A filter plate cleaning device and a sludge plate and frame filter press including the same.

Abstract

This utility model relates to a filter plate cleaning device and a sludge plate and frame filter press including the same. The filter plate cleaning device includes a support frame, a lifting assembly, a cleaning assembly, and a moving assembly. The lifting assembly drives the lifting frame to slide up and down via a transmission unit. The driving and driven parts of the moving assembly cooperate to drive the cleaning assembly to move horizontally along the lifting frame, causing the spraying part to reciprocate in the height and width directions of the filter plates to clean them. The moving assembly can be either cylinder-driven or motor-gear-driven. The spraying part is equipped with high-pressure nozzles and rolling brushes to enhance the cleaning effect. The sludge plate and frame filter press includes the aforementioned filter plate cleaning device, frame, filter plate assembly, and pressing assembly. When the pressing assembly releases the filter plates, the spraying part of the cleaning device cleans the filter cloth and filter plates corresponding to the side of the filter plates, and can move along the frame guide rail to accommodate multiple filter plates. This device can thoroughly clean the filter plates and filter cloth, improving the working efficiency of the filter press.

Description

Technical Field

[0001] This utility model relates to the field of filter plate cleaning technology, specifically to a filter plate cleaning device and a sludge plate and frame filter press including the device. Background Technology

[0002] In the field of sludge treatment, sludge plate and frame filter presses, as a highly efficient solid-liquid separation device, are widely used in municipal sewage treatment, industrial wastewater treatment, and sludge dewatering. One of its core working components is the filter plate, which is usually made of polymer materials or cast iron. The surface has filter cloth mounting grooves and filtrate flow channels. Multiple filter plates are arranged alternately and pressed together by a hydraulic device to form a sealed filter chamber. When the sludge pump delivers the sludge to be treated to the filter chamber, under the action of pressure difference, the water in the sludge is discharged through the filter cloth and filter plate pores, while solid particles are trapped to form a filter cake, thereby achieving sludge dewatering.

[0003] However, during long-term use, sludge, fine particles, and colloidal substances easily accumulate on the surface of the filter cloth and in the filter pores and corners of the filter plates. If not cleaned in time, these deposits will gradually clog the filter pores, leading to a decrease in the filtration efficiency of the filter plates. This not only prolongs the filtration cycle but also increases equipment energy consumption. Simultaneously, residual corrosive sludge may erode the surface of the filter plates, shortening their lifespan and increasing equipment maintenance costs. Currently, most existing filter plate cleaning devices on the market use a fixed spray structure, which involves spraying high-pressure water onto the filter plate surface using a spray assembly positioned above the filter plate and capable of vertical movement. However, such devices have some problems: because the nozzle position is fixed, only a localized area of ​​the filter plate can be sprayed for cleaning, and horizontal adjustment based on the size of the filter plate and the distribution of dirt is not possible. For larger filter plates, their edges and corners are often difficult to fully cover with water, resulting in incomplete cleaning, and residual dirt will still affect subsequent filtration effects.

[0004] Therefore, how to develop a filter plate cleaning device that can achieve horizontal movement adjustment and all-round cleaning of the filter plates, as well as a sludge plate and frame filter press including the device, is an urgent problem that needs to be solved. Utility Model Content

[0005] To address the problems existing in the prior art, the first objective of this utility model is to provide a filter plate cleaning device that, through the coordinated action of the lifting component and the moving component, enables the spraying section to reciprocate in the height and width directions of the filter plate. Combined with the cooperation of high-pressure nozzles and rolling brushes, it improves cleaning efficiency and cleanliness. At the same time, it adopts multiple driving methods to adapt to different working conditions, enhancing the versatility of the equipment.

[0006] The second objective of this invention is to provide a sludge plate and frame filter press with a filter plate cleaning device. The filter plate cleaning device is integrated into the filter press frame. By using the clamping components to loosen the gaps formed by the filter plates, the cleaning device can accurately clean the sides of the filter plates. Multiple filter plates can be adapted to each other by sliding along the guide rails, thereby integrating the filter press and cleaning functions, reducing manual intervention, and improving overall work efficiency.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A filter plate cleaning device, comprising:

[0009] Support frame;

[0010] A lifting assembly includes a pair of fixed seats arranged vertically on the upper part of the support frame, a transmission part is provided in the fixed seats, and a lifting frame is provided between the pair of fixed seats. The lifting frame is driven to slide up and down along the height direction of the fixed seats by the transmission part.

