A tower filter press

Abstract

The invention provides a tower filter press, which belongs to the technical field of filter pressing. The tower filter press comprises a shell, a telescopic push rod, a filter press box and a pressing plate. The shell is located in the tower body and one side of the shell is connected with a material box. The filter press box is located inside the shell. A plurality of filter press cavities distributed in a vertical direction are arranged in the filter press box. The telescopic push rod is located on the shell and is used to drive the filter press box to reciprocate in the shell and the material box. A feeding port which is respectively connected with a plurality of filter press cavities is opened on the side wall of the filter press box close to the material box. A rotating shaft is rotatably installed on both sides of the filter press cavity. An annular filter cloth is arranged between the two rotating shafts. The bottom of the feeding port is flush with the upper surface of the annular filter cloth. There are a plurality of pressing plates which are respectively located on the tops of a plurality of filter press cavities. Resetting components for resetting the pressing plates after being pressed down are arranged on both sides of the front and rear walls of the plurality of pressing plates. The filter material can be evenly laid on the surface of the filter cloth, thereby avoiding the influence of uneven laying thickness on the material filtering effect.

Description

Technical Field

[0001] The invention belongs to the technical field of filter pressing, and in particular relates to a tower filter press. Background Art

[0002] In the filter press structure, there is a vertical filter press, also called a tower filter press, which is a device that squeezes materials in the up and down directions to achieve solid-liquid separation. Usually, a conveying pipe and a pump are used to pump the material into the filter press chamber. However, when the viscosity of the material is high or the fluidity is poor, feeding is very difficult.

[0003] A vertical filter press is disclosed in a Chinese patent with the authorization announcement number CN113648689B, including: a feed mechanism, having a feed hopper and a baffle plate, the bottom of the feed hopper is provided with a discharge port, the baffle plate can block the discharge port; a filter press mechanism, arranged on one side of the feed mechanism, including a filter press frame and a filter press mold, the filter press frame includes an upper beam plate and a lower beam plate, the filter press mold includes an upper mold assembly and a lower mold assembly, the upper mold assembly is fixed to the upper beam plate, the lower mold assembly is located on the lower beam plate, the lower mold assembly forms a filter press cavity, the upper mold assembly can cover the filter press cavity; a translation mechanism, having a first oil cylinder driving the lower mold assembly to translate, the filter press cavity can be located below the discharge port. It can adapt to the viscosity or fluidity difference of the material, facilitate feeding, and improve the versatility of the vertical filter press.

[0004] When feeding the existing filter press, the material flows into the filter press chamber through the feed hopper. This feeding method may cause the material to pile up in a cone shape on the filter cloth surface. Especially when the filter press area is large, the material cannot be evenly laid in the filter press chamber. The uneven thickness of the material laying will have a certain impact on the material filtration effect. In addition, this feeding method is only suitable for single-layer filter press, not for multi-layer filter press. Summary of the invention

[0005] The object of the present invention is to provide a tower filter press, aiming to solve the problem that the existing feeding method of the existing filter press in the prior art makes it impossible to evenly lay the material in the filter press chamber, the uneven thickness of the material laying will have a certain impact on the material filtration effect, and the feeding method is only suitable for single-layer filtration, not for multi-layer filtration.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a tower filter press, comprising a tower body, a downward pressure assembly located at the top of the tower body, a feeding assembly located at one side of the tower body and a filter press module located inside the tower body, wherein the feeding assembly comprises a material box and a hopper located at the top thereof.

