Full-automatic discharging plate-and-frame filter press

Abstract

The invention discloses a full-automatic discharging plate-and-frame filter press, and relates to the technical field of filter presses. The filter press comprises a connecting frame, a plate-and-frame filter pressing piece, a crushing mesh screen, a conveying belt, a crushing mechanism, a horizontal driving assembly and a reciprocating pushing assembly. The crushing mechanism comprises a motor, a gear box and a crushing roller. The horizontal driving assembly is used for driving the gearbox and the crushing roller to move horizontally. The reciprocating pushing assembly is used for driving the crushing mesh screen to slide back and forth. According to the device, plate-shaped materials in the crushing mesh screen are crushed during movement and rotation of the crushing roller, and meanwhile, the crushed materials can be smoothly dispersed and fall to the conveying belt in cooperation with reciprocating screening of the crushing mesh screen, so that the problem that the plate-shaped materials are prone to accumulation and blockage after filter pressing is effectively solved, automatic crushing and discharging of the materials are achieved, and the working efficiency is improved. And the subsequent collection, cleaning and transportation are greatly facilitated.

Description

Technical Field

[0001] This invention relates to the field of filter press technology, and in particular to a fully automatic discharge plate and frame filter press. Background Technology

[0002] Plate and frame filter presses were among the first machines used in chemical dewatering. They utilize a special filter medium to apply pressure to the material, causing the liquid to seep out. The working principle of a plate and frame filter press is based on the pressure difference between the plates and frames to separate solid particles from a suspension. Although plate and frame filter presses are generally intermittently operated, require significant investment in infrastructure, and have relatively low filtration capacity, they offer advantages such as high filtration driving force, high solids content in the filter cake, clear filtrate, high solids recovery rate, and low consumption of conditioning chemicals, making them a commonly used solid-liquid separation device.

[0003] However, in existing plate and frame filter presses, after filtration, the material is squeezed into a plate shape on the filter plates. After the material separates from the plate and frame filter press and falls onto the inclined plate and conveyor belt, the material may still remain in a plate shape and not easily disperse, which can easily cause accumulation and blockage, making subsequent collection, cleaning and transportation inconvenient. Summary of the Invention

[0004] The purpose of this invention is to provide a fully automatic discharge plate and frame filter press to solve the problems existing in the prior art.

[0005] To achieve the above objectives, the present invention provides a fully automatic discharge plate and frame filter press, comprising:

[0006] A connecting frame, wherein a plate and frame filter press is provided at the top of the connecting frame;

[0007] A crushing screen is slidably disposed inside the connecting frame, and the crushing screen is used to collect the plate-shaped material discharged from the plate and frame filter press.

[0008] A conveyor belt is installed inside the connecting frame and is positioned below the crushing screen.

[0009] A crushing mechanism is installed on the connecting frame. The crushing mechanism is used to crush the plate-shaped materials inside the crushing screen. The crushing mechanism includes a motor, a gearbox, and a crushing roller. The motor is connected to the crushing roller through the gearbox, and the crushing roller is located inside the crushing screen.

[0010] A horizontal drive assembly is mounted on the gearbox, and the horizontal drive assembly is used to drive the gearbox and the crushing roller to move horizontally.

[0011] A reciprocating push assembly is installed on the connecting frame, and the reciprocating push assembly is used to drive the crushing screen to slide back and forth.

[0012] Preferably, the connecting frame has a limiting groove, the crushing screen has an elongated hole corresponding to the limiting groove, and the gearbox is slidably disposed in the limiting groove; the output shaft of the gearbox passes through the elongated hole and is connected and fixed to the crushing roller.

[0013] Preferably, the gearbox is provided with a worm gear and a worm; the worm is coaxially fixed on the output shaft of the motor, the motor is fixedly connected to the crushing roller through the worm, and the worm and the crushing roller are coaxially arranged; the worm gear is rotatably connected in the gearbox, and the worm meshes with the worm gear.