[0011] A cleaning assembly includes a vertically arranged spray support, the lower end of which is provided with a spray section facing the side of the filter plate.

[0012] The moving assembly includes a drive unit for providing horizontal driving force and a driven unit connected to the upper end of the spray bracket. The drive unit and the driven unit are in a transmission engagement. The driven unit is connected to the lifting frame in a manner that allows for relative movement or relative fixation, so as to drive the cleaning assembly to move back and forth along the horizontal direction of the lifting frame under the action of the drive unit.

[0013] The transmission unit drives the lifting frame to move the spray unit along the height direction of the filter plate, and the driving unit drives the driven unit to move the spray unit along the width direction of the filter plate, so as to form a full-coverage cleaning of the side of the filter plate.

[0014] According to one example, the transmission unit includes a rotating shaft rotatably disposed on the upper part of the fixed base, a drive motor for driving the rotating shaft to rotate, and a transmission chain disposed within the fixed base, the upper end of the transmission chain being wound around one end of the rotating shaft, and the lower end of the transmission chain being wound around a tension wheel disposed on the lower part of the fixed base.

[0015] The lifting frame includes a pair of sliding plates symmetrically arranged inside the fixed base. One side of each sliding plate is fixedly connected to the transmission chain so that the sliding plate slides up and down along the height direction of the fixed base. A support rod is provided between the two sliding plates.

[0016] According to one example, the drive unit includes a cylinder disposed on the upper part of the support rod;

[0017] The driven part includes a first bridge-shaped plate slidably disposed on the support rod. A first rotating wheel and a second rotating wheel are arranged vertically inside the first bridge-shaped plate. The support rod is located between the first rotating wheel and the second rotating wheel and is in rolling contact with them. The output end of the cylinder is connected to one side of the first bridge-shaped plate.

[0018] The upper end of the spray bracket is fixedly connected to the first bridge plate. The extension and retraction of the cylinder sequentially drives the first bridge plate and the spray bracket to move synchronously along the length of the support rod.

[0019] According to one example, the drive unit includes a motor, which is fixed to the upper end of the spray bracket;

[0020] The driven part includes a rack fixed to the upper part of the support rod, and the output end of the motor is provided with a first gear that meshes with the rack.

[0021] According to one example, a second bridge-shaped plate is slidably disposed on the support rod, and a second gear is rotatably disposed inside the second bridge-shaped plate. The second gear meshes with the rack, and the upper end of the spray bracket is fixedly connected to the upper part of the second bridge-shaped plate.

[0022] According to one example, the lifting frame is also provided with limiting devices located on both sides of the driven part. The limiting devices are electrically connected to the driving part and are used to limit the movement path of the spray bracket on the lifting frame.

[0023] According to one example, the spray unit includes two spray assemblies arranged opposite each other. Each spray assembly includes a housing with one side open, the open side of which is arranged opposite to the side of the filter plate. The upper part of the housing is connected to the lower end of the spray support. A plurality of high-pressure nozzles are arranged inside the housing along its length, and the high-pressure nozzles face one side of the filter plate.

[0024] According to one example, a rolling brush is also arranged parallel to the lower part of the housing, the bristles of the rolling brush contacting the surface of the filter plate for scraping off impurities from the surface of the filter plate.

[0025] A sludge plate and frame filter press, comprising:

[0026] The filter plate cleaning device described above;

[0027] frame;

[0028] A filter plate assembly includes multiple filter plates and filter cloth disposed on both sides of the filter plates. The multiple filter plates are arranged sequentially along the length of the frame, and a filtration chamber is formed between two adjacent filter plates.

[0029] A clamping assembly, disposed at one end of the frame, is used to drive the plurality of filter plates to be clamped or released along the length of the frame;

[0030] The filter plate cleaning device is slidably disposed on the upper part of the frame. When the clamping assembly drives the filter plate to loosen, the spray section of the filter plate cleaning device corresponds to the side of the filter plate to clean the filter cloth.

