Sludge treatment equipment for sewage treatment

Abstract

The invention relates to the technical field of sewage treatment, and discloses sludge treatment equipment for sewage treatment, which comprises a pressing assembly, a filter pressing assembly is arranged on the pressing assembly, a filter assembly is fixedly mounted at the front end of the pressing assembly, a separation assembly is fixedly mounted on the outer side of the pressing assembly, and the pressing assembly comprises a rear stand column. Front stand columns are symmetrically distributed on the front sides of the rear stand columns, a rear installing plate is fixedly installed at the upper ends of the rear stand columns, a front installing plate is fixedly installed at the upper ends of the front stand columns, a press machine is fixedly installed on the outer side face of the rear installing plate, and a driving shaft of the press machine penetrates through the rear installing plate to be fixedly connected with a pressing plate. The four corners of the front loading plate are fixedly connected with liquid drainage pipes in a sleeving mode, the center of the front loading plate is fixedly connected with a grouting pipe in a sleeving mode, the tail end of a pipeline of the grouting pipe is fixedly connected with a slurry pump, and the equipment has the secondary shaking-off effect on part of adhered mud pieces and can conduct secondary filtration on filtered water.

Description

Technical Field

[0001] The present invention relates to the technical field of sewage treatment, and more specifically to a sludge treatment device for sewage treatment. Background Art

[0002] After concentration and digestion, the sludge still has a moisture content of about 95%-97%, and its volume is still large. Sludge dehydration can further remove the interstitial water and capillary water in the sludge and reduce its volume. After dehydration, the sludge moisture content can be reduced to 70%-80%, and its volume is 1 / 10-1 / 4 of the original volume, which is conducive to subsequent transportation and treatment. Plate and frame filter presses are still widely used in sewage treatment because they have the advantages of large filtration driving force, high solid content of filter cake, clear filtrate, high solid recovery rate, and low consumption of conditioning drugs. However, the plate and frame filter presses under the existing technology still have the following shortcomings in actual use; First, when treating sewage, the plate and frame filter press under the prior art will first inject mud into the space between the plates and frames. Under the action of high pressure, the mud between the plates and frames will be dehydrated for the first time, and the water will be discharged from the water outlet opened in the plates and frames. Then, high-pressure gas will be introduced into the plates and frames to expand the adjacent membranes between the plates and frames, thereby squeezing the mud between the plates and frames. After being squeezed, the mud will be further dehydrated and form a filter cake between the plates and frames. Then, the adjacent plates and frames will be separated in sequence, so that the filter cake produced by the filtration between the plates and frames will fall off. However, in actual conditions, when the filter cake falls off, some mud flakes will still adhere to the surface of the membrane, thereby affecting the subsequent filtration effect of the membrane on the mud. The plate and frame filter press under the prior art does not have the function of secondary treatment of some mud flakes adhering to the surface of the membrane. Secondly, when the plate and frame filter press under the prior art treats sewage, when the mud is injected between the plates and frames, the mud between the plates and frames will be dehydrated for the first time under the action of high pressure, and the filtrate produced at this time will carry some fine mud impurities and be discharged from the plates and frames, but the plate and frame filter press under the prior art does not have the function of further filtering the filtrate; Finally, when separating adjacent plates and frames, the plate and frame filter press in the prior art needs to move the adjacent plates and frames in sequence so that the filter cakes between the plates and frames can fall off in sequence. However, the plate and frame filter press in the prior art does not have a separation drive device to conveniently separate the adjacent plates and frames. Therefore, in order to solve the above problems, it is necessary to provide a sludge treatment equipment for sewage treatment. Summary of the invention

[0003] In order to overcome the above-mentioned defects of the prior art, the present invention provides a sludge treatment device for sewage treatment to solve the problems existing in the above-mentioned background technology.

[0004] The present invention provides the following technical solution: a sludge treatment device for sewage treatment, comprising a pressing assembly, a filter press assembly is provided on the pressing assembly, a filter assembly is fixedly installed at the front end of the pressing assembly, and a separation assembly is fixedly installed on the outside of the pressing assembly; The clamping assembly includes a rear column, a front column is symmetrically distributed on the front side of the rear column, a rear mounting plate is fixedly installed on the upper end of the rear column, a front mounting plate is fixedly installed on the upper end of the front column, a press is fixedly installed on the outer side of the rear mounting plate, a driving shaft of the press passes through the rear mounting plate and is fixedly connected to a pressing plate, side rail plates are symmetrically installed between the two sides of the rear mounting plate and the front mounting plate, drainage pipes are fixedly sleeved at the four corners of the front mounting plate, a grouting pipe is fixedly sleeved at the center of the front mounting plate, a mud pump is fixedly connected to the pipe end of the grouting pipe, a mud pool is fixedly installed on the outer side of the front column, the mud pump is located inside the mud pool, and a collecting box is fixedly installed between the bottoms of the rear column and the front column.

