Papermaking sludge dewatering and drying apparatus

Abstract

The application provides a papermaking sludge dewatering and drying device, and belongs to the technical field of sludge treatment. The device comprises a material conveying unit and a paving unit. The material conveying unit is arranged in a machine body. The material conveying unit comprises a conveyor, a material receiving plate abutting between a feeding port and the conveyor, and a material blocking plate abutting to a top surface of the material receiving plate. The front end of the material receiving plate is arranged in a downward inclined manner. The top surface of the material receiving plate is concave and forms a plurality of grooves. The paving unit is arranged in the machine body and above the conveyor. The paving unit has a paving part abutting to the surface of the conveyor belt. The paving part is arranged in a spaced manner with the surface of the conveyor belt. The paving part reciprocally moves in a direction perpendicular to the front-back direction in a horizontal plane. The application improves the drying effect of sludge.

Description

Technical Field

[0001] This invention belongs to the technical field of sludge treatment, specifically relating to a papermaking sludge dewatering and drying equipment. Background Technology

[0002] Driven by the high market demand for paper, machine-made paper is becoming increasingly common. However, the continuous development of industrialized machine-made paper production generates a large amount of sludge after the treatment of wastewater. Sludge is a type of biological solid waste, containing not only abundant cellulose organic matter and plant nutrients such as nitrogen, phosphorus, and potassium, but also trace amounts of heavy metals and pathogens. Direct disposal of sludge not only wastes resources but also causes secondary pollution to the environment.

[0003] The sludge drying stage is the core of sludge treatment. The sludge is continuously heated in a high-temperature environment, and the internal moisture evaporates rapidly. At the same time, a certain pyrolysis reaction occurs, which greatly reduces the volume of the sludge and makes its properties more stable.

[0004] The sludge is transported to the drying equipment via a conveyor belt. The sludge mainly accumulates in the middle of the conveyor belt. The accumulated sludge will hinder the penetration of hot air or hot wind, making it difficult for the moisture inside the sludge to evaporate effectively, resulting in poor drying effect. Summary of the Invention

[0005] This invention provides a papermaking sludge dewatering and drying device, which aims to solve the technical problem of poor drying effect.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is: to provide a papermaking sludge dewatering and drying device, comprising a body having a feed inlet and a hot air circulation system, and further comprising:

[0007] A material conveying unit is disposed inside the machine body. The material conveying unit includes a conveyor, a receiving plate connected between the feed inlet and the conveyor, and a baffle plate abutting against the top surface of the receiving plate. The front end of the receiving plate is inclined downward, and the top surface of the receiving plate is recessed to form multiple grooves.

[0008] A tiling unit is disposed inside the machine body and located above the conveyor. The tiling unit has a tiling portion that abuts against the surface of the conveyor belt of the conveyor. The tiling portion is spaced apart from the surface of the conveyor belt of the conveyor. The tiling portion reciprocates in a horizontal plane in a direction perpendicular to the front-back direction.

[0009] In one possible implementation, the paving unit includes rake teeth forming the paving portion and a moving component that drives the rake teeth to reciprocate. The rake teeth are arranged vertically, and multiple rake teeth are arranged in a line along the sludge movement direction. Scrapers that slide vertically are fitted onto the rake teeth.

[0010] In one possible implementation, the tiling portion further includes a substrate fixed to the tips of the plurality of rake teeth;

[0011] The moving component includes:

[0012] A first motor is mounted on the machine body;

[0013] The traveling roller is connected to the first motor and is horizontally arranged with its axis perpendicular to the front-to-back direction;

[0014] A guide rod is fixed to the inner wall of the machine body, and the guide rod is parallel to the traveling roller;

[0015] The traveling seat is sleeved on the outer periphery of the traveling roller and screwed to the traveling roller. The traveling seat is slidably connected to the guide rod and fixed to the top of the base plate.

[0016] In one possible implementation, a trigger rod is fixedly mounted on the top surface of the scraper in a vertical direction. The top end of the trigger rod penetrates the substrate and the two slide together in a vertical direction. A first reset plate is fixedly mounted on the outer periphery of the trigger rod. A first elastic member is fixedly mounted between the first reset plate and the substrate. The first elastic member has a preload force that causes the first reset plate to move upward. A trigger block is fixedly mounted on the inner wall of the machine body. The bottom wall of the trigger block has an inclined surface for pressing the trigger rod to move downward.

