no longer receive the emitted light source, it stops moving, pulls the plate to unload, and the filter cake on the filter chamber of the plate frame 11 falls onto the blade 34 of the filter cake crusher 3. The two-position three-way solenoid valve exhausts air, and the piston rod on the piston-type lifter 23 falls down along with the filter cake crusher 3. The L-shaped support rod hits the vibrating rod 5, and the large pieces of filter cake that fell onto the blade 34 are broken. The piston-type lifter 23 re-intakes compressed air... and so on, until the last filter cake of the plate frame 11 is unloaded. When the moving vibrating positioning integrated mechanism 2 touches the return contactor 7, the moving vibrating positioning integrated mechanism 2 moves back along the guide rail 4 with the filter cake crusher 3 until the moving vibrating positioning integrated mechanism 2 touches the return contactor 6 and stops moving. The piston lifter 23 exhausts air, the filter cake crusher 3 falls onto the vibrating rod 5, and the liquid collection flap 17 flips up to wait for the next sludge dewatering operation. If the filter cake viscosity is found to be high, and a single vibration crushing is insufficient, multiple vibration crushing operations can be performed. The number of vibration crushing operations and the implementation of each step are controlled by the plate and frame filter press's control system.

[0095] The mobile filter cake crushing device is mainly achieved by a three-in-one mechanism integrating movement, positioning, and lifting—a mobile vibrating and positioning integrated mechanism—in conjunction with the filter cake crusher 3. In this embodiment 1, the plate and frame filter press 11 is equipped with a filter cake crushing device, which is installed between the bottom of the plate and frame 11 (i.e., the filter press body 1) and the lower hopper 18. Before the filter cake falls into the hopper 18, it is crushed into small pieces by the filter cake crushing device. After falling into the lower hopper 18, the small pieces of filter cake slide onto the screw conveyor 19 at the bottom of the hopper 18, thereby improving the automation level of the plate and frame filter press 11, that is, improving the sludge dewatering efficiency, reducing labor intensity, reducing the number of operators, and reducing sludge treatment costs.

[0096] See Figures 1 to 8Specific embodiment 2, this embodiment 2 provides a mobile filter cake crushing device, characterized in that: the mobile filter cake crushing device includes a mobile vibrating and positioning integrated mechanism 2, a filter cake crusher 3, a guide rail 4, a vibrating rod 5, a return contactor 6 and a return contactor 7, the mobile vibrating and positioning integrated mechanism 2 moves along the guide rail 4 with the filter cake crusher 3 under the traction of the electric traction mechanism.

[0097] The mobile vibration positioning integrated mechanism 2 includes a slider 21, a pair of lifting guide rods 22 disposed on the top surface of the slider 21, a piston-type lifting device 23, and an adjustable height mounting rod. The top of the slider 21 is provided with a roller slide block 24; the adjustable height mounting rod is provided with a through-beam photoelectric switch 26.

[0098] A piston-type lifter 23 is installed on the inner middle of the top surface of the slider 21. Each end of the slider 21 has a set of top sliding plates 25 and pressure plates 211, each defining a roller sliding block 24 on the guide rail 4. The lower edges of the top sliding plates 25 and pressure plates 211 are higher than the top surface of the guide rail 4. Each end of the slider 21 has a fixing plate 210, which is connected to a pressure plate 211 and a cleaning plate 212 by connecting bolts 213. The cleaning plate 212 is located inside the pressure plate 211, and its lower edge contacts the top surface of the guide rail 4. The bottom of each end of the slider 21 is fixed to a pair of inverted T-shaped stabilizers 28 by fixing screws 29. The vertical plates of the inverted T-shaped stabilizers 28 are inserted into the openings of the guide rail 4, and the inverted T-shaped stabilizers 28 are connected to an electric traction mechanism.

[0099] See Figures 13 to 20 The roller slide block 24 is mounted on the corresponding holes of the slide block top plate 25 and the pressure plate 211 through its front and rear circular slide block feet 242. The slider 2 can roll either by the roller 243 around the roller shaft 244, or by the roller shaft 244 itself rolling in the groove.

[0100] The filter cake crusher 3 includes four L-shaped support frames 31, two top rods 32, two blade ribs 33, and several blades 34. The four L-shaped support frames 31 are arranged symmetrically in pairs on the left and right, and parallel in pairs in front and behind, forming two sets of left L-shaped support frames 31 and right L-shaped support frames 31. The two ends of one blade rib 33 are connected to one end of the corresponding left L-shaped support frame 31 and one end of the corresponding right L-shaped support frame 31, forming a concave shape. The other end of the L-shaped support frames 31 extends outward. A top rod 32 is provided between the other ends of the two left L-shaped support frames 31 and between the other ends of the two right L-shaped support frames 31. Several blades 34 are mounted on the blade ribs 33, with the blade edges of the blades 34 facing upward.

