A filter plate and method for easy cleaning

Abstract

The present invention discloses a filter plate and a method thereof which are easy to clean, and relates to the field of filter presses, including a plate frame, a discharge swinging member is arranged on the outer side of the plate frame, and a discharge detection member is installed on the drain pipe. The present invention arranges a discharge swinging member, and the operation of a motor causes a hexagonal transmission rod to drive a semi-bevel gear to rotate. When the semi-bevel gear drives the transmission bevel gear to rotate ninety degrees, the support plate moves toward the plate frame, so that the filter cloth has certain wrinkles. When the semi-bevel gear is separated from the transmission bevel gear, the bidirectional cam will be restored under the action of the elastic restoring force of the torsion spring, so that the connecting rod is quickly restored, so that the support plate quickly pulls the two ends of the filter cloth, and the filter cloth can be repeatedly shaken in this way to prevent the filter cloth from being attached to the rubber diaphragm, so that not only the removal effect of the filter residue on the filter cloth is improved, but also the cleaning effect of the high-pressure nozzle on the filter plate as a whole is enhanced.

Description

Technical Field

[0001] The invention relates to the field of filter presses, in particular to a filter plate which is easy to clean and a method thereof. Background Art

[0002] The plate and frame filter press consists of a group of filter chambers composed of alternately arranged filter plates and filter frames. The surface of the filter plates has grooves, and the protruding parts are used to support the filter cloth. The filter chamber is formed by the mutual squeezing of multiple filter plates. The feed pump pushes the suspension into the filter chamber to form filter residue on the filter cloth until the filter chamber is filled. The filtrate passes through the filter cloth and flows along the filter plate grooves to the corner channels of the plate frame and is discharged in a centralized manner. Subsequently, the multiple filter plates are separated and the filter residue is removed. In order to facilitate subsequent use, the filter plates equipped with filter cloth will be cleaned.

[0003] When cleaning the filter plate equipped with filter cloth, after the suspension is filtered, the mutual pressure between the filter plates will cause part of the filter cloth to fit with the filter plate. This will cause the aqueous solution to be unable to flow through the filter plate that fits with the filter cloth when cleaning the filter plate equipped with filter cloth, which will affect the cleaning effect. In addition, if black water or muddy water appears at the water nozzle during the filtration process, it means that the filter cloth on the filter plate is damaged. If it is not discovered in time, a large amount of muddy water will flow into the clean water tank, thereby affecting the use effect of the filter plate. Summary of the invention

[0004] The purpose of the present invention is to provide a filter plate that is easy to clean and a method thereof in order to solve the problem that the cleaning effect of the filter plate is poor and the aqueous solution discharged from the filter plate cannot be monitored.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a filter plate that is easy to clean, comprising a plate frame, rubber diaphragms are installed at both ends of the plate frame, a protrusion is arranged on the rubber diaphragm, a flow port is opened at one end of the plate frame and passes through the other end of the plate frame, ear plates are installed on both sides of the plate frame, a discharge swing piece is arranged on the outer side of the plate frame, the top and bottom of the plate frame are connected with positioning pins through the discharge swing piece, drain pipes located below the ear plates are installed on both sides of the plate frame, the drain pipes are detachably connected to the plate frame by bolts, a drainage port is opened on the plate frame and located on one side of the rubber diaphragm, and a drainage detection piece is installed on the drain pipe.

[0006] As a further solution of the present invention: the discharge swinging member includes a two-way cam rotatably connected to both sides of the plate frame through a rotating shaft, a torsion spring is clamped on the rotating shaft connecting the two-way cam and the plate frame through a slot, the two-way cam is located between the ear plate and the drain pipe, a guide rail is provided on the side of the two-way cam away from the plate frame, a slider is slidably connected to the inner side of the guide rail, a connecting block is installed on the slider, a connecting rod is installed on the top of the connecting block, a support plate is installed on the top of the connecting rod, a positioning pin is installed on the top of the support plate, and the bottom of the support plate is provided There is a first return spring connected to the top of the plate frame, a clamping plate located on the outside of the locating pin shaft is installed on the top of the support plate, a transmission bevel gear located on the inner side of the guide rail is installed on the end of the two-way cam away from the plate frame, and a support frame located on the outside of the two-way cam is installed on one side of the plate frame. A semi-bevel gear is rotatably connected to the support frame through a bearing, and the semi-bevel gear is meshed with the transmission bevel gear. A hexagonal socket is opened on the inner side of the semi-bevel gear, and a hexagonal transmission rod is inserted into the inner side of the hexagonal socket, and one end of the hexagonal transmission rod is connected to a motor connected to the filter press.