[0017] In one possible implementation, the tiling portion has multiple rows, and the tiling portion further includes a substrate fixed to the tips of the multiple rake teeth;

[0018] The moving component includes:

[0019] A hanging plate is fixed to the inner wall of the machine body;

[0020] A reciprocating plate is horizontally set and perpendicular to the direction of sludge movement. The reciprocating plate passes through the bottom of the hanging plate and the two are slidably adapted to each other. The base plate is fixed to the bottom wall of the reciprocating plate.

[0021] The second reset plate is fixedly mounted on the reciprocating plate;

[0022] The second elastic member is fixed between the second reset plate and the hanging plate, and the second elastic member has a preload force that causes the reciprocating plate to move closer to the hanging plate;

[0023] The second motor is located inside the machine body;

[0024] The cam abuts against the second reset plate and is connected to the second motor drive.

[0025] In one possible implementation, a telescopic member is fixed between the substrate and the scraper, and the length of the telescopic member is adjustable in the vertical direction.

[0026] In one possible implementation, the papermaking sludge dewatering and drying equipment further includes:

[0027] The feeding unit has a pushing part that extends into the groove, and the pushing part pushes the sludge in the groove forward.

[0028] In one possible implementation, the pushing unit includes a rotating roller rotatably connected to the groove, a helical blade forming the pushing part, and a third motor drivenly connected to the rotating roller. The rotation axis of the rotating roller is parallel to the extension direction of the groove, and the helical blade is fixed to the outer periphery of the rotating roller.

[0029] In one possible implementation, a guide plate is fixed to the rear end of the receiving plate. The guide plate has an inclined section located above the receiving plate and a vertical section fixed to the bottom of the inclined section and corresponding to the grooves. The angle between the inclined section and the receiving plate is an acute angle. The vertical section is perpendicular to the inclined direction of the receiving plate. The third motor is located in the area enclosed by the vertical section and the inclined section.

[0030] In one possible implementation, the pushing unit includes two synchronous wheels rotatably connected to the front and rear ends of the groove, a synchronous belt passing over the two synchronous wheels, and a pushing plate forming the pushing part. The receiving plate is provided with a fourth motor that is drively connected to the synchronous wheels.

[0031] The papermaking sludge dewatering and drying equipment provided by this invention, compared with the prior art:

[0032] Sludge enters the machine body through the feed inlet and falls onto the surface of the receiving plate. The baffle plate blocks most of the sludge, and only the sludge that enters the groove slides back along the inclination of the receiving plate onto the surface of the conveyor belt. Then, the spreading unit spreads the sludge on the surface of the conveyor belt, thereby reducing the thickness of the sludge and allowing the moisture inside the sludge to evaporate effectively, thus improving the drying effect of the sludge.

[0033] The rake teeth are equipped with scrapers that can move up and down, which can scrape off the sludge on the rake teeth; the groove is equipped with a pushing part, which rotates or moves horizontally to push the sludge in the groove forward, thereby providing additional power for the movement of the sludge and thus preventing the sludge from clogging in the groove. Attached Figure Description

[0034] Figure 1 This is a schematic diagram illustrating the structure of the machine body and the feed inlet, provided for an embodiment of the present invention.

[0035] Figure 2 This is a schematic diagram illustrating the structure of the material handling unit provided in an embodiment of the present invention;

[0036] Figure 3 This is a schematic diagram illustrating the structure of a tiled unit, provided as an embodiment of the present invention.

[0037] Figure 4 for Figure 3 A magnified view of part A in the middle;

[0038] Figure 5 This is a schematic diagram illustrating another type of tiled unit structure provided in an embodiment of the present invention;

[0039] Figure 6 for Figure 5 A magnified view of part B in the middle section;

[0040] Figure 7 This is a schematic diagram illustrating the structure of a feeding unit provided in an embodiment of the present invention;

[0041] Figure 8 This is a structural schematic diagram provided for an embodiment of the present invention, illustrating the installation position and method of the third motor;

[0042] Figure 9 This is a schematic diagram illustrating another type of feeding unit provided in an embodiment of the present invention;

[0043] Figure 10 This is a structural schematic diagram illustrating the synchronous belt motion mode provided in an embodiment of the present invention;

[0044] Figure 11 for Figure 10 A magnified view of part C in the middle.

