A ceramic mud production filter press

Abstract

The utility model discloses a kind of ceramic clay production filter press, it is related to ceramic production process technical field, including collection component, the collection component includes workstation;Filter pressing component, the filter pressing component includes support plate, the filter pressing component is used to extrude filter clay;And cleaning component, the cleaning component includes portal frame, the portal frame both ends bottom slidingly connected with portal slide, the both sides of portal slide and the both sides top of support plate are fixedly connected.The utility model moves to the filter plate above by drive motor and makes portal frame, then electric push rod one makes support shell move with hanger, simultaneously transmission motor makes rolling brush rotate, then sweeps residual clay on filter plate, when part residual clay is not cleaned when sweeping, start external water pump, so that spray head is washed to clay, to prevent by scraper when being cleaned to filter plate, cannot effectively clean filter plate, long-term so can lead to filter plate blockage, affect filter press work efficiency.

Description

Technical Field

[0001] This utility model relates to the field of ceramic production technology, and in particular to a filter press for ceramic clay production. Background Technology

[0002] Ceramic clay is a key raw material for making ceramic products. To achieve different output effects, the clay is processed by using raw material ratios and adding additives. Finally, a filter press is used to filter out excess water from the clay before further processing.

[0003] A search revealed a ceramic mud filter press (application number: 202420446425.4) in the patent database. This technical solution uses a rectangular scraper welded to the bottom of the linkage plate to clean the residual filter cake, which greatly reduces the wear on the filter plate and indirectly extends the service life of the filter plate.

[0004] However, filter plates are generally rectangular with raised edges and a recessed center. The scraper is not very effective at cleaning the recessed part of the filter plate. Over time, this may cause the filter plate to become clogged, affecting the working efficiency of the filter press.

[0005] Therefore, it is necessary to invent a filter press for ceramic clay production to solve the above problems. Utility Model Content

[0006] The purpose of this utility model is to provide a filter press for ceramic clay production. A drive motor moves the gantry frame, and an electric push rod moves the support shell and hanger up and down. Simultaneously, a transmission motor rotates two sets of roller brushes to clean residual clay from the filter plate surface. When some residual clay cannot be cleaned by the roller brushes, an external water pump can be activated to flush the clay with a spray nozzle. At the same time, a blower blows air through the air duct to the roller brushes to accelerate their drying. This prevents the filter plates from being ineffectively cleaned by the scraper, which, over time, leads to filter plate blockage and affects the filter press's efficiency. This invention addresses the problem mentioned in the background art where the scraper is ineffective at cleaning the concave areas of the filter plate, potentially causing blockage and reduced filter press efficiency.

[0007] According to one aspect of this disclosure, a filter press for producing ceramic clay is provided, comprising:

[0008] Collection component, the collection component including a workbench;

[0009] A filter press assembly, comprising a support plate, is used to compress and filter sludge; and

[0010] The cleaning assembly includes a gantry frame with gantry carriages slidably connected to the bottom of both ends. The gantry carriages are fixedly connected to the top of both sides of a support plate. A drive motor is inserted and fixedly fixed to one side of the gantry carriage, and a screw is fixedly connected to the output end of the drive motor. The screw is threadedly connected to the gantry frame. Electric push rods are fixedly installed on both sides of the bottom of the gantry frame. A support shell is fixedly connected to the output end of the electric push rods. Hangers are fixedly connected to both sides of the support shell, and a transmission motor is fixedly connected to one end of each hanger. The drive wheel is fixedly connected to the outlet end. The hanger is rotatably inserted with a roller brush. There are two sets of roller brushes, which are symmetrically arranged around the center of the hanger. The drive wheel is fixedly connected to one set of roller brushes. A belt is sleeved on the outer wall of the drive wheel. The two sets of roller brushes are connected by belt drive. A water pipe is fixedly installed at the end of the hanger away from the drive motor. A nozzle is fixedly installed on the outer wall of the water pipe. An air duct is fixedly installed at the end of the support shell near the drive motor. Arc-shaped covers are fixedly installed on both sides of the bottom of the support shell. An air outlet is opened at the center of the bottom of the support shell.

[0011] According to at least one embodiment of the present disclosure, a filter press for producing ceramic clay has a feeding trough on the top of the workbench, rotating rod grooves at both ends of the feeding trough, and drainage channels at the ends of the rotating rod grooves away from the feeding trough.

