Automatically controlled plate-and-frame filter press

Abstract

The utility model discloses an automatic control plate-and-frame filter press which comprises a rack for filtering and supporting, a left side pressing plate is fixedly arranged on the left side of the top of the rack, water pipes which are communicated with an external water path and used for conveying filtered water are arranged at four corners of the left side pressing plate, and the left side pressing plate is welded and fixed with a right side U-shaped rack body. A hopper is welded to the lower portion of a right U-shaped frame body of the rack, a mounting plate is welded to the left side of the hopper, a hydraulic cylinder is fixed to the mounting plate, an output shaft of the hydraulic cylinder is fixedly connected with a guide frame, rectangular sliding grooves are formed in the centers of the front side face and the rear side face of the right U-shaped frame body of the rack, and a filter plate and a right pressing plate are clamped and embedded in the sliding grooves in a left-right sliding mode. The guide frame is arranged on the periphery of the rack in a sleeving mode, meanwhile, the left side pressing plate, the filter plate and the right side pressing plate are all clamped and embedded in guide grooves of the guide frame in a sliding mode, and the plate-and-frame filter press is switched between the pressing state and the unfolding state by controlling lifting of the guide frame.

Description

Technical Field

[0001] The utility model relates to the field of water filtration, in particular to an automatically controlled plate and frame filter press. Background Art

[0002] The plate and frame filter press was the first mechanical equipment applied to chemical dehydration. It is an intermittent solid-liquid separation device. Under the pressure of a feed pump, the feed liquid is sent into each filter chamber. Through the filter medium, solids and liquids are separated. The plate and frame filter press has the advantages of large filtration driving force, high solid content in the filter cake, clear filtrate, high solid recovery rate, and less consumption of conditioning drugs. It is still widely used in some small sewage treatment plants.

[0003] In the current technology, to ensure the high efficiency of filtration after each single filtration of the plate and frame filter press, it is necessary to manually remove the filter plates in sequence. After cleaning the filter cake and filter residue in the precipitation tanks on both sides of the filter plates, the filter plates are reinstalled into the equipment for the next filtration. The overall process is cumbersome, and it is impossible to automatically unfold multiple filter plates after filtration stops and directly clean the filter plates on the equipment. Summary of the Utility Model

[0004] The purpose of the utility model is to solve any of the above technical problems, and thus propose an automatically controlled plate and frame filter press.

[0005] To achieve the above purpose, the utility model adopts the following technical scheme: An automatically controlled plate and frame filter press includes a frame for filtration support. On the left side of the top of the frame, a left pressing plate is fixedly arranged. At the four corners of the left pressing plate, water pipes connected to the external water circuit for conveying filtered water are arranged. The left pressing plate is welded and fixed to a right U-shaped frame body. Below the right U-shaped frame body of the frame, a hopper is welded. On the left side of the hopper, a mounting plate is welded. A hydraulic cylinder is fixed on the mounting plate, and the output shaft of the hydraulic cylinder is fixedly connected to a guiding frame. On the center of the front and rear sides of the right U-shaped frame body of the frame, rectangular sliding grooves are arranged. The filter plates and the right pressing plate are slidably clamped in the sliding grooves. The guiding frame is sleeved outside the frame. At the same time, the left pressing plate, the filter plates, and the right pressing plate are all slidably clamped in the guiding grooves of the guiding frame. By controlling the lifting of the guiding frame, the plate and frame filter press can be switched between the pressing and unfolding states.

[0006] Further, the front and rear sides of the guiding frame are right trapezoids. On the front and rear sides of the guiding frame, multiple through guiding grooves are arranged. The distance between two adjacent guiding grooves increases in equal proportion from bottom to top. The front and rear sides of the guiding frame are connected into one body by a rib on the left side with an avoidance opening. On the left side of the center of the rib, a connecting platform is arranged. The connecting platform is fixedly connected to the top end of the output shaft of the hydraulic cylinder.

[0007] Further, at the centers of the front and rear sides of the left pressing plate of the frame, there are double-layer clamping platforms with a square bottom and a cylindrical top. The square bottom area of the double-layer clamping platform of the left pressing plate is clamped and fixed in the sliding groove, and the cylindrical top area of the double-layer clamping platform of the left pressing plate slides through the guiding groove on the leftmost side of the guiding frame. Multiple filter plates are arrayed on the right side of the left pressing plate.

