Plate-making forming device for improving quality of calcium silicate plate blank

Abstract

The invention belongs to the technical field of calcium silicate board production, and particularly relates to a plate-making forming device for improving the quality of a calcium silicate board blank, which comprises a rack, and a headbox, a felt belt, a breast roll, a forming roll and a cleaning box are mounted on the rack; a passing opening is formed in the cleaning box, the felt belt penetrates through the cleaning box from the passing opening, a guide roller is installed in the cleaning box, and the felt belt is in a U shape in the cleaning box; a water spraying plate is mounted in the cleaning box, and the felt belt is immersed below the liquid level in the cleaning box; a cleaning roller is installed in the cleaning box and makes contact with the lower surface of the felt belt, and the rotating direction of the cleaning roller is opposite to the moving direction of the felt belt. The cleaning device is simple in structure, the felt belt can be cleaned in an immersed mode in the cleaning box, the cleaning box is divided into a plurality of cleaning grids, the cleaning effect of the felt belt is improved, and slurry after cleaning is prevented from being attached to the felt belt again.

Description

Technical Field

[0001] The present invention belongs to the technical field of calcium silicate board production, and specifically relates to a plate-making and forming device for improving the quality of calcium silicate board blanks. Background Art

[0002] Calcium silicate board belongs to a new generation of "green" building materials, with excellent moisture-proof and fire-proof properties and unique environmental protection functions on the basis. Calcium silicate board is mainly based on silicon powder and calcium powder materials, with natural wood fiber as the reinforcing material, and other auxiliary materials are added externally. After forming by slurry casting, it is a new type of building material generated through high-temperature and high-pressure curing.

[0003] During the forming process of calcium silicate board, a stirrer and a partition are installed in the slurry box of the plate-making machine. When the slurry reaches a certain liquid level in the slurry box, it naturally flows onto the felt through the horizontal slurry distribution board and the inclined slurry flow board to form a primary material layer. The primary material layer is forced to dehydrate through multiple vacuum boxes, wound onto the forming cylinder. After reaching the required thickness, the wet blank is removed from the forming cylinder and then processed into various formed products through multiple processes.

[0004] After the wet blank is peeled off and before the felt is loaded with slurry again, the felt needs to be cleaned. However, the existing plate-making machines usually do not have a special cleaning device. Most of them fix a water pipe below the felt to wash the felt upward. However, due to the immovable small holes of the water pipe in this structural way, a striped cleaning effect is produced on the felt, resulting in a large amount of slurry residue and incomplete cleaning, causing poor quality of subsequent blank making. Summary of the Invention

[0005] In order to make up for the deficiencies of the prior art, the felt belt is subjected to immersion cleaning in the cleaning box and multiple cleaning grids are divided in the cleaning box to improve the cleaning effect of the felt belt and prevent the slurry after cleaning from reattaching to the felt belt. The present invention provides a plate-making and forming device for improving the quality of calcium silicate board blanks.

[0006] The technical solution adopted by the present invention to solve its technical problems is as follows: The plate-making and forming device for improving the quality of calcium silicate board blanks of the present invention includes a frame, on which a slurry box, a felt belt, a breast roll, and a forming roll are installed. A cleaning box is also installed on the frame, and the cleaning box cleans the felt belt passing through the breast roll. A through-opening is provided on the cleaning box, and the felt belt passes through the cleaning box from the through-opening. An upper guide roll and a lower guide roll are installed in the cleaning box from top to bottom. The upper guide roll and the lower guide roll make the felt belt in the cleaning box in a "U" shape, and the plane where the upper guide roll is located is flush with the through-opening. A water spraying plate is installed inside the cleaning box. The water spraying plate is located above the horizontal part of the "凵" shape. The liquid level inside the cleaning box is between the upper guide roller and the lower guide roller. A water inlet pipe is installed on the water spraying plate, and a cleaning drain pipe is installed on the bottom surface of the cleaning box. A cleaning roller is installed inside the cleaning box. The cleaning roller is in contact with the lower surface of the felt belt. The rotation direction of the cleaning roller is opposite to the movement direction of the felt belt.

