Papermaking sludge dewatering and drying equipment

Abstract

The invention provides papermaking sludge dewatering and drying equipment, and belongs to the technical field of sludge treatment.The papermaking sludge dewatering and drying equipment comprises a material conveying unit and a paving unit, the material conveying unit is arranged in a machine body and comprises a conveyor, a material receiving plate in butt joint between a feeding port and the conveyor, and a material blocking plate in butt joint with the top face of the material receiving plate; the front end of the material receiving plate is obliquely arranged downwards, and the top surface of the material receiving plate is sunken to form a plurality of grooves; the tiling unit is arranged in the machine body and located above the conveyor, the tiling unit is provided with a tiling part abutting against the surface of a conveying belt of the conveyor, the tiling part and the surface of the conveying belt of the conveyor are arranged in a spaced mode, and the tiling part reciprocates in the horizontal plane in the direction perpendicular to the front-back direction. The sludge drying device improves the sludge drying effect.

Description

Technical Field

[0001] The invention belongs to the technical field of sludge treatment, and in particular relates to papermaking sludge dehydration and drying equipment. Background Art

[0002] With the huge demand for paper in the market, papermaking by machine is becoming more and more common. In the continuous development of industrialized papermaking, a large amount of sludge papermaking is produced after the treatment of papermaking wastewater. Sludge belongs to biological solid waste. It contains a large amount of cellulose organic matter and plant nutrients such as nitrogen, phosphorus, potassium, etc., as well as trace amounts of heavy metals and pathogens. If it is directly discarded, it will not only cause a waste of resources, but also cause secondary pollution to the environment.

[0003] The sludge drying stage is the core link of sludge treatment. The sludge is continuously heated in a high temperature environment, and the internal moisture evaporates rapidly. At the same time, it is accompanied by a certain thermal decomposition reaction, which greatly reduces the volume of the sludge and stabilizes its properties.

[0004] The sludge is transported to the drying equipment through a conveyor belt. The sludge is mainly accumulated in the middle part 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 a poor drying effect. Summary of the invention

[0005] The embodiment of the present invention provides a papermaking sludge dewatering and drying device, aiming to solve the technical problem of poor drying effect.

[0006] To achieve the above object, the technical solution adopted by the present invention is: to provide a papermaking sludge dehydration and drying device, including a body with a feed inlet and a hot air circulation system, and also including: A material transport unit is arranged in the machine body, and the material transport unit includes a conveyor, a material receiving plate connected between the material inlet and the conveyor, and a material blocking plate abutting against the top surface of the material receiving plate, the front end of the material receiving plate is inclined downward, and the top surface of the material receiving plate is concave to form a plurality of grooves; A flattening unit is arranged in the machine body and located above the conveyor. The flattening unit has a flattening portion that abuts against the conveyor belt surface of the conveyor. The flattening portion is spaced apart from the conveyor belt surface of the conveyor. The flattening portion reciprocates in a horizontal plane in a direction perpendicular to the front-rear direction.

[0007] In a 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 in a vertical direction, and a plurality of the rake teeth are arranged in a line along the sludge movement direction, and a scraper that slides in the vertical direction is mounted on the rake teeth.

[0008] In a possible implementation, the flattened portion further includes a base plate fixed to the top ends of the plurality of rake teeth; The mobile assembly comprises: A first motor, disposed on the machine body; A walking roller, which is transmission-connected to the first motor, and the walking roller is horizontally arranged and its axial direction is perpendicular to the front-rear direction; A guide rod, fixedly connected to the inner wall of the machine body, wherein the guide rod is parallel to the walking roller; The walking seat is sleeved on the outer circumference of the walking roller and is screwed with the walking roller. The walking seat is slidably connected to the guide rod and fixed to the top of the base plate.

[0009] In a possible implementation, a trigger rod is fixedly provided on the top surface of the scraper blade in the vertical direction, the top end of the trigger rod passes through the base plate and the two are slidably adapted in the up and down directions, 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 base plate, the first elastic member has a pre-tightening force that causes the first reset plate to move upward, a trigger block is fixedly provided on the inner wall of the body, and the bottom wall of the trigger block has an inclined surface for squeezing the trigger rod to move downward.

