A mud press for the textile industry

Abstract

The present invention relates to the technical field of raw material dehydration equipment. The present invention provides a mud press for the textile industry, which includes a frame with a sliding main beam extending in the length direction; a plurality of filter plates, and two sets of sliding support assemblies are provided on both sides of each filter plate for symmetrical sliding along the width direction of the filter plate, and the plurality of filter plates are slidably arranged on the sliding main beam through the sliding support assemblies; the bottom and side of the sliding support assembly respectively correspond to the top and side of the sliding main beam for sliding contact, and the sliding support assembly is configured so that after the filter plate deflects along the vertical deflection axis, the side wall of the sliding support assembly is squeezed against the side of the sliding main beam, thereby driving the sliding support assembly to slide away from the filter plate, so as to reduce the force of squeezing the side wall of the sliding support assembly against the side of the sliding main beam. Through the above technical solution, the technical problem of the plate-type diaphragm filter press in the prior art causing the main beam to be scratched or deformed during the filtration operation is solved.

Description

Technical Field

[0001] The embodiments of the present invention relate to the technical field of raw material dehydration equipment, and in particular, to a mud press for the textile industry. Background Art

[0002] The textile industry generates large amounts of sludge containing impurities such as fiber and pulp during production. Mud presses are crucial for reducing and harmlessly treating sludge. Plate-type diaphragm filter presses are widely used in textile sludge treatment due to their high dehydration efficiency and excellent adaptability.

[0003] Currently, most existing plate-type diaphragm filter presses utilize a filter cloth secured to the outer frame of the plate. This approach, on the one hand, results in some materials from the textile sludge adhering to the filter cloth surface in the form of blocks or layers of a certain thickness during the filtration process. Due to the mechanical compression during the filtration process, these residual materials are difficult to completely remove, resulting in locally uneven layers of adhesion and variations in the overall thickness of the filter plate. When the filter plate thickness is uneven, it deflects during compression due to uneven force. Specifically, when the deflection axis is vertical, the handles on the edge of the plate frame exert continuous pressure on the sliding main beam, which can easily cause scratches or deformation of the main beam over time. Furthermore, when pressure is applied to the traditional outer frame-secured filter cloth, the filter cloth itself is prone to irregular wrinkles due to uneven tension, further exacerbating the imbalance in the plate and frame forces. The combined effects of these two factors not only affect the stability and filtration accuracy of the equipment but also significantly shorten the service life of key components such as the sliding main beam, increasing equipment maintenance costs.

[0004] In summary, the technical defects of the existing plate-type diaphragm filter press in filter cloth fixation and filter plate cleaning lead to a series of problems caused by uneven thickness and unbalanced force in the equipment. Summary of the Invention

[0005] In order to overcome the above-mentioned defects, the present invention provides a mud press for the textile industry, comprising:

[0006] a frame having two laterally extending sliding main beams;

[0007] The filter plate comprises several filter plates, and both sides of each filter plate are slidably connected to a sliding support assembly, and the sliding support assembly is slidably arranged on the sliding main beam and can slide to the side away from the filter plate; the sliding support assembly has a sliding groove that slidably cooperates with the top wall and outer side wall of the sliding main beam, and when the filter plate deflects and swings around its longitudinal axis, the outer side wall of the sliding main beam abuts against the inner side wall of the sliding groove to push the sliding support assembly to slide in the direction away from the filter plate.

[0008] For example, at least one embodiment of the present disclosure provides a mud press for the textile industry, wherein a raised arc-shaped abutment surface is provided on the inner wall of the slide groove, and when the filter plate deflects and swings around its longitudinal axis, the arc-shaped abutment surface can slide and abut against the outer wall of the sliding main beam.

[0009] For example, at least one embodiment of the present disclosure provides a mud press for the textile industry, wherein a mounting block is provided on the side of the filter plate, a first sliding groove is provided in the mounting block, and the sliding support assembly has a sliding rod slidably arranged in the first sliding groove; a first elastic member connected to the sliding rod is provided in the first sliding groove, and the first elastic member is used to elastically pull the sliding support assembly toward the side close to the filter plate to reset the sliding support assembly.

[0010] For example, in at least one embodiment of the present disclosure, a mud press for the textile industry is provided, wherein the sliding support assembly includes:

[0011] A main leg, the main leg sliding on the side of the filter plate, the arc-shaped abutting surface being located on the main leg;

[0012] The side support plates are provided in pairs of two, and the two side support plates are respectively slidably connected to the two sides of the main support legs. After the two adjacent filter plates approach each other, the side support plates on the two adjacent groups of the sliding support assemblies can approach each other and abut against each other.

[0013] For example, at least one embodiment of the present disclosure provides a mud press for the textile industry, wherein a second elastic member is connected between the two side support plates on both sides of the same main support leg, and the second elastic member is used to push the two side support plates in reverse so that the two side support plates face away from each other.

[0014] For example, at least one embodiment of the present disclosure provides a mud press for the textile industry, wherein a second sliding groove is provided through the side support plate, and the two paired side support plates each have a sliding rod portion slidably arranged in the second sliding groove, and a vertically extending guide column is provided in the second sliding groove, and the sliding rod portion is provided with a strip guide groove for the guide column to pass through, and the guide column is rotatably and slidably arranged in the strip guide groove to guide the sliding direction of the sliding rod portion.