[0031] According to one example, the upper part of the frame is provided with a guide rail, and the bottom of the support frame of the filter plate cleaning device is provided with a slider that cooperates with the guide rail. The slider slides along the guide rail to drive the filter plate cleaning device to move along the arrangement direction of the plurality of filter plates.

[0032] This utility model has the following advantages:

[0033] This utility model's filter plate cleaning device achieves full-coverage cleaning of filter plates and filter cloths through a two-dimensional drive structure of lifting and moving components, solving the problems of numerous blind spots and incomplete cleaning in existing cleaning equipment. Specifically, the transmission part of the lifting component, through the cooperation of a drive motor, rotating shaft, and transmission chain, drives the lifting frame to slide along the height direction of the fixed base, thereby allowing the spray section of the cleaning component to cover the height range of the filter plate. The moving component, through the transmission cooperation of the driving and driven parts, drives the spray section to move horizontally along the lifting frame, covering the width range of the filter plate. The spray section forms a complete cleaning path in both the height and width directions of the filter plate, avoiding the retention of impurities in areas such as the edges and corners of the filter plate. Simultaneously, the spray section employs two opposing spray components, with multiple high-pressure nozzles arranged along the length direction within the housing, creating a uniform and high-pressure spray wash on both sides of the filter plate, improving the cleanliness of the filter plate and filter cloth. Attached Figure Description

[0034] Figure 1 This is a three-dimensional structural diagram of the filter plate cleaning device of this utility model.

[0035] Figure 2 This is a three-dimensional structural diagram of the filter plate cleaning device of this utility model.

[0036] Figure 3 This is a three-dimensional structural diagram of the lifting component of this utility model.

[0037] Figure 4 This is a three-dimensional structural diagram of the moving component and the cleaning component of this utility model.

[0038] Figure 5 This is a front view of the moving component and the cleaning component of this utility model.

[0039] Figure 6 This is a three-dimensional structural diagram of the mobile component of this utility model.

[0040] Figure 7 This is a three-dimensional structural diagram of another embodiment of the mobile component of this utility model.

[0041] Figure 8 This is a three-dimensional structural diagram of another embodiment of the mobile component of this utility model.

[0042] Figure 9 This is a three-dimensional structural diagram of the spray section of the cleaning component of this utility model.

[0043] Wherein, 1 is the support frame, 2 is the lifting assembly, 201 is the fixed base, 202 is the transmission unit, 202a is the rotating shaft, 202b is the drive motor, 202c is the transmission chain, 203 is the lifting frame, 203a is the sliding plate, 203b is the support rod, 203b1 is the slide, 3 is the cleaning assembly, 301 is the spray bracket, 301a is the first support rod, 301a1 is the slider, 301b is the second support rod, 301c is the fixed frame, 302 is the spray unit, 30 2a is a spray assembly, 302a1 is a housing, 302a2 is a liquid inlet, 302a3 is a high-pressure nozzle, 4 is a moving assembly, 401 is a drive unit, 401a is a cylinder, 401b is a motor, 401b1 is a first gear, 402 is a driven unit, 402a is a first bridge plate, 402b is a first rotating wheel, 402c is a second rotating wheel, 402d is a second bridge plate, 402e is a second gear, 402f is a rack, and 403 is a limit switch. Detailed Implementation

[0044] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0045] Reference Figure 1 This document illustrates a specific embodiment of a filter plate cleaning device. The device mainly includes a support frame 1, a lifting assembly 2, a cleaning assembly 3, and a moving assembly 4. The support frame 1 serves as the supporting foundation for the entire device. The lifting assembly 2 is located on the upper part of the support frame 1 and is used to drive the cleaning assembly 3 and the moving assembly 4 to move along the height direction of the filter plate to be cleaned. The moving assembly 4 is located between the lifting assembly 2 and the cleaning assembly 3 and is used to drive the cleaning assembly 3 to move along the width direction of the filter plate. The cleaning assembly 3 corresponds to one or both sides of the filter plate to perform the cleaning operation, thereby constructing a two-dimensional cleaning system covering the height and width directions of the filter plate, achieving comprehensive and efficient cleaning of the filter plate and filter cloth.

