Quick-change filter press

Abstract

The utility model discloses a quick-change filter press which comprises a main machine and a filter plate, the filter plate is mounted in the main machine, the bottom of the main machine is communicated with a receiving part for receiving, a motor for compressing the filter plate is arranged on one side of the main machine, the quick-change filter press further comprises a lifting device capable of moving along the length direction of the main machine, and the lifting device is used for lifting the filter plate. The lifting device comprises a vertical rod and a lifting rod capable of rotating around the axis of the vertical rod and axially sliding along the vertical rod, and a clamping part capable of being used for grabbing the filter plate is arranged at the bottom of the lifting rod. According to the plate-and-frame filter press, the design of rotating and lifting the suspender is realized on the basis of the traditional plate-and-frame filter press, so that the hoisting risk in the process of replacing the filter plate can be reduced, the filter plate is convenient to replace, and magnetic particles are not easy to introduce.

Description

Technical Field

[0001] The utility model relates to the technical field of product material filtering, and more specifically, to a quick-change filter press. Background Art

[0002] The plate and frame filter press was the first machine used in chemical dehydration. It is an intermittent pressurization machine with the advantages of high filtration pressure, small unit filtration area, strong adaptability to materials, simple structure, and convenient manufacturing. It has been widely used in industry. The main structure of the plate and frame filter press includes the tail plate, filter frame, filter plate, main beam, head plate and clamping device. The number of filter plates and filter frames used in each filter depends on the production capacity of the filter and the properties of the feed liquid. The number of frames generally ranges from 10 to 60. When assembling, the plates and frames are arranged alternately, and then the head screw is turned to make the plates and frames tightly combined.

[0003] According to the filter pressing principle and washing principle of the plate and frame filter press, in the production of PVDF (polyvinylidene fluoride), the emulsion or suspension produced by polymerization can be quickly filtered and circulated and washed until the product is washed to the qualified range. During use, if the filter plate leaks or is aged and damaged, it needs to be disassembled and replaced. Due to the heavy weight of the filter plate, it usually requires two people to operate when replacing it. This process cannot be continuous and automatic, which is very inconvenient, reduces the replacement efficiency, and increases the labor intensity of workers, which is mainly reflected in:

[0004] 1. Filter presses involved in the production of fine chemical products, such as those used in the washing process of materials such as battery separators and adhesives, have particularly high requirements for product cleanliness. Once the filter plate is found to be damaged, it is necessary to stop the machine and replace it immediately. In addition, the device for replacing the filter plate should not use a spiral lifting structure directly above the filter press. This is because when the spiral structure rotates, it will introduce more magnetic particles due to friction. These magnetic particles will directly fall into the system, affecting the quality of the finished fine chemical products;

[0005] 2. For large filter presses, the weight of a single filter plate can generally reach 100kg, and it needs to be taken from the warehouse to the site for lifting, which is rather cumbersome. The manual lifting and unloading by two people is labor-intensive, resulting in low production efficiency. Moreover, the use of hoists for lifting will also introduce more magnetic particles, resulting in unsatisfactory product safety performance. Utility Model Content

[0006] The design purpose of the utility model is to overcome the defects of the existing filter press that usually requires manual handling of filter plates, which is low in efficiency and high in labor intensity, and to provide a quick-change filter press on which a lifting structure for quickly replacing filter plates is arranged, which can save manpower, is easy to use, and is not easy to introduce magnetic particles.

[0007] The technical solution adopted by the utility model includes a main machine and a filter plate, wherein the filter plate is installed in the main machine, a receiving portion for receiving is connected to the bottom of the main machine, a motor for compressing the filter plate is arranged on one side of the main machine, and furthermore, a lifting device capable of moving along the length direction of the main machine is included, wherein the lifting device is used for lifting the filter plate, and the lifting device includes a vertical rod, a hanging rod capable of rotating around the axis of the vertical rod and capable of sliding along the axial direction of the vertical rod, and a clamping portion capable of grabbing the filter plate is arranged at the bottom of the hanging rod.

