Coal slime filter press convenient for cleaning residual filter cake on diaphragm

Abstract

The invention relates to the technical field of filter presses, and discloses a coal slime filter press convenient for cleaning residual filter cakes on a diaphragm, which comprises a filter pressing unit, an oscillating unloading unit and a stirring unloading unit. According to the vibration discharging device, an electric sliding block in the vibration discharging unit moves to a filter pressing plate at a designated position, at the moment, a side plate on the side wall pushes a turning plate to turn over, when the side plate completely moves to a top block, resetting is conducted through a torsional spring, and at the moment, when the electric sliding block resets, the turning plate can push the side plate to move; in the moving process, a top block and an insertion rod slide in a groove in a reciprocating manner to push a side plate and a vertical rod to move up and down, so that the filter pressing plate can shake up and down, a diaphragm in the filter pressing plate can shake in the separation process of the filter pressing plate, and a filter cake adhered to the diaphragm can fall off; the purpose of automatic cleaning is achieved, and operation is easy.

Description

Technical Field

[0001] The invention belongs to the technical field of filter pressing, and in particular relates to a coal sludge filter press which is convenient for cleaning residual filter cakes on a diaphragm. Background Art

[0002] The diaphragm filter press is a widely used equipment for solid-liquid separation. Its core working principle is to achieve effective separation of solids and liquids through pressure difference. The main components of the diaphragm filter press include filter plates, diaphragms, hydraulic systems, control systems, etc. When working, the liquid to be treated is first input into the filter chamber of the filter press through the feed pump. Driven by the hydraulic system, the filter plates are tightly closed to form a closed filtering space. As the pressure gradually increases, the solid particles in the liquid are trapped on the filter cloth to form a filter cake, while the clear liquid flows out through the gap between the filter cloth and the filter plate, completing the solid-liquid separation process. After the solid-liquid separation is completed, the squeezing operation can be performed. At this time, the diaphragm filter press will apply external pressure to move the movable diaphragm toward the filter cake chamber to further squeeze the filter cake to remove more liquid from the filter cake, thereby improving the solid-liquid separation efficiency.

[0003] However, when the existing diaphragm filter press is performing a pressing operation, the diaphragm will move toward one side of the filter cake chamber to further press the filter cake. However, after the pressing is completed, a portion of the residue in the filter cake will stick to the diaphragm, which requires manual cleaning, and the operation is relatively complicated.

[0004] In view of this, the present invention is proposed. Summary of the invention

[0005] In order to solve the above technical problems, the basic concept of the technical solution adopted by the present invention is:

[0006] A coal slime filter press convenient for cleaning residual filter cake on a diaphragm comprises a filter press unit, an oscillating discharge unit and a toggling discharge unit.

[0007] The filter press unit comprises a pair of support seats, a plurality of pairs of filter press plates and a hydraulic push rod, a pair of the support seats are provided with a cross beam, a plurality of pairs of filter press plates are slidably arranged on the cross beam, the hydraulic push rod is installed on the support seat, and a pressure plate is installed at the output end of the hydraulic push rod, the end of the pressure plate is fitted with the filter press plate, a filter press cavity is provided inside the filter press plate, and a diaphragm is provided on the filter press cavity;

[0008] The oscillating unloading unit comprises a positioning plate and an electric slider sliding on the positioning plate, the positioning plate is installed on both sides of the support seat, a flap is swingably provided on the electric slider, a torsion spring is clamped on the flap, a top block is plugged on the electric slider, a plug rod is provided at the bottom of the top block, the bottom of the plug rod and the bottom of the positioning plate are slidably connected with the groove provided for the filter press plate, a top rod is installed on the side wall of the filter press plate, a vertical rod is installed at the bottom of the top rod, the vertical rod corresponds to the top block, a side plate is installed on the side wall of the vertical rod, and the side plate corresponds to the flap;

[0009] The toggle unloading unit comprises a pair of push rods and a pair of first toggle plates, and the pair of push rods and the pair of first toggle plates are slidably arranged in the filter press chamber;

[0010] A push block is installed on the push rod, a turntable is installed at the end of the push rod, a strip plate is slidably arranged on the turntable, a pressure rod is installed on the strip plate, the pressure rod movably penetrates the side wall of the filter press plate, an extrusion block is installed at the end of the pressure rod, and the extrusion block is slidably connected to the inclined surface of the guide strip installed on the side wall of the crossbeam;

[0011] A second toggle plate is slidably arranged on the side wall of the first toggle plate, and the second toggle plate is slidably connected to the inclined groove opened at the bottom of the filter press chamber. A sliding sleeve is installed at the end of the first toggle plate, a swing arm is installed on the side wall of the sliding sleeve, and a positioning block is installed at the end of the swing arm, and the positioning blocks between adjacent filter press plates correspond to each other.