[0015] For example, at least one embodiment of the present disclosure provides a mud press for the textile industry, wherein the two sliding rod portions of the two paired side support plates are stacked in the up-and-down directions, and the adjacent sides of the two sliding rod portions are provided with a reducing groove connected to the strip guide groove, and the inner diameter of the reducing groove gradually increases at one end close to the other side support plate, and an elliptical block is fixedly sleeved on the sliding rod portion, the major axis dimension of the elliptical block is equal to the maximum width of the reducing groove, and the minor axis dimension of the elliptical block is equal to the minimum width of the reducing groove, and the main support leg is configured to be able to swing with the filter plate to increase the angle between the major axis of the elliptical block and the length direction of the reducing groove, and limit the sliding amplitude of the two paired side support plates approaching each other.

[0016] For example, at least one embodiment of the present disclosure provides a mud press for the textile industry, wherein the side of the main leg is provided with a pulled portion extending outward, and further comprises:

[0017] A pulling cart is movably arranged on the sliding main beam, and a pulling claw is provided on the outer side of the pulling cart through a swing shaft. The pulling cart is used to pull the pulled part through the pulling claw after moving, and then drive the single filter plate to separate from the other filter plates.

[0018] For example, at least one embodiment of the present disclosure provides a mud press for the textile industry, wherein one side of the pulling claw has a guide arc edge, and the pulling trolley is used to drive the pulling claw to slide toward the side close to the main support leg, and the guiding arc edge can abut against the bottom wall of the pulled part, so as to press the pulling claw downward with the help of the bottom wall of the pulled part, and a torsion spring is provided on the swinging shaft of the pulling claw, and the two ends of the torsion spring act on the pulling claw and the pulling trolley respectively, for providing the force for the pulling claw to elastically twist and swing upward and reset; the pulling trolley can drive the pulling claw to pass through the bottom of the pulled part, and drive the pulling claw to swing vertically upward with the help of the torsion spring to press against the other side of the main support leg, so that the pulling trolley drives the main support leg to move in the opposite direction along the sliding main beam.

[0019] For example, at least one embodiment of the present disclosure provides a mud press for the textile industry, wherein a linear drive member is further provided on the frame, and a push plate is provided at the output end of the linear drive member, and the push plate is used to push the filter plate adjacent to it to squeeze several of the filter plates, and the longitudinal cross-sectional area of ​​the push plate is larger than the longitudinal cross-sectional area of ​​the filter plate.

[0020] The beneficial effects of the embodiments of the present invention are:

[0021] In the present invention, the bottom load-bearing and side-guiding bidirectional constraint structure of the sliding support assembly is designed to meet the low-pressure test requirements specified in the equipment use standards. This structural design releases lateral pressure through the dynamic displacement of the sliding support assembly when the filter plate undergoes initial deflection, avoiding scratches on the main beam surface caused by the inability of traditional fixed support structures to respond to small deformations during the low-pressure stage. This ensures that the pressure test process complies with equipment safety testing specifications and prevents damage during the testing process from affecting the stability of subsequent high-pressure filtration. In the standard low-pressure test process, the automatic sliding adjustment characteristics of the sliding support assembly can provide real-time feedback on the initial deflection state of the filter plate. That is, when there is a significant displacement difference between the sliding support assemblies on both sides of the filter plate, it intuitively indicates problems such as uneven thickness of the attachment layer on the filter cloth surface or filter plate installation deviation. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] To more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly describes the drawings required for describing the embodiments of the present invention. Obviously, the drawings described below are merely exemplary embodiments of the present invention. Those skilled in the art can, without inventive effort, derive other drawings based on the contents of the exemplary embodiments of the present invention and these drawings.

[0023] Figure 1 This is a schematic structural diagram of a mud press for the textile industry according to one embodiment of the present invention;

[0024] Figure 2 for Figure 1 A partial enlarged structural diagram of the middle part;

[0025] Figure 3 for Figure 1 A schematic structural diagram of a filter plate in an embodiment of the present invention;

[0026] Figure 4 for Figure 1 A schematic diagram of the internal structure of the sliding support assembly from one perspective in an embodiment;

[0027] Figure 5 for Figure 1 A schematic diagram of the internal structure of the sliding support assembly from another perspective in an embodiment;

[0028] Figure 6 for Figure 5 A schematic diagram of the partially enlarged structure of part B in the middle;

[0029] Figure 7 for Figure 1 A schematic structural diagram of a pull-plate truck in an embodiment of the present invention;

[0030] In the figure: frame-1, sliding main beam-2, filter plate-3, mounting block-301, first sliding groove-302, sliding support assembly-400, arc-shaped abutting surface-401, sliding rod-402, sliding groove-403, main support leg-410, second sliding groove-411, guide column-412, pulled part-413, side support plate-420, sliding rod part-421, strip guide groove-422, reducing groove-423, elliptical block-430, first elastic member-5, second elastic member-6, pulling cart-7, pulling claw-8, guide arc edge-801, torsion spring-9, linear drive member-10, push plate-11. DETAILED DESCRIPTION

[0031] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention.