[0046] Continue to refer to Figure 1The support frame 1 is a symmetrical frame structure, comprising four vertically arranged support legs. These four support legs are rectangularly distributed along the width of the filter plate to be cleaned. Two support legs positioned opposite each other along the thickness of the filter plate are fixedly connected by reinforcing ribs, forming a set of supports. These two sets of supports correspond to the two side edges of the filter plate. Two horizontal braces are arranged parallel to each other between the two sets of supports, and the spacing between the two horizontal braces is adapted to the dimensions of the cleaning assembly 3. Simultaneously, the lifting assembly 2 is fixed to the upper part of the two horizontal braces.

[0047] Reference Figure 2 and Figure 3 The lifting assembly 2 includes a pair of fixed seats 201 arranged vertically on the upper part of the support frame 1. A transmission part 202 is provided in the fixed seat 201. A lifting frame 203 is provided between the pair of fixed seats 201. The transmission part 202 provides the power for the lifting frame 203 to move up and down. The fixed seats 201 provide the transmission part 202 with installation space and guide path to realize the sliding of the lifting frame 203 along the height direction of the fixed seats 201.

[0048] The fixed base 201 includes two vertically and symmetrically arranged flat plates. The lower part of each flat plate is fixed to the cross brace of the support frame 1 by means of bolts, welding, or keying. The inner side of the flat plate has a mounting groove along its height direction. The width and depth of the mounting groove are respectively adapted to the transmission chain 202c and tension wheel of the transmission unit 202. The upper parts of the two flat plates are fixedly connected by two parallel crossbars, and the two crossbars are arranged at intervals along the width direction of the flat plates.

[0049] The transmission unit 202 converts the power of the drive motor 202b into linear motion of the lifting frame 203. It includes a rotating shaft 202a, a drive motor 202b, a transmission chain 202c, and a tensioning wheel. Both ends of the rotating shaft 202a are rotatably connected to bearing seats on the upper part of two flat plates via bearings. The rotating shaft 202a is located between two crossbars and is arranged parallel to them. The drive motor 202b is installed on the upper outer side of one of the flat plates. One end of the rotating shaft 202a passes through the bearing seat of the flat plate and is connected to the output end of the drive motor 202b via a coupling. When the drive motor 202b rotates in both directions, it can drive the rotating shaft 202a to rotate synchronously. The transmission chain 202c is correspondingly installed in the mounting groove of the plate. The rotating shaft 202a is provided with a sprocket at the position corresponding to the transmission chain 202c. The upper end of the transmission chain 202c is hooked around and meshes with the sprocket, and the lower end of the transmission chain 202c is hooked around the tension wheel provided at the lower part of the fixed base 201. The tension wheel is installed in the mounting groove at the lower part of the plate so as to adjust the tension according to the slack of the transmission chain 202c. When the rotating shaft 202a drives the sprocket to rotate, the transmission chain 202c moves cyclically along the mounting groove, thereby providing the power for the lifting frame 203 to move up and down.

[0050] The lifting frame 203 includes a pair of symmetrically arranged sliding plates 203a inside the fixed base 201, and two vertically parallel support rods 203b. The outer side of the sliding plates 203a is fixedly connected to the transmission chain 202c inside the plate. The two support rods 203b are arranged horizontally and vertically, and their ends are fixedly connected to the inner side of the two sliding plates 203a by bolts, welding, or other means. The support rods 203b are used to assemble the moving assembly 4 and the cleaning assembly 3.

[0051] Reference Figure 4 and Figure 9 The cleaning component 3 includes a vertically arranged spray bracket 301 and a spray section 302 disposed at the lower end of the spray bracket 301. The spray section 302 is arranged on both sides of the filter plate to achieve cleaning of the filter cloth and filter plate. The upper end of the spray bracket 301 is connected to the moving component 4. Under the drive of the moving component 4, it slides horizontally along the support rod 203b of the lifting frame 203, thereby driving the spray section 302 to cover the cleaning area in the width direction of the filter plate and filter cloth, ensuring comprehensive cleaning of both sides of the filter plate and filter cloth.