[0014] Preferably, the horizontal drive assembly includes a lead screw and a slider. The lead screw is rotatably connected in the limiting through groove. A horizontal keyway is provided on the lead screw. A connecting key is fixedly connected to the inner wall of the worm gear. The connecting key is limited to sliding within the horizontal keyway. The worm gear is slidably mounted on the lead screw via the connecting key. The slider is fixedly connected to the outer wall of the gearbox and is threadedly connected to the lead screw.

[0015] Preferably, a limiting block is fixedly connected to the inner wall of the connecting frame, and the crushing screen is slidably installed on the limiting block.

[0016] Preferably, the reciprocating push assembly includes a first connecting shaft, a first push block, a second push block, a second connecting shaft, a first connecting plate, and a first connecting column; the first connecting shaft is coaxially fixed with the lead screw, the first push block is fixed at the end of the first connecting shaft, the first connecting column is fixedly connected to the crushing screen, the first connecting column is fixedly connected to the second connecting shaft through the first connecting plate, the end of the second connecting shaft is fixedly connected to the second push block, the surface of the first push block near the second push block is an arc-shaped convex surface, the surface of the second push block near the first push block is an arc-shaped concave surface, and the arc-shaped convex surface and the arc-shaped concave surface are adapted to each other.

[0017] Preferably, the reciprocating push assembly further includes a guide post, a second connecting plate, a second connecting post, and a compression spring. The second connecting post is fixedly connected to the crushing screen, and the second connecting plate is fixedly connected to the end of the second connecting post. The guide post is fixedly connected to the connecting frame, and the second connecting plate is slidably sleeved on the guide post. The compression spring is sleeved on the guide post, and both ends of the compression spring are fixedly connected to the second connecting plate and the connecting frame, respectively.

[0018] Preferably, the motor is equipped with an encoder.

[0019] Preferably, the rotation direction of the motor can be changed to drive the gearbox to reciprocate within the limiting through groove.

[0020] Preferably, the axis of the crushing roller is arranged perpendicular to the axis of the lead screw.

[0021] Compared with the prior art, the present invention has the following advantages and technical effects:

[0022] 1. The fully automatic discharge plate and frame filter press provided by the present invention uses a crushing roller to move and rotate within the crushing screen to crush plate-shaped materials within the screen. Simultaneously, the reciprocating sieving motion of the crushing screen allows the crushed materials to be smoothly dispersed and fall onto the conveyor belt, thereby effectively solving the problem of easy accumulation and blockage of plate-shaped materials after filter pressing, and greatly facilitating the subsequent collection, cleaning and transportation of materials.

[0023] 2. This invention, through a linkage design, converts the rotational motion of the crushing roller into its own horizontal movement and the reciprocating motion of the crushing screen. It has a compact structure, a single power source, a high degree of automation, and stable and reliable operation. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the structure of the fully automatic discharge plate and frame filter press of the present invention.

[0026] Figure 2 for Figure 1 A magnified view of part A in the image.

[0027] Figure 3 This is a schematic diagram of the internal structure of the gearbox of the present invention.

[0028] In the diagram: 1. Connecting frame; 2. Plate and frame filter press; 3. Crushing screen; 4. Conveyor belt; 5. Crushing roller; 6. Elongated hole; 7. Limiting groove; 8. Gearbox; 9. Motor; 10. Lead screw; 11. Slider; 12. Worm; 13. Worm wheel; 14. First connecting shaft; 15. First pushing block; 16. Second pushing block; 17. Second connecting shaft; 18. First connecting plate; 19. First connecting column; 20. Guide column; 21. Second connecting plate; 22. Second connecting column; 23. Compression spring; 24. Limiting block. Detailed Implementation

[0029] It should be noted that, unless otherwise specified, the embodiments and features described in this invention can be combined with each other. The described embodiments are merely some, not all, of the embodiments of this invention. All other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this invention. The invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0030] like Figures 1 to 3 As shown, the present invention provides a fully automatic discharge plate and frame filter press, comprising:

[0031] Connecting frame 1, with plate and frame filter press 2 installed at the top of connecting frame 1;

[0032] The crushing screen 3 is slidably set inside the connecting frame 1. The crushing screen 3 is used to collect the plate-shaped material discharged from the plate and frame filter press 2.