[0032] To simplify the drawings, only portions relevant to the invention are schematically depicted in each figure; they do not represent the actual structure of the product. Furthermore, to simplify the drawings and facilitate understanding, in some figures, only one component with the same structure or function is schematically depicted or labeled. In this document, "one" not only means "only one" but also "more than one," and "several" includes "two" and "more than two."

[0033] It should be noted that, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they can refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediary; and internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in the present invention based on the specific circumstances.

[0034] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Furthermore, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0035] In the description of this embodiment, the terms "up", "down", "left", "right", etc., and the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be understood as a limitation on the present invention.

[0036] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0037] like Figures 1 to 7 The figure shows a mud press for the textile industry according to one embodiment of the present invention. The frame 1 is a frame-type foundation structure with two sliding main beams 2 disposed parallel to each other along its length. Each sliding main beam 2 includes a horizontally extending top bearing surface and side guide surfaces perpendicular to the bearing surface, which together form a track structure for the sliding of filter plates 3. The filter plates 3 are rectangular plate-shaped components, and there are multiple of them. Two sets of sliding support assemblies 400 are symmetrically disposed on either side of each filter plate 3 along its width. Each set of sliding support assemblies 400 consists of a bottom sliding portion and a side guide portion. The bottom sliding portion is located at the bottom side of the filter plate 3, with its bottom surface slidingly abutting against the top bearing surface of the sliding main beam 2, forming a horizontal support. The side guide portion is located in the middle of the side of the filter plate 3, with its side surface slidingly abutting against the side guide surfaces of the sliding main beam 2, forming a vertical guide. The bottom sliding part and the side guiding part are rigidly connected in an L-shaped split manner, together forming an enveloping sliding structure for the sliding main beam 2, so that the sliding support assembly 400 fits the sliding main beam 2 in a bottom-bearing and side-guiding manner.

[0038] The bottom sliding portion and side guides of the sliding support assembly 400 together form a chute 403 extending along the cross-sectional profile of the sliding main beam 2. This chute 403 forms a sliding fit with the top and outer sidewalls of the sliding main beam 2. When the filter plate 3 deflects and swings about its longitudinal axis, the outer sidewall of the sliding main beam 2 abuts the inner sidewall of the chute 403, pushing the sliding support assembly 400 along the sliding main beam 2 away from the filter plate 3.

[0039] According to equipment standards, filter press operations require two pressurization stages: a low-pressure test and a high-pressure press. The low-pressure test, as a filter plate condition check, pre-presses the filter plate assembly at a low pressure (typically 30%-50% of the operating pressure) before the actual filter press. This is used to identify potential issues such as filter cloth installation deviations and uneven thickness of the filter plate surface adhesion layer. The high-pressure press, during the actual dewatering process, typically uses a rated pressure of 1.2-2.0 MPa. During the low-pressure test, if impurities such as residual fibers and slurry on the filter cloth surface form an uneven adhesion layer on the filter plate 3, the filter plate 3 deflects vertically under the influence of the low-pressure pressure. This creates a compressive force between the side guides and the side guide surfaces of the sliding main beam 2. This compressive force is transmitted to the bottom sliding portion through the rigid connection structure of the sliding support assembly 400. Due to the sliding freedom between the bottom sliding portion and the top bearing surface, this compressive force drives the sliding support assembly 400 away from the filter plate 3. By adjusting the position of the sliding support assembly 400, the support points on both sides of the filter plate 3 are relatively displaced, thereby correcting the deflection angle of the filter plate 3, reducing the extrusion effect between the side guide part and the sliding main beam 2, and avoiding the continuous small extrusion force in the low-pressure stage to cause cumulative wear on the surface of the sliding main beam 2 that is not allowed by the equipment use standards.

[0040] The sliding support assembly 400 has a two-way constraint structure with bottom load-bearing and side guidance. In response to the low-pressure test requirements specified in the equipment usage standards, this structural design releases lateral pressure through the dynamic displacement of the sliding support assembly 400 when the filter plate 3 undergoes initial deflection. This avoids scratches on the main beam surface caused by the inability of traditional fixed support structures to respond to small deformations during the low-pressure stage, ensuring that the pressure test process complies with equipment safety testing specifications and preventing damage during the testing process from affecting the stability of subsequent high-pressure filtration. During the standard low-pressure test, the automatic sliding adjustment feature of the sliding support assembly 400 can provide real-time feedback on the initial deflection state of the filter plate 3. That is, when there is a significant displacement difference between the sliding support assemblies 400 on both sides of the filter plate, it intuitively indicates problems such as uneven thickness of the attachment layer on the filter cloth surface or filter plate installation deviation.

