Cotton pulp board production process

Abstract

The invention relates to a cotton pulp board production process which comprises the following steps: arranging a cotton bin for feeding a screw pre-soaking machine, wetting a cotton material in the cotton bin, equipping one screw pre-soaking machine with N cooking balls (N is greater than or equal to 3), transferring the cotton material discharged by the screw pre-soaking machine into each cooking ball by adopting a material distributing device, each cooking ball is provided with a cleaning pool for collecting and cleaning the cooked cotton material; after the feeding operation is started, an operator executes ball cover assembling operation on a material opening of the last cooking ball which completes the feeding operation, so that the last cooking ball which completes the feeding operation A enters a cooking treatment process; in this way, the distributing device is adjusted to feed the four cooking balls respectively. According to the technical scheme provided by the invention, by changing the corresponding relation among the screw pre-soaking machine, the material distributing device and the cooking ball, the connection between the pre-soaking process and the cleaning process is smoother, the production efficiency of the cotton pulp board is improved, and the production cost is reduced.

Description

Technical Field

[0001] This invention relates to the field of cotton pulp board production, and specifically to a cotton pulp board production process. Background Technology

[0002] The production of cotton pulp board involves multiple processes such as pre-soaking, cooking, washing, pulping, and papermaking. Each process has different throughput and processing time, which can lead to poor coordination between the preceding and following processes, resulting in low production efficiency. Therefore, it is necessary to address this issue to improve the production efficiency of cotton pulp board and reduce production costs. Summary of the Invention

[0003] The purpose of this invention is to provide a cotton pulp board production process that can effectively solve the problem of smooth connection between the pre-impregnation and cleaning processes, thereby improving the production efficiency of cotton pulp boards and reducing production costs.

[0004] To achieve the above objectives, the present invention is implemented using the following scheme.

[0005] A cotton pulp board production process is characterized by: setting up a cotton bin for feeding a screw preimpregnation machine, wetting the cotton material in the cotton bin, equipping one screw preimpregnation machine with N cooking balls, where N≥3, using a material distribution device to transfer the cotton material discharged from the screw preimpregnation machine to each cooking ball, and equipping each cooking ball with a washing tank for collecting and washing the cooked cotton material; The operation of feeding cotton material discharged from the screw pre-impregnation machine into an empty cooking ball using a feeding device is called feeding operation A. After feeding operation A begins, the operator performs a ball cover assembly operation on the material inlet of the cooking ball that has completed feeding operation A, so that the cooking ball that has completed feeding operation A enters the cooking process. The feeding device is adjusted in this way to feed four cooking balls separately. The cotton material in the washing tank is washed and then transferred to the A storage silo. The cotton pulp in storage bin A is transported to beating and finishing processes in sequence. After finishing, the cotton material is sent to storage bin B. The cotton material in storage bin B is sent to a continuous pulping equipment for pulping treatment. The wet paper after pulping treatment is sent to a continuous dryer for drying. The dried paper is then sent to a slitting device for slitting to obtain cotton pulp boards of the corresponding size.

[0006] A further solution is to open the cover of the cooked balls before or after the A feeding operation is completed, so that the cooked cotton material inside can be unloaded into the washing tank for cleaning.

[0007] N cooking balls are arranged in a row with intervals. The direction of the interval between the cooking balls is denoted as the X direction. The discharge port of the feeding device is adjusted to move along the X direction to switch the feeding between each cooking ball.

[0008] The washing tank is designed as a waist-shaped trough. A partition wall and a propeller are installed inside the washing tank to allow the cotton material to circulate around the partition wall. The partition wall is located in the middle of the washing tank. An A1 water injection pipe for injecting clean water and an A2 water injection pipe for injecting washing water are installed on the top of the washing tank. A filter screen is installed at the bottom of the washing tank. A drain pipe for discharging the filtered liquid is installed below the filter screen. A discharge pipe for discharging the washed cotton material is installed above the filter screen.

[0009] Material is distributed using an A-guide trough arranged on the upper side of the cooking balls. An A-push screw is installed in the A-guide trough to drive the material movement. The A-guide trough is arranged along the X direction and can move along the X direction. An A1 discharge port and an A2 discharge port are respectively set at both ends of the A-guide trough. The distance between the center of the material outlets on two adjacent cooking balls (when the cooking balls are in the feeding state) is d1, and the distance between the A1 discharge port and the A2 discharge port is set as d2, where d2=k*d1, k∈[1.65~1.85]. The A1 discharge port / A2 discharge port is adjusted to correspond to the material outlets on each cooking ball, and cotton material is added into each cooking ball.