[0033] Conveyor belt 4 is installed inside the connecting frame 1 and is positioned below the crushing screen 3;

[0034] The crushing mechanism is installed on the connecting frame 1. The crushing mechanism is used to crush the plate-shaped materials in the crushing screen 3. The crushing mechanism includes a motor 9, a gearbox 8 and a crushing roller 5. The motor 9 is connected to the crushing roller 5 through the gearbox 8. The crushing roller 5 is located in the crushing screen 3.

[0035] A horizontal drive assembly is mounted on the gearbox 8 and is used to drive the gearbox 8 and the crushing roller 5 to move horizontally.

[0036] The reciprocating push component is installed on the connecting frame 1. The reciprocating push component is used to drive the crushing screen 3 to slide back and forth.

[0037] This invention, through the coordinated arrangement of the connecting frame 1, plate and frame filter press 2, crushing screen 3, conveyor belt 4, crushing mechanism, horizontal drive component, and reciprocating drive component, can achieve the complete function of automatically receiving, crushing, screening, and conveying the plate-shaped material formed after filter pressing. The crushing roller 5 rotates during horizontal movement, enabling comprehensive and efficient crushing of materials at different positions within the crushing screen 3; simultaneously, the reciprocating sliding of the crushing screen 3 causes the material to continuously tumble and disperse during the crushing process, generating relative motion with the screen, accelerating the falling of small particles through the mesh after crushing, effectively avoiding material accumulation and blockage on the screen surface or at the discharge port, and realizing full automation and smooth operation from filter pressing to discharge.

[0038] The scheme is further optimized by opening a limiting groove 7 on the connecting frame 1, and opening an elongated hole 6 on the crushing screen 3 that corresponds to the limiting groove 7. The gearbox 8 is limited and slidably disposed in the limiting groove 7; the output shaft of the gearbox 8 passes through the elongated hole 6 and is connected and fixed to the crushing roller 5.

[0039] The limiting groove 7 and the elongated hole 6 provide precise guidance and decouple the motion. The limiting groove 7 provides a stable and unique horizontal sliding track for the gearbox 8, ensuring the straightness and stability of the crushing roller 5's movement. The elongated hole 6 allows the output shaft of the gearbox 8 to move relative to the crushing screen 3 during its reciprocating sliding motion. This achieves independent horizontal movement of the crushing roller 5 relative to the crushing screen 3 and coordinated vertical movement, ensuring that the crushing and screening functions operate independently and collaboratively.

[0040] The scheme is further optimized by installing a worm gear 13 and a worm 12 inside the gearbox 8; the worm 12 is coaxially fixed on the output shaft of the motor 9, and the motor 9 is fixedly connected to the crushing roller 5 through the worm 12, with the worm 12 and the crushing roller 5 being coaxially arranged; the worm gear 13 is rotatably connected inside the gearbox 8, and the worm 12 meshes with the worm gear 13.

[0041] The worm gear 13 and worm 12 serve to convert motion and transmit power. The motor 9 directly drives the worm 12 and the crushing roller 5 to rotate at high speed, performing the crushing function. Simultaneously, the worm 12 and worm gear 13 form a worm gear pair, converting the rotational motion of the motor 9's output shaft into the rotational motion of the worm gear 13, providing the power source for subsequent horizontal movement. This integrated design allows a single motor 9 to simultaneously drive both crushing and movement, simplifying the transmission system and improving energy efficiency and reliability.

[0042] Further optimization of the scheme: the horizontal drive assembly includes a lead screw 10 and a slider 11. The lead screw 10 is rotatably connected in the limiting through groove 7. A horizontal keyway is provided on the lead screw 10. A connecting key is fixedly connected to the inner wall of the worm gear 13. The connecting key is limited and slidable in the horizontal keyway. The worm gear 13 is slidably set on the lead screw 10 through the connecting key. The slider 11 is fixedly connected to the outer wall of the gearbox 8. The slider 11 is threadedly connected to the lead screw 10.

