Grouping plate-opening sludge filter press

Abstract

The invention discloses a grouped plate opening sludge filter press, and relates to the field of sludge and sewage treatment, the grouped plate opening sludge filter press comprises a rack and a filter pressing device arranged on the rack, the rack comprises a side beam, and an end rack, a movable rack, an extrusion end plate and an end rack are sequentially arranged from the head end to the tail end of the side beam; the filter pressing device comprises a plurality of filter pressing assemblies arranged between the extrusion end plate and the end rack at the tail end, and a middle push plate for dividing the filter pressing assemblies is arranged between the extrusion end plate and the end rack at the tail end; the extrusion end plate is connected with the end rack at the tail end through a connecting chain, and the middle push plate and the plurality of filter pressing assemblies are connected with the connecting chain; the power mechanism A is used for driving the extrusion end plate to slide along the length direction of the side beam; the power mechanism B is used for driving the movable rack and the middle push plate to move in the length direction of the side beams. Therefore, the problems of the existing filter press are solved, the plates are opened and closed twice in groups, the equipment length and the occupied area are reduced, and the production efficiency is improved.

Description

Technical Field

[0001] The present application relates to the field of sludge and sewage treatment, and in particular to a grouped open-plate sludge filter press. Background Art

[0002] At present, domestic filter presses generally use filter plate pullers to open and close the plates one by one. Because the number of opening and closing the plates is too many, the unloading time is long and the efficiency is low. In addition, due to the complex structure, the mechanical, electrical, and hydraulic parts work together repeatedly in the reciprocating opening of the plates, which not only has many faults, high costs, but also easily damages the filter plates, and often replaces accessories, which requires a lot of maintenance.

[0003] There are also technologies for one-time plate opening at home and abroad, but the one-time plate opening equipment is long, occupies a large area, is difficult to install on site, and the accuracy and strength are difficult to guarantee. The automation and efficiency of the plate opening and closing filter press are low, and the mechanical structure is complex. The one-time plate opening filter press equipment is long and occupies a large space. Due to the manufacturing accuracy and the length of the raw materials, it is impossible to manufacture too many chamber equipment. Summary of the invention

[0004] In order to solve the problems existing in the existing filter presses, the present application provides a group-opening sludge filter press, which reduces the overall length of the equipment, reduces the equipment length and floor space, and improves production efficiency compared to a one-time opening.

[0005] The present application provides a grouped open plate sludge filter press adopts the following technical solution.

[0006] A group open plate sludge filter press, comprising a frame and a filter press device arranged on the frame, the frame comprising a side beam, an end frame, a mobile frame, an extrusion end plate and an end frame are arranged in sequence from the head end to the tail end of the side beam, the filter press device comprises a plurality of filter press assemblies arranged between the extrusion end plate and the end frame at the tail end, and a middle push plate for dividing the plurality of filter press assemblies is arranged between the extrusion end plate and the end frame at the tail end;

[0007] The extrusion end plate is connected to the end frame at the rear end by a connecting chain, and the middle push plate and a plurality of filter press assemblies are connected to the connecting chain;

[0008] The mobile frame is provided with a power mechanism A, and the power mechanism A is used to drive the extrusion end plate to slide along the length direction of the side beam;

[0009] The frame is provided with a power mechanism B, and the power mechanism B is used to drive the movable frame and the middle push plate to move along the length direction of the side beam.

[0010] By adopting the above technical scheme, through the setting of the middle push plate, several filter press assemblies are divided into two groups. Through the setting of the power mechanism A, the extrusion end plate can be driven to slide along the length direction of the side beam, so that the several filter press assemblies can be squeezed and closed together. Through the setting of the power mechanism B, the mobile frame and the middle push plate can be driven to slide along the length direction of the side beam. When the mobile frame is driven to slide toward the end frame at the head end, the setting of the connecting chain is cooperated to realize the opening of a group of several filter press assemblies of the end frame close to the head end. When the middle push plate is driven to slide toward the end frame at the head end, the setting of the connecting chain is cooperated to realize the opening of a group of several filter press assemblies of the end frame close to the tail end, thereby realizing the grouped opening of the filter press assemblies. The design of opening the plates in groups does not require them to be opened at the same time, that is, the length required for opening the plates is reduced, so that the overall length of the frame can be shorter, and more filter press components can be set within a limited length range, that is, more sludge can be filtered at one time, thereby ensuring the sludge processing capacity while reducing the overall length of the equipment, reducing the floor space, and facilitating transportation.

[0011] Optionally, the filter press assembly includes a plate frame, which is connected to a connecting chain, a filter plate is arranged on the plate frame, the plate frame is slidably arranged on the side beam along the length direction of the side beam, and a filter cloth is arranged on one side of the filter plate.

[0012] By adopting the above technical solution, the plate frame is slidably arranged on the side beam. Under the push of the extrusion end plate, the plate frames in several filter press assemblies can slide, so that the filter plates are squeezed against each other, and the water squeezed out of the sludge seeps through the filter cloth, thereby realizing pressure filtration.

[0013] Optionally, the filter press device further comprises a filter cloth driving assembly, and the filter cloth driving assembly is used to drive the filter cloth to move;

[0014] The filter cloth drive assembly includes a filter cloth drive shaft arranged at the top and bottom of the plate frame, filter cloth drive sprockets are arranged on the filter cloth drive shaft near both ends, the filter cloth and two filter cloth drive chains are connected end to end, the two filter cloth drive chains cooperate with two filter cloth drive sprockets, and a power mechanism C is arranged on the end frame at the head end and the end frame at the tail end, the power mechanism C on the end frame at the head end is used to drive the filter cloth drive shaft between the extrusion end plate and the end frame at the tail end to rotate, and the power mechanism C on the end frame at the tail end is used to drive the filter cloth drive shaft between the middle push plate and the end frame at the tail end to rotate.

[0015] By adopting the above technical solution and setting the filter cloth drive assembly, the filter cloth drive shaft can be rotated under the drive of the power mechanism C, thereby driving the filter cloth to move, which is beneficial to the rapid falling of the filter cake or residue formed after filtration.