[0008] The working principle of the quick-change filter press is as follows: when a filter plate on the main engine fails, an alarm will be sounded. After the on-site personnel judge and confirm, the filtering work will be suspended, the faulty filter plate will be cleaned, and the filter plate will be replaced online using the lifting device. After cleaning the material in the filter plate, start the motor in the opposite direction to release the compression on the filter plate so that the gap between the two adjacent filter plates becomes large enough to remove the filter plate, which is called "opening the plate" in the industry. After opening the plate to the faulty filter plate, use the lifting device to move the filter plate out. The lifting rod of the lifting device has the functions of rotation and lifting. After moving to the position of the faulty filter plate, the lifting rod is moved down so that the clamping part clamps the faulty filter plate, and then the lifting rod is lifted to take out the faulty filter plate, and then the lifting rod is rotated 180 degrees to transfer the clamped faulty filter plate to the outside of the main engine. After the on-site personnel use mobile tools such as carts to transport the new filter plate to the corresponding position, the lifting rod is moved down to place the faulty filter plate on the mobile tool, and then the new filter plate is clamped from the mobile tool and the previous operation steps are performed in reverse to complete the entire disassembly of the abnormal filter plate and the installation of the normal filter plate.

[0009] Furthermore, a guide rail is arranged on the main machine along its length direction, the guide rail is slidably connected to the vertical rod, and the vertical rod moves within the length range of the guide rail.

[0010] Furthermore, a slider is provided between the suspension rod and the vertical rod, and the movement and rotation functions of the suspension rod are realized by the slider. The slider is sleeved on the vertical rod and is slidably connected to the vertical rod, and the suspension rod is rotationally connected to the slider.

[0011] Furthermore, since the weight of the filter plate may exceed 100kg, in order to ensure the bearing capacity of the suspension rod, a reinforcing rod is also provided on the lifting device, one end of the reinforcing rod is fixedly connected to the suspension rod, and the other end is fixedly connected to the slider. The reinforcing rod, the suspension rod and the slider form a triangular structure, which enhances the stability of the suspension rod.

[0012] Furthermore, the clamping part includes a relatively openable gripper, and the top of the filter plate is provided with a lifting part engaged with the gripper. The gripper can be a clip type with one end hinged, a cylinder type structure with two sides translated, or a combination of the above two.

[0013] Furthermore, it also includes an air pressure detection device and an alarm device, wherein the air pressure detection device is arranged inside each filter plate, and the air pressure detection device is communicatively connected with the alarm device. When the filter plate of the filter press is damaged, it generally manifests as air leakage, and small air leakage is difficult to detect in time. For bulk chemical production, small air leakage has little impact on the product, but for the production of fine products (PVDF), because it is used in materials such as battery diaphragms and adhesives, the cleanliness requirements of the product are particularly high. Once the filter plate leaks, the impurities in the compressed gas will be blown into the product, and in severe cases, magnetic particles will be introduced, affecting product safety. Based on this, the utility model sets an air pressure detection device inside each filter plate to detect whether the filter plate is leaking. If an abnormality is detected (such as low air source pressure of the filter plate), a signal is sent to the alarm device to remind on-site personnel to check the air tightness of the filter plate.

[0014] Furthermore, the air pressure detection device is an infrared air source power sensing probe.

[0015] Furthermore, it also includes a foldable wind hood, which covers the upper part of the main machine when unfolded, one end of the wind hood is connected to the air extractor, and the other end is slidably connected to the guide rail or fixedly connected to the lifting device.

[0016] Furthermore, the wind cover includes two parallel telescopic beams, the telescopic beams are arranged along the length direction of the main machine, and the accordion cover is connected between the telescopic beams.

[0017] Furthermore, the receiving part includes a hopper arranged at the bottom of the main machine, a screw machine is arranged at the bottom of the hopper along its length direction, the screw machine is connected to the output shaft of the screw machine motor, a discharge port and a wet material bin connected to the discharge port are arranged near one end of the screw machine motor on the bottom surface of the hopper, a washing kettle is connected to the other end of the bottom surface of the hopper, and the washing kettle is connected to the main machine through a washing pump and a reflux pipe.