[0041] By combining the sliding freedom design of the sliding support assembly 400 with the standard pressure curve of the equipment, the filter plate deflection energy is absorbed through tiny sliding during the low-pressure pressure test phase, avoiding fatigue of the main beam surface material caused by the "pressure-friction" cycle during multiple pressure tests in traditional rigid connection structures; during the high-pressure filtration phase, the filter plate stress state pre-corrected through the pressure test link can significantly reduce the vertical deflection amplitude of the deflection axis, thereby reducing the lateral stress borne by the sliding main beam 2 under high-pressure conditions, and meeting the life standard requirements of key components from the perspective of the entire life cycle of the equipment. This structural design converts the harmful extrusion force generated by the filter plate deflection into a controllable sliding adjustment action according to the equipment usage standard through standardized optimization of the mechanical conduction path. No additional pressure detection sensors or drive devices are required. The full-process protection of the sliding main beam 2 can be achieved only through adaptive adjustment of the mechanical structure, reducing the frequency of unplanned downtime maintenance caused by structural damage in the detection link, and significantly improving the economy and reliability of equipment operation.

[0042] In some examples, the side guide portion of the sliding support assembly 400 is provided with a curved abutment surface 401 that matches the side guide surface, facing the side guide surface of the sliding main beam 2. The center of curvature of this curved abutment surface 401 is located outboard of the filter plate 3. Its curved surface extends along the width of the filter plate 3 and covers the entire side surface of the side guide portion, forming a rolling contact structure with the side guide surface of the sliding main beam 2. When the filter plate 3 deflects vertically about its deflection axis, the side guide portion rotates synchronously with the filter plate 3, causing the curved abutment surface 401 and the side guide surface of the sliding main beam 2 to transition from initial planar sliding contact to curved rolling contact. At this point, the curved profile of the curved abutment surface 401 guides the sliding support assembly 400 to roll and glide along the length of the sliding main beam 2 when subjected to lateral extrusion force, rather than the sliding friction of traditional planar contact.

[0043] The arcuate abutment surface 401 is arranged on the inner wall of the slide groove 403. When the filter plate 3 deflects and swings around its longitudinal axis, the arcuate abutment surface 401 can form a rolling sliding abutment with the outer wall of the sliding main beam 2, further reducing sliding resistance and wear.

[0044] The design of the curved abutment surface 401 optimizes the mechanical transmission between the sliding support assembly 400 and the sliding main beam 2 by converting sliding contact into rolling contact. The curved profile forms a rolling fulcrum when the filter plate 3 deflects, concentrating the contact stress between the side guide portion and the side guide surface of the sliding main beam 2 at the tangent point of the curved surface. This converts the sliding friction of traditional planar sliding into rolling friction resistance, significantly reducing the friction coefficient of the contact interface. This structural improvement synergizes with the dynamic sliding adjustment mechanism of the sliding support assembly 400. When the filter plate 3 deflects and generates lateral extrusion force, the rolling characteristics of the curved abutment surface 401 drive the sliding support assembly 400 with less resistance, making the force state adjustment of the filter plate 3 more sensitive and efficient. Furthermore, rolling contact avoids surface scratches that may be caused by planar sliding. Especially under the slight deflection conditions of low-pressure testing, the continuous rolling rather than sliding contact further reduces wear on the side guide surfaces of the sliding main beam 2, extending the contact fatigue life of key components and improving the stability of the equipment during long-term operation. By optimizing the geometric shape, this design upgrades the contact mode between the support assembly and the main beam without adding any additional drive structure, providing a low-resistance, low-wear mechanical transmission path for the sliding adjustment of the filter plate during deflection.

[0045] In some examples, mounting blocks 301 are symmetrically arranged on both sides of the filter plate 3 along the width direction. Each mounting block 301 has a first sliding groove 302 extending along the width direction of the filter plate 3 on the side facing the sliding main beam 2. A slider structure adapted to the first sliding groove 302 is provided at the end of the bottom sliding portion of the sliding support assembly 400 near the filter plate 3. The slider structure is slidably embedded in the first sliding groove 302, forming a linear sliding pair along the width direction of the filter plate 3. A first elastic member 5 is disposed between the inner wall of the first sliding groove 302 and the slider structure of the sliding support assembly 400. The first elastic member 5 is arranged along the width direction of the filter plate 3. One end of the first elastic member 5 is fixed to the inner wall of the first sliding groove 302 away from the sliding main beam 2, and the other end is rigidly connected to the slider structure of the sliding support assembly 400. When the filter plate 3 deflects during the low-pressure test, driving the sliding support assembly 400 to slide along the length direction of the sliding main beam 2 in the direction away from the filter plate 3, the first elastic member 5 is stretched to produce elastic deformation; when the test pressure is released or the deflection state of the filter plate 3 is corrected, the elastic restoring force of the first elastic member 5 pulls the sliding support assembly 400 to reset along the first sliding groove 302 in the direction close to the filter plate 3, so that the sliding support assembly 400 returns to its initial installation position.

[0046] The slider structure of the sliding support assembly 400 includes a sliding rod 402, which extends along the width direction of the filter plate 3 and is slidably arranged in the first sliding groove 302; the first elastic member 5 is sleeved on the outside of the sliding rod 402, one end of which is fixedly connected to the end of the sliding rod 402, and the other end is fixedly connected to the inner wall of the first sliding groove 302 to provide elastic tension along the width direction of the filter plate 3.