[0005] Furthermore, the filter press assembly includes a plate and frame member, which is placed in sequence between the pressure plate and the front plate, and filtrate holes are opened at the four corners of the plate and frame member, and liquid guide grooves are opened on the filtrate holes, and air injection holes are opened on the bottom sides of the plate and frame member, and pressure membranes are installed on both sides of the plate and frame member, and a central tube is fixedly sleeved at the center of the pressure membrane, and the pressure membrane is folded inward to form a filter chamber, and the liquid guide groove is connected to the filter chamber of the pressure membrane, and side sleeve plates are fixedly installed at both ends of the plate and frame member, and the side sleeve plates are movably sleeved with the side rail plates at both ends.

[0006] Furthermore, a mounting plate is fixedly installed at the bottom end of the rear column, an air pump is fixedly installed on the mounting plate, pipe support plates are fixedly installed on the outer sides of the rear column and the front column, air pipes are fixedly sleeved between the pipe support plates, a connecting pipe is connected between the pipe of the air pipe and the air pump, and a hose is connected between the pipe of the air pipe and the air injection hole in turn.

[0007] Furthermore, a vortex extension channel is installed inside the plate and frame components, and the two sides of the vortex extension channel are respectively connected to the inner side surfaces of the pressing film on both sides of the plate and frame components, and the extension direction of the vortex extension channel is consistent with the expansion direction of the pressing film. The ends of the vortex extension channel are provided with limiting curved ends, and a movable block is movably sleeved inside the channel of the vortex extension channel, and the curved surfaces on both sides of the movable block are in tangential contact with the inner side surface of the channel of the vortex extension channel. The initial end of the vortex extension channel is fixedly connected to the inner side surface of the air injection hole on the plate and frame components, and the air injection hole and the channel of the vortex extension channel are interconnected. The movable block is connected to the inner side surface of the air injection hole on the plate and frame components. A reset soft spring is connected between them, and an installation groove is provided on the movable block. Both inner sides of the installation groove provided by the movable block are provided with symmetrically distributed side grooves, and inner blocks are movably sleeved in the side grooves, and compression springs are connected between the inner blocks and the inner sides of the side grooves, and inner shafts are sleeved between the inner blocks, and cams are movably sleeved on the shaft bodies of the inner shafts, and the cams are symmetrically distributed in the movable blocks and do not interfere with each other, and the cams are respectively in contact with the inner sides of the pressure membranes on both sides, a pressure relief valve is fixedly installed on the channel wall of the initial end of the vortex extension channel, the filtrate holes are respectively aligned with the drainage pipes at the four corners, and the center pipe is aligned with the grouting pipe.

[0008] Furthermore, the filter assembly includes an external plate, the center of the external plate is fixedly connected to the grouting pipe, the four corners of the external plate are respectively fixedly connected to the drainage pipe, a filter frame is fixedly installed on the outside of the external plate, a filter plate is fixedly installed on the inside of the filter frame, the center of the filter plate is fixedly connected to the grouting pipe, a sealing plate is fixedly installed on the outside of the filter frame, the center of the sealing plate is fixedly connected to the grouting pipe, and the bottom end of the sealing plate is fixedly connected to the drainage pipe.

[0009] Furthermore, the separation component includes a rear axle block, which is installed on the outer bottom end of the rear mounting plate, and a front axle block is fixedly installed on the outer bottom end of the front mounting plate, a guide column is fixedly connected between the rear axle block and the front axle block, a lead screw is movably sleeved between the rear axle block and the front axle block, a servo motor is fixedly installed on the outer side surface of the rear axle block, the driving end of the servo motor is fixedly connected to the shaft body of the lead screw, the shaft body of the guide column is movably sleeved with a column sleeve, the column sleeve is threadedly sleeved with the shaft body of the lead screw, and a control switch is provided on the rear axle block, and the control switch is electrically connected to the servo motor.

[0010] Furthermore, a limit plate is provided at the bottom end of the column sleeve, an inner groove is opened inside the column sleeve, a slave switch is installed at the bottom of the inner groove opened by the column sleeve, the inner groove of the column sleeve is movably sleeved with a movable inclined block, the movable inclined block is provided with an inclined surface, a contact block is installed at the bottom end of the movable inclined block, a reset spring is fixedly connected between the bottom end of the movable inclined block and the bottom end of the inner groove of the column sleeve, and the slave switch is electrically connected to the servo motor.