[0018] Compared with the prior art, the beneficial effects of the utility model are:

[0019] 1. The utility model realizes the design of rotating lifting rod on the traditional plate and frame filter press, which can reduce the lifting risk in the process of replacing the filter plate, facilitate the replacement of the filter plate, and is not easy to introduce magnetic particles. At the same time, it can also meet the requirements of the detection of the leakage point of the filter plate, can quickly find the leakage problem of the filter plate and solve the cumbersome process of manual replacement of the filter plate;

[0020] 2. The utility model is provided with an accordion cover, through which the entire filter press is wrapped, the cleanliness of the washing process and the filter pressing process is improved, and at the same time, the hot air is extracted in time to ensure normal temperature and visibility in the workshop;

[0021] 3. The utility model is also provided with a washing kettle and a matching pump group docking, which can quickly collect materials and send the materials back after the filter plate is disassembled and cleaned, thereby reducing the pollution of materials during the disassembly process. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0023] Figure 2 It is a reference schematic diagram of the lifting device state one;

[0024] Figure 3 It is a reference schematic diagram of the lifting device state 2;

[0025] Figure 4 It is a reference schematic diagram of the lifting device state three;

[0026] Figure 5 This is a schematic diagram of the structure of the gripper.

[0027] In the attached figure:

[0028] 1-main machine; 2-filter plate; 3-motor; 4-guide rail; 5-lifting device; 501-vertical pole; 502-suspender rod; 503-slider; 504-reinforcement rod; 505-grip; 6-air pressure detection device; 7-alarm device; 8-wind hood; 9-vacuum fan; 10-telescopic beam; 11-hopper; 12-screw machine; 13-screw machine motor; 14-discharge port; 15-wet material bin; 16-washing kettle; 17-washing pump; 18-reflux pipe. DETAILED DESCRIPTION

[0029] The utility model is further described below in conjunction with specific implementation methods. The drawings are only used for illustrative purposes and cannot be understood as limiting the present invention. In order to better illustrate the present embodiment, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product. For those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.

[0030] The same or similar reference numerals in the drawings of the embodiments of the present utility model correspond to the same or similar parts; in the description of the present utility model, it should be understood that if the terms "front", "rear", "left", "right" and the like indicate an orientation or positional relationship based on the orientation or positional relationship shown in the drawings, it is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the positional relationship in the drawings are only used for exemplary explanations and cannot be understood as limitations on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances. In addition, in the present utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" can explicitly or implicitly include at least one of the features.

[0031] Embodiment 1

[0032] like Figure 1 and Figure 2 As shown, this embodiment provides a quick-change filter press, including a mainframe 1 and filter plates 2, the number of filter plates 2 varies from 10 to 60, arranged according to actual production needs, and all filter plates 2 are sequentially installed in the mainframe 1, the bottom of the mainframe 1 is connected to a receiving portion for receiving filtrate, and a motor 3 for compressing the filter plates 2 is provided on one side of the mainframe 1 along the arrangement direction of the filter plates 2. The motor 3 is fixedly mounted on the mainframe 1, and its output shaft passes through the side wall of the mainframe 1 and abuts against the filter plate 2 closest to the motor 3. When the motor 3 is started, its output shaft will apply pressure toward the filter plate 2, thereby squeezing out the filtrate in the filter plate 2.

[0033] In addition, this embodiment also includes a lifting device 5 that can move along the length direction of the main machine 1, and the lifting device 5 is used to hang the filter plate 2. This is achieved by a guide rail 4 set on one of the side walls of the main machine 1. The lifting device 5 includes a vertical rod 501, and a hanging rod 502 that can rotate around the axis of the vertical rod 501 and can slide along the axial direction of the vertical rod 501. The guide rail 4 is set along the length direction of the main machine 1, and the vertical rod 501 is slidably connected to the guide rail 4 and moves horizontally within the length range of the guide rail 4. Figure 5, a clamping part that can be used to grab the filter plate 2 is provided at the bottom of the suspension rod 502, and the clamping part is a gripper 505 that can be relatively opened and closed. Two hydraulic rods (not shown in the figure) are horizontally arranged between the gripper 505 and the suspension rod 502. When grabbing the filter plate 2, the hydraulic rods contract, driving the two grippers 505 to move in opposite directions, that is, reducing the distance between the grippers 505, so that the grippers 505 can clamp the filter plate 2, thereby achieving the effect of lifting the filter plate 2. A lifting part is provided on the top of the filter plate 2, and the lifting part is two horizontally arranged concave grooves. When the grippers 505 are clamped, they are just clamped in the grooves, which can prevent the filter plate 2 from falling.