[0010] The cooking balls arranged along the X direction are sequentially labeled as cooking ball 1, cooking ball 2, cooking ball 3, and cooking ball 4. The discharge port A1 along the X direction is located upstream of the discharge port A2. The operator executes operations S10 to S40 in a cyclical manner. S10: If the cotton material in the No. 2 cooking ball has been cooked, open the ball cover on the No. 2 cooking ball, empty the No. 2 cooking ball, unload the cooked cotton material into the washing tank directly below it for washing, then adjust the A1 material outlet to be arranged corresponding to the No. 2 cooking ball, and perform the A feeding operation on the No. 2 cooking ball. If the No. 2 cooking ball is empty, adjust the A1 material inlet to correspond to the No. 2 cooking ball and perform the A feeding operation on the No. 2 cooking ball. Before the end of operation A, if the cotton material in the No. 4 cooking ball has been cooked, open the ball cover on the No. 4 cooking ball, empty the No. 4 cooking ball, and unload the cooked cotton material into the washing tank below it for cleaning. S20: Adjust the A2 material inlet to correspond to the arrangement of the No. 4 cooking ball, and perform the A feeding operation on the No. 4 cooking ball; After the A feeding operation begins, the ball cover is installed on the No. 2 cooking ball, so that the No. 2 cooking ball can be cooked. Before the A feeding operation ends, if the cotton material in the No. 3 cooking ball has been cooked, the ball cover on the No. 3 cooking ball is opened, the No. 3 cooking ball is emptied, and the cooked cotton material is unloaded into the washing tank below it for cleaning. S30: Adjust the A2 material inlet to correspond to the arrangement of the No. 3 cooking ball, and perform the A feeding operation on the No. 3 cooking ball; After the A feeding operation begins, the ball cover is installed on the No. 4 cooking ball, so that the No. 4 cooking ball can be cooked. Before the A feeding operation ends, if the cotton material in the No. 1 cooking ball has been cooked, the ball cover on the No. 1 cooking ball is opened, the No. 1 cooking ball is emptied, and the cooked cotton material is unloaded into the washing tank below it for washing. S40: Adjust the A1 material inlet to correspond to the No. 1 cooking ball and execute the A feeding operation; After the A feeding operation begins, the ball cover assembly operation is performed on the No. 3 cooking ball, so that the No. 3 cooking ball can be cooked. After the A feeding operation is completed, the A1 material inlet is adjusted to move between the No. 2 and No. 3 cooking balls, and the ball cover assembly operation is performed on the No. 1 cooking ball, so that the No. 1 cooking ball can be cooked.

[0011] A B-shaped feed trough is set up horizontally perpendicular to the X direction. A B-shaped feed screw is set up in the B-shaped feed trough to push the cotton material. One end of the B-shaped feed trough is arranged to correspond to the discharge port of the screw pre-impregnation machine. The other end of the B-shaped feed trough is set to have a discharge port, which is arranged to correspond to the opening of the A-shaped feed trough. The B-shaped feed trough is located in the middle between the No. 2 and No. 3 digesters.

[0012] The cleaning operation for the cotton material in the cleaning tank includes: X10: After the cotton material is put into the washing tank, add washing water to the preset height, start the propeller to make the washing water and cotton material fully mixed. After being fully mixed, open the drain pipe and discharge the separated water through the filter screen. X20: Close the drain pipe, add cleaning water to the preset height, start the thruster to fully mix the cleaning water and cotton, and after full mixing, open the drain pipe and discharge the separated water through the filter screen. Perform the X20 operation 1 to 2 times; X30: Close the drain pipe, add clean water to the preset height, start the propeller to fully mix the clean water and cotton, and after full mixing, open the discharge pipe to transport the cotton to the A storage bin.

[0013] The water filtered by the continuous cotton milling equipment is recovered and stored in a water storage tank. The water in the water storage tank is then transported to the washing tank to be used as washing water for cotton.

[0014] The cotton material is conveyed to the cotton bin by pneumatic conveying. A spraying device is installed at the top of the cotton bin to spray the cotton material with a solution. The bottom of the cotton bin is connected to the screw pre-impregnation machine.

[0015] The technical solution provided by this invention improves the production efficiency and cost of cotton pulp boards by changing the correspondence between the screw pre-impregnation machine, the material distribution device, and the cooking balls, making the connection between the pre-impregnation and cleaning processes smoother. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the present invention.

[0017] Figure 2 This is a schematic diagram showing the assembly of the cotton silo, screw pre-impregnation machine, cooking balls, and washing tank.