[0012] According to at least one embodiment of the present disclosure, a filter press for producing ceramic clay has a rotating rod rotatably connected inside the rotating rod groove, and an inclined cover is fixedly connected to the outer wall of the rotating rod, the inclined cover being located above the feeding trough.

[0013] According to at least one embodiment of the present disclosure, a filter press for producing ceramic clay has an electric push rod at the top of the inclined cover. The electric push rod is rotatably connected to two fixed seats at both ends. There are two sets of fixed seats, which are symmetrically arranged with the electric push rod as the center. The two sets of fixed seats are fixedly connected to the inclined cover and the support plate respectively. A receiving cart is provided at the bottom of the feeding trough.

[0014] According to at least one embodiment of the present disclosure, a filter press for producing ceramic clay includes a feeding trough with support plates on both sides. The bottom of the support plates is fixedly connected to the top of the workbench. A hydraulic press is inserted and fixedly connected to the left support plate. A pressure plate is fixedly connected to the output end of the hydraulic press. A filter plate is provided on the side of the pressure plate away from the hydraulic press. Slider blocks are fixedly installed at both ends of the filter plate. The sliders are slidably connected to a filter plate slide frame. The two sides of the filter plate slide frame are fixedly connected to the support plates.

[0015] According to at least one embodiment of the present disclosure, a filter press for producing ceramic clay includes a chain at the bottom of the slider, one end of which is fixedly connected to a filter plate and the other end of which is fixedly connected to a pressure plate. A drain pipe is provided at the bottom of the chain, one end of which is inserted and fixedly connected to the filter plate, and the other end of which is in contact with the inner surface of the drainage channel. A fixing plate is fixedly installed on the right support plate near the filter plate, and the fixing plate is fixedly connected to the filter plate by the chain.

[0016] The technical effects and advantages of this utility model are as follows:

[0017] When the filter press is ready to unload sludge, the hydraulic press drives the pressure plate to retract, and simultaneously the chain and slider drive the filter plate to retract, while the sludge cake falls into the receiving cart below. Then, the drive motor moves the gantry frame above the filter plate through the screw. Immediately afterward, the electric push rod operates, which moves the support shell and hanger up and down. At the same time, the drive motor rotates, causing the drive wheel to drive the belt, thereby rotating the two sets of roller brushes to clean the residual sludge on the surface of the filter plate. When some residual sludge cannot be cleaned by the roller brushes, an external water pump can be started to deliver water to the nozzles through the water pipe to flush the sludge. At the same time, the blower blows air through the air duct to the roller brushes to accelerate the drying of the roller brushes and prevent the roller brushes from being damp, which would affect the cleaning efficiency. This is to prevent the scraper from being unable to effectively clean the filter plate, which would lead to filter plate blockage and affect the working efficiency of the filter press in the long run. Attached Figure Description

[0018] The accompanying drawings illustrate exemplary embodiments of the present disclosure and, together with the description thereof, serve to explain the principles of the present disclosure. These drawings are included to provide a further understanding of the present disclosure and are incorporated in and constitute a part of this specification.

[0019] Figure 1 This is a schematic diagram of the overall structure of the filter press state of a filter press for producing ceramic clay according to one embodiment of the present disclosure.

[0020] Figure 2 This is a schematic diagram of the overall structure of a filter press for ceramic clay production in the unloading state according to one embodiment of the present disclosure.

[0021] Figure 3 This is a cross-sectional structural diagram of the filter press assembly, cleaning assembly, and workbench of a filter press for producing ceramic clay according to one embodiment of the present disclosure.

[0022] Figure 4 This is a schematic diagram of the cleaning components and filter plate structure of a filter press for producing ceramic clay according to one embodiment of the present disclosure.

[0023] Figure 5This is a schematic diagram of the support shell, hanger drive motor, and filter plate structure of a filter press for ceramic clay production according to one embodiment of the present disclosure.

[0024] Figure 6 This is a schematic diagram showing the disassembled structure of the support shell, hanger, drive motor, and roller brush of a filter press for ceramic clay production according to one embodiment of this disclosure.

[0025] Figure 7 This is a schematic diagram of the frame, roller brush, water pipe and drive motor structure of a filter press for ceramic clay production according to one embodiment of the present disclosure.

[0026] Figure 8 This is a schematic diagram of the collection component structure of a filter press for ceramic clay production according to one embodiment of the present disclosure.