[0007] As a further solution of the present invention: only one quarter of the outer side of the semi-bevel gear is provided with latching teeth, and the diameter of the semi-bevel gear is equal to that of the transmission bevel gear.

[0008] As a further solution of the present invention: the distance from the protrusion of the bidirectional cam to the center of rotation of the bidirectional cam is less than half of the thickness of the plate frame.

[0009] As a further solution of the present invention: the clamping plate is connected to the supporting plate by a buckle, and a through hole matching with the positioning pin is formed on the clamping plate.

[0010] As a further solution of the present invention: the drainage detection component includes a filter plate installed inside the drain pipe, a connecting compartment is installed on the top of the drain pipe, an L-shaped connecting pipe is installed on the end of the drain pipe away from the plate frame, a sleeve located above the L-shaped connecting pipe is installed at the bottom of the connecting compartment, a guide rod extending to the bottom of the sleeve is inserted into the interior of the sleeve, a U-shaped frame located below the sleeve is installed at the bottom of the guide rod, a baffle located below the L-shaped connecting pipe is installed at the bottom end of the U-shaped frame, and a sealing member connected to the top of the L-shaped connecting pipe is provided on the inner side of the U-shaped frame. A second return spring is connected to the connection, a third contact piece is installed on the top of the guide rod, a second contact piece located above the third contact piece is installed on the inner wall of the connecting warehouse, blocking blocks are inserted on both sides of the connecting warehouse, one end of the blocking block is rotatably connected to a support rod located on the inner side of the connecting warehouse through a rotating shaft, a mounting plate is installed at one end of the support rod close to the second contact piece, the first contact piece is installed at one end of the mounting plate close to the second contact piece, and a third return spring connected to the inner wall of the connecting warehouse is installed at one end of the mounting plate away from the first contact piece, and a buzzer is installed on the top of the connecting warehouse.

[0011] As a further solution of the present invention: the first contact piece is electrically connected to an external power source through a wire, and the third contact piece is electrically connected to a buzzer through a wire.

[0012] As a further solution of the present invention: the bottom of the connecting chamber is provided with a through hole that fits with the top of the sleeve, and the sleeve is a vacuum cylindrical structure without a top.

[0013] As a further solution of the present invention: the diameter of the baffle plate is larger than the diameter of the bottom end of the L-shaped connecting pipe.

[0014] The present invention also discloses a method for conveniently cleaning a filter plate, which uses the filter plate conveniently cleaned, and comprises the following steps:

[0015] S1: First, multiple plate frames are installed side by side on the filter press through ear plates, and then the filter cloth is passed through the flow port, and the top and bottom of the filter cloth are connected to the positioning pin shaft through the mounting holes, so that the filter cloth is spread on both ends of the plate frame;

[0016] S2: When the filter plate is in use, the suspension will pass through the filter cloth and enter between the rubber diaphragm and the filter cloth. At this time, the suspension is filtered by the filter cloth. During this process, the water discharged from the drain pipe is detected by the drainage detection component to prevent the suspension from being discharged into the clean water due to damage to the filter cloth during the use of the filter plate. The suspension is then discharged through the drainage port and the drain pipe.

