Dehydration device and method for corrugated paper production

Abstract

The invention relates to the technical field of paper processing, in particular to a dehydration device and method for corrugated paper production, and the dehydration device for corrugated paper production comprises a fixing frame, a compression roller set and the like; a compression roller group is mounted on the rear side of the fixing frame; the compression roller group consists of two compression rollers which are bilaterally symmetrical; a motor is mounted on the compression roller group and drives the compression rollers to rotate; an external industrial camera module is arranged on the front side of the fixing frame; and detecting a paper pulp ball on the wet paper sheet through the external industrial camera module. In the process of filtering water of the wet paper sheet through the screen cloth, the upper surface of the wet paper sheet is synchronously subjected to water absorption through the blanket, and the overall water content of the wet paper sheet is reduced, so that the frequency of a subsequent wet paper sheet pressing procedure is reduced, the production efficiency is improved, and in the process of water absorption of the wet paper sheet, the water content of the wet paper sheet is reduced. The paper pulp balls on the wet paper sheets are sucked and separated through the suction plate and the blanket, the paper pulp balls are prevented from entering the subsequent squeezing procedure, and the paper quality is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of paper processing, and in particular to a dehydration device and method for corrugated paper production. Background Art

[0002] In the corrugated paper production process, it is usually necessary to spray the pulp for making paper on the mesh. Through the action of gravity, the moisture in the pulp flows downward through the gaps in the mesh, while the pulp itself remains on the surface of the mesh. This method uses the mesh to achieve the initial separation of most of the moisture, forming a wet paper sheet on the surface of the mesh. Subsequently, the wet paper sheet is transferred by the mesh to the pressing roller for a pressing process to further remove the moisture and initially form the wet paper sheet. The moisture in the pulp on the side in contact with the mesh can be separated faster, but the moisture on the upper surface of the pulp is difficult to discharge quickly. Therefore, when the wet paper sheet enters the subsequent pressing process, it still contains a high moisture content, which requires multiple pressings to effectively remove excess moisture, thereby reducing production efficiency.

[0003] During the pulp preparation process, some fibers are not completely decomposed or foreign matter is mixed into the pulp. These problems will cause the fibers to clump together and form pulp clumps. These pulp clumps not only affect the smoothness and appearance of the paper, but also reduce the overall strength of the paper, thus affecting product quality. Summary of the invention

[0004] In order to overcome the shortcomings of the existing corrugated paper production process, such as low efficiency in the initial water separation and pressing steps, and the possible presence of undecomposed fibers or foreign matter in the pulp affecting the quality and strength of the final product, the present invention provides a dehydration device and method for corrugated paper production.

[0005] The technical scheme is as follows: a dewatering device for corrugated paper production, comprising a fixed frame and a pressure roller group; a mesh conveyor is arranged on the fixed frame; the mesh conveyor is used to convey wet paper sheets; a pressure roller group is installed on the rear side of the fixed frame; the pressure roller group is composed of two left-right symmetrical pressure rollers; a motor is installed on the pressure roller group, and the pressure roller is driven to rotate by the motor; an external industrial camera module is arranged on the front side of the fixed frame; the pulp mass located on the wet paper sheet is detected by the external industrial camera module; it also includes a conveying roller group, a blanket, a suction plate and a drying system; the conveying roller group is rotatably connected to the fixed frame; the conveying roller group is composed of a first rotating roller, a second rotating roller, and a third rotating roller. , the fourth roller and the fifth roller; a motor is installed on the first roller; the first roller is driven to rotate by the motor; a blanket for absorbing moisture on the wet paper sheets is circulated on the outer side of the conveying roller group; the blanket is woven from synthetic fibers, and has good water absorption and elasticity; a suction plate for absorbing pulp clumps on the wet paper sheets is fixed on the fixed frame, and the suction plate is connected with an external suction device; a number of suction heads are connected to the lower side of the suction plate, and an electric-controlled valve is arranged between each suction head and the suction plate; the suction head is in contact with the inner side of the blanket, and the blanket and the suction head are in sliding contact; a drying system for drying the blanket is installed on the fixed frame; the blanket runs through the drying system.

[0006] Furthermore, it also includes a shrinking roller; a shrinking roller for squeezing and shrinking the blanket is rotatably connected to the fixed frame; a plurality of protrusions are arranged on the shrinking roller; the shrinking roller is located between the second roller and the third roller; the length of the shrinking roller is smaller than the width of the blanket when it is unfolded; limiting rings are arranged on both sides of the shrinking roller, and the blanket is located between the two limiting rings; two threads are arranged on the second roller and the third roller, and the spiral directions of the two threads are opposite, and they are arranged symmetrically on the left and right.

