Self-adaptive multi-layer filter pressing system

Abstract

A self-adaptive multi-layer filter pressing system comprises filter pressing equipment and folding equipment, the filter pressing equipment comprises an upper crawler belt mechanism, a lower crawler belt mechanism and a pressure execution element, a filter pressing area is formed between the upper crawler belt mechanism and the lower crawler belt mechanism, and the thickness of the filter pressing area is reduced in the advancing direction of materials; the upper track mechanism comprises an upper pressing plate used for pressing a filter pressing area, the lower track mechanism comprises a lower pressing plate used for supporting the filter pressing area, the output end of the pressure execution element is connected with the upper pressing plate and applies pressure to the upper pressing plate, and the upper pressing plate can move up and down along with the output end of the pressure execution element; the folding device is used for folding the filter belt wrapping the materials into multiple layers of materials. According to the utility model, sludge is folded into multiple layers of materials and then enters the filter pressing area to be subjected to filter pressing, and the pressure executing element is matched with the upper pressing plate, so that the problem of machine blocking can be avoided, the multiple layers of materials can smoothly pass through the filter pressing area to be dehydrated, and thin-layer, efficient and continuous deep dehydration is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of dehydration, in particular to an adaptive multi-layer filter press system. Background Art

[0002] With the rapid development of industry, some environmental problems inevitably arise and need to be dealt with. As water treatment technology matures, water treatment is better guaranteed. However, the sludge produced after water treatment contains microorganisms, pathogens, heavy metals and other substances, which has always been a thorny problem in this industry. According to statistics, the dehydration and reduction of sludge has become a major problem in environmental governance. At present, the sludge disposal in the industry is mainly based on mechanical dehydration and drying dehydration. After the sludge is reduced, it is incinerated, used as a raw material for building materials, composted and other resources. In the current development of mechanical dehydration technology, plate and frame dehydrators and belt dehydrators are mainly used. The plate and frame dehydrator has the largest market share. Its working principle is to use the hydraulic system to press the filter plate, form pressure on the filter cloth, and then separate the liquid from the solid particles through the pressure difference. It is mainly achieved through the steps of exhaust, filling, compression, filtration and dehydration. With the assistance of pharmaceutical agents, the plate and frame dehydrator can dehydrate the sludge to about 60%-70%, and the mud cake thickness is large. However, the disadvantage of this dehydration method is that it is intermittent production and difficult to achieve fully automated production. The belt dehydrator mainly uses gravity dehydration, and the wedge-shaped area formed by the filter cloth drives the filter cloth to squeeze and dehydrate on the roller. It mainly dehydrates by the shear force between the filter cloth and the roller. It is difficult to achieve deep dehydration of the sludge, and the moisture content is about 80%. Its advantages are automatic loading and unloading, and a high degree of automation. The disadvantage is that the sludge force process is discontinuous, and a continuous pressure-holding process is not formed, making it difficult for the sludge to remove more water.

[0003] Therefore, in the mechanical dewatering of sludge, the satisfaction of conditions such as high pressure, continuous pressure, and thin layering is the key to removing more water from the sludge, but there is currently no dewatering equipment that can meet the above conditions. Utility Model Content

[0004] In view of the technical problems existing in the prior art, the purpose of the utility model is to provide an adaptive multi-layer filter pressing system, which can achieve thin-layer and continuous sludge dehydration through stacked continuous filter pressing.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an adaptive multi-layer filter press system, including a filter press device and a folding device, the filter press device includes an upper crawler mechanism, a lower crawler mechanism and a pressure actuator, a filter press area is formed between the upper crawler mechanism and the lower crawler mechanism, and the thickness of the filter press area decreases along the moving direction of the material; the upper crawler mechanism includes an upper pressure plate for pressing the filter press area, and the lower crawler mechanism includes a lower pressure plate for supporting the filter press area. The output end of the pressure actuator is connected to the upper pressure plate and applies pressure to the upper pressure plate, and the upper pressure plate can move up and down with the output end of the pressure actuator; the folding device is used to fold the filter belt wrapped with the material into multiple layers of material, and the multiple layers of material are sent to the filter press equipment for dehydration.

[0006] After adopting this structure, the sludge is folded into multiple layers of material and then enters the filter press area for filtration. After deep dehydration, it is pulled apart to achieve thin layers of sludge and achieve the effect of deep dehydration. Moreover, through the cooperation of the pressure actuator and the upper pressure plate, even if the folded material is thicker, the machine jamming problem can be avoided, so that the multiple layers of material can be smoothly dehydrated through the filter press area, achieving efficient and continuous deep dehydration.