[0017] S3: After the suspension hydraulic filtration is completed, the adjacent plates and frames are separated. At this time, the filter cakes between the adjacent plates and frames will fall, and the discharge swinging piece is started. The filter cloth is shaken by the operation of the discharge swinging piece, and the rubber diaphragm is separated from the filter cloth;

[0018] S4: The filter cloth is rinsed with a high-pressure water gun. During this process, part of the aqueous solution sprayed by the high-pressure water gun will pass through the filter cloth and enter between the rubber diaphragm and the filter cloth, so that the water flow can rinse the surface of the rubber diaphragm.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. By setting a discharge swing piece, the hexagonal transmission rod drives the semi-bevel gear to rotate through the operation of the motor. When the semi-bevel gear drives the transmission bevel gear to rotate 90 degrees, the support plate moves toward the plate frame, so that the filter cloth has certain folds. When the semi-bevel gear is separated from the transmission bevel gear, the bidirectional cam will be restored under the elastic restoring force of the torsion spring, so that the connecting rod can be quickly restored, so that the support plate can quickly pull the two ends of the filter cloth. This repeated shaking of the filter cloth can prevent the filter cloth from fitting with the rubber diaphragm, which not only improves the removal effect of the filter residue on the filter cloth, but also enhances the cleaning effect of the high-pressure nozzle on the filter plate as a whole;

[0021] 2. By setting up a drainage detection component, the filter cloth on the filter plate is damaged. At this time, the aqueous solution discharged through the drain pipe is a suspension, so that the filter plate can filter the suspension. As the filter residue accumulates on the surface of the filter plate, the flow rate of the aqueous solution discharged from the L-shaped connecting pipe will decrease, so that the impact force on the baffle plate can be reduced, so that the baffle plate can be restored under the action of the elastic restoring force of the second reset spring, so that the baffle plate can block the bottom of the L-shaped connecting pipe, and the third contact piece contacts the second contact piece to operate the buzzer, thereby reminding the staff that the filter cloth at this location is damaged. This not only prevents the unfiltered suspension from being directly discharged into the clear water tank, but also serves as a reminder to the staff, providing convenience for the subsequent replacement of the filter cloth. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 It is a schematic diagram of the connection between the connecting rod and the supporting plate of the present invention;

[0024] Figure 3 For the present invention Figure 2 Enlarged view of point A in the middle;

[0025] Figure 4 It is a schematic diagram of the connection between the bidirectional cam and the semi-bevel gear of the present invention;

[0026] Figure 5 It is a schematic diagram of the connection between the bidirectional cam and the plate frame of the present invention;

[0027] Figure 6 It is a schematic diagram of the connection between the drainage pipe and the connection chamber of the present invention;

[0028] Figure 7 It is a schematic diagram of the connection between the baffle plate and the guide rod of the present invention;

[0029] Figure 8 This is a schematic diagram of the internal structure of the connection bin of the present invention;

[0030] Fig. 9 It is a schematic diagram of the plate-frame structure of the present invention.

[0031] In the figure: 1, plate frame; 2, rubber diaphragm; 3, convex block; 4, flow port; 5, drain port; 601, drain pipe; 602, connecting compartment; 603, buzzer; 604, hexagonal transmission rod; 605, motor; 606, ear plate; 607, connecting rod; 608, supporting plate; 609, clamping plate; 610, positioning pin; 611, first return spring; 612, support frame; 613, connecting block; 614, slider; 615, two-way cam; 616, guide Rail; 617, hexagonal socket; 618, semi-bevel gear; 619, transmission bevel gear; 620, torsion spring; 621, blocking block; 622, sleeve; 623, second return spring; 624, L-shaped connecting pipe; 625, blocking plate; 626, filter plate; 627, guide rod; 628, third return spring; 629, first contact piece; 630, second contact piece; 631, third contact piece; 632, U-shaped frame; 633, support rod; 634, mounting plate. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal connection of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. The following is an explanation of an embodiment of the present invention based on the overall structure of the present invention.

[0034] See also Figures 1 to 9In the embodiment of the present invention, a filter plate that is easy to clean includes a plate frame 1, and rubber diaphragms 2 are installed at both ends of the plate frame 1. The plate frame 1 can also be used Fig. 9 The structure is a prior art, wherein a convex block 3 is arranged on the rubber diaphragm 2, a flow port 4 penetrating to the other end of the plate frame 1 is opened at one end of the plate frame 1, ear plates 606 are installed on both sides of the plate frame 1, a discharge swing piece is arranged on the outer side of the plate frame 1, the top and bottom of the plate frame 1 are connected with a positioning pin shaft 610 through the discharge swing piece, drain pipes 601 located below the ear plates 606 are installed on both sides of the plate frame 1, the drain pipe 601 is detachably connected to the plate frame 1 by bolts, a drainage port 5 located on one side of the rubber diaphragm 2 is opened on the plate frame 1, and a drainage detection piece is installed on the drain pipe 601.

