A high pressure filter press

Abstract

The utility model discloses a high pressure filter press belongs to filter press technical field, including frame, a plurality of filter plates are placed in the frame sliding, one end of frame is installed hydraulic cylinder, and the output fixed mounting of hydraulic cylinder has the filter plate in the frame in, the front and back both sides of frame all are fixedly connected with a group of crossbeam, and every group crossbeam all slidingly connected with sliding block, be provided with the plate assembly for replacing filter plate on the sliding block, the plate assembly includes two and symmetrical fixed connection in the support rod of two sliding blocks opposite side number, the utility model discloses, through the support frame cooperation connecting frame lower end's clamping block of cylinder lifting, can with the filter plate of lowering down connecting frame cooperation clamping block and lift, then cooperation electric push rod drive to the one side of frame, can lower down and loosen filter plate, and again to the filter plate of needing putting into and promote and put into the frame, to complete the automatic plate of filter plate, thereby improve the replacement efficiency.

Description

Technical Field

[0001] This utility model relates to the field of filter press technology, and in particular to a high-pressure filter press. Background Technology

[0002] A filter press is a mechanical device that uses a special filter medium to apply pressure to a substance, causing the liquid to seep out. Filter presses are used in industries such as chemical, pharmaceutical, metallurgical, dye, food, brewing, ceramics and environmental protection to separate solids and liquids.

[0003] Filter plates play a crucial role in the operation of a filter press. Therefore, after prolonged use, damaged filter plates require maintenance or replacement. For example, the utility model disclosed in CN222266246U discloses a filter press that facilitates filter plate replacement. It includes two support plates, with multiple filter plates movably connected to their adjacent outer surfaces. Push rods are fixedly mounted on the outer surfaces of the two support plates via fixing plates, and these push rods are movably connected to the multiple filter plates. The key feature is that a support frame is provided at the top of the two support plates. The support frame has a U-shaped structure. Through the cooperation of clamping and lifting components, the squeezing blocks contact the sides of the filter plates, clamping them tightly. A connecting plate connects to the top of the filter plates, and a drive motor lifts the connecting plate on the threaded rod, thereby pulling the filter plates out from the two support frames. This eliminates the need for manual lifting, reducing labor intensity and improving the efficiency of filter plate replacement.

[0004] However, the filter plate replacement structure in the above application requires manual assistance during the replacement process, which makes the replacement of the filter plates inconvenient and affects the replacement efficiency. Therefore, a high-pressure filter press is proposed to solve the above problems. Utility Model Content

[0005] (a) Purpose of the utility model

[0006] To address the technical problems existing in the background art, this utility model proposes a high-pressure filter press. The filter press plate can be lifted and limited by a lifting plate changing assembly, and after the filter press plate is moved out of the frame, it can be lowered and released, thereby automatically replacing the filter press plate without manual assistance and improving replacement efficiency.

[0007] (II) Technical Solution This utility model provides a high-pressure filter press, including a frame, in which a plurality of filter plates are slidably placed. A hydraulic cylinder is installed at one end of the frame, and a pressure plate located inside the frame is fixedly installed at the output end of the hydraulic cylinder. A set of crossbeams is fixedly connected to both the front and rear sides of the frame, and a sliding block is slidably connected to each set of crossbeams. The sliding block is equipped with a plate changing assembly for replacing the filter press plate. The plate-changing assembly includes two support rods symmetrically and fixedly connected to opposite sides of two sliding blocks. Mounting plates are slidably connected to the upper ends of the two support rods. Cylinders are fixedly mounted on the mounting plates. A support frame is fixedly connected to the output end of each cylinder. A connecting frame is slidably connected to the inner side of the support frame. A set of locking blocks is hinged to the lower end of the connecting frame. A set of telescopic rods is hinged to both the left and right sides of the connecting frame, with the end of each telescopic rod furthest from the connecting frame hinged to a locking block on the same side. Two symmetrically distributed mounting blocks are fixedly connected to the lower end of the support frame, and the lower ends of the mounting blocks are inclined. Magnets are embedded on the side of each mounting block near the connecting frame and on the side of each locking block near the mounting block. The magnets on the mounting blocks are electromagnets. An electric push rod is fixedly installed at the upper end of a set of support rods, and the output end of the electric push rod is fixed to the mounting plate; The support frame is U-shaped, and its inner top wall is provided with an elastic support member for elastically supporting the connecting frame; The sliding block is provided with a limiting component for limiting the movement of the filter press plate.