[0018] Figure 3 for Figure 2 Side view.

[0019] Figure 4 This is a schematic diagram of the cleaning tank.

[0020] Figure 5 This is an assembly diagram of the cotton silo, screw pre-impregnation machine, and material distribution device.

[0021] Figure 6 This is an assembly diagram of the mobile trolley and the movable mounting frame.

[0022] Figure 7 This is a schematic diagram of the adjustment of the synchronous transmission unit.

[0023] Figure 8 This is a schematic diagram of the synchronous transmission unit.

[0024] Figure 9 This is a schematic diagram of the structure of a steaming ball.

[0025] Figure 10 A schematic diagram of the structure of the cooking balls after the ball cover is assembled.

[0026] Drawing number explanations: 01-First floor slab, 02-Second floor slab, 03-Third floor slab, 04-Fourth floor slab, 10-Washing tank, 11-Partition wall, 12-Filter screen, 13-Installation section, 14-Propeller, 15-Drainage pipe, 16-Discharge pipe, 171-A1 water injection pipe, 172-A2 water injection pipe, 20-Cooking ball, 21-Material inlet, 23-Ball cover, 30-A-Guide trough, 311-A1 discharge port, 312-A2 discharge port 32-A Pusher Screw, 33-Mobile Trolley, 34-A1 Guide Rail, 35-Modible Mounting Frame, 36-Slider, 371-A1 Guide Hopper, 372-A2 Guide Hopper, 40-B Guide Groove, 50-Screw Pre-impregnation Machine, 60-Cotton Hopper, 71-A11 Pulley, 72-A12 Pulley, 73-A21 Pulley, 74-A22 Pulley, 75-A31 Pulley, 76-A32 Pulley, 77-A1 Connecting Rope, 78-A2 Connecting Rope. Detailed Implementation

[0027] To make the objectives and advantages of this invention clearer, the invention will be specifically described below with reference to embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of the invention and does not strictly limit the scope of protection specifically claimed by the invention.

[0028] As used in this document, terms such as “parallel” and “perpendicular” are not limited to their strict geometric definitions, but include tolerances for reasonable and inconsistent machining or human errors.

[0029] This invention improves upon an existing cotton pulp board production line, with the main improvements being as follows: 1. Modifying the correspondence between the screw pre-impregnation machine 50, the material distribution device, the cooking balls 20, and the washing tank 10. 2. Changing the length of the A-feed guide trough 30 and the feeding relationship of each cooking tank. 3. Improving the structure of the washing tank 10. 4. Recovering the filtrate from the continuous pulping equipment for washing the cotton material in the washing tank 10. 5. Adding a material guiding device to prevent leakage of cotton material during feeding. The following describes only the above improvements in detail; other structures and equipment not described herein shall be implemented according to existing cotton pulp board production lines or according to prior applications.

[0030] The technical solution adopted in this invention is as follows: Figure 1As shown, a cotton pulp board production process includes a cotton silo 60 for feeding a screw preimpregnation machine 50, where the cotton material is wetted. Each screw preimpregnation machine 50 is equipped with N cooking balls 20, where N≥3. A material distribution device transfers the cotton material discharged from the screw preimpregnation machine 50 to each cooking ball 20. Each cooking ball 20 is equipped with a washing tank 10 for collecting and washing the cooked cotton material. The operation of feeding the cotton material discharged from the screw preimpregnation machine 50 into an empty cooking ball 20 using the material distribution device is recorded as feeding operation A. After feeding operation A begins, the operator feeds the material from the material inlet 21 of the cooking ball 20 that previously completed feeding operation A. The assembly of the ball cover 23 is performed, allowing the cooking ball 20 that completed the A feeding operation to enter the cooking process; the feeding device is adjusted in this way to feed the four cooking balls 20 respectively; the cotton material in the washing tank 10 is washed and then transferred to the A pulp storage bin; the cotton pulp in the A pulp storage bin is sent to various pulping equipment and fine pulping machines for pulping and fine pulping; after pulping (fine pulping), the cotton material is sent to the B pulp storage bin; the cotton material in the B pulp storage bin is sent to the continuous pulping equipment for pulping; the wet paper after pulping is sent to the continuous dryer for drying; the dried paper is sent to the cutting device for cutting to obtain the corresponding size of pulp board.