[0012] As a preferred embodiment of the present invention, a support leg is installed at the bottom of the support seat, a base is installed at the bottom of the support leg, an input pipe is installed on the support seat, a through pipe is installed on the filter press plate, and the through pipe and the input pipe are connected to each other.

[0013] As a preferred embodiment of the present invention, a connecting block is installed at the center of the pressure plate, the pressure plate covers the entire filter press plate, reinforcing ribs are installed around the connecting block, the other side of the reinforcing ribs is on the pressure plate, and the reinforcing ribs are triangular, and the connecting block is interconnected with the output end of the hydraulic push rod.

[0014] As a preferred embodiment of the present invention, connecting brackets are installed on the side walls of both sides of the filter press plate, a top rod is connected to the connecting bracket, a guide slider is movably inserted on the top rod and the vertical rod, a guide groove is opened on the side wall of the beam, and the guide slider is slidably set on the guide groove.

[0015] As a preferred embodiment of the present invention, a collecting box is installed at the bottom of the filter press plate, filter holes are opened on the side walls of the filter press chamber, the ends of the filter holes are connected to the collecting box, discharge pipes are arranged on both sides of the collecting box, valves are arranged on the discharge pipes, and the discharge pipes are L-shaped.

[0016] As a preferred embodiment of the present invention, a slide rail is installed on the positioning plate, the electric slider is slidably set on the slide rail, and a mounting groove is opened on the electric slider. The sizes of the mounting groove and the flap are adapted, and the torsion spring is clamped on the side wall of the mounting groove and the rotation center of the flap.

[0017] As a preferred embodiment of the present invention, a positioning cover is installed at the bottom of the electric slider, the insertion rod movably passes through the positioning cover, a partition is slidably arranged inside the positioning cover, the partition and the insertion rod are connected to each other, an extrusion spring is sleeved on the insertion rod located on the inner side of the positioning cover, one end of the extrusion spring is clamped on the partition, and the other end of the extrusion spring is clamped on the positioning cover, and a guide block is arranged at the bottom of the insertion rod.

[0018] As a preferred embodiment of the present invention, a rotating shaft is installed at the rotating center of the turntable, the rotating shaft is rotatably installed on the filter press chamber, a sliding rod is installed at the eccentric position of the turntable, a strip groove is opened on the strip plate, and the sliding rod is slidably set on the strip groove.

[0019] As a preferred embodiment of the present invention, a baffle is installed at the connection between the pressure rod and the strip plate, and a return spring is sleeved on the pressure rod. One end of the return spring is clamped on the baffle, and the other end of the return spring is clamped on the side wall of the filter press plate.

[0020] As a preferred embodiment of the present invention, a clamping plate is installed on the side wall of the positioning block, and a positioning spring is clamped in the clamping plate and the inner cavity of the filter press plate. The positioning spring is sleeved on the side wall of the positioning block, the swing arm is in an inclined state, and a limiting rod is slidingly arranged inside the sliding sleeve, and both ends of the limiting rod are installed in the inner wall of the filter press cavity.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] An oscillating unloading unit is provided, in which the electric slider in the oscillating unloading unit moves to the filter plate at the specified position, and the side plate of the side wall will push the flap to flip over. When the side plate is completely moved to the top block, it is reset by the torsion spring, and when the electric slider is reset, the flap can push the side plate to move, and then the entire filter plate starts to separate. In the process of moving, the top block and the insertion rod slide back and forth in the groove, pushing the side plate and the vertical rod to move up and down, and then the filter plate can shake up and down, thereby ensuring that in the process of separating the filter plate, the diaphragm inside the filter plate can shake, and then the filter cake stuck on the isolation can fall off, thereby achieving the purpose of automatic cleaning and simple operation.

[0023] By providing a toggle unloading unit, when the filter press plate moves and separates, the adjacent positioning blocks are separated, and the positioning blocks can move upward at this time, and the sliding sleeve is driven to move toward the center by the swing arm, and the sliding sleeve will drive the first toggle plate to move toward the center, and at this time the second toggle plate of the side wall moves toward the center along the inclined groove, thereby changing the position of the diaphragm arch, so that the position of the arch on the surface of the diaphragm is in a constantly changing state, ensuring that the pasted filter cake cannot be well adsorbed on it, thereby achieving the purpose of discharging, and when the filter press plate moves upward at this time, the extrusion block is driven to move inwardly through the guide strip, and the extrusion block drives the pressure rod to move, and finally the turntable is driven to rotate through the strip plate, and the turntable drives the two push rods to rotate at the same time, constantly toggling the raised position of the diaphragm, changing the surface shape of the diaphragm, and further making it impossible for the filter cake to be well adsorbed on the surface, thereby achieving the purpose of discharging.