[0016] Optionally, the power mechanism C includes a motor reducer arranged on the end frame, the motor reducer output shaft is connected to the commutator input shaft through a coupling, the commutator output shaft is connected to the spline shaft through a universal joint, a filter cloth gear box is arranged on the plate frame, and the filter cloth gear box is provided with a filter cloth driving gear and a filter cloth driven gear that mesh with each other, the spline shaft is spline-matched with the filter cloth driving gear, the filter cloth driven gear is coaxially fixed with the filter cloth transmission shaft, and the end support of the spline shaft is arranged on the side beam.

[0017] By adopting the above technical solution, a motor reducer is used to drive the spline shaft to rotate, and finally the filter cloth transmission shaft is driven to rotate through the transmission of the filter cloth gear box, thereby realizing the control of the filter cloth.

[0018] Optionally, the filter cloth gearbox further includes a gearbox body, the filter cloth driving gear and the filter cloth driven gear are both helical gears, and the axial directions of the filter cloth driving gear and the filter cloth driven gear are distributed at ninety degrees, and the filter cloth driving gear is arranged in the gearbox body through a spherical bearing.

[0019] By adopting the above technical solution, the filter cloth driving gear and the filter cloth driven gear cooperate to realize the change of the transmission route direction. The filter cloth driving gear is arranged in the gear box through a joint bearing. Through the arrangement of the joint bearing, the filter cloth driving gear has a certain floating amplitude, thereby allowing a certain degree of shaking of the filter press assembly. In addition, there is a certain mechanical error, which is equivalent to a certain flexibility compensation, realizing force release and preventing jamming during the transmission process.

[0020] Optionally, the filter cloth drive assembly also includes a detection module, which includes a detection shaft, an encoder and a rotary travel switch. The motor reducer output shaft drives the detection shaft to rotate through a chain drive, and the two ends of the detection shaft are respectively connected to the encoder rotating shaft and the rotary travel switch rotating shaft through a coupling. The encoder is used to detect the position of the filter cloth by detecting the rotation of the detection shaft, and upload the position information to the host computer to realize real-time detection of the filter cloth position. The rotary travel switch is used to control the upper and lower limits of the filter cloth stroke by controlling the rotation stroke of the detection shaft.

[0021] By adopting the above technical solution and setting the detection module, when the motor reducer drives the filter cloth to move, the encoder and the rotary travel switch are also driven to rotate. The setting of the encoder can obtain the filter cloth position by calculation, thereby realizing the detection of the filter cloth position. The setting of the rotary travel switch, i.e., a travel switch, controls the upper and lower limit travel positions of the filter cloth, and also has a limit protection function to prevent the filter cloth from excessive movement.

[0022] Optionally, the filter press device also includes a filter cloth cleaning assembly, which is used to clean the filter cloth; the filter cloth cleaning assembly includes a cleaning nozzle arranged at the bottom of the plate frame, and the cleaning nozzle is provided with a plurality of nozzles on the side facing the filter cloth, and the cleaning nozzle is connected to a cleaning main pipe arranged on the side beam through a cleaning hose.

[0023] By adopting the above technical solution and setting the filter cloth cleaning assembly, each filter cloth can be cleaned by spraying water through the nozzle on the cleaning nozzle to ensure clean mud discharge.

[0024] Optionally, the power mechanism A includes a hydraulic cylinder, and both sides of the mobile frame are supported on side beams through support wheels, the support wheel surface on one side is a plane, and the support wheel surface on the other side is a V-shaped surface.

[0025] By adopting the above technical scheme, the thrust generated by the hydraulic cylinder is large, which can produce greater extrusion pressure on the sludge and achieve better filtration effect. Through the setting of the supporting wheels, the mobile frame can be slidably set on the side beams. The wheel surface of the supporting wheel is flat, which has better support. The wheel surface of the supporting wheel is a V-shaped surface, which cooperates with the side beams and has a certain limiting and guiding effect.

[0026] Optionally, the power mechanism B includes a cylinder, and the cylinder includes a head end cylinder and a tail end cylinder, the two ends of the head end cylinder are respectively connected to the mobile frame and the middle push plate, and the two ends of the tail end cylinder are respectively connected to the middle push plate and the end frame of the tail end;

[0027] A roller assembly is arranged on the side beam, and the roller assembly is used to support the oil cylinder from the bottom. The roller assembly includes a roller, a lever, a disc spring tube, a disc spring, an adjusting rod and a roller shell. The roller is arranged at one end of the lever and is used to support the oil cylinder. The lever is hinged on the roller shell, and the other end of the lever is hinged to the disc spring tube hinge seat. The other end of the disc spring tube hinge seat is provided with a disc spring tube, and the other end of the disc spring tube is provided with an adjusting rod hole. One end of the adjusting rod passes through the adjusting rod hole and is inserted into the disc spring tube, and a plurality of disc springs are arranged on the adjusting rod inserted into the disc spring tube, one end of the plurality of disc springs abuts against the abutting portion of one end of the adjusting rod, and the other end of the plurality of disc springs abuts against the other end of the disc spring tube. The other end of the adjusting rod passes through the adjusting seat on the roller shell, and the other end of the adjusting rod is threadedly matched with an adjusting nut.

[0028] By adopting the above technical solution, the spacing between the moving frame and the middle push plate can be controlled individually by setting the head end cylinder and the tail end cylinder, and the spacing between the middle push plate and the end frame of the tail end can also be controlled individually, so as to realize the group opening control of several filter press assemblies. Because the cylinder will bend downward under the action of gravity, when the cylinder bends downward, the bottom roller can support the cylinder. When the roller sinks, the disc spring is squeezed by the lever setting and the lever principle. The disc spring has a certain compressibility and can provide a spring force to support the cylinder. And by setting the nut, the disc spring can be pre-tightened to adjust the size of the support force, so as to ensure the support of the cylinder and prevent the cylinder from being severely bent, damaging components or even causing safety accidents.