[0031] A further solution is as follows: Before or after the A feeding operation, the operator opens the cover 23 of the cooked cotton balls 20 to unload the cooked cotton material into the washing tank 10 for cleaning. N cooked cotton balls 20 are arranged in a line with intervals, and the direction of the distance between the cooked cotton balls 20 is denoted as the X direction. The discharge port of the distributing device is adjusted along the X direction to switch the feeding between the various cooked cotton balls 20. Specifically, as follows... Figure 2 , 3 As shown in Figure 9. Preferably, N=4. A guide trough 30 arranged on the upper side of the cooking balls 20 is used for material distribution. A pusher screw 32 for moving the material is installed inside the guide trough 30. The guide trough 30 is arranged along the X direction and can move along the X direction. An A1 discharge port 311 and an A2 discharge port 312 are respectively set at both ends of the guide trough 30. The distance between the centers of the material outlets on two adjacent cooking balls 20 is denoted as d1, and the distance between the A1 discharge port 311 and the A2 discharge port 312 is set as d2, where d2=k*d1, k∈[1.65~1.85]. The A1 discharge port 311 / A2 discharge port 312 are adjusted to correspond to the material outlets on each cooking ball 20, and cotton material is added into each cooking ball 20. Preferably, k=1.75. The length of the moving trolley is <1.9d1.

[0032] Setting N to 4 ensures that the time required for cotton cooking matches the total time required for feeding the four sets of cooking balls 20, creating a reliable cycle, smoothing the feeding operation, improving production efficiency, and reducing production costs. Due to the large distance between the centers of the cooking balls 20, by setting A1 discharge port 311 and A2 discharge port 312 at both ends of the A guide trough 30, the travel distance of the A guide trough 30 can be shortened, simplifying the wiring layout. Specifically, switching the forward and reverse rotation of the A pusher screw 32 allows the cotton to be discharged from different discharge ports. For example, adjusting the A pusher screw 32 to rotate forward discharges the cotton from the A1 discharge port 311, while adjusting it to rotate in reverse discharges the cotton from the A2 discharge port 312. More specifically, a B-type feed trough 40 can be set up horizontally perpendicular to the X direction. A B-type pusher screw for pushing the cotton material is installed inside the B-type feed trough 40. One end of the B-type feed trough 40 is aligned with the outlet of the screw pre-impregnation machine 50, and the other end of the B-type feed trough 40 has an outlet that aligns with the opening of the A-type feed trough 30. The B-type feed trough 40 is located in the center between the No. 2 and No. 3 digesters. The A-type pusher screw 32 and the B-type pusher screw are driven by motors A and B, respectively. The B-type feed trough 40 is located above the A-type feed trough 30 and can be implemented in the existing manner.

[0033] like Figure 5 , 6 As shown, the detailed operation is as follows: The A-feed guide trough 30 is installed on the mobile trolley 33, which is equipped with a drive mechanism to move it. The drive mechanism can be implemented according to a prior application. Specifically, the washing tank 10 can be installed on the first floor slab 01, the cooking balls 20 can be rotatably installed on the second floor slab 02, the material distribution device and the screw pre-impregnation machine 50 can be installed on the third floor slab 03, and the cotton hopper 60 can be installed on the fourth floor slab 04. A first gap is provided on the third floor slab 03 corresponding to the material inlet 21 on each cooking ball 20, and a second gap is provided on the second floor slab 02 corresponding to each washing tank. Cotton material falling from the A1 outlet 311 and A2 outlet 312 falls into the cooking ball 20 through the first gap, and cotton material unloaded from the cooking ball 20 falls into the washing tank 10 through the second gap. The assembly structure of the ball cover 23 is consistent with the conventional implementation method. The assembly and unloading operations of the ball cover 23 are also consistent with the assembly method of the ball cover 23 on a traditional cotton pulp board production line, that is, assembly and unloading are performed manually from the first empty section. Figure 9 , 10As shown. The A pulp storage silo can be located on the first floor slab. If the building with the washing tank 10 is large enough, the pulping equipment, refiner, B pulp storage silo, continuous pulping equipment, paper dryer, and slitting device can be installed on the first floor slab 01 of the same building. In this application, the pulping equipment, B pulp storage silo, continuous pulping equipment, continuous dryer, and slitting device are installed on the first floor slab of another building. The A and B pulp storage silos are relatively tall silos, mainly serving to concentrate cotton material mixing. The continuous pulping equipment can be a filter-type solid-liquid separation pulping equipment (forming device). The continuous dryer is a paper dryer composed of multiple drying cylinders. Wet paper is wrapped on the drying cylinders for conveying and drying, and the inner cavity of the drying cylinders is connected to a steam source. The continuous pulping equipment, continuous dryer, and slitting device can all use existing papermaking equipment. The pulping equipment can be a Dutch beater, and the refiner can be a large-cone refiner. Other functional equipment such as a sand remover can also be used. The rotation of the cooking ball can be discontinuous.