[0024] The specific implementation modes of the present invention are further described in detail below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In the attached picture:

[0026] Figure 1 A schematic diagram of the three-dimensional structure of a coal slime filter press that is convenient for cleaning residual filter cake on the diaphragm;

[0027] Figure 2 It is a schematic diagram of the front structure of a coal slime filter press which is convenient for cleaning the residual filter cake on the diaphragm;

[0028] Figure 3 It is a schematic diagram of the side structure of a coal slime filter press which is convenient for cleaning the residual filter cake on the diaphragm;

[0029] Figure 4 A partial structural schematic diagram of a coal slime filter press for facilitating cleaning of residual filter cake on a diaphragm (I);

[0030] Figure 5 A cross-sectional view of an electric slider of a coal slime filter press for facilitating cleaning of residual filter cake on a diaphragm;

[0031] Figure 6 A partial structural schematic diagram of a coal slime filter press for facilitating cleaning of residual filter cake on a diaphragm (II);

[0032] Figure 7 A three-dimensional diagram of a filter plate of a coal slime filter press that is convenient for cleaning residual filter cake on a diaphragm;

[0033] Figure 8 A schematic diagram of the internal structure of a filter plate of a coal slime filter press that is convenient for cleaning residual filter cake on a diaphragm;

[0034] Fig. 9 A cross-sectional view of an extrusion block of a coal slime filter press for facilitating cleaning of residual filter cake on a diaphragm;

[0035] Fig.10 A cross-sectional view of a positioning block of a coal slime filter press for facilitating cleaning of residual filter cake on a diaphragm;

[0036] Fig.11 The present invention is a side cross-sectional view of a filter press plate of a coal slime filter press which is convenient for cleaning residual filter cake on a diaphragm.

[0037] In the figure:

[0038] 100, filter press unit; 101, support seat; 1011, support leg; 1012, base; 1013, input pipe; 102, crossbeam; 103, hydraulic push rod; 1031, pressure plate; 1032, connecting block; 1033, reinforcing rib; 104, filter press plate; 1041, connecting bracket; 1042, push rod; 1043, guide slider; 1044, guide chute; 1045, filter press chamber; 105, diaphragm; 1051, through pipe; 106, collection box; 1061, filter hole; 1062, discharge pipe;

[0039] 200, oscillating unloading unit; 201, electric slider; 2011, positioning plate; 2012, slide rail; 202, flap; 2021, mounting groove; 2022, torsion spring; 203, vertical rod; 2031, side plate; 204, top block; 2041, plug rod; 2042, guide block; 2043, groove; 205, positioning cover; 2051, partition; 2052, extrusion spring;

[0040] 300, toggle unloading unit; 301, extrusion block; 3011, guide bar; 302, pressure rod; 3021, baffle; 3022, return spring; 303, strip plate; 3031, strip groove; 304, turntable; 3041, slide bar; 3042, rotating shaft; 305, push rod; 3051, push block; 306, positioning block; 3061, clamping plate; 3062, positioning spring; 3063, swing arm; 3064, sliding sleeve; 3065, limit rod; 307, first toggle plate; 3071, second toggle plate; 3072, inclined groove. DETAILED DESCRIPTION

[0041] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention.

[0042] Embodiment 1:

[0043] like Figures 1 to 11As shown, a coal slime filter press convenient for cleaning residual filter cake on a diaphragm comprises a filter press unit 100, an oscillating discharge unit 200 and a toggle discharge unit 300, wherein the filter press unit 100 comprises a pair of support seats 101, a plurality of pairs of filter press plates 104 and a hydraulic push rod 103, wherein a cross beam 102 is mounted on the pair of support seats 101, and a plurality of pairs of filter press plates 104 are slidably arranged on the cross beam 102, the hydraulic push rod 103 is mounted on the support seat 101, and a pressing plate 1031 is mounted on the output end of the hydraulic push rod 103, the end of the pressing plate 1031 is fitted with the filter press plate 104, a filter press cavity 1045 is provided inside the filter press plate 104, and a diaphragm 105 is arranged on the filter press cavity 1045;