[0043] The keyed connection between the lead screw 10, slider 11, and worm gear 13 and the lead screw 10 converts rotary motion into precise linear movement and transmits power. When the worm gear 13 rotates, its inner wall connects with the horizontal keyway on the lead screw 10, transmitting torque to the lead screw 10 and causing it to rotate. The rotating lead screw 10, through its threaded engagement with the slider 11, drives the slider 11, along with the entire gearbox 8 and the crushing roller 5, to move precisely horizontally along the limiting through groove 7. This design cleverly utilizes the rotational power from the worm gear 13 to drive its own movement, achieving internal transmission and conversion of motion.

[0044] The scheme is further optimized by fixing a limiting block 24 to the inner wall of the connecting frame 1, and sliding the crushing screen 3 on the limiting block 24.

[0045] The limiting block 24 serves to support and guide the crushing screen 3. The horizontally positioned limiting block 24 helps the material spread evenly within the crushing screen 3, and its reciprocating sliding action produces a better crushing effect, promoting screening. The limiting block 24 provides a stable sliding track for the crushing screen 3, ensuring smooth and accurate reciprocating motion.

[0046] The scheme is further optimized. The reciprocating push assembly includes a first connecting shaft 14, a first push block 15, a second push block 16, a second connecting shaft 17, a first connecting plate 18, and a first connecting column 19. The first connecting shaft 14 is coaxially fixed with the lead screw 10. The first push block 15 is fixed to the end of the first connecting shaft 14. The first connecting column 19 is fixedly connected to the crushing screen 3. The first connecting column 19 is fixedly connected to the second connecting shaft 17 through the first connecting plate 18. The end of the second connecting shaft 17 is fixedly connected to the second push block 16. The surface of the first push block 15 near the second push block 16 is an arc-shaped convex surface, and the surface of the second push block 16 near the first push block 15 is an arc-shaped concave surface. The arc-shaped convex surface and the arc-shaped concave surface are compatible.

[0047] The arrangement of components such as the first connecting shaft 14, the first pushing block 15, and the second pushing block 16 allows the continuous rotational motion of the lead screw 10 to be intermittently converted into a pushing force on the crushing screen 3. When the lead screw 10 rotates, driving the first connecting shaft 14 and the first pushing block 15 to rotate synchronously, the arc-shaped convex surface on the first pushing block 15 periodically contacts and pushes the arc-shaped concave surface on the second pushing block 16. Due to the arc surface design, this pushing is a smoothly transitioning extrusive force, which is then transmitted to the crushing screen 3 through the second connecting shaft 17, the first connecting plate 18, and the first connecting column 19, causing it to produce a rapid sliding displacement. This achieves the reciprocating motion of the crushing screen 3 using the same power source (rotation of the lead screw 10) that drives the movement of the crushing roller 5.

[0048] Further optimization of the scheme: the reciprocating drive component also includes a guide post 20, a second connecting plate 21, a second connecting post 22, and a compression spring 23. The second connecting post 22 is fixedly connected to the crushing screen 3, and the second connecting plate 21 is fixedly connected to the end of the second connecting post 22. The guide post 20 is fixedly connected to the connecting frame 1, and the second connecting plate 21 is slidably sleeved on the guide post 20. The compression spring 23 is sleeved on the guide post 20, and the two ends of the compression spring 23 are fixedly connected to the second connecting plate 21 and the connecting frame 1, respectively.

[0049] The guide post 20, the second connecting plate 21, and the compression spring 23 provide a restoring force, motion guidance, and buffering for the crushing screen 3. When the crushing screen 3 is pushed and slid by the first pushing block 15, it compresses or stretches the compression spring 23, storing energy. When the first pushing block 15 rotates and the pushing force on the second pushing block 16 disappears, the compression spring 23 releases energy, driving the crushing screen 3 to quickly return to its original position. The guide post 20 ensures that the second connecting plate 21 and the crushing screen 3 connected to it slide along a fixed straight line, making the reciprocating motion smoother and more precise. The entire assembly enables the crushing screen 3 to generate rhythmic, rapid reciprocating vibration (screening motion), greatly improving screening efficiency.

[0050] To further optimize the design, an encoder is installed on motor 9.