[0010] In a possible implementation, the flattened portion is provided with a plurality of rows, and the flattened portion further comprises a base plate fixedly connected to the top ends of the plurality of rake teeth; The mobile assembly comprises: A hanging plate is fixedly mounted on the inner wall of the machine body; A reciprocating plate is arranged horizontally 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, and the base plate is fixed to the bottom wall of the reciprocating plate; A second reset plate, fixedly mounted on the reciprocating plate; A second elastic member is fixedly disposed 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; A second motor is disposed in the body; The cam abuts against the second reset plate and is drivingly connected to the second motor.

[0011] In a possible implementation, a telescopic member is fixedly provided between the substrate and the scraper blade, and the length of the telescopic member is adjustable along the vertical direction.

[0012] In a possible implementation, the papermaking sludge dewatering and drying equipment further includes: The pushing unit is provided with a pushing portion extending into the groove, and the pushing portion pushes the sludge in the groove to move forward.

[0013] In a possible implementation, the pushing unit includes a roller rotatably connected to the groove, a spiral blade forming the pushing part, and a third motor transmission-connected to the roller, the rotating axis of the roller is parallel to the extension direction of the groove, and the spiral blade is fixed to the outer periphery of the roller.

[0014] In one possible implementation, a material guide plate is fixedly provided at the rear end of the material receiving plate, and the material guide plate has an inclined section located above the material receiving plate and a vertical section fixedly provided at the bottom of the inclined section and corresponding one-to-one to the groove, the angle between the inclined section and the material receiving plate facing the side of the material receiving plate is an acute angle, the vertical section is perpendicular to the inclination direction of the material receiving plate, and the third motor is arranged in the area wrapped by the vertical section and the inclined section.

[0015] In a possible implementation, the pushing unit includes two synchronous wheels rotatably connected to the front and rear ends of the groove, a synchronous belt passing around the two synchronous wheels, and a pushing plate forming the pushing part, and a fourth motor transmission-connected to the synchronous wheels is provided on the receiving plate.

[0016] Compared with the prior art, the papermaking sludge dehydration and drying equipment provided by the present invention has the following advantages: The sludge enters the machine body from the feed port and falls onto the surface of the receiving plate. The baffle plate will block most of the sludge, and only the sludge that enters the groove will slide along the inclination of the receiving plate in the opposite direction to the conveyor belt surface of the conveyor. Then the paving unit spreads the sludge on the conveyor belt surface of the conveyor, thereby reducing the thickness of the sludge, effectively evaporating the moisture inside the sludge, and improving the drying effect of the sludge.

[0017] The rake teeth are provided with scrapers that can move up and down, and the scrapers can scrape off the sludge on the rake teeth; a pushing part is provided in the groove, and the pushing part rotates or translates to push the sludge in the groove forward, thereby providing additional power for the movement of the sludge, so that the sludge will not be blocked in the groove. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The embodiment of the present invention provides a schematic diagram of the structure of the machine body and the feed port; Figure 2 A schematic diagram of the structure of a material transport unit is provided for an embodiment of the present invention; Figure 3 A schematic diagram of a tiling unit provided in an embodiment of the present invention; Figure 4 for Figure 3 A partial enlarged schematic diagram of part A; Figure 5 A schematic diagram of the structure of another tiling unit provided in an embodiment of the present invention; Figure 6 for Figure 5 A partial enlarged schematic diagram of part B; Figure 7 A schematic diagram of a material pushing unit is provided in an embodiment of the present invention; Figure 8 A structural schematic diagram for reflecting the installation position and installation method of the third motor provided in an embodiment of the present invention; Fig. 9 A schematic diagram of the structure of another material pushing unit provided in an embodiment of the present invention; Fig.10 A structural schematic diagram for reflecting the motion mode of a synchronous belt provided in an embodiment of the present invention; Fig.11 for Fig.10 A partial enlarged schematic diagram of part C in the middle.

