A shipborne filter press and volume reduction device and its application method

Abstract

This invention discloses a shipborne filter press for volume reduction and its application method, belonging to the field of sludge filter press technology. It includes: a filter press unit, a multi-directional motion unit, a positioning unit, and a cleaning unit; the filter press unit comprises two sets of filter presses arranged in parallel; each filter press includes at least: a frame, and several filter plates slidably connected to the frame; the multi-directional motion unit is located above the filter press unit; the positioning unit is located at the output end of the multi-directional motion unit; the cleaning unit is located between the positioning components. In this invention, each filter press unit is equipped with a multi-directional motion unit, a positioning unit, and a cleaning unit, allowing the two sets of filter presses in the filter press unit to work and clean alternately, maximizing the utilization of equipment resources; while one filter press is cleaning, the other filter press continues other operations, thereby improving overall production efficiency.

Description

Technical Field

[0001] This invention belongs to the field of sludge dewatering technology, specifically relating to a shipborne dewatering and volume reduction device and its application method. Background Technology

[0002] In the practice of river dredging and environmental protection, the treatment and volume reduction of silt have always been key aspects. Traditional filter presses, as important equipment for solid-liquid separation, are widely used in the treatment of river silt.

[0003] River silt typically consists of fine particles, organic matter, and water, exhibiting complex and varied physical and chemical properties. A filter press applies pressure, forcing water out of the silt through a filter medium (such as filter cloth), while solid particles are trapped on the filter cloth to form a silt cake. During this process, the silt's viscosity, particle size, water content, and the material and structure of the filter medium all significantly influence the formation and detachment of the silt cake.

[0004] Highly viscous sludge tends to form a firm cake on the filter plate, making it difficult to detach automatically. Uneven particle size and distribution within the sludge can lead to uneven cake distribution on the filter plate, with some areas having thicker cakes that are difficult to remove. Both excessively high and low moisture content in the sludge can affect cake formation and detachment. Excessively high moisture content can result in a too-soft cake that is difficult to form a complete structure; while excessively low moisture content can make the cake too dry, increasing its adhesion to the filter plate. The problem of cake residue during plate unloading not only affects the filtration efficiency of the filter press but also poses challenges to equipment maintenance. Summary of the Invention

[0005] Purpose of the invention: In order to solve the above problems, the present invention provides a shipborne pressure filter reduction device and its application method.

[0006] Technical solution: A shipborne filter press and volume reduction device, comprising:

[0007] A filter press unit includes two sets of filter presses arranged in parallel; each filter press includes at least a frame and a plurality of filter plates slidably connected to the frame; each filter plate is provided with handles on both sides; each filter press is set to different working states; the working states include a plate-pulling unloading state and a non-plate-pulling unloading state;

[0008] A multi-directional motion unit is disposed above the filter press unit; the multi-directional motion unit is used to realize movement in the X, Y, and Z directions;

[0009] A positioning unit is located at the output end of a multi-directional motion unit; the positioning unit includes: a mounting component, and positioning components mirror-disposed on the bottom surface of the mounting component; the spacing between the positioning components is adjustable;

[0010] A cleaning unit is disposed between the positioning components; the cleaning unit includes: a plurality of lifting components connected to the mounting component, and a cleaning component connected to the lifting components and mirror-arranged.

[0011] During the unloading of the filter plate, driven by the multi-directional motion unit, the positioning component is positioned close to the current filter plate and clamps and positions the handle of the current filter plate, separating the current filter plate from its adjacent filter plates.

[0012] While the positioning component continuously clamps and positions the handle of the current filter plate, the cleaning component is set to reciprocate up and down to clean the residual mud cake on the current filter plate under the drive of the lifting component.

[0013] In a further embodiment, the cleaning component includes:

[0014] The shielding box has an opening on one side near the current filter plate; the bottom of the shielding box has an outlet.

[0015] The first bracket is disposed inside the shielding box along the length direction of the shielding box;

[0016] The second bracket has two ends that correspond to the transmission of the first bracket; a portion of the second bracket is placed outside the shielding box.

[0017] A driving element, the output end of which is connected to the second bracket; the driving element is used to drive the second bracket to rotate.

[0018] Several sets of cleaning components are arranged in an array on the second support along the circumferential direction of the second support.