[0007] The filter press module includes a shell, a telescopic push rod, a filter press box and a pressure plate. The shell is located in the tower body and one side is connected to the material box. The filter press box is located inside the shell. A plurality of filter press chambers distributed along the vertical direction are arranged in the filter press box. The telescopic push rod is located on the shell, and is used to drive the filter press box to reciprocate in the shell and the material box. A feeding port connected to the plurality of filter press chambers is provided on the side wall of the filter press box close to the material box. A rotating shaft is rotatably installed on both sides of the filter press chamber. An annular filter cloth is provided between the two rotating shafts. The bottom of the feeding port is flush with the upper surface of the annular filter cloth. There are multiple pressure plates and they are respectively located on the tops of the plurality of filter press chambers. A transmission assembly for driving the synchronous movement of the plurality of pressure plates is provided in the middle of the front and rear walls. Resetting assemblies for resetting the plurality of pressure plates after being pressed down are provided on both sides of the front and rear walls.

[0008] The effect is that by driving the filter press box into the material box and driving the annular filter cloth to rotate to cooperate with the feeding, the filter material can be evenly laid on the surface of the filter cloth, avoiding the influence of uneven laying thickness on the material filtration effect, and at the same time realizing the feeding of multi-layer filtration, thereby improving the filtration efficiency.

[0009] The top of the front and rear walls of the filter press chamber is provided with a discharge port whose bottom is flush with the upper surface of the annular filter cloth. The front and rear walls of the filter press box are provided with sealing plates. The two ends of the rotating shaft pass through the filter press box and are respectively slidably sleeved on the two sealing plates. The sealing plates are provided with limiting grooves. The front and rear walls of the shell are equipped with telescopic pull rods for driving the sealing plates to move. A discharge plate is provided on the top of the side of the annular filter cloth away from the material box. The side of the discharge plate close to the material box is a peak-shaped protrusion that gradually decreases from the middle to both sides. A support plate is installed on the top of the inner ring wall of the annular filter cloth, and the support plate is fixedly connected to the inner wall of the filter press box.

[0010] The effect is that by setting the discharge port, the discharge plate and the sealing plate, the discharge port can be sealed during the filtration to prevent the material from flowing out during the filtration. When discharging the material, the annular filter cloth drives the material to flow to the discharge plate, and the material flows to the discharge port under the action of the peak-shaped protrusion of the discharge plate to complete the discharging, thereby realizing automatic discharging of the material.

[0011] A baffle is provided in the feeding port, the bottom of the baffle is hinged to the feeding port and a torsion spring is provided at the hinge to prevent the material from flowing out of the filter press chamber after the feeding is completed. A feeding shovel is installed on the side of the filter press box close to the material box. There are multiple feeding shovels and they are respectively located under multiple feeding ports.

[0012] A protrusion is provided in the middle of the sealing plate to form a cavity for accommodating the transmission assembly between it and the filter press box. Two reset assemblies are fixedly installed on both sides of the sealing plate respectively. A driving mechanism for driving the pressure plate to swing back and forth is provided on the side of the two sealing plates away from the filter press box.

[0013] The transmission assembly includes a vertically arranged connecting shaft and a limit plate fixedly installed on the pressure plate. The outer wall of the connecting shaft is fixedly installed with a plurality of clamping blocks evenly distributed along its axial direction. A clamping groove is provided in the middle of the clamping block, and a connecting groove is provided on the top of the limit plate. The limit plate is installed on the clamping block through the cooperation of the connecting groove and the clamping groove.

[0014] The effect is that, by setting the transmission component, multiple pressing plates can be synchronously lowered to filter the material, thereby realizing multi-layer filtering of the device and improving the filtering efficiency.

[0015] Both reset assemblies include a connecting plate vertically arranged on the sealing plate and a supporting shaft fixedly mounted on the pressure plate. A plurality of sliding grooves evenly distributed in the vertical direction are provided on the side wall of the connecting plate close to the filter press box. A slider is slidably sleeved inside the sliding groove. An elastic telescopic part is provided between the slider and the bottom of the sliding groove. The supporting shaft is slidably sleeved on the slider. The length of the supporting shaft away from the material box is shorter than the length of the supporting shaft close to the material box. A torsion spring is provided between the supporting shaft close to the material box and the slider.