[0027] Figure 9 This is a cross-sectional structural diagram of the collection component of a filter press for producing ceramic clay according to one embodiment of the present disclosure.

[0028] Figure 10 This is a schematic cross-sectional view of the inclined cover, rotating rod groove, and drainage channel of a filter press for producing ceramic clay according to one embodiment of the present disclosure.

[0029] The specific labels in the attached figures are as follows:

[0030] 100. Collection component; 101. Workbench; 102. Discharge chute; 103. Rotary rod groove; 104. Drainage ditch; 105. Rotary rod; 106. Sloping cover; 107. Electric push rod one; 108. Fixed base; 109. Receiving cart;

[0031] 110. Filter press assembly; 111. Support plate; 112. Hydraulic press; 113. Pressure plate; 114. Filter plate; 115. Sliding block; 116. Filter plate carriage; 117. Chain; 118. Drain pipe; 119. Fixing plate;

[0032] 120. Cleaning assembly; 121. Gantry frame; 122. Gantry slide; 123. Drive motor; 124. Screw; 125. Electric push rod II; 126. Support shell; 127. Hanger; 128. Drive motor; 129. Drive wheel; 130. Belt; 131. Roller brush; 132. Water pipe; 133. Nozzle; 134. Air duct; 135. Curved cover; 136. Air outlet. Detailed Implementation

[0033] For descriptive purposes, this disclosure may use spatial relative terms such as “below,” “under,” “below,” “down,” “above,” “above,” “higher,” and “side (e.g., in a “sidewall”)” to describe the relationship between one component and another component as shown in the accompanying drawings. In addition to the orientations depicted in the drawings, the spatial relative terms are also intended to encompass different orientations of the device during use, operation, and / or manufacture. For example, if the device in the drawings is flipped, a component described as “below” or “under” other components or features would subsequently be positioned “above” said other components or features. Thus, the exemplary term “below” can encompass both “above” and “below” orientations. Furthermore, the device may be otherwise positioned (e.g., rotated 90 degrees or in other orientations), thus interpreting the spatial relative descriptive terms used herein accordingly.

[0034] Figure 1 This is a schematic diagram of the overall structure of the filter press state of a filter press for producing ceramic clay according to one embodiment of the present disclosure.

[0035] Figure 2 This is a schematic diagram of the overall structure of a filter press for ceramic clay production in the unloading state according to one embodiment of the present disclosure.

[0036] Figure 3 This is a cross-sectional structural diagram of the filter press assembly 110, cleaning assembly 120 and workbench 101 of a filter press for producing ceramic clay according to one embodiment of the present disclosure.

[0037] Figure 4 This is a schematic diagram of the cleaning assembly 120 and filter plate 114 of a filter press for ceramic clay production according to one embodiment of the present disclosure.

[0038] Figure 5 This is a schematic diagram of the support shell 126, hanger 127, drive motor 128 and filter plate 114 of a filter press for ceramic clay production according to one embodiment of the present disclosure.

[0039] Figure 6 This is a schematic diagram showing the disassembled structure of the support shell 126, hanger 127, drive motor 128, and roller brush 131 of a filter press for ceramic clay production according to one embodiment of the present disclosure.

[0040] Figure 7 This is a schematic diagram of the structure of the frame 127, roller brush 131, water pipe 132 and drive motor 128 of a filter press for ceramic clay production according to one embodiment of the present disclosure.

[0041] Figure 8This is a schematic diagram of the collection component 100 of a filter press for producing ceramic clay according to one embodiment of the present disclosure.

[0042] Figure 9 This is a cross-sectional structural diagram of the collection component 100 of a filter press for producing ceramic clay according to one embodiment of the present disclosure.

[0043] Figure 10 This is a cross-sectional structural diagram of the inclined cover 106, rotating rod groove 103, and drainage channel 104 of a filter press for producing ceramic clay according to one embodiment of the present disclosure.

[0044] like Figures 1-3 As shown, the filter press for ceramic clay production disclosed herein may include components such as a collection component 100, a filter pressing component 110, and a cleaning component 120.