[0034] like Figure 6 , 7As shown in Figure 8, two spaced-apart A1 guide rails 34 are provided on the upper surface of the third floor slab 03, with the first gap located between the two A1 guide rails 34. Two spaced-apart A2 guide rails are provided on the lower surface of the third floor slab 03, with each A2 guide rail corresponding to one of the two A1 guide rails 34. Both A1 and A2 guide rails are arranged along the X direction. A mobile trolley 33 is rotatably mounted on the two A1 guide rails 34, and a movable mounting bracket 35 is suspended on the two A2 guide rails. The movable mounting bracket 35 is slidably mounted on the A2 guide rails along the X direction. The movable mounting frame 35 has A1 guide hopper 371 and A2 guide hopper 372 at its two ends, respectively. The heights of A1 guide hopper 371 and A2 guide hopper 372 are adapted to the distance between the material inlet 21 on the cooking ball 20 and the third floor slab 03 when feeding. A1 guide hopper 371 and A2 guide hopper 372 are arranged corresponding to A1 discharge outlet 311 and A2 discharge outlet 312, respectively. The moving trolley 33 and the movable mounting frame 35 move synchronously and in the same direction. Specifically, sliders 36 can be set at intervals on the movable mounting frame 35. The sliders 36 are provided with constricted grooves that slide and slidably assemble with the A2 guide rail. The setting of A1 guide hopper 371 and A2 guide hopper 372 can solve the problem of material leakage caused by the height difference between the material inlet and the third floor slab 03 due to space requirements, thus improving the reliability of feeding. The cross-sectional shapes of the inner cavities of discharge ports A1 and A2, the first void, and the A1 and A2 guide hoppers 371 and 372 are all matched and gradually decrease from top to bottom. The lower inner cavity cross-section of discharge ports A1 and A2 is smaller than the upper inner cavity cross-section of the first void, the lower inner cavity cross-section of the first void is smaller than the upper inner cavity cross-section of guide hoppers A1 and A2, and the lower inner cavity cross-section of guide hoppers A1 and A2 is smaller than the cavity cross-section of the material inlet 21. This improves the effect of preventing material leakage and ensures that the material can reliably enter each cooking ball 20.

[0035] like Figure 7 , 8As shown, a more specific solution is that the mobile trolley and the movable mounting frame are connected by two synchronous transmission parts. The two synchronous transmission parts are respectively located on the two outer sides of the first empty part, thereby avoiding any impact on the assembly and unloading of the ball cover 23. The synchronous transmission unit includes A11 pulleys 71 and A12 pulleys 72 respectively arranged on both sides of the A1 guide rail 34, A21 pulleys 73 and A22 pulleys 74 respectively arranged on both sides of the A2 guide rail, A31 pulleys 75 and A32 pulleys 76 respectively arranged on the lower side of A21 pulleys 73 and A22 pulleys 74, A1 through hole is provided on the third floor slab 03 between A11 pulleys 71 and A21 pulleys 73, and A2 through hole is provided on the third floor slab 03 between A12 pulleys 72 and A32 pulleys 76. The synchronous transmission unit also includes A1 connecting rope 77 and A2 connecting rope 78. The two ends of the moving trolley 33 and the movable mounting frame 35 along the A direction are respectively referred to as the A1 end and the A2 end. One end of the A1 connecting rope 77 is connected to the A1 end of the moving trolley 33, and the other end passes through the A11 pulley 71, the A1 through hole, the A21 pulley 73, and the A22 pulley 74 to connect to the A2 end of the movable mounting frame 35. One end of the A2 connecting rope 78 is connected to the A2 end of the moving trolley 33, and the other end passes through the A12 pulley 72, the A2 through hole, the A32 pulley 76, and the A31 pulley 75 to connect to the A1 end of the movable mounting frame 35. Through the above two transmission parts, the moving trolley 33 can drive the movable mounting frame 35 to move synchronously, allowing the A1 guide hopper 371, A2 guide hopper 372, A1 discharge port 311, and A2 discharge port 312 to be arranged in real time, ensuring the reliability of material guidance. Using a synchronous transmission mechanism eliminates the need for wiring on the lower surface of the third floor slab 03, resulting in low implementation costs and convenient and reliable operation. Additionally, tensioning components can be installed to tension the A1 connecting rope 77 and the A2 connecting rope 78.