[0029] Optionally, a locking device is provided on the mobile frame, and the locking device includes a locking stop block, a locking cylinder, an opening plate locking plate and a closing plate locking plate;

[0030] The locking stop block is arranged on the side beam;

[0031] The open plate locking plate is hingedly arranged on one end of the mobile frame close to the extrusion end plate, the closed plate locking plate is hingedly arranged on one end of the mobile frame away from the extrusion end plate, and the hinge axes of the open plate locking plate and the closed plate locking plate are coaxially fixedly arranged, and the locking cylinder is arranged on the mobile frame to drive the open plate locking plate and the closed plate locking plate to swing;

[0032] When closing the plates, the locking cylinder drives the closing locking plate to swing and abut against the rear end of the locking stop block; when opening the plates, the locking cylinder drives the opening locking plate to swing and abut against the rear end of the locking stop block.

[0033] By adopting the above technical scheme and setting the locking device, the movable frame can be locked when opening or closing the plates to prevent the movable frame from moving. For example, when opening the plates, a plurality of filter press assemblies are separated from each other and the open plate state can be maintained. For example, when closing the plates, after one closing is completed, the position of the movable frame is maintained so that when the plates are closed for the second time, the stroke of the closing plates is shorter. When the power mechanism B performs the second closing, the thrust stroke providing the thrust is short, which is beneficial to reducing the overall formation length when the plates are closed.

[0034] In summary, this application at least includes the following beneficial effects:

[0035] 1. The present application divides a plurality of filter press assemblies into two groups by setting a middle push plate. By setting a power mechanism A, the extrusion end plate can be driven to slide along the length direction of the side beam, thereby realizing mutual extrusion and clamping of the plurality of filter press assemblies. By setting a power mechanism B, the mobile frame and the middle push plate can be driven to slide along the length direction of the side beam. When the mobile frame is driven to slide toward the end frame at the head end, the setting of the connecting chain can be coordinated to realize opening of a group of filter press assemblies of the end frame near the head end. When the middle push plate is driven to slide toward the end frame at the head end, the setting of the connecting chain can be coordinated to realize opening of a group of filter press assemblies of the end frame near the tail end, thereby realizing grouped opening of the filter press assemblies. The design of opening the plates in groups does not require them to be opened at the same time, that is, the length required for opening the plates is reduced, so that the overall length of the frame can be shorter, and more filter press components can be set within a limited length range, that is, more sludge can be filtered at one time, thereby ensuring the sludge processing capacity while reducing the overall length of the equipment, reducing the floor space, and facilitating the transportation of the overall equipment.

[0036] 2. The cooperation of the filter cloth driving gear and the filter cloth driven gear of the present application realizes the change of the direction of the transmission route. The filter cloth driving gear is arranged in the gear box through a joint bearing. Through the arrangement of the joint bearing, the filter cloth driving gear has a certain floating amplitude, which allows the filter press assembly to have a certain degree of shaking. In addition, there is a certain mechanical error, which is equivalent to having a certain flexibility compensation, realizing force release and preventing jamming during the transmission process.

[0037] 3. This application sets up a detection module. When the motor reducer drives the filter cloth to move, it also drives the encoder and the rotary travel switch to rotate. The setting of the encoder can obtain the filter cloth position by calculation to detect the filter cloth position. The setting of the rotary travel switch, that is, a travel switch, controls the upper and lower limit travel positions of the filter cloth, and also has a limit protection function to prevent the filter cloth from excessive movement.

[0038] 4. The roller assembly in the present application can support the oil cylinder from the bottom. Since the oil cylinder will bend downward under the action of gravity, the roller at the bottom can support the oil cylinder when the oil cylinder bends downward. When the roller sinks, the disc spring is squeezed by the setting of the lever and the lever principle. The disc spring has a certain compressibility and can provide a spring force to support the oil cylinder. The disc spring can be pre-tightened by the setting of the nut, thereby adjusting the size of the supporting force to ensure the support for the oil cylinder and prevent the oil cylinder from being severely bent, damaging components, or even causing safety accidents.

[0039] 5. The present application can lock the movable frame when opening or closing the plates through the setting of the locking device to prevent the movable frame from moving. For example, when opening the plates, a number of filter press assemblies are separated from each other and the open state can be maintained. For example, when closing the plates, after the first closing is completed, the position of the movable frame is maintained, so that when the plates are closed for the second time, the stroke of the closing plates is shorter. When the power mechanism B performs the second closing, the thrust stroke providing the thrust is short, which is beneficial to reducing the overall formation length when the plates are closed. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0041] Figure 1 The present invention is a schematic diagram of the structure of a grouped open plate sludge filter press.

[0042] Figure 2 yes Figure 1 Schematic diagram of the enlarged structure of local A in the middle.

[0043] Figure 3 It is a schematic structural diagram of a grouped open plate sludge filter press from another perspective (with some filter press components removed).

[0044] Figure 4 The present invention is a schematic diagram of the structure of a grouped open plate sludge filter press viewed from above.

[0045] Figure 5 The present invention is a schematic diagram of the main structure of a grouped open plate sludge filter press.

[0046] Figure 6 It is a schematic diagram of the left view of the structure of a grouped open plate sludge filter press.

[0047] Figure 7 It is a roller assembly.

[0048] Figure 8 yes Figure 7 Schematic diagram of the cross-sectional structure along the section line AA.

[0049] Fig. 9 It is a schematic diagram of the structure of power mechanism C.

[0050] Fig.10 This is a schematic structural diagram of the power mechanism C from another perspective.

[0051] Fig.11 This is another structural diagram of the power mechanism C from another perspective.

[0052] Fig.12 It is a schematic diagram of the cross-sectional structure of the filter cloth gearbox.

[0053] Fig.13 It is a schematic diagram of the mobile rack structure.

[0054] Fig.14 This is a structural diagram of the mobile rack from another perspective.