[0019] In a further embodiment, the first support includes:

[0020] Two sets of support plates are vertically arranged; the support plates extend upward from a predetermined position at their bottom to form a connecting part;

[0021] Two sets of connecting rods are connected at both ends to the bottom of two sets of support plates; a hollow space is formed between the connecting rods and the support part; the hollow space is located above the output port.

[0022] In a further embodiment, the second support includes:

[0023] A drive shaft, the two ends of which are rotatably connected to the connecting part;

[0024] Two sets of rotating rings are respectively disposed at both ends of the drive shaft; the end of the cleaning component is connected to the rotating rings;

[0025] Multiple sets of support rods, one end of which is connected to the rotating ring and the other end of which is connected to the drive shaft.

[0026] In a further embodiment, the cleaning unit further includes: multiple sets of line cleaning components; wherein, the line cleaning components include:

[0027] The first mounting block and the second mounting block are respectively mounted on different rotating rings;

[0028] Multiple sets of parallel cleaning lines, with their two ends connected to the first mounting block and the second mounting block, respectively;

[0029] The cleaning line is taut as it cleans the remaining mud cake from the current filter plate.

[0030] In a further embodiment, the line-clearing component further includes:

[0031] A hollowed-out groove is formed inside the first mounting block;

[0032] The same number of rotating columns as the cleaning line are correspondingly disposed in the hollow groove and connected to one end of the cleaning line; one end of the rotating column extends outward through the first mounting block to form an extension;

[0033] A drive wheel is disposed on the extension;

[0034] A transmission rod is mounted on the first mounting block and meshes with the transmission wheel.

[0035] In a further embodiment, the positioning component includes:

[0036] A connecting plate is provided on the mounting component; the connecting plate is provided with a telescopic component.

[0037] A movable column, the top of which is slidably connected to the bottom surface of the connecting plate; the movable column is connected to the output end of the telescopic component;

[0038] A gripper is located at the bottom end of the movable column; the gripper is used to clamp and position the handle.

[0039] In the non-clamping positioning state, the telescopic member is configured to drive the gripper to move closer to or away from the handle.

[0040] In another technical solution, an application method based on a shipborne filter press volume reduction device as described above is provided, including the following steps:

[0041] The different filter presses in the filter press unit are controlled to be in different working states; the working states include the plate unloading state and the non-plate unloading state.

[0042] When one of the filter presses is in the unloading state, the multi-directional motion unit drives the positioning component to approach the current filter plate in the filter press; the positioning component clamps and positions the handle of the current filter plate, separating the current filter plate from its adjacent filter plates;

[0043] While the positioning component continuously clamps and positions the handle of the current filter plate, the cleaning component, driven by the lifting component, reciprocates to clean the residual mud cake on the current filter plate.

[0044] After the current filter plate is cleaned, the multi-directional motion unit moves the positioning component and the cleaning component closer to the next filter plate, positions, clamps, and pulls the next filter plate, and then cleans the next filter plate; repeat the above operation until all filter plates on the filter press are cleaned.

[0045] Beneficial effects:

[0046] (1) In this invention, each filter press unit is equipped with a multi-directional motion unit, a positioning unit and a cleaning unit, so that the two filter presses in the filter press unit can work and clean alternately, maximizing the use of equipment resources; while one filter press is cleaning, the other filter press continues to perform other operations, thereby improving the overall production efficiency.

[0047] (2) Compared with the existing plate-pulling trolley, the two sets of positioning components in the positioning unit of the present invention are integrated into one design. When the filter plate is pulled, it can ensure that the filter plate is subjected to uniform and synchronous clamping force on both sides, thus avoiding the problem of filter plate tilting caused by uneven pulling force on both sides.

[0048] (3) During the cleaning process, the positioning component continuously clamps and positions the filter plate. The positioning component can ensure that the filter plate maintains a fixed position and posture during the cleaning process, which helps the cleaning unit to act accurately on the filter plate, thereby improving the cleaning accuracy and consistency. Attached Figure Description

[0049] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0050] Figure 2 This is a structural diagram of the positioning unit and the cleaning unit;

[0051] Figure 3 This is a schematic diagram of the gripper structure;

[0052] Figure 4 This is a structural diagram of the cleaning unit;

[0053] Figure 5 This is a structural diagram of the shielding box;

[0054] Figure 6 This is a cross-sectional view of the cleanup component;

[0055] Figure 7 This is a schematic diagram of the assembly structure of the first support, the second support, and the cleaning component;

[0056] Figure 8This is a structural diagram of the line cleaning component;

[0057] Figure 9 This is a partial structural diagram of the line cleaning component.