[0007] Preferably, symmetric rubber plates are installed inside the through-opening. The felt belt passes between the rubber plates. The rubber plates contact and squeeze the felt belt, and the rubber plates seal the through-opening.

[0008] Preferably, the cross-section of the rubber plate is in the shape of an inverted "V" placed horizontally. The tip of the inverted "V" is opposite to the movement direction of the felt belt.

[0009] Preferably, magnetic blocks are installed at one end of the rubber plate close to the felt belt. There is a magnetic force of mutual attraction between the magnetic blocks.

[0010] Preferably, multiple groups of partition plates are installed on the bottom surface of the cleaning box. The partition plates divide the space inside the cleaning box into multiple cleaning grids. The upper ends of the partition plates are exactly in contact with the lower surface of the felt belt, and cleaning rollers are arranged in each cleaning grid.

[0011] Preferably, a brush plate is installed on the inner wall of the cleaning box. The brush plate is in contact with the side surface of the felt belt, and the brush plate seals the gap between the felt belt and the inner wall of the cleaning box.

[0012] Preferably, a connecting pipe is installed on the bottom surface of the cleaning box. The connecting pipes correspond to the cleaning grids one by one. The bottom surface of the cleaning box is inclined. The connecting pipe is located at the lower end of the bottom surface. A one-way valve is installed on the connecting pipe. The end of the connecting pipe far from the cleaning box is installed with a collection box through a mounting rod, and the cleaning drain pipe is connected to the collection box.

[0013] Preferably, multiple groups of head boxes are provided, and there are at least three head boxes.

[0014] The beneficial effects of the present invention are as follows: 1. The plate-making and forming device for improving the quality of calcium silicate board blanks described in the present invention provides a cleaning box, an upper guide roller, a lower guide roller, a water sprinkling plate, a cleaning roller and a partition, so that the felt belt is immersed in water after entering the cleaning box, so that the slurry remaining on the felt belt re-absorbs water, weakening the bonding force between the slurry and the felt belt, making it convenient for the cleaning roller to clean the felt belt, and the felt belt is fully cleaned to avoid the existence of striped cleaning effects. At the same time, the partition divides the cleaning box into a plurality of cleaning grids, so that the felt belt is cleaned at multiple levels to avoid the slurry that has fallen off from re-attaching to the felt belt, thereby improving the cleaning effect of the felt belt.

[0015] 2. The plate-making and forming device for improving the quality of calcium silicate board blanks described in the present invention, by arranging a rubber plate, the rubber plate is used to seal the cleaning box to avoid water leakage in the cleaning box. At the same time, the slurry remaining on the surface of the wool belt when entering the cleaning box is cleaned to reduce the difficulty of cleaning the wool belt in the cleaning box. At the same time, the wool belt is squeezed when leaving the cleaning box to reduce the water carried by the wool belt when leaving the cleaning box to avoid affecting the forming quality of subsequent blanks.

[0016] 3. The plate-making and forming device for improving the quality of calcium silicate board blanks described in the present invention provides multiple sets of flow boxes to buffer the slurry after it enters the flow boxes, thereby avoiding impact and tumbling between the slurries, which would cause an unstable slurry state, and ensuring stable outflow of the slurry during discharge, so that the slurry can be evenly laid on the felt belt, thereby cooperating with the felt belt with a clean and tidy surface after cleaning to improve the forming quality of the blanks. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described below in conjunction with the accompanying drawings.

[0018] Figure 1 is a three-dimensional diagram of the molding device of the present invention; Figure 2 is a three-dimensional diagram of a cleaning box in the molding device of the present invention; Figure 3 Schematic diagram of the structure of the cleaning box in the molding device of the present invention; the arrow direction is the moving direction of the felt belt; Figure 4 yes Figure 3 A partial enlarged view of the middle part; Figure 5 yes Figure 3 A partial enlarged view of point B in the middle; In the figure: frame 1, headbox 11, breast roll 12, forming roll 13, natural dewatering box 2, vacuum dewatering box 3, cleaning box 4, through port 41, rubber plate 411, magnetic block 412, upper guiding roll 42, lower guiding roll 43, water spraying plate 44, water inlet pipe 441, cleaning roll 45, motor 451, partition plate 46, brush plate 47, collection box 48, connecting pipe 481, cleaning drain pipe 482, mounting rod 483, felt belt 5. Detailed implementation manner

[0019] In order to make the technical means, creative features, achieved purposes and effects of the present invention easy to understand, the present invention will be further described below in conjunction with specific implementation manners.