[0055] Description of the accompanying drawings: 1. Frame; 101. Side beam; 102. End frame; 103. Mobile frame; 104. Extrusion end plate; 105. Middle push plate; 106. Support wheel; 107. Hydraulic cylinder; 2. Filter press assembly; 201. Plate frame; 202. Filter cloth; 203. Connecting chain; 204. Head end oil cylinder; 205. Tail end oil cylinder; 206. Cylinder hinge ear; 207. Roller assembly; 2071. Roller; 2072. Lever; 2073. Disc spring cylinder; 2074. Disc spring; 2075. Adjusting rod; 2076. Adjusting seat; 2077. Roller shell; 2078. Disc spring cylinder hinge seat; 2079. Adjusting nut; 3. Filter cloth driving assembly; 301. Plate frame connecting plate; 302. Filter cloth transmission shaft; 303, filter cloth drive sprocket; 304, filter cloth drive chain; 305, power mechanism C; 3051, motor reducer; 3052, commutator; 3053, spline shaft; 3054, spline shaft bracket; 3055, gear box; 3056, filter cloth driving gear; 3057, filter cloth driven gear; 3058, spherical bearing; 306, detection module; 3061, detection shaft; 3062, encoder; 3063, rotary travel switch; 3064, spring coupling; 4, filter cloth cleaning assembly; 401, cleaning nozzle; 402, cleaning hose; 403, cleaning main pipe; 5, locking device; 501, locking stop block; 502, locking cylinder; 503, opening plate locking plate; 504, closing plate locking plate. DETAILED DESCRIPTION

[0056] 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.

[0057] The following is combined with Figures 1 to 14 This application is described in further detail.

[0058] The embodiment of the present application discloses a grouped open plate sludge filter press.

[0059] Reference Figures 1 to 14A group open plate sludge filter press comprises a frame 1 and a filter press device arranged on the frame 1.

[0060] The frame 1 includes side beams 101 on both sides, and end frames 102 are fixedly arranged at the head end and the tail end of the side beam 101. A movable frame 103, an extruded end plate 104 and a middle push plate 105 are sequentially arranged from the head end to the tail end of the side beam 101. The movable frame 103, the extruded end plate 104 and the middle push plate 105 are located between the two side beams 101 and can be movably arranged along the length direction of the side beam 101.

[0061] Support wheels 106 are provided on both sides of the mobile frame 103. The mobile frame 103 is supported on the side beam 101 by two support wheels 106, and the rolling friction is smaller. The wheel surface of the support wheel 106 on one side is a plane, and the wheel surface of the support wheel 106 on the other side is a V-shaped surface. Through the setting of the support wheels 106, the mobile frame 103 can be slidably set on the side beam 101. The wheel surface of the support wheel 106 on one side is a plane, which has better support performance. The wheel surface of the support wheel 106 on the other side is a V-shaped surface. The V-shaped surface cooperates with the side beam 101 and has a certain limit guiding effect. An integrated hydraulic system is provided on the mobile frame 103, including a hydraulic control valve group, which controls the hydraulic actuator on the group open plate sludge filter press.

[0062] The two sides of the extrusion end plate 104 are slidably matched with the side beam 101. A power mechanism A is arranged on the mobile frame 103. The power mechanism A includes a hydraulic cylinder 107. The power mechanism A is used to drive the extrusion end plate 104 to slide along the length direction of the side beam 101. The thrust generated by the hydraulic cylinder 107 is large, which can produce a greater extrusion force on the sludge, and the extrusion force is stable, and the filtration effect is better.

[0063] Both sides of the middle push plate 105 are slidably matched with the side beams 101 .

[0064] The filter press device comprises a filter press assembly 2 .

[0065] There are several filter press assemblies 2, which are arranged between the extrusion end plate 104 and the end frame 102 at the tail end, and are divided into two groups of filter press assemblies 2 at the head end and the tail end by the middle push plate 105.

[0066] The filter press assembly 2 includes a plate frame 201, on which a filter plate is arranged. The plate frame 201 is slidably arranged on the side beam 101 along the length direction of the side beam 101, and a filter cloth 202 is arranged on one side of the filter plate. The plate frame 201 is slidably arranged on the side beam 101, and under the push of the extrusion end plate 104, the plate frames 201 in the filter press assemblies 2 can slide, so that the filter plates are squeezed against each other, and the water squeezed out of the sludge seeps through the filter cloth 202, thereby achieving filter pressing.

[0067] The extrusion end plate 104 is connected to the end frame 102 at the rear end via a connecting chain 203 . The connecting chain 203 may be a steel chain. The middle push plate 105 and a plurality of filter press assemblies 2 are connected to the connecting chain 203 .

[0068] The frame 1 is provided with a power mechanism B, which is used to drive the mobile frame 103 and the middle push plate 105 to move along the length direction of the side beam 101. The power mechanism B includes a cylinder, and the cylinder includes a head end cylinder 204 and a tail end cylinder 205. Cylinder hinge ears 206 are protrudingly provided on both sides of the mobile frame 103, the middle push plate 105 and the end frame 102 at the tail end. The two ends of the head end cylinder 204 are respectively hinged to the cylinder hinge ears 206 connected to the mobile frame 103 and the middle push plate 105, and the two ends of the tail end cylinder 205 are respectively hinged to the cylinder hinge ears 206 on the middle push plate 105 and the end frame 102 at the tail end. By setting the front end cylinder 204 and the rear end cylinder 205, the distance between the movable frame 103 and the middle push plate 105 can be controlled individually, and then a group of filter press assemblies 2 at the front end can be pulled apart from each other through the connecting chain 203. The distance between the middle push plate 105 and the rear end frame 102 can also be controlled individually, and then a group of filter press assemblies 2 at the rear end can be pulled apart from each other through the connecting chain 203, thereby realizing the grouped opening control of two groups of filter press assemblies 2.

[0069] A displacement sensor is provided on the oil cylinder to control the synchronous operation of the two oil cylinders on both sides to ensure the smooth opening and closing of the plate.

[0070] In actual use, due to the long stroke and small diameter of the oil cylinder, the oil cylinder will bend under the action of gravity, especially when the oil cylinder is in an extended state, the lower and upper bending angles are large and the bending angles are very obvious. In order to overcome the bending of the oil cylinder and prevent the bending angle from being too large, the grouped open plate sludge filter press of the present application is also provided with a roller assembly 207.