[0011] Technical effects and advantages of the present invention: The present invention is provided with a filter press assembly, and a press machine drives a pressure plate to push a plurality of plate-frame members movably installed on the side rail plate to fit closely to each other, and a complete filter chamber is formed between the pressing membranes installed at adjacent plate-frame members. At this time, the mud pump injects the mud stored in the mud pool into the complete filter chamber formed by the pressing membrane through the grouting pipe. After the mud fills the first filter chamber, it fills the next complete filter chamber in sequence through the aligned central pipe. After the injection is completed, the mud begins to be dehydrated for the first time under the action of pressure, and the filtered water is injected into the filtrate hole through the liquid guide grooves at the four corners of the pressing membrane. The filtrate holes fit together to form a filter water channel, and the filtered water flows into the channel and is discharged from the drain pipe. Then the air pump injects air into the air pipe through the connecting pipe, and the high-pressure airflow is injected into the interior of the plate-frame member through the hose and the air injection hole connected thereto. The high-pressure airflow first enters the interior of the channel of the vortex extension channel through the air injection hole, thereby pushing the movable block to move in the interior of the channel of the vortex extension channel, and finally moves to the limit curved end to stop. When the movable block moves, the cams installed thereon respectively The film pressing on both sides is rolled. During rolling, the constantly undulating cam will locally press the mud in the filter chamber. With the injection of high-pressure airflow, when the movable block stops moving, the high-pressure airflow is injected into the internal space of the plate and frame through the pressure relief valve, and the film pressing begins to expand outward, and the complete filter chamber formed by the adjacent one begins to be compressed. The mud here begins to be dehydrated for the second time, and the filtrate is discharged into the water filtration channel formed by the filtrate hole. After the slurry is pressed, the adjacent plate and frame parts begin to separate, and the filter cake produced by the filter pressing falls from here. After the filter cake falls, some mud flakes will still adhere to the surface of the film pressing. At this time, the air pump is turned off, and the high-pressure airflow stops being injected. The movable block is pulled back and reset under the action of the reset soft spring. The movable block moves from the limit curved end to the initial end of the vortex extension path. In this process, the cams on both sides continuously roll up and down, so that the film pressing surfaces on both sides in contact with them produce a shaking effect, thereby shaking off some of the adhered mud flakes to prevent the mud flakes from having adverse effects on subsequent filter pressing. In this way, the secondary shaking-off effect of the mud flakes is achieved.

[0012] The present invention is provided with a filtering assembly. After the filtered water is discharged from the drain pipe, it enters the filter frame. The fine mud impurities carried in the filtered water will be filtered by the filter plate. After the secondary filtration, the filtered water will be discharged outwardly from the drain pipe. In this way, the secondary filtering effect of the device on the filtered water is achieved.

[0013] The present invention is provided with a separation component. After the filtration work is completed, the servo motor drives the screw to rotate, and the rotation of the screw drives the column sleeve to move forward. When the inclined surface contacts the side sleeve plate, the movable inclined block will move downward, so that the contact block contacts the driven switch, thereby triggering the driven switch to control the servo motor to change the direction, so that the movable inclined block drives the plate frame to move backward. When the plate frame moves to a suitable position, the servo motor can be controlled to change the direction through the control switch, so that the movable inclined block continues to move forward. Through the above control method, adjacent plate and frame parts can be separated in sequence and controlled at a suitable spacing, thereby facilitating the falling of the filter cake and the secondary shaking-off effect of some mud sheets. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0015] Figure 2 It is a schematic diagram of the structure of the clamping assembly of the present invention.

[0016] Figure 3 It is a schematic diagram of the structure of the filter press assembly of the present invention.

[0017] Figure 4 It is a schematic diagram of the cross-sectional structure of the filter press assembly of the present invention.

[0018] Figure 5 It is a schematic diagram of the partial cross-sectional structure of the plate frame member of the present invention.

[0019] Figure 6 It is a schematic diagram of the cross-sectional structure of the filtrate hole of the present invention.

[0020] Figure 7 It is a schematic diagram of the cross-sectional structure of the gas injection hole of the present invention.

[0021] Figure 8 The present invention is attached Figure 7 An enlarged schematic diagram of the structure when point A is not cut into sections.

[0022] Fig. 9 The present invention is attached Figure 1 Schematic diagram of the local explosion structure at location B.

[0023] Fig.10 It is a schematic diagram of the separation component structure of the present invention.

[0024] Fig.11 It is a schematic diagram of the cross-sectional structure of the column sleeve of the present invention.