[0045] Explanation of reference numerals in the attached figures:

[0046] 10. Machine body; 101. Feed inlet; 102. Trigger block; 1021. Inclined surface;

[0047] 20. Material conveying unit; 201. Receiving plate; 2011. Groove; 2012. Baffle plate; 202. Conveyor;

[0048] 30. Laying unit; 301. Rake teeth; 3011. Base plate; 302. Traveling roller; 303. Traveling seat; 304. Guide rod; 305. First motor; 306. Hanging plate; 307. Reciprocating plate; 308. Second reset plate; 309. Second elastic element; 310. Cam; 311. Second motor;

[0049] 40. Scraper blade; 401. Trigger rod; 4011. First reset plate; 4012. First elastic element; 402. Telescopic element;

[0050] 50. Pushing unit; 501. Rotary roller; 502. Spiral blade; 503. Third motor; 504. Synchronous pulley; 505. Synchronous belt; 5051. Pushing plate; 506. Fourth motor; 5061. Transmission roller;

[0051] 60. Guide plate; 601. Inclined section; 602. Vertical section. Detailed Implementation

[0052] To make the technical problems to be solved, the technical solutions, and the beneficial effects of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0053] Please refer to the following: Figures 1 to 11 This invention describes a papermaking sludge dewatering and drying device. The device includes a body 10 with a feed inlet 101 and a hot air circulation system, and further includes a conveying unit 20 and a spreading unit 30. The conveying unit 20 is located within the body 10 and includes a conveyor 202, a receiving plate 201 connected between the feed inlet 101 and the conveyor 202, and a baffle plate 2012 abutting against the top surface of the receiving plate 201. The front end of the receiving plate 201 is inclined downwards, and the top surface of the receiving plate 201 has a plurality of recesses 2011. The spreading unit 30 is located within the body 10 and above the conveyor 202. The spreading unit 30 has a spreading portion that abuts against the conveyor belt surface of the conveyor 202. The spreading portion is spaced apart from the conveyor belt surface of the conveyor 202, and the spreading portion reciprocates in a direction perpendicular to the front-back direction in a horizontal plane.

[0054] It should be noted that the sludge moves in a front-to-back direction, the feed inlet 101 is located at the rear of the machine body 10, and the hot air circulation system is existing technology, which will not be described in detail in this application.

[0055] The papermaking sludge dewatering and drying equipment provided in this embodiment, compared with the prior art:

[0056] Sludge enters the machine body 10 through the feed inlet 101 and falls onto the surface of the receiving plate 201. The baffle plate 2012 blocks most of the sludge, and only the sludge that enters the groove 2011 slides down the inclined surface of the receiving plate 201 onto the conveyor belt surface of the conveyor 202. Then, the spreading unit 30 spreads the sludge on the surface of the conveyor belt of the conveyor 202, thereby reducing the thickness of the sludge and allowing the moisture inside the sludge to evaporate effectively, thus improving the drying effect of the sludge.

[0057] Sludge enters the machine body 10 through the feed inlet 101, and then falls downwards onto the surface of the receiving plate 201 due to its own gravity. After the sludge accumulated on the surface of the receiving plate 201 enters the groove 2011, it slides along the inclined direction of the groove 2011 due to its own gravity until it slides onto the conveyor belt surface of the conveyor 202.

[0058] In some embodiments, see Figure 3 and Figure 4 The paving unit 30 includes rake teeth 301 forming the paving section and a moving component that drives the rake teeth 301 to move back and forth. The rake teeth 301 are arranged in a vertical direction, and multiple rake teeth 301 are arranged in a line along the sludge movement direction. A scraper 40 that slides in a vertical direction is fitted on the rake teeth 301.

[0059] Specifically, the paving section also includes a base plate 3011 fixed to the top of the plurality of rake teeth 301; the moving assembly includes a first motor, a traveling roller 302, a guide rod 304, and a traveling seat 303. The first motor is mounted on the machine body 10; the traveling roller 302 is drivenly connected to the first motor, and the traveling roller 302 is horizontally arranged and its axis is perpendicular to the front-back direction; the guide rod 304 is fixed to the inner wall of the machine body 10 and is parallel to the traveling roller 302; the traveling seat 303 is sleeved on the outer periphery of the traveling roller 302 and screwed to the traveling roller 302, the traveling seat 303 is slidably connected to the guide rod 304, and is fixed to the top of the base plate 3011.