[0036] A more specific operating method is as follows: the cooking balls 20 arranged along the X direction are sequentially labeled as cooking ball 1, cooking ball 20, cooking ball 20, cooking ball 3, and cooking ball 4. The discharge port 311 of A1 along the X direction is located upstream of the discharge port 312 of A2. The operator performs operations S10 to S40 in a cyclical manner.

[0037] S10: If the cotton material in the No. 2 cooking ball 20 has completed the cooking process, open the ball cover 23 on the No. 2 cooking ball 20, empty the No. 2 cooking ball 20, unload the cooked cotton material into the washing tank 10 directly below it for cleaning, then adjust the A1 material inlet 21 to correspond to the No. 2 cooking ball 20 and perform the A feeding operation on the No. 2 cooking ball 20; if the No. 2 cooking ball 20 is empty, directly adjust the A1 material inlet 21 to correspond to the No. 2 cooking ball 20 and perform the A feeding operation on the No. 2 cooking ball 20; before the A operation is completed, if the cotton material in the No. 4 cooking ball 20 has completed the cooking process, open the ball cover on the No. 4 cooking ball 20, empty the No. 4 cooking ball 20, and unload the cooked cotton material into the washing tank 10 below it for cleaning.

[0038] S20: Adjust the A2 material inlet 21 to correspond to the arrangement of the No. 4 cooking ball 20, and perform the A feeding operation on the No. 4 cooking ball 20; after the A feeding operation starts, perform the ball cover assembly operation on the No. 2 cooking ball 20 so that the No. 2 cooking ball 20 can be cooked; before the A feeding operation ends, if the cotton material in the No. 3 cooking ball 20 has been cooked, open the ball cover on the No. 3 cooking ball 20, empty the No. 3 cooking ball 20, and unload the cooked cotton material into the washing tank 10 below it for cleaning.

[0039] S30: Adjust the A2 material inlet 21 to correspond to the arrangement of the No. 3 cooking ball 20, and perform the A feeding operation on the No. 3 cooking ball 20; after the A feeding operation starts, perform the ball cover assembly operation on the No. 4 cooking ball 20, so that the No. 4 cooking ball 20 can be cooked; before the A feeding operation ends, if the cotton material in the No. 1 cooking ball 20 has been cooked, open the ball cover on the No. 1 cooking ball 20, empty the No. 1 cooking ball 20, and unload the cooked cotton material into the washing tank 10 below it for cleaning.

[0040] S40: Adjust material inlet 21 of A1 to be arranged corresponding to cooking ball 20 of No. 1, and perform feeding operation A; after feeding operation A begins, perform the ball cover assembly operation on cooking ball 20 of No. 3, so that cooking ball 20 of No. 3 can be cooked; after feeding operation A ends, adjust material inlet 21 of A1 to be moved between cooking ball 20 of No. 2 and cooking ball 20 of No. 3, and perform the ball cover assembly operation on cooking ball 20 of No. 1, so that cooking ball 20 of No. 1 can be cooked.

[0041] By adopting the above specific operating procedures, the operating efficiency is higher, the operation is more orderly, and the production efficiency of cotton pulp board is significantly improved and the cost is reduced.

[0042] like Figure 4As shown, the washing tank 10 is configured as a waist-shaped trough. A partition wall 11 and a propeller 14 are installed within the washing tank 10 to allow the cotton material to circulate around the partition wall 11. The partition wall 11 is located in the middle of the washing tank. An A1 water injection pipe 171 for injecting clean water and an A2 water injection pipe 172 for injecting washing water are installed on the washing tank 10. A filter screen 12 is installed at the bottom of the washing tank 10. A drain pipe 15 for discharging the filtered liquid is installed below the filter screen 12, and a discharge pipe 16 for discharging the washed cotton material is installed above the filter screen 12. Specifically, the filter screen 12 can be a ring-shaped track-like mesh plate. The junctions of the filter screen 12 with the tank wall and partition wall 11 are beveled upwards, which facilitates the collection and transport of the washed cotton material. The inlet of the drain pipe 15 is located at the lowest point of the trough area below the filter screen 12, and the inlet of the discharge pipe 16 is located at the lowest point of the trough area above the filter screen. The upper middle part of the partition wall 11 corresponds to the material inlet 21 on the cooking ball 20. The height of the upper part of the partition wall 11 gradually increases from the middle to both sides. An installation part 13 is provided between one side of the partition wall 11 and the washing tank 10. The installation part 13 is provided with mounting holes for installing the propeller 14. The propeller 14 can be a general material propeller 14, such as a stirring paddle propeller.