[0007] As a preferred embodiment, the thickness of the filter press area decreases linearly along the traveling direction of the material, and an angle of 0-30° is formed between the upper end surface and the lower end surface of the filter press area.

[0008] As a preferred embodiment, the filter press equipment also includes a filter press frame, the upper crawler mechanism and the lower crawler mechanism are both installed in the filter press frame, the pressure actuator is a hydraulic device, including two hydraulic cylinder groups, the two hydraulic cylinder groups are arranged front and back along the travel direction of the material, the hydraulic cylinder group includes a hydraulic cylinder, the output end of the hydraulic cylinder is connected to the upper pressure plate by bolts, the base of the hydraulic cylinder is fixedly connected to the filter press frame, and the lower pressure plate is fixedly connected to the filter press frame.

[0009] As a preferred embodiment, the folding device includes a folding frame, a swing cylinder, a chain transmission mechanism, and a mounting base;

[0010] The mounting base is located below the folding frame, and the folding frame is connected to the mounting base via a buffer spring. The swing cylinder can be mounted on the folding frame so as to slide back and forth. The chain transmission mechanism is connected to the swing cylinder and drives the swing cylinder to move back and forth. A folding assembly is connected to the swing cylinder, and the swing cylinder drives the folding assembly to swing back and forth. The folding assembly includes a front cloth pushing plate and a rear cloth pushing plate that are relatively arranged. The filter belt wrapped with the material passes between the front cloth pushing plate and the rear cloth pushing plate. The folding assembly moves back and forth with the swing cylinder to fold the filter belt.

[0011] As a preferred embodiment, the folding equipment also includes two front and rear arranged symmetrical clamping members, which are rotatably connected to the folding frame, and the lower ends of the clamping members are used to press the folded multi-layer materials; a push rod is connected to the swing cylinder, and the swing cylinder moves back and forth between the front station and the rear station. When the swing cylinder moves to the front station or the rear station, the push rod pushes against the upper part of the corresponding clamping member, causing the lower end of the clamping member to tilt.

[0012] As a preferred embodiment, a pre-dehydration device is further included, which includes a plurality of pre-pressing rollers, and the plurality of pre-pressing rollers are staggered up and down in the front-to-back direction, so that the filter belt containing the material passes around the plurality of pre-pressing rollers in a serpentine shape.

[0013] As a preferred embodiment, it also includes a discharging device, which includes a discharging roller assembly that can move back and forth, and the discharging roller assembly includes two discharging rollers. The filter belt wrapped with the material passes between the two discharging rollers, and the discharging roller assembly drives the filter belt to move in the opposite direction of the folding direction, thereby pulling apart the multiple layers of material layer by layer and restoring them into a belt shape.

[0014] As a preferred embodiment, the upper crawler mechanism and the lower crawler mechanism both include a first sprocket, a second sprocket, crawlers, a supporting net and a tensioning mechanism, the crawlers are connected end to end and surround the first sprocket and the second sprocket in a runway shape, the first sprocket and the second sprocket drive the crawlers to move, the supporting net surrounds the outer side of the crawlers, and the supporting net is tensioned by the tensioning mechanism;

[0015] The rear end of the supporting net of the lower crawler mechanism is located below the folding device, and the front end of the supporting net of the lower crawler mechanism is butted against the discharging equipment.

[0016] An adaptive multi-layer filter pressing method, using the above-mentioned adaptive multi-layer filter pressing system, comprises the following steps:

[0017] S1, material distribution: distribute the material on the filter belt, and send the filter belt wrapped with the material into the pre-pressing equipment;

[0018] S2, pre-pressing and dehydrating: the filter belt wrapped with the material is pre-pressed and dehydrated to form pre-dehydrated material;

[0019] S3, folding: the pre-dehydrated material enters the folding device and is folded into multiple layers of material;

[0020] S4, filter pressing: the multi-layer materials enter the filter pressing area of ​​the filter pressing equipment for dehydration. As the multi-layer materials move forward, the pressure on the multi-layer materials increases. When the pressure reaches the preset pressure value, the output end of the pressure actuator rises with the upper pressure plate, allowing the multi-layer materials to pass through the filter pressing area;

[0021] S5, unloading: After the multi-layer materials pass through the filter press area, the multi-layer materials are pulled apart to restore to belt-shaped dehydrated materials, and then the materials on the filter belt are scraped off, and the filter belt returns to the distribution equipment for distribution.