[0052] The spray support 301 is a symmetrical frame structure, comprising four vertically arranged first support rods 301a. These four first support rods 301a are symmetrically distributed in two groups along the width of the filter plate. In one group, two first support rods 301a correspond to one side of the filter plate, and in the other group, two first support rods 301a correspond to the other side of the filter plate. The two first support rods 301a in each group are spaced apart along the length of the filter plate. The lower ends of the two first support rods 301a in each group are connected to the spray section 302, and a second support rod 301b is fixedly installed horizontally between the two first support rods 301a in each group. A fixing frame 301c is also provided between the two first support rods 301a in each group. Both ends of the fixing frame 301c are connected to the side walls of the first support rods 301a. The spray support 301 is connected to the moving component 4 through the fixing frame 301c, ensuring that the driving force of the moving component 4 can be transmitted to the spray support 301, causing the entire cleaning component 3 to slide synchronously.

[0053] In another embodiment, the upper end of the first support rod 301a is slidably connected to the support rod 203b of the lifting frame 203. Specifically, the upper end of the first support rod 301a is provided with a slider 301a1, and a groove 203b1 is formed on the outer side of the support rod 203b along the length direction. The slider 301a1 is embedded in the groove 203b1 and can slide along the length direction of the groove 203b1 to ensure that the spray bracket 301 moves along the width direction of the filter plate.

[0054] Reference Figure 9The spray section 302 includes two opposing spray assemblies 302a, which correspond to the two sides of the filter plate and maintain a certain distance. Each spray assembly 302a includes a housing 302a1 with one side open. The housing 302a1 has a cover-like structure, with the open side facing the side of the filter plate to prevent cleaning fluid from splashing onto surrounding equipment. The upper part of the housing 302a1 is fixedly connected to the lower end of the first support rod 301a of the spray bracket 301. Multiple high-pressure nozzles 302a3 are spaced along the length of the housing 302a1, with the spray direction of the high-pressure nozzles 302a3 facing the side of the filter plate.

[0055] The first support rod 301a is a hollow structure with a liquid inlet at its upper end, which is connected to a cleaning fluid pipeline. The lower end of the first support rod 301a is connected to a liquid inlet 302a2 on the upper part of the housing 302a1. The liquid inlet 302a2 is connected to multiple high-pressure nozzles 302a3 through a branch pipeline inside the housing 302a1, allowing the high-pressure nozzles 302a3 to simultaneously spray cleaning fluid onto the filter plates and filter cloth. In addition, a water-blocking brush is provided at the edge of the open side of the housing 302a1, which can constrain the spray area of ​​the high-pressure nozzles 302a3, prevent the cleaning fluid from splashing to the surrounding area, ensure that the spray is concentrated on the side of the filter plate, and also preliminarily scrape off the residue on the filter plate and filter cloth.

[0056] In an embodiment not shown, to enhance the cleaning effect on impurities on the filter plate surface, a rolling brush is also arranged parallel to the lower part of the housing 302a1 in the horizontal direction. The two ends of the rotating shaft of the rolling brush are rotatably connected to the side wall of the housing 302a1. The rolling brush contacts the filter plate and filter cloth. The rolling brush is automatically rotated by the lifting component 2 and the moving component 4, which can mechanically scrape the impurities on the filter plate surface. Combined with the spraying and rinsing of the high-pressure nozzle 302a3, the cleaning effect is further improved.

[0057] Reference Figure 4-6 The figure shows the first specific embodiment of the movable component of this utility model. The movable component 4 is used to ensure the smooth sliding of the cleaning component 3. It includes a drive part 401 for providing horizontal driving force and a driven part 402 connected to the upper end of the spray bracket 301. The drive part 401 and the driven part 402 form a transmission cooperation. The driven part 402 is connected to the lifting frame 203 in a way that allows it to move relatively or be relatively fixed. Under the action of the drive part 401, the cleaning component 3 is driven to move back and forth along the length direction of the support rod 203b. Combined with the lifting component 2 driving the cleaning component 3 to reciprocate along the height direction of the filter plate, the full coverage cleaning of the filter plate and filter cloth is achieved.