[0071] A roller assembly 207 is provided at the bottom of each oil cylinder. The roller assembly 207 is used to support the oil cylinder from the bottom. The roller assembly 207 includes a roller 2071, a lever 2072, a disc spring tube 2073, a disc spring 2074, an adjustment rod 2075, an adjustment seat 2076 and a roller shell 2077. The roller 2071 is rotatably provided at one end of the lever 2072. The roller surface of the roller 2071 is made of rubber material with a relatively soft texture to avoid abrasion to the oil cylinder and is used to support the oil cylinder. The lever 2072 is hinged on the roller shell 2077. The other end of the lever 2072 is hinged to the disc spring tube articulated seat 2078. The other end of the disc spring tube articulated seat 2078 is provided with a disc spring tube 2073. The other end of the disc spring tube 2073 is provided with an adjustment rod hole. One end of the adjustment rod 2075 passes through the adjustment rod hole. The rod is inserted into the disc spring tube 2073 after passing through the rod hole, and a plurality of disc springs 2074 are arranged on the adjusting rod 2075 inserted into the disc spring tube 2073, one end of the plurality of disc springs 2074 abuts against the abutting part of one end of the adjusting rod 2075, the other end of the plurality of disc springs 2074 abuts against the other end of the disc spring tube 2073, the other end of the adjusting rod 2075 passes through the adjusting seat 2076 on the roller shell 2077, and the other end of the adjusting rod 2075 is threadedly matched with an adjusting nut 2079. Since the oil cylinder will bend downward under the action of gravity, when the oil cylinder bends downward, the bottom roller 2071 can support the oil cylinder. When the roller 2071 sinks, the lever 2072 is set and the disc spring 2074 is squeezed by utilizing the principle of the lever 2072. The disc spring 2074 has a certain compressibility and can provide a spring force to support the oil cylinder. By rotating the nut, the adjusting rod 2075 can move axially, thereby compressing or loosening the disc spring 2074 to achieve pre-tightening adjustment of the disc spring 2074, thereby changing the pre-tightening force of the disc spring 2074, and achieving the adjustment of the supporting force, thereby ensuring the support for the oil cylinder and preventing the oil cylinder from being severely bent, damaging components, or even causing safety accidents.

[0072] The filter press device further comprises a filter cloth driving assembly 3, and the filter cloth driving assembly 3 is used for driving the filter cloth 202 to move.

[0073] The filter cloth driving assembly 3 includes a plate frame connecting plate 301, a filter cloth transmission shaft 302 and a power mechanism C305. The plate frame connecting plates 301 are fixed to both the top and bottom sides of the plate frame 201 by bolts. A filter cloth transmission shaft 302 is arranged between the two plate frame connecting plates 301 at the top and bottom. Both ends of the filter cloth transmission shaft 302 are rotatably arranged on the two plate frame connecting plates 301 on both sides. Filter cloth transmission sprockets 303 are arranged on the filter cloth transmission shaft 302 near both ends. The filter cloth 202 and two filter cloth transmission chains 304 are connected end to end, and the two filter cloth transmission chains 304 cooperate with the two filter cloth transmission sprockets 303.

[0074] The end frame 102 at the head end and the end frame 102 at the tail end are both provided with a power mechanism C305. The power mechanism C305 on the end frame 102 at the head end is used to drive the filter cloth transmission shaft 302 between the extrusion end plate 104 and the end frame 102 at the tail end to rotate, and the power mechanism C305 on the end frame 102 at the tail end is used to drive the filter cloth transmission shaft 302 between the middle push plate 105 and the end frame 102 at the tail end to rotate. Through the setting of the filter cloth drive assembly 3, the filter cloth transmission shaft 302 is driven by the power mechanism C305 to realize the rotation of the filter cloth transmission shaft 302, thereby driving the filter cloth 202 to move, which is conducive to the rapid drop of the filter press mud cake or residue formed after the filter press.

[0075] The power mechanism C305 includes a motor reducer 3051, a commutator 3052, a spline shaft 3053, a filter cloth gearbox and a spline shaft bracket 3054. The motor reducer 3051 is arranged on the end frame 102. The motor reducer 3051 is a double output shaft type on both sides. The output shafts on both sides of the motor reducer 3051 are connected to the input shaft of the L-shaped right-angle commutator 3052 through a coupling. The output shaft of the L-shaped right-angle commutator 3052 is connected to the spline shaft 3053 through a universal joint. The spline shaft 3053 is arranged along the length direction of the side beam 101. A filter cloth gearbox is arranged on a plate frame connecting plate 301 on one side of the top of the plate frame 201, and the filter cloth gearboxes on two adjacent plate frames 201 are not on the same side. The filter cloth gearbox is provided with a filter cloth driving gear 3056 and a filter cloth driven gear 3057 meshing with each other, the spline shaft 3053 is spline-matched with the filter cloth driving gear 3056, the filter cloth driven gear 3057 is coaxially fixedly arranged with the filter cloth transmission shaft 302, the end rotation support of the spline shaft 3053 is arranged on the spline shaft bracket 3054, and the spline shaft bracket 3054 is fixedly arranged on the side beam 101. The motor reducer 3051 is used to drive the spline shaft 3053 to rotate, and finally the filter cloth transmission shaft 302 is driven to rotate through the transmission of the filter cloth gearbox, thereby realizing the control of the filter cloth 202.

[0076] The filter cloth gearbox also includes a gearbox body 3055, a filter cloth driving gear 3056 and a filter cloth driven gear 3057 are both helical gears, and the axial directions of the filter cloth driving gear 3056 and the filter cloth driven gear 3057 are distributed at 90 degrees, and the filter cloth driving gear 3056 is arranged in the gearbox body 3055 through a joint bearing 3058. The cooperation of the filter cloth driving gear 3056 and the filter cloth driven gear 3057 realizes the change of the transmission route direction, and the filter cloth driving gear 3056 is arranged in the gearbox body 3055 through a joint bearing 3058. Through the setting of the joint bearing 3058, the filter cloth driving gear 3056 has a certain floating amplitude, thereby allowing the filter press assembly 2 to have a certain degree of shaking, and the machine has a certain error, which is equivalent to having a certain flexibility compensation, realizing force release, and preventing jamming during the transmission process.

