Material dewatering machines for papermaking

Abstract

The present invention discloses a material dewatering machine for papermaking, comprising a frame, a conveying assembly provided in the middle of the frame, an extrusion assembly provided above the conveying assembly, fixed plates provided at both ends of the right side of the frame, an upper and lower cleaning assembly provided between the two fixed plates, and the upper and lower cleaning assemblies are connected by a linkage assembly, and a plurality of groups of knocking assemblies are laterally provided on the upper cleaning assembly; the present invention relates to the technical field of dewatering machines. The material dewatering machine for papermaking can change the knocking force by providing the knocking assembly, and can accurately clean the first filter belt according to actual needs. Increasing the knocking force can more thoroughly remove impurities and stains on the filter belt, improve the cleaning effect, and reduce the risk of accumulation and blockage, which helps to maintain the normal operation of the first filter belt and reduce system failures and downtime caused by accumulation.

Description

Technical Field

[0001] The invention relates to the technical field of dehydrators, in particular to a material dehydrator used for papermaking. Background Art

[0002] In the papermaking industry, the main process flow includes: material preparation, cooking, screening, washing, bleaching, papermaking, etc. Before the finished pulp is put into the papermaking process, a pulp dewatering machine is needed to dehydrate the pulp. Traditional papermaking dewatering technologies include mechanical dehydration and extrusion dehydration. Extrusion dehydration is a method of squeezing water out of the pulp by using a filter belt and an extrusion roller. This technology uses mechanical force to squeeze the pulp so that the water is squeezed out, thereby achieving the purpose of dehydration.

[0003] However, the existing device is unable to effectively clean the filter belt when squeezing and dewatering the pulp. During the long-term use of the filter belt, the squeezed pulp tends to accumulate and adhere to the inner and outer surfaces of the conveyor belt. This causes the pulp to accumulate on the filter belt to form a solid layer, which increases the resistance of the filter belt, causing the conveyor belt to run slower, reducing the dehydration efficiency and production capacity, and may even cause equipment blockage or shutdown. Summary of the Invention

[0004] In view of the deficiencies of the prior art, the present invention provides a material dehydrator for papermaking, which solves the technical problems mentioned in the background technology.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: a material dewatering machine for papermaking, comprising a frame, a conveying assembly is provided in the middle of the frame, an extrusion assembly is provided above the conveying assembly, fixed plates are provided at both ends of the right side of the frame, and two upper and lower cleaning assemblies are provided between the two fixed plates, and the upper and lower cleaning assemblies are connected by a linkage assembly, and multiple groups of knocking assemblies are horizontally provided on the upper cleaning assembly;

[0006] The knocking assembly includes a connecting plate fixedly mounted on the upper cleaning assembly, the upper end of the connecting plate is fixedly connected to a mounting bracket, the inner end of the mounting bracket is rotatably connected to a rotating shaft, the outer wall of the rotating shaft is fixedly connected to a V-shaped plate, the two ends of the V-shaped plate are respectively fixedly connected to a guide rod and a knocking ball, the upper end of the mounting bracket is rotatably connected to a driving shaft, the outer wall of the driving shaft is provided with an adjusting mechanism, and the position of the adjusting mechanism corresponds to the position of the guide rod.

[0007] As a further preferred embodiment of the present technical solution, the extrusion assembly includes a plurality of extrusion rollers rotatably arranged on a frame, and the plurality of extrusion rollers are transmission-connected through a second filter belt, one side of one of the extrusion rollers is provided with a second motor fixed on the frame, and the output end of the second motor is fixedly connected to the extrusion roller.

[0008] As a further preferred embodiment of the present technical solution, the conveying assembly includes a plurality of conveying rollers rotatably mounted on a frame, and the plurality of conveying rollers are transmission-connected through a first filter belt. A first motor fixedly mounted on the frame is provided on one side of the conveying roller, and the output end of the first motor is fixedly connected to the conveying roller.

[0009] As a further preferred embodiment of the present technical solution, one end of the frame is fixedly connected to an arc frame, and a limiting arc groove is provided at the inner end of the arc frame. Positioning plates are fixedly connected to the two ends of the conveying rollers on both sides, and the positioning plates are located on both sides of the first filter belt. The top of the positioning plate is rotatably connected to a splint, and a pulley is provided on the top of the splint, and the specifications of the pulley are adapted to the specifications of the limiting arc groove, and an elastic telescopic rod is provided between the positioning plate and the splint.