[0045] like Figure 1-7 As shown, this disclosure includes:

[0046] Collection component 100, collection component 100 includes workbench 101;

[0047] Filter press assembly 110, including support plate 111, is used to compress and filter sludge; and

[0048] Cleaning assembly 120 includes a gantry frame 121. Gantry slides 122 are slidably connected to the bottom of both ends of the gantry frame 121. The two sides of the gantry slides 122 are fixedly connected to the top of both sides of the support plate 111. A drive motor 123 is inserted and fixedly connected to one side of the gantry slides 122. A screw 124 is fixedly connected to the output end of the drive motor 123 and threadedly connected to the gantry frame 121. Electric push rods 125 are fixedly installed on both sides of the bottom of the gantry frame 121. A support shell 126 is fixedly connected to the output end of the electric push rods 125. Hangers 127 are fixedly connected to both sides of the support shell 126. One end of each hanger 127 is fixedly connected to... A drive motor 128 has a drive wheel 129 fixedly connected to its output end. A hanger 127 is rotatably connected to two sets of roller brushes 131, symmetrically arranged around the center of the hanger 127. The drive wheel 129 is fixedly connected to one set of roller brushes 131, and a belt 130 is fitted onto the outer wall of the drive wheel 129. The two sets of roller brushes 131 are connected via the belt 130. A water pipe 132 is fixedly installed at the end of the hanger 127 away from the drive motor 128, and a nozzle 133 is fixedly installed on the outer wall of the water pipe 132. An air duct 134 is fixedly installed at the end of the support shell 126 closest to the drive motor 128. 6. Arc-shaped covers 135 are fixedly installed on both sides of the bottom. An air outlet 136 is opened at the center of the bottom of the support shell 126. The gantry slide 122 is used to support the entire cleaning assembly 120. The gantry frame 121 inside the gantry slide 122 can drive the screw 124 to rotate and move left and right through the drive motor 123, which facilitates the cleaning of the filter plate 114. The electric push rod 125 can drive the support shell 126 and the hanger 127 to move the roller brush 131 and water pipe 132 up and down, so that the areas that the roller brush 131 cannot clean can be rinsed clean by the water pipe 132. The hanger 127 is used to support the roller brush 131 and the drive motor 128 and A fixed water pipe 132 and a support shell 126 are used to fix the air duct 134. A water pump is connected to the water pipe 132, which can deliver water to the nozzle 133. A fan is connected to the air duct 134, which can quickly dry the roller brush 131 through the air outlet 136. The drive motor 128 works to rotate the drive wheel 129, and then the belt 130 makes the two sets of rollers rotate simultaneously, so as to clean the two sides of the filter plate 114 at the same time. Soft bristles are fixed on the outer wall of the roller brush 131 to facilitate cleaning the concave part of the filter plate 114 in the middle. The arc-shaped cover 135 can allow the air blown out of the fan to blow onto the bristles on the roller brush 131 through the air outlet 136.

[0049] Therefore, when the filter press is ready to unload sludge, the hydraulic press 112 drives the pressure plate 113 to retract, and at the same time, the chain 117 and the slider 115 drive the filter plate 114 to retract. Simultaneously, the sludge cake falls into the receiving cart 109 below. Then, the drive motor 123 moves the gantry frame 121 above the filter plate 114 through the screw 124. Immediately afterwards, the electric push rod 107 operates, which can move the support shell 126 and the hanger 127 up and down. At the same time, the drive motor 128 rotates, causing the drive wheel 129 to drive the belt 130 to rotate, thereby causing the two sets of roller brushes 131 to rotate. Then, clean the residual mud on the surface of the filter plate 114. When some residual mud cannot be cleaned by the roller brush 131, the external water pump can be started to deliver water from the water pipe 132 to the nozzle 133 to flush the mud. At the same time, the blower blows air through the air pipe 134 to accelerate the drying of the roller brush 131 and prevent the roller brush 131 from being affected by moisture, thus preventing the filter plate 114 from being unable to be effectively cleaned by the scraper. If this happens for a long time, the filter plate 114 will be clogged, affecting the working efficiency of the filter press.