[0077] The filter cloth drive assembly 3 also includes a detection module 306, which includes a detection shaft 3061, an encoder 3062 and a rotation travel switch 3063. The detection shaft 3061 is rotatably set on the detection seat, and the detection seat is fixed on the end frame 102. The output shaft of the motor reducer 3051 drives the detection shaft 3061 to rotate through a chain drive. The two ends of the detection shaft 3061 are respectively connected to the rotating shaft of the encoder 3062 and the rotating shaft of the rotation travel switch 3063 through a spring coupling 3064. The encoder 3062 is used to detect the position of the filter cloth 202 by detecting the rotation of the detection shaft 3061, and upload the position information to the upper computer to realize real-time detection of the position of the filter cloth 202. The rotation travel switch 3063 is used to control the upper and lower limits of the travel of the filter cloth 202 by controlling the rotation travel of the detection shaft 3061. Through the setting of the detection module 306, when the motor reducer 3051 drives the filter cloth 202 to move, it also drives the encoder 3062 and the rotary travel switch 3063 to rotate. The setting of the encoder 3062 can obtain the position of the filter cloth 202 by calculation, thereby realizing the detection of the position of the filter cloth 202. The setting of the rotary travel switch 3063, i.e., a travel switch, controls the upper and lower limit travel positions of the filter cloth 202, and also has a limit protection function to prevent the filter cloth 202 from excessive movement.

[0078] The filter press device also includes a filter cloth cleaning assembly 4, which is used to clean the filter cloth 202. The filter cloth cleaning assembly 4 includes a cleaning nozzle 401 arranged at the bottom of the plate frame 201, and a plurality of nozzles are arranged on the side of the cleaning nozzle 401 facing the filter cloth 202. The cleaning nozzle 401 is connected to a cleaning main pipe 403 through a cleaning hose 402, and the cleaning main pipe 403 is fixed on the side beam 101. Through the arrangement of the filter cloth cleaning assembly 4, an external water source is connected to the cleaning main pipe 403, and the filter cloth 202 in each filter press assembly 2 can be sprayed and cleaned through the nozzle on the corresponding cleaning nozzle 401 to ensure clean mud discharge.

[0079] The movable frame 103 is provided with a locking device 5 , which includes a locking stop block 501 , a locking cylinder 502 , an opening locking plate 503 and a closing locking plate 504 .

[0080] There are two locking stop blocks 501, which are fixed on the inner sides of the two side beams 101 respectively; the top end of the opening plate locking plate 503 is hingedly set on the mobile frame 103 at one end close to the extrusion end plate 104, and there are two opening plate locking plates 503 symmetrically distributed on the mobile frame 103; the top end of the closing plate locking plate 504 is hingedly set on the mobile frame 103 at one end away from the extrusion end plate 104, and there are two closing plate locking plates 504 symmetrically on the mobile frame 103, and the hinge axes of the opening plate locking plate 503 and the closing plate locking plate 504 are coaxially fixed, and the top end of the locking cylinder 502 is hingedly set on the mobile frame 103 at one end away from the extrusion end plate 104, and there are two locking cylinders 502 symmetrically distributed on the mobile frame 103, and the two locking cylinders 502 simultaneously drive the two closing plate locking plates 504 to swing, and also drive the two opening plate locking plates 503 to swing.

[0081] When the mobile frame 103 moves to the position of the frame 1 far from the head end, the locking cylinder 502 drives the closing plate locking plate 504 to swing and abut against the rear end of the locking stop block 501; when the mobile frame 103 moves to the end frame 102 position close to the head end, the locking cylinder 502 drives the opening plate locking plate 503 to swing and abut against the front end of the locking stop block 501. Through the setting of the locking device 5, the mobile frame 103 can be locked when opening or closing the plate to prevent the mobile frame 103 from moving. For example, when opening the plate, that is, a plurality of filter press assemblies 2 are separated from each other, the opening state can be maintained. For example, when closing the plate, after the first closing is completed, the position of the mobile frame 103 is maintained, so that when closing the plate for the second time, the stroke of the closing plate is shorter, and the thrust stroke of the power mechanism B when performing the second closing is short, which is conducive to reducing the overall length of the closing plate.

[0082] The present application divides a plurality of filter press assemblies 2 into two groups through the setting of the middle push plate 105. Through the setting of the power mechanism A, the extrusion end plate 104 can be driven to slide along the length direction of the side beam 101, thereby realizing the mutual extrusion and clamping of the plurality of filter press assemblies 2. Through the setting of the power mechanism B, the mobile frame 103 and the middle push plate 105 can be driven to slide along the length direction of the side beam 101. When the mobile frame 103 is driven to slide toward the end frame 102 at the head end, the setting of the connecting chain 203 is cooperated to realize the opening of a group of filter press assemblies 2 near the end frame 102 at the head end. When the middle push plate 105 is driven to slide toward the end frame 102 at the head end, the setting of the connecting chain 203 is cooperated to realize the opening of a group of filter press assemblies 2 near the end frame 102 at the tail end, thereby realizing the grouped opening of the filter press assemblies 2. The design of opening the plates in groups does not require the plates to be opened at the same time, that is, the length required for opening the plates is reduced, so that the overall length of the frame 1 can be shorter, and more filter press assemblies 2 can be arranged within a limited length range, that is, more sludge can be filtered at one time, thereby ensuring the sludge processing capacity while reducing the overall length of the equipment, reducing the floor space, and facilitating transportation.

[0083] How this application works:

[0084] Closing operation: the head end cylinder 204 contracts, driving the mobile frame 103 to move toward the middle push plate 105, and then squeezing the end plate 104 to push a group of filter press assemblies 2 at the head end to close the plate in the direction of the middle push plate 105. After the closing of a group of filter press assemblies 2 at the head end is completed, the tail end cylinder 205 contracts, pulling the middle push plate 105 to move toward the end frame 102 at the tail end, and then the middle push plate 105 pushes a group of filter press assemblies 2 at the tail end to close the plate in the direction of the end frame 102 at the tail end. Both the head end and the tail end groups of filter press assemblies 2 have completed closing the plate, realizing one-time assembly and subassembly. When the tail end cylinder 205 contracts, it will also pull the mobile frame 103, squeeze the end plate 104 and a group of filter press assemblies 2 at the head end to move toward the end frame 102 at the tail end at the same time. After the first assembly of the panels is completed, the mobile frame 103 moves to the position of the frame 1 far away from the head end, the locking device 5 on the mobile frame 103 operates, the locking cylinder 502 extends, and the locking plate 504 is pushed against the rear end of the locking stop block 501 to achieve the locking of the panels. After the panels are locked, the power mechanism A, that is, the hydraulic cylinder 107, pushes the extrusion end plate 104 to move toward the end frame 102 near the tail end to achieve the second assembly of the panels. The thrust generated by the hydraulic cylinder 107 is large. After the pressure is squeezed to meet the sealing conditions of the filter plate, the hydraulic system maintains the pressure until the dehydration is completed.