[0035] In this embodiment: first, multiple plate frames 1 are installed side by side on the filter press through the ear plates 606, then the filter cloth is passed through the flow port 4, and the top and bottom of the filter cloth are connected to the positioning pin 610 through the mounting holes, so that the filter cloth is spread on both ends of the plate frame 1. When the filter plate is in use, the suspension will pass through the filter cloth and enter between the rubber diaphragm 2 and the filter cloth. At this time, the suspension is filtered through the filter cloth. In this process, the water discharged from the drain pipe 601 is detected by the drainage detection part to prevent the suspension from being discharged into the clean water due to damage to the filter cloth during the use of the filter plate. Then, the suspension is discharged through the drainage port 5 and the drain pipe. 601 is discharged, and the adjacent plate frames 1 are separated after the suspension liquid filtration is completed. At this time, the filter cakes between the adjacent plate frames 1 will fall, and the discharge swinging piece is started. The filter cloth is shaken by the operation of the discharge swinging piece, and the rubber diaphragm 2 is separated from the filter cloth. The filter cloth is rinsed by a high-pressure water gun. During this process, part of the aqueous solution sprayed by the high-pressure water gun will pass through the filter cloth and enter between the rubber diaphragm 2 and the filter cloth, so that the water flow can rinse the surface of the rubber diaphragm 2. At the same time, the filter cloth is shaken to increase the falling efficiency of the filter residue on the surface of the filter cloth, further improving the overall cleaning effect of the filter plate.

[0036] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5The discharge swing member includes a two-way cam 615 which is rotatably connected to both sides of the plate frame 1 through a rotating shaft. A torsion spring 620 is clamped on the rotating shaft connecting the two-way cam 615 and the plate frame 1 through a slot. The two-way cam 615 is located between the ear plate 606 and the drain pipe 601. A guide rail 616 is provided on the side of the two-way cam 615 away from the plate frame 1. A slider 614 is slidably connected to the inner side of the guide rail 616. A connecting block 613 is installed on the slider 614. A connecting rod 607 is installed on the top of the connecting block 613. A support plate 608 is installed on the top of the connecting rod 607. A positioning pin shaft 610 is installed on the top of the support plate 608. The bottom of the support plate 608 is provided with a guide pin which is aligned with the top of the plate frame 1. A first return spring 611 is connected, a clamping plate 609 located on the outside of the positioning pin shaft 610 is installed on the top of the support plate 608, a transmission bevel gear 619 located on the inside of the guide rail 616 is installed on the end of the two-way cam 615 away from the plate frame 1, and a support frame 612 located on the outside of the two-way cam 615 is installed on one side of the plate frame 1. A semi-bevel gear 618 is rotatably connected to the support frame 612 through a bearing, and the semi-bevel gear 618 is meshed with the transmission bevel gear 619. A hexagonal socket 617 is provided on the inner side of the semi-bevel gear 618, and a hexagonal transmission rod 604 is inserted into the inner side of the hexagonal socket 617. One end of the hexagonal transmission rod 604 is connected to a motor 605 connected to the filter press.