[0051] By setting the encoder, the speed, direction, and rotational position of motor 9 can be accurately monitored and controlled. The feedback signal provided by the encoder can be connected to the control system to achieve precise adjustment of the rotational speed of crushing roller 5 to meet the crushing requirements of the material; at the same time, it also provides precise positional basis for controlling motor 9 to periodically reverse, thereby realizing the automatic reciprocating movement of gearbox 8 and crushing roller 5.

[0052] With further optimization, the rotation direction of motor 9 can be changed to drive gearbox 8 to reciprocate within limit groove 7.

[0053] By allowing the rotation direction of motor 9 to be changed, the crushing roller 5 can be driven to automatically reciprocate within the crushing screen 3. When motor 9 rotates forward, it drives gearbox 8 to move in one direction via worm gear and lead screw transmission; when motor 9 rotates in reverse, it drives gearbox 8 to move in the opposite direction. In this way, without the need for an additional linear drive motor, the reciprocating scanning crushing of crushing roller 5 within the entire length of crushing screen 3 can be achieved by controlling the direction of a single motor, resulting in more comprehensive coverage and more uniform crushing.

[0054] The design was further optimized so that the axis of the crushing roller 5 was set perpendicular to the axis of the lead screw 10.

[0055] By aligning the axis of the crushing roller 5 perpendicular to the axis of the lead screw 10, the direction of movement of the crushing roller 5 is perpendicular to its rotation axis. This means that the crushing roller 5 moves in a horizontal direction perpendicular to its length. This movement allows the crushing teeth or protrusions on the crushing roller 5 to act on the material within the crushing screen 3 in a "plowing" or "sweeping" manner. Compared to simply rotating or moving only along the axis, this produces a more effective shearing, squeezing, and crushing effect, especially for plate-shaped materials, which can be better broken up and crushed.

[0056] The fully automatic discharge plate and frame filter press provided by this invention operates as follows: After the filter pressing operation is completed, the plate and frame filter press 2 discharges the plate-shaped material formed by the filter press, which falls into the crushing screen 3 below. The motor 9 is started, driving the worm gear 12 and the crushing roller 5 to rotate, while simultaneously driving the lead screw 10 to rotate via the worm wheel 13 and connecting key. The rotation of the lead screw 10 drives the gearbox 8 and the crushing roller 5 to move horizontally along the limiting groove 7 via the slider 11; on the other hand, it drives the first pushing block 15 to rotate via the coaxially fixed first connecting shaft 14. The first pushing block 15 periodically pushes the second pushing block 16, causing the crushing screen 3 to slide against the force of the compression spring 23, and then reset under the action of the compression spring 23, thereby realizing the reciprocating vibration of the crushing screen 3. During this process, the horizontally moving crushing roller 5, under its rotational action, rolls, crushes, and grinds the material inside the crushing screen 3. Simultaneously, the reciprocating vibration of the crushing screen 3 causes the material to continuously tumble and jump, ensuring full contact with the crushing roller 5. The crushed small particles are then screened through the mesh and fall onto the conveyor belt 4 below, where they are transported away. A control system (which may include encoder feedback) controls the motor 9 to periodically reverse direction, allowing the crushing roller 5 to reciprocate within the crushing screen 3, achieving comprehensive crushing. This invention, through a single drive system, achieves the crushing, screening, and conveying of materials in a continuous, automatic, and efficient manner. This significantly improves the smoothness of material discharge and the efficiency of subsequent processing in the plate and frame filter press, solving the problem of material blockage.

[0057] The above are merely preferred embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present invention should be included within the scope of protection of the present invention.

