Filter press facilitating mud cake discharge

Abstract

This invention relates to the field of filter press design technology and discloses a filter press that facilitates cake unloading. It includes a frame, a filter press body with multiple filter plates mounted on the frame, and a discharge port located on the lower side of the filter press body. Four columns supported on the ground are arranged on the lower side of the frame. A conveyor belt is arranged between the columns and below the discharge port. Both ends of the conveyor belt are equipped with drive rollers rotatably connected to the columns. Supporting steel plates are arranged between the columns and inside the lower side of the conveyor belt. A connecting shaft extending parallel to the extension direction of the conveyor belt is arranged between two columns. Multiple dispersing rods evenly spaced along the extension direction of the connecting shaft are arranged on the connecting shaft. The lower end of each dispersing rod is fitted with a sleeve on the connecting shaft. A drive assembly for driving the dispersing rods to strike the cake falling onto the conveyor belt is arranged between the columns.

Description

Technical Field

[0001] This invention belongs to the field of filter press design technology, and specifically relates to a filter press that facilitates the discharge of sludge cake. Background Technology

[0002] A filter press is a mechanical device that uses a special filter medium to apply pressure to a material, causing the liquid to seep out. It is a commonly used solid-liquid separation device. It was applied to chemical production in the early 18th century and is still widely used in industries such as chemicals, pharmaceuticals, metallurgy, dyes, food, brewing, ceramics, and environmental protection.

[0003] Currently, Chinese patent CN219558825U, published on August 22, 2023, discloses a high-efficiency and energy-saving diaphragm filter press, including a high-efficiency and energy-saving diaphragm filter press main unit. A mud collecting hopper is bolted to the bottom of the main unit, and an operation box is bolted to the middle of the mud collecting hopper. A transmission bar is slidably connected inside the operation box, and a wheel frame is slidably connected to the protrusion at the top of the transmission bar. The axis of the wheel frame is rotatably connected to the inside of the operation box. A rack is slidably connected to the protrusion on the left side of the wheel frame surface, and a pinion is engaged with the teeth of the rack. A rotating rod is rotatably sleeved inside the mud collecting hopper. Through structural transmission, the crushing blade can be driven to vibrate. The vibration of the crushing blade can cut the mud cake discharged from the high-efficiency and energy-saving diaphragm filter press main unit, crushing the mud cake into pieces, reducing its volume, facilitating the discharge of the mud cake, and avoiding clogging of the mud collecting hopper.

[0004] The sludge cake formed inside the filter press is discharged downward through the sludge hopper; the sludge cake needs to be transported to a designated location by operators using a wheelbarrow, and then further processed. Common processing methods include incineration, landfill, and composting; however, the sludge cake often clumps together after falling, which can easily affect space utilization during transportation. Summary of the Invention

[0005] The purpose of this invention is to provide a filter press that facilitates the unloading of mud cakes, and can break up the mud cakes while unloading them, thereby making efficient use of transport space.

[0006] The above-mentioned technical objective of the present invention is achieved through the following technical solution: a filter press for easy unloading of sludge cake, comprising a frame, a filter press body located on the frame and having multiple filter plates, and a discharge port located on the lower side of the filter press body. Four columns supported on the ground are provided on the lower side of the frame. A conveyor belt is provided between the columns and below the discharge port. Both ends of the conveyor belt are provided with drive rollers whose ends are rotatably connected to the columns. Support steel plates are provided between the columns and inside the lower side of the conveyor belt. A connecting shaft is provided between two columns, with its extension direction parallel to the extension direction of the conveyor belt. Multiple dispersing rods are provided on the connecting shaft, evenly spaced along the extension direction of the connecting shaft. The lower end of each dispersing rod is provided with a sleeve fitted on the connecting shaft. A drive assembly for driving the dispersing rods to strike the sludge cake falling on the conveyor belt is provided between the columns.