[0034] In some other embodiments, only one hydraulic rod may be provided between the gripper 505 and the suspension rod 502, and both ends of the hydraulic rod are fixedly connected to the gripper 505 respectively, and the grippers 505 are hinged to each other. The gripper 505 is closed or opened by the extension and retraction of the hydraulic rod, and its principle is the same as that of a commonly used clamp.

[0035] In order to prevent the lifting device 5 from introducing magnetic particles into the main unit 1 or the filter plate 2 during operation, thereby affecting the filtering effect, the lifting device 5 of this embodiment is arranged on the side of the main unit 1. Figure 2 , the guide rail 4 is arranged on one of the side walls of the main machine 1, and the vertical rod 501 of the lifting device 5 will not appear directly above the main machine 1 during the movement, so the introduction of magnetic particles can be avoided to a great extent. In this embodiment, in order to realize the function that the suspension rod 502 can rotate around the axis of the vertical rod 501 and can slide along the axial direction of the vertical rod 501, a slider 503 is arranged between the vertical rod 501 and the suspension rod 502, and the slider 503 is sleeved on the vertical rod 501 and slidably connected to the vertical rod 501, and the suspension rod 502 is rotatably connected to the slider 503. The two connecting parts, that is, the parts where magnetic particles may be generated due to friction, are arranged directly above the guide rail 4, thereby avoiding the main machine 1.

[0036] Since the weight of a single filter plate 2 may exceed 100 kg, in order to ensure the bearing capacity of the suspension rod 502, a reinforcing rod 504 is also provided on the lifting device 5. One end of the reinforcing rod 504 is fixedly connected to the free end of the suspension rod 502, and the other end is fixedly connected to the slider 503. The reinforcing rod 504, the suspension rod 502 and the slider 503 form a triangular structure, which enhances the stability of the suspension rod 502.

[0037] The working principle of this embodiment is as follows: when a filter plate 2 on the main machine 1 fails, an alarm will be sounded. After the on-site personnel have made a judgment and confirmed it, the filtering work will be suspended, the failed filter plate 2 will be cleaned, and the filter plate 2 will be replaced online using the lifting device 5. After the material in the filter plate 2 is cleaned, the starter motor 3 is started in the opposite direction to release the compression on the filter plate 2 so that the gap between two adjacent filter plates 2 becomes large enough to remove the filter plate 2, which is called "opening the plate" in the industry. After opening the plate to the failed filter plate 2, the lifting device 5 is used to remove the filter plate 2. The initial position of the suspension rod 502 is on the outside of the main machine 1 (i.e., state one). Figure 2 As shown, the suspension rod 502 rotates 180° around the slider 503 so that it is located directly above the host 1 (see Figure 3 , which is state 2), then the vertical rod 501 is controlled to slide on the guide rail 4 to the position of the faulty filter plate 2, and the slider 503 moves downward along the vertical rod 501 to the position where the gripper 505 can clamp the filter plate 2 (such as Figure 4 As shown in FIG. 3 , the gripper 505 is started to clamp and fix the target filter plate 2. Next, the slider 503 is controlled to move upward along the vertical rod 501 to completely remove the filter plate 2, and then the suspension rod 502 is rotated 180° around the slider 503 until the suspension rod 502 is in the position shown in FIG. Figure 2 The initial position shown is the outside of the main unit 1. At this time, the on-site personnel use a cart to transport the new filter plate 2 to the corresponding position, and then move the suspension rod 502 downward to place the faulty filter plate 2 on the cart, and then clamp the new filter plate 2 from the cart, and perform the previous operation steps in reverse to complete the disassembly of the abnormal filter plate 2 and the installation of the normal filter plate 2.

[0038] Embodiment 2

[0039] See also Figure 1 The present embodiment provides another quick-change filter press, including a main unit 1 and a filter plate 2, wherein the filter plate 2 is installed in the main unit 1, and a receiving portion for receiving filtrate is provided at the bottom of the main unit 1, and a motor 3 for compressing the filter plate 2 is provided on one side of the main unit 1. In addition, a lifting device 5 capable of moving along the length direction of the main unit 1 is included, and the lifting device 5 is used to hoist the filter plate 2. The lifting device 5 includes a vertical rod 501, a suspension rod 502 capable of rotating around the axis of the vertical rod 501 and capable of sliding along the axial direction of the vertical rod 501, and a clamping portion capable of grabbing the filter plate 2 is provided at the bottom of the suspension rod 502.