[0019] Description of reference numerals: 10. Machine body; 101. Feed inlet; 102. Trigger block; 1021. Inclined surface; 20, material transport unit; 201, material receiving plate; 2011, groove; 2012, material blocking plate; 202, conveyor; 30, tiling unit; 301, rake teeth; 3011, base plate; 302, walking roller; 303, walking seat; 304, guide rod; 305, first motor; 306, hanging plate; 307, reciprocating plate; 308, second reset plate; 309, second elastic member; 310, cam; 311, second motor; 40, scraper; 401, trigger rod; 4011, first reset plate; 4012, first elastic member; 402, telescopic member; 50, pusher unit; 501, roller; 502, spiral blade; 503, third motor; 504, synchronous wheel; 505, synchronous belt; 5051, pusher plate; 506, fourth motor; 5061, transmission roller; 60. material guide plate; 601. inclined section; 602. vertical section. DETAILED DESCRIPTION

[0020] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0021] Please also read Figures 1 to 11, the papermaking sludge dewatering and drying equipment of the present invention is described. A papermaking sludge dewatering and drying equipment comprises a machine body 10 having a feed inlet 101 and a hot air circulation system, and also comprises a material transport unit 20 and a flattening unit 30. The material transport unit 20 is arranged in the machine body 10, and the material transport unit 20 comprises a conveyor 202, a material receiving plate 201 connected between the feed inlet 101 and the conveyor 202, and a material blocking plate 2012 abutting against the top surface of the material receiving plate 201. The front end of the material receiving plate 201 is inclined downward, and the top surface of the material receiving plate 201 is concave to form a plurality of grooves 2011; the flattening unit 30 is arranged in the machine body 10 and is located above the conveyor 202. The flattening unit 30 has a flattening portion abutting against the conveyor belt surface of the conveyor 202, and the flattening portion is spaced apart from the conveyor belt surface of the conveyor 202. The flattening portion reciprocates in a horizontal plane in a direction perpendicular to the front-rear direction.

[0022] It should be noted that the movement direction of the sludge is the front-to-back direction, the feed port 101 is located at the rear of the machine body 10, and the hot air circulation system is a prior art, which will not be described in detail in this application.

[0023] Compared with the prior art, the papermaking sludge dehydration and drying equipment provided in this embodiment has the following advantages: The sludge enters the machine body 10 from the feed port 101 and falls onto the surface of the receiving plate 201. The baffle plate 2012 will block most of the sludge, and only the sludge entering the groove 201 will slide along the inclination of the receiving plate 201 in the opposite direction to the conveyor belt surface of the conveyor 202. Then the paving unit 30 spreads the sludge on the conveyor belt surface of the conveyor 202, thereby reducing the thickness of the sludge, effectively evaporating the moisture inside the sludge, and improving the drying effect of the sludge.

[0024] The sludge enters the machine body 10 from the feed port 101, and then falls downward 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, the sludge 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.

[0025] In some embodiments, see Figure 3 and Figure 4 The paving unit 30 includes rake teeth 301 forming a paving portion and a moving component driving the rake teeth 301 to move back and forth. The rake teeth 301 are arranged in a vertical direction. There are multiple rake teeth 301 arranged in a line along the sludge movement direction. The rake teeth 301 are provided with a scraper 40 sliding in the vertical direction.

[0026] Specifically, the flattening part also includes a base plate 3011 fixedly connected to the top of the plurality of rake teeth 301; the moving assembly includes a first motor, a walking roller 302, a guide rod 304 and a walking seat 303, the first motor is arranged on the machine body 10; the walking roller 302 is transmission-connected to the first motor, the walking roller 302 is horizontally arranged and the axial direction is perpendicular to the front and rear direction; the guide rod 304 is fixedly connected to the inner wall of the machine body 10, and the guide rod 304 is parallel to the walking roller 302; the walking seat 303 is sleeved on the outer periphery of the walking roller 302 and is screwed with the walking roller 302, the walking seat 303 is slidably connected to the guide rod 304, and is fixedly connected to the top of the base plate 3011.

[0027] Specifically, the first motor 305 is fixedly mounted 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 travel roller 302 .