[0058] In this embodiment, the moving component 4 is driven by a cylinder. Specifically, the driving part 401 includes a cylinder 401a horizontally disposed on the upper part of the support rod 203b. The cylinder body of the cylinder 401a is fixed to the middle position of the support rod 203b, and the output end of the cylinder 401a can be arranged to the left or right according to actual needs. The driven part 402 includes two symmetrically slidably disposed first bridge plates 402a on the support rod 203b. The two first bridge plates 402a are respectively located on both sides of the cylinder 401a, so that the driving force output by the cylinder 401a is evenly transmitted to one side of the first bridge plate 402a. The fixing frame 301c at the upper end of the spray bracket 301 is fixedly connected to the top of the two first bridge plates 402a, so that the cleaning component 3 moves synchronously with the first bridge plates 402a.

[0059] To reduce the frictional resistance of the first bridge plate 402a moving along the support rod 203b, a first rotating wheel 402b and a second rotating wheel 402c are arranged inside the first bridge plate 402a, one above the other. The first rotating wheel 402b and the second rotating wheel 402c are rotatably mounted on the inner sidewall of the first bridge plate 402a through bearings, and the wheel surfaces of the first rotating wheel 402b and the second rotating wheel 402c are in contact with the outer wall of the support rod 203b, so that the support rod 203b is clamped between the first rotating wheel 402b and the second rotating wheel 402c to form a rolling contact. The output end of cylinder 401a is fixedly connected to one side of the left or right first bridge plate 402a via a rectangular plate. When the piston rod of cylinder 401a extends or retracts, it will directly push or pull the corresponding first bridge plate 402a. Then, through the connection between the first bridge plate 402a and the fixed frame 301c, it will sequentially drive the other side first bridge plate 402a and the spray bracket 301 to move synchronously along the length direction of the support rod 203b.

[0060] Reference Figure 7 and Figure 8The figure shows another specific embodiment of the moving component 4. The moving component 4 adopts a rack and pinion drive. Specifically, the drive unit 401 includes a motor 401b fixed to the upper end of the spray bracket 301. The motor 401b is a servo motor or a stepper motor to ensure controllable speed, and the axis of the output shaft of the motor 401b is perpendicular to the length direction of the support rod 203b. The driven unit 402 includes a rack 402f fixed to the upper part of the support rod 203b along its length direction. The teeth of the rack 402f are arranged upwards, and the length of the rack 402f covers the entire cleaning path in the width direction of the filter plate, ensuring that the cleaning component 3 can be moved to any width position of the filter plate. The output end of the motor 401b is fixed with a first gear 401b1, which meshes with the rack 402f. When the motor 401b rotates forward and backward, the first gear 401b1 rolls along the tooth surface of the rack 402f. Then, through the fixed relationship between the motor 401b and the fixed frame 301c, the spray bracket 301 is directly driven to move along the length direction of the support rod 203b.

[0061] A second bridge plate 402d is slidably mounted on the support rod 203b. A fixing frame 301c is fixed to the upper part of the second bridge plate 402d. The structure of the second bridge plate 402d is similar to that of the first bridge plate 402a, but it is not directly connected to the drive unit 401. It is slidably mounted on the support rod 203b and can move synchronously with the spray bracket 301. A second gear 402e is rotatably mounted on the inner wall of the second bridge plate 402d. The tooth surface of the second gear 402e meshes with the tooth surface of the rack 402f on the side away from the first gear 401b1 to balance the radial force generated when the first gear 401b1 meshes, preventing the spray bracket 301 from tilting due to unilateral force.

[0062] Reference Figure 8 The lifting frame 203 is also equipped with limit devices 403 located on both sides of the driven part 402. The limit devices 403 are electrically connected to the drive part 401 and are used to limit the movement path of the spray bracket 301 on the lifting frame 203. The limit devices 403 are fixed to the support rod 203b on the upper part of the lifting frame 203 and correspond to the first bridge plate 402a or the second bridge plate 402d of the moving assembly 4. The limit device 403 can be a limit switch, a stop plate combined with a limit switch, an infrared sensor, etc.