[0007] By adopting the above technical solution, after the mud cake falls from the discharge port, it can fall onto the conveyor belt. Then, the drive component drives the dispersing rod on the connecting shaft to rotate. At this time, the dispersing rod can strike the mud cake on the conveyor belt. The striking force can break up the hardened mud cake. Then it is transported out through the conveyor belt. Finally, the mud cake can be dispersed at the same time as it is unloaded, which is conducive to the efficient use of transportation space.

[0008] A further feature of the present invention is that: a downwardly inclined guide plate is provided between the plurality of columns and above both sides of the conveyor belt, and an operating port for the dispersing rod to pass through is provided on the guide plate near the dispersing rod.

[0009] By adopting the above technical solution, the mud cake falling on the upper side of the conveyor belt is guided and blocked by the guide plates on both sides, which is conducive to the stable falling of the mud cake on the conveyor belt, and also conducive to the stable transmission of the mud cake on the conveyor belt; wherein the guide plate has an operating port through which the dispersing rod passes, thereby avoiding interference between the movement of the guide plate and the dispersing rod.

[0010] A further feature of the present invention is that the end of the dispersing rod away from the rod sleeve is provided with a plurality of dispersing arms that are evenly spaced along the extension direction of the dispersing rod.

[0011] By adopting the above technical solution, multiple dispersing arms are set at the end of the dispersing rod away from the rod sleeve. The dispersing arms can increase the contact area between the dispersing arms and the mud cake, which is conducive to efficiently breaking up the mud cake.

[0012] A further configuration of the present invention is as follows: a connecting disc is fixed on the connecting shaft and located on one side of the rod sleeve; a return torsion spring is sleeved on the connecting shaft between the connecting disc and the rod sleeve; when the return torsion spring is in its natural state, the disintegrating rod is in a vertically upward position; the driving assembly includes a crossbar disposed between two columns located on one side of the connecting shaft and parallel to the connecting shaft, a sliding seat disposed on the upper side of the crossbar and slidably connected along the extension direction of the crossbar, a driving motor disposed on the sliding seat, a driving gear disposed on the output shaft of the driving motor, a rack disposed on one side of the crossbar and meshing with the driving gear, a first connecting rod disposed on the side of the rod sleeve away from the disintegrating rod, a connecting arm disposed on the side of the sliding seat away from the driving motor and extending in a vertically upward direction, and a... The system includes a support plate at the upper end of the connecting arm that supports the tilting first link; a guide tilting arm on one side of the support plate that drives the first link to tilt away from the conveyor belt; a drive shaft between two columns and parallel to the connecting shaft; a mounting arm on the columns that is rotatably connected to the end of the drive shaft; a reduction motor at one end of the drive shaft that drives the drive shaft to rotate; and multiple second links on the drive shaft that correspond to multiple first links. When the first link tilts under the action of the guide tilting arm, the drive shaft drives the second links to rotate, causing the second links to swing the tilted first links upward. A roller is rotatably connected to the end of the first link away from the sleeve, which abuts against the side wall of the second link.

[0013] By adopting the above technical solution, when multiple filter plates in the filter press body are unloaded one by one, the drive motor is started according to the different positions of the mud cake falling. The drive motor can drive the drive gear to rotate. Since the drive gear meshes on the rack, the rotation of the drive motor can drive the sliding seat to slide left and right along the crossbar. The guide tilting arm on the sliding seat can abut against the first connecting rod and pass over each first connecting rod until the sliding seat moves to the first connecting rod at the mud cake falling position. At this time, the guide tilting arm drives the first connecting rod at the mud cake position to tilt away from the conveyor belt, and then the tilted first connecting rod is supported at the position of the support plate.

[0014] Then, the reduction motor is started, causing the reduction motor to drive the drive shaft to rotate. The drive shaft then drives the multiple second links on it to rotate. At this time, the roller at the lower end of the first link, which is in an inclined state, can abut against the second link. Then, the rotation of the second link causes the first link to swing upward, and the breaking rod swings downward and strikes the mud cake at the corresponding position. At the same time, the return torsion spring undergoes elastic deformation. When the second link continues to rotate and separates from the first link, the elastic restoring force of the return torsion spring can drive the breaking rod to swing upward. At the same time, the first link swings downward and continues to abut against the support plate until the drive shaft drives the second link to abut against the first link again. Then, the breaking rod can swing downward again to strike. Finally, as the drive shaft rotates, the breaking rod at the mud cake position can continuously swing up and down to strike, thereby completing the mud cake breaking operation.