[0050] like Figure 1-3 As shown in Figures 8, 9, and 10, in a preferred embodiment, a material discharge trough 102 is provided on the top of the workbench 101. Rotary rod grooves 103 are provided at both ends of the material discharge trough 102. Drainage channels 104 are provided at both ends of the rotary rod grooves 103 away from the material discharge trough 102. A rotating rod 105 is rotatably connected inside the rotary rod groove 103. A slanted cover 106 is fixedly connected to the outer wall of the rotating rod 105. The slanted cover 106 is located above the material discharge trough 102. An electric push rod 107 is provided on the top of the slanted cover 106. Fixed seats 108 are rotatably connected to both ends of the electric push rod 107. Two sets of fixed seats 108 are provided, symmetrically arranged around the electric push rod 107. The two sets of fixed seats 108 are fixedly connected to the slanted cover 106 and the support plate 111, respectively. A receiving cart 109 is provided at the bottom of the material discharge trough 102. The rotary rod groove... 103 is used to place the rotating rod 105. The rotating rod 105 can rotate in the rotating rod groove 103, so that the inclined cover 106 can open to both sides or close to the center. The top of the inclined cover 106 is provided with a sealing strip to prevent sewage from flowing into the collection cart 109 below the inclined cover 106 when the nozzle 133 is cleaning the filter plate 114. The end of the rotating rod groove 103 near the drainage ditch 104 is inclined so that sewage can flow through the inclined cover 106 to the drainage ditch 104. The inclined cover 106 and the rotating rod 105 are made of waterproof material. The drainage ditch 104 is connected to a collection device to facilitate the secondary use of sewage after filtration. The two sets of fixed seats 108 are rotatably connected to the electric push rod 125 through pins. When the electric push rod 125 is working, it can make the inclined cover 106 open to both sides or close to the center so that the mud cake on top can fall into the collection cart 109.

[0051] Therefore, when the hydraulic press 112 is ready to unload the mud, the inclined cover 106 is in an open state, and the mud cake falls directly into the receiving car 109 through the discharge chute 102. Then, the electric push rod 125 is activated, causing the inclined cover 106 to retract towards the center. Then, the upper cleaning component 120 works. When the nozzle 133 sprays water to clean the filter plate 114, the sewage drips down and then slides through the inclined cover 106 to the drainage ditch 104 to prevent sewage from directly splashing onto the mud cake when cleaning the filter plate 114, thus affecting the mud cake effect.

[0052] like Figure 1-5 As shown in this disclosure, support plates 111 are provided on both sides of the feeding trough 102. The bottom of the support plates 111 is fixedly connected to the top of the workbench 101. A hydraulic press 112 is inserted and fixedly connected to the left support plate 111. A pressure plate 113 is fixedly connected to the output end of the hydraulic press 112. A filter plate 114 is provided on the side of the pressure plate 113 away from the hydraulic press 112. Slider blocks 115 are fixedly installed at both ends of the filter plate 114. A filter plate carriage 116 is slidably connected to the sliders 115. The filter plate carriage 116 is fixedly connected to the support plates 111 on both sides. A chain 117 is provided at the bottom of the slider 115. One end of the chain 117 is fixedly connected to the filter plate 114, and the other end of the chain 117 is fixedly connected to the pressure plate 113. A drain pipe 118 is provided at the bottom of the chain 117. One end of the drain pipe 118 is inserted into the filter plate 114. The drain pipe 118 is fixed, and the other end of the drain pipe 118 contacts the inner surface of the drainage ditch 104. A fixing plate 119 is fixedly installed on the right side of the support plate 111 near the filter plate 114. The fixing plate 119 is fixedly connected to the filter plate 114 by a chain 117. The support plate 111 is used to support and fix the filter press assembly 110 and the cleaning assembly 120. The slider 115 can move the filter plate 114 left and right by the filter plate slide 116. The chain 117 can drive all the filter plates 114 to move simultaneously by the pressure plate 113 when the hydraulic press 112 is working. The drain pipe 118 can drain the sewage through the drainage ditch 104 during the filter press. The pressure plate 113 and the fixing plate 119 can make the filter plate 114 form a chamber when the hydraulic press 112 is hydraulic, so that the mud can form a mud cake.

[0053] Therefore, when the filter press is working, the hydraulic press 112 pushes the pressure plate 113 forward, and at the same time, the filter plate 114 moves towards the fixed plate 119 through the slider 115 and the chain 117. Then, slurry is delivered to the filter plate 114, and the water in the slurry is discharged into the drainage ditch 104 through the drain pipe 118. The remaining slurry forms a slurry cake, and the wastewater is collected through the drainage ditch 104 for secondary use, thus achieving the effect of saving water.

[0054] It should also be noted that any content not described in detail in this specification is prior art known to those skilled in the art.

[0055] Those skilled in the art should understand that the above embodiments are merely for illustrating the present disclosure and are not intended to limit the scope of the disclosure. Those skilled in the art can make other changes or modifications based on the above disclosure, and these changes or modifications still fall within the scope of the present disclosure.