[0040] When the filter plate 2 of the filter press is damaged, it generally manifests as air leakage, and small air leakage is difficult to detect in time. For bulk chemical production, small air leakage has little effect on the product, but for the production of fine products (PVDF), because it is used in materials such as battery separators and adhesives, the cleanliness requirements of the product are particularly high. Once the filter plate 2 leaks, impurities in the compressed gas will be blown into the product, and in severe cases, magnetic particles will be introduced, affecting product safety. Based on this, the present embodiment further provides an air pressure detection device 6, which is arranged inside each filter plate 2 to detect whether the filter plate 2 is leaking. If an abnormality is detected (such as low air source pressure of the filter plate 2), a signal is sent to the alarm device 7 to remind on-site personnel to check the air tightness of the filter plate.

[0041] The air pressure detection device 6 is an infrared air source power induction probe, and the infrared air source power induction probe is an existing mature technology.

[0042] The alarm device 7 is a sound and light alarm, which is arranged on the top of the vertical pole 501. When the sound and light alarm receives the signal from the air pressure detection device 6, it will flash and emit a buzzer to remind the on-site personnel to check.

[0043] Embodiment 3

[0044] In the production process of raw materials for lithium batteries, since the main unit 1 of the filter press is a semi-exposed device, it is not conducive to controlling the cleanliness of the product. At the same time, hot water is generally used to wash the raw material PVDF of lithium batteries, and a large amount of water vapor will be generated during the washing process. It is necessary to exhaust the air above the main unit 1 of the filter press in time to ensure that the temperature and visibility in the workshop are normal, and to avoid a large amount of water vapor affecting the equipment in the workshop and causing a short circuit. Figure 1 As shown, the difference between this embodiment and the second embodiment is that this embodiment is also provided with a foldable wind hood 8, which covers the upper part of the main machine 1 after being unfolded, and one end of the wind hood 8 is connected to the vacuum fan 9, and the other end is slidably connected to the guide rail 4.

[0045] In some other embodiments, the other end of the wind cover 8 may also be fixedly connected to the lifting device 5 .

[0046] The folding of the wind hood 8 is achieved by a telescopic beam 10. Specifically, two telescopic beams 10 are arranged in parallel, and the spacing between the telescopic beams 10 is consistent with the width of the main unit 1. The telescopic beams 10 are arranged along the length direction of the main unit 1, and an accordion cover is connected between the telescopic beams 10, and the accordion cover is for facilitating the folding of the wind hood 8. When the telescopic beams 10 are retracted, the wind hood 8 is folded to expose the main unit 1 and the filter plate 2, which is convenient for feeding, replacement, maintenance and other processes. When the telescopic beams 10 are unfolded, the wind hood 8 is unfolded and covers the top of the main unit 1, and the vacuum pump 9 is started to discharge the water vapor and hot air emitted by the main unit 1 in time.

[0047] Embodiment 4

[0048] like Figure 1 As shown, on the basis of any of the above embodiments, the receiving part includes a hopper 11 arranged at the bottom of the main machine 1, and the hopper 11 is conical, which is convenient for discharging the filter material from the bottom of the hopper 11. A screw machine 12 is arranged at the bottom of the hopper 11 along its length direction, and the screw machine 12 is connected to the output shaft of the screw machine motor 13. The screw machine motor 13 can rotate forward or reverse. When rotating, its output shaft will drive the screw machine 12 to rotate synchronously. The screw machine 12 is a horizontally arranged columnar object, and an outwardly protruding spiral blade is arranged on its axial side wall. When the screw machine 12 rotates, the spiral blade will move the material in the hopper 11 in one direction. By controlling the forward or reverse rotation of the screw machine 12, the material is moved in the target direction.

[0049] The bottom surface of the hopper 11 is provided with a discharge port 14 and a wet material bin 15 connected to the discharge port 14 at one end near the screw motor 13. In a normal filtering process, the screw motor 13 rotates forward, so that the material in the hopper 11 moves toward the discharge port 14, enters the wet material bin 15 through the discharge port 14, and then enters the next process.