[0008] Further, water passing holes are provided at the four corners of the filter plate, impurity precipitation grooves are provided at the centers of the left and right sides of the filter plate, and double-layer clamping platforms with a square bottom and a cylindrical top are provided at the centers of the front and rear sides of the filter plate. The square bottom areas of the double-layer clamping platforms of the filter plate slide and are clamped in the sliding groove left and right, and the cylindrical top areas of the double-layer clamping platforms of the filter plate slide through the guiding grooves in the middle section area of the guiding frame. A right pressing plate is provided on the right side of the rightmost filter plate.

[0009] Further, the right pressing plate is a hollow square plate with multiple reinforcing ribs on the back. At the centers of the front and rear sides of the right pressing plate, there are double-layer clamping platforms with a square bottom and a cylindrical top. The square bottom areas of the double-layer clamping platforms of the right pressing plate slide and are clamped in the sliding groove left and right, and the cylindrical top areas of the double-layer clamping platforms of the right pressing plate slide through the guiding grooves on the rightmost side of the guiding frame.

[0010] The beneficial effects of the present utility model are as follows: Multiple through guiding grooves are provided on the front and rear sides of the guiding frame, and the distance between two adjacent guiding grooves increases in equal proportion from bottom to top. The left pressing plate, the filter plate, and the right pressing plate are all slidably clamped in the guiding grooves of the guiding frame, and the filter plate and the right pressing plate are slidably clamped in the sliding groove left and right. When the hydraulic cylinder drives the guiding frame to slide downward, multiple arrayed filter plates and the right pressing plate on their right will expand equidistantly to the right with the left pressing plate as the reference, so that the precipitation grooves on the left and right sides of the filter plate are exposed. Workers can directly rinse and clean the precipitation grooves on the left and right sides of the filter plate from above, without manually disassembling and cleaning the filter plates one by one. The maintenance and cleaning efficiency of the filter press is greatly improved, the labor cost is reduced, and it has better convenience and practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 is a schematic diagram of the overall pressing structure of the present utility model;

[0012] Figure 2 is a schematic diagram of the overall unfolded structure of the present utility model;

[0013] Figure 3 is a schematic diagram of the installation of the filter plate of the present utility model;

[0014] Figure 4 is a schematic diagram of the structure of the frame of the present utility model;

[0015] Figure 5 is a schematic diagram of the structure of the filter plate of the present utility model;

[0016] Figure 6 It is a schematic structural diagram of the right pressing plate of the utility model;

[0017] Figure 7 It is a schematic structural diagram of the guide frame of the utility model.

[0018] In Figures 1 to 7 ,the corresponding relationship between the component names or lines and the drawing numbers is: frame 1, left pressing plate 11, water pipe 12, sliding groove 13, hopper 14, mounting plate 15, filter plate 2, right pressing plate 3, guide frame 4, guide groove 41, connecting platform 42, hydraulic cylinder 5. Specific implementation mode

[0019] Please refer to Figures 1 to 7 ;

[0020] This embodiment provides an automatically controlled plate and frame filter press, including a frame 1 for filtering support. A left pressing plate 11 is fixedly arranged on the left side of the top of the frame 1. Water pipes 12 for conveying filtered water bodies are arranged at the four corners of the left pressing plate 11 and are connected to the external water circuit. The left pressing plate 11 is welded and fixed to the right U-shaped frame body. A hopper 14 is welded and arranged below the right U-shaped frame body of the frame 1. An installation plate 15 is welded to the left side of the hopper 14. The hydraulic cylinder 5 is fixed on the installation plate, and the output shaft of the hydraulic cylinder 5 is fixedly connected to the guide frame 4. Rectangular sliding grooves 13 are arranged at the centers of the front and rear sides of the right U-shaped frame body of the frame 1. The filter plate 2 and the right pressing plate 3 are slidably clamped in the sliding grooves 13. The guide frame 4 is sleeved outside the frame 1. At the same time, the left pressing plate 11, the filter plate 2 and the right pressing plate 3 are all slidably clamped in the guide groove 41 of the guide frame 4. By controlling the lifting of the guide frame 4, the plate and frame filter press can be switched between the pressing and unfolding states.