[0015] As the next filter plate in the filter press body unloads sludge, the drive motor moves the sliding seat to the first connecting rod position of the next sludge cake location, thereby driving the breaking rod at that position to break up the sludge cake. Finally, after all the filter plates on the filter press body have completed the sludge unloading operation, the various positions on the conveyor belt will be filled with the broken sludge cake, and then the conveyor belt will be used to transport these broken sludge cakes out.

[0016] A further feature of the present invention is that a dovetail groove is provided on the crossbar, the extension direction of which is parallel to the extension direction of the crossbar, and a dovetail slider is provided on the lower side of the sliding seat, which is embedded in the dovetail groove.

[0017] By adopting the above technical solution, the sliding seat utilizes a dovetail slider embedded in a dovetail groove on the crossbar, thereby enabling the sliding seat to move stably back and forth along the crossbar.

[0018] A further feature of the present invention is that a driven bevel gear is keyed to the end of the transmission roller located at one end of the conveyor belt, a spline shaft is integrally provided at the end of the drive shaft away from the reduction motor, a drive bevel gear that cooperates with the spline shaft is sleeved on the spline shaft, and a sliding component for driving the drive bevel gear to move back and forth along the spline shaft is provided between the drive shaft and the sliding seat.

[0019] By adopting the above technical solution, after all the filter plates on the filter press body have completed the sludge unloading operation and the conveyor belt is covered with the broken sludge cake, the sliding component drives the active bevel gear to move towards the driven bevel gear, so that the active bevel gear and the driven bevel gear mesh. At this time, after the geared motor drives the active shaft to rotate, the active shaft can drive the transmission roller to rotate through the active bevel gear and the driven bevel gear, thereby driving the conveyor belt to start transmission through the transmission roller, and finally realizing the transmission through the geared motor driving the conveyor belt.

[0020] A further configuration of the present invention is as follows: the sliding assembly includes a fixed disk disposed at the end of the spline shaft away from the driving bevel gear, a return spring sleeved on the spline shaft, and a drive rod with one end connected to the sliding seat and the other end abutting against the end face of the driving bevel gear, wherein one end of the return spring is connected to the driving bevel gear and the other end is connected to the fixed disk.

[0021] By adopting the above technical solution, when all the filter plates on the filter press body have completed the sludge unloading operation and the conveyor belt is covered with the broken sludge cake, the drive motor drives the sliding seat to move towards the side closer to the active bevel gear. Then the drive rod on the sliding seat can abut against the active bevel gear and drive the active bevel gear to mesh with the driven bevel gear, thus realizing the multiple uses of the drive motor.

[0022] A further feature of the present invention is that the end of the drive rod away from the sliding seat is provided with a rounded tip.

[0023] By adopting the above technical solution, the round tip can reduce the contact area between the drive rod and the active bevel gear, and ultimately reduce the friction between the drive rod and the active bevel gear.

[0024] A further feature of the present invention is that the mounting arm is provided with a guide sleeve through which the drive rod passes.

[0025] By adopting the above technical solution, the drive rod can abut against the active bevel gear after passing through the guide sleeve on the mounting arm. At this time, the guide sleeve can play a guiding role, which is conducive to the drive rod abutting against the active bevel gear stably.

[0026] The beneficial effects of the present invention are as follows: When multiple filter plates in the filter press body are unloaded one by one, the drive motor is started according to the different positions of the mud cake falling. The drive motor can drive the drive gear to rotate. Since the drive gear meshes on the rack, the rotation of the drive motor can drive the sliding seat to slide left and right along the crossbar. The guide tilting arm on the sliding seat can abut against the first connecting rod and pass over each first connecting rod until the sliding seat moves to the first connecting rod at the mud cake falling position. At this time, the guide tilting arm drives the first connecting rod at the mud cake position to tilt away from the conveyor belt. Then the tilted first connecting rod is supported at the position of the support plate.