[0058] Figures 1 to 9 The components are labeled as follows: Filter press unit 1, frame 11, filter plate 12, handle 13, multi-directional motion unit 2, positioning unit 3, mounting part 31, positioning assembly 32, connecting plate 321, telescopic part 322, moving column 323, gripper 324, cleaning unit 4, lifting part 41, cleaning assembly 42, shielding box 421, output port 4211, first bracket 422, support plate 4221, connecting part 4222, connecting rod 4223, second bracket 423, drive shaft 4231, rotating ring 4232, support rod 4233, cleaning part 424, line cleaning assembly 43, first mounting block 431, second mounting block 432, cleaning line 433, hollow groove 434, rotating column 435, drive wheel 436, and drive rod 437. Detailed Implementation

[0059] Example 1

[0060] This embodiment provides a shipborne filter press and volume reduction device, including: a filter press unit 1, a multi-directional motion unit 2, a positioning unit 3, and a cleaning unit 4.

[0061] The filter press unit 1 includes two sets of filter presses arranged side by side. The filter presses are diaphragm filter presses. An operating platform is provided between the filter presses for operators to inspect their operation. Each filter press includes at least a frame 11 and several filter plates 12 slidably mounted on the frame 11. Each filter plate 12 has handles 13 on both sides. The filter press has at least the following operating states: tightening the filter plates 12, feeding and pressing, loosening the filter plates 12, and unloading by pulling the plates; that is, the operating states of the filter press can be summarized as either a plate-pulling unloading state or a non-plate-pulling unloading state. In this embodiment, each filter press is controlled to be in either the plate-pulling unloading state or the non-plate-pulling unloading state.

[0062] A multi-directional motion unit 2 is positioned above the filter press unit 1. The multi-directional motion unit 2 is used to realize movement in the X, Y, and Z directions. In this embodiment, the X, Y, and Z directions are mutually perpendicular. The X direction is set to the length direction of the filter press, the Y direction is perpendicular to the X direction, and the Z direction is vertically perpendicular to the ground. Figure 1 As shown, the multi-directional motion unit 2 includes: a gantry frame positioned above the filter press, and X-axis, Y-axis, and Z-axis motion components positioned on the gantry frame. The X-axis, Y-axis, and Z-axis motion components are linear motion modules, which are existing technologies and will not be described in detail here.

[0063] Positioning unit 3 is located at the output end of multi-directional motion unit 2, meaning that multi-directional motion unit 2 drives positioning unit 3 to move in the X, Y, and Z directions. Positioning unit 3 includes a mounting component 31 and two sets of positioning components 32 mirror-mounted on the bottom surface of the mounting component 31. The mounting component 31 serves as a support plate. The distance between the two sets of positioning components 32 is adjustable.

[0064] like Figure 2 As shown, the cleaning component 42 is installed between the two sets of positioning components 32. The cleaning unit 4 includes several sets of lifting components 41 (the lifting components 41 can be electric push rods or cylinders, etc.) installed on the bottom surface of the mounting component 31, and two sets of cleaning components 42 that are mirror-arranged and connected to the lifting components 41.

[0065] When the plate is unloading, under the drive of the multi-directional motion unit 2, the positioning component 32 is positioned close to the current filter plate 12 and clamps and positions the handle part 13 of the current filter plate 12, separating the current filter plate 12 from its adjacent filter plate 12.

[0066] While the positioning unit 3 continuously clamps and positions the handle 13 of the current filter plate 12, the cleaning component 42 is set to reciprocate and clean the residual mud cake on the current filter plate 12 under the drive of the lifting component 41.

[0067] The filter plate 12 remains stable during cleaning thanks to the clamping and positioning by the positioning component 32, preventing shaking and movement. This allows the cleaning component 42 to more effectively remove mud cake residue from the surface of the filter plate 12, improving the cleaning quality.

[0068] In addition, the two sets of filter presses are equipped with a multi-directional motion unit 2, a positioning unit 3, and a cleaning unit 4. By having the two sets of filter presses work and clean alternately, the utilization of equipment resources is maximized. While one filter press is cleaning, the other filter press continues to perform other operations, thereby improving overall production efficiency.