[0060] Specifically, the first motor 305 is fixedly installed on the outer wall of the machine body 10, and the output shaft of the first motor 305 is coaxial with and fixedly connected to the traveling roller 302.

[0061] Specifically, a trigger rod 401 is fixedly mounted on the top surface of the scraper 40 in the vertical direction. The top end of the trigger rod 401 penetrates the substrate 3011 and the two slide together in the vertical direction. A first reset plate 4011 is fixedly mounted on the outer periphery of the trigger rod 401. A first elastic member 4012 is fixedly mounted between the first reset plate 4011 and the substrate 3011. The first elastic member 4012 has a preload force that causes the first reset plate 4011 to move upward. A trigger block 102 is fixedly mounted on the inner wall of the body 10. The bottom wall of the trigger block 102 has an inclined surface 1021 for pressing the trigger rod 401 to move downward.

[0062] It should be noted that the first elastic component 4012 is a telescopic rod with a spring, and the vertical direction is the up and down direction.

[0063] The first motor 305 starts and drives the traveling roller 302 to rotate. The rotation of the traveling roller 302 drives the traveling seat 303 to move along the guide rod 304. The guide rod 304 causes the traveling seat 303 to move along the length of the guide rod 304 without rotating. As a result, the traveling seat 303 drives the base plate 3011 to move along the length of the guide rod 304. In turn, the base plate 3011 drives the rake teeth 301 to move. By changing the direction of the output shaft of the first motor 305, the rake teeth 301 reciprocate. During the reciprocating movement of the rake teeth 301, the sludge is agitated and spread out, thereby reducing the thickness of the sludge and improving the drying effect and efficiency.

[0064] When the sludge has a high water content, the sludge is highly viscous. During the process of the rake teeth 301 moving the sludge, the sludge is easy to adhere to the outer periphery of the rake teeth 301. The substrate 3011 drives the trigger rod 401 to move horizontally until it is below the inclined surface 1021 of the substrate 3011 and the trigger rod 401. The substrate 3011 drives the trigger rod 401 to continue moving horizontally. Since the inclined surface 1021 has a gradually downward trend, the trigger rod 401 moves downward, thereby driving the scraper 40 to move downward. At the same time, the trigger rod 401 drives the first reset plate 4011 to press down on the first elastic member 4012. At this time, the first elastic member 4012 accumulates elastic potential energy, thereby scraping off the sludge adhering to the rake teeth 301 by the scraper 40. When the substrate 3011 drives the trigger rod 401 away from the trigger block 102, the trigger block 102 no longer presses the trigger rod 401. At this time, the first elastic member 4012 releases its elastic force, thereby driving the first reset plate 4011 to move upward, thereby driving the scraper 40 to move upward, thereby resetting the scraper 40. The scraper 40 moves up and down to scrape off the sludge adhering to the rake teeth 301, reducing sludge loss.

[0065] In some embodiments, see Figure 5 and Figure 6 The paving unit 30 includes rake teeth 301 forming the paving section and a moving component that drives the rake teeth 301 to move back and forth. The rake teeth 301 are arranged in a vertical direction, and multiple rake teeth 301 are arranged in a line along the sludge movement direction. A scraper 40 that slides in a vertical direction is fitted on the rake teeth 301.

[0066] Specifically, the spreading section has multiple rows, and the spreading section also includes a base plate 3011 fixed to the top of multiple rake teeth 301; the moving component includes a hanging plate, a reciprocating plate, a second reciprocating plate, a second elastic member, a second motor, and a cam. The hanging plate is fixed to the inner wall of the machine body 10; the reciprocating plate is horizontally arranged and perpendicular to the sludge movement direction, the reciprocating plate passes through the bottom of the hanging plate and the two are slidably adapted to each other, and the base plate 3011 is fixed to the bottom wall of the reciprocating plate; the second reset plate is fixed to the reciprocating plate; the second elastic member is fixed between the second reset plate and the hanging plate, and the second elastic member has a pre-tightening force that causes the reciprocating plate to move closer to the hanging plate; the second motor is located inside the machine body 10; the cam abuts against the second reset plate and is connected to the second motor for transmission.

[0067] Specifically, a telescopic member 402 is fixed between the substrate 3011 and the scraper 40, and the length of the telescopic member 402 is adjustable in the vertical direction.