[0016] The effect is that, by setting up a reset component, after the filtration and the annular filter cloth are cleaned, the pressure plate can be driven to reset to prepare for the next filtration, so that the device can continuously filter the material and improve the filtration efficiency.

[0017] The driving mechanism includes a driving member installed on the shell and a transmission shaft rotatably installed on the sealing plate. The transmission shaft is vertically arranged and transmission-connected with the output shaft of the driving member. A plurality of cams evenly distributed along its axial direction are fixedly mounted on the transmission shaft, and a through groove for the cam to pass through is opened on the sealing plate.

[0018] The effect is that after the filtration is completed, the pressure plate can be driven to swing back and forth, thereby breaking up the compacted material, making it convenient for the device to unload the material, and at the same time cleaning the annular filter cloth to prevent the material from sticking to the surface of the filter cloth after filtration, causing the filter cloth to become dirty and clogged.

[0019] The down-pressing assembly includes a hydraulic cylinder, a down-pressing rod and a transmission plate. The hydraulic cylinder is installed on the top of the tower body. The telescopic end of the hydraulic cylinder slides into the tower body and is fixedly connected to the top of the down-pressing rod. The bottom end of the down-pressing rod extends into the shell and is connected to the transmission plate. The transmission plate is arranged parallel to the pressure plate.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] By driving the filter press box into the material box and driving the annular filter cloth to rotate and cooperate with the feeding, the filter material can be evenly laid on the surface of the filter cloth, avoiding the influence of uneven laying thickness on the material filtration effect. At the same time, it can realize the feeding of multi-layer filtration, improve the filtration efficiency, and after the filtration is completed, it can drive the pressure plate to swing back and forth in the front and back directions, so as to break up the compacted material and facilitate the unloading of the device. At the same time, the annular filter cloth can be cleaned to avoid the material sticking to the surface of the filter cloth after filtration, causing the filter cloth to become dirty and blocked. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0023] Figure 1 It is a structural schematic diagram of the filter press in the present invention;

[0024] Figure 2 It is a schematic diagram of the installation structure of the filter press assembly and the feeding assembly in the present invention;

[0025] Figure 3 It is a structural schematic diagram of the filter press assembly in the present invention;

[0026] Figure 4 This is a schematic diagram of the installation structure of the filter pressure module in the present invention;

[0027] Figure 5 It is a structural schematic diagram of the filter pressure module in the present invention;

[0028] Figure 6 For the present invention Figure 5 The structural diagram at A in the middle;

[0029] Figure 7 For the present invention Figure 5 The structural diagram at B in the middle;

[0030] Figure 8 It is a schematic diagram of the main cross-section of the filter pressure module of the present invention;

[0031] Fig. 9 For the present invention Figure 8 Schematic diagram of the structure at C in the middle;

[0032] Fig.10 It is a schematic diagram of the installation structure of the blanking plate in the present invention.

[0033] In the figure: 1, tower body; 2, feeding assembly; 21, hopper; 22, material box; 3, pressing assembly; 31, pressing rod; 32, transmission plate; 4, filter press module; 41, shell; 411, telescopic pull rod; 42, telescopic push rod; 43, filter press box; 431, filter press chamber; 432, rotating shaft; 433, annular filter cloth; 434, support plate; 435, feeding shovel plate; 436, feeding plate; 437, feeding port; 438, baffle Plate; 44, sealing plate; 441, protrusion; 442, limit groove; 45, reset assembly; 451, connecting plate; 452, slide groove; 453, elastic telescopic member; 454, slider; 461, driving member; 462, transmission shaft; 463, cam; 47, pressure plate; 471, support shaft; 48, discharge port; 49, transmission assembly; 491, connecting shaft; 492, block; 493, limit plate; 494, connecting groove. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] See also Figure 1-Figure 10 The present invention provides the following technical solution: a tower filter press, comprising a tower body 1, a feeding assembly 2 installed in the middle of one side of the tower body 1, a pressing assembly 3 installed on the top of the tower body 1, and a filter press module 4 installed inside the tower body 1, the feeding assembly 2 comprises a material box 22 and a hopper 21 located on the top thereof, and one end of the material box 22 is connected to the filter press module 4.