[0027] Then the reduction motor is started. At this time, because the drive rod on the sliding seat is separated from the active bevel gear, the active bevel gear is also separated from the driven bevel gear under the action of the return spring. Therefore, the reduction motor cannot drive the conveyor belt for transmission. After the reduction motor drives the drive shaft to rotate, the drive shaft can drive the multiple second links on it to rotate. At this time, the roller at the lower end of the first link, which is in an inclined state, can abut against the second link. Then the rotation of the second link can drive the first link to swing upward, and the breaking rod can swing downward and strike the mud cake at the corresponding position. At the same time, the return torsion spring undergoes elastic deformation. When the second link continues to rotate and separates from the first link, the elastic restoring force of the return torsion spring can drive the breaking rod to swing upward. At the same time, the first link swings downward and continues to abut against the support plate until the drive shaft drives the second link to abut against the first link again. Then the breaking rod can swing downward again to strike. Finally, as the drive shaft rotates, the breaking rod at the mud cake position can continuously swing up and down to strike, thereby completing the mud cake breaking operation.

[0028] As the next filter plate of the filter press body unloads the mud, the drive motor can drive the sliding seat to move to the position of the first connecting rod at the next mud cake position, thereby driving the breaking rod at that position to break the mud cake; finally, when all the filter plates on the filter press body have completed the mud unloading operation, the various positions on the conveyor belt can be filled with the broken mud cake.

[0029] Then, the drive motor moves the sliding seat towards the side closer to the driving bevel gear. The drive rod on the sliding seat passes through the guide sleeve and abuts against the driving bevel gear, thereby pushing the driving bevel gear and the driven bevel gear to mesh, and the return spring is stretched. At this time, the reduction motor is started. After the reduction motor drives the drive shaft to rotate, the drive shaft can drive the transmission roller to rotate through the driving bevel gear and the driven bevel gear. In turn, the transmission roller drives the conveyor belt to start the transmission. Finally, the broken mud cake is transported out by the transmission belt driven by the reduction motor.

[0030] This allows for the breaking up of the mud cake during unloading, thus facilitating efficient use of transport space. Attached Figure Description

[0031] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0032] Figure 1 This is a schematic diagram of the structure of the present invention;

[0033] Figure 2 This is a schematic diagram of the structure of the present invention after omitting the frame, filter press main unit and discharge port;

[0034] Figure 3 This is an enlarged view of a portion of the structure located at the end of the conveyor belt near the driven bevel gear in this invention;

[0035] Figure 4 This is a partial plan view of the connection relationship between the column, the conveyor belt and the drive assembly in this invention. At this time, the sliding seat moves to the first connecting rod at the mud cake falling position, and the guide tilting arm drives the first connecting rod at the mud cake position to tilt away from the conveyor belt. At the same time, the drive shaft drives the second connecting rod to abut against the roller of the first connecting rod.

[0036] Figure 5 This is a plan view of the connection relationship between the column, the conveyor belt and the drive assembly in this invention. At this time, the drive shaft drives the first connecting rod to swing upward through the second, while the dispersing rod swings downward and strikes the mud cake at the corresponding position.

[0037] Figure 6 This is a partial structural plan view of the conveyor belt near the driven bevel gear in this invention. At this time, the sliding seat slides to the right limit position, and at the same time pushes the driving bevel gear and the driven bevel gear to complete the meshing.