[0068] Specifically, the telescopic component 402 can be a telescopic oil cylinder, a hydraulic cylinder, or an electric cylinder, and the second elastic component 309 is a telescopic rod with a spring.

[0069] The second motor 311 starts and drives the cam 310 to rotate. During the rotation of the cam 310, when the protrusion 2012 of the cam 310 abuts against the second reset plate 308, the cam 310 squeezes the second reset plate 308, causing the second reset plate 308 to move away from the hanging plate 306. At the same time, the second reset plate 308 stretches the second elastic member 309, and the second elastic member 309 accumulates elastic potential energy. As a result, the second reset plate 308 drives the substrate 3011 to move away from the hanging plate 306. When the non-protrusion 2012 of the cam 310 abuts against the second reset plate 308, the cam 310 no longer squeezes the second reset plate 308. At this time, the second elastic member 309 releases its elastic force, and the second elastic member 309 drives the second reset plate 308 to move closer to the hanging plate 306. As a result, the second reset plate 308 drives the substrate 3011 to move closer to the hanging plate 306. Therefore, during the rotation of the cam 310, the second reset plate 308 drives the base plate 3011 to reciprocate, which in turn drives the multi-row rake teeth 301 to reciprocate. During the reciprocating movement of the multi-row rake teeth 301, the sludge is agitated and spread out, thereby reducing the thickness of the sludge and improving the drying effect and efficiency of the sludge.

[0070] When the sludge has a high moisture content, its viscosity is high, and it easily adheres to the outer periphery of the rake teeth 301. When the telescopic component 402 extends, it causes the scraper 40 to move downwards, scraping off the sludge adhering to the rake teeth 301. When the telescopic component 402 retracts, it causes the scraper 40 to move upwards, thus returning it to its original position. This reduces the thickness of the sludge, improving the drying effect and efficiency.

[0071] In some embodiments, see Figure 7 and Figure 8 The papermaking sludge dewatering and drying equipment also includes a pushing unit, which has a pushing part that extends into the groove 2011 and pushes the sludge in the groove 2011 forward.

[0072] Specifically, the pushing unit 50 includes a rotating roller 501 rotatably connected in the groove 2011, a spiral blade 502 forming a pushing part, and a third motor 503 that is drivenly connected to the rotating roller 501. The rotation axis of the rotating roller 501 is parallel to the extension direction of the groove 2011, and the spiral blade 502 is fixed on the outer periphery of the rotating roller 501.

[0073] The third motor 503 starts and drives the rotating roller 501 to rotate. The rotating roller 501 drives the spiral blade 502 to rotate. During the rotation, the spiral blade 502 pushes the sludge forward, thereby providing additional power for the movement of the sludge in the groove 2011, so that the sludge will not be blocked in the groove 2011.

[0074] In some embodiments, see Figure 7 and Figure 8 A guide plate 60 is fixedly provided at the rear end of the receiving plate 201. The guide plate 60 has an inclined section 601 located above the receiving plate 201 and a vertical section 602 fixed at the bottom of the inclined section 601 and corresponding to the groove 2011. The angle between the inclined section 601 and the receiving plate 201 is an acute angle. The vertical section 602 is perpendicular to the inclined direction of the receiving plate 201. The third motor 503 is located in the area enclosed by the vertical section 602 and the inclined section 601.

[0075] Specifically, the third motor 503 is fixedly mounted on the guide plate 60, and the output shaft of the third motor 503 is coaxial with and fixedly connected to the rotating roller 501.

[0076] After the sludge enters the machine body 10 through the feed inlet 101, the sludge falling on the surface of the guide plate 60 slides down the guide plate 60 to the surface of the receiving plate 201, so that the sludge will not come into contact with the third motor 503, thereby protecting the third motor 503 and extending its service life.

[0077] In some embodiments, see Figures 9 to 11 The papermaking sludge dewatering and drying equipment also includes a pushing unit, which has a pushing part that extends into the groove 2011 and pushes the sludge in the groove 2011 forward.

[0078] Specifically, the pushing unit 50 includes two synchronous wheels 504 rotatably connected to the front and rear ends of the groove 2011, a synchronous belt 505 passing over the two synchronous wheels 504, and a pushing plate 5051 forming the pushing part. The receiving plate 201 is provided with a fourth motor 506 that is connected to the synchronous wheels 504 for transmission. A gap is left between the synchronous belt 505 and the bottom wall of the groove 2011 for the pushing plate 5051 to move.