[0036] refer to Figure 3-Figure 5 , Figure 8 and Fig. 9As shown, the filter press module 4 includes a shell 41, a telescopic push rod 42, a filter press box 43 and a pressing plate 47. The shell 41 is located in the tower body 1 and one side is connected to the material box 22. The filter press box 43 is located inside the shell 41. A plurality of filter press cavities 431 distributed in the vertical direction are arranged in the filter press box 43. The telescopic push rod 42 is located on the side of the shell 41 away from the material box 22. The telescopic end of the telescopic push rod 42 slides into the shell 41 and is connected to the filter press box 43 and drives the filter press box 43 to reciprocate in the shell 41 and the material box 22. The side wall of the filter press box 43 close to the material box 22 is provided with a plurality of filter press cavities 431 respectively connected to the material box 22. A feeding port 437 is connected, and a rotating shaft 432 is rotatably installed between the front and rear walls on both sides of the filter press chamber 431. The rotating shaft 432 is driven to rotate by a motor installed on the filter press box 43. An annular filter cloth 433 is arranged between the two rotating shafts 432. The bottom of the feeding port 437 is flush with the upper surface of the annular filter cloth 433. There are multiple pressing plates 47 and they are respectively located at the top of multiple filter press chambers 431. A transmission component 49 for driving the synchronous movement of the multiple pressing plates 47 is arranged in the middle of the front and rear walls, and a reset component 45 for resetting the pressing plates 47 after being pressed down is arranged on both sides of the front and rear walls.

[0037] refer to Figure 2 , Figure 5 and Figure 8 As shown, a discharge port 48 whose bottom is flush with the upper surface of the annular filter cloth 433 is provided at the top of the front and rear sides of the filter press chamber 431, and a sealing plate 44 is provided on the front and rear walls of the filter press box 43 for sealing the discharge port 48. Both ends of the rotating shaft 432 pass through the filter press box 43 and are slidably sleeved on the sealing plate 44. A limiting groove 442 is provided on the sealing plate 44. A telescopic pull rod 411 is installed on the front and rear walls of the shell 41. The telescopic end of the telescopic pull rod 411 slides into the shell 41 and is slidably connected to the limiting groove 442, thereby driving the sealing plate 44 to move forward and backward. A discharge plate 436 is provided on the top of the side of the annular filter cloth 433 away from the material box 22, and the side of the discharge plate 436 close to the material box 22 is a peak-shaped protrusion that gradually decreases from the middle to both sides. A support plate 434 is installed on the top of the inner ring wall of the annular filter cloth 433. The support plate 434 is fixedly connected to the inner wall of the filter press box 43 for supporting the annular filter cloth 433 during filtration.

[0038] refer to Fig. 9 As shown, a baffle plate 438 is provided in the feeding port 437, the bottom of the baffle plate 438 is hinged to the feeding port 437 and a torsion spring is provided at the hinge to prevent the material from flowing out of the filter press chamber 431 after the feeding is completed, and a feeding shovel plate 435 is installed on the side of the filter press box 43 close to the material box 22, and there are multiple feeding shovel plates 435 and they are respectively located under the multiple feeding ports 437.

[0039] refer to Figure 2 , Figure 3 , Figure 5-Figure 7As shown, a protrusion 441 is provided in the middle of the sealing plate 44, so that a cavity is formed between it and the filter press box 43 for accommodating the transmission assembly 49, and two reset assemblies 45 are respectively fixedly installed on both sides of the sealing plate 44. A driving mechanism is provided on the side of the two sealing plates 44 away from the filter press box 43, which is used to drive the pressure plate 47 to swing back and forth.