[0025] The accompanying drawings are marked as follows: 1. Clamping assembly; 101. Rear column; 102. Front column; 103. Rear mounting plate; 104. Front mounting plate; 105. Press; 106. Press plate; 107. Side rail plate; 108. Drain pipe; 109. Grouting pipe; 110. Mud pump; 111. Mud pool; 112. Collecting box; 2. Filter press assembly; 201. Plate and frame; 202. Filtrate hole; 203. Liquid guide groove; 204. Air injection hole; 205. Film pressing; 206. Center pipe; 207. Side sleeve plate; 208. Mounting plate; 209. Air pump; 210. Pipe support plate; 211. Air pipe; 212. Connecting pipe; 213. Hose; 214. Vortex extension channel ; 215, limit curved end; 216, movable block; 217, reset soft spring; 218, side groove; 219, inner block; 220, compression spring; 221, inner shaft; 222, cam; 223, pressure relief valve; 3, filter assembly; 301, external plate; 302, filter frame; 303, filter plate; 304, sealing plate; 305, drain pipe; 4, separation assembly; 401, rear axle block; 402, front axle block; 403, guide column; 404, lead screw; 405, servo motor; 406, column sleeve; 407, control switch; 408, limit plate; 409, driven switch; 410, movable inclined block; 411, inclined surface; 412, contact block; 413, reset spring. DETAILED DESCRIPTION

[0026] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the present invention. In addition, the forms of the various structures recorded in the following embodiments are only examples. The sludge treatment equipment for sewage treatment involved in the present invention is not limited to the various structures recorded in the following embodiments. All other embodiments obtained without creative work by ordinary technicians in this field belong to the scope of protection of the present invention.

[0027] Reference Figure 1 The present invention provides a sludge treatment device for sewage treatment, comprising a pressing component 1, a filter pressing component 2 is provided on the pressing component 1, a filter component 3 is fixedly installed at the front end of the pressing component 1, and a separation component 4 is fixedly installed on the outer side of the pressing component 1; In this embodiment, the clamping component 1 is used to drive the filter press component 2 to extrude and dehydrate the sludge, the filtering component 3 is used to further filter the discharged filtrate, and the separation component 4 is used to realize the sequential separation function of the filter press component 2. The specific structure and working principle of the above components will be described in detail later.

[0028] Reference Figure 2The clamping assembly 1 includes a rear column 101, a front column 102 is symmetrically distributed on the front side of the rear column 101, a rear plate 103 is fixedly installed on the upper end of the rear column 101, a front plate 104 is fixedly installed on the upper end of the front column 102, a press 105 is fixedly installed on the outer side of the rear plate 103, a driving shaft of the press 105 passes through the rear plate 103 and is fixedly connected to a pressing plate 106, and the rear plate 103 and the front plate 104 are fixedly connected on both sides. Side rail plates 107 are symmetrically installed between the front columns 104, drainage pipes 108 are fixedly sleeved at the four corners of the front panel 104, a grouting pipe 109 is fixedly sleeved at the center of the front panel 104, a mud pump 110 is fixedly connected to the end of the grouting pipe 109, a mud pool 111 is fixedly installed on the outside of the front column 102, the mud pump 110 is located inside the mud pool 111, and a collection box 112 is fixedly installed between the bottom of the rear column 101 and the front column 102; In this embodiment, the press 105 drives the pressure plate 106 to squeeze the filter press assembly 2. The mud is first stored in the mud pool 111 and pumped into the filter press assembly 2 through the mud pump 110 and the grouting pipe 109. The generated filter cake will fall into the collection box 112 for collection.