[0010] As a further preferred embodiment of the present technical solution, the cleaning assembly includes a fixed rod fixedly mounted on a fixed plate, a support frame fixedly connected to the fixed rod, a scraper is provided on the side of the support frame close to the first filter belt, and a cleaning roller is rotatably connected to the support frame.

[0011] As a further preferred embodiment of the present technical solution, an adjustment groove is provided on the surface of the scraper, and the scraper is slidably connected to the support frame through the adjustment groove. The support frame is provided with a fixing bolt that is compatible with the adjustment groove, and the scraper is fixed to the support frame through the fixing bolt.

[0012] As a further preferred embodiment of the present technical solution, the adjusting mechanism includes an eccentric wheel fixedly mounted on the driving shaft, a first gradient circular block and a second gradient circular block sliding laterally on one side of the eccentric wheel, a limiting plate fixedly connected to the other side of the eccentric wheel, an outer wall of the limiting plate fixedly connected to a vertical rod, a screw rod rotatably connected to the vertical rod, an outer wall of the screw rod is threadedly connected to a connecting block, and the other end of the connecting block is fixedly connected to the second gradient circular block.

[0013] As a further preferred embodiment of the present technical solution, the linkage assembly includes a pulley assembly, a second pulley assembly and two gears. The pulley assembly is used to transmit the upper cleaning roller and the conveying roller, and the second pulley assembly is used to transmit the upper cleaning roller and the drive shaft. The two gears are respectively fixedly mounted on one end of the upper and lower cleaning rollers, and the two gears are engaged with each other.

[0014] Compared with the existing technology, it has the following beneficial effects:

[0015] By providing the arc frame, limiting arc groove, positioning plate, splint, elastic telescopic rod and pulley, the first filter belt can be limited to prevent the first filter belt from deviating, which would cause the entire first filter belt to be unstable, or even get stuck, break and other problems. By effectively preventing the first filter belt from deviating, the stability of the first filter belt can be improved, the failure rate can be reduced, and the first filter belt can be avoided from deviating during operation, which would cause friction and abnormal wear, and accelerate the wear of the first filter belt. Properly preventing the first filter belt from deviating can reduce wear and extend the service life of the first filter belt. By preventing the first filter belt from deviating, the filtering effect can be ensured to be stable and good, and the production efficiency can be improved.

[0016] The contact between the scraper and the first filter belt can effectively remove debris, stains, etc. on the first filter belt to prevent them from accumulating and affecting normal operation. At the same time, the rotation of the cleaning roller can perform a secondary cleaning on the first filter belt, making the cleaning effect of the scraper more uniform and thorough.

[0017] By setting the knocking component, the knocking force can be changed, and the first filter belt can be accurately cleaned according to actual needs. Increasing the knocking force can more thoroughly remove impurities and stains on the filter belt and improve the cleaning effect; reducing the knocking force can gently clean the first filter belt, which is suitable for fragile materials or situations that require light cleaning, and avoids the problem that excessive knocking force may cause increased wear of the first filter belt or even damage the first filter belt. The appropriate knocking force can effectively remove impurities and stains from the first filter belt, reducing the risk of accumulation and blockage, which helps to maintain the normal operation of the first filter belt and reduce system failures and downtime caused by accumulation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 It is a structural schematic diagram of the conveying component in the present invention;

[0020] Figure 3 It is a structural schematic diagram of the conveying roller and the clamping plate in the present invention;

[0021] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0022] Figure 5 Schematic diagram of the structure of the linkage assembly in the present invention;

[0023] Figure 6 It is a structural schematic diagram of the cleaning component in the present invention;

[0024] Figure 7 Schematic diagram of the structure of the knocking component in the present invention;

[0025] Figure 8 It is a structural schematic diagram of the adjustment mechanism in the present invention.