[0040] refer to Figure 5 and Figure 7 As shown, the transmission assembly 49 includes a vertically arranged connecting shaft 491 and a limit plate 493 fixedly mounted on the pressure plate 47, a plurality of clamping blocks 492 evenly distributed along its axial direction are fixedly mounted on the outer wall of the connecting shaft 491, a clamping groove is provided in the middle of the clamping block 492, a connecting groove 494 is provided on the top of the limit plate 493, and the limit plate 493 is mounted on the clamping block 492 through the cooperation of the connecting groove 494 and the clamping groove.

[0041] refer to Figure 5 and Figure 6 As shown, the two reset assemblies 45 each include a connecting plate 451 vertically arranged on the sealing plate 44 and a support shaft 471 fixedly mounted on the pressure plate 47, a plurality of slide grooves 452 evenly distributed in the vertical direction are opened on the side wall of the connecting plate 451 close to the filter press box 43, a slider 454 is slidably sleeved inside the slide groove 452, an elastic telescopic member 453 is provided between the slider 454 and the bottom of the slide groove 452, the elastic telescopic member 453 is a spring telescopic rod, and the support shaft 471 is slidably sleeved on the slider 454, wherein the length of the support shaft 471 away from the material box 22 is shorter than the length of the support shaft 471 close to the material box 22, and a torsion spring is provided between the support shaft 471 close to the material box 22 and the slider 454.

[0042] refer to Figure 2 and Figure 3 As shown, the driving mechanism includes a driving member 461 installed on the shell 41 and a transmission shaft 462 rotatably installed on the sealing plate 44. The driving member 461 is a motor. The transmission shaft 462 is vertically arranged and is transmission-connected to the output shaft of the driving member 461. A plurality of cams 463 evenly distributed along the axial direction thereof are fixedly mounted on the transmission shaft 462, and a through groove for the cam 463 to pass through is opened on the sealing plate 44.

[0043] refer to Figure 1-Figure 3 As shown, the pressing assembly 3 includes a hydraulic cylinder, a pressing rod 31 and a transmission plate 32. The hydraulic cylinder is installed on the top of the tower body 1, and its telescopic end slides into the interior of the tower body 1 and is fixedly connected to the top of the pressing rod 31. The bottom end of the pressing rod 31 extends into the shell 41 and is connected to the transmission plate 32. The transmission plate 32 is arranged parallel to the pressure plate 47.

[0044] The implementation principle of the embodiment of the present invention is as follows: when the material is filtered, the material is poured into the hopper 21 and enters the material box 22 from the hopper 21, and the telescopic push rod 42 is started to drive the filter press box 43 to move left and enter the material box 22. At this time, the baffle 438 on the filter press box 43 falls into the filter press box 43 under the action of the material and compresses the torsion spring connected thereto. The material enters the annular filter cloth 433 in the filter press chamber 431 from the feeding port 437 under the action of the feeding shovel plate 435. At the same time, the motor drives the rotating shaft 432 to rotate, and the annular filter cloth 433 rotates together with the rotating shaft 432. The material is evenly laid on the annular filter cloth 433. At this time, the telescopic push rod 42 is controlled to contract, so that it drives the filter press box 43 to move right and reset. At this time, the baffle 438 is reset under the action of the torsion spring, and the pressing component 3 is started to drive the pressing plate 47 to descend, and the slider 454 is driven by the support shaft 471 to compress the elastic telescopic part 453 and filter the material. Since a transmission component 49 is installed between the front and rear walls of the multiple pressing plates 47, the multiple pressing plates 47 descend together, thereby forming a multi-layer filter press, and the filtered water flows to the bottom of the filter press chamber 431.