[0007] Furthermore, it also includes a collecting box; a collecting box for collecting pulp balls is fixedly connected to the fixed frame; the collecting box is located between the felt and the wet paper sheets, and the collecting box is located below the felt between the shrink roller and the third rotating roller; the collecting box is connected to the external collecting device.

[0008] Furthermore, it also includes a pulping pipe; a fixed frame is fixedly connected with the pulping pipe for replenishing pulp; the pulping pipe is connected with an external pulp storage device; the pulping pipe is connected with a plurality of pulp outlet holes, and an electric control valve is arranged between each pulp outlet hole and the pulping pipe; the pulping pipe is located between the wet paper sheet and the felt, and the pulping pipe is located on the front side of the collecting box.

[0009] Furthermore, the collecting box is arranged to be tilted downward near the pressing roller group, and the lower side of the collecting box is arranged to be in contact with the upper surface of the wet paper sheet.

[0010] Furthermore, the drying system includes a drying box; a drying box for reducing the moisture content of the blanket is arranged on a fixed frame; the front side of the drying box is arranged as an air inlet chamber, which is connected to an external air supply device; the rear side of the drying box is arranged as an exhaust chamber, which is connected to an external air collecting device; the middle part of the drying box is arranged as a drying chamber; the drying chamber is respectively connected to the air inlet chamber and the exhaust chamber; the part of the blanket located between the third roller and the fourth roller passes through the drying chamber.

[0011] Furthermore, the drying system also includes a guide plate; a guide plate for assisting in separating the pulp mass from the felt is fixedly connected to the inner side of the drying chamber; and the guide plate is in an arc shape.

[0012] Furthermore, the drying system also includes an electric roller; the left inner wall and the right inner wall of the drying chamber are rotatably connected to a plurality of electric rollers for stretching the blanket; the left and right sides of the blanket are respectively located between the two electric rollers on the corresponding sides; the electric roller is slidably connected to the blanket.

[0013] Furthermore, the drying system also includes a brush plate; a brush plate for cleaning pulp residue on the surface of the felt is fixedly connected in the drying chamber; the brush plate is located on the rear side of the felt; bristles are arranged on the brush plate; and the bristles are in contact with the surface of the felt.

[0014] A dehydration method for corrugated paper production comprises the following working steps: S1: Spraying pulp, spraying the pulp evenly on the mesh conveyor through an external feeding device, controlling the mesh conveyor to drive the pulp to be transported backward, and separating the water in the pulp through the mesh conveyor; S2: water absorption, absorbing the water on the surface of the wet paper sheet through the felt, reducing the overall water content of the wet paper sheet, and separating the pulp mass on the wet paper sheet through the suction plate; S3: replenishing pulp, replenishing pulp to the thinned part of the wet paper sheet through the replenishing pipe to ensure the thickness and quality of the wet paper sheet; S4: Scraping and leveling: Scraping and leveling the upper surface of the wet paper sheet through the lower side of the collecting box to make the pulp thickness of each part of the wet paper sheet consistent; S5: Pressing: The wet paper sheets are driven into between the pressing rollers through the mesh cloth, and the wet paper sheets are pressed by the pressing rollers to further squeeze out the water in the wet paper sheets.

[0015] Beneficial effects of the present invention: Compared with conventional paper dewatering devices, in the process of filtering the wet paper sheets through the mesh, the upper surface of the wet paper sheets is simultaneously absorbed by the felt to reduce the overall moisture content of the wet paper sheets, thereby reducing the number of subsequent pressing processes for the wet paper sheets and improving production efficiency. In addition, in the process of absorbing water from the wet paper sheets, the pulp clumps on the wet paper sheets are absorbed and separated by the suction plate and the felt to prevent the pulp clumps from entering the subsequent pressing process, thereby ensuring the quality of the paper. The pleated part increases the adhesion between the felt and the pulp mass, thereby preventing the pulp mass from falling from the felt to the wet paper sheet, thus ensuring the production quality of paper; The falling pulp mass is collected by the collecting box to prevent the pulp mass from falling back onto the wet paper sheet. The dripping water is collected by the collecting box to prevent it from falling back onto the wet paper sheet, thereby ensuring that the moisture content on the wet paper sheet is not affected. The felt moved into the drying chamber is dried by high-temperature gas to reduce the moisture content of the felt, thereby ensuring that the felt can continue to absorb water. At the same time, the high-temperature airflow is guided downward by the arc of the guide plate to assist in separating the pulp mass from the lower surface of the felt, ensuring that the pulp mass falls into the collection box, thereby facilitating the collection of the pulp mass. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the dehydration device for corrugated paper production of the present invention; Figure 2 is a cross-sectional view of a fixing frame of the present invention; Figure 3 It is a partial side view of the present invention; Figure 4 It is a schematic diagram of the combined three-dimensional structure of the suction plate, the shrinking roller and the collecting box of the present invention; Figure 5 It is a schematic diagram of the three-dimensional structure of the conveying roller group, the blanket and the shrinking roller combination of the present invention; Figure 6 is a cross-sectional view of a drying system of the present invention; Figure 7 It is a side view of the drying system of the present invention; Figure 8 It is a schematic diagram of the three-dimensional structure of the drying box, electric roller and brush plate combination of the present invention.