[0028] Specifically, a trigger rod 401 is fixedly provided on the top surface of the scraper 40 in the vertical direction, the top end of the trigger rod 401 passes through the base plate 3011 and the two are slidably adapted in the up and down directions, a first reset plate 4011 is fixedly provided on the outer periphery of the trigger rod 401, a first elastic member 4012 is fixedly provided between the first reset plate 4011 and the base plate 3011, the first elastic member 4012 has a pre-tightening force that causes the first reset plate 4011 to move upward, a trigger block 102 is fixedly provided on the inner wall of the body 10, and the bottom wall of the trigger block 102 has an inclined surface 1021 for squeezing the trigger rod 401 to move downward.

[0029] It should be noted that the first elastic member 4012 is a telescopic rod with a spring, and the vertical direction is the up-down direction.

[0030] The first motor 305 starts to drive the walking roller 302 to rotate, and the walking roller 302 rotates to drive the walking seat 303 to move along the guide rod 304. The guide rod 304 makes the walking seat 303 not rotate but only move along the length direction of the guide rod 304, so that the walking seat 303 drives the base plate 3011 to move along the length direction of the guide rod 304, and thus 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 can move back and forth; the rake teeth 301 move the sludge during the reciprocating movement, so that the sludge is spread out, thereby reducing the thickness of the sludge and improving the drying effect and efficiency of the sludge.

[0031] When the water content of the sludge is high, the viscosity of the sludge is high. When the rake teeth 301 move the sludge, the sludge is easy to adhere to the outer periphery of the rake teeth 301. The base plate 3011 drives the trigger rod 401 to move horizontally until the base plate 3011 drives the trigger rod 401 to the bottom of the inclined surface 1021. The base plate 3011 drives the trigger rod 401 to continue to move horizontally. Since the inclined surface 1021 has a tendency to gradually move downward, the trigger rod 401 moves downward, so that the trigger rod 401 drives the scraper 40 to move downward. At the same time, the trigger rod 401 drives the first reset plate 4011 to press the first elastic member 4012 downward. At this time, the first elastic member 4012 accumulates elastic potential energy, so that the scraper 40 scrapes off the sludge adhered to the rake teeth 301; when the base plate 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, so that the first elastic member 4012 drives the first reset plate 4011 to move upward, so that the first reset plate 4011 drives the scraper 40 to move upward, thereby resetting the scraper 40. The scraper blade 40 moves up and down to scrape off the sludge adhering to the rake teeth 301, thereby reducing the loss of sludge.

[0032] In some embodiments, see Figure 5 and Figure 6 The paving unit 30 includes rake teeth 301 forming a paving portion and a moving component driving the rake teeth 301 to move back and forth. The rake teeth 301 are arranged in a vertical direction. There are multiple rake teeth 301 arranged in a line along the sludge movement direction. The rake teeth 301 are provided with a scraper 40 sliding in the vertical direction.

[0033] Specifically, the flattening part is provided with multiple rows, and the flattening part also includes a base plate 3011 fixedly connected to the top of multiple rake teeth 301; the moving assembly includes a hanging plate, a reciprocating plate, a second plate, a second elastic member, a second motor and a cam, and the hanging plate is fixed to the inner wall of the 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, 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 makes the reciprocating plate move closer to the hanging plate; the second motor is arranged in the body 10; the cam abuts against the second reset plate and is transmission-connected to the second motor.

[0034] Specifically, a telescopic member 402 is fixedly provided between the substrate 3011 and the scraper blade 40 , and the length of the telescopic member 402 is adjustable along the vertical direction.

[0035] Specifically, the telescopic member 402 may be a telescopic oil cylinder, a hydraulic cylinder, or an electric cylinder, and the second elastic member 309 is a telescopic rod with a spring.

[0036] The second motor 311 starts to drive the cam 310 to rotate. During the rotation of the cam 310, when the protruding part 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, thereby the second reset plate 308 drives the substrate 3011 to move away from the hanging plate 306; when the non-protruding part 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 the elastic force, and the second elastic member 309 drives the second reset plate 308 to move in the direction close to the hanging plate 306, thereby the second reset plate 308 drives the substrate 3011 to move in the direction close to the hanging plate 306. Therefore, when the cam 310 rotates, the second reset plate 308 drives the base plate 3011 to reciprocate, and the base plate 3011 drives the multiple rows of rake teeth 301 to reciprocate. During the reciprocating movement of the multiple rows of rake teeth 301, the sludge is moved and spread out, thereby reducing the thickness of the sludge and improving the drying effect and efficiency of the sludge.