[0045] After the filtration is completed, the telescopic pull rod 411 is started to pull the two sealing plates 44 away from the filter press box 43. Since the support shaft 471 on one side of the pressure plate 47 is shorter than the support shaft 471 on the other side, as the sealing plate 44 drives the connecting plate 451 away from the filter press box 43, the shorter support shaft 471 is separated from the slider 454. At this time, the elastic telescopic member 453 connected thereto drives the slider 454 to reset. At the same time, under the action of the pressing assembly 3, the end of the pressure plate 47 that is separated from the slider 454 on the pressure plate 47 tilts downward and contacts the upper surface of the annular filter cloth 433, and compresses the torsion spring on the longer support shaft 471, and starts the driving member 461 to pass through The transmission shaft 462 drives the cam 463 to rotate, and through the action of the cams 463 at the front and rear ends of the pressing plate 47, the pressing plate 47 reciprocates relative to the annular filter cloth 433, so that the pressing plate 47 crushes the compacted material on the annular filter cloth 433. As the annular filter cloth 433 moves, the crushed material is discharged from the discharge port 48 on the front and rear walls of the filter press chamber 431 under the action of the discharge plate 436. At the same time, the upper and lower surfaces of the annular filter cloth 433 begin to flip, and the surface carrying the material moves to the bottom of the filter press chamber 431, where it is soaked by water at the filter press, so that the material remaining on the surface of the annular filter cloth 433 falls off into the filtrate, completing the cleaning of the annular filter cloth 433.

[0046] After cleaning is completed, the pressing assembly 3 is started to rise and reset. As the transmission plate 32 rises, the torsion spring on the longer support shaft 471 drives the pressure plate 47 to return from an inclined state to a horizontal state. Then, as the transmission plate 32 continues to rise, the pressure plate 47 rises and resets under the drive of the elastic telescopic member 453 on the reset assembly 45. Finally, the telescopic end of the telescopic rod 411 is controlled to be ejected, so that it drives the sealing plate 44 to move toward the filter press box 43. At this time, the transmission shaft 462 that is detached from the slider 454 is re-sleeved in the slider 454.