[0069] In the existing technology, the filter plate 12 is pulled by puller trolleys located on both sides of the filter plate 12. However, the puller trolleys on both sides are not a single structure, but are installed separately on both sides of the filter plate 12. Because they work independently and lack synchronization and coordination, the following problems often occur in actual operation: due to the inconsistent force or speed of the puller trolleys pulling the filter plate 12, the filter plate 12 is subjected to uneven force. This uneven force can cause the filter plate 12 to tilt or shift during movement, thereby affecting the accuracy and efficiency of unloading.

[0070] When filter plate 12 tilts, operators need to spend more time and effort adjusting its position to ensure it moves smoothly to the designated unloading location. This not only increases operational complexity but can also reduce the efficiency of the entire production line. Tilting filter plate 12 also exacerbates wear on the plate-pulling trolley and related equipment. Because filter plate 12 does not move smoothly but instead wobbles or bounces, this increases friction between the plate-pulling trolley and the filter plate 12, thus accelerating equipment wear and aging.

[0071] To address the aforementioned problems, in this embodiment, as follows: Figure 2 and 3 As shown, each positioning assembly 32 includes: a connecting plate 321, a telescopic member 322, a moving column 323, and a gripper 324. The connecting plate 321 is fixed to the bottom surface of the mounting member 31. The telescopic member 322 is provided on the bottom surface of the connecting plate 321, and the telescopic member 322 is an electric telescopic rod. The top surface of the moving column 323 is slidably connected to the bottom surface of the connecting plate 321, such as by using a slide rail or slider to achieve the sliding connection; the moving column 323 is connected to the output end of the telescopic member 322, and the telescopic member 322 drives the moving column 323 to slide. The gripper 324 is installed at the bottom end of the moving column 323. The gripper 324 is used to clamp and position the handle part 13. The gripper 324 includes two sets of clamping parts that contact the handle part 13, and the distance between the two sets of clamping parts is adjustable (such as by using gear and rack transmission, pneumatic or other means, which are existing technologies and will not be described in detail here) to achieve changes in the size of the positioning space.

[0072] In the non-clamping positioning state, the telescopic member 322 is configured to drive the gripper 324 to move closer to or further away from the handle portion 13. In the clamping positioning state, the gripper 324 continuously clamps the positioning handle portion 13, keeping the current filter plate 12 stable and stationary.

[0073] When the plate is unloading, the multi-directional motion unit 2 drives the positioning component 32 to move or descend to adjust its position and move to the vicinity of the current filter plate 12. The telescopic component 322 drives the gripper 324 to approach the handle 13 to clamp and position the plate handle 13. Then, the multi-directional motion unit 2 drives the positioning component 32 to move, causing the current filter plate 12 to separate from its adjacent filter plates 12.

[0074] In this embodiment, the two sets of positioning components 32 are integrated, ensuring that the filter plate 12 receives uniform and synchronous clamping force on both sides when it is pulled, thus avoiding the problem of the filter plate 12 tilting due to uneven pulling force on both sides. Through the integrated design, the filter plate 12 remains stable during movement, reducing the possibility of shaking and deviation, thereby improving the accuracy and efficiency of unloading. Because the filter plate 12 remains stable during movement, operators do not need to frequently adjust its position, simplifying the operation process and reducing labor intensity. The integrated positioning components 32 make the plate-pulling and unloading process smoother and more efficient, contributing to improved efficiency of the entire production line.

[0075] While the gripper 324 continuously holds and positions the handle 13 of the current filter plate 12, the position of the current filter plate 12 remains unchanged; the cleaning assembly 42 reciprocates under the drive of the lifting component 41 to perform cleaning. A stable filter plate 12 reduces areas missed during cleaning due to shaking or displacement; this helps ensure that all areas on the filter plate 12 are thoroughly cleaned. When the filter plate 12 remains stable, the cleaning assembly 42 moves more quickly and covers the entire surface of the filter plate 12; this helps shorten cleaning time and improve cleaning efficiency.

[0076] In the actual size design, the length of the handle part 13 is extended so that when the gripper 324 clamps and positions the handle part 13, the cleaning component 42 moves back and forth between the two sets of grippers 324 without hindering the cleaning work of the cleaning component 42.