[0022] As a preferred embodiment, in step S4, after the multilayer material enters the filter pressing area of ​​the filter pressing equipment, it stops moving first, removes part of the free water, and then continues to move forward.

[0023] In general, the utility model has the following advantages:

[0024] (1) Through the coordination of the folding equipment and the crawler filter press equipment, the multi-layer materials are dehydrated under the joint action of the crawler mechanism and the pressure actuator, achieving deep dehydration and thin layer dehydration while avoiding the problem of machine jamming and achieving efficient and continuous production.

[0025] (2) After the material is pre-pressed and initially formed, it is folded to ensure the uniformity of material distribution, make the thickness of the folded material uniform, and achieve better dehydration effect.

[0026] (3) The filter belt passes through the pre-dehydration equipment, folding equipment, filter pressing equipment, discharging equipment and unloading equipment in sequence and then returns to the pre-pressing equipment, which can realize the automation of the entire dehydration process and reduce labor costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural schematic diagram of an adaptive multi-layer filter press system.

[0028] Figure 2 A perspective view of a folding device.

[0029] Figure 3 This is the front view of the foldable device.

[0030] Figure 4 A cross-sectional view of a foldable device.

[0031] Figure 5 It is a structural diagram of the pressure actuator.

[0032] Figure 6 for Figure 5 Diagram of the inner workings of area A in center.

[0033] Among them, 1 is a pre-dehydration device, 2 is a folding device, 3 is a filter press device, 4 is a discharging device, 5 is a filter belt, 6 is a tensioning roller, 7 is a support net, and 8 is a scraping device.

[0034] 201 is a buffer spring, 202 is a folding frame, 203 is a linear slide rail, 204 is a swing cylinder, 205 is a slide table, 206 is a chain transmission mechanism, 207 is a push rod, 208 is a folding assembly, and 209 is a pressing member.

[0035] 301 is an upper pressure plate, 302 is a hydraulic cylinder, 303 is a filter press frame, 304 is a hydraulic pump, 305 is an oil cylinder, 306 is an overflow valve, and 307 is an oil return branch. DETAILED DESCRIPTION

[0036] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0037] like Figure 1 As shown, an adaptive multi-layer filter press system includes a filter press device and a folding device. The filter press device includes an upper track mechanism, a lower track mechanism and a pressure actuator. A filter press area is formed between the upper track mechanism and the lower track mechanism. The thickness of the filter press area decreases along the moving direction of the material. The upper track mechanism includes an upper pressure plate for pressing the filter press area, and the lower track mechanism includes a lower pressure plate for supporting the filter press area. The output end of the pressure actuator is connected to the upper pressure plate and applies pressure to the upper pressure plate, and the upper pressure plate can move up and down with the output end of the pressure actuator. The folding device is used to fold the filter belt wrapped with the material into multiple layers of material, and the multiple layers of material are sent to the filter press device for dehydration.

[0038] The upper crawler mechanism and the lower crawler mechanism can adopt the mechanisms in the existing crawler filter press equipment, that is, the filter press equipment of this embodiment can be obtained by adding a pressure actuator on the basis of the existing crawler filter press equipment. The pressure actuator and the folding device can adopt existing products, and the pressure actuator adopts a hydraulic device or a pressure cylinder with adjustable output pressure.

[0039] When in use, the folding equipment can fold the filter belt wrapped with the material (sludge) into multiple layers of material. The multiple layers of material are dehydrated in the filter press equipment. Due to the presence of the pressure actuator, the upper pressure plate can move up and down according to the pressure on the material. This not only ensures that the material is continuously dehydrated under high pressure, but also ensures that the material can be smoothly transported along the narrowed filter press area to avoid jamming.

[0040] In some embodiments, the thickness of the filter press area decreases linearly along the moving direction of the material, and an angle of 0-30° is formed between the upper end surface and the lower end surface of the filter press area. The above angle and thickness can be determined according to the folded thickness of the material and the characteristics of the material itself.

[0041] In some embodiments, the filter press equipment also includes a filter press frame, the upper crawler mechanism and the lower crawler mechanism are both installed in the filter press frame, the pressure actuator is a hydraulic device, including two hydraulic cylinder groups, the two hydraulic cylinder groups are arranged front and back along the travel direction of the material, the hydraulic cylinder group includes a hydraulic cylinder, the output end of the hydraulic cylinder is connected to the upper pressure plate by bolts, the base of the hydraulic cylinder is fixedly connected to the filter press frame, and the lower pressure plate is fixedly connected to the filter press frame.