[0079] Specifically, there are multiple pusher plates 5051, which are evenly spaced around the outer periphery of the synchronous belt 505.

[0080] Specifically, the fourth motor 506 is fixedly installed on the outer wall of the machine body 10. The output shaft of the fourth motor 506 is fixedly provided with a transmission roller 5061. The transmission roller 5061 passes through the synchronous pulleys 504 in the same row. The transmission roller 5061 and the synchronous pulleys 504 are coaxial and fixedly connected.

[0081] The fourth motor 506 starts and drives the synchronous pulley 504 to rotate. The synchronous pulley 504 drives the synchronous belt 505 to move forward, which in turn drives the pusher plate 5051 to move. During the movement, the pusher plate 5051 pushes the sludge in the groove 2011 forward, thereby providing additional power for the movement of the sludge in the groove 2011 and preventing the sludge from clogging in the groove 2011.

[0082] 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, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A papermaking sludge dewatering and drying device, comprising a body having a feed inlet and a hot air circulation system, characterized in that, Also includes: A material conveying unit is disposed inside the machine body. The material conveying unit includes a conveyor, a receiving plate connected between the feed inlet and the conveyor, and a baffle plate abutting against the top surface of the receiving plate. The front end of the receiving plate is inclined downward, and the top surface of the receiving plate is recessed to form multiple grooves. A tiling unit is disposed inside the machine body and located above the conveyor. The tiling unit has a tiling portion that abuts against the surface of the conveyor belt of the conveyor. The tiling portion is spaced apart from the surface of the conveyor belt of the conveyor. The tiling portion reciprocates in a horizontal plane in a direction perpendicular to the front-back direction. The paving unit includes rake teeth forming the paving section and a moving component that drives the rake teeth to reciprocate. The rake teeth are arranged in a vertical direction, and multiple rake teeth are arranged in a line along the sludge movement direction. Scrapers that slide in a vertical direction are fitted on the rake teeth. The tiling portion also includes a substrate fixed to the tips of the plurality of rake teeth; The moving component includes: A first motor is mounted on the machine body; The traveling roller is connected to the first motor and is horizontally arranged with its axis perpendicular to the front-to-back direction; A guide rod is fixed to the inner wall of the machine body, and the guide rod is parallel to the traveling roller; A traveling seat is sleeved on the outer periphery of the traveling roller and screwed to the traveling roller. The traveling seat is slidably connected to the guide rod and fixed to the top of the base plate. A trigger rod is fixedly provided on the top surface of the scraper in the vertical direction. The top end of the trigger rod passes through the substrate and the two slide together in the vertical direction. A first reset plate is fixedly provided on the outer periphery of the trigger rod. A first elastic member is fixedly provided between the first reset plate and the substrate. The first elastic member has a preload force that causes the first reset plate to move upward. A trigger block is fixedly provided on the inner wall of the machine body. The bottom wall of the trigger block has an inclined surface for pressing the trigger rod to move downward. The papermaking sludge dewatering and drying equipment also includes: The feeding unit has a pushing part that extends into the groove, and the pushing part pushes the sludge in the groove forward. The pushing unit includes a rotating roller rotatably connected to the groove, a spiral blade forming the pushing part, and a third motor drivingly connected to the rotating roller. The rotation axis of the rotating roller is parallel to the extension direction of the groove, and the spiral blade is fixed to the outer periphery of the rotating roller. The rear end of the receiving plate is fixed with a guide plate. The guide plate has an inclined section located above the receiving plate and a vertical section fixed at the bottom of the inclined section and corresponding to the grooves one by one. The angle between the inclined section and the receiving plate is an acute angle. The vertical section is perpendicular to the inclined direction of the receiving plate. The third motor is located in the area enclosed by the vertical section and the inclined section. The trigger rod drives the first reset plate to press down on the first elastic member. At this time, the first elastic member accumulates elastic potential energy, and the scraper is used to scrape off the sludge adhering to the rake teeth.

2. The papermaking sludge dewatering and drying equipment as described in claim 1, characterized in that, The pushing unit includes two synchronous wheels rotatably connected to the front and rear ends of the groove, a synchronous belt passing over the two synchronous wheels, and a pushing plate forming the pushing part. The receiving plate is provided with a fourth motor that is drivenly connected to the synchronous wheels.

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