[0017] Explanation of the reference numerals: 1-fixed frame, 2-transfer roller group, 3-mesh, 4-wet paper sheet, 5-pressing roller group, 6-conveying roller group, 6001-first roller, 6002-second roller, 6003-third roller, 6004-fourth roller, 6005-fifth roller, 7-blanket, 7001-pleated part, 201-suction plate, 20101-suction head, 202-shrinking roller, 20201-protrusion, 20202-limiting ring, 203-collecting box, 204-slurry feeding pipe, 301-drying box, 30101-air inlet chamber, 30102-exhaust chamber, 30103-drying chamber, 302-guide plate, 303-electric roller, 304-brush plate. DETAILED DESCRIPTION

[0018] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0019] Example 1 like Figure 1-Figure 5 As shown, a dewatering device and method for corrugated paper production includes a fixed frame 1 and a pressure roller group 5; a mesh conveyor is arranged on the fixed frame 1; the mesh conveyor is used to convey wet paper sheets 4; the mesh conveyor consists of a conveying roller group 2 and a mesh 3; the conveying roller group 2 consists of six conveying rollers; a motor is installed on the conveying roller group 2, and the conveying rollers are driven to rotate by the motor; a mesh 3 is circulated and conveyed on the outer side of the conveying roller group 2; the mesh 3 is used to support the wet paper sheets 4; the mesh 3 is woven from synthetic fibers, and the mesh 3 is water-permeable; a pressure roller group 5 is installed on the rear side of the fixed frame 1; the pressure roller group 5 consists of two left-right symmetrical pressure rollers; a motor is installed on the pressure roller group 5, and the pressure rollers are driven to rotate by the motor; an external industrial camera module is arranged on the front side of the fixed frame 1; the pulp mass on the wet paper sheets 4 is detected by the external industrial camera module; It also includes a conveying roller group 6, a blanket 7, a suction plate 201 and a drying system; the conveying roller group 6 is rotatably connected to the fixed frame 1; the conveying roller group 6 consists of a first rotating roller 6001, a second rotating roller 6002, a third rotating roller 6003, a fourth rotating roller 6004 and a fifth rotating roller 6005; a motor is installed on the first rotating roller 6001; the first rotating roller 6001 is driven to rotate by the motor; a blanket 7 is circulated on the outer side of the conveying roller group 6; the blanket 7 is woven from synthetic fibers, and has good Good water absorption and elasticity; a suction plate 201 is fixedly connected to the fixed frame 1, and the suction plate 201 is connected to an external suction device; a plurality of suction heads 20101 are connected to the lower side of the suction plate 201, and an electric-controlled valve is arranged between each suction head 20101 and the suction plate 201; the suction head 20101 is in contact with the inner side of the blanket 7, and the blanket 7 is in sliding contact with the suction head 20101; a drying system is installed on the fixed frame 1; the blanket 7 runs through the drying system; the moisture on the blanket 7 is dried by the drying system.

[0020] It also includes a shrinking roller 202; the shrinking roller 202 is rotatably connected to the fixed frame 1; a plurality of protrusions 20201 are arranged on the shrinking roller 202; the shrinking roller 202 is located between the second roller 6002 and the third roller 6003; the length of the shrinking roller 202 is smaller than the width of the blanket 7 when it is unfolded; limit rings 20202 are arranged on both sides of the shrinking roller 202, and the blanket 7 is located between the two limit rings 20202; two threads are arranged on the second roller 6002 and the third roller 6003, and the spiral directions of the two threads are opposite, and they are arranged symmetrically on the left and right.

[0021] It also includes a collecting box 203; the collecting box 203 is fixedly connected to the middle of the fixing frame 1; the collecting box 203 is located between the felt 7 and the wet paper sheet 4, and the collecting box 203 is located below the felt 7 between the shrinking roller 202 and the third rotating roller 6003; the collecting box 203 is connected to the external collecting device.

[0022] It also includes a pulping pipe 204; the fixed frame 1 is fixedly connected to the pulping pipe 204; the pulping pipe 204 is connected to an external pulp storage device; the pulping pipe 204 is connected to a plurality of pulp outlet holes, and an electric control valve is provided between each pulp outlet hole and the pulping pipe 204; the pulping pipe 204 is located between the wet paper sheet 4 and the felt 7, and the pulping pipe 204 is located on the front side of the collecting box 203.