[0038] In the diagram, 1. Frame; 11. Filter press body; 12. Drainage port; 2. Column; 21. Support steel plate; 22. Connecting shaft; 221. Connecting disc; 222. Return torsion spring; 23. Guide plate; 231. Operating port; 3. Conveyor belt; 31. Drive roller; 311. Driven bevel gear; 4. Dispersing rod; 41. Rod sleeve; 42. Dispersing arm; 5. Drive assembly; 51. Crossbar; 511. Dovetail slide; 52. Sliding seat; 521. Dovetail slider; 53. 54. Drive motor; 55. Drive gear; 56. Rack; 57. First connecting rod; 58. Roller; 59. Connecting arm; 500. Support plate; 501. Guide tilting arm; 502. Drive shaft; 503. Mounting arm; 504. Guide sleeve; 505. Gearbox; 506. Second connecting rod; 607. Splined shaft; 61. Drive bevel gear; 708. Sliding assembly; 709. Fixed plate; 700. Return spring; 700. Drive rod; 700. Round tip. Detailed Implementation

[0039] The technical solutions in the embodiments will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0040] A filter press that facilitates cake discharge, as described above. Figure 1 This filter press, which facilitates the discharge of filter cake, includes a frame 1, a filter press body 11, and a discharge port 12. The filter press body 11 is mounted on the frame 1 and contains multiple filter plates. The filter plates can be separated to complete the discharge of filter cake. Since the internal structure of the filter press body 11 is existing technology, it will not be described in detail here. The discharge port 12 is located on the lower side of the filter press body 11, through which the filter cake can fall out.

[0041] Reference Figure 1 , Figure 2 , Figure 3 The lower side of the frame 1 is also fixed with four columns 2 supported on the ground by bolts. A conveyor belt 3 is set between the columns 2 and below the discharge port 12. Both ends of the conveyor belt 3 are equipped with drive rollers 31, and the ends of the drive rollers 31 are rotatably connected to the columns 2 through bearing seats. At the same time, a support steel plate 21 is fixed between the multiple columns 2 and inside the lower side of the conveyor belt 3 by bolts. The support steel plate 21 supports the conveyor belt 3.

[0042] Reference Figure 2 , Figure 3 A connecting shaft 22, extending parallel to the direction of the conveyor belt 3, is welded between the two columns 2. Multiple dispersing rods 4, evenly spaced along the extension direction of the connecting shaft 22, are mounted on the connecting shaft 22. The lower end of each dispersing rod 4 is integrally fitted with a sleeve 41 that fits onto the connecting shaft 22, allowing one end of the dispersing rod 4 to be rotatably connected to the connecting shaft 22. Simultaneously, multiple dispersing arms 42 are welded to the end of the dispersing rod 4 away from the sleeve 41, and these arms are evenly spaced along the extension direction of the dispersing rod 4. The multiple columns 2 are located between... Both sides of the conveyor belt 3 are fixed with downwardly inclined guide plates 23 by bolts. The guide plate 23 located near the disintegrating rod 4 has an operation port 231 for the disintegrating rod 4 to pass through. At the same time, a connecting plate 221 is welded to the connecting shaft 22 and located on one side of the rod sleeve 41. A reset torsion spring 222 is sleeved on the connecting shaft 22 between the connecting plate 221 and the rod sleeve 41. One end of the reset torsion spring 222 is welded to the connecting plate 221 and the other end is welded to the rod sleeve 41. When the reset torsion spring 222 is in its natural state, the disintegrating rod 4 is in a vertically upward position.