[0044] The oscillating unloading unit 200 includes a positioning plate 2011 and an electric slider 201 sliding on the positioning plate 2011, the positioning plate 2011 is installed on both sides of the support seat 101, a flap 202 is swingably provided on the electric slider 201, a torsion spring 2022 is clamped on the flap 202, a top block 204 is plugged on the electric slider 201, a plug rod 2041 is provided at the bottom of the top block 204, the bottom of the plug rod 2041 is slidably connected with a groove 2043 provided on the bottom of the positioning plate 2011, a top rod 1042 is installed on the side wall of the filter press plate 104, a vertical rod 203 is installed at the bottom of the top rod 1042, the vertical rod 203 corresponds to the top block 204, and a side plate 203 is installed on the side wall of the vertical rod 203 1, the side plate 2031 corresponds to the flap 202; the electric slider in the oscillating unloading unit moves to the filter plate at the specified position, at which time the side plate of the side wall will push the flap to flip, and when the side plate is completely moved to the top block, it is reset by the torsion spring, and at this time when the electric slider is reset, the flap can push the side plate to move, and then the entire filter plate starts to separate, and during the movement, the top block and the insertion rod slide back and forth inside the groove, pushing the side plate and the vertical rod to move up and down, and then the filter plate can shake up and down, thereby ensuring that during the separation process of the filter plate, the diaphragm inside the filter plate can shake, and then the filter cake pasted on the isolation can fall off, achieving the purpose of automatic cleaning, simple operation.

[0045] The toggle unloading unit 300 includes a pair of push rods 305 and a pair of first toggle plates 307, and the pair of push rods 305 and the pair of first toggle plates 307 are slidably arranged in the filter press chamber 1045; a push block 3051 is installed on the push rod 305, a turntable 304 is installed at the end of the push rod 305, a strip plate 303 is slidably arranged on the turntable 304, a pressure rod 302 is installed on the strip plate 303, the pressure rod 302 movably penetrates the side wall of the filter press plate 104, and an extrusion block 301 is installed at the end of the pressure rod 302. The guide strip 3011 installed on the side wall of the block 301 and the beam 102 is slidably connected with the inclined surface; the second toggle plate 3071 is slidably arranged on the side wall of the first toggle plate 307, and the second toggle plate 3071 is slidably connected with the inclined groove 3072 opened at the bottom of the filter press chamber 1045, and a sliding sleeve 3064 is installed at the end of the first toggle plate 307, and a swing arm 3063 is installed on the side wall of the sliding sleeve 3064, and a positioning block 306 is installed at the end of the swing arm 3063, and the positioning blocks 306 between adjacent filter press plates 104 correspond to each other. When the filter press plate moves and separates, the adjacent positioning blocks separate, and the positioning blocks can move upward at this time, and the swing arm drives the sliding sleeve to move toward the center, and the sliding sleeve will drive the first toggle plate to move toward the center, and at this time the second toggle plate on the side wall moves toward the center along the inclined groove, thereby changing the position of the diaphragm arch, so that the position of the arch on the diaphragm surface is in a constantly changing state, ensuring that the pasted filter cake cannot be well adsorbed on it, thereby achieving the purpose of discharging, and when the filter press plate moves upward at this time, the extrusion block is driven to move inward through the guide strip, and the extrusion block drives the pressure rod to move, and finally the turntable is driven to rotate through the strip plate, and the turntable drives the two push rods to rotate at the same time, constantly toggling the raised position of the diaphragm, changing the surface shape of the diaphragm, and further making the filter cake not be well adsorbed on the surface, thereby achieving the purpose of discharging.

[0046] like Figure 1 , Figure 2 and Figure 3 As shown, in a specific embodiment, a support leg 1011 is installed at the bottom of the support base 101, a base 1012 is installed at the bottom of the support leg 1011, an input pipe 1013 is installed on the support base 101, and a through pipe 1051 is installed on the filter press plate 104, and the through pipe 1051 and the input pipe 1013 are connected to each other. The raw liquid to be filtered is input into the inside of the plurality of pairs of filter press plates 104 through the input pipe 1013, so that the raw liquid can completely fill the chamber between the adjacent diaphragms 105.

[0047] like Figure 2 , Figure 3 and Figure 6As shown, further, a connecting block 1032 is installed at the center of the pressing plate 1031, the pressing plate 1031 covers the entire filter press plate 104, and reinforcing ribs 1033 are installed around the connecting block 1032. The other side of the reinforcing rib 1033 is on the pressing plate 1031, and the reinforcing rib 1033 is triangular, and the connecting block 1032 is connected to the output end of the hydraulic push rod 103. The structural strength of the connection is improved, and the pressure can be evenly distributed on the pressing plate 1031.

[0048] Embodiment 2:

[0049] The difference between the above embodiment and this embodiment is that: Figure 4 As shown, connecting brackets 1041 are installed on the side walls of the filter press plate 104, and a top rod 1042 is connected to the connecting bracket 1041. A guide slider 1043 is movably inserted on the top rod 1042 and the vertical rod 203. A guide slot 1044 is opened on the side wall of the crossbeam 102, and the guide slider 1043 is slidably set on the guide slot 1044. The top rod 1042 and the vertical rod 203 on the side wall of the filter press plate 104 can slide in the guide slider 1043, and the guide slider 1043 can slide in the positioned guide slot 1044.