[0037] When the sludge has a high water content, the sludge has a high viscosity and is easy to adhere to the outer periphery of the rake teeth 301. The telescopic member 402 is activated to extend and drive the scraper 40 to move downward, and the scraper 40 scrapes off the sludge adhered to the rake teeth 301; the telescopic member 402 is activated to retract and drive the scraper 40 to move upward, thereby resetting the scraper 40. This reduces the thickness of the sludge and improves the drying effect and efficiency of the sludge. 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 extending into the groove 2011, and the pushing part pushes the sludge in the groove 2011 to move forward.

[0038] Specifically, the pushing unit 50 includes a roller 501 rotatably connected to the groove 2011, a spiral blade 502 forming a pushing part, and a third motor 503 transmission-connected to the roller 501, the rotating axis of the roller 501 is parallel to the extension direction of the groove 2011, and the spiral blade 502 is fixed to the outer periphery of the roller 501.

[0039] The third motor 503 is started to drive the roller 501 to rotate, and the roller 501 drives the spiral blade 502 to rotate. The spiral blade 502 pushes the sludge forward during the rotation process, 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.

[0040] In some embodiments, see Figure 7 and Figure 8A material guide plate 60 is fixedly provided at the rear end of the material receiving plate 201, and the material guide plate 60 has an inclined section 601 located above the material receiving plate 201 and a vertical section 602 fixedly provided at the bottom of the inclined section 601 and corresponding to the groove 2011 one by one. The angle between the inclined section 601 and the material receiving plate 201 on the side facing the material receiving plate 201 is an acute angle, and the vertical section 602 is perpendicular to the inclination direction of the material receiving plate 201. The third motor 503 is arranged in the area wrapped by the vertical section 602 and the inclined section 601.

[0041] Specifically, the third motor 503 is fixedly mounted on the material guide plate 60 , and the output shaft of the third motor 503 is coaxial with and fixedly connected to the rotating roller 501 .

[0042] After the sludge enters the machine body 10 from the feed port 101 , the sludge falling on the surface of the guide plate 60 slides along the guide plate 60 to the surface of the receiving plate 201 , so that the sludge does not contact the third motor 503 , thereby protecting the third motor 503 and extending the service life of the third motor 503 .

[0043] 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 extending into the groove 2011, and the pushing part pushes the sludge in the groove 2011 to move forward.

[0044] Specifically, the pushing unit 50 includes two synchronous wheels 504 which are rotatably connected to the front and rear ends of the groove 2011, a synchronous belt 505 which passes around the two synchronous wheels 504, and a pushing plate 5051 which forms a pushing part. The receiving plate 201 is provided with a fourth motor 506 which is transmission-connected to the synchronous wheel 504. A gap is left between the synchronous belt 505 and the bottom wall of the groove 2011 for the pushing plate 5051 to move.

[0045] Specifically, a plurality of push plates 5051 are provided, and the plurality of push plates 5051 are evenly spaced and arranged on the outer circumference of the synchronous belt 505 .

[0046] Specifically, the fourth motor 506 is fixedly mounted on the outer wall of the machine body 10 , and a transmission roller 5061 is fixedly mounted on the output shaft of the fourth motor 506 . The transmission roller 5061 passes through the synchronous wheels 504 in the same row, and the transmission roller 5061 is coaxial with and fixed to the synchronous wheels 504 .

[0047] The fourth motor 506 starts to drive the synchronous wheel 504 to rotate, and the synchronous wheel 504 drives the synchronous belt 505 to move forward, so that the synchronous belt 505 drives the push plate 5051 to move, and the push plate 5051 pushes the sludge in the groove 2011 to move forward during the movement, 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.

[0048] 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 in the protection scope of the present invention.