[0037] In this embodiment, after the plate frame 1 is installed on the filter press through the ear plate 606, the hexagonal transmission rod 604 is passed through the hexagonal socket 617, and one end of the hexagonal socket 617 is connected to the motor 605 on the filter press. After the suspension liquid filtration is completed, the adjacent plate frames 1 are separated, and then the motor 605 is started. The operation of the motor 605 drives the hexagonal transmission rod 604 to rotate the semi-bevel gear 618. When the semi-bevel gear 618 is meshed with the transmission bevel gear 619, the semi-bevel gear 618 drives the transmission bevel gear 619 to rotate ninety degrees. In this process, the bidirectional cam 615 drives the connecting block 619 through the guide rail 616. 13 moves toward the rotation center of the two-way cam 615, so that the support plate 608 moves toward the plate frame 1, so that the filter cloth is wrinkled to a certain extent. When the semi-bevel gear 618 is separated from the transmission bevel gear 619, the two-way cam 615 will be restored under the elastic restoring force of the torsion spring 620, so that the connecting rod 607 is quickly restored, so that the support plate 608 quickly pulls the two ends of the filter cloth. This repeated shaking of the filter cloth can prevent the filter cloth from fitting with the rubber diaphragm 2, which not only improves the removal effect of the filter residue on the filter cloth, but also enhances the cleaning effect of the high-pressure nozzle on the filter plate as a whole.

[0038] Please refer to Figure 5 Only one quarter of the outer side of the semi-bevel gear 618 is provided with a latching tooth, and the diameter of the semi-bevel gear 618 is equal to that of the transmission bevel gear 619.

[0039] In this embodiment: by setting this structure, the transmission bevel gear 619 rotates ninety degrees when the semi-bevel gear 618 rotates one circle, so that the bidirectional cam 615 drives the connecting rod 607 to move up and down reciprocatingly.

[0040] Please refer to Figure 5 , the distance from the protrusion of the bidirectional cam 615 to the rotation center of the bidirectional cam 615 is less than half of the thickness of the plate frame 1.

[0041] In this embodiment: this structure is provided to prevent the bidirectional cam 615 from being obstructed by the bidirectional cam 615 on the adjacent plate frame 1 during the rotation process.

[0042] Please refer to Figure 1 The clamping plate 609 is connected to the supporting plate 608 by a buckle, and a through hole that matches the positioning pin shaft 610 is opened on the clamping plate 609.

[0043] In this embodiment, this structure is provided to limit the two ends of the filter cloth when the clamping plate 609 is connected to the supporting plate 608, so as to improve the stability of the filter cloth.

[0044] Please refer to Figure 1 , Figure 6 , Figure 7 , Figure 8 The drainage detection member includes a filter plate 626 installed inside the drain pipe 601, a connecting chamber 602 is installed on the top of the drain pipe 601, an L-shaped connecting pipe 624 is installed at the end of the drain pipe 601 away from the plate frame 1, a sleeve 622 located above the L-shaped connecting pipe 624 is installed at the bottom of the connecting chamber 602, a guide rod 627 extending to the bottom of the sleeve 622 is inserted inside the sleeve 622, a U-shaped frame 632 located below the sleeve 622 is installed at the bottom of the guide rod 627, a blocking plate 625 located below the L-shaped connecting pipe 624 is installed at the bottom end of the U-shaped frame 632, and a second return spring 622 connected to the top of the L-shaped connecting pipe 624 is arranged on the inner side of the U-shaped frame 632. 3. A third contact piece 631 is installed at the top of the guide rod 627, a second contact piece 630 located above the third contact piece 631 is installed on the inner wall of the connecting chamber 602, and blocking blocks 621 are inserted on both sides of the connecting chamber 602. One end of the blocking block 621 is rotatably connected to a support rod 633 located on the inner side of the connecting chamber 602 through a rotating shaft, a mounting plate 634 is installed at one end of the support rod 633 close to the second contact piece 630, a first contact piece 629 is installed at one end of the mounting plate 634 close to the second contact piece 630, a third return spring 628 connected to the inner wall of the connecting chamber 602 is installed at one end of the mounting plate 634 away from the first contact piece 629, and a buzzer 603 is installed on the top of the connecting chamber 602.