[0047] The elastic connection structure between the first elastic member 5 and the sliding support assembly 400 provides a closed-loop control mechanism for the dynamic adjustment of the sliding support assembly 400: in the above structure, when the filter plate 3 deflects due to uneven thickness, the sliding adjustment action of the sliding support assembly 400 causes the first elastic member 5 to store energy. This elastic potential energy is converted into a reset driving force after the pressure is released, ensuring that the sliding support assembly 400 automatically returns to its initial position after each pressure test cycle. This elastic reset mechanism forms a synergistic effect with the rolling characteristics of the arc-shaped abutment surface 401, that is, the arc-shaped abutment surface 401 reduces the friction resistance during the sliding adjustment process, allowing the first elastic member 5 to be reset with less force, thereby improving the response speed and stability of the adjustment system. During continuous pressure testing operations, the elastic reset function ensures the position accuracy of the sliding support assembly 400, avoids the cumulative displacement deviation caused by multiple sliding movements affecting the centering of the filter plate 3, and maintains the consistency and reliability of the equipment in multi-cycle operations. In addition, the preload force of the first elastic member 5 can be preset according to the test pressure range in the equipment usage standard, so that the sliding support assembly 400 can flexibly respond to small deflections during the low-pressure test and provide sufficient support stiffness during high-pressure filtration, thereby realizing the multifunctional adaptation of the same structure in different pressure stages and further optimizing the overall performance of the equipment.

[0048] In some examples, the sliding support assembly 400 comprises a main leg 410 and a side support plate 420. The main leg 410 slides with the first sliding groove 302 on the side of the filter plate 3 via a bottom sliding portion. Its side guide portion is provided with an arcuate abutment surface 401 that contacts the guide surface on the side of the sliding main beam 2. Two sets of side support plates 420 are symmetrically arranged horizontally on the main leg 410. Each set of side support plates 420 can slide and swing horizontally on the main leg 410.

[0049] When adjacent filter plates 3 approach each other during the low-pressure test, the side support plates 420 of the two adjacent sets of sliding support assemblies 400 gradually come into contact. As the filter plates 3 move closer together, the side support plates 420 adjust their positions by sliding and swinging horizontally on the main support legs 410, eventually abutting against each other and arranging themselves sequentially along the extension direction of the sliding main beam 2, forming a continuous support structure. During this process, if the filter plates 3 deflect vertically about their deflection axes, the main support legs 410 drive the side support plates 420 to slide along the sliding main beam 2. The side support plates 420 slide and swing relative to each other, adapting to the changes in the deflection angle of the filter plates 3 and maintaining a continuous support state.

[0050] The design of the above-mentioned side support plate 420 forms a synergistic effect with the curved abutment surface 401 of the main support leg 410, the first elastic member 5 and other structures. The continuous support structure formed by the side support plate 420 when adjacent filter plates 3 are close to each other can effectively disperse the lateral force generated by the deflection of the filter plate 3, avoid excessive local force on the sliding main beam 2, and cooperate with the rolling contact of the curved abutment surface 401 to further reduce friction and wear during the sliding process. During the low-pressure pressure test, the sliding and swinging characteristics of the side support plate 420 enable it to quickly adapt to the slight deflection of the filter plate 3, maintain the stability of the support structure, and avoid filter plate dislocation caused by support failure. At the same time, the reset force provided by the first elastic member 5 can assist the side support plate 420 to return to its initial position after the pressure test, ensuring the consistency of the support structure when the equipment is repeatedly operated. Through the dynamic adjustment function of the side support plate 420, this design significantly improves the reliability and stability of the mud press during the low-pressure pressure test stage, extends the service life of key components such as the sliding main beam 2, and reduces equipment maintenance costs.

[0051] In some examples, a second sliding slot 411 is formed in the middle of the side support plate 420 along the width of the filter plate 3. A sliding rod 421 extends horizontally from the top of the main leg 410. The sliding rod 421 is slidably embedded in the second sliding slot 411. Vertically extending guide posts 412 are symmetrically provided on the upper and lower groove walls of the second sliding slot 411. Strip guide slots 422 are formed on the upper and lower surfaces of the sliding rod 421 along its sliding direction. The ends of the guide posts 412 are embedded in the strip guide slots 422, forming a rotating and sliding fit.

[0052] When the filter plate 3 deflects vertically along its deflection axis during the low-pressure test, the main leg 410 slides along the sliding main beam 2, driving the sliding rod 421 to slide within the second sliding groove 411. At this point, the guide post 412 rolls and slides within the strip guide groove 422. The guiding action of the strip guide groove 422 ensures that the sliding direction of the sliding rod 421 aligns with the deflection direction of the filter plate 3, preventing the side support plates 420 from getting stuck during the sliding process. Simultaneously, the coordination between the guide post 412 and the strip guide groove 422 allows the side support plates 420 to swing slightly around the guide post 412, accommodating the angular variation between adjacent side support plates 420 caused by the deflection of the filter plate 3 and maintaining continuous contact between the side support plates 420.