[0029] Reference Figure 3-Figure 8The filter press assembly 2 includes a plate frame 201, which is sequentially placed between the pressing plate 106 and the front plate 104. The four corners of the plate frame 201 are provided with filtrate holes 202, and the filtrate holes 202 are provided with liquid guide grooves 203. The bottom side of the plate frame 201 is provided with gas injection holes 204. Both sides of the plate frame 201 are provided with pressing films 205, and the center of the pressing films 205 is fixedly sleeved with a central tube 206. The pressing films 205 are folded inward to form a filter chamber, and the liquid guide groove 203 is connected to the filter chamber of the pressing films 205. The two ends of the plate frame 201 are fixedly provided with side sleeves 207, and the side sleeves 207 are respectively connected to the side rail plates 1 at both ends. 07 movable sleeve, the bottom end of the rear column 101 is fixedly installed with a mounting plate 208, and an air pump 209 is fixedly installed on the mounting plate 208. The outer sides of the rear column 101 and the front column 102 are fixedly installed with a pipe support plate 210, and an air pipe 211 is fixedly sleeved between the pipe support plates 210. A connecting pipe 212 is connected between the pipe of the air pipe 211 and the air pump 209, and a hose 213 is connected between the pipe of the air pipe 211 and the air injection hole 204 in turn. A vortex extension channel 214 is installed inside the plate frame 201, and the two sides of the vortex extension channel 214 are respectively connected to the inner side surfaces of the pressing film 205 on both sides of the plate frame 201. The extension of the vortex extension channel 214 The direction is consistent with the expansion direction of the pressing film 205. The ends of the vortex extension channel 214 are provided with limiting curved ends 215. The channel of the vortex extension channel 214 is movably sleeved with a movable block 216. The curved surfaces on both sides of the movable block 216 are tangentially in contact with the inner side surface of the channel of the vortex extension channel 214. The initial end of the vortex extension channel 214 is fixedly connected to the inner side surface of the gas injection hole 204 on the plate frame 201. The gas injection hole 204 and the channel of the vortex extension channel 214 are interconnected. A reset soft spring 217 is connected between the movable block 216 and the inner side surface of the gas injection hole 204 on the plate frame 201. A mounting groove is provided on the movable block 216. The mounting groove provided on the movable block 216 Symmetrically distributed side grooves 218 are provided on both inner sides of the groove, and inner blocks 219 are movably sleeved in the side grooves 218. Compression springs 220 are connected between the inner blocks 219 and the inner sides of the side grooves 218, and inner shafts 221 are sleeved between the inner blocks 219. Cams 222 are movably sleeved on the shaft bodies of the inner shafts 221. The cams 222 are symmetrically distributed in the movable blocks 216 and do not interfere with each other. The cams 222 are in contact with the inner sides of the pressure membranes 205 on both sides, respectively. A pressure relief valve 223 is fixedly installed on the wall of the initial end channel of the vortex extension channel 214, and the filtrate holes 202 are respectively aligned with the drainage pipes 108 at the four corners, and the central pipe 206 is aligned with the grouting pipe 109; In this embodiment, the press machine 105 drives the pressing plate 106 to push the several plate frame members 201 movably installed on the side rail plate 107 to fit closely to each other, and a complete filter chamber is formed between the pressing membranes 205 installed at the adjacent plate frame members 201. At this time, the mud pump 110 injects the mud stored in the mud pool 111 into the complete filter chamber formed by the pressing membrane 205 through the grouting pipe 109. After the mud fills the first filter chamber, it fills the next complete filter chamber in turn through the aligned central pipe 206. After the injection is completed, the mud begins to be dehydrated for the first time under the action of pressure, and the filtered water passes through the liquid guide grooves at the four corners of the pressing membrane 205. 203 is injected into the filtrate hole 202, and the filtrate holes 202 are fitted together to form a water filtration channel, and the filtered water flows into the channel and is discharged from the drain pipe 108. Then the air pump 209 injects air into the air pipe 211 through the connecting pipe 212, and the high-pressure airflow is injected into the interior of the plate frame 201 through the hose 213 and the air injection hole 204 connected thereto. The high-pressure airflow first enters the channel interior of the vortex extension channel 214 through the air injection hole 204, thereby pushing the movable block 216 to move in the channel interior of the vortex extension channel 214, and finally moves to the limit stop at the limit curved end 215, and the movable block 216 During the movement, the cam 222 installed thereon rolls the pressing films 205 on both sides respectively. During the rolling, the constantly rising and falling cam 222 will locally press the mud in the filter chamber. With the injection of high-pressure airflow, when the movable block 216 stops moving, the high-pressure airflow is injected into the internal space of the plate frame 201 through the pressure relief valve 223, and the pressing film 205 begins to expand outward, and the complete filter chamber formed by the adjacent plate frame 201 begins to be compressed. The mud here begins to be dehydrated for the second time, and the filtrate is discharged into the water filtration channel formed by the filtrate hole 202. After the slurry is filtered, the adjacent plate frame 201 begins to separate, and the filter press is completed. The produced filter cake falls from here. After the filter cake falls, some mud flakes will still adhere to the surface of the pressure film 205. At this time, the air pump 209 is turned off, and the high-pressure airflow stops being injected. The movable block 216 is pulled back and reset under the action of the reset soft spring 217. The movable block 216 moves from the limit curved end 215 to the initial end of the vortex extension path 214. During this process, the cams 222 on both sides continuously rise and fall, causing the surfaces of the pressure films 205 on both sides in contact with them to produce a shaking effect, thereby shaking off some of the adhered mud flakes to prevent the mud flakes from having adverse effects on subsequent filter pressing. In this way, the secondary shaking-off effect of the mud flakes is achieved.