[0021] Preferably, the front and rear sides of the guide frame 4 are right trapezoids. A plurality of through guide grooves 41 are arranged on the front and rear sides of the guide frame 4. The distance between two adjacent guide grooves 41 increases in equal proportion from bottom to top. The front and rear sides of the guide frame 4 are connected into one body by a rib on the left side with an avoidance opening. A connecting platform 42 is arranged on the left side of the center of the rib. The connecting platform 42 is fixedly connected to the top end of the output shaft of the hydraulic cylinder 5.

[0022] In a specific embodiment, the guide frame 4 is integrally treated by quenching of alloy steel, and at the same time, a Teflon coating is sprayed on the surface of the guide frame 4 to prevent corrosion and rust while ensuring the smoothness inside the guide groove 41 and preventing it from getting stuck during sliding.

[0023] Preferably, double-layer clamping platforms with a square bottom and a cylindrical top are provided at the centers of the front and rear sides of the left pressing plate 11 of the frame 1. The square bottom area of the double-layer clamping platform of the left pressing plate 11 is clamped and fixed in the sliding groove 13, and the cylindrical top area of the double-layer clamping platform of the left pressing plate 11 slides through the leftmost guiding groove 41 of the guiding frame 4. Multiple filter plates 2 are arranged in an array on the right side of the left pressing plate 11.

[0024] Preferably, water passing holes are provided at the four corners of the filter plate 2, impurity precipitation grooves are provided at the centers of the left and right sides of the filter plate 2, and double-layer clamping platforms with a square bottom and a cylindrical top are provided at the centers of the front and rear sides of the filter plate 2. The square bottom area of the double-layer clamping platform of the filter plate 2 slides left and right and is clamped in the sliding groove 13, and the cylindrical top area of the double-layer clamping platform of the filter plate 2 slides through the guiding groove 41 in the middle section area of the guiding frame 4. A right pressing plate 3 is provided on the right side of the rightmost filter plate 2.

[0025] Preferably, the right pressing plate 3 is a hollow square plate with multiple reinforcing ribs on the back. Double-layer clamping platforms with a square bottom and a cylindrical top are provided at the centers of the front and rear sides of the right pressing plate 3. The square bottom area of the double-layer clamping platform of the right pressing plate 3 slides left and right and is clamped in the sliding groove 13, and the cylindrical top area of the double-layer clamping platform of the right pressing plate 3 slides through the rightmost guiding groove 41 of the guiding frame 4.

[0026] In a specific embodiment, the double-layer clamping platforms of the right pressing plate 3, the filter plate 2, and the left pressing plate 11 are all subjected to alloy steel quenching treatment, and a Teflon coating is sprayed on the surface of the layer clamping platform. While preventing corrosion and rust, it ensures the smoothness of the outer surface of the layer clamping platform and prevents it from getting stuck during sliding.

[0027] In a specific embodiment, multiple through guiding grooves 41 are provided on the front and rear sides of the guiding frame 4. The distance between two adjacent guiding grooves 41 increases in equal proportion from bottom to top. The left pressing plate 11, the filter plate 2, and the right pressing plate 3 are all slidably clamped in the guiding grooves 41 of the guiding frame 4. The filter plate 2 and the right pressing plate 3 slide left and right and are clamped in the sliding groove 13. When the guiding frame 4 slides up and down, multiple arrayed filter plates 2 and the right pressing plate 3 are driven to slide left and right on the sliding rod in the sliding groove 13 through the guiding grooves 41.

[0028] When the utility model is in use and pressure filtration is required, an external electric control device controls the hydraulic cylinder 5 to start. The output shaft of the hydraulic cylinder 5 pushes upward to drive the guide frame 4 to rise to the top. The guide groove 41 of the guide frame 4 drives a plurality of filter plates 2 distributed in an array and the pressing plate 3 on their right sides to fit against each other to the left and press the left pressing plate 11 of the frame 1 tightly. At the same time, an external water circuit exchanges the filtered water body with the water pipe 12 until the pressure filtration is completed. After a single pressure filtration is completed, the external electric control device controls the output shaft of the hydraulic cylinder 5 to pull downward to drive the guide frame 4 to descend to the bottom. The guide groove 41 of the guide frame 4 drives a plurality of filter plates 2 distributed in an array and the pressing plate 3 on their right sides to expand equidistantly to the right with the left pressing plate 11 as the reference, so that the precipitation grooves on the left and right sides of the filter plate 2 are exposed. Workers can directly rinse and clean the precipitation grooves on the left and right sides of the filter plate 2 from above. After the cleaning is completed, the next pressure filtration work cycle can be carried out.