[0063] In embodiments not shown, the aforementioned filter plate cleaning device can be integrated into a sludge plate and frame filter press. The sludge plate and frame filter press mainly includes a frame, filter plate assemblies, and a pressing assembly. The frame is the basic load-bearing component of the filter press, and the filter plate assembly is a crucial component for sludge dewatering. It includes multiple filter plates and filter cloth covering both sides of each filter plate. The multiple filter plates are arranged sequentially along the length of the frame, and a filtration chamber for sludge is formed between adjacent filter plates. After the sludge is injected into the filtration chamber, solid-liquid separation is achieved through the filter cloth. The pressing assembly is located at one end of the frame and serves as the power source for pressing and releasing the filter plates. It drives the multiple filter plates to simultaneously press or release along the length of the frame. When pressed, it ensures the filtration chamber is sealed to prevent sludge leakage; when released, it facilitates unloading and subsequent cleaning operations.

[0064] The filter plate cleaning device is slidably mounted on the upper part of the frame, and its installation position is adapted to the arrangement direction of the filter plate assembly, ensuring that the spray section 302 of the cleaning device can correspond to the side of the filter plate. After the filter press completes the filtration operation, the pressing assembly drives multiple filter plates to loosen along the length of the frame, so that a preset gap is formed between adjacent filter plates. At this time, the filter plate cleaning device can be moved to the corresponding position, and its spray section 302 extends into the gap between the filter plates and corresponds to the side of the filter plate. The lifting assembly 2 and the moving assembly 4 drive the spray section 302 to move along the height and width directions of the filter plate, and then the high-pressure nozzles 302a3 of the spray section 302 spray cleaning liquid to clean the residual sludge on the surface of the filter cloth.

[0065] The upper part of the frame is fixedly equipped with a guide rail along the filter plate arrangement direction. The bottom of the support frame 1 of the filter plate cleaning device is fixedly equipped with a slider 301a1 adapted to the guide rail, which can slide along the length of the guide rail. When it is necessary to clean filter plates at different positions, by driving the slider 301a1 to move along the guide rail, the entire filter plate cleaning device can be driven to move synchronously along the arrangement direction of multiple filter plates, so that the spray unit 302 can sequentially carry out cleaning operations on the sides of different filter plates, achieving full coverage cleaning of all filter plates and further improving the overall operating efficiency of the filter press.

[0066] The above embodiments are preferred embodiments of the present invention, but the embodiments of the present invention are not limited to the above embodiments. Any changes, modifications, substitutions, combinations, or simplifications made without departing from the spirit and principle of the present invention should be considered equivalent substitutions and are included within the protection scope of the present invention. The embodiments described in this disclosure are intended as non-limiting examples, and other embodiments may take various and alternative forms. Furthermore, the drawings are not necessarily to scale and may present simplified expressions of various features of the present disclosure, including, for example, specific dimensions, orientations, positions, and shapes. Details associated with such features will be determined in part by the intended application and usage environment of the described embodiments.

[0067] The detailed description and accompanying drawings are supporting and descriptive of this teaching, but the scope of this teaching is defined only by the claims. While the best mode and some other embodiments for carrying out this teaching have been described in detail, various alternative designs and embodiments exist for practicing the teaching as defined in the appended claims. Furthermore, this disclosure expressly includes combinations and sub-combinations of the elements and features set forth above and below.

Claims

1. A filter plate cleaning device, characterized in that, include: Support frame; A lifting assembly includes a pair of fixed seats arranged vertically on the upper part of the support frame, a transmission part is provided in the fixed seats, and a lifting frame is provided between the pair of fixed seats. The lifting frame is driven to slide up and down along the height direction of the fixed seats by the transmission part. A cleaning assembly includes a vertically arranged spray support, the lower end of which is provided with a spray section facing the side of the filter plate. The moving assembly includes a drive unit for providing horizontal driving force and a driven unit connected to the upper end of the spray bracket. The drive unit and the driven unit are in a transmission engagement. The driven unit is connected to the lifting frame in a manner that allows for relative movement or relative fixation, so as to drive the cleaning assembly to move back and forth along the horizontal direction of the lifting frame under the action of the drive unit. The transmission unit drives the lifting frame to move the spray unit along the height direction of the filter plate, and the driving unit drives the driven unit to move the spray unit along the width direction of the filter plate, so as to form a full-coverage cleaning of the side of the filter plate.