[0077] like Figure 4 and Figure 5 As shown, the cleaning assembly 42 includes: a shielding box 421, a first support 422, a second support 423, a drive component, and several sets of cleaning components 424. The shielding box 421 has an opening on the side closest to the current filter plate 12. An output port 4211 is provided at the bottom of the shielding box 421, through which the cleaned mud cake falls.

[0078] like Figure 6 As shown, the first bracket 422 is installed inside the shielding box 421 along its length; both ends of the second bracket 423 are connected to the first bracket 422 in a transmission manner. A portion of the second bracket 423 is located outside the shielding box 421. The driving component is a drive motor, whose output end is connected to the second bracket 423 in a transmission manner to drive the second bracket 423 to rotate. Several sets of cleaning components 424 are arranged in an array on the second bracket 423 along its circumference. The cleaning components 424 are cleaning scrapers.

[0079] Specifically, such as Figure 7As shown, the first support 422 includes two sets of support plates 4221 and two sets of connecting rods 4223. The two sets of support plates 4221 are vertically arranged inside the shielding box 421; the support plates 4221 extend upwards from a predetermined position (such as the middle position) at their bottom to form connecting portions 4222. The two ends of each set of connecting rods 4223 are connected to the bottom of the two sets of support plates 4221 respectively. A hollow space is formed between the connecting rods 4223 and the support portions; the hollow space is located above the output port 4211. The cleaned mud cake can fall through the hollow space and will not accumulate inside the shielding box 421, thus avoiding affecting the rotation of the second support 423.

[0080] The second support 423 includes a drive shaft 4231, two sets of rotating rings 4232, and multiple sets of support rods 4233. Both ends of the drive shaft 4231 are rotatably connected to the connecting portions 4222 on both sides. Each rotating ring 4232 is connected to one end of the drive shaft 4231 via multiple sets of support rods 4233. A cleaning component 424 is disposed between the two sets of rotating rings 4232, and both ends of the cleaning component 424 are connected to the rotating rings 4232.

[0081] When cleaning the residual mud cake on the surface of the current filter plate 12, the lifting component 41 first drives the cleaning component 42 to reciprocate up and down for cleaning. Then, the driving component drives the transmission shaft 4231 to rotate, which in turn drives the rotating ring 4232 and the cleaning component 424 to rotate. After the cleaning component 424 rotates out of the shielding box 421, it contacts the surface of the mud cake on the filter plate 12 and scrapes off the mud cake, thus completing the cleaning of the mud cake on the current filter plate 12. The scraped mud cake falls off the shielding box 421 due to gravity, or is driven by the cleaning component 424 to fall from the output port 4211.

[0082] In the above technical solution, the cleaning component 424 and the mud cake are in surface contact. Although surface contact between the cleaning component 424 and the mud cake means a relatively large contact area, which helps the cleaning component 424 to apply force more effectively to remove the mud cake, the cleaning effect of surface contact is not ideal in some scenarios. For example, high-viscosity mud cakes may be more difficult to scrape off, while mud cakes with excessive water content may form a sliding layer, preventing the cleaning component 424 from effectively contacting and removing the mud cake. To solve this problem, the following technical solution is proposed:

[0083] Furthermore, such as Figure 6 and Figure 8 As shown, the cleaning unit 4 also includes multiple sets of line cleaning components 43. Each line cleaning component 43 includes a first mounting block 431, a second mounting block 432, and multiple sets of parallel cleaning lines 433. The first mounting block 431 and the second mounting block 432 are respectively mounted on different rotating rings 4232. The two ends of the multiple sets of parallel cleaning lines 433 are connected to the first mounting block 431 and the second mounting block 432, respectively. When cleaning residual mud cake on the current filter plate 12, the cleaning lines 433 are in a taut state.

[0084] By adding the cleaning line 433, the contact method between the cleaning component 424 and the mud cake changes from surface contact to a combination of surface and line contact. Compared to surface contact alone, the cleaning line 433 has a certain sharpness when dealing with high-viscosity mud cakes and mud cakes with excessive water content, generating stronger shearing force as the cleaning component 424 rotates. This shearing force helps to cut fibers or viscous substances in high-viscosity mud cakes, making them easier to scrape off. The cleaning line 433 penetrates the sliding layer of mud cakes with excessive water content; this penetration helps to break the sliding layer, allowing the cleaning component 424 to more effectively contact and remove the mud cake. The addition of the cleaning line 433 significantly improves the cleaning efficiency of the scraper for high-viscosity and excessively water-content mud cakes. This helps reduce cleaning time and labor costs, improving the overall operating efficiency of the equipment.