[0026] In the figure: 1, frame; 2, conveying assembly; 3, extrusion assembly; 4, fixing plate; 5, cleaning assembly; 6, linkage assembly; 7, knocking assembly; 21, first motor; 22, conveying roller; 23, first filter belt; 24, arc frame; 25, arc limit groove; 26, positioning plate; 27, clamping plate; 28, elastic telescopic rod; 29, pulley; 31, extrusion roller; 32, second motor; 33, second filter belt; 41, lifting groove; 42, moving seat; 43, threaded rod; 44, spring; 51, fixing rod; 52, support Support frame; 53, scraper; 531, adjustment slot; 532, fixing bolt; 54, cleaning roller; 61, pulley assembly; 62, second pulley assembly; 63, gear; 71, connecting plate; 72, mounting frame; 73, rotating shaft; 74, V-shaped plate; 75, guide rod; 76, knocking ball; 77, driving shaft; 78, adjusting mechanism; 781, eccentric wheel; 782, first gradient circular block; 783, second gradient circular block; 784, limit plate; 785, vertical pole; 786, screw rod; 787, connecting block. DETAILED DESCRIPTION

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] See also Figures 1-8 The present invention provides a technical solution: a material dewatering machine for papermaking, comprising a frame 1, a conveying assembly 2 is provided in the middle position of the frame 1, an extrusion assembly 3 is provided above the conveying assembly 2, fixed plates 4 are provided at both ends of the right side of the frame 1, and two upper and lower cleaning assemblies 5 are provided between the two fixed plates 4, and the upper and lower cleaning assemblies 5 are connected by a linkage assembly 6 for transmission, and multiple groups of knocking assemblies 7 are horizontally provided on the upper cleaning assembly 5. In an embodiment of the present invention, a cleaning assembly 5 and a knocking assembly 7 can also be provided on the extrusion assembly 3 to clean the second filter belt 33.

[0029] See also Figure 1The extrusion assembly 3 includes a plurality of extrusion rollers 31 rotatably arranged on the frame 1, and the plurality of extrusion rollers 31 are transmission-connected through a second filter belt 33. A second motor 32 fixed to the frame 1 is provided on one side of one of the extrusion rollers 31, and the output end of the second motor 32 is fixedly connected to the extrusion roller 31. In an embodiment of the present invention, one of the plurality of extrusion rollers 31 is located at the top, and the rest are arranged side by side at the bottom, and the extrusion roller 31 located at the bottom is installed on the frame 1 through a cross bar. By turning on the second motor 32 to drive the extrusion roller 31 to rotate, the extrusion roller 31 drives the other extrusion rollers 31 to rotate synchronously through the second filter belt 33.

[0030] See also Figure 1 The conveying assembly 2 includes a plurality of conveying rollers 22 rotatably mounted on the frame 1, and the plurality of conveying rollers 22 are transmission-connected through a first filter belt 23. A first motor 21 fixedly mounted on the frame 1 is provided on one side of the conveying roller 22. The output end of the first motor 21 is fixedly connected to the conveying roller 22. In an embodiment of the present invention, the squeezing roller 31 and the conveying roller 22 correspond to each other. By turning on the first motor 21 to drive the conveying roller 22 to rotate, the conveying roller 22 drives the other conveying rollers 22 to rotate synchronously through the first filter belt 23.

[0031] See also Figure 2 、 Figure 3 、 Figure 4The ends of the conveying rollers 22 on both sides are fixedly connected with positioning plates 26, and the positioning plates 26 are located on both sides of the first filter belt 23. The top of the positioning plate 26 is rotatably connected with a clamping plate 27, and a pulley 29 is provided on the top of the clamping plate 27, and the specifications of the pulley 29 are adapted to the specifications of the limiting arc groove 25. An elastic telescopic rod 28 is provided between the positioning plate 26 and the clamping plate 27. In the embodiment of the present invention, the elastic telescopic rod 28 is composed of the following parts: main rod: It is mainly a hollow rod-shaped object, usually made of metal or plastic. The main rod has a certain elasticity and flexibility and can be extended and retracted when needed; spring: The elastic telescopic rod contains one or more springs inside to provide the elasticity and resilience of the telescopic rod; connecting piece: The connecting piece is used to fix the elastic telescopic rod in the required position and connect other components; Under the action of the elastic telescopic rod 28, the clamping plate 27 can be pushed to the first filter belt 23. As the outer end of the belt 23 moves, when the conveying roller 22 drives the clamping plate 27 and the pulley 29 to move toward the side of the arc frame 24, the pulley 29 will slide into the limiting arc groove 25, causing the clamping plate 27 to move toward the side of the first filter belt 23 and compress the elastic telescopic rod 28, so that the clamping plate 27 clamps the first filter belt 23, so that the first filter belt 23 can be limited while being conveyed by the conveying roller 22, thereby preventing the first filter belt 23 from deviating, which will cause the entire first filter belt 23 to be unstable, or even stuck or broken. By effectively preventing the first filter belt 23 from deviating, the stability of the first filter belt 23 can be improved, the failure rate can be reduced, and the first filter belt 23 can be avoided from deviating during operation, thereby avoiding friction and abnormal wear, and accelerating the wear of the first filter belt 23. Properly preventing the first filter belt 23 from deviating can reduce wear and extend the service life of the first filter belt 23. By preventing the first filter belt 23 from deviating, the stable and good filtering effect can be ensured, thereby improving production efficiency.