[0020] As Figures 1 to 5 shown, a plate-making and forming device for improving the quality of calcium silicate board blanks according to the present invention includes a frame 1, a headbox 11, a felt belt 5, a breast roll 12 and a forming roll 13 are installed on the frame 1, and a cleaning box 4 is also installed on the frame 1, and the cleaning box 4 cleans the felt belt 5 passing through the breast roll 12; A through port 41 is opened on the cleaning box 4, the felt belt 5 passes through the cleaning box 4 from the through port 41, an upper guiding roll 42 and a lower guiding roll 43 are installed in the cleaning box 4 from top to bottom, and the upper guiding roll 42 and the lower guiding roll 43 make the felt belt 5 in the cleaning box 4 in a "U" shape, and the plane where the upper guiding roll 42 is located is flush with the through port 41; A water spraying plate 44 is installed in the cleaning box 4, the water spraying plate 44 is located above the horizontal part of the "U", the liquid level in the cleaning box 4 is between the upper guiding roll 42 and the lower guiding roll 43, a water inlet pipe 441 is installed on the water spraying plate 44, and a cleaning drain pipe 482 is installed on the bottom surface of the cleaning box 4; A cleaning roll 45 is installed in the cleaning box 4, the cleaning roll 45 is in contact with the lower surface of the felt belt 5, and the rotation direction of the cleaning roll 45 is opposite to the movement direction of the felt belt 5; When forming the calcium silicate board, the slurry is coated from the headbox 11 onto the felt belt 5. After the slurry on the felt belt 5 is dewatered by the natural dewatering box 2 and the vacuum dewatering box 3, the slurry reaches the breast roll 12 at the right end of the frame 1. After being squeezed between the forming roll 13 and the breast roll 12, the slurry on the felt belt 5, that is, the formed blank after dewatering, adheres to the forming roll 13. When the blank on the forming roll 13 reaches the designed thickness, it is automatically cut off to become a standard board blank for subsequent process treatment; At the same time, after the slurry on the felt belt 5 is separated, the felt belt 5 will pass through the cleaning box 4 to clean the residual slurry on the felt belt 5 to ensure that the surface of the felt belt 5 is clean and clean, so as to avoid the residual slurry causing the subsequent blanks to have poor surface quality, sticky blanks, and blanks falling off when the felt belt 5 is circulated, thereby affecting the quality of the prepared calcium silicate board blanks. At the same time, the mechanisms for guiding and tensioning the felt belt 5 are prior arts, which are not drawn in detail in the drawings of the specification; At the same time, after the felt belt 5 enters the cleaning box 4, under the action of the upper guide roller 42 and the lower guide roller 43, the felt belt 5 will pass through the water in the cleaning box 4, so that the felt belt 5 is immersed and soaked in the water used for cleaning, so that the slurry on the felt belt 5 can be re-absorbed and diluted, so that the bonding force between the residual slurry and the felt belt 5 is weakened, and the residual slurry can be separated from the felt belt 5, thereby improving the cleaning effect of the felt belt 5. At the same time, when the felt belt 5 is immersed in water, the roller installed on the side wall of the cleaning box 4 The motor 451 drives the cleaning roller 45 to rotate, so that the cleaning roller 45 rubs and stirs the lower surface of the wool belt 5, that is, the surface of the wool belt 5 for carrying the slurry, and scrapes off the slurry remaining on the wool belt 5, thereby ensuring the cleaning effect of the wool belt 5. At the same time, when the cleaning roller 45 rotates, the cleaning roller 45 will drive the water to flow, so that the impact water flow will flush the surface of the wool belt 5, further accelerate and promote the separation of the slurry remaining on the surface of the wool belt 5, and improve the cleaning effect of the wool belt 5; At the same time, since the felt belt 5 is immersed in water, the cleaning roller 45 cleans the surface of the felt belt 5, so that all parts of the surface of the felt belt 5 can be cleaned, thereby avoiding the striped cleaning effect on the surface of the felt belt 5, resulting in residual slurry on the felt belt 5, and affecting the subsequent forming effect of the blank; At the same time, in the cleaning box 4, the water for cleaning is sent to the water spraying plate 44 through the water inlet pipe 441, so that the water is flushed downward from the water spraying plate 44 to impact the upper surface of the felt belt 5, and the water is discharged by the cleaning drain pipe 482 on the cleaning box 4, so that a water flow is formed between the upper and lower sides of the felt belt 5, so that the slurry that penetrates into the felt belt 5 or the other side during the slurry dehydration process is flushed and cleaned, further ensuring the cleanliness of the felt belt 5 and improving the subsequent slab forming effect; At the same time, since the water spray plate 44 is located above the woolen cloth belt 5 and the cleaning drainage pipe 482 is connected to the bottom surface of the cleaning box 4, when the woolen cloth belt 5 is cleaned, the water in the cleaning box 4 will flow from top to bottom, promoting the slurry cleaned from the woolen cloth belt 5 to move downward, making it easier for the cleaned slurry to be discharged from the cleaning box 4, thereby avoiding the cleaned slurry from adhering to the woolen cloth belt 5 again and affecting the cleaning effect of the woolen cloth belt 5.