[0045] In this embodiment: when multiple plate frames 1 are closed, the blocking block 621 will be squeezed. At this time, the blocking block 621 will push the mounting plate 634 to move toward the second contact piece 630 through the support rod 633, so that the second contact piece 630 is fitted with the first contact piece 629. When filtering the suspension, the filtered clean water will be discharged through the drain pipe 601 and the L-shaped connecting pipe 624. At this time, the filter plate 626 cannot block the filtered water flow. At the same time, the blocking plate 625 is separated from the L-shaped connecting pipe 624 due to the impact of the aqueous solution discharged from the L-shaped connecting pipe 624. At the same time, the third contact piece 631 is separated from the second contact piece 630, so that the buzzer 603 is powered off and stops working. If the filter cloth on the filter plate is damaged, it is discharged through the drain pipe 601 at this time. The aqueous solution is the suspension, so the filter plate 626 can filter the suspension, and the accumulation of filter residue on the surface of the filter plate 626 will cause the flow rate of the aqueous solution discharged from the L-shaped connecting tube 624 to decrease, so that the impact force on the blocking plate 625 can be reduced, so that the blocking plate 625 can be restored under the elastic restoring force of the second reset spring 623, so that the blocking plate 625 can block the bottom of the L-shaped connecting tube 624, and at the same time, the third contact piece 631 contacts the second contact piece 630, so as to operate the buzzer 603, thereby reminding the staff that the filter cloth at that location is damaged, which not only prevents the unfiltered suspension from being directly discharged into the clean water bin, but also serves as a reminder to the staff, providing convenience for the subsequent replacement of the filter cloth.

[0046] Please refer to Figure 1 , Figure 8 The first contact piece 629 is electrically connected to the external power supply through a wire, and the third contact piece 631 is electrically connected to the buzzer 603 through a wire.

[0047] In this embodiment, by providing this structure, the buzzer 603 operates when the first contact piece 629 contacts the second contact piece 630 and the third contact piece 631 contacts the second contact piece 630 , thereby controlling the operation timing of the buzzer 603 .

[0048] Please refer to Figure 7 The bottom of the connecting chamber 602 is provided with a through hole that fits with the top of the sleeve 622, and the sleeve 622 is a vacuum cylindrical structure without a top.

[0049] In this embodiment: by providing this structure, a movable space is provided for the third contact piece 631 to pass through.

[0050] Please refer to Figure 7 The diameter of the blocking plate 625 is larger than the diameter of the bottom end of the L-shaped connecting pipe 624.

[0051] In this embodiment: by setting this structure, the aqueous solution discharged from the L-shaped connecting pipe 624 is sprayed on the blocking plate 625, so as to reduce the detection error.

[0052] In combination with the above-mentioned filter plate that is easy to clean, a method for cleaning the filter plate is provided below, which specifically includes the following steps:

[0053] S1: First, multiple plate frames 1 are installed side by side on the filter press through the ear plates 606, and then the filter cloth is passed through the flow port 4, and the top and bottom of the filter cloth are connected to the positioning pin shaft 610 through the mounting holes, so that the filter cloth is spread on both ends of the plate frame 1;

[0054] S2: After the plate frame 1 is mounted on the filter press through the ear plate 606, the hexagonal transmission rod 604 is passed through the hexagonal socket 617, and one end of the hexagonal socket 617 is connected to the motor 605 on the filter press;

[0055] S3: When the multiple plate frames 1 are closed, the blocking block 621 will be squeezed. At this time, the blocking block 621 will push the mounting plate 634 to move toward the second contact piece 630 through the support rod 633, so that the second contact piece 630 is fitted with the first contact piece 629. When filtering the suspension, the filtered clean water will be discharged through the drain pipe 601 and the L-shaped connecting pipe 624. At this time, the filter plate 626 cannot block the filtered water flow. At the same time, the blocking plate 625 is separated from the L-shaped connecting pipe 624 due to the impact of the aqueous solution discharged from the L-shaped connecting pipe 624. At the same time, the third contact piece 631 is separated from the second contact piece 630, so that the buzzer 603 is powered off and stops working;

[0056] S4: If the filter cloth on the filter plate is damaged, the aqueous solution discharged through the drain pipe 601 is a suspension, so the filter plate 626 can filter the suspension. As the filter residue on the surface of the filter plate 626 accumulates, the flow rate of the aqueous solution discharged from the L-shaped connecting pipe 624 will decrease, so that the impact force on the blocking plate 625 can be reduced, so that the blocking plate 625 can be restored under the elastic restoring force of the second return spring 623, so that the blocking plate 625 can block the bottom of the L-shaped connecting pipe 624, and the third contact piece 631 contacts the second contact piece 630, so as to operate the buzzer 603, thereby reminding the staff that the filter cloth at that location is damaged. This not only prevents the unfiltered suspension from being directly discharged into the clean water bin, but also serves as a reminder to the staff, providing convenience for the subsequent replacement of the filter cloth;