[0008] Preferably, the filter press plate consists of a frame and a panel, wherein the frame is a glass fiber reinforced PP frame and the panel is a mineral-filled PP board.

[0009] Preferably, the support rod is U-shaped and has a notch at its lower end, and the notch of the support rod is fixed to the sliding block. The lower end of the locking block is L-shaped and its L end is inclined.

[0010] Preferably, the telescopic rod consists of a sleeve rod, a sliding rod, and a return spring. The sleeve rod is hinged to the connecting frame, and the sliding rod is slidably connected inside the sleeve rod. The return spring is fixedly connected between the end of the sliding rod located inside the sleeve rod and the inner side of the sleeve rod. The end of the sliding rod located outside the sleeve rod is hinged to the locking block.

[0011] Preferably, the elastic support consists of a set of cylindrical vertical rods and a support spring. The set of vertical rods is symmetrically fixedly connected to the upper end of the connecting frame and passes through the support frame. The set of support springs is fixedly connected between the inner side of the support frame and the upper end of the connecting frame.

[0012] Preferably, the sliding block is I-shaped with its upper end being U-shaped. The limiting component includes two rotating shafts that are symmetrically rotatably mounted on the U-shaped end of the sliding block. Each set of rotating shafts is fixedly connected to a stop block and a stop block located inside the U-shaped end of the sliding block. A torsion spring is installed between the stop block, the stop block and the inner side of the U-shaped end of the sliding block. Each rotating shaft passes through the U-shaped end of the sliding block, and a protrusion is fixedly connected to one end of the shaft that passes through the sliding block. A rod is inserted into the end of each protrusion away from the rotating shaft.

[0013] Preferably, the limiting component further includes two servo motors, which are symmetrically fixed on the frame. The output shaft of the servo motor is fixedly connected to a threaded rod that passes through the sliding block. The sliding block has a threaded hole in the middle, and the threaded hole is adapted to the thread on the outside of the threaded rod.

[0014] Compared with the prior art, the above-mentioned technical solution of this utility model has the following beneficial technical effects: 1. This high-pressure filter press uses a cylinder-lifted support frame and a locking block at the lower end of the connecting frame to lift the filter plate. Then, with the help of an electric push rod, the filter plate is lowered and released after being driven to one side of the frame. The filter plate to be placed in the frame is then lifted and placed into the frame, thus completing the automatic filter plate replacement and improving the replacement efficiency.

[0015] 2. This high-pressure filter press has a glass fiber reinforced PP frame on the filter plate and a mineral-filled PP board on the panel, which can improve the overall strength of the filter plate when it is squeezed, thereby improving the overall high pressure resistance of the filter plate during the filtration process. Attached Figure Description

[0016] Figure 1 This is a perspective view of the overall structure of this utility model; Figure 2 This utility model Figure 1 Enlarged view of point A in the middle; Figure 3 This is a schematic diagram of the plate-changing assembly structure of this utility model; Figure 4 This utility model Figure 3 Enlarged view at point B in the middle; Figure 5 This is a schematic diagram of the filter plate structure of this utility model.

[0017] Reference numerals: 1. Frame; 2. Filter press plate; 21. Frame; 22. Panel; 3. Hydraulic cylinder; 4. Pressure plate; 5. Servo motor; 6. Threaded rod; 7. Crossbeam; 8. Plate changing assembly; 81. Support rod; 82. Support plate; 83. Cylinder; 84. Electric push rod; 85. Support frame; 86. Elastic support component; 87. Connecting frame; 88. Telescopic rod; 89. Locking block; 810. Mounting block; 811. Magnet block; 9. Sliding block; 10. Abutment block; 11. Rotating shaft; 12. Stop block; 13. Protrusion; 14. Insert rod. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this utility model. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of this utility model.