[0029] The above is only the preferred specific implementation manner of the utility model, but the protection scope of the utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the utility model, according to the technical solution of the utility model and its inventive concept, makes equivalent substitutions or changes, and all should be covered by the protection scope of the utility model.

Claims

1. An automatically controlled plate and frame filter press, comprising a frame (1) for filtering support, a left side pressure plate (11) is fixedly arranged on the left side of the top of the frame (1), water pipes (12) connected to an external waterway for conveying filtered water are arranged at four corners of the left side pressure plate (11), the left side pressure plate (11) is welded and fixed to a right side U-shaped frame, a hopper (14) is welded below the right side U-shaped frame of the frame (1), a mounting plate (15) is welded to the left side of the hopper (14), a hydraulic cylinder (5) is fixed on the mounting plate and an output shaft of the hydraulic cylinder (5) is fixedly connected to a guide frame (4), characterized in that: A rectangular slide groove (13) is provided at the center of both front and rear side surfaces of the U-shaped frame body on the right side of the frame (1); the filter plate (2) and the right side pressure plate (3) are slidably engaged in the slide groove (13) to the left and right; the guide frame (4) is sleeved on the periphery of the frame (1); and the left side pressure plate (11), the filter plate (2) and the right side pressure plate (3) are slidably engaged in the guide groove (41) of the guide frame (4); and the plate and frame filter press is switched between the pressed state and the unfolded state by controlling the lifting and lowering of the guide frame (4).

2. The automatically controlled plate and frame filter press according to claim 1, characterized in that: The front and rear side surfaces of the guide frame (4) are right-angled trapezoids. The front and rear side surfaces of the guide frame (4) are both provided with a plurality of penetrating guide grooves (41). The spacing between two adjacent guide grooves (41) increases in equal proportion from bottom to top. The front and rear surfaces of the guide frame (4) are connected as a whole via a rib with a relief opening on the left side. A connecting platform (42) is provided on the left side of the center of the rib. The connecting platform (42) is fixedly connected to the top end of the output shaft of the hydraulic cylinder (5).

3. The automatically controlled plate and frame filter press according to claim 1, characterized in that: A double-layer card platform with a square bottom and a cylindrical top is arranged at the center of both front and rear sides of the left side pressure plate (11) of the frame (1); the bottom square area of ​​the double-layer card platform of the left side pressure plate (11) is fixed in the slide groove (13); the top cylindrical area of ​​the double-layer card platform of the left side pressure plate (11) is slidably inserted into the leftmost guide groove (41) of the guide frame (4); and a plurality of filter plates (2) are arranged in an array on the right side of the left side pressure plate (11).

4. The automatically controlled plate and frame filter press according to claim 3, characterized in that: The filter plate (2) is provided with water holes at the four corners, and the center of the left and right sides of the filter plate (2) is provided with an impurity precipitation groove. The center of the front and rear sides of the filter plate (2) is provided with a double-layer clamping platform with a square bottom and a cylindrical top. The bottom square area of ​​the double-layer clamping platform of the filter plate (2) is slidably clamped in the slide groove (13) left and right, and the top cylindrical area of ​​the double-layer clamping platform of the filter plate (2) is slidably penetrated in the guide groove (41) of the middle area of ​​the guide frame (4). The right side of the rightmost filter plate (2) is provided with a right pressure plate (3).

5. The automatically controlled plate and frame filter press according to claim 4, characterized in that: The right side pressing plate (3) is a hollow square plate with a plurality of reinforcing ribs on the back side. A double-layer clamping platform with a square bottom and a cylindrical top is provided at the center of the front and rear sides of the right side pressing plate (3). The bottom square area of ​​the double-layer clamping platform of the right side pressing plate (3) is slidably clamped in the slide groove (13) to the left and right, and the top cylindrical area of ​​the double-layer clamping platform of the right side pressing plate (3) is slidably penetrated into the rightmost guide groove (41) of the guide frame (4).

Images