[0085] Opening operation: After dehydration is completed, the power mechanism A, i.e., the hydraulic cylinder 107, contracts, pulling the extrusion end plate 104 to move toward the end frame 102 near the head end, and the extrusion force of the secondary clamping plate between the filter press components 2 is removed, realizing a single opening of the plate. The locking cylinder 502 on the mobile frame 103 contracts, pulling the clamping plate locking plate 504 to disengage from the rear end of the locking stop block 501, and the locking device 5 is unlocked. The tail end cylinder 205 extends, pushing the middle push plate 105 to move toward the end frame 102 at the head end, and the middle push plate 105 and the connecting chain 203 pull a group of filter press components 2 at the tail end to separate from each other, i.e., the filter plates are opened, and the plates are fully opened, realizing a secondary opening of a group of filter press components 2 at the tail end. When the middle push plate 105 moves toward the end frame 102 at the head end, a group of filter press assemblies 2, mobile frame 103 and extrusion end plate 104 at the head end also move at the same time. After a group of filter press assemblies 2 at the tail end are opened, the locking cylinder 502 on the mobile frame 103 extends, pushing the closing plate locking plate 504 to swing, and at the same time the opening plate locking plate 503 swings, and the opening plate locking plate 503 abuts against the rear end of the locking stop block 501, and the locking device 5 realizes the opening plate locking. The opening plate locking can limit the moving distance of the mobile frame 103 toward the end frame 102 at the head end, preventing the mobile frame 103 from moving excessively, or even abutting against the end frame 102 at the head end, thereby damaging the equipment. The power mechanism C305 on the end frame 102 at the tail end is running, driving the filter cloth transmission shaft 302 between the middle push plate 105 and the end frame 102 at the tail end to rotate, so that the filter cloth 202 moves up and down to complete the mud unloading of a group of filter plates at the tail end, and the mud cake is transported by the bottom conveyor. The filter cloth 202 moves up and down again to complete the cleaning of the filter cloth 202, and complete the secondary opening of a group of filter press components 2 at the tail end. After the group of filter press components 2 at the tail end completes the mud unloading, the head end oil cylinder 204 extends, so that the distance between the mobile frame 103 and the middle push plate 105 becomes larger, that is, the distance between the squeeze end plate 104 and the middle push plate 105 becomes larger, and the group of filter press components 2 at the head end are separated from each other, that is, the filter plates are opened, and the secondary opening of a group of filter press components 2 at the head end is realized. After the plates are opened, the power mechanism C305 on the end frame 102 at the head end is operated, driving the filter cloth transmission shaft 302 between the middle push plate 105 and the end frame 102 at the head end to rotate, so that the filter cloth 202 moves up and down to complete the mud unloading of a group of filter plates at the head end, and the mud cake is transported by the bottom conveyor. The filter cloth 202 moves up and down again to complete the cleaning of the filter cloth 202, and the second opening of a group of filter press components 2 at the head end is completed. In summary, the second group opening of the plates is completed.

[0086] In the description of the present invention, it should be understood that the terms "head end", "tail end", "both sides", "one end", "the other end", "one side", "the other side", "both ends", "bottom", "top", "inside", "top end" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying 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 a limitation on the present invention. In the description of the present invention, unless otherwise specified and limited, it should be noted that the term "connection" should be understood in a broad sense, for example, it can be a mechanical connection or an electrical connection, or it can be the internal connection of two elements, it can be a direct connection, or it can be an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0087] The above are only preferred embodiments of the invention and are not intended to limit the invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the invention should be included in the protection scope of the invention.

Claims

1. A grouped open plate sludge filter press, characterized in that: The invention comprises a frame (1) and a filter press device arranged on the frame (1), wherein the frame (1) comprises a side beam (101), and an end frame (102), a movable frame (103), an extrusion end plate (104) and an end frame (102) are arranged in sequence from the head end to the tail end of the side beam (101); the filter press device comprises a plurality of filter press assemblies (2) arranged between the extrusion end plate (104) and the end frame (102) at the tail end, and a middle push plate (105) is arranged between the extrusion end plate (104) and the end frame (102) at the tail end, for dividing the plurality of filter press assemblies (2); The extrusion end plate (104) is connected to the end frame (102) at the rear end via a connection chain (203), and the middle push plate (105) and a plurality of filter press assemblies (2) are connected to the connection chain (203); The movable frame (103) is provided with a power mechanism A, and the power mechanism A is used to drive the extrusion end plate (104) to slide along the length direction of the side beam (101); The frame (1) is provided with a power mechanism B, and the power mechanism B is used to drive the movable frame (103) and the middle push plate (105) to move along the length direction of the side beam (101).

2. A grouped open plate sludge filter press according to claim 1, characterized in that: The filter press assembly (2) comprises a plate frame (201), the plate frame (201) being connected to a connecting chain (203), a filter plate being arranged on the plate frame (201), the plate frame (201) being slidably arranged on the side beam (101) along the length direction of the side beam (101), and a filter cloth (202) being arranged on one side of the filter plate.

3. A grouped open plate sludge filter press according to claim 2, characterized in that: The filter press device further comprises a filter cloth driving assembly (3), wherein the filter cloth driving assembly (3) is used to drive the filter cloth (202) to move; The filter cloth drive assembly (3) comprises a filter cloth transmission shaft (302) arranged at the top and bottom of the plate frame (201), filter cloth transmission sprockets (303) are arranged near both ends of the filter cloth transmission shaft (302), the filter cloth (202) and two filter cloth transmission chains (304) are connected end to end, the two filter cloth transmission chains (304) cooperate with the two filter cloth transmission sprockets (303), the end frame (102) at the head end and the end frame (103) at the tail end are connected to each other. The end frames (102) are each provided with a power mechanism C (305). The power mechanism C (305) on the head end frame (102) is used to drive the filter cloth transmission shaft (302) between the extrusion end plate (104) and the tail end frame (102) to rotate, and the power mechanism C (305) on the tail end frame (102) is used to drive the filter cloth transmission shaft (302) between the middle push plate (105) and the tail end frame (102) to rotate.