[0042] The output ends of the two hydraulic cylinder groups are connected to the feed end and the discharge end of the upper platen respectively, and the upper platen can be adjusted to a certain height and move up and down with the pressure actuator. Each hydraulic cylinder group includes two hydraulic cylinders, a total of four hydraulic cylinders, and their output ends are connected to the four corners of the upper platen respectively.

[0043] Before the filter press equipment works, the angle of the upper pressure plate can be fine-tuned by bolts. During operation, the two hydraulic cylinder groups can move up and down synchronously, driving the upper pressure plate to rise and fall steadily to adjust the pressure.

[0044] In some embodiments, Figure 2-4 As shown, the folding equipment includes a folding frame, a swing cylinder, a chain transmission mechanism, and a mounting base; the mounting base is located below the folding frame, the folding frame is connected to the mounting base via a buffer spring, the swing cylinder can be slidably installed on the folding frame forward and backward, the chain transmission mechanism is connected to the swing cylinder and drives the swing cylinder to move back and forth; a folding assembly is connected to the swing cylinder, the swing cylinder drives the folding assembly to swing back and forth, the folding assembly includes a front cloth pushing plate and a rear cloth pushing plate that are relatively arranged, the filter belt that wraps the material passes between the front cloth pushing plate and the rear cloth pushing plate, and the folding assembly moves back and forth with the swing cylinder to fold the filter belt.

[0045] The mounting base is fixedly connected to the filter press frame, a mounting rod is arranged above the folding frame, and a buffer spring is arranged between the mounting rod and the folding mechanism. The ends of the front cloth pushing plate and the rear cloth pushing plate are bent. The swing cylinder can adopt an existing product, and its output end is connected to the folding component and drives it to swing forward and backward. A linear slide rail in the front and rear directions is installed on the folding mechanism, a slide table is slidably installed on the linear slide rail, and the swing cylinder is installed on the slide table.

[0046] In some embodiments, the folding device further comprises two symmetrical pressing members arranged front and back, the pressing members are rotatably connected to the folding frame, and the lower end of the pressing members is used to press the stacked multi-layer materials; a push rod is connected to the swing cylinder, and the swing cylinder reciprocates back and forth between the front station and the rear station. When the swing cylinder moves to the front station or the rear station, the push rod presses the upper part of the corresponding pressing member, so that the lower end of the pressing member tilts up. After the push rod leaves, the pressing member is reset, and its lower end presses the newly stacked filter belt. At this time, the swing cylinder moves in the opposite direction to continue stacking the cloth.

[0047] The clamping piece is L-shaped, the inner sides of the two clamping pieces are opposite, and the middle part of the clamping piece is rotatably connected to the folding frame. A coil spring is installed on the folding mechanism, and one end of the coil spring presses against the outer side of the upper part of the clamping piece, so that the clamping piece can be quickly reset and maintained in a vertical state when the top rod leaves.

[0048] In some embodiments, a pre-dehydration device is also included, which includes a plurality of pre-pressing rollers, and the plurality of pre-pressing rollers are staggered up and down in the front-to-back direction, so that the filter belt containing the material passes around the plurality of pre-pressing rollers in a serpentine shape.

[0049] The pre-dehydration equipment also includes a tensioning roller, which tensions the filter belt so that there is a certain shear force at the winding point between the pre-pressing roller and the filter belt, so that the filter belt completes pre-dehydration in the process of moving along the pre-pressing roller, and the material (sludge) on the filter belt is spread smoothly to both sides of the filter belt to obtain a single-layer belt-shaped mud cake with uniform thickness.

[0050] In some embodiments, a discharging device is also included, which includes a discharging roller assembly that can move back and forth, and the discharging roller assembly includes two discharging rollers. The filter belt wrapped with the material passes between the two discharging rollers, and the discharging roller assembly drives the filter belt to move in the opposite direction of the folding direction, thereby pulling apart the multiple layers of material layer by layer and restoring them into a belt shape.

[0051] In some embodiments, the adaptive multi-layer filter press system also includes a scraping device. After the multi-layer materials are dehydrated and pulled apart layer by layer, the upper and lower filter belts of the wrapped materials are separated. The scraping device scrapes the material off the filter belt through a scraper knife. The scraping device can use existing products.