Claims

1. A papermaking sludge dehydration and drying device, comprising a body with a feed inlet and a hot air circulation system, characterized in that: Also includes: A material transport unit is arranged in the machine body, and the material transport unit includes a conveyor, a material receiving plate connected between the material inlet and the conveyor, and a material blocking plate abutting against the top surface of the material receiving plate, the front end of the material receiving plate is inclined downward, and the top surface of the material receiving plate is concave to form a plurality of grooves; A flattening unit is arranged in the machine body and located above the conveyor. The flattening unit has a flattening portion that abuts against the conveyor belt surface of the conveyor. The flattening portion is spaced apart from the conveyor belt surface of the conveyor. The flattening portion reciprocates in a horizontal plane in a direction perpendicular to the front-rear direction.

2. The papermaking sludge dewatering and drying equipment according to claim 1, characterized in that: The paving unit includes rake teeth forming the paving portion and a moving component driving the rake teeth to move back and forth. The rake teeth are arranged in a vertical direction. A plurality of the rake teeth are arranged in a line along the sludge movement direction. The rake teeth are sleeved with scrapers sliding in the vertical direction.

3. The papermaking sludge dewatering and drying equipment according to claim 2, characterized in that: The flattening portion further comprises a base plate fixedly connected to the top ends of the plurality of rake teeth; The mobile assembly comprises: A first motor, disposed on the machine body; A walking roller, which is transmission-connected to the first motor, and the walking roller is horizontally arranged and its axial direction is perpendicular to the front-rear direction; A guide rod, fixedly connected to the inner wall of the machine body, wherein the guide rod is parallel to the walking roller; The walking seat is sleeved on the outer circumference of the walking roller and is screwed with the walking roller. The walking seat is slidably connected to the guide rod and fixed to the top of the base plate.

4. The papermaking sludge dewatering and drying equipment according to claim 3, characterized in that: 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 base plate and the two are slidably adapted in the up and down directions, 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 base plate, the first elastic member has a pre-tightening force that causes the first reset plate to move upward, a trigger block is fixedly provided on the inner wall of the body, and the bottom wall of the trigger block has an inclined surface for squeezing the trigger rod to move downward.

5. The papermaking sludge dewatering and drying equipment according to claim 2, characterized in that: The flattened portion is provided with a plurality of rows, and the flattened portion further comprises a base plate fixedly connected to the top ends of the plurality of rake teeth; The mobile assembly comprises: A hanging plate is fixedly mounted on the inner wall of the machine body; A reciprocating plate is arranged horizontally 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, and the base plate is fixed to the bottom wall of the reciprocating plate; A second reset plate, fixedly mounted on the reciprocating plate; A second elastic member is fixedly disposed 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; A second motor is disposed in the body; The cam abuts against the second reset plate and is drivingly connected to the second motor.

6. The papermaking sludge dewatering and drying equipment according to claim 3 or 5, characterized in that: A telescopic member is fixedly arranged between the base plate and the scraper blade, and the length of the telescopic member is adjustable along the vertical direction.

7. The papermaking sludge dewatering and drying equipment according to claim 1, characterized in that: The papermaking sludge dewatering and drying equipment also includes: The pushing unit is provided with a pushing portion extending into the groove, and the pushing portion pushes the sludge in the groove to move forward.

8. The papermaking sludge dewatering and drying equipment according to claim 7, characterized in that: The pushing unit includes a roller rotatably connected to the groove, a spiral blade forming the pushing portion, and a third motor transmission-connected to the roller, the rotating axis of the roller is parallel to the extension direction of the groove, and the spiral blade is fixed to the outer periphery of the roller.

9. The papermaking sludge dewatering and drying equipment according to claim 8, characterized in that: A material guide plate is fixedly provided at the rear end of the material receiving plate, and the material guide plate has an inclined section located above the material receiving plate and a vertical section fixedly provided at the bottom of the inclined section and corresponding to the groove one by one, the angle between the inclined section and the material receiving plate facing the side of the material receiving plate is an acute angle, the vertical section is perpendicular to the inclination direction of the material receiving plate, and the third motor is arranged in the area wrapped by the vertical section and the inclined section.

10. The papermaking sludge dewatering and drying equipment according to claim 7, 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 around the two synchronous wheels, and a pushing plate forming the pushing part. The receiving plate is provided with a fourth motor transmission-connected to the synchronous wheels.

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