[0023] Furthermore, in order to ensure that the pulp thickness of each part of the wet paper sheet 4 remains consistent and improve the production quality of paper, the collecting box 203 is arranged to be tilted downward near the pressing roller group 5, and the lower side of the collecting box 203 is arranged to fit the upper surface of the wet paper sheet 4.

[0024] The following is a detailed description of the dehydration process of corrugated paper during production: First, the prepared pulp is evenly sprayed on the mesh cloth 3 on the upper side through an external feeding device, and the motor on the conveying roller group 2 is controlled to drive the conveying roller to rotate. As viewed from right to left, the conveying roller is rotated clockwise, thereby driving the mesh cloth 3 on the upper side and the pulp on its surface to move backward. In this process, the moisture in the pulp is discharged downward through the pores of the mesh cloth 3, thereby forming a wet paper sheet 4 on the mesh cloth 3. As the mesh cloth 3 drives the wet paper sheet 4 to move backward, the wet paper sheet 4 passes through the pressing roller group 5, and the wet paper sheet 4 is pressed by the left and right pressing rollers, so that the remaining moisture in the wet paper sheet 4 is squeezed out, thereby improving the strength and dryness of the paper. In this process, since the lower side of the wet paper sheet 4 is directly attached to the mesh cloth 3, the lower side of the wet paper sheet 4 The moisture in the wet paper sheet 4 is easier to be discharged than the moisture in the upper layer of the wet paper sheet 4, so that the upper layer of the wet paper sheet 4 has more moisture. In this way, the moisture content of the wet paper sheet 4 is relatively large. When the pressing operation is subsequently performed through the pressing roller group 5, in order to ensure that the moisture content of the paper is lower, multiple pressing operations are required, which increases the time required for the pressing process and reduces the production efficiency of the paper. On this basis, due to the fact that some fibers are not completely decomposed or because foreign matter in the pulp is not effectively removed, some pulp fibers are aggregated, and then a pulp mass is formed on the wet paper sheet 4. As the pulp mass enters the subsequent pressing process, the pulp mass will affect the smoothness and appearance of the paper and cause a decrease in the strength of the paper, thereby reducing the quality of the paper.

[0025] To this end, in the process of the mesh 3 driving the wet paper sheet 4 to move backward, the felt 7 located within the range of the first roller 6001 and the second roller 6002 is in contact with the upper surface of the wet paper sheet 4, and the motor on the first roller 6001 is controlled to drive the first roller 6001 to rotate. Based on the view from right to left, the first roller 6001 is rotated counterclockwise to drive the felt 7 to transmit counterclockwise. The second roller 6002, the third roller 6003, the fourth roller 6004 and the fifth roller 6005 are synchronously rotated counterclockwise to move the felt 7 located within the range of the first roller 6001 and the second roller 6002 from front to back. By controlling the felt 7 to rotate backward The moving speed is consistent with the speed at which the mesh 3 moves backward, so that the felt 7 located within the range of the first rotating roller 6001 and the second rotating roller 6002 is continuously in contact with the surface of the wet paper sheet 4 on the mesh 3, so that the moisture of the upper layer of the wet paper sheet 4 is absorbed by the felt 7, so that the moisture content of the wet paper sheet 4 is further reduced, thereby reducing the number of subsequent pressing of the wet paper sheet 4, thereby reducing the time required for the pressing process and improving the production efficiency of paper. On this basis, in the process of the mesh 3 continuously transmitting the wet paper sheet 4 backward, the external industrial camera module arranged on the front side of the fixed frame 1 is used to detect the wet paper sheet 4 to observe whether there is a There is a pulp mass, and the position of the pulp mass is observed. When the external industrial camera module detects that there is a pulp mass on the wet paper sheet 4, the computer control program controls the external suction device to delay the start, so that the external suction device starts to suck air from the suction plate 201. At this time, the pulp mass moves just below the suction plate 201, and the electric control valve on the suction head 20101 at the corresponding position of the pulp mass is controlled to open, so that the pulp mass is adsorbed on the felt 7 through the suction head 20101. As the felt 7 continues to move backward, the felt 7 within the range of the second roller 6002 to the third roller 6003 gradually separates from the wet paper sheet 4, so that the pulp mass is driven backward through the felt 7. The wet paper sheet 4 is moved to separate the pulp mass from the wet paper sheet 4, so that the pulp mass is prevented from entering the subsequent pressing process, thereby ensuring that the quality of the paper is not disturbed by the pulp mass. Compared with the conventional paper dewatering device, in the process of filtering the wet paper sheet 4 through the mesh 3, the upper surface of the wet paper sheet 4 is simultaneously absorbed by the felt 7 to reduce the overall moisture content of the wet paper sheet 4, thereby reducing the number of subsequent pressing processes for the wet paper sheet 4 and improving production efficiency. In addition, in the process of absorbing water from the wet paper sheet 4, the pulp mass on the wet paper sheet 4 is absorbed and separated by the suction plate 201 and the felt 7 to prevent the pulp mass from entering the subsequent pressing process, thereby ensuring the quality of the paper.