[0019] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used solely for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0020] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, such as welding, riveting, or bonding; it can also be a detachable connection, such as threaded connection, keyed connection, or pin connection; or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; or it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0021] like Figure 1-5 As shown, the present invention proposes a high-pressure filter press, including a frame 1, a plurality of filter plates 2 are slidably placed inside the frame 1, a hydraulic cylinder 3 is installed at one end of the frame 1, and a pressure plate 4 located inside the frame 1 is fixedly installed at the output end of the hydraulic cylinder 3. A set of crossbeams 7 are fixedly connected to both the front and rear sides of the frame 1, and a sliding block 9 is slidably connected to each set of crossbeams 7. A plate changing assembly 8 for changing the filter press plate 2 is provided on the sliding block 9. The sliding block 9 is provided with a limiting component for limiting the movement of the filter press plate 2.

[0022] In this invention, the filter press plate 2 can be lifted and limited by the lifting plate replacement assembly 8, and after the filter press plate 2 is moved out of the frame 1, it is lowered and released, thereby automatically replacing the filter press plate 2 without manual assistance.

[0023] It should be noted that the filter press plate 2 is composed of a frame 21 and a panel 22. The frame 21 is a glass fiber reinforced PP frame, and the panel 22 is a mineral-filled PP board. Since the frame 21 on the filter press plate 2 is a glass fiber reinforced PP frame and the panel 22 is a mineral-filled PP board, the overall strength of the filter press plate 2 when it is compressed can be improved, thereby improving the overall high pressure resistance of the filter press plate 2 during the filtration process.

[0024] In an optional embodiment, the plate changing assembly 8 includes two support rods 81 symmetrically and fixedly connected to opposite sides of two sliding blocks 9. The upper ends of the two support rods 81 are slidably connected to mounting plates 82. Cylinders 83 are fixedly mounted on the mounting plates 82. The output end of the cylinders 83 is fixedly connected to a support frame 85. A connecting frame 87 is slidably connected to the inner side of the support frame 85. A set of locking blocks 89 is hinged to the lower end of the connecting frame 87. A set of telescopic rods 88 are hinged to both the left and right sides of the connecting frame 87. The end of each telescopic rod 88 away from the connecting frame 87 is hinged to the locking block 89 on the same side. Two sets of symmetrically distributed mounting blocks 810 are fixedly connected to the lower end of the support frame 85. The lower end of the mounting blocks 810 is inclined. Magnet blocks 811 are embedded on the side of the mounting blocks 810 near the connecting frame 87 and the side of the locking blocks 89 near the mounting blocks 810. The magnet blocks 811 on the mounting blocks 810 are electromagnets.

[0025] In this embodiment, the support frame 85 raised and lowered by the cylinder 83, together with the locking block 89 at the lower end of the connecting frame 87, can lift the filter plate by lowering the connecting frame 87 and locking block 89. Then, with the help of the electric push rod 84, it can be driven to one side of the frame 1, and the filter plate 2 can be lowered and released. Then, the filter plate 2 to be placed can be lifted and placed into the frame 1 to complete the automatic plate replacement of the filter plate 2, thereby improving the replacement efficiency.

[0026] It should be noted that the support rod 81 is U-shaped and has a notch at its lower end. The notch of the support rod 81 is fixed to the sliding block 9. The lower end of the locking block 89 is L-shaped and its L end is inclined. The length of the support rod 81 connected to the rear sliding block 9 and the length of its connection to the front sliding block 9 allow the filter plate 2 to have space to move backward and be lowered after being lifted.

[0027] The telescopic rod 88 consists of a sleeve rod, a sliding rod, and a return spring. The sleeve rod is hinged to the connecting frame 87, and the sliding rod is slidably connected inside the sleeve rod. The return spring is fixedly connected between the end of the sliding rod located inside the sleeve rod and the inner side of the sleeve rod. The end of the sliding rod located outside the sleeve rod is hinged to the locking block 89, so that the telescopic rod 88 can elastically extend and retract, providing elastic support for the locking block 89.

[0028] In addition, the elastic support 86 consists of a set of cylindrical vertical rods and a support spring. The upper end of the cylindrical vertical rods is T-shaped. The set of vertical rods is symmetrically fixedly connected to the upper end of the connecting frame 87 and passes through the support frame 85. The set of support springs is fixedly connected between the inner side of the support frame 85 and the upper end of the connecting frame 87, so that the support frame 85 can provide elastic support for the connecting frame 87 through the vertical rods and the support springs.