[0032] See also Figure 5 、 Figure 6 The cleaning assembly 5 includes a fixed rod 51 fixedly mounted on the fixed plate 4, a support frame 52 fixedly connected to the fixed rod 51, a scraper 53 is provided on the side of the support frame 52 close to the first filter belt 23, and a cleaning roller 54 is rotatably connected to the support frame 52;

[0033] The scraper 53 is provided with an adjustment groove 531 on the surface, and is slidably connected to the support frame 52 through the adjustment groove 531. The support frame 52 is provided with a fixing bolt 532 that is compatible with the adjustment groove 531, and the scraper 53 is fixed to the support frame 52 by the fixing bolt 532. In the embodiment of the present invention, the position of the scraper 53 and the first filter belt 23 can be easily adjusted by the provided support frame 52, scraper 53, adjustment groove 531 and fixing bolt 532, thereby improving the cleaning effect. When the first filter belt 23 is running, the scraper 53 can effectively remove debris, stains, etc. on the first filter belt 23 by contacting the first filter belt 23, preventing them from accumulating and affecting normal operation. At the same time, the rotation of the cleaning roller 54 can perform secondary cleaning on the first filter belt 23, so that the cleaning effect of the scraper 53 is more uniform and thorough.

[0034] See also Figure 7 、 Figure 8 The knocking assembly 7 includes a connecting plate 71 fixedly mounted on the upper support frame 52, the upper end of the connecting plate 71 is fixedly connected to a mounting frame 72, the inner end of the mounting frame 72 is rotatably connected to a rotating shaft 73, the outer wall of the rotating shaft 73 is fixedly connected to a V-shaped plate 74, the two ends of the V-shaped plate 74 are respectively fixedly connected to a guide rod 75 and a knocking ball 76, the upper end of the mounting frame 72 is rotatably connected to a driving shaft 77, the outer wall of the driving shaft 77 is provided with an adjusting mechanism 78, and the position of the adjusting mechanism 78 corresponds to the position of the guide rod 75;

[0035] The adjusting mechanism 78 includes an eccentric wheel 781 fixedly mounted on the drive shaft 77, and a first gradient circular block 782 and a second gradient circular block 783 are laterally slidably provided on one side of the eccentric wheel 781, and a limiting plate 784 is fixedly connected to the outer wall of the limiting plate 784, and a vertical rod 785 is fixedly connected to the outer wall of the limiting plate 784, and a screw rod 786 is rotatably connected to the vertical rod 785. The outer wall of the screw rod 786 is threadedly connected to a connecting block 787, and the other end of the connecting block 787 is fixedly connected to the second gradient circular block 783. In the embodiment of the present invention, the first gradient circular block 782 and the second gradient circular block 783 are laterally slidably mounted on the eccentric wheel 781, and a spring is provided inside the eccentric wheel 781 to push the first gradient circular block 782 and the second gradient circular block 783 to move away from the limiting plate 784. At the same time, the eccentric wheel 781, the first gradient circular block 782 and the second gradient circular block 783 are When the first and second graduated circular blocks 782 and 783 are moved toward the limiting plate 784, the guide rod 75 is located on the outer wall of the first and second graduated circular blocks 782 and 783 and slides in contact with them. That is, when the driving shaft 77 and the eccentric wheel 781 are driven to rotate by the linkage assembly 6, the guide rod 75 is located on its outer wall and slides, and the V-shaped plate 74 drives the knocking ball 76 to knock on the first filter belt 23 with greater force. When the guide rod 75 is located on the outer wall of the eccentric wheel 781 and slides in contact with it, the knocking force of the knocking ball 76 on the first filter belt 23 is reduced.