[0026] In the process of the felt 7 driving the pulp mass to move backward, as the felt 7 at the position corresponding to the suction plate 201 gradually moves backward, the pulp mass gradually loses the suction force brought by the suction plate 201. At this time, there is still adhesion between the pulp mass and the felt 7. However, as the felt 7 shakes during the transmission process, the pulp mass may fall off the felt 7, causing the pulp mass to fall on the wet paper sheet 4 again. To avoid the above situation, a contraction roller 202 is provided between the second rotating roller 6002 and the third rotating roller 6003. When the felt 7 moves backward to between the second rotating roller 6002 and the contraction roller 202, The length of the shrinking roller 202 is smaller than the width of the felt 7 when it is unfolded, so that when the felt 7 passes through the shrinking roller 202, the felt 7 as a whole converges to the middle, and the protruding portion 20201 fits with the felt 7, so that the felt 7 between the second roller 6002 and the third roller 6003 overlaps with each other to form a folded portion 7001, so that the pulp mass on the felt 7 is embedded in the folded portion 7001, and the adhesion between the felt 7 and the pulp mass is increased by the folded portion 7001, so as to prevent the pulp mass from falling from the felt 7 to the wet paper sheet 4, thereby ensuring the production quality of the paper. On this basis, in order to avoid the second roller The overlapping of the blanket 7 between the roller 6002 and the shrinking roller 202 affects the flatness of the blanket 7 within the range from the first roller 6001 to the second roller 6002. By setting two left-right symmetrical threads on the second roller 6002, when the blanket 7 moves backward to between the second roller 6002 and the shrinking roller 202, the second roller 6002 rotates counterclockwise from right to left, thereby driving the two threads on the second roller 6002 to rotate counterclockwise. In this way, the left half of the blanket 7 is continuously stretched to the left by rotating the thread on the left side of the second roller 6002, and the left half of the blanket 7 is continuously stretched to the left by rotating the thread on the right side of the second roller 6002. Rotate so that the right half of the felt 7 is continuously stretched to the right, so that the left and right ends of the portion where the felt 7 contacts the second roller 6002 are stretched, so that the portion where the felt 7 contacts the second roller 6002 is always in a flat state, thereby ensuring the flatness of the felt 7 within the range from the first roller 6001 to the second roller 6002, and improving the fit between the felt 7 and the wet paper sheet 4 within the range from the first roller 6001 to the second roller 6002. It is explained here that the left and right sides of the felt 7 are limited by the limiting rings 20202 on the left and right sides of the shrink roller 202, so as to ensure that the felt 7 can smoothly converge to the middle.

[0027] When the felt 7 passes between the shrinking roller 202 and the third roller 6003, the third roller 6003 rotates counterclockwise as viewed from right to left. At this time, the two threads on the third roller 6003 stretch the left and right ends of the portion where the felt 7 contacts the third roller 6003, so that the folded portion 7001 of the felt 7 gradually unfolds, so that the felt 7 is restored to a flat state. At this time, the adhesion between the felt 7 and the pulp mass is reduced, and the pulp mass is easy to fall from the felt 7. The falling pulp mass is collected by the collecting box 203, so as to prevent the pulp mass from falling back onto the wet paper sheet 4. In addition, when the folded portion 7001 contacts the shrinking roller 202, more water is absorbed in the folded portion 7001, and pressure is applied to the overlapping folded portions 7001 by the shrinking roller 202, so that the folded portion 7001 The excess water in the pleated portion 7001 is squeezed out, and the excess water drips downward. The water dripping downward is collected by the collecting box 203 to avoid falling back onto the wet paper sheet 4, thereby ensuring that the moisture content of the wet paper sheet 4 is not affected. At the same time, the excess water in the pleated portion 7001 is squeezed out by the shrinking roller 202, thereby reducing the moisture content of the felt 7, thereby reducing the workload of subsequent drying of the felt 7, and improving the drying efficiency of the felt 7. In addition, by setting the collection range of the collecting box 203 to below the felt 7 between the shrinking roller 202 and the second rotating roller 6002, it is convenient to collect water droplets or pulp clumps dripping on the felt 7 within the range from the shrinking roller 202 to the second rotating roller 6002. At the same time, the water and pulp clumps in the collecting box 203 are collected and discharged by an external collecting device, thereby ensuring continuous collection by the collecting box 203.