[0053] The coordinated structure of the guide post 412 and the strip guide groove 422 further optimizes the motion trajectory of the side support plate 420, building on the previously mentioned sliding and swinging motion of the side support plate 420. The guiding action of the strip guide groove 422 ensures that the sliding direction of the side support plate 420 strictly follows the width of the filter plate 3, ensuring that the side support plate 420 does not deviate during sliding, thereby enhancing the stability of the support structure. This precise guidance, combined with the rolling contact of the curved abutment surface 401, ensures that the sliding support assembly 400 responds smoothly to filter plate 3 deflection, reducing sliding resistance and the risk of wear. The rotational freedom of the guide post 412 within the strip guide groove 422 allows the side support plate 420 to adjust its angle during sliding, effectively compensating for angular differences between adjacent filter plates 3 caused by deflection. This swing-adaptive function, combined with the bidirectional pushing action of the second elastic member 6, enables the side support plate 420 to adapt to more complex filter plate 3 motions while maintaining continuous support, thereby enhancing the adaptability and reliability of the support structure. The cooperation between the guide post 412 and the strip guide groove 422 decouples the sliding and swinging motions of the side support plate 420, allowing the two motions to proceed independently and in coordination. This decoupling design avoids the problem of poor movement caused by interference between sliding and swinging in traditional structures, allowing the side support plate 420 to maintain flexible adjustment capabilities under various operating conditions of the filter plate 3, further extending the service life of the sliding support assembly 400.

[0054] In some examples, the two main legs 410 corresponding to each pair of side support plates 420 are stacked and staggered in a vertical arrangement, with the bottom of the upper main leg 410 lower than the top of the lower main leg 410, forming a staggered structure with a height difference of H. The end surfaces of the side support plates 420 that slide in contact with each other are provided with a reducing groove 423 along the width of the filter plate 3. The inner diameter of the reducing groove 423 gradually increases outward from the plate surface of the side support plate 420, forming a wedge-shaped groove structure. The free end of the sliding rod 421 is sleeved with an elliptical block 430, which has an elliptical cross-section, with a major axis length equal to the maximum inner diameter of the reducing groove 423 and a minor axis length equal to the minimum inner diameter of the reducing groove 423.

[0055] When the filter plate 3 deflects vertically along its deflection axis during the low-pressure test, the main leg 410 swings synchronously with the filter plate 3, driving the elliptical block 430 to move within the reducing slot 423. Initially, the long axis of the elliptical block 430 is parallel to the length of the reducing slot 423, allowing it to slide freely within the reducing slot 423. As the deflection angle of the filter plate 3 increases, the swinging of the main leg 410 causes the angle between the long axis of the elliptical block 430 and the length of the reducing slot 423 to gradually increase. When the angle reaches a critical value, the long axis of the elliptical block 430 forms linear contact with the inner wall of the reducing slot 423, generating a clamping force that restricts the sliding of the side support plates 420 toward the main leg 410, thereby locking the adjacent side support plates 420 into a rigid connection.

[0056] The coordinated structure of the variable-diameter slot 423 and the elliptical block 430 significantly enhances the support rigidity of the sliding support assembly 400 when the filter plate 3 deflects through a mechanical self-locking mechanism. When the filter plate 3 deflects at a small angle, the elliptical block 430 slides freely within the variable-diameter slot 423, maintaining the adjustable flexibility of the side support plate 420. When the deflection angle exceeds a critical value, the clamping mechanism is automatically triggered, locking the adjacent side support plates 420 into a rigid structure, forming a continuous support beam along the direction of the sliding main beam 2. This adaptive locking function works in conjunction with the preload force of the second elastic member 6, ensuring that the support structure maintains flexible adjustment capabilities when needed while providing sufficient rigid support.

[0057] In some examples, the bottom of the main leg 410 extends toward the closing direction of the filter plate 3 to form a pulled portion 413, the end of which is a wedge-shaped structure. A guide rail extending along the length of the sliding main beam 2 is provided at the bottom. The pull trolley 7 slides on the guide rail via rollers. A pull claw 8 is provided at the top of the sliding main beam 2, swinging through a hinged structure. The free end of the pull claw 8 is provided with a slot that fits the wedge-shaped structure of the pulled portion 413, and the inner wall of the slot is provided with anti-slip serrations. When the filtration is completed and the cake needs to be unloaded, the pull trolley 7 moves along the guide rail to the target filter plate 3 position. The pull claw 8 moves with the pull trolley 7 and contacts the wedge-shaped surface of the pulled portion 413. The guiding effect of the wedge-shaped surface causes the pull claw 8 to swing about the hinge point until the slot engages with the end of the pulled portion 413. The pull trolley 7 then moves in the opposite direction, pulling the pulled portion 413 via the pull claw 8, causing a single filter plate 3 to slide along the sliding main beam 2, thereby separating it from the adjacent filter plate 3.

[0058] The matching structure of the pulling trolley 7 and the pulled part 413 realizes the automation and reliability improvement of the filter plate 3 separation process through mechanical guidance and engagement design: the guidance function of the wedge structure enables the pulling claw 8 to automatically engage the pulled part 413 without manual intervention, simplifying the cake unloading operation process and improving the equipment operation efficiency. The setting of the anti-slip tooth pattern enhances the friction during engagement, preventing the pulling claw 8 and the pulled part 413 from slipping during the pulling process, and ensuring the stability of the filter plate 3 separation action. The integrated design of the pulled part 413 and the main support leg 410 allows the pulling force to be directly transmitted to the sliding support assembly 400 through the main support leg 410. The rolling contact characteristics of the sliding support assembly 400 and the sliding main beam 2 are utilized to greatly reduce the movement resistance of the filter plate 3, reduce the direct stress of the traditional rigid pulling plate structure on the filter plate 3 body, and avoid damage to the filter plate 3 due to uneven force. This structure, combined with the dynamic support design of the side support plates 420, allows the side support plates 420 to automatically disengage from their abutment when the filter plates 3 separate, preventing any jamming and ensuring smooth cake unloading. This design significantly improves the automation and reliability of the equipment during unloading, effectively reducing manual labor and the risk of equipment failure, making it suitable for the frequent unloading requirements of textile sludge treatment.