[0036] By setting the knocking component 7, the knocking force can be changed, and the first filter belt 23 can be accurately cleaned according to actual needs. Increasing the knocking force can more thoroughly remove impurities and stains on the filter belt, thereby improving the cleaning effect; reducing the knocking force can gently clean the first filter belt 23, which is suitable for fragile materials or situations that require slight cleaning, and avoids the problem that excessive knocking force may cause increased wear of the first filter belt 23 or even damage the first filter belt 23. Appropriate knocking force can effectively remove impurities and stains from the first filter belt 23, reducing the risk of accumulation and blockage, which helps to maintain the normal operation of the first filter belt 23 and reduce system failures and downtime caused by accumulation.

[0037] See also Figure 2 、 Figure 5The linkage assembly 6 includes a pulley assembly 61, a second pulley assembly 62 and two gears 63. The pulley assembly 61 is used to transmit the upper cleaning roller 54 to the conveying roller 22. The second pulley assembly 62 is used to transmit the upper cleaning roller 54 to the drive shaft 77. The two gears 63 are respectively fixedly mounted on one end of the upper and lower cleaning rollers 54, and the two gears 63 are engaged with each other. In an embodiment of the present invention, when the conveying roller 22 rotates, the pulley assembly 61 and the two gears 63 can drive the cleaning rollers 54 located above and below the first filter belt 23 to rotate, thereby cleaning the first filter belt 23. At the same time, the cleaning roller 54 drives the drive shaft 77 to rotate through the second pulley assembly 62, so that the knocking ball 76 knocks the first filter belt 23.

[0038] The working principle of the material dewatering machine for papermaking is as follows: by evenly placing the pulp onto the first filter belt 23, by turning on the second motor 32 and the first motor 21, the second motor 32 drives the squeezing roller 31 to rotate, the squeezing roller 31 drives the other squeezing rollers 31 to rotate synchronously through the second filter belt 33, the first motor 21 drives the conveying roller 22 to rotate, the conveying roller 22 drives the other conveying rollers 22 to rotate synchronously through the first filter belt 23, so that the first filter belt 23 and the second filter belt 33 cooperate with the squeezing roller 31 and the conveying roller 22 to squeeze and dewater the pulp;

[0039] When the conveying roller 22 drives the clamping plate 27 and the pulley 29 to move toward the side of the arc frame 24, the pulley 29 will slide into the limiting arc groove 25, causing the clamping plate 27 to move toward the side of the first filter belt 23 and compress the elastic telescopic rod 28, so that the clamping plate 27 clamps the first filter belt 23, so that the first filter belt 23 can be limited in position while being conveyed by the conveying roller 22, thereby preventing the first filter belt 23 from deflecting;

[0040] When the conveying roller 22 drives the first filter belt 23 to run, the pulley assembly 61 and the two gears 63 can drive the cleaning roller 54 located above and below the first filter belt 23 to rotate, thereby cleaning the first filter belt 23. At the same time, the cleaning roller 54 drives the driving shaft 77 to rotate through the second pulley assembly 62, so that the knocking ball 76 knocks the first filter belt 23; the scraper 53 can effectively remove debris, stains, etc. on the first filter belt 23 through contact with the first filter belt 23, preventing them from accumulating and affecting normal work. At the same time, the rotation of the cleaning roller 54 can perform a second cleaning of the first filter belt 23, making the cleaning effect of the scraper 53 more uniform. And thoroughly; by rotating the screw rod 786, the connecting block 787 is driven to move laterally. When the first gradient circular block 782 and the second gradient circular block 783 are driven to move toward the side of the limit plate 784, the guide rod 75 is located on the outer wall of the first gradient circular block 782 or the second gradient circular block 783 and slides in contact with it. That is, when the driving shaft 77 and the eccentric wheel 781 are driven to rotate by the linkage assembly 6, the guide rod 75 can be located on its outer wall and slide, and the force of the knocking ball 76 to knock on the first filter belt 23 driven by the V-shaped plate 74 becomes greater. When the guide rod 75 is located on the outer wall of the eccentric wheel 781 and slides in contact with it, the knocking force of the knocking ball 76 on the first filter belt 23 becomes smaller.