[0052] In some embodiments, the upper crawler mechanism and the lower crawler mechanism both include a first sprocket, a second sprocket, a crawler, a supporting net and a tensioning mechanism, the crawlers are connected end to end and surround the first sprocket and the second sprocket in a runway shape, the first sprocket and the second sprocket drive the crawlers to move, the supporting net surrounds the outer side of the crawler, and the supporting net is tensioned by the tensioning mechanism; the rear end of the supporting net of the lower crawler mechanism is located below the folding device, and the front end of the supporting net of the lower crawler mechanism is connected to the discharging device. The tensioning mechanism can adopt an existing product.

[0053] An adaptive multi-layer filter pressing method, using the above-mentioned adaptive multi-layer filter pressing system, comprises the following steps:

[0054] S1, material distribution: distribute the material on the filter belt, and send the filter belt wrapped with the material into the pre-pressing equipment;

[0055] S2, pre-pressing and dehydrating: the filter belt wrapped with the material is pre-pressed and dehydrated to form pre-dehydrated material;

[0056] S3, folding: the pre-dehydrated material enters the folding device and is folded into multiple layers of material;

[0057] S4, filter pressing: the multi-layer materials enter the filter pressing area of ​​the filter pressing equipment for dehydration. As the multi-layer materials move forward, the pressure on the multi-layer materials increases. When the pressure reaches the preset pressure value, the output end of the pressure actuator rises with the upper pressure plate, allowing the multi-layer materials to pass through the filter pressing area;

[0058] S5, unloading: After the multi-layer materials pass through the filter press area, the multi-layer materials are pulled apart to restore to belt-shaped dehydrated materials, and then the materials on the filter belt are scraped off, and the filter belt returns to the distribution equipment for distribution.

[0059] In step S4, after the multilayer material enters the filter press area of ​​the filter press equipment, it stops moving first, removes some free water, and then continues to move forward. The stopping time is maintained for a certain time. During this time, the multilayer material entering the filter press system is used for pre-pressing or high-pressure dehydration. The material that has not entered the filter press system is in the waiting area. The folding time in step S3 is consistent with the stop time in step S4 to meet the multilayer material laying time.

[0060] In some embodiments, Figure 5-6 As shown, the hydraulic device also includes a hydraulic pump, a relief valve, and an oil cylinder. The oil cylinder is used to store working fluid, and the hydraulic cylinder is a single-chamber hydraulic cylinder. The oil cylinder is connected to the oil chamber of the hydraulic cylinder through a main pipe; the hydraulic pump is arranged on the main pipe, and is used to pump working fluid (oil) into the oil chamber; an oil return branch is connected to the main pipe between the hydraulic pump and the oil cylinder, and the relief valve is arranged on the oil return branch; the relief valve can adopt an existing relief valve with adjustable opening pressure, and the oil return branch is connected to the oil cylinder.

[0061] During the working process, the hydraulic pump continuously supplies oil to meet the dynamic adjustment process of the system. Before working, adjust the angle of the upper pressure plate and the initial position according to the estimated material feed height. The working states that will appear during working are:

[0062] When the material feed height is lower than the preset feed height, the upper pressure plate is subjected to less force, the pressure of the hydraulic actuator (hydraulic cylinder) is smaller, and the oil pressure in the system is lower than the preset pressure value. At this time, the overflow valve is in a closed state, and the oil flows to the hydraulic cylinder. The output end of the hydraulic cylinder is pushed out, and the cylinder body works to move the upper pressure plate downward until it is adjusted to above the preset pressure value, and the overflow valve opens.

[0063] When the material feed height increases compared to the preset feed height, the force on the upper pressure plate increases, the pressure of the hydraulic actuator (hydraulic cylinder) increases, and the oil pressure in the system is higher than the preset pressure value. At this time, the overflow valve is in the open state, and the oil flows back to the cylinder through the overflow valve. At the same time, the hydraulic cylinder retracts, and the height of the upper pressure plate increases until it is adjusted below the preset pressure value, and the overflow valve is closed.

[0064] The ideal working state of the entire adaptive filter press equipment is that the oil pressure in the system is equal to the preset pressure value. When it is higher or lower than the preset pressure value, the above two processes are repeatedly executed.

[0065] In some embodiments, the pressure actuator can also use air pressure, electric cylinder, etc., which is mainly used to apply pressure to the upper pressure plate to force the material to filter out water under high pressure. By setting the initial pressure, the output pressure of the pressure actuator is kept constant during the working process, so that the contact pressure between the upper pressure plate connected to the pressure actuator and the material assembly remains unchanged, but the upper pressure plate will change in height as the height of the material changes.