4. A grouped open plate sludge filter press according to claim 3, characterized in that: The power mechanism C (305) comprises a motor reducer (3051) arranged on the end frame (102); the output shaft of the motor reducer (3051) is connected to the input shaft of the commutator (3052) through a coupling; the output shaft of the commutator (3052) is connected to the spline shaft (3053) through a universal joint; a filter cloth gear box is arranged on the plate frame (201); a filter cloth driving gear (3056) and a filter cloth driven gear (3057) meshing with each other are arranged in the filter cloth gear box; the spline shaft (3053) is spline-matched with the filter cloth driving gear (3056); the filter cloth driven gear (3057) is coaxially fixedly arranged with the filter cloth transmission shaft (302); and the end support of the spline shaft (3053) is arranged on the side beam (101).

5. A grouped open plate sludge filter press according to claim 4, characterized in that: The filter cloth gearbox further comprises a gearbox body (3055), the filter cloth driving gear (3056) and the filter cloth driven gear (3057) are both helical gears, and the axial directions of the filter cloth driving gear (3056) and the filter cloth driven gear (3057) are distributed at ninety degrees, and the filter cloth driving gear (3056) is arranged in the gearbox body (3055) via a spherical bearing (3058).

6. A grouped open plate sludge filter press according to claim 4, characterized in that: The filter cloth drive assembly (3) further comprises a detection module (306), wherein the detection module (306) comprises a detection shaft (3061), an encoder (3062) and a rotational travel switch (3063); the output shaft of the motor reducer (3051) drives the detection shaft (3061) to rotate via a chain drive; two ends of the detection shaft (3061) are respectively connected to the rotation shaft of the encoder (3062) and the rotation shaft of the rotational travel switch (3063) via a coupling; the encoder (3062) is used to detect the position of the filter cloth (202) by detecting the rotation of the detection shaft (3061), and to upload the position information to a host computer, thereby realizing real-time detection of the position of the filter cloth (202); and the rotational travel switch (3063) is used to control the upper limit and lower limit of the travel of the filter cloth (202) by controlling the rotational travel of the detection shaft (3061).

7. The grouped open plate sludge filter press according to claim 2, characterized in that: The filter press device further comprises a filter cloth cleaning assembly (4), the filter cloth cleaning assembly (4) being used for cleaning the filter cloth (202); the filter cloth cleaning assembly (4) comprises a cleaning nozzle (401) arranged at the bottom of the plate frame (201), a plurality of nozzles being arranged on the side of the cleaning nozzle (401) facing the filter cloth (202), and the cleaning nozzle (401) being connected to a cleaning main pipe (403) arranged on the side beam (101) via a cleaning hose (402).

8. The grouped open plate sludge filter press according to claim 1, characterized in that: The power mechanism A comprises a hydraulic cylinder (107), and both sides of the mobile frame (103) are supported on the side beams (101) through support wheels (106), the wheel surface of the support wheel (106) on one side is a flat surface, and the wheel surface of the support wheel (106) on the other side is a V-shaped surface.

9. The grouped open plate sludge filter press according to claim 1, characterized in that: The power mechanism B comprises an oil cylinder, and the oil cylinder comprises a head end oil cylinder (204) and a tail end oil cylinder (205), the two ends of the head end oil cylinder (204) are respectively connected to the movable frame (103) and the middle push plate (105), and the two ends of the tail end oil cylinder (205) are respectively connected to the middle push plate (105) and the tail end frame (102); A roller assembly (207) is arranged on the side beam (101), and the roller assembly (207) is used to support the oil cylinder from the bottom. The roller assembly (207) comprises a roller (2071), a lever (2072), a disc spring tube (2073), a disc spring (2074), an adjusting rod (2075) and a roller shell (2077). The roller (2071) is arranged at one end of the lever (2072) and is used to support the oil cylinder. The lever (2072) is hinged on the roller shell (2077), and the other end of the lever (2072) is hinged to the disc spring tube articulated seat (2078). The disc spring tube (2073) is arranged at the other end of the disc spring tube articulated seat (2078). ), an adjusting rod hole is provided at the other end of the disc spring tube (2073), one end of the adjusting rod (2075) passes through the adjusting rod hole and is inserted into the disc spring tube (2073), and a plurality of disc springs (2074) are arranged on the adjusting rod (2075) inserted into the disc spring tube (2073), one end of the plurality of disc springs (2074) abuts against the abutting portion of one end of the adjusting rod (2075), and the other end of the plurality of disc springs (2074) abuts against the other end of the disc spring tube (2073), the other end of the adjusting rod (2075) passes through the adjusting seat (2076) on the roller shell (2077), and the other end of the adjusting rod (2075) is threadedly matched with an adjusting nut (2079).

10. The grouped open plate sludge filter press according to claim 1, characterized in that: The movable frame (103) is provided with a locking device (5), and the locking device (5) comprises a locking stop block (501), a locking oil cylinder (502), an opening plate locking plate (503) and a closing plate locking plate (504); The locking stop block (501) is arranged on the side beam (101); The open plate locking plate (503) is hingedly arranged on one end of the mobile frame (103) close to the extrusion end plate (104), and the closed plate locking plate (504) is hingedly arranged on one end of the mobile frame (103) away from the extrusion end plate (104), and the hinge axes of the open plate locking plate (503) and the closed plate locking plate (504) are coaxially fixedly arranged, and the locking cylinder (502) is arranged on the mobile frame (103) to drive the open plate locking plate (503) and the closed plate locking plate (504) to swing; When the plates are closed, the locking oil cylinder (502) drives the closing plate locking plate (504) to swing and abut against the rear end of the locking stop block (501); when the plates are opened, the locking oil cylinder (502) drives the opening plate locking plate (503) to swing and abut against the rear end of the locking stop block (501).

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