[0041] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A material dewatering machine for papermaking, comprising a frame (1), characterized in that: A conveying assembly (2) is provided in the middle of the frame (1), an extrusion assembly (3) is provided above the conveying assembly (2), fixed plates (4) are provided at both ends of the right side of the frame (1), and two upper and lower cleaning assemblies (5) are provided between the two fixed plates (4), and the upper and lower cleaning assemblies (5) are connected in transmission via a linkage assembly (6), and a plurality of knocking assemblies (7) are transversely provided on the upper cleaning assembly (5); The knocking assembly (7) comprises a connecting plate (71) fixedly mounted on the upper cleaning assembly (5); the upper end of the connecting plate (71) is fixedly connected to a mounting frame (72); the inner end of the mounting frame (72) is rotatably connected to a rotating shaft (73); the outer wall of the rotating shaft (73) is fixedly connected to a V-shaped plate (74); the two ends of the V-shaped plate (74) are respectively fixedly connected to a guide rod (75) and a knocking ball (76); the upper end of the mounting frame (72) is rotatably connected to a driving shaft (77); the outer wall of the driving shaft (77) is provided with an adjusting mechanism (78), and the position of the adjusting mechanism (78) corresponds to the position of the guide rod (75); The cleaning assembly (5) comprises a fixing rod (51) fixedly mounted on a fixing plate (4), a support frame (52) fixedly connected to the fixing rod (51), a scraper (53) being provided on a side of the support frame (52) close to the first filter belt (23), and a cleaning roller (54) being rotatably connected to the support frame (52); The adjustment mechanism (78) includes an eccentric wheel (781) fixedly mounted on the drive shaft (77); a first gradient circular block (782) and a second gradient circular block (783) are laterally slidably mounted on one side of the eccentric wheel (781); a limit plate (784) is fixedly connected to the other side of the eccentric wheel (781); a vertical rod (785) is fixedly connected to the outer wall of the limit plate (784); a screw rod (786) is rotatably connected to the vertical rod (785); a connecting block (787) is threadedly connected to the outer wall of the screw rod (786); and the other end of the connecting block (787) is fixedly connected to the second gradient circular block (783); The linkage assembly (6) comprises a pulley assembly (61), a second pulley assembly (62) and two gears (63). The pulley assembly (61) is used to transmit the upper cleaning roller (54) and the conveying roller (22). The second pulley assembly (62) is used to transmit the upper cleaning roller (54) and the driving shaft (77). The two gears (63) are respectively fixedly mounted on one end of the upper and lower cleaning rollers (54), and the two gears (63) are meshed with each other.

2. The material dehydrator for papermaking according to claim 1, characterized in that: The squeezing assembly (3) comprises a plurality of squeezing rollers (31) rotatably arranged on a frame (1), and the plurality of squeezing rollers (31) are transmission-connected via a second filter belt (33), wherein a second motor (32) fixed to the frame (1) is provided on one side of one of the squeezing rollers (31), and an output end of the second motor (32) is fixedly connected to the squeezing roller (31).

3. The material dehydrator for papermaking according to claim 1, characterized in that: The conveying assembly (2) comprises a plurality of conveying rollers (22) rotatably mounted on a frame (1), and the plurality of conveying rollers (22) are connected in transmission via a first filter belt (23); a first motor (21) fixedly mounted on the frame (1) is provided on one side of the conveying roller (22), and an output end of the first motor (21) is fixedly connected to the conveying roller (22).

4. The material dehydrator for papermaking according to claim 3, characterized in that: One end of the frame (1) is fixedly connected to an arc frame (24), and an inner end of the arc frame (24) is provided with a limiting arc groove (25). The two ends of the conveying roller (22) on both sides are fixedly connected to positioning plates (26), and the positioning plates (26) are located on both sides of the first filter belt (23). The top of the positioning plate (26) is rotatably connected to a clamping plate (27), and a pulley (29) is provided on the top of the clamping plate (27), and the specifications of the pulley (29) are mutually adapted to the specifications of the limiting arc groove (25). An elastic telescopic rod (28) is provided between the positioning plate (26) and the clamping plate (27).

5. The material dehydrator for papermaking according to claim 4, characterized in that: An adjustment groove (531) is provided on the surface of the scraper (53), and the scraper (53) is slidably connected to the support frame (52) through the adjustment groove (531); a fixing bolt (532) adapted to the adjustment groove (531) is provided on the support frame (52), and the scraper (53) is fixed to the support frame (52) through the fixing bolt (532).

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