[0028] On this basis, after the pulp mass on the wet paper sheet 4 is separated by the felt 7, the thickness of the corresponding position of the wet paper sheet 4 will inevitably become thinner. Therefore, it is necessary to supplement the pulp at the position of the pulp mass on the wet paper sheet 4 to ensure the quality of the paper. For this purpose, after the mesh 3 drives the wet paper sheet 4 backward through the second rotating roller 6002, the pulp is transported to the pulp replenishing pipe 204 through the external pulp storage device. At the same time, the electric control valve on the pulp outlet corresponding to the position of the pulp mass is controlled to open, so that the pulp is sprayed on the position of the pulp mass on the wet paper sheet 4. In this way, the thickness of the position of the pulp mass on the wet paper sheet 4 is prevented from becoming thinner. Then the mesh 3 drives the wet paper sheet 4 to continue to move backward. Since the lower side of the collecting box 203 is arranged to fit with the upper surface of the wet paper sheet 4, the upper surface of the wet paper sheet 4 that has been supplemented with pulp is scraped flat by the lower side of the collecting box 203, so that the pulp thickness of each part of the wet paper sheet 4 is kept consistent, thereby ensuring the production quality of the paper.

[0029] Example 2 On the basis of Example 1, Figure 2 and Figure 6-Figure 8As shown, the drying system includes a drying box 301; the drying box 301 is arranged on the fixed frame 1; the front side of the drying box 301 is arranged as an air inlet chamber 30101, and the air inlet chamber 30101 is connected to the external air supply device; the rear side of the drying box 301 is arranged as an exhaust chamber 30102, and the exhaust chamber 30102 is connected to the external air collecting device; the middle part of the drying box 301 is arranged as a drying chamber 30103; the drying chamber 30103 is respectively connected to the air inlet chamber 30101 and the exhaust chamber 30102; the part of the blanket 7 located between the third roller 6003 and the fourth roller 6004 passes through the drying chamber 30103.

[0030] The drying system further includes a guide plate 302 ; the guide plate 302 is fixedly connected to the lower inner portion of the drying chamber 30103 ; the guide plate 302 is in an arc shape.

[0031] The drying system also includes an electric roller 303; the left inner wall and the right inner wall of the drying chamber 30103 are both rotatably connected to two front-to-back symmetrical electric rollers 303; the left and right sides of the blanket 7 are respectively located between the two electric rollers 303 on the corresponding sides; the electric roller 303 is slidably connected to the blanket 7.

[0032] The drying system also includes a brush plate 304; the brush plate 304 is fixedly connected in the drying chamber 30103; the brush plate 304 is located at the rear side of the blanket 7; the brush plate 304 is provided with bristles; and the bristles are in contact with the surface of the blanket 7.

[0033] When the blanket 7 continuously absorbs moisture from the wet paper sheet 4, the moisture content of the blanket 7 itself increases, which causes the water absorption capacity of the blanket 7 to decrease. Therefore, it is necessary to dry the blanket 7 that has absorbed moisture. For this reason, when the blanket 7 moves to the range between the third roller 6003 and the fourth roller 6004, the blanket 7 is located in the drying chamber 30103, and a high-temperature airflow is transported to the air inlet chamber 30101 through an external air supply device, so that the airflow enters the drying chamber 30103, so that the high-temperature airflow blows toward the wet blanket 7, and the moisture in the blanket 7 is taken away by the high-temperature airflow. Then the high-temperature airflow converges into the exhaust chamber 30102, and is finally discharged to the external air collecting device. In this way, the blanket 7 moved into the drying chamber 30103 is dried by the high-temperature gas, thereby reducing the moisture content of the blanket 7. The moisture content of the low blanket 7 is reduced, thereby ensuring that the blanket 7 can continuously absorb water. On this basis, when the high-temperature gas in the air inlet chamber 30101 is blown into the drying chamber 30103, a part of the high-temperature airflow on the lower side of the air inlet chamber 30101 is simultaneously blown toward the guide plate 302. Since the guide plate 302 is in an arc shape, the high-temperature airflow is guided to flow downward by the arc of the guide plate 302, so that a part of the high-temperature airflow on the lower side of the air inlet chamber 30101 is blown downward toward the blanket 7 between the shrink roller 202 and the third rotating roller 6003. In this way, the high-temperature airflow passes through the gaps between the blankets 7 and blows toward the pulp mass on the lower surface of the blanket 7, thereby separating the pulp mass from the lower surface of the blanket 7 with the assistance of the high-temperature airflow, ensuring that the pulp mass falls into the collecting box 203, thereby facilitating the collection of the pulp mass.