[0029] In an optional embodiment, the sliding block 9 is I-shaped with a U-shaped upper end. The limiting component includes two rotating shafts 11 that are symmetrically rotatably mounted on the U-shaped end of the sliding block 9. Each rotating shaft 11 is fixedly connected to a stop block 10 and a stop block 12 located inside the U-shaped end of the sliding block 9. A torsion spring is installed between the stop block 10, the stop block 12 and the inside of the U-shaped end of the sliding block 9. Each rotating shaft 11 passes through the U-shaped end of the sliding block 9, and a protrusion 13 is fixedly connected to one end of the shaft 11. A rod 14 is inserted into the end of each protrusion 13 away from the rotating shaft 11. The upper ends of the stop block 10 and the stop block 12 are inclined.

[0030] In this embodiment, when the sliding block 9 is driven to move horizontally, it can drive the abutment block 10 through the ear of the filter press plate 2 that needs to be pulled. When the abutment block 10 and the stop block 12 are driven between the ears of a single filter press plate 2 along with the sliding block 9, since the insertion rod 14 can cooperate with the protrusion 13 to restrict the counterclockwise rotation of the abutment block 10 and the counterclockwise rotation of the stop block 12, the reciprocating sliding block 9 can pull the ear of a single filter press plate 2 to separate it from its adjacent filter press plate 2 through the abutment block 10, and push the ears of several filter press plates 2 to make several filter press plates 2 fit together through the stop block 12.

[0031] It should be noted that the limiting component also includes two servo motors 5, which are symmetrically fixed on the frame 1. The output shaft of the servo motor 5 is fixedly connected to a threaded rod 6 that passes through the sliding block 9. The sliding block 9 has a threaded hole in the middle, and the threaded hole is compatible with the thread on the outside of the threaded rod 6, so that the servo motor 5 can drive the two sliding blocks 9 to move horizontally along the direction parallel to the horizontal plane through the threaded rod 6.

[0032] The working principle in the above embodiments is as follows: When the servo motor 5, in conjunction with the threaded rod 6, drives the sliding block 9 to move horizontally towards the side closer to the filter plate 2, the abutment 10 is squeezed by the ear of the filter plate 2 and passes through the ear of the filter plate 2 that needs to be pulled. After the abutment 10 and the stop block 12 are driven to both sides of the ear of a single filter plate 2 along with the sliding block 9, the left insert rod 14 can cooperate with the protrusion 13 to restrict the clockwise rotation of the abutment 10. Therefore, after the sliding block 9 is reset by the servo motor 5 and the threaded rod 6, the abutment 10 can pull the single filter plate 2 to separate from its adjacent filter plate 2, so as to facilitate the separation of the two filter plates 2 and the falling of the filter residue. Since the right insert rod 14 can cooperate with the protrusion 13 and the stop block 12 to rotate counterclockwise, when the servo motor 5, in conjunction with the threaded rod 6, drives the sliding block 9 to move horizontally towards the side closer to the filter plate 2, the stop block 12 can push the ear of the foremost filter plate 2 to make several filter plates 2 stick together in sequence. After the two filter plates 2 are separated, when it is necessary to replace the filter plate 2, the cylinder 83 can be activated to lower the support frame 85, so that the L end of the lower end of the connecting frame 87 is tilted and squeezed by the filter plate 2. After the clamping blocks 89 on both sides of the lower end of the connecting frame 87 are squeezed, they rotate towards the opposite side until the L end of the clamping block 89 extends to the inside of the frame 21 of the filter plate 2, and can hook the frame 21 of the filter plate 2. Then, the reset cylinder 83 can raise the support frame 85 and pull up the filter plate 2 in the frame 1 through the clamping block 89 at the lower end of the connecting frame 87. Then, the electric push rod 84 drives the mounting plate 82 to move towards the rear of the frame 1. After the cylinder 83 lowers the support frame 85 again, the lifted filter plate 2 can be placed on the ground or on the rack where the filter plate 2 is placed. After the filter plate 2 is placed, the support frame 85 continues to move downward by the cylinder 83 until the support frame 85 is flush with the lower end of the connecting frame 87. Then, the magnet 811 on the mounting block 810 is energized, and the magnet 811 on the mounting block 810 attracts the magnet 811 on the locking block 89, thereby causing the locking block 89 to separate from the filter plate 2, thus completing the removal of one filter plate 2. Finally, repeat the above plate replacement steps to remove several filter plates 2 and hoist new filter plates 2 into the frame 1, thus completing the replacement of several filter plates 2.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-pressure filter press, comprising a frame (1), wherein a plurality of filter plates (2) are slidably placed inside the frame (1), and a hydraulic cylinder (3) is installed at one end of the frame (1), and a pressure plate (4) located inside the frame (1) is fixedly installed at the output end of the hydraulic cylinder (3). Its features are: A set of crossbeams (7) are fixedly connected to both the front and rear sides of the frame (1), and a sliding block (9) is slidably connected to each set of crossbeams (7). A plate changing assembly (8) for changing the filter plate (2) is provided on the sliding block (9). The plate-changing assembly (8) includes two support rods (81) symmetrically fixedly connected to opposite sides of two sliding blocks (9). Mounting plates (82) are slidably connected to the upper ends of the two support rods (81). Cylinders (83) are fixedly mounted on the mounting plates (82). A support frame (85) is fixedly connected to the output end of the cylinders (83). A connecting frame (87) is slidably connected to the inner side of the support frame (85). A set of locking blocks (89) is hinged to the lower end of the connecting frame (87). The left and right sides of the connecting frame (87)... Both sides are hinged with a set of telescopic rods (88), and the end of each set of telescopic rods (88) away from the connecting frame (87) is hinged to the same side of the locking block (89). The lower end of the support frame (85) is fixedly connected with two sets of symmetrically distributed mounting blocks (810), and the lower end of the mounting block (810) is inclined. The mounting block (810) near the connecting frame (87) and the locking block (89) near the mounting block (810) are both embedded with magnet blocks (811), and the magnet blocks (811) on the mounting block (810) are electromagnets. An electric push rod (84) is fixedly installed at the upper end of a set of support rods (81), and the output end of the electric push rod (84) is fixed to the mounting plate (82); The support frame (85) is U-shaped, and its inner top wall is provided with an elastic support member (86) for elastically supporting the connecting frame (87). The sliding block (9) is provided with a limiting component for limiting the movement of the filter press plate (2).