[0021] As an embodiment of the present invention, symmetrically arranged rubber plates 411 are installed in the through opening 41, and the felt belt 5 passes between the rubber plates 411. The rubber plates 411 contact and squeeze the felt belt 5, and the rubber plates 411 seal the through opening 41. By arranging a rubber plate 411 at the through port 41, the through port 41 is relatively closed, thereby reducing the possibility of water in the cleaning box 4 leaking from the through port 41 during the cleaning process of the woolen belt 5. At the same time, since the rubber plate 411 contacts and squeezes the woolen belt 5, the woolen belt 5 is relatively stable at the through port 41, thereby preventing the woolen belt 5 from shaking, causing the woolen belt 5 to shift in the cleaning box 4, and affecting the cleaning effect of the woolen belt 5.

[0022] As an embodiment of the present invention, the cross section of the rubber plate 411 is a horizontally placed "human" shape, and the tip of the "human" shape moves in the opposite direction to the felt belt 5; Since the rubber sheet 411 is in the shape of a "human" placed horizontally, when the wool belt 5 enters the cleaning box 4 from the through port 41, the slurry remaining on the surface of the wool belt 5 will be scraped and cleaned by the rubber sheet 411, thereby reducing the amount of slurry remaining on the wool belt 5 entering the cleaning box 4, making it easier for the wool belt 5 to be cleaned in the cleaning box 4. At the same time, it can also avoid excessive slurry remaining on the wool belt 5, resulting in a relatively large amount of slurry cleaned in the cleaning box 4, causing the water in the cleaning box 4 to quickly become dirty, affecting the cleaning effect of the wool belt 5, and shortening the maintenance cycle of the cleaning box 4. At the same time, when the wool belt 5 enters the cleaning box 4, the "human" shape of the rubber sheet 411 placed horizontally will cause the fallen slurry to be located outside the cleaning box 4, making it convenient to collect the slurry cleaned by the rubber sheet 411 for recycling. At the same time, when the felt belt 5 leaves the cleaning box 4 from the through port 41, the rubber plate 411 squeezes and scrapes the felt belt 5 to clean the residual water on the felt belt 5, so that the felt belt 5 leaving the cleaning box 4 carries relatively less water, thereby preventing the felt belt 5 from containing too much water, which may affect the stable distribution of the slurry on the felt belt 5 when the felt belt 5 carries the slurry again, and affect the forming effect of the blank. At the same time, the rubber plate 411 squeezes the felt belt 5 leaving the cleaning box 4, thereby preventing the felt belt 5 from bringing out the water in the cleaning box 4, thereby causing the water in the cleaning box 4 to leak and cause ground pollution. At the same time, the water after cleaning the felt belt 5 in the cleaning box 4 will enter the sedimentation tank or other equipment for treatment, and the slurry carried in the water will be recovered to avoid slurry waste and direct discharge of cleaning water to cause environmental pollution.