Claims

1. A filter press for producing ceramic clay, characterized in that, include: Collection component (100), the collection component (100) includes a workbench (101); A filter press assembly (110), the filter press assembly (110) including a support plate (111), the filter press assembly (110) being used to compress and filter sludge; and Cleaning assembly (120) includes a gantry frame (121), with gantry slides (122) slidably connected to the bottom of both ends of the gantry frame (121). The gantry slides (122) are fixedly connected to the top of both sides of the support plate (111). A drive motor (123) is inserted and fixedly connected to one side of the gantry slides (122). A screw (124) is fixedly connected to the output end of the drive motor (123). The screw (124) is threadedly connected to the gantry frame (121). Electric push rods (125) are fixedly installed on both sides of the bottom of the gantry frame (121). A support shell (126) is fixedly connected to the output end of the electric push rods (125). Hangers (127) are fixedly connected to both sides of the support shell (126). A drive motor (128) is fixedly connected to one end of the hanger (127). The output end of the drive motor (128) is fixedly connected to... A drive wheel (129) is connected to a hanger (127) which is rotatably connected to a roller brush (131). The roller brush (131) is provided in two sets, and the two sets of roller brushes (131) are symmetrically arranged at the center position of the hanger (127). The drive wheel (129) is fixedly connected to one set of roller brushes (131). A belt (130) is sleeved on the outer wall of the drive wheel (129). The two sets of roller brushes (131) are connected by transmission through the belt (130). A water pipe (132) is fixedly installed at the end of the hanger (127) away from the drive motor (128). A nozzle (133) is fixedly installed on the outer wall of the water pipe (132). An air duct (134) is fixedly installed at the end of the support shell (126) near the drive motor (128). An arc-shaped cover (135) is fixedly installed on both sides of the bottom of the support shell (126). An air outlet (136) is opened at the center position of the bottom of the support shell (126).

2. The filter press for ceramic clay production according to claim 1, characterized in that: The workbench (101) has a feeding trough (102) on top, and rotating rod grooves (103) are provided at both ends of the feeding trough (102). Drainage channels (104) are provided at both ends of the rotating rod grooves (103) away from the feeding trough (102).

3. The filter press for ceramic clay production according to claim 2, characterized in that: A rotating rod (105) is rotatably connected inside the rotating rod groove (103), and a slanted cover (106) is fixedly connected to the outer wall of the rotating rod (105). The slanted cover (106) is located above the feeding groove (102).

4. The filter press for ceramic clay production according to claim 3, characterized in that... The top of the inclined cover (106) is provided with an electric push rod (107), and the two ends of the electric push rod (107) are rotatably connected to fixed seats (108). There are two sets of fixed seats (108), and the two sets of fixed seats (108) are symmetrically arranged with the electric push rod (107) as the center. The two sets of fixed seats (108) are fixedly connected to the inclined cover (106) and the support plate (111) respectively. The bottom of the feeding trough (102) is provided with a receiving cart (109).

5. The filter press for ceramic clay production according to claim 4, characterized in that: The feeding trough (102) is provided with support plates (111) on both sides. The bottom of the support plate (111) is fixedly connected to the top of the workbench (101). A hydraulic press (112) is inserted and fixed on the support plate (111) on the left side. A pressure plate (113) is fixedly connected to the output end of the hydraulic press (112). A filter plate (114) is provided on the side of the pressure plate (113) away from the hydraulic press (112). A slider (115) is fixedly installed at both ends of the filter plate (114). A filter plate slide (116) is slidably connected to the slider (115). The filter plate slide (116) is fixedly connected to the support plate (111) on both sides.

6. The filter press for ceramic clay production according to claim 5, characterized in that: The bottom of the slider (115) is provided with a chain (117), one end of the chain (117) is fixedly connected to the filter plate (114), and the other end of the chain (117) is fixedly connected to the pressure plate (113). The bottom of the chain (117) is provided with a drain pipe (118), one end of the drain pipe (118) is inserted and fixed to the filter plate (114), and the other end of the drain pipe (118) is in contact with the inner surface of the drainage channel (104). A fixing plate (119) is fixedly installed on the right side of the support plate (111) near the filter plate (114). The fixing plate (119) is fixedly connected to the filter plate (114) through the chain (117).

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