[0030] Reference Fig. 9The filter assembly 3 includes an external plate 301, the center of the external plate 301 is fixedly sleeved with the pipe of the grouting pipe 109, the four corners of the external plate 301 are respectively fixedly sleeved with the drainage pipe 108, a filter frame 302 is fixedly installed on the outside of the external plate 301, a filter plate 303 is fixedly installed inside the filter frame 302, the center of the filter plate 303 is fixedly sleeved with the grouting pipe 109, a sealing plate 304 is fixedly installed on the outside of the filter frame 302, the center of the sealing plate 304 is fixedly sleeved with the grouting pipe 109, and the bottom end of the sealing plate 304 is fixedly sleeved with a drainage pipe 305; In this embodiment, the filtered water is discharged from the drain pipe 108 and enters the filter frame 302. The fine mud impurities carried in the filtered water will be filtered by the filter plate 303. The filtered water after secondary filtration will be discharged outward from the drain pipe 305. In this way, the secondary filtration effect of the device on the filtered water is achieved.

[0031] Reference Fig.10 and Fig.11 The separation component 4 includes a rear axle block 401, which is mounted on the outer bottom end of the rear mounting plate 103, and a front axle block 402 is fixedly mounted on the outer bottom end of the front mounting plate 104. A guide column 403 is fixedly connected between the rear axle block 401 and the front axle block 402, and a lead screw 404 is movably sleeved between the rear axle block 401 and the front axle block 402. A servo motor 405 is fixedly mounted on the outer side of the rear axle block 401, and the driving end of the servo motor 405 is fixedly connected to the shaft body of the lead screw 404. The shaft body of the guide column 403 is movably sleeved with a column sleeve 406, and the column sleeve 406 is threadedly sleeved with the shaft body of the lead screw 404. A control switch 407 is provided on the rear axle block 401, and the control switch 407 is electrically connected to the servo motor 405. A limit plate 408 is provided at the bottom end of the column sleeve 406. An inner groove is provided inside the column sleeve 406, and a driven switch 409 is installed at the bottom of the inner groove provided by the column sleeve 406. A movable inclined block 410 is movably sleeved in the inner groove of the column sleeve 406, and an inclined surface 411 is provided on the movable inclined block 410. A contact block 412 is installed at the bottom end of the movable inclined block 410. A return spring 413 is fixedly connected between the bottom end of the movable inclined block 410 and the bottom end of the inner groove of the column sleeve 406, and the driven switch 409 is electrically connected to the servo motor 405. In this embodiment, after the filtration work is completed, the servo motor 405 drives the lead screw 404 to rotate, and the rotation of the lead screw 404 drives the column sleeve 406 to move forward. When the inclined surface 411 contacts the side sleeve plate 207, the movable inclined block 410 will move downward, so that the contact block 412 contacts the driven switch 409, thereby triggering the driven switch 409 to control the servo motor 405 to change the direction, so that the movable inclined block 410 drives the plate frame 201 to move backward. When the plate frame 201 moves to a suitable position, the servo motor 405 can be controlled to change the direction again by controlling the switch 407, so that the movable inclined block 410 continues to move forward. Through the above control method, adjacent plate frame members 201 can be separated in sequence and controlled at a suitable spacing, thereby facilitating the falling of the filter cake and the secondary shaking-off effect of some mud sheets.