Claims

1. A fully automatic discharge plate-and-frame filter press, characterized in that, The utility model relates to a plate frame filter element (2) is provided with on the top end of connecting frame (1), crushing screen (3) is slidably arranged in the inside of connecting frame (1), crushing screen (3) is used for receiving the plate block material discharged by plate frame filter element (2), conveying belt (4) is installed in the inside of connecting frame (1), and conveying belt (4) is arranged below crushing screen (3), crushing mechanism is installed on connecting frame (1), and crushing mechanism is used for crushing the plate block material in crushing screen (3), and crushing mechanism includes motor (9), gear box (8) and crushing roller (5), motor (9) is connected with crushing roller (5) through gear box (8), and crushing roller (5) is located in crushing screen (3), horizontal drive assembly is installed on gear box (8), and horizontal drive assembly is used for driving gear box (8) and crushing roller (5) horizontal movement, reciprocating push assembly is installed on connecting frame (1), and reciprocating push assembly is used for driving crushing screen (3) reciprocating sliding. Limiting through slot (7) is formed in the connecting frame (1), and a long hole (6) corresponding to the limiting through slot (7) is formed in the crushing screen (3), and the gear box (8) is limitingly and slidably arranged in the limiting through slot (7), and the output shaft of the gear box (8) penetrates the long hole (6) and is connected with the crushing roller (5). The worm gear (13) and the worm (12) are arranged in the gear box (8), the worm (12) is coaxially fixed on the output shaft of the motor (9), the motor (9) is fixedly connected with the crushing roller (5) through the worm (12), and the worm (12) is coaxially arranged with the crushing roller (5), the worm gear (13) is rotatably connected in the gear box (8), and the worm (12) is engaged with the worm gear (13). The horizontal drive assembly includes a lead screw (10) and a sliding block (11), the lead screw (10) is rotatably connected in the limiting through slot (7), a horizontal key groove is formed in the lead screw (10), a connecting key is fixedly connected to the inner wall of the worm gear (13), the connecting key is limitingly and slidably arranged in the horizontal key groove, the worm gear (13) is slidably arranged on the lead screw (10) through the connecting key, the sliding block (11) is fixedly connected to the outer wall of the gear box (8), and the sliding block (11) is threadedly connected with the lead screw (10). A limiting block (24) is fixedly connected to the inner wall of the connecting frame (1), and the crushing screen (3) is slidably arranged on the limiting block (24). ​ ​ 2. The fully automatic discharge plate frame filter press according to claim 1, characterized in that, ​ 3. The fully automatic discharge plate frame filter press according to claim 2, characterized in that, ​ 4. The fully automatic discharge plate frame filter press according to claim 3, characterized in that, ​ 5. The fully automatic discharge plate frame filter press according to claim 4, characterized in that, ​ 6. The fully automatic discharge plate frame filter press according to claim 5, characterized in that The reciprocating pushing assembly comprises a first connecting shaft (14), a first pushing block (15), a second pushing block (16), a second connecting shaft (17), a first connecting plate (18) and a first connecting column (19); the first connecting shaft (14) is coaxially fixed with the lead screw (10), the first pushing block (15) is fixed at the end of the first connecting shaft (14), the first connecting column (19) is fixedly connected on the crushing screen (3), the first connecting column (19) is fixedly connected with the second connecting shaft (17) through the first connecting plate (18), the end of the second connecting shaft (17) is fixedly connected with the second pushing block (16), the surface of the first pushing block (15) close to the second pushing block (16) is an arc convex surface, the surface of the second pushing block (16) close to the first pushing block (15) is an arc concave surface, and the arc convex surface and the arc concave surface are matched.

7. The fully automatic discharge plate frame filter press according to claim 6, characterized in that The reciprocating pushing assembly further comprises a guide column (20), a second connecting plate (21), a second connecting column (22) and a compression spring (23), the second connecting column (22) is fixedly connected on the crushing screen (3), the end of the second connecting column (22) is fixedly connected with the second connecting plate (21), the guide column (20) is fixedly connected on the connecting frame (1), and the second connecting plate (21) is slidingly sleeved on the guide column (20); the compression spring (23) is sleeved on the guide column (20), and the two ends of the compression spring (23) are fixedly connected with the second connecting plate (21) and the connecting frame (1) respectively.

8. The fully automatic discharge plate frame filter press according to claim 2, characterized in that, An encoder is arranged on the motor (9).

9. The fully automatic discharge plate frame filter press according to claim 8, characterized in that, The rotating direction of the motor (9) can be changed to drive the gear box (8) to reciprocate in the limiting groove (7).

10. The fully automatic discharge plate frame filter press according to claim 4, characterized in that, The axis of the crushing roller (5) is arranged perpendicularly to the axis of the lead screw (10).

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