[0043] Reference Figure 2 , Figure 3 , Figure 4 , Figure 5A drive assembly 5 is also provided between multiple columns 2. The drive assembly 5 is used to drive the dispersing rod 4 to knock the mud cake that falls on the conveyor belt 3. The drive assembly 5 includes a crossbar 51, a sliding seat 52, a drive motor 53, a drive gear 54, a rack 55, a first connecting rod 56, a connecting arm 57, a support plate 58, a guide tilting arm 59, a drive shaft 501, a mounting arm 502, a reduction motor 503, and a second connecting rod 504. The crossbar 51 is located between two columns 2 on one side of the connecting shaft 22 and is parallel to the connecting shaft 22. The end of the crossbar 51 is fixedly connected to the column 2 by bolts. The sliding seat 52 is mounted on the upper side of the crossbar 51 and slides along the extension direction of the crossbar 51. The crossbar 51 has a dovetail groove 511 extending parallel to its extension direction. A dovetail slider 521, embedded in the dovetail groove 511, is welded to the lower side of the sliding seat 52. The drive motor 53 is bolted to the upper side of the sliding seat 52, and the drive gear 54 is keyed to the output shaft of the drive motor 53. The rack 55 is integrally mounted on one side of the crossbar 51 and meshes with the drive gear 54, with its extension direction parallel to the extension direction of the crossbar 51. The first connecting rod 56 is integrally mounted on the side of the rod sleeve 41 away from the dispersing rod 4, while the connecting arm 57 is welded to the sliding seat 52 away from the drive motor 53 and extends vertically upward. Meanwhile, the support plate 58 is welded to the upper end of the connecting arm 57 and provides support for the tilting first connecting rod 56. The guide tilting arm 59 is integrally mounted on one side of the support plate 58 and is used to drive the first connecting rod 56 to tilt away from the conveyor belt 3. The drive shaft 501 is located between the two columns 2 and parallel to the connecting shaft 22, while the mounting arm 502 is welded to the column 2 and provides support for the drive shaft 501. The first link 504 is rotatably connected by bearings; the geared motor 503 is located at one end of the drive shaft 501 and is used to drive the drive shaft 501 to rotate. The second link 504 is provided with multiple links corresponding to the positions of multiple first links 56. The end of the first link 56 away from the sleeve 41 is rotatably connected by a shaft and bearing to a roller 561 for abutting against the side wall of the second link 504. When the first link 56 tilts under the action of the guide tilting arm 59, the drive shaft 501 drives the second link 504 to rotate, causing the second link 504 to drive the tilted first link 56 to swing upward.

[0044] Reference Figure 2 , Figure 3 , Figure 6A driven bevel gear 311 is keyed to the end of the transmission roller 31 located at one end of the conveyor belt 3. A splined shaft 6 is integrally provided at the end of the drive shaft 501 away from the reduction motor 503. The drive bevel gear 61 is sleeved on the splined shaft 6, and the interior of the drive bevel gear 61 has a spline groove that mates with the splined shaft 6. At the same time, a sliding assembly 7 is provided between the drive shaft 501 and the sliding seat 52 to drive the drive bevel gear 61 to move back and forth along the splined shaft 6. This sliding assembly 7 includes a fixed plate 701, a return spring 702, and a drive rod 703. 701 is integrally set at the end of the spline shaft 6 away from the driving bevel gear 61, while the return spring 702 is sleeved on the spline shaft 6. At the same time, one end of the return spring 702 is welded to the driving bevel gear 61 and the other end is welded to the fixed plate 701. The drive rod 703 is bolted to the sliding seat 52 at one end and abuts against the end face of the driving bevel gear 61 at the other end. The drive rod 703 is integrally set with a round tip 7031 at the end away from the sliding seat 52, and the mounting arm 502 is also integrally set with a guide sleeve 5021 for the drive rod 703 to pass through.

[0045] Principle: When multiple filter plates in the filter press body 11 are unloaded one by one, the drive motor 53 is started according to the different positions of the mud cake. The drive motor 53 drives the drive gear 54 to rotate. Since the drive gear 54 is meshed on the rack 55, the rotation of the drive motor 53 can drive the sliding seat 52 to slide left and right along the crossbar 51. The guide tilting arm 59 on the sliding seat 52 can abut against the first connecting rod 56 and pass over each first connecting rod 56 until the sliding seat 52 moves to the first connecting rod 56 at the mud cake falling position. At this time, the guide tilting arm 59 drives the first connecting rod 56 at the mud cake position to tilt away from the conveyor belt 3, and then the tilted first connecting rod 56 is supported at the position of the support plate 58.