[0023] As an embodiment of the present invention, a magnetic block 412 is installed at one end of the rubber plate 411 close to the felt belt 5, and there is a magnetic force of mutual attraction between the magnetic blocks 412; By installing a magnetic block 412 on the rubber plate 411, the rubber plates 411 above and below the felt belt 5 are attracted to each other and come close to each other, thereby increasing the pressing force of the rubber plate 411 on the felt belt 5, thereby increasing the cleaning effect of the rubber plate 411 on the slurry and water remaining on the felt belt 5, thereby preventing the rubber plate 411 from aging and loosening or the felt belt 5 from shaking, thereby affecting the cleaning effect of the felt belt 5; At the same time, the rubber plates 411 will be close to each other under the action of the magnetic block 412, further ensuring the sealing effect of the rubber plates 411 on the through opening 41, and preventing the water in the cleaning box 4 from leaking out and polluting the ground.

[0024] As an embodiment of the present invention, a plurality of partitions 46 are installed on the bottom surface of the cleaning box 4, and the partitions 46 divide the space in the cleaning box 4 into a plurality of cleaning compartments. The upper ends of the partitions 46 are in contact with the lower surface of the felt belt 5, and the cleaning rollers 45 are arranged in the cleaning compartments. After the partition 46 is installed in the cleaning box 4, the space below the wool belt 5 in the cleaning box 4 will be divided into a plurality of cleaning compartments, and each cleaning compartment is relatively isolated from each other, thereby avoiding or reducing the flow of water in the cleaning box 4 between different cleaning compartments, so that the water in the cleaning compartment close to the leaving direction of the wool belt 5 in the cleaning box 4 is relatively clean, so that the wool belt 5 is subjected to multi-stage cleaning in the process of passing through the cleaning box 4, and each stage of cleaning will be cleaner than the previous stage, thereby effectively improving the cleaning effect of the wool belt 5, and avoiding the slurry that falls off the wool belt 5 from polluting the water in the cleaning box 4, causing the fallen slurry to re-attach to the wool belt 5 when the wool belt 5 is about to leave the cleaning box 4, affecting the cleaning effect of the wool belt 5; At the same time, the partition 46 is in contact with the lower surface of the woolen cloth belt 5, and will scrape the surface of the woolen cloth belt 5 again when the woolen cloth belt 5 passes through, further promoting the separation of the residual slurry on the woolen cloth belt 5, and preventing the residual slurry on the woolen cloth belt 5 from being brought into the cleaning grid of the next level, thereby improving the cleaning effect of the woolen cloth belt 5 and ensuring that the subsequent forming effect of the blank is good.

[0025] As an embodiment of the present invention, a brush plate 47 is installed on the inner wall of the cleaning box 4, and the brush plate 47 is in contact with the side of the wool belt 5, and the brush plate 47 closes the gap between the wool belt 5 and the inner wall of the cleaning box 4; Since the wool belt 5 is immersed in the water in the cleaning box 4, during the movement of the wool belt 5, the water in the previous cleaning grid of the wool belt 5 may be entrained and brought into the cleaning grid of the next level from above the partition 46 and the gap between the wool belt 5 and the inner wall of the cleaning box 4, thereby affecting the cleaning effect of the multi-level cleaning grid on the wool belt 5. Therefore, the gap between the wool belt 5 and the inner wall of the cleaning box 4 is blocked and closed by the brush plate 47, thereby reducing the flow of water between different cleaning grids, avoiding the cleaned slurry from being entrained into the cleaning grid of the next level, affecting the cleaning effect of the wool belt 5; At the same time, since there are gaps between the bristles on the brush plate 47 and the bristles can bend and deform, the slurry flushed from the wool belt 5 by the water spray plate 44 can also smoothly pass through the brush plate 47, reach the bottom of the wool belt 5, and then be smoothly discharged from the cleaning box 4.