2. The filter plate cleaning device according to claim 1, characterized in that, The transmission unit includes a rotating shaft rotatably disposed on the upper part of the fixed base, a drive motor for driving the rotating shaft to rotate, and a transmission chain disposed in the fixed base. The upper end of the transmission chain is wrapped around one end of the rotating shaft, and the lower end of the transmission chain is wrapped around a tension wheel disposed on the lower part of the fixed base. The lifting frame includes a pair of sliding plates symmetrically arranged inside the fixed base. One side of each sliding plate is fixedly connected to the transmission chain so that the sliding plate slides up and down along the height direction of the fixed base. A support rod is provided between the two sliding plates.

3. The filter plate cleaning device according to claim 2, characterized in that, The drive unit includes a cylinder disposed on the upper part of the support rod; The driven part includes a first bridge-shaped plate slidably disposed on the support rod. A first rotating wheel and a second rotating wheel are arranged vertically inside the first bridge-shaped plate. The support rod is located between the first rotating wheel and the second rotating wheel and is in rolling contact. The output end of the cylinder is connected to one side of the first bridge-shaped plate. The upper end of the spray bracket is fixedly connected to the first bridge-shaped plate. The extension and retraction of the cylinder sequentially drives the first bridge-shaped plate and the spray bracket to move synchronously along the length direction of the support rod.

4. The filter plate cleaning device according to claim 2, characterized in that, The drive unit includes a motor, which is fixed to the upper end of the spray bracket; The driven part includes a rack fixed to the upper part of the support rod, and the output end of the motor is provided with a first gear that meshes with the rack.

5. The filter plate cleaning device according to claim 4, characterized in that, A second bridge-shaped plate is slidably mounted on the support rod, and a second gear is rotatably mounted inside the second bridge-shaped plate. The second gear meshes with the rack, and the upper end of the spray bracket is fixedly connected to the upper part of the second bridge-shaped plate.

6. The filter plate cleaning device according to claim 1, characterized in that, The lifting frame is also equipped with a limiting device located on both sides of the driven part. The limiting device is electrically connected to the driving part and is used to limit the movement path of the spray support on the lifting frame.

7. The filter plate cleaning device according to claim 1, characterized in that, The spray section includes two spray assemblies arranged opposite each other. Each spray assembly includes a housing with one side open. The open side of the housing is arranged opposite to the side of the filter plate. The upper part of the housing is connected to the lower end of the spray support. Multiple high-pressure nozzles are arranged inside the housing along its length direction. The high-pressure nozzles face one side of the filter plate.

8. The filter plate cleaning device according to claim 7, characterized in that, A rolling brush is also arranged parallel to the lower part of the housing. The bristles of the rolling brush are in contact with the surface of the filter plate and are used to scrape off impurities on the surface of the filter plate.

9. A sludge plate and frame filter press, characterized in that, include: The filter plate cleaning apparatus according to any one of claims 1 to 8; frame; A filter plate assembly includes multiple filter plates and filter cloth disposed on both sides of the filter plates. The multiple filter plates are arranged sequentially along the length direction of the frame, and a filtration chamber is formed between two adjacent filter plates. A pressing assembly is disposed at one end of the frame and is used to drive the multiple filter plates to press or release along the length direction of the frame. The filter plate cleaning device is slidably disposed on the upper part of the frame. When the clamping assembly drives the filter plate to loosen, the spray section of the filter plate cleaning device corresponds to the side of the filter plate to clean the filter cloth.

10. The sludge plate and frame filter press according to claim 9, characterized in that, The upper part of the frame is provided with a guide rail, and the bottom of the support frame of the filter plate cleaning device is provided with a slider that cooperates with the guide rail. The slider slides along the guide rail to drive the filter plate cleaning device to move along the arrangement direction of the multiple filter plates.

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