[0059] In some examples, a guide arc 801 is provided on one edge of the pull claw 8 facing the filter plate 3. The curvature of the guide arc 801 matches the contour of the wedge-shaped surface of the pulled portion 413. The pull claw 8 is hinged to the pull plate trolley 7 via a swing shaft 802. A torsion spring 9 is sleeved on the swing shaft 802. One end of the torsion spring 9 is fixed to the hinge seat 803 of the pull claw 8, and the other end is fixed to the bracket 701 of the pull plate trolley 7. This ensures that the pull claw 8 maintains its initial tilt angle toward the filter plate 3 in its natural state.

[0060] When the pallet trolley 7 moves along the sliding main beam 2 toward the filter plate 3, the guide arc edge 801 first contacts the wedge-shaped surface of the pulled portion 413. As the pallet trolley 7 continues to move forward, the guide arc edge 801 generates an upward component of force under the action of the wedge-shaped surface, driving the claw 8 to swing counterclockwise around the swing axis 802 toward the filter plate 3. At this time, the torsion spring 9 is stretched and stores energy. When the pallet trolley 7 moves until the slot 804 of the claw 8 is aligned with the wedge-shaped end of the pulled portion 413, the claw 8 swings back clockwise under the elastic restoring force of the torsion spring 9, causing the slot 804 to tightly engage with the pulled portion 413. The pallet trolley 7 then moves in the opposite direction, pulling the pulled portion 413 through the claw 8, driving the filter plate 3 to slide along the sliding main beam 2.

[0061] Once the filter plates 3 are separated, the pallet trolley 7 moves toward the filter plates 3 again, and the guide arc 801 contacts the wedge-shaped surface on the other side of the pulled portion 413. The force generated by the wedge-shaped surface causes the claw 8 to swing counterclockwise again, disengaging the engagement slot 804 from the pulled portion 413. The pallet trolley 7 can then move freely to the next filter plate 3, and the above operation is repeated. The combination of the guide arc 801 and the torsion spring 9 significantly improves the operational reliability of the pallet trolley 7 through a mechanical elastic reset mechanism.

[0062] In some examples, a linear drive 10 is fixedly mounted at one end of the frame 1. The output end of the linear drive 10 extends horizontally along the length of the sliding main beam 2 and connects to a push plate 11. The push plate 11 is a rectangular flat plate, with both its length and width greater than the corresponding dimensions of the filter plates 3, forming a pressure-bearing structure that covers the entire end surface of the filter plates 3. The push plate 11's surface is parallel to the end surface of the filter plates 3, with a gap between them for the filter plates 3 to slide. When a low-pressure test or high-pressure filtration is required, the linear drive 10 drives the push plate 11 along the sliding main beam 2. After the push plate 11's surface contacts the end surface of the first filter plate 3, it continues to push, squeezing the filter plates 3 against each other on the sliding main beam 2. Because the push plate 11 has a larger surface area than the filter plates 3, its surface completely covers the end surfaces of the filter plates 3, ensuring that the squeezing force is applied evenly across the entire end surface area of ​​the filter plates 3.

[0063] The combined structure of push plate 11 and linear drive element 10 achieves uniform transmission of extrusion force through a surface area difference design: the larger surface area of ​​push plate 11 than that of filter plate 3 ensures that the extrusion force is not concentrated at the edge of filter plate 3, but is evenly distributed across the entire end face, avoiding the stress concentration at the edge of filter plate 3 caused by traditional small-area push plates. This uniform pressure application method, combined with the dynamic adjustment mechanism of the sliding support assembly 400 described above, forms a synergistic low-pressure pressure test link. The uniform pressure of push plate 11 makes it easier for the sliding adjustment of the sliding support assembly 400 to compensate for minor deflections of the filter plate 3, improving the accuracy of the pressure test. During the high-pressure filtration stage, the uniform end face pressure combined with the rolling contact of the sliding support assembly 400 significantly reduces the deflection amplitude of the filter plate 3 caused by uneven force, reducing the lateral force borne by the sliding main beam 2. In addition, the full coverage design of push plate 11 effectively prevents the filter plate 3 from tipping or tilting during the extrusion process. Together with the continuous support structure of the side support plate 420, it forms a three-dimensional constraint system, improving the stability of the filter plate assembly under high-pressure conditions. This structure solves the problem of uneven force on the filter plates of traditional filter presses caused by insufficient push plate area by optimizing geometric dimensions and designing mechanical conduction paths, thereby further enhancing the reliability and filtration accuracy of equipment operation and extending the service life of key components.