[0085] The material and surface treatment of cleaning line 433 reduce the adhesion of mud cake. By optimizing the material of cleaning line 433 (such as using abrasion-resistant, corrosion-resistant, and anti-adhesion materials), the residue of mud cake on the scraper is further reduced.

[0086] Furthermore, the line contact design reduces direct wear on the filter plate 12 caused by the cleaning elements 424. Since the cleaning lines 433 are typically made of wear-resistant materials and have a small contact area, they cause relatively little wear on the filter plate 12. This helps extend the service life of the filter plate 12 and reduces replacement costs.

[0087] The cleaning line 433 is kept under tension at all times, which is achieved using the following technical solution:

[0088] Furthermore, such as Figure 8 and Figure 9 As shown, the cleaning assembly 43 further includes: a hollowed-out groove 434, a rotating column 435, a transmission wheel 436, and a transmission rod 437. The hollowed-out groove 434 is formed inside the first mounting block 431. The number of rotating columns 435, transmission wheels 436, and transmission rods 437 are the same as those of the cleaning line 433. The rotating column 435 is mounted on the hollowed-out groove 434 (and rotatably connected to the first mounting block 431), and one end of the rotating column 435 is fixedly connected to the cleaning line 433. One end of the rotating column 435 extends outward through the first mounting block 431 to form an extension. The transmission wheel 436 is mounted on the extension. The transmission rod 437 is mounted on the first mounting block 431 and meshes with the transmission wheel 436.

[0089] When the tension of the cleaning line 433 needs to be adjusted, the transmission rod 437 is twisted, which drives the transmission wheel 436 to rotate, which in turn drives the rotating column 435 to rotate, which in turn drives the cleaning line 433 to move, thereby adjusting the tension of the cleaning line 433.

[0090] When the cleaning line 433 is under tension, it can make more effective contact with the cake and apply sufficient pressure to remove it. This enhanced contact pressure helps to break down fibers or viscous substances in the cake, especially for high-viscosity cakes.

[0091] The taut cleaning line 433 reduces slippage and misalignment during the cleaning process. This helps ensure that the cleaning line 433 remains in the correct position, thus removing the mud cake more accurately.

[0092] By adjusting the tension, it is ensured that the cleaning line 433 maintains a stable position during the scraper's movement. This helps reduce the risk of poor cleaning results or equipment damage due to misalignment of the cleaning line 433.

[0093] The adjustable tension allows the cleaning line 433 to adapt to mud cakes of different properties. For example, for harder mud cakes, the tension can be increased to improve the cleaning effect; while for softer mud cakes, the tension can be appropriately reduced to minimize damage to the equipment.

[0094] Example 2

[0095] This embodiment provides an application method based on a shipborne filter press and volume reduction device as described in Embodiment 1, including the following steps:

[0096] The different filter presses in the filter press unit 1 are controlled to be in different working states; the working states include the plate unloading state and the non-plate unloading state.

[0097] When one of the filter presses is in the unloading state, the multi-directional motion unit 2 drives the positioning component 32 to approach the current filter plate 12 in the filter press; the positioning component 32 clamps and positions the handle part 13 of the current filter plate 12, separating the current filter plate 12 from its adjacent filter plate 12.

[0098] While the positioning component 32 continuously clamps and positions the handle portion 13 of the current filter plate 12, the cleaning component 42, driven by the lifting component 41, reciprocates to clean the residual mud cake on the current filter plate 12.

[0099] After the current filter plate 12 is cleaned, the multi-directional motion unit 2 drives the positioning component 32 and the cleaning component 42 to approach the next filter plate 12, and after positioning, clamping and pulling the next filter plate 12, the next filter plate 12 is cleaned; the above operation is repeated until all the filter plates 12 on the filter press are cleaned.