[0050] like Figure 7 and Figure 8 As shown, in a specific embodiment, a collection box 106 is installed at the bottom of the filter press plate 104, a filter hole 1061 is opened on the side wall of the filter press chamber 1045, and the end of the filter hole 1061 is connected to the collection box 106. A discharge pipe 1062 is arranged on both sides of the collection box 106, and a valve is arranged on the discharge pipe 1062, and the discharge pipe 1062 is L-shaped. In the filter press operation, the filtered water can flow into the collection box 106 through the filter hole 1061, and can be transported out through the discharge pipe 1062 on the collection box 106.

[0051] like Figure 4 and Figure 5As shown, further, a slide rail 2012 is installed on the positioning plate 2011, the electric slider 201 is slidably set on the slide rail 2012, and the electric slider 201 is provided with a mounting groove 2021, the size of the mounting groove 2021 and the flap 202 are adapted, and the torsion spring 2022 is clamped on the side wall of the mounting groove 2021 and the rotation center of the flap 202. Start the electric slider 201 and let it slide on the positioning plate 2011 along the slide rail 2012. When the flap 202 on the electric slider 201 contacts the side plate 2031, the flap 202 will rotate and drive the torsion spring 2022 to twist. When the side plate 2031 moves to the right side of the flap 202, the side plate 2031 is reset under the action of the torsion spring 2022. At this time, the electric slider 201 is used for the reset operation. At this time, the flap cannot rotate in the opposite direction because it is installed in the mounting groove 2021, thereby pushing the side plate 2031 to move. The movement of the side plate 2031 can eventually drive the entire filter press plate 104 to move.

[0052] Embodiment 3:

[0053] The difference between the above embodiment and this embodiment is that: Figure 5 As shown, a positioning cover 205 is installed at the bottom of the electric slider 201, and the insertion rod 2041 movably penetrates the positioning cover 205. A partition 2051 is slidably arranged inside the positioning cover 205. The partition 2051 and the insertion rod 2041 are connected to each other. An extrusion spring 2052 is sleeved on the insertion rod 2041 located on the inner side of the positioning cover 205. One end of the extrusion spring 2052 is clamped on the partition 2051, and the other end of the extrusion spring 2052 is clamped on the positioning cover 205. A guide block 2042 is arranged at the bottom of the insertion rod 2041. The guide block 2042 at the end of the plug rod 2041 continuously moves on the groove 2043 and the plane of the positioning plate 2011, thereby continuously driving the plug rod 2041 to move up and down as a whole, and the position of the partition plate 2051 on the plug rod 2041 changes synchronously, compressing and stretching the extrusion spring 2052, and facilitating the movement of the plug rod 2041 through the extrusion spring 2052. After the plug rod 2041 moves, the top block 204 can be driven to move upward, and at this time, the vertical rod 203 is on the top block 204, and the vertical rod 203 can move up and down at this time, and the vertical rod 203 drives the top rod 1042 and the filter press plate 104 to move up and down, and the diaphragm 105 on the filter press plate 104 shakes synchronously, causing the diaphragm 105 to vibrate, allowing the filter cake remaining on its surface to fall off automatically, and completing the unloading operation.

[0054] like Figure 8 , Fig. 9 and Fig.10As shown, in a specific embodiment, a rotating shaft 3042 is installed at the rotating center of the rotating disk 304, and the rotating shaft 3042 is rotatably installed on the filter press chamber 1045. A sliding rod 3041 is installed at the eccentric position of the rotating disk 304, and a strip groove 3031 is opened on the strip plate 303, and the sliding rod 3041 is slidably set on the strip groove 3031. A baffle 3021 is installed at the connection between the pressure rod 302 and the strip plate 303, and a return spring 3022 is sleeved on the pressure rod 302, one end of the return spring 3022 is clamped on the baffle 3021, and the other end of the return spring 3022 is clamped on the side wall of the filter press plate 104. When the filter press plate 104 moves up and down, the extrusion block 301 on the side wall of the filter press plate 104 can slide along the guide strip 3011, and finally drive the extrusion block 301 to start moving continuously inward. Whenever the extrusion block 301 starts to move inward, the pressure rod 302 moves inward synchronously, and the position of the baffle 3021 on the pressure rod 302 changes synchronously. At this time, the reset spring 3022 can be lengthened to facilitate the reset operation later. The movement of the pressure rod 302 can push the strip plate 303 to move horizontally. The strip groove 3031 inside the strip plate 303 and the sliding rod 3041 on the turntable 304 are slidably connected, driving the turntable 304 to rotate around the rotation axis 3042 as a whole. The push rod 305 on the turntable 304 can rotate, and the positions of the push block 3051 on the push rod 305 and the diaphragm 105 change. The position of the pushed block 3051 on the diaphragm 105 changes, so that the shape of the surface of the diaphragm 105 changes, making it difficult for the filter cake to be adsorbed on the surface, thereby facilitating automatic cleaning of the filter cake.