[0034] On this basis, when the high-temperature airflow blows toward the wet blanket 7 in the drying chamber 30103, the left edge and the right edge of the blanket 7 are respectively located between two adjacent electric rollers 303. Taking the two electric rollers 303 located on the right edge of the blanket 7 as an example, based on looking from top to bottom, the electric roller 303 on the front side of the right edge of the blanket 7 is controlled to rotate clockwise, and the electric roller 303 on the rear side of the right edge of the blanket 7 is controlled to rotate counterclockwise. The two electric rollers 303 on the right edge of the blanket 7 jointly drive the right edge of the blanket 7 to move to the right. Similarly, the two electric rollers 303 on the left edge of the blanket 7 jointly drive the right edge of the blanket 7 to move to the right. The left edge of the moving felt 7 moves to the left, so that the edge of the felt 7 is stretched to the left and right sides respectively, and the felt 7 is stretched in the left and right directions by the electric roller 303, thereby increasing the pores between the felts 7, thereby increasing the speed of the high-temperature airflow passing through the felt 7, and further improving the drying effect of the high-temperature airflow on the felt 7. Furthermore, at this time, the bristles on the brush plate 304 are used to clean the surface of the stretched felt 7, so that the pulp residue on the surface of the felt 7 is cleaned, and the surface of the felt 7 is kept clean. At the same time, the cleaned pulp residue is driven by the high-temperature airflow to flow into the exhaust chamber 30102, and finally discharged to the external air collecting device.

[0035] A dehydration method for corrugated paper production comprises the following working steps: S1: spraying pulp, spraying the pulp evenly on the mesh 3 through an external feeding device, controlling the mesh 3 to drive the pulp to be transferred backward, and separating the water in the pulp through the mesh 3; S2: water absorption, the felt 7 absorbs the water on the upper surface of the wet paper sheet 4 to reduce the overall water content of the wet paper sheet 4, and the suction plate 201 is used to separate the pulp mass on the wet paper sheet 4; S3: replenishing pulp, replenishing pulp to the thinned part of the wet paper sheet 4 through the replenishing pipe 204 to ensure the thickness and quality of the wet paper sheet 4; S4: Scraping and leveling: Scraping and leveling the upper surface of the wet paper sheet 4 through the lower side of the collecting box 203 to make the pulp thickness of each part of the wet paper sheet 4 consistent; S5: Pressing: The wet paper sheet 4 is driven by the mesh 3 to enter between the pressing rollers, and the wet paper sheet 4 is pressed by the pressing rollers to further squeeze out the water in the wet paper sheet 4.

[0036] Although the present invention is described in detail with reference to the above embodiments, it is obvious to those skilled in the art through this disclosure that various changes or modifications may be made to the present invention without departing from the principle and spirit of the present invention defined by the claims. Therefore, the detailed description of the embodiments of the present disclosure is only used to explain, not to limit the present invention, but the scope of protection is limited by the content of the claims.

Claims

1. A dewatering device for corrugated paper production, comprising a fixed frame (1) and a pressure roller group (5); a mesh conveyor is arranged on the fixed frame (1); the mesh conveyor is used to convey wet paper sheets (4); a pressure roller group (5) is installed on the rear side of the fixed frame (1); the pressure roller group (5) is composed of two left-right symmetrical pressure rollers; a motor is installed on the pressure roller group (5), and the pressure rollers are driven to rotate by the motor; an external industrial camera module is arranged on the front side of the fixed frame (1); pulp clumps on the wet paper sheets (4) are detected by the external industrial camera module; the device is characterized in that: The invention also comprises a conveying roller group (6), a blanket (7), a suction plate (201) and a drying system; the conveying roller group (6) is rotatably connected to the fixed frame (1); the conveying roller group (6) is composed of a first rotating roller (6001), a second rotating roller (6002), a third rotating roller (6003), a fourth rotating roller (6004) and a fifth rotating roller (6005); a motor is installed on the first rotating roller (6001); the first rotating roller (6001) is driven to rotate by the motor; a blanket (7) for absorbing moisture on the wet paper sheet (4) is circulated on the outer side of the conveying roller group (6); the blanket (7) is woven from synthetic fibers, The blanket (7) has good water absorption and elasticity; a suction plate (201) for absorbing pulp lumps on wet paper sheets (4) is fixedly connected to the fixed frame (1), and the suction plate (201) is connected to an external suction device; a plurality of suction heads (20101) are connected to the lower side of the suction plate (201), and an electric control valve is provided between each suction head (20101) and the suction plate (201); the suction head (20101) is in contact with the inner side of the blanket (7), and the blanket (7) and the suction head (20101) are in sliding contact; a drying system for drying the blanket (7) is installed on the fixed frame (1); and the blanket (7) runs through the drying system.