[0101] The filter cake crusher 3 is fitted into the lifting guide rods 22 of the two-sided moving vibrating positioning integrated mechanism. The two L-shaped support rods on the same side are located on the outside of the pair of lifting guide rods 22 on the same side, and the top rods 32 on the left and right sides are located on the inside of the pair of lifting guide rods 22 on the same side. The piston rod of the piston-type lifting device 23 on the same side corresponds to the top rod 32 on the same side. A return contactor 7 is provided at one end of the guide rail 4, and a return contactor 6 is provided at the other end of the guide rail 4. Under the traction of the electric traction mechanism, the moving vibrating positioning integrated mechanism 2 moves along the guide rail 4 with the filter cake crusher 3 between the return contactor 6 and the return contactor 7. The filter cake crusher 3 collides with the vibrating rod 5 under the action of the moving vibrating positioning integrated mechanism 2.

[0102] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0103] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0104] The above description is merely a preferred embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A mobile filter cake crushing device, characterized in that: The mobile filter cake crushing device includes a mobile vibrating and positioning integrated mechanism (2), a filter cake crusher (3), a guide rail (4), a vibrating rod (5), a return contactor (6), and a return contactor (7). The mobile vibrating and positioning integrated mechanism (2) moves along the guide rail (4) with the filter cake crusher (3) under the traction of the electric traction mechanism. A return contactor (7) is provided at one end of the guide rail (4), and a return contactor (6) is provided at the other end of the guide rail (4). The moving vibrating positioning integrated mechanism (2) moves along the guide rail (4) with the filter cake crusher (3) between the return contactor (6) and the return contactor (7) under the traction of the electric traction mechanism. The filter cake crusher (3) collides with the vibrating rod (5) under the action of the moving vibrating positioning integrated mechanism (2). The mobile vibratory positioning integrated mechanism (2) includes a slider (21) and a piston-type lifter (23) set on the top surface of the slider (21). The piston rod of the piston-type lifter (23) corresponds to the top rod of the filter cake crusher (3) and is used to lift the filter cake crusher (3). When the piston rod of the piston-type lifter (23) falls, the filter cake crusher (3) and the filter cake also fall. When the filter cake crusher (3) hits the vibratory rod (5), it generates shear force and realizes the crushing of the filter cake on the filter cake crusher (3).

2. The mobile filter cake crushing device according to claim 1, characterized in that: The mobile vibration positioning integrated mechanism (2) also includes a pair of lifting guide rods (22) and an adjustable height mounting rod (27) set on the top surface of the slider (21). The top of the slider (21) is provided with a roller slide group (24); the adjustable height mounting rod (27) is provided with a through-beam photoelectric switch (26).

3. The mobile filter cake crushing device according to claim 2, characterized in that: The piston-type lifter (23) is installed on the inner middle side of the top surface of the slider (21); The top of each end of the slider (21) is provided with a top plate (25) and a pressure plate (211). Each top plate (25) and pressure plate (211) defines a roller slide (24) on the guide rail (4). The lower edge of the top plate (25) and the lower edge of the pressure plate (211) are both higher than the top surface of the guide rail (4). A fixing plate (210) is fixed at the top of each end of the slider (21). Each fixing plate (210) is connected to a pressure plate (211) and a cleaning plate (212) by connecting bolts (213). The cleaning plate (212) is located inside the pressure plate (211), and the lower edge of the cleaning plate (212) is in contact with the top surface of the guide rail (4). Holes for mounting slide block brackets (241) are made at corresponding positions on each slide block top plate (25), cleaning plate (212) and pressure plate (211); two circular slide block pins (242) are inserted into the holes of the slide block top plate (25), cleaning plate (212) and pressure plate (211) respectively. The bottom of both ends of the slider (21) are fixed to a pair of inverted T-shaped stabilizers (28) by fixing screws (29). The vertical plate of the inverted T-shaped stabilizer (28) is inserted into the opening groove of the guide rail (4). The inverted T-shaped stabilizer (28) is connected to the electric traction mechanism.

4. A mobile filter cake crushing device according to claim 2 or 3, characterized in that: The roller slide block (24) includes a rectangular slide block bracket (241), four slide block pins (242), rollers (243), roller shafts (244), and retaining rings (245) at both ends of the rollers; a through hole larger than the diameter of the roller shaft (244) is opened in the axial direction of the roller (243), and after the roller shaft (244) passes through the through hole of the roller (243), the retaining ring (245) is fixed on the retaining ring groove (2441) of the roller shaft (244) to restrict the displacement of the roller axis, while allowing the roller (243) to roll freely on the roller shaft; The middle part of the roller (244) is a polished optical shaft, and there are retaining ring grooves (2441) at both ends for fixing retaining rings (245). The inner spacing of the retaining ring grooves (2441) is greater than the length of the roller (243). The diameter of the roller (244) at both ends is smaller than the diameter of the middle part of the roller (244). The end and middle diameter of the roller (244) are variable shaft diameter positions (2442). The distance between the two variable shaft diameter positions (2442) is smaller than the inner width of the slide bracket (241). The total length of the roller (244) must be less than the distance between the inner horizontal sides of the slider (21).