[0047] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A tower filter press, comprising a tower body (1) and a pressing assembly (3) located at the top of the tower body (1), characterized in that: It also includes a feeding assembly (2) located on one side of the tower body (1) and a filter press module (4) located inside the tower body (1), wherein the feeding assembly (2) includes a material box (22) and a material hopper (21) located on the top thereof; The filter press module (4) comprises a housing (41), a telescopic push rod (42), a filter press box (43) and a pressure plate (47); the housing (41) is located in the tower body (1) and one side of the housing (41) is connected to the material box (22); the filter press box (43) is located inside the housing (41); a plurality of filter press cavities (431) distributed in a vertical direction are provided in the filter press box (43); the telescopic push rod (42) is located on the housing (41) and is used to drive the filter press box (43) to reciprocate in the housing (41) and the material box (22); a side wall of the filter press box (43) close to the material box (22) is provided with filter press cavities (431) which are respectively connected to the plurality of filter press cavities (431) and the filter press cavities (431) distributed in a vertical direction; A feeding port (437) connected to the filter chamber (431), rotating shafts (432) are rotatably mounted on both sides of the filter press chamber (431), an annular filter cloth (433) is arranged between the two rotating shafts (432), the bottom of the feeding port (437) is flush with the upper surface of the annular filter cloth (433), there are a plurality of pressing plates (47) and they are respectively located at the tops of the plurality of filter press chambers (431), a transmission assembly (49) for driving the plurality of pressing plates (47) to move synchronously is arranged in the middle of the front and rear walls of the plurality of pressing plates (47), and a reset assembly (45) for resetting the plurality of pressing plates (47) after being pressed down is arranged on both sides of the front and rear walls; The tops of the front and rear walls of the filter press chamber (431) are provided with discharge ports (48) whose bottoms are flush with the upper surface of the annular filter cloth (433); the front and rear walls of the filter press box (43) are both provided with sealing plates (44); the two ends of the rotating shaft (432) pass through the filter press box (43) and are respectively slidably sleeved on the two sealing plates (44); the sealing plates (44) are provided with limiting grooves (442); the front and rear walls of the housing (41) are both provided with telescopic pull rods (411) for driving the sealing plates (44) to move; a discharge plate (436) is provided on the top of the side of the annular filter cloth (433) away from the material box (22); the side of the discharge plate (436) close to the material box (22) is a peak-shaped protrusion that gradually decreases from the middle to the two sides; a support plate (434) is installed on the top of the inner ring wall of the annular filter cloth (433); the support plate (434) is fixedly connected to the inner wall of the filter press box (43); A baffle (438) is provided in the feeding port (437), the bottom of the baffle (438) is hinged to the feeding port (437), and a torsion spring is provided at the hinge to prevent the material from flowing out of the filter press chamber (431) after the feeding is completed. A feeding shovel plate (435) is installed on one side of the filter press box (43) close to the material box (22), and there are multiple feeding shovel plates (435) which are respectively located below the multiple feeding ports (437); A protrusion (441) is provided in the middle of the sealing plate (44), so that a cavity for accommodating the transmission assembly (49) is formed between the sealing plate (44) and the filter press box (43). Two reset assemblies (45) are respectively fixedly mounted on both sides of the sealing plate (44). A driving mechanism for driving the pressing plate (47) to swing back and forth is provided on one side of the two sealing plates (44) away from the filter press box (43). The two reset assemblies (45) each comprise a connecting plate (451) vertically arranged on the sealing plate (44) and a supporting shaft (471) fixedly mounted on the pressing plate (47); a plurality of sliding grooves (452) evenly distributed in the vertical direction are provided on the side wall of the connecting plate (451) close to the filter press box (43); a slider (454) is slidably sleeved in the interior of the sliding groove (452) in an upward and downward manner; an elastic telescopic member (453) is provided between the slider (454) and the bottom of the sliding groove (452); the supporting shaft (471) is slidably sleeved on the slider (454); the length of the supporting shaft (471) away from the material box (22) is shorter than the length of the supporting shaft (471) close to the material box (22); a torsion spring is provided between the supporting shaft (471) close to the material box (22) and the slider (454); the torsion spring on the longer supporting shaft (471) drives the pressing plate (47) to return from an inclined state to a horizontal state; The driving mechanism comprises a driving member (461) mounted on a housing (41) and a transmission shaft (462) rotatably mounted on a sealing plate (44); the transmission shaft (462) is vertically arranged and drivingly connected to an output shaft of the driving member (461); a plurality of cams (463) evenly distributed along an axial direction thereof are fixedly mounted on the transmission shaft (462); and a through slot for the cams (463) to pass through is provided on the sealing plate (44).

2. A tower filter press according to claim 1, characterized in that: The transmission assembly (49) comprises a vertically arranged connecting shaft (491) and a limiting plate (493) fixedly mounted on the pressure plate (47); a plurality of clamping blocks (492) evenly distributed along the axis direction thereof are fixedly mounted on the outer wall of the connecting shaft (491); a clamping groove is provided in the middle of the clamping block (492); a connecting groove (494) is provided at the top of the limiting plate (493); and the limiting plate (493) is mounted on the clamping block (492) through the coordinated movement of the connecting groove (494) and the clamping groove.

3. A tower filter press according to claim 1, characterized in that: The pressing assembly (3) comprises a hydraulic cylinder, a pressing rod (31) and a transmission plate (32). The hydraulic cylinder is mounted on the top of the tower body (1). The telescopic end of the hydraulic cylinder slides into the interior of the tower body (1) and is fixedly connected to the top end of the pressing rod (31). The bottom end of the pressing rod (31) extends into the housing (41) and is connected to the transmission plate (32). The transmission plate (32) and the pressing plate (47) are arranged in parallel.

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