[0032] The working principle of the present invention is as follows: the press machine 105 drives the pressing plate 106 to push the several plate frame members 201 movably installed on the side rail plate 107 to fit closely to each other, and a complete filter chamber is formed between the pressing membranes 205 installed at the adjacent plate frame members 201. At this time, the mud pump 110 injects the mud stored in the mud pool 111 into the complete filter chamber formed by the pressing membrane 205 through the grouting pipe 109. After the mud fills the first filter chamber, it fills the next complete filter chamber in turn through the aligned central pipe 206. After the injection is completed, the mud begins to be dehydrated for the first time under the action of pressure, and the filtered water is injected into the filtrate hole 202 through the liquid guide grooves 203 at the four corners of the pressing membrane 205. The filtrate holes 202 fit together to form a filtrate channel, and the filtered water flows into the channel and is discharged from the drainage pipe 1 08, and then the air pump 209 injects air into the air pipe 211 through the connecting pipe 212. The high-pressure airflow is injected into the interior of the plate frame 201 through the hose 213 and the air injection hole 204 connected thereto. The high-pressure airflow first enters the channel of the vortex extension channel 214 through the air injection hole 204, thereby pushing the movable block 216 to move in the channel of the vortex extension channel 214, and finally moves to the limit curved end 215 to stop. When the movable block 216 moves, the cam 222 installed thereon rolls the pressure membrane 205 on both sides respectively. When rolling, the constantly fluctuating cam 222 will locally press the mud in the filter chamber. With the injection of the high-pressure airflow, when the movable block 216 stops moving, the high-pressure airflow passes through the pressure relief valve 223 is injected into the internal space of the plate frame 201, the film 205 begins to expand outward, and the complete filter chamber formed by the adjacent filter chamber begins to compress. The mud here begins to be dehydrated for the second time, and the filtrate is discharged into the water filtration channel formed by the filtrate hole 202. When the slurry is pressed and filtered, the adjacent plate frame 201 begins to separate, and the filter cake produced by the filter press falls from here. After the filter cake falls, some mud pieces will still adhere to the surface of the film 205. At this time, the air pump 209 is turned off, and the high-pressure airflow stops injecting. The movable block 216 is pulled back and reset under the action of the reset soft spring 217. The movable block 216 moves from the limit curved end 215 to the initial end of the vortex extension path 214. During this process, the cams 222 on both sides continuously roll up and down, so that the film 222 on both sides in contact with it is pressed and filtered. 05 surface produces a shaking effect, thereby shaking off some of the adhered mud pieces, preventing the mud pieces from having adverse effects on subsequent filter pressing. In this way, the secondary shaking-off effect of the mud pieces is achieved, and the filtered water is discharged from the drain pipe 108 and enters the filter frame 302. The fine mud impurities carried in the filtered water will be filtered by the filter plate 303, and the filtered water after secondary filtration will be discharged outward from the drain pipe 305. In this way, the secondary filtration effect of the device on the filtered water is achieved. After the filter pressing work is completed, the servo motor 405 drives the screw 404 to rotate, and the rotation of the screw 404 drives the column sleeve 406 to move forward. When the inclined surface 411 contacts the side sleeve plate 207, the movable inclined block 410 will move downward, so that the contact block 412 will contact the driven switch 409.This triggers the slave switch 409 to control the servo motor 405 to change the direction, so that the movable inclined block 410 drives the plate frame 201 to move backward. When the plate frame 201 moves to a suitable position, the servo motor 405 can be controlled again by the control switch 407 to change the direction, so that the movable inclined block 410 continues to move forward. Through the above control method, adjacent plate frame members 201 can be separated in sequence and controlled at a suitable spacing, so as to facilitate the falling of the filter cake and the secondary shaking effect of some mud flakes.

[0033] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change; Secondly: In the drawings of the embodiments disclosed in the present invention, only the structures related to the embodiments disclosed in the present invention are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present invention can be combined with each other; Finally: The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A sludge treatment equipment for sewage treatment, characterized in that: It comprises a pressing assembly (1), on which a filter pressing assembly (2) is provided, a filter assembly (3) is fixedly mounted on the front end of the pressing assembly (1), and a separation assembly (4) is fixedly mounted on the outside of the pressing assembly (1); The clamping assembly (1) comprises a rear column (101), a front column (102) symmetrically distributed on the front side of the rear column (101), a rear mounting plate (103) fixedly mounted on the upper end of the rear column (101), a front mounting plate (104) fixedly mounted on the upper end of the front column (102), a press (105) fixedly mounted on the outer side of the rear mounting plate (103), a drive shaft of the press (105) passing through the rear mounting plate (103) and fixedly connected to a pressing plate (106), and a rear mounting plate (103) and a front mounting plate (104) are fixedly mounted on both sides of the rear mounting plate (103). Side rail plates (107) are symmetrically installed between the front columns (104); drainage pipes (108) are fixedly sleeved at the four corners of the front plate (104); a grouting pipe (109) is fixedly sleeved at the center of the front plate (104); a mud pump (110) is fixedly connected to the end of the grouting pipe (109); a mud pool (111) is fixedly installed on the outside of the front column (102); the mud pump (110) is located inside the mud pool (111); and a collection box (112) is fixedly installed between the bottoms of the rear column (101) and the front column (102).

2. A sludge treatment equipment for sewage treatment according to claim 1, characterized in that: The filter press assembly (2) comprises a plate frame (201), wherein the plate frame (201) is sequentially placed between a pressing plate (106) and a front plate (104), filtrate holes (202) are provided at four corners of the plate frame (201), and liquid guide grooves (203) are provided on the filtrate holes (202), and gas injection holes (204) are provided on the bottom side of the plate frame (201), and a pressing film (205) is installed on both sides of the plate frame (201), and a central tube (206) is fixedly sleeved at the center of the pressing film (205), and the pressing film (205) is folded inwardly to form a filter chamber, and the liquid guide groove (203) is connected to the filter chamber of the pressing film (205), and side sleeve plates (207) are fixedly installed at both ends of the plate frame (201), and the side sleeve plates (207) are movably sleeved with the side rail plates (107) at the two ends.