[0050] When the filter plate 2 fails and needs to be replaced, first close the discharge port 14, open the filter plates 2 one by one, and pour all the materials into the hopper 11. Since the materials may not have completely completed the filtering or washing process at this time, it is very wasteful to discard them directly, but the materials have to be cleaned out because the filter plates 2 need to be replaced. Based on this, a washing kettle 16 is connected to the other end of the bottom surface of the hopper 11, and the washing kettle 16 is connected to the main machine 1 through a washing pump 17 and a reflux pipe 18. After the material is transferred to the hopper 11, pour clean water with a suitable temperature into the hopper 11, and turn on the screw machine motor 13 to reverse, so that the mixture of the material and the clean water enters the washing kettle 16, and stirs the material in the washing kettle 16. Generally, the stirring time lasts for 10-20 minutes. Finally, turn on the washing pump 17, and transport the material after stirring back to the main machine 1 through the reflux pipe 18, and return it to the filter press.

[0051] In the specific contents of the above-mentioned specific implementation methods, the various technical features can be combined in any non-contradictory manner. In order to make the description concise, not all possible combinations of the above-mentioned technical features are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0052] Obviously, the above embodiments of the utility model are only examples for clearly explaining the utility model, and are not intended to limit the implementation methods of the utility model. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made on the basis of the above description. It is not necessary and impossible to list all the implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the utility model should be included in the protection scope of the claims of the utility model.

Claims

1. A quick-change filter press, comprising a main unit (1) and a filter plate (2), wherein the filter plate (2) is installed in the main unit (1), a receiving portion for receiving filtrate is provided at the bottom of the main unit (1), and a motor (3) for compressing the filter plate (2) is provided on one side of the main unit (1), characterized in that: It also comprises a lifting device (5) capable of moving along the length direction of the main machine (1), the lifting device (5) comprising a vertical rod (501), a suspension rod (502) capable of rotating around the axis of the vertical rod (501) and capable of sliding along the axial direction of the vertical rod (501), and a clamping portion capable of grasping the filter plate (2) is provided at the bottom of the suspension rod (502).

2. The quick-change filter press according to claim 1, characterized in that: A guide rail (4) is provided on the main machine (1) along its length direction, and the guide rail (4) is slidably connected to the vertical rod (501).

3. The quick-change filter press according to claim 1, characterized in that: A slider (503) is provided between the suspension rod (502) and the vertical rod (501); the slider (503) is sleeved on the vertical rod (501) and is slidably connected to the vertical rod (501); the suspension rod (502) and the slider (503) are rotatably connected.

4. The quick-change filter press according to claim 3, characterized in that: It also includes a reinforcing rod (504), one end of which is fixedly connected to the suspension rod (502), and the other end of which is fixedly connected to the sliding block (503); the reinforcing rod (504), the suspension rod (502) and the sliding block (503) form a triangular structure.

5. The quick-change filter press according to claim 1, characterized in that: The clamping portion comprises a gripper (505) which is relatively openable and closable, and a lifting portion (201) which is clamped with the gripper (505) is provided on the top of the filter plate (2).

6. The quick-change filter press according to claim 1, characterized in that: It also includes an air pressure detection device (6) and an alarm device (7), wherein the air pressure detection device (6) is arranged inside each filter plate (2), and the air pressure detection device (6) is communicatively connected with the alarm device (7).

7. The quick-change filter press according to claim 6, characterized in that: The air pressure detection device (6) is an infrared air source power sensing probe.

8. The quick-change filter press according to claim 1, characterized in that: It also includes a foldable wind hood (8), which covers the upper part of the main machine (1) when unfolded, one end of the wind hood (8) is connected to an air extractor (9), and the other end is slidably connected to the guide rail (4) or fixedly connected to the lifting device (5).

9. The quick-change filter press according to claim 8, characterized in that: The wind cover (8) comprises two parallel telescopic beams (10), the telescopic beams (10) being arranged along the length direction of the main machine (1), and the accordion cover is connected between the telescopic beams (10).

10. The quick-change filter press according to claim 1, characterized in that: The receiving portion comprises a hopper (11) arranged at the bottom of the main machine (1), a screw machine (12) being arranged at the bottom of the hopper (11) along its length direction, the screw machine (12) being connected to the output shaft of the screw machine motor (13), a discharge port (14) and a wet material bin (15) connected to the discharge port (14) being arranged at one end of the bottom surface of the hopper (11) close to the screw machine motor (13), and a washing kettle (16) being connected to the main machine (1) via a washing pump (17) and a return pipe (18).

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