[0026] As an embodiment of the present invention, a connecting pipe 481 is installed on the bottom surface of the cleaning box 4, and the connecting pipe 481 corresponds to the cleaning grid one by one. The bottom surface of the cleaning box 4 is inclined, and the connecting pipe 481 is located at the lower end of the bottom surface. A one-way valve is installed on the connecting pipe 481. The end of the connecting pipe 481 away from the cleaning box 4 is installed with a collection box 48 through a mounting rod 483, and the cleaning drain pipe 482 is connected to the collection box 48; By providing a plurality of connecting pipes 481 and an inclined bottom surface in the cleaning box 4, the water in each cleaning compartment and the cleaned slurry can be smoothly discharged from the cleaning box 4, thereby avoiding the need for the water in different cleaning compartments to be gathered together before being discharged from the cleaning box 4, thereby avoiding the mixing of the cleaned slurry in the cleaning compartments, causing mixed contamination between the cleaning compartments, and affecting the cleaning effect of the wool belt 5.

[0027] As an embodiment of the present invention, the headboxes 11 are provided in multiple groups, and the number of the headboxes 11 is at least three; By setting up multiple groups of headboxes 11, the slurry can be buffered in the first headbox 11 after entering the headbox 11, so as to stabilize the state of the slurry and avoid stirring the slurry directly after entering the headbox 11, thereby avoiding impact and tumbling between the slurries, which leads to unstable slurry state, thereby ensuring stable outflow of the slurry during discharge, so that the slurry can be evenly laid on the felt belt 5. At the same time, with the felt belt 5 having a clean and tidy surface after cleaning, the molding quality of the blank is fully improved.