3. A sludge treatment equipment for sewage treatment according to claim 1, characterized in that: A mounting plate (208) is fixedly mounted on the bottom end of the rear column (101), an air pump (209) is fixedly mounted on the mounting plate (208), pipe support plates (210) are fixedly mounted on the outer sides of the rear column (101) and the front column (102), an air pipe (211) is fixedly sleeved between the pipe support plates (210), a connecting pipe (212) is connected between the pipe of the air pipe (211) and the air pump (209), and a hose (213) is sequentially connected between the pipe of the air pipe (211) and the air injection hole (204).

4. A sludge treatment equipment for sewage treatment according to claim 2, characterized in that: The plate frame (201) is provided with a vortex extension channel (214) inside. Both sides of the vortex extension channel (214) are respectively connected to the inner side surfaces of the pressing film (205) on both sides of the plate frame (201). The extension direction of the vortex extension channel (214) is consistent with the expansion direction of the pressing film (205). The ends of the vortex extension channel (214) are provided with a limit curved end (215). The channel of the vortex extension channel (214) is movably sleeved with a movable block. (216), the curved surfaces on both sides of the movable block (216) are in tangential contact with the inner side surface of the channel of the vortex extension channel (214), the initial end of the vortex extension channel (214) is fixedly connected to the inner side surface of the gas injection hole (204) on the plate frame member (201), the gas injection hole (204) and the channel of the vortex extension channel (214) are interconnected, and a reset soft contact is connected between the movable block (216) and the inner side surface of the gas injection hole (204) on the plate frame member (201). The movable block (216) is provided with a mounting groove, and the mounting groove of the movable block (216) is provided with symmetrically distributed side grooves (218) on both inner sides thereof, and the side grooves (218) are movably sleeved with inner blocks (219), and compression springs (220) are connected between the inner blocks (219) and the inner sides of the side grooves (218), and inner shafts (221) are sleeved between the inner blocks (219), and the shaft body of the inner shaft (221) is provided with a spring (221). The cams (222) are movably sleeved, and the cams (222) are symmetrically distributed in the movable block (216) without interfering with each other. The cams (222) are in contact with the inner side surfaces of the pressure membrane (205) on both sides respectively. A pressure relief valve (223) is fixedly installed on the wall surface of the initial end channel of the vortex extension channel (214). The filtrate holes (202) are respectively aligned with the drainage pipes (108) at the four corners, and the central pipe (206) is aligned with the grouting pipe (109).

5. The sludge treatment equipment for sewage treatment according to claim 1, characterized in that: The filter assembly (3) comprises an external plate (301), the center of the external plate (301) is fixedly sleeved with the pipe of the grouting pipe (109), the four corners of the external plate (301) are respectively fixedly sleeved with the drainage pipe (108), a filter frame (302) is fixedly installed on the outside of the external plate (301), a filter plate (303) is fixedly installed inside the filter frame (302), the center of the filter plate (303) is fixedly sleeved with the grouting pipe (109), a sealing plate (304) is fixedly installed on the outside of the filter frame (302), the center of the sealing plate (304) is fixedly sleeved with the grouting pipe (109), and the bottom end of the sealing plate (304) is fixedly sleeved with the drainage pipe (305).

6. A sludge treatment equipment for sewage treatment according to claim 1, characterized in that: The separation assembly (4) comprises a rear axle block (401), the rear axle block (401) being mounted on the outer bottom end of the rear mounting plate (103), the outer bottom end of the front mounting plate (104) being fixedly mounted with a front axle block (402), a guide column (403) being fixedly connected between the rear axle block (401) and the front axle block (402), a lead screw (404) being movably sleeved between the rear axle block (401) and the front axle block (402), and the rear axle block (40 1) is fixedly mounted with a servo motor (405), the driving end of the servo motor (405) is fixedly connected to the shaft of the lead screw (404), the shaft of the guide column (403) is movably sleeved with a column sleeve (406), the column sleeve (406) is threadedly sleeved with the shaft of the lead screw (404), and the rear axle block (401) is provided with a control switch (407), and the control switch (407) is electrically connected to the servo motor (405).

7. A sludge treatment equipment for sewage treatment according to claim 6, characterized in that: A limit plate (408) is provided at the bottom end of the column sleeve (406); an inner groove is provided inside the column sleeve (406); a slave switch (409) is installed at the bottom of the inner groove provided in the column sleeve (406); a movable inclined block (410) is movably sleeved in the inner groove of the column sleeve (406); an inclined surface (411) is provided on the movable inclined block (410); a contact block (412) is installed at the bottom end of the movable inclined block (410); a return spring (413) is fixedly connected between the bottom end of the movable inclined block (410) and the bottom end of the inner groove of the column sleeve (406); and the slave switch (409) is electrically connected to the servo motor (405).

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