5. A mobile filter cake crushing device according to claim 1, 2, or 3, characterized in that: The filter cake crusher (3) includes four L-shaped support frames (31), two top rods (32), two blade ribs (33) and several blades (34). Four L-shaped support frames (31) are arranged symmetrically on the left and right sides and parallel in front and back, forming two sets of left L-shaped support frames (31) and right L-shaped support frames (31). The two ends of a blade rib plate (33) are connected to one end of the corresponding left L-shaped support frame (31) and one end of the right L-shaped support frame (31) in the same set, forming a concave shape. The other end of the L-shaped support frame (31) extends outward respectively. A top rod (32) is provided between the other ends of the two L-shaped support frames (31) on the left and a top rod (32) is provided between the other ends of the two L-shaped support frames (31) on the right. Several blades (34) are mounted on the blade rib plate (33), with the blade edges of the blades (34) facing upwards.

6. The mobile filter cake crushing device according to claim 5, characterized in that: The filter cake crusher (3) is fitted into the lifting guide rod (22) of the two-sided moving vibrating positioning integrated mechanism. The two L-shaped support rods on the same side are located on the outside of the pair of lifting guide rods (22) on the same side, and the top rods on the left and right sides are located on the inside of the pair of lifting guide rods (22) on the same side. The piston rod of the piston-type jack (23) on the same side corresponds to the jack rod (32) on the same side.

7. A plate and frame filter press with a mobile filter cake crushing device, the plate and frame filter press comprising a plate and frame (11) and a liquid collecting flap (17), characterized in that: The plate and frame filter press also includes the mobile filter cake crushing device as described in claim 1, 2, 3 or 6, wherein the filter cake crusher (3) is mounted on the vibrating rods (5) on both sides of the plate and frame filter press and is located between the bottom of the plate and frame filter press (11) and the liquid collection flap (17). A pair of mobile vibrating and positioning integrated mechanisms (2) are symmetrically installed on the guide rails (4) on both sides of the plate and frame filter press. The guide rails (4) are made of open square tubes. Each guide rail (4) has a corresponding vibrating rod (5) on its inner side, and ensures that the highest point is lower than the top surface of the vibrating rod (5) when the piston-type lifting device (23) is reset. When the plate and frame filter press is unloading, the integrated vibration and positioning mechanism (2) is moved back and forth on the guide rail (4) by a chain driven by a motor and connected to an inverted T-shaped stabilizer (28).

8. A plate and frame filter press with a mobile filter cake crushing device according to claim 7, characterized in that: The positioning of the mobile vibrating positioning integrated mechanism (2) is controlled by a set of through-beam photoelectric switches installed on it through the automatic control system of the plate and frame filter press. The transmitter and receiver of a set of through-beam photoelectric switches are respectively installed on the adjustable height mounting rods (27) of the mobile vibrating positioning integrated mechanism (2) on both sides. The installation position of the through-beam photoelectric switch (26) should be higher than the lowest point of the plate frame (11) and ensure that it can completely block the emitted beam when it is moved near the plate frame (11) so that the receiver on the other side cannot receive the light signal. The through-beam photoelectric switch (26) is located at the front end of the slider (21) when the material is discharged and vibrated.

9. A plate and frame filter press with a mobile filter cake crushing device according to claim 8, characterized in that: The rectangular slide bracket (241) of the roller slide block (24) can install 1 to 5 standard rollers (243). The outer edge width of the slide bracket (241) is greater than the distance between the two variable shaft diameter positions in the roller (244) by 1 to 3 mm. The thickness of the slide bracket (241) is less than the diameter of the roller (243) by 10 to 20 mm, and the slide bracket (241) does not touch the upper surface of the guide rail (4). Two circular sliding pins (242) are fixed at the middle positions of the front and rear frames of the sliding bracket (241). The diameter of the sliding pins (242) is smaller than the diameter of the holes on the top plate (25) and pressure plate (211) of the sliding bracket. The left and right frames of the sliding bracket (241) are symmetrically provided with 1 to 5 open grooves (246). The bottom of the grooves (246) is semi-circular, and the diameter of the grooves (246) is 1 to 2 mm larger than the shaft diameter at the end of the roller (244). The groove (246) is smaller than the shaft diameter of the middle part of the roller (244) by 3 to 5 mm. The center of the bottom semi-circle of the groove (246) is lower than the middle position of the frame thickness of the slide block bracket (241). After the roller slide block (24) is assembled, the roller (244) with rollers (243) is placed in the groove (246) of the left and right frames of the slide block bracket (241). Then, the whole assembly is installed in the slide block top plate (25) and pressure plate (211) at both ends of the slider (21), and all rollers (243) can contact the inner top surface of the slider (21) and the guide rail (4), so that the weight of the slider (21) is directly transmitted to the guide rail (4) through the rollers (243), instead of being transmitted to the roller (244) and the slide block bracket (241).

10. A plate and frame filter press with a mobile filter cake crushing device according to claim 8, characterized in that: The compressed air inlet at the bottom of the piston-type lifter (23) of the two-sided moving vibration positioning integrated mechanism (2) is connected to the outlet of the same two-position three-way solenoid valve by a pneumatic hose. The compressed air pushes the piston rod in the piston-type lifter (23) to rise, thereby lifting the filter cake crusher (3).

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