[0043] The cotton washing operation in the washing tank includes: X10: After the cotton is put into the washing tank 10, washing water is added to the preset height. The propeller 14 is started to fully mix the washing water and cotton. After full mixing, the drain pipe 15 is opened, and the separated water is discharged from the drain pipe 15 through the filter screen 12; X20: The drain pipe 15 is closed, washing water is added to the preset height, and the propeller 14 is started to fully mix the washing water and cotton. After full mixing, the drain pipe 15 is opened, and the separated water is discharged from the drain pipe 15 through the filter screen 12; this X20 operation is performed 1-2 times; X30: The drain pipe 15 is closed, clean water is added to the preset height, and the propeller 14 is started to fully mix the clean water and cotton. After full mixing, the discharge pipe 16 is opened to transport the cotton to the A pulp storage bin. The water filtered by the continuous pulping equipment is recovered and stored in a water storage tank. The water in the water storage tank is transported to the washing tank 10 as washing water to wash the cotton.

[0044] The above solution can quickly clean cotton materials, improving production efficiency. Furthermore, it recycles and reuses the water filtered by the continuous pulping equipment, significantly reducing water consumption and wastewater treatment in cotton pulp board production, lowering production costs, and significantly improving the production efficiency of cotton pulp boards.

[0045] The cotton material is conveyed into the cotton silo 60 by pneumatic conveying. A spraying device is installed at the top of the cotton silo 60 to spray a solution onto the cotton material inside. The bottom of the cotton silo 60 is connected to the screw pre-impregnation machine 50. Specifically, the cotton material can be pneumatically conveyed into the cotton silo 60 by a blower, and then sprayed with alkaline solution by the spraying device. This causes the cotton material to absorb water and fall to the bottom of the cotton silo 60 to feed the screw pre-impregnation machine 50. The pneumatic conveying method can be consistent with existing implementation methods. This method reliably wets the cotton material, facilitating subsequent pre-impregnation treatment. The screw pre-impregnation machine 50 for pre-impregnation can be any existing pre-impregnation equipment.

[0046] In summary, the above-mentioned solution provided by the present invention can effectively improve the production efficiency of cotton pulp board and reduce production costs.

[0047] The above description is merely a preferred embodiment of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described or explained in this invention are implemented according to conventional methods in the art unless otherwise specified or limited.

Claims

1. A cotton pulp board production process, characterized in that: Set up a cotton bin for feeding the screw preimpregnation machine, wet the cotton material in the cotton bin, equip one screw preimpregnation machine with N cooking balls, N≥3, use a material distribution device to transfer the cotton material discharged from the screw preimpregnation machine to each cooking ball, and equip each cooking ball with a washing tank for collecting and washing the cooked cotton material. The operation of feeding cotton material discharged from the screw pre-impregnation machine into an empty cooking ball using a feeding device is called feeding operation A. After feeding operation A begins, the operator performs a ball cover assembly operation on the material inlet of the cooking ball that has completed feeding operation A, so that the cooking ball that has completed feeding operation A enters the cooking process. The feeding device is adjusted in this way to feed four cooking balls separately. The cotton material in the washing tank is washed and then transferred to the A storage silo. The cotton pulp in storage bin A is transported to beating and finishing processes in sequence. After finishing, the cotton material is sent to storage bin B. The cotton material in storage bin B is sent to a continuous pulping equipment for pulping treatment. The wet paper after pulping treatment is sent to a continuous dryer for drying. The dried paper is then sent to a slitting device for slitting to obtain cotton pulp boards of the corresponding size.

2. The cotton pulp board production process according to claim 1, characterized in that: Before or after the A feeding operation is completed, the operator opens the cover of the cooked balls to unload the cooked cotton material into the washing tank for cleaning.

3. The cotton pulp board production process according to claim 1 or 2, characterized in that: The cotton pulp board production process is characterized by: arranging N cooking balls in a row with intervals, and marking the direction of the spacing between the cooking balls as the X direction, and adjusting the discharge port of the material distribution device to move along the X direction to switch the feeding between each cooking ball.

4. The cotton pulp board production process according to claim 1 or 2, characterized in that: The washing tank is designed as a waist-shaped trough. A partition wall and a propeller are installed inside the washing tank to allow the cotton material to circulate around the partition wall. An A1 water injection pipe for injecting clean water and an A2 water injection pipe for injecting washing water are installed on the top of the washing tank. A filter screen is installed at the bottom of the washing tank. A drain pipe for discharging the filtered liquid is installed below the filter screen. A discharge pipe for discharging the washed cotton material is installed above the filter screen.