[0046] Then, the reduction motor 503 is started. At this time, since the drive rod 703 on the sliding seat 52 is separated from the driving bevel gear 61, the driving bevel gear 61 is separated from the driven bevel gear 311 under the action of the return spring 702. Therefore, the reduction motor 503 cannot drive the conveyor belt 3 for transmission. After the reduction motor 503 drives the drive shaft 501 to rotate, the drive shaft 501 can drive the multiple second connecting rods 504 on it to rotate. At this time, the roller 561 at the lower end of the first connecting rod 56, which is in an inclined state, can abut against the second connecting rod 504. Then, the rotation of the second connecting rod 504 can drive the first connecting rod 56 to swing upward, and the disintegrating rod... 4. The rod can swing downwards and strike the mud cake at the corresponding position. At the same time, the return torsion spring 222 undergoes elastic deformation. When the second connecting rod 504 continues to rotate and separates from the first connecting rod 56, the elastic restoring force of the return torsion spring 222 can drive the breaking rod 4 to swing upwards. At the same time, the first connecting rod 56 swings downwards and continues to abut against the support plate 58 until the drive shaft 501 drives the second connecting rod 504 to abut against the first connecting rod 56 again. Then the breaking rod 4 can swing downwards again to strike. Finally, as the drive shaft 501 rotates, the breaking rod 4 at the mud cake position can continuously swing up and down to strike, thereby completing the mud cake breaking operation.

[0047] As the filter press body 11 discharges sludge from the next filter plate, the drive motor 53 can move the sliding seat 52 to the position of the first connecting rod 56 at the next sludge cake location, thereby driving the breaking rod 4 at that position to crush the sludge cake. Finally, when all the filter plates on the filter press body 11 have completed the sludge discharge operation, the various positions on the conveyor belt 3 can be filled with the crushed sludge cake. At the same time, since the drive shaft 501 only drives the first connecting rod 56, which is in an inclined state, to rotate each time, while the other first connecting rods 56 remain stationary, precise crushing of the sludge cake can be achieved. This also avoids meaningless oscillation and energy consumption when multiple breaking rods 4 work at the same time, thereby reducing unnecessary power consumption.

[0048] After all the mud cakes have been unloaded, the drive motor 53 drives the sliding seat 52 to move towards the side closer to the driving bevel gear 61. Then, the drive rod 703 on the sliding seat 52 passes through the guide sleeve 5021 and comes into contact with the driving bevel gear 61, thereby pushing the driving bevel gear 61 to mesh with the driven bevel gear 311, and the return spring 702 is stretched. At this time, the reduction motor 503 is started. After the reduction motor 503 drives the drive shaft 501 to rotate, the drive shaft 501 can drive the transmission roller 31 to rotate through the driving bevel gear 61 and the driven bevel gear 311, thereby driving the transmission belt 3 to start the transmission. Finally, the broken mud cakes can be transported out by the transmission belt 3 driven by the reduction motor 503.

[0049] This allows for the breaking up of the mud cake during unloading, thus facilitating efficient use of transport space.