2. A dehydration device for corrugated paper production according to claim 1, characterized in that: The invention also comprises a shrinking roller (202); the shrinking roller (202) for squeezing and shrinking the blanket (7) is rotatably connected to the fixed frame (1); a plurality of protrusions (20201) are arranged on the shrinking roller (202); the shrinking roller (202) is located between the second rotating roller (6002) and the third rotating roller (6003); the length of the shrinking roller (202) is smaller than the width of the blanket (7) when it is unfolded; limit rings (20202) are arranged on both the left and right sides of the shrinking roller (202), and the blanket (7) is located between the two limit rings (20202); and two threads are arranged on both the second rotating roller (6002) and the third rotating roller (6003), and the spiral directions of the two threads are opposite and they are arranged symmetrically on the left and right sides.

3. A dehydration device for corrugated paper production according to claim 2, characterized in that: It also includes a collecting box (203); the collecting box (203) for collecting pulp lumps is fixedly connected to the fixed frame (1); the collecting box (203) is located between the felt (7) and the wet paper sheet (4), and the collecting box (203) is located below the felt (7) between the shrinking roller (202) and the third rotating roller (6003); the collecting box (203) is connected to an external collecting device.

4. A dehydration device for corrugated paper production according to claim 3, characterized in that: The invention also comprises a pulp replenishing pipe (204); the fixed frame (1) is fixedly connected with a pulp replenishing pipe (204) for replenishing paper pulp; the pulp replenishing pipe (204) is connected to an external paper pulp storage device; the pulp replenishing pipe (204) is connected to a plurality of pulp outlet holes, and an electric control valve is provided between each pulp outlet hole and the pulp replenishing pipe (204); the pulp replenishing pipe (204) is located between the wet paper sheet (4) and the felt (7), and the pulp replenishing pipe (204) is located at the front side of the collecting box (203).

5. A dehydration device for corrugated paper production according to claim 4, characterized in that: The collecting box (203) is arranged to be tilted downwards on the side close to the pressing roller group (5), and the lower side of the collecting box (203) is arranged to be in contact with the upper surface of the wet paper sheet (4).

6. A dehydration device for corrugated paper production according to claim 4, characterized in that: The drying system comprises a drying box (301); a drying box (301) for reducing the moisture content of a blanket (7) is arranged on a fixed frame (1); the front side of the drying box (301) is arranged as an air inlet chamber (30101), and the air inlet chamber (30101) is connected to an external air supply device; the rear side of the drying box (301) is arranged as an air exhaust chamber (30102), and the air exhaust chamber (30102) is connected to an external air collecting device; the middle part of the drying box (301) is arranged as a drying chamber (30103); the drying chamber (30103) is connected to the air inlet chamber (30101) and the air exhaust chamber (30102) respectively; and the part of the blanket (7) located between the third rotating roller (6003) and the fourth rotating roller (6004) passes through the drying chamber (30103).

7. A dehydration device for corrugated paper production according to claim 6, characterized in that: The drying system also includes a guide plate (302); the inner side of the drying chamber (30103) is fixedly connected with a guide plate (302) for assisting in separating the pulp mass from the felt (7); the guide plate (302) is in an arc shape.

8. A dehydration device for corrugated paper production according to claim 6, characterized in that: The drying system further comprises an electric roller (303); the left inner wall and the right inner wall of the drying chamber (30103) are both rotatably connected to a plurality of electric rollers (303) for stretching the blanket (7); the left side and the right side of the blanket (7) are respectively located between the two electric rollers (303) on the corresponding sides; and the electric roller (303) is slidably connected to the blanket (7).

9. A dehydration device for corrugated paper production according to claim 6, characterized in that: The drying system further comprises a brush plate (304); the brush plate (304) for cleaning pulp residue on the surface of the felt (7) is fixedly connected in the drying chamber (30103); the brush plate (304) is located at the rear side of the felt (7); bristles are arranged on the brush plate (304); and the bristles are in contact with the surface of the felt (7).

10. A dehydration method for corrugated paper production, characterized in that: The method uses a dehydration device for corrugated paper production as claimed in claim 9, comprising the following working steps: S1: Spraying pulp, spraying the pulp evenly on the mesh conveyor through an external feeding device, controlling the mesh conveyor to drive the pulp to be transported backward, and separating the water in the pulp through the mesh conveyor; S2: water absorption, absorbing water on the upper surface of the wet paper sheet (4) through the felt (7), reducing the overall water content of the wet paper sheet (4), and separating the pulp mass on the wet paper sheet (4) through the suction plate (201); S3: replenishing pulp, replenishing pulp to the thinned portion of the wet paper sheet (4) through the replenishing pipe (204), so as to ensure the thickness and quality of the wet paper sheet (4); S4: scraping and leveling, the upper surface of the wet paper sheet (4) is scraped and leveled through the lower side of the collecting box (203), so that the pulp thickness of each part of the wet paper sheet (4) is kept consistent; S5: Pressing, driving the wet paper sheet (4) through the mesh cloth (3) into between the pressing rollers, and performing a pressing process on the wet paper sheet (4) through the pressing rollers to further squeeze out the water in the wet paper sheet (4).

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