5. The cotton pulp board production process according to claim 1, characterized in that: N=4。 6. The cotton pulp board production process according to claim 5, characterized in that: Material is distributed using an A-guide trough arranged on the upper side of the cooking balls. An A-push screw is installed in the A-guide trough to drive the material movement. The A-guide trough is arranged along the X direction and can move along the X direction. An A1 discharge port and an A2 discharge port are respectively set at both ends of the A-guide trough. The distance between the center of the material outlets on two adjacent cooking balls is denoted as d1, and the distance between the A1 discharge port and the A2 discharge port is set as d2, where d2=k*d1, k∈[1.65~1.85]. The A1 discharge port / A2 discharge port is adjusted to correspond to the material outlets on each cooking ball, and cotton material is added into each cooking ball.

7. The cotton pulp board production process according to claim 6, characterized in that: The cooking balls arranged along the X direction are sequentially labeled as cooking ball 1, cooking ball 2, cooking ball 3, and cooking ball 4. The discharge port A1 along the X direction is located upstream of the discharge port A2. The operator executes operations S10 to S40 in a cyclical manner. S10: If the cotton material in the No. 2 cooking ball has been cooked, open the ball cover on the No. 2 cooking ball, empty the No. 2 cooking ball, unload the cooked cotton material into the washing tank directly below it for washing, then adjust the A1 material outlet to be arranged corresponding to the No. 2 cooking ball, and perform the A feeding operation on the No. 2 cooking ball. If the No. 2 cooking ball is empty, adjust the A1 material inlet to correspond to the No. 2 cooking ball and perform the A feeding operation on the No. 2 cooking ball. Before the end of operation A, if the cotton material in the No. 4 cooking ball has been cooked, open the ball cover on the No. 4 cooking ball, empty the No. 4 cooking ball, and unload the cooked cotton material into the washing tank below it for cleaning. S20: Adjust the A2 material inlet to correspond to the arrangement of the No. 4 cooking ball, and perform the A feeding operation on the No. 4 cooking ball; After the A feeding operation begins, the ball cover is installed on the No. 2 cooking ball, so that the No. 2 cooking ball can be cooked. Before the A feeding operation ends, if the cotton material in the No. 3 cooking ball has been cooked, the ball cover on the No. 3 cooking ball is opened, the No. 3 cooking ball is emptied, and the cooked cotton material is unloaded into the washing tank below it for cleaning. S30: Adjust the A2 material inlet to correspond to the arrangement of the No. 3 cooking ball, and perform the A feeding operation on the No. 3 cooking ball; After the A feeding operation begins, the ball cover is installed on the No. 4 cooking ball, so that the No. 4 cooking ball can be cooked. Before the A feeding operation ends, if the cotton material in the No. 1 cooking ball has been cooked, the ball cover on the No. 1 cooking ball is opened, the No. 1 cooking ball is emptied, and the cooked cotton material is unloaded into the washing tank below it for washing. S40: Adjust the A1 material inlet to correspond to the No. 1 cooking ball and execute the A feeding operation; After the A feeding operation begins, the ball cover assembly operation is performed on the No. 3 cooking ball, so that the No. 3 cooking ball can be cooked. After the A feeding operation is completed, the A1 material inlet is adjusted to move between the No. 2 and No. 3 cooking balls, and the ball cover assembly operation is performed on the No. 1 cooking ball, so that the No. 1 cooking ball can be cooked.

8. The cotton pulp board production process according to claim 6, characterized in that, The cleaning operation for the cotton material in the cleaning tank includes: X10: After the cotton material is put into the washing tank, add washing water to the preset height, start the propeller to make the washing water and cotton material fully mixed. After being fully mixed, open the drain pipe and discharge the separated water through the filter screen. X20: Close the drain pipe, add cleaning water to the preset height, start the thruster to fully mix the cleaning water and cotton, and after full mixing, open the drain pipe and discharge the separated water through the filter screen. Perform the X20 operation 1 to 2 times; X30: Close the drain pipe, add clean water to the preset height, start the propeller to fully mix the clean water and cotton, and after full mixing, open the discharge pipe to transport the cotton to the A storage bin.

9. The cotton pulp board production process according to claim 8, characterized in that, The water filtered by the continuous cotton milling equipment is recovered and stored in a water storage tank. The water in the water storage tank is then transported to the washing tank to be used as washing water for cotton.

10. The cotton pulp board production process according to claim 1, characterized in that, The cotton material is conveyed to the cotton bin by pneumatic conveying. A spraying device is installed at the top of the cotton bin to spray the cotton material with a solution. The bottom of the cotton bin is connected to the screw pre-impregnation machine.

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