[0057] S5: After the suspension fluid filtration is completed, the adjacent plate frames 1 are separated, and then the motor 605 is started. The operation of the motor 605 causes the hexagonal transmission rod 604 to drive the semi-bevel gear 618 to rotate. When the semi-bevel gear 618 is engaged with the transmission bevel gear 619, the semi-bevel gear 618 drives the transmission bevel gear 619 to rotate ninety degrees. During this process, the bidirectional cam 615 uses the guide rail 616 to move the connecting block 613 toward the rotation center of the bidirectional cam 615, so that the support plate 608 moves toward the plate frame. 1 is moved to make the filter cloth wrinkle to a certain extent. When the semi-bevel gear 618 is separated from the transmission bevel gear 619, the bidirectional cam 615 will be restored under the elastic restoring force of the torsion spring 620, so that the connecting rod 607 is quickly restored, so that the supporting plate 608 can quickly pull the two ends of the filter cloth. This can be repeated to shake the filter cloth and prevent the filter cloth from fitting with the rubber diaphragm 2. This not only improves the removal effect of the filter residue on the filter cloth, but also enhances the cleaning effect of the high-pressure nozzle on the filter plate as a whole.

[0058] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A filter plate that is easy to clean, comprising a plate frame (1), characterized in that: Rubber diaphragms (2) are installed at both ends of the plate frame (1), and a convex block (3) is arranged on the rubber diaphragm (2). A flow opening (4) is opened at one end of the plate frame (1) and extends to the other end of the plate frame (1). Ear plates (606) are installed on both sides of the plate frame (1). A discharge swing member is arranged on the outer side of the plate frame (1). The top and bottom of the plate frame (1) are connected to positioning pins (610) through the discharge swing member. Drain pipes (601) located below the ear plates (606) are installed on both sides of the plate frame (1). The drain pipes (601) are detachably connected to the plate frame (1) through bolts. A liquid discharge port (5) is opened on the plate frame (1) and is located on one side of the rubber diaphragm (2). A liquid discharge detection member is installed on the drain pipe (601); The discharge swing member comprises a bidirectional cam (615) rotatably connected to both sides of the plate frame (1) via a rotating shaft, a torsion spring (620) is clamped on the rotating shaft connecting the bidirectional cam (615) and the plate frame (1) via a clamping groove, the bidirectional cam (615) is located between the ear plate (606) and the drain pipe (601), a guide rail (616) is provided on the side of the bidirectional cam (615) away from the plate frame (1), a slider (614) is slidably connected to the inner side of the guide rail (616), a connecting block (613) is installed on the slider (614), a connecting rod (607) is installed on the top of the connecting block (613), a support plate (608) is installed on the top of the connecting rod (607), a positioning pin (610) is installed on the top of the support plate (608), and a positioning pin (610) is provided on the bottom of the support plate (608) for connection with the plate frame (1). ) at the top of the support plate (608); a clamping plate (609) located on the outside of the positioning pin shaft (610) is installed on the top of the support plate (608); a transmission bevel gear (619) located on the inner side of the guide rail (616) is installed on the end of the two-way cam (615) away from the plate frame (1); a support frame (612) located on the outside of the two-way cam (615) is installed on one side of the plate frame (1); a semi-bevel gear (618) is rotatably connected to the support frame (612) through a bearing; the semi-bevel gear (618) is meshed with the transmission bevel gear (619); a hexagonal socket (617) is provided on the inner side of the hexagonal socket (617); a hexagonal transmission rod (604) is inserted into the inner side of the hexagonal socket (617); one end of the hexagonal transmission rod (604) is connected to a motor (605) connected to the filter press.

2. A filter plate that is easy to clean according to claim 1, characterized in that: Only one quarter of the outer side of the semi-bevel gear (618) is provided with latching teeth, and the diameter of the semi-bevel gear (618) and the transmission bevel gear (619) are equal.