[0055] like Figure 8 , Fig. 9 and Fig.10 As shown, further, a clamping plate 3061 is installed on the side wall of the positioning block 306, and a positioning spring 3062 is clamped in the clamping plate 3061 and the inner cavity of the filter press plate 104. The positioning spring 3062 is sleeved on the side wall of the positioning block 306, and the swing arm 3063 is in an inclined state. A limiting rod 3065 is slidingly arranged inside the sliding sleeve 3064, and both ends of the limiting rod 3065 are installed in the inner wall of the filter press cavity 1045. When the two filter press plates 104 are separated, the relative positioning blocks 306 are not in contact. At this time, the positioning blocks 306 are driven to move outward by the stretched positioning springs 3062. At this time, the swing arm 3063 at the bottom pulls the sleeve 3064 to slide on the limit rod 3065, and then the position of the first toggle plate 307 changes synchronously, and the positions of the first toggle plate 307 and the diaphragm 105 change, causing the shape of the diaphragm to change, making it difficult to adsorb the filter cake. The second toggle plate 3071 moves outward under the push of the first toggle plate 307, and the second toggle plate 3071 slides inward under the guidance of the inclined groove 3072, and can be moved to a position where the push rod 305 cannot move, further changing the position of the protrusion on the surface of the diaphragm 105, making it more convenient to perform discharge operations.

[0056] The implementation principle of a coal slime filter press that is convenient for cleaning residual filter cake on the diaphragm of this embodiment is as follows:

[0057] When the filter press operation is required, the operator first starts the hydraulic push rod 103, and the hydraulic push rod 103 drives the pressure plate 1031 to move. The pressure plate 1031 tightly fits several pairs of filter plates 104 together. Then the operator inputs the raw liquid that needs to be filtered into the several pairs of filter plates 104 through the input pipe 1013, so that the raw liquid can completely fill the chamber between the adjacent diaphragms 105. The filtering effect can be achieved through the pressure, and the filtered water can flow into the collection box 106 through the filter hole 1061, and can be transported to the outside through the discharge pipe 1062 on the collection box 106, and finally the filter press operation is completed. Then the operator closes the input pipe 1013, inputs the filling liquid into the chamber where the filter plate 104 and the diaphragm 105 are located, and the diaphragm 105 is bulged. The two adjacent diaphragms 105 are squeezed toward the center, and the filter cake in the center is squeezed for the second time to further complete the dehydration operation. At this time, the state of the diaphragm 105 is as follows: Fig.11 shown.

[0058] When the filter cake needs to be discharged, the operator starts the hydraulic push rod 103 to perform a reset operation, so that the limit of the filter press plate 104 is unlocked.

[0059] Then the operator starts the electric slider 201 and lets the electric slider 201 slide on the positioning plate 2011 along the slide rail 2012. When the flap 202 on the electric slider 201 contacts the side plate 2031, the flap 202 will rotate and drive the torsion spring 2022 to twist. When the side plate 2031 moves to the right side of the flap 202, the side plate 2031 is reset under the action of the torsion spring 2022. At this time, the electric slider 201 is used for the reset operation. At this time, the flap cannot rotate in the opposite direction because it is installed in the mounting groove 2021, and can push the side plate 2031 to move. The movement of the side plate 2031 can eventually drive the entire filter press plate 104 to move. The filter press chamber between the two diaphragms 105 on the filter press plate 104 opens, and the filter cake can fall automatically.

[0060] The guide block 2042 at the end of the plug rod 2041 continuously moves on the groove 2043 and the plane of the positioning plate 2011, thereby continuously driving the plug rod 2041 to move up and down as a whole, and the position of the partition plate 2051 on the plug rod 2041 changes synchronously, compressing and stretching the extrusion spring 2052, and facilitating the movement of the plug rod 2041 through the extrusion spring 2052. After the plug rod 2041 moves, the top block 204 can be driven to move upward, and at this time, the vertical rod 203 is on the top block 204, and the vertical rod 203 can move up and down at this time, and the vertical rod 203 drives the top rod 1042 and the filter press plate 104 to move up and down, and the diaphragm 105 on the filter press plate 104 shakes synchronously, causing the diaphragm 105 to vibrate, allowing the filter cake remaining on its surface to fall off automatically, and completing the unloading operation.