[0066] The above embodiments are preferred implementation modes of the utility model, but the implementation modes of the utility model are not limited by the above embodiments. Any other changes, modifications, substitutions, combinations, and simplifications that do not deviate from the spirit and principle of the utility model should be equivalent replacement methods and are included in the protection scope of the utility model.

Claims

1. An adaptive multi-layer filter press system, characterized in that: The filter press comprises a filter press device and a folding device. The filter press device comprises an upper crawler mechanism, a lower crawler mechanism and a pressure actuator. A filter press area is formed between the upper crawler mechanism and the lower crawler mechanism. The thickness of the filter press area decreases along the moving direction of the material. The upper crawler mechanism includes an upper pressing plate for pressing the filter press area, and the lower crawler mechanism includes a lower pressing plate for supporting the filter press area. The output end of the pressure actuator is connected to the upper pressing plate and applies pressure to the upper pressing plate. The upper pressing plate can move up and down with the output end of the pressure actuator; The folding device is used to fold the filter belt wrapped with materials into multiple layers of materials, and the multiple layers of materials are sent to the filter press equipment for dehydration.

2. An adaptive multi-layer filter press system according to claim 1, characterized in that: Along the traveling direction of the material, the thickness of the filter press area decreases linearly, and an angle of 0-30° is formed between the upper end surface and the lower end surface of the filter press area.

3. An adaptive multi-layer filter press system according to claim 1, characterized in that: The filter press equipment also includes a filter press frame, and the upper crawler mechanism and the lower crawler mechanism are both installed in the filter press frame. The pressure actuator is a hydraulic device, including two hydraulic cylinder groups. The two hydraulic cylinder groups are arranged front and back along the travel direction of the material. The hydraulic cylinder group includes a hydraulic cylinder. The output end of the hydraulic cylinder is connected to the upper pressure plate by bolts. The base of the hydraulic cylinder is fixedly connected to the filter press frame, and the lower pressure plate is fixedly connected to the filter press frame.

4. The adaptive multi-layer filter press system according to claim 1, characterized in that: The folding equipment includes a folding frame, a swing cylinder, a chain transmission mechanism, and a mounting base; The mounting base is located below the folding frame, the folding frame is connected to the mounting base via a buffer spring, the swing cylinder is mounted on the folding frame in a manner that it can slide back and forth, and the chain transmission mechanism is connected to the swing cylinder and drives the swing cylinder to reciprocate back and forth; A folding assembly is connected to the swing cylinder, which drives the folding assembly to swing back and forth. The folding assembly includes a front cloth pushing plate and a rear cloth pushing plate that are relatively arranged. The filter belt wrapped with the material passes between the front cloth pushing plate and the rear cloth pushing plate. The folding assembly moves back and forth with the swing cylinder to fold the filter belt.

5. An adaptive multi-layer filter press system according to claim 4, characterized in that: The folding device also includes two symmetrical pressing members arranged front and back, the pressing members are rotatably connected to the folding frame, and the lower ends of the pressing members are used to press the folded multi-layer materials; A push rod is connected to the swing cylinder, and the swing cylinder moves back and forth between the front station and the rear station. When the swing cylinder moves to the front station or the rear station, the push rod pushes against the upper part of the corresponding clamping piece, so that the lower end of the clamping piece is tilted.

6. The adaptive multi-layer filter press system according to claim 1, characterized in that: It also includes a pre-dehydration device, which includes a plurality of pre-pressing rollers, which are staggered up and down in the front-to-back direction, so that the filter belt with the material passes around the plurality of pre-pressing rollers in a serpentine shape.

7. An adaptive multi-layer filter press system according to claim 4, characterized in that: It also includes a discharging device, which includes a discharging roller assembly that can move back and forth, and the discharging roller assembly includes two discharging rollers. The filter belt wrapped with the material passes between the two discharging rollers, and the discharging roller assembly drives the filter belt to move in the opposite direction of the folding direction, thereby pulling apart the multiple layers of material layer by layer and restoring them into a belt shape.

8. An adaptive multi-layer filter press system according to claim 1, characterized in that: The upper crawler mechanism and the lower crawler mechanism both include a first sprocket, a second sprocket, crawlers, a supporting net and a tensioning mechanism. The crawlers are connected end to end and surround the first sprocket and the second sprocket in a runway shape. The first sprocket and the second sprocket drive the crawlers to move. The supporting net surrounds the outer side of the crawlers, and the supporting net is tensioned by the tensioning mechanism. The rear end of the supporting net of the lower crawler mechanism is located below the folding device, and the front end of the supporting net of the lower crawler mechanism is butted against the discharging equipment.

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