3. The filter plate that is easy to clean according to claim 1, characterized in that: The distance from the protrusion of the bidirectional cam (615) to the center of rotation of the bidirectional cam (615) is less than half the thickness of the plate frame (1).

4. The filter plate that is easy to clean according to claim 1, characterized in that: The clamping plate (609) is connected to the supporting plate (608) via a buckle, and a through hole that fits with the positioning pin shaft (610) is provided on the clamping plate (609).

5. The filter plate that is easy to clean according to claim 1, characterized in that: The drainage detection component comprises a filter plate (626) installed inside a drainage pipe (601); a connection chamber (602) is installed on the top of the drainage pipe (601); an L-shaped connecting pipe (624) is installed on the end of the drainage pipe (601) away from the plate frame (1); a sleeve (622) located above the L-shaped connecting pipe (624) is installed at the bottom of the connection chamber (602); a guide rod (627) extending to the bottom of the sleeve (622) is inserted inside the sleeve (622); a U-shaped frame (632) located below the sleeve (622) is installed at the bottom of the guide rod (627); a blocking plate (625) located below the L-shaped connecting pipe (624) is installed at the bottom end of the U-shaped frame (632); a second return spring (623) connected to the top of the L-shaped connecting pipe (624) is arranged on the inner side of the U-shaped frame (632); ), a third contact piece (631) is installed at the top end of the guide rod (627), a second contact piece (630) located above the third contact piece (631) is installed on the inner wall of the connecting chamber (602), blocking blocks (621) are inserted on both sides of the connecting chamber (602), one end of the blocking block (621) is rotatably connected to a support rod (633) located inside the connecting chamber (602) through a rotating shaft, a mounting plate (634) is installed at one end of the support rod (633) close to the second contact piece (630), a first contact piece (629) is installed at one end of the mounting plate (634) close to the second contact piece (630), a third return spring (628) connected to the inner wall of the connecting chamber (602) is installed at one end of the mounting plate (634) away from the first contact piece (629), and a buzzer (603) is installed on the top of the connecting chamber (602).

6. The filter plate that is easy to clean according to claim 5, characterized in that: The first contact piece (629) is electrically connected to an external power source via a wire, and the third contact piece (631) is electrically connected to a buzzer (603) via a wire.

7. The filter plate that is easy to clean according to claim 5, characterized in that: The bottom of the connection chamber (602) is provided with a through hole that fits with the top of the sleeve (622), and the sleeve (622) is a vacuum cylindrical structure without a top.

8. The filter plate that is easy to clean according to claim 5, characterized in that: The diameter of the blocking plate (625) is larger than the diameter of the bottom end of the L-shaped connecting tube (624).

9. A method for cleaning a filter plate, characterized in that: A method for cleaning a filter plate according to any one of claims 1 to 8 comprises the following steps: S1: First, multiple plate frames (1) are installed side by side on the filter press through the ear plates (606), and then the filter cloth is passed through the flow opening (4), and the top and bottom of the filter cloth are connected to the positioning pin shaft (610) through the installation holes, so that the filter cloth is spread on both ends of the plate frame (1); S2: When the filter plate is in use, the suspension will pass through the filter cloth and enter between the rubber diaphragm (2) and the filter cloth. At this time, the suspension is filtered by the filter cloth. During this process, the water discharged from the drain pipe (601) is detected by the drainage detection component to prevent the suspension from being discharged into the clean water due to damage to the filter cloth during the use of the filter plate. The suspension is then discharged through the drainage port (5) and the drain pipe (601); S3: After the suspension hydraulic filtration is completed, the adjacent plate frames (1) are separated, and the filter cakes between the adjacent plate frames (1) fall off, and the discharge swing member is started. The filter cloth is vibrated by the operation of the discharge swing member, and the rubber diaphragm (2) is separated from the filter cloth; S4: The filter cloth is rinsed with a high-pressure water gun. During this process, part of the aqueous solution sprayed by the high-pressure water gun will pass through the filter cloth and enter between the rubber diaphragm (2) and the filter cloth, so that the water flow can rinse the surface of the rubber diaphragm (2).

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