[0061] When the filter press plate 104 moves up and down, the extrusion block 301 on the side wall of the filter press plate 104 can slide along the guide strip 3011, and finally drive the extrusion block 301 to start moving continuously inward. Whenever the extrusion block 301 starts to move inward, the pressure rod 302 moves inward synchronously, and the position of the baffle 3021 on the pressure rod 302 changes synchronously. At this time, the reset spring 3022 can be lengthened to facilitate the reset operation later.

[0062] The movement of the pressure rod 302 can push the strip plate 303 to move horizontally. The strip groove 3031 inside the strip plate 303 and the sliding rod 3041 on the turntable 304 are slidably connected, driving the turntable 304 to rotate around the rotation axis 3042 as a whole. The push rod 305 on the turntable 304 can rotate, and the positions of the push block 3051 on the push rod 305 and the diaphragm 105 change. The position of the pushed block 3051 on the diaphragm 105 changes, so that the shape of the surface of the diaphragm 105 changes, making it difficult for the filter cake to be adsorbed on the surface, thereby facilitating automatic cleaning of the filter cake.

[0063] When the two filter press plates 104 are separated, the relative positioning blocks 306 are not in contact. At this time, the positioning blocks 306 are driven to move outward by the stretched positioning springs 3062. At this time, the swing arm 3063 at the bottom pulls the sleeve 3064 to slide on the limit rod 3065, and then the position of the first toggle plate 307 changes synchronously, and the positions of the first toggle plate 307 and the diaphragm 105 change, causing the shape of the diaphragm to change, making it difficult to adsorb filter cakes. The second toggle plate 3071 moves outward under the push of the first toggle plate 307, and the second toggle plate 3071 slides inward under the guidance of the inclined groove 3072, and can be moved to a position where the push rod 305 cannot move, further changing the position of the protrusion on the surface of the diaphragm 105, making it more convenient to perform discharge operations.

Claims

1. A coal sludge filter press convenient for cleaning residual filter cake on a diaphragm, comprising a filter press unit (100), an oscillating discharge unit (200) and a toggle discharge unit (300), characterized in that: The filter press unit (100) comprises a pair of support seats (101), a plurality of pairs of filter press plates (104) and a hydraulic push rod (103); a cross beam (102) is mounted on the pair of support seats (101); a plurality of pairs of filter press plates (104) are slidably arranged on the cross beam (102); the hydraulic push rod (103) is mounted on the support seat (101); a pressure plate (1031) is mounted on the output end of the hydraulic push rod (103); the end of the pressure plate (1031) is in contact with the filter press plate (104); a filter press cavity (1045) is provided inside the filter press plate (104); and a diaphragm (105) is arranged on the filter press cavity (1045); The oscillating unloading unit (200) comprises a positioning plate (2011) and an electric slider (201) sliding on the positioning plate (2011), the positioning plate (2011) being mounted on both sides of a support seat (101), a flap (202) being swingably arranged on the electric slider (201), a torsion spring (2022) being clamped on the flap (202), a top block (204) being plugged into the electric slider (201), and a bottom of the top block (204) being provided with An insert rod (2041), the bottom of the insert rod (2041) and the bottom of the positioning plate (2011) are slidably connected to a groove (2043) provided on the filter press plate, a top rod (1042) is installed on the side wall of the filter press plate (104), a vertical rod (203) is installed on the bottom of the top rod (1042), the vertical rod (203) and the top block (204) correspond to each other, a side plate (2031) is installed on the side wall of the vertical rod (203), and the side plate (2031) and the flap (202) correspond to each other; The toggle unloading unit (300) comprises a pair of push rods (305) and a pair of first toggle plates (307), and the pair of push rods (305) and the pair of first toggle plates (307) are slidably arranged in the filter press chamber (1045); A push block (3051) is installed on the push rod (305), a turntable (304) is installed at the end of the push rod (305), a strip plate (303) is slidably arranged on the turntable (304), a pressure rod (302) is installed on the strip plate (303), the pressure rod (302) movably penetrates the side wall of the filter press plate (104), an extrusion block (301) is installed at the end of the pressure rod (302), and the extrusion block (301) is slidably connected to the inclined surface of the guide strip (3011) installed on the side wall of the crossbeam (102); A second toggle plate (3071) is slidably arranged on the side wall of the first toggle plate (307), and the second toggle plate (3071) is slidably connected to an inclined groove (3072) provided at the bottom of the filter press chamber (1045). A sliding sleeve (3064) is installed at the end of the first toggle plate (307), and a swing arm (3063) is installed on the side wall of the sliding sleeve (3064), and a positioning block (306) is installed at the end of the swing arm (3063), and the positioning blocks (306) between adjacent filter press plates (104) correspond to each other.