2. The high-pressure filter press according to claim 1, characterized in that, The filter press (2) consists of a frame (21) and a panel (22). The frame (21) is a glass fiber reinforced PP frame, and the panel (22) is a mineral-filled PP board.

3. A high-pressure filter press according to claim 1, characterized in that, The support rod (81) is shaped like a square and has a notch at its lower end. The notch of the support rod (81) is fixed to the sliding block (9). The lower end of the locking block (89) is L-shaped and its L end is inclined.

4. A high-pressure filter press according to claim 1, characterized in that, The telescopic rod (88) consists of a sleeve rod, a sliding rod and a return spring. The sleeve rod is hinged to the connecting frame (87), and the sliding rod is slidably connected inside the sleeve rod. The return spring is fixedly connected between the end of the sliding rod located inside the sleeve rod and the inner side of the sleeve rod. The end of the sliding rod located outside the sleeve rod is hinged to the locking block (89).

5. A high-pressure filter press according to claim 1, characterized in that, The elastic support (86) consists of a set of cylindrical vertical rods and support springs. The set of vertical rods are symmetrically fixedly connected to the upper end of the connecting frame (87) and pass through the support frame (85). The set of support springs are fixedly connected between the inner side of the support frame (85) and the upper end of the connecting frame (87).

6. A high-pressure filter press according to claim 1, characterized in that, The sliding block (9) is I-shaped and its upper end is U-shaped. The limiting component includes two rotating shafts (11) that are symmetrically rotatably installed on the U-shaped end of the sliding block (9). Each rotating shaft (11) is fixedly connected to a stop block (10) and a stop block (12) located inside the U-shaped end of the sliding block (9). A torsion spring is installed between the stop block (10), the stop block (12) and the inside of the U-shaped end of the sliding block (9). Each rotating shaft (11) passes through the U-shaped end of the sliding block (9), and a protrusion (13) is fixedly connected to one end of the shaft (9). A rod (14) is inserted into the end of each protrusion (13) away from the rotating shaft (11).

7. A high-pressure filter press according to claim 6, characterized in that, The limiting component also includes two servo motors (5) that are symmetrically fixed on the frame (1). The output shaft of the servo motor (5) is fixedly connected to a threaded rod (6) that passes through the sliding block (9). The sliding block (9) has a threaded hole in the middle, and the threaded hole is adapted to the thread on the outside of the threaded rod (6).

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