Claims

1. A shipboard filter-press volume reduction plant, characterized in that, The utility model relates to a filter press system, comprising: a filter press unit, comprising two groups of filter presses arranged side by side; each filter press comprises a frame and a plurality of filter plates slidably connected to the frame; each filter plate is provided with a handle on both sides; each filter press is arranged in a different working state; the working state comprises a plate pulling and discharging state and a non-plate pulling and discharging state; a multi-directional motion unit arranged above the filter press unit; the multi-directional motion unit is used to realize X, Y and Z directional motion; a positioning unit arranged at the output end of the multi-directional motion unit; the positioning unit comprises a mounting member and a positioning assembly arranged on the bottom surface of the mounting member; the spacing between the positioning assemblies is adjustable; a cleaning unit arranged between the positioning assemblies; the cleaning unit comprises a plurality of lifting members connected to the mounting member and a plurality of cleaning assemblies connected to the lifting members and arranged in mirror image; when the plate pulling and discharging state is realized, the positioning assembly is arranged close to the current filter plate and clamps and positions the handle of the current filter plate under the drive of the multi-directional motion unit, so that the current filter plate is separated from the adjacent filter plate; when the positioning assembly continuously clamps and positions the handle of the current filter plate, the cleaning assembly is arranged to reciprocatingly lift and clean the residual mud cake on the current filter plate under the drive of the lifting member; the cleaning assembly comprises: a shielding box body provided with an opening on one side close to the current filter plate; the bottom of the shielding box body is provided with an output port; a first support arranged inside the shielding box body along the length direction of the shielding box body; a second support corresponding driving the first support at both ends; part of the second support is arranged outside the shielding box body; a drive member connected to the second support at the output end; the drive member is used to drive the second support to rotate; a plurality of cleaning members arranged on the second support along the circumferential direction of the second support; the first support comprises: two groups of support plates arranged vertically; the support plates extend upward from the predetermined position of the bottom to form a connecting portion; two groups of connecting rods corresponding connected to the bottom of the two groups of support plates at both ends; the connecting rods and the support portions form a hollow space; the hollow space is located above the output port; the second support comprises: a transmission shaft corresponding rotatably connected to the connecting portion at both ends; two groups of rotating rings corresponding arranged at both ends of the transmission shaft; the end of the cleaning member is connected to the rotating ring; a plurality of support rods connected to the rotating ring at one end and connected to the transmission shaft at the other end; the cleaning unit further comprises a plurality of wire cleaning assemblies; wherein, the wire cleaning assembly comprises: a first mounting block and a second mounting block respectively arranged on different rotating rings; a plurality of parallel cleaning wires connected to the first mounting block and the second mounting block at both ends; when the residual mud cake on the current filter plate is cleaned, the cleaning wire is in a tensioned state.

2. A shipboard filter-press volume reduction apparatus as claimed in claim 1, characterized in that the positioning assembly comprises: a connecting plate arranged on the mounting member; the connecting plate is provided with an extension member; a moving column slidably connected to the bottom surface of the connecting plate at the top end; the moving column is connected to the output end of the extension member; a clamping jaw arranged at the bottom end of the moving column; the clamping jaw is used to clamp and position the handle; In the non-clamping positioning state, the telescopic part is arranged to drive the clamping jaw to move close to or away from the handle part.

3. A shipboard filter-press volume reduction apparatus as claimed in claim 1, characterized in that, The wire cleaning assembly further comprises: The hollow groove is arranged in the interior of the first mounting block; The number of rotating columns is the same as that of the cleaning wires, and the rotating columns are arranged in the hollow groove and connected to one end of the cleaning wires; one end of the rotating column penetrates through the first mounting block to form an extension part; The transmission wheel is arranged on the extension part; The transmission rod is arranged on the first mounting block and engaged with the transmission wheel.

4. Use of a shipboard filter-press decontamination plant according to any one of claims 1 to 3, characterized in that, The method comprises the following steps: Different filter presses in the filter pressing unit are controlled to be in different working states; the working states include a plate pulling and discharging state and a non-plate pulling and discharging state; When one of the filter presses is in the plate pulling and discharging state, the multi-directional movement unit drives the positioning assembly to move close to a current filter plate in the filter press; the positioning assembly clamps and positions the handle part of the current filter plate to separate the current filter plate from an adjacent filter plate; When the positioning assembly continuously clamps and positions the handle part of the current filter plate, the cleaning assembly is driven by the lifting part to reciprocatingly lift and clean residual mud cake on the current filter plate; After the current filter plate is cleaned, the multi-directional movement unit drives the positioning assembly and the cleaning assembly to move close to a next filter plate; after the next filter plate is clamped and pulled, the next filter plate is cleaned; the above operations are repeated until all the filter plates on the filter press are cleaned.

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