[0064] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A mud press for the textile industry, characterized in that: include: A frame (1), the frame (1) having two laterally extending sliding main beams (2); A filter plate (3), wherein the filter plates (3) are in plurality, and both sides of each filter plate (3) are slidably connected to a sliding support assembly (400), and the sliding support assembly (400) is slidably arranged on the sliding main beam (2) and can slide toward a side away from the filter plate (3); the sliding support assembly (400) has a sliding groove (403) that slidably cooperates with the top wall and the outer side wall of the sliding main beam (2), and when the filter plate (3) deflects and swings around its longitudinal axis, the outer side wall of the sliding main beam (2) abuts against the inner side wall of the sliding groove (403) to push the sliding support assembly (400) to slide in a direction away from the filter plate (3); A raised arc-shaped abutting surface (401) is provided on the inner side wall of the sliding groove (403); when the filter plate (3) deflects and swings around its longitudinal axis, the arc-shaped abutting surface (401) can slide and abut against the outer side wall of the sliding main beam (2); A mounting block (301) is provided on the side of the filter plate (3), a first sliding groove (302) is provided in the mounting block (301), and the sliding support assembly (400) has a sliding rod (402) slidably arranged in the first sliding groove (302); a first elastic member (5) connected to the sliding rod (402) is provided in the first sliding groove (302), and the first elastic member (5) is used to elastically pull the sliding support assembly (400) toward a side close to the filter plate (3) so as to reset the sliding support assembly (400); The sliding support assembly (400) comprises: A main support leg (410), the main support leg (410) slides on the side of the filter plate (3), and the arc-shaped abutting surface (401) is located on the main support leg (410); Two side support plates (420) are provided in pairs, and the two side support plates (420) are respectively slidably connected to the two sides of the main support leg (410). After two adjacent filter plates (3) are brought close to each other, the side support plates (420) on two adjacent groups of the sliding support assemblies (400) can approach each other and abut against each other; A second elastic member (6) is further connected between the two side support plates (420) on both sides of the same main support leg (410), and the second elastic member (6) is used to push the two side support plates (420) in opposite directions so that the two side support plates (420) move away from each other; A second sliding groove (411) is provided through the main support leg (410), and the two paired side support plates (420) each have a sliding rod portion (421) slidably arranged in the second sliding groove (411), a vertically extending guide column (412) is provided in the second sliding groove (411), and the sliding rod portion (421) is provided with a strip guide groove (422) for the guide column (412) to pass through, and the guide column (412) is rotatably and slidably arranged in the strip guide groove (422) to guide the sliding direction of the sliding rod portion (421).

2. A mud press for the textile industry according to claim 1, characterized in that: The two sliding rods (421) of the two paired side support plates (420) are stacked in the vertical direction. The adjacent sides of the two sliding rods (421) are provided with a reducing groove (423) connected to the strip guide groove (422). The inner diameter of the reducing groove (423) at one end close to the other side support plate (420) gradually increases. An elliptical block (430) is fixedly sleeved on the guide column (412). The elliptical block (430) is fixedly sleeved on the guide column (412). 0) is equal to the maximum width of the variable diameter slot (423), the minor axis of the elliptical block (430) is equal to the minimum width of the variable diameter slot (423), and the main support leg (410) is configured to swing along with the filter plate (3) to increase the angle between the major axis of the elliptical block (430) and the length direction of the variable diameter slot (423), and to limit the sliding range of the two paired side support plates (420) approaching each other.

3. The textile industry mud press according to claim 1, characterized in that: The side of the main leg (410) is provided with a pulled portion (413) extending outward, and further comprises: A pulling trolley (7) is movably arranged on the sliding main beam (2), and a pulling claw (8) is provided on the outer side of the pulling trolley (7) through a swing shaft. The pulling trolley (7) is used to pull the pulled part (413) through the pulling claw (8) after moving, thereby driving a single filter plate (3) to separate from other filter plates (3).

4. A mud press for the textile industry according to claim 3, characterized in that: One side of the pulling claw (8) has a guide arc edge (801), and the pulling trolley (7) is used to drive the pulling claw (8) to slide toward the side close to the main support leg (410), and the guide arc edge (801) can abut against the bottom wall of the pulled part (413) to press the pulling claw (8) downward with the help of the bottom wall of the pulled part (413), and a torsion spring (9) is sleeved on the swing shaft of the pulling claw (8), and the two ends of the torsion spring (9) act on the pulling claw (8) and the pulling trolley (7) respectively to provide the pulling claw (8) with a force to elastically twist and swing back; the pulling trolley (7) can drive the pulling claw (8) to pass through the bottom of the pulled part (413), and with the help of the torsion spring (9), drive the pulling claw (8) to swing vertically upward until it presses against the other side of the main support leg (410), so that the pulling trolley (7) drives the main support leg (410) to move in the opposite direction along the sliding main beam (2).

5. The mud press for textile industry according to claim 1, characterized in that: A linear drive member (10) is further provided on the frame (1), and a push plate (11) is provided at the output end of the linear drive member (10). The push plate (11) is used to push the filter plates (3) adjacent thereto to squeeze a plurality of the filter plates (3), and the longitudinal cross-sectional area of ​​the push plate (11) is larger than the longitudinal cross-sectional area of ​​the filter plates (3).

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