2. A coal slime filter press for facilitating cleaning of residual filter cake on the diaphragm according to claim 1, characterized in that: A support leg (1011) is installed at the bottom of the support seat (101), a base (1012) is installed at the bottom of the support leg (1011), an input pipe (1013) is installed on the support seat (101), a through pipe (1051) is installed on the filter press plate (104), and the through pipe (1051) and the input pipe (1013) are connected to each other.

3. A coal slime filter press for facilitating cleaning of residual filter cake on the diaphragm according to claim 1, characterized in that: A connecting block (1032) is installed at the center of the pressing plate (1031), and the pressing plate (1031) covers the entire filter press plate (104). Reinforcing ribs (1033) are installed around the connecting block (1032), and the other side of the reinforcing rib (1033) is on the pressing plate (1031), and the reinforcing rib (1033) is triangular in shape. The connecting block (1032) is connected to the output end of the hydraulic push rod (103).

4. A coal slime filter press for facilitating cleaning of residual filter cake on the diaphragm according to claim 1, characterized in that: The side walls of both sides of the filter press plate (104) are provided with connecting brackets (1041), a top rod (1042) is connected to the connecting bracket (1041), a guide slider (1043) is movably connected and inserted on the top rod (1042) and the vertical rod (203), a guide slot (1044) is provided on the side wall of the crossbeam (102), and the guide slider (1043) is slidably arranged on the guide slot (1044).

5. The coal slime filter press for facilitating cleaning of residual filter cake on the diaphragm according to claim 1, characterized in that: A collecting box (106) is installed at the bottom of the filter press plate (104), and a filter hole (1061) is opened on the side wall of the filter press chamber (1045). The end of the filter hole (1061) is communicated with the collecting box (106). Discharge pipes (1062) are arranged on both sides of the collecting box (106), and a valve is arranged on the discharge pipe (1062), and the discharge pipe (1062) is L-shaped.

6. A coal slime filter press for facilitating cleaning of residual filter cake on the diaphragm according to claim 1, characterized in that: A slide rail (2012) is installed on the positioning plate (2011), the electric slider (201) is slidably arranged on the slide rail (2012), and a mounting groove (2021) is provided on the electric slider (201), the sizes of the mounting groove (2021) and the flap (202) are adapted, and the torsion spring (2022) is clamped on the side wall of the mounting groove (2021) and the rotation center of the flap (202).

7. A coal slime filter press for facilitating cleaning of residual filter cake on the diaphragm according to claim 1, characterized in that: A positioning cover (205) is installed at the bottom of the electric slider (201), the insertion rod (2041) movably penetrates the positioning cover (205), a partition (2051) is slidably arranged inside the positioning cover (205), the partition (2051) and the insertion rod (2041) are connected to each other, an extrusion spring (2052) is sleeved on the insertion rod (2041) located on the inner side of the positioning cover (205), one end of the extrusion spring (2052) is clamped on the partition (2051), and the other end of the extrusion spring (2052) is clamped on the positioning cover (205), and a guide block (2042) is arranged at the bottom of the insertion rod (2041).

8. The coal slime filter press for facilitating cleaning of residual filter cake on the diaphragm according to claim 1, characterized in that: A rotating shaft (3042) is installed at the rotation center of the rotating disk (304), and the rotating shaft (3042) is rotatably installed on the filter press chamber (1045). A sliding rod (3041) is installed at an eccentric position of the rotating disk (304), and a strip groove (3031) is opened on the strip plate (303), and the sliding rod (3041) is slidably set on the strip groove (3031).

9. A coal slime filter press for facilitating cleaning of residual filter cake on the diaphragm according to claim 1, characterized in that: A baffle (3021) is installed at the connection between the pressure rod (302) and the strip plate (303), and a return spring (3022) is sleeved on the pressure rod (302). One end of the return spring (3022) is clamped on the baffle (3021), and the other end of the return spring (3022) is clamped on the side wall of the filter press plate (104).

10. The coal slime filter press for facilitating cleaning of residual filter cake on the diaphragm according to claim 1, characterized in that: A clamping plate (3061) is installed on the side wall of the positioning block (306), and a positioning spring (3062) is clamped in the inner cavity of the clamping plate (3061) and the filter press plate (104). The positioning spring (3062) is sleeved on the side wall of the positioning block (306), and the swing arm (3063) is in an inclined state. A limiting rod (3065) is slidably arranged inside the sliding sleeve (3064), and both ends of the limiting rod (3065) are installed in the inner wall of the filter press cavity (1045).

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