Claims

1. A filter press for easy discharge of filter cake, comprising a frame (1), a filter press body (11) mounted on the frame (1) and having multiple filter plates, and a discharge port (12) located on the underside of the filter press body (11), characterized in that: Four uprights (2) supported on the ground are provided on the lower side of the frame (1). A conveyor belt (3) is provided between the uprights (2) and below the discharge port (12). Both ends of the conveyor belt (3) are provided with drive rollers (31) whose ends are rotatably connected to the uprights (2). A support steel plate (21) is provided between the multiple uprights (2) and inside the lower side of the conveyor belt (3). A connecting shaft (22) with its extension direction parallel to the extension direction of the conveyor belt (3) is provided between two uprights (2). Multiple dispersing rods (4) are provided on the connecting shaft (22) and evenly spaced along the extension direction of the connecting shaft (22). The lower end of the dispersing rod (4) is provided with a sleeve on the connecting shaft (22). The rod sleeve (41) is provided with a drive assembly (5) between the multiple columns (2) for driving the dispersing rod (4) to strike the mud cake falling on the conveyor belt (3); a connecting plate (221) is fixed on the connecting shaft (22) and located on one side of the rod sleeve (41), and a return torsion spring (222) is sleeved on the connecting shaft (22) between the connecting plate (221) and the rod sleeve (41). When the return torsion spring (222) is in its natural state, the dispersing rod (4) is in a vertically upward position; the drive assembly (5) includes a crossbar (51) located between two columns (2) on one side of the connecting shaft (22) and parallel to the connecting shaft (22), and a crossbar (51) located on the upper side of the crossbar (51) and along the crossbar (51). The sliding seat (52) is slidably connected in the extension direction; the drive motor (53) is mounted on the sliding seat (52); the drive gear (54) is mounted on the output shaft of the drive motor (53); the rack (55) is mounted on one side of the crossbar (51) and meshes with the drive gear (54); the first connecting rod (56) is mounted on the side of the sleeve (41) away from the dispersing rod (4); the connecting arm (57) is mounted on the side of the sliding seat (52) away from the drive motor (53) and extends vertically upward; the support plate (58) is mounted on the upper end of the connecting arm (57) and supports the tilting first connecting rod (56); and the first connecting rod (56) is mounted on one side of the support plate (58) and used to tilt away from the conveyor belt (3). The system includes a guide tilting arm (59), a drive shaft (501) located between two columns (2) and parallel to the connecting shaft (22), a mounting arm (502) located on the column (2) and rotatably connected to the end of the drive shaft (501), a reduction motor (503) located at one end of the drive shaft (501) and used to drive the drive shaft (501) to rotate, and multiple second links (504) located on the drive shaft (501) and corresponding to multiple first links (56); when the first link (56) tilts under the action of the guide tilting arm (59), the drive shaft (501) drives the second link (504) to rotate, causing the second link (504) to drive the tilted first link (56) to swing upward;The first connecting rod (56) is rotatably connected to a roller (561) for abutting against the side wall of the second connecting rod (504) at the end away from the rod sleeve (41); the end of the transmission roller (31) located at one end of the transmission belt (3) is keyed with a driven bevel gear (311); a spline shaft (6) is integrally provided at the end of the drive shaft (501) away from the geared motor (503); a drive bevel gear (61) for cooperating with the spline shaft (6) is sleeved on the spline shaft (6); and a sliding seat (52) is provided between the drive shaft (501) and the sliding seat (52). A sliding assembly (7) is provided to drive the driving bevel gear (61) to move back and forth along the spline shaft (6); the sliding assembly (7) includes a fixed disk (701) disposed at one end of the spline shaft (6) away from the driving bevel gear (61), a return spring (702) sleeved on the spline shaft (6), and a drive rod (703) with one end connected to the sliding seat (52) and the other end abutting against the end face of the driving bevel gear (61). One end of the return spring (702) is connected to the driving bevel gear (61) and the other end is connected to the fixed disk (701).

2. The filter press for easy cake discharge according to claim 1, characterized in that: A downwardly inclined guide plate (23) is provided between the multiple columns (2) and above both sides of the conveyor belt (3). An operation port (231) for the dispersing rod (4) to pass through is provided on the guide plate (23) located near the dispersing rod (4).

3. A filter press for easy cake discharge according to claim 1, characterized in that: The end of the dispersing rod (4) away from the rod sleeve (41) is provided with a plurality of dispersing arms (42) evenly spaced along the extension direction of the dispersing rod (4).

4. A filter press for easy cake discharge according to claim 1, characterized in that: The crossbar (51) has a dovetail groove (511) extending in a direction parallel to the extension direction of the crossbar (51), and the sliding seat (52) has a dovetail slider (521) embedded in the dovetail groove (511) on its lower side.

5. A filter press for easy cake discharge according to claim 1, characterized in that: The drive rod (703) has a rounded tip (7031) at the end away from the sliding seat (52).

6. A filter press for easy cake discharge according to claim 1, characterized in that: The mounting arm (502) is provided with a guide sleeve (5021) through which the drive rod (703) passes.

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