[0028] The specific workflow is as follows: When forming the calcium silicate board, the slurry is applied to the felt belt 5 from the headbox 11. After the slurry on the felt belt 5 is dehydrated by the natural dehydration box 2 and the vacuum dehydration box 3, the slurry reaches the breast roller 12 at the right end of the frame 1. After being squeezed between the forming roller 13 and the breast roller 12, the slurry on the felt belt 5, that is, the dehydrated blank, is bonded to the forming roller 13. After the blank on the forming roller 13 reaches the designed thickness, it is automatically cut off to become a standard slab for subsequent processing; At the same time, after the slurry on the felt belt 5 is separated, the felt belt 5 will pass through the cleaning box 4 to clean the slurry remaining on the felt belt 5; At the same time, after the wool belt 5 enters the cleaning box 4, under the action of the upper guide roller 42 and the lower guide roller 43, the wool belt 5 will pass through the water in the cleaning box 4, so that the wool belt 5 is immersed and soaked in the water used for cleaning, so that the slurry on the wool belt 5 can absorb water and be diluted again, so that the bonding force between the residual slurry and the wool belt 5 is weakened, and the residual slurry can be separated from the wool belt 5. At the same time, when the wool belt 5 is immersed in the water, the motor 451 installed on the side wall of the cleaning box 4 drives the cleaning roller 45 to rotate, so that the cleaning roller 45 rubs and stirs the lower surface of the wool belt 5, that is, the surface of the wool belt 5 used to carry the slurry, and scrapes off the residual slurry on the wool belt 5. At the same time, when the cleaning roller 45 rotates, the cleaning roller 45 will drive the water to flow, so that the impact water flow will wash the surface of the wool belt 5; At the same time, in the cleaning box 4, the cleaning water is sent to the water spraying plate 44 through the water inlet pipe 441, so that the water is flushed downward from the water spraying plate 44, and the water is discharged by the cleaning drain pipe 482 on the cleaning box 4, so that a water flow is formed between the upper and lower parts of the felt belt 5, so that the slurry that penetrates into the felt belt 5 or the other side during the slurry dehydration process is flushed and cleaned; At the same time, the water in the cleaning box 4 will flow from top to bottom, promoting the slurry cleaned from the felt belt 5 to move downward, making it easier for the cleaned slurry to be discharged from the cleaning box 4; By providing the rubber plate 411, the through opening 41 is relatively closed, so that the felt belt 5 is relatively stable at the through opening 41; Since the rubber sheet 411 is in the shape of a "human" placed horizontally, when the felt belt 5 enters the cleaning box 4 from the through opening 41, the slurry remaining on the surface of the felt belt 5 will be scraped and cleaned by the rubber sheet 411; At the same time, when the felt belt 5 leaves the cleaning box 4 from the through opening 41, the rubber plate 411 squeezes and scrapes the felt belt 5 to clean the residual water on the felt belt 5, so that the felt belt 5 leaving the cleaning box 4 carries relatively less water; By installing a magnetic block 412 on the rubber plate 411, the rubber plates 411 above and below the felt belt 5 are attracted to each other and close to each other, thereby increasing the pressing force of the rubber plate 411 on the felt belt 5, thereby increasing the cleaning effect of the rubber plate 411 on the slurry and water remaining on the felt belt 5; After the partition 46 is installed in the cleaning box 4, the space below the wool belt 5 in the cleaning box 4 will be divided into a plurality of cleaning compartments, and each cleaning compartment is relatively isolated from each other, so as to avoid or reduce the flow of water in the cleaning box 4 between different cleaning compartments, so that the water in the cleaning compartment close to the direction of departure of the wool belt 5 in the cleaning box 4 is relatively clean, so that the wool belt 5 is subjected to multi-level cleaning in the process of passing through the cleaning box 4, and each level of cleaning will be cleaner than the previous level; At the same time, the partition plate 46 is in contact with the lower surface of the felt belt 5, and the surface of the felt belt 5 is scraped and cleaned again when the felt belt 5 passes through; The brush plate 47 is used to block and seal the gap between the felt belt 5 and the inner wall of the cleaning box 4, thereby reducing the flow of water between different cleaning grids and preventing the cleaned slurry from being carried into the cleaning grid of the next level; At the same time, since there are gaps between the bristles on the brush plate 47 and the bristles can be bent and deformed, the slurry washed off the felt belt 5 by the water spray plate 44 can also smoothly pass through the brush plate 47 and reach the bottom of the felt belt 5, and then be smoothly discharged from the cleaning box 4; By providing multiple groups of connecting pipes 481 and the inclined bottom surface in the cleaning box 4, the water in each cleaning compartment and the cleaned slurry can be smoothly discharged from the cleaning box 4, avoiding the need for the water in different cleaning compartments to be gathered together before being discharged from the cleaning box 4; By setting up multiple groups of headboxes 11, the slurry can be buffered in the first headbox 11 after entering the headbox 11, so as to stabilize the state of the slurry and avoid stirring the slurry directly after entering the headbox 11, thereby avoiding impact and tumbling between the slurries, which leads to unstable slurry state, thereby ensuring stable outflow of the slurry during discharge, so that the slurry can be evenly laid on the felt belt 5. At the same time, with the felt belt 5 having a clean and tidy surface after cleaning, the molding quality of the blank is fully improved.

[0029] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A plate-making and forming device for improving the quality of calcium silicate board blanks, comprising a frame (1). A headbox (11), a felt belt (5), a breast roll (12) and a forming roll (13) are installed on the frame (1). A cleaning box (4) is also installed on the frame (1), and the cleaning box (4) cleans the felt belt (5) passing through the breast roll (12). Features: A through-opening (41) is formed in the cleaning box (4), and the felt belt (5) passes through the cleaning box (4) from the through-opening (41). An upper guide roll (42) and a lower guide roll (43) are installed in the cleaning box (4) from top to bottom. The upper guide roll (42) and the lower guide roll (43) make the felt belt (5) in a "U" shape in the cleaning box (4), and the plane where the upper guide roll (42) is located is flush with the through-opening (41). A water spraying plate (44) is installed in the cleaning box (4), and the water spraying plate (44) is located above the horizontal part of the "U". The liquid level in the cleaning box (4) is between the upper guide roll (42) and the lower guide roll (43). A water inlet pipe (441) is installed on the water spraying plate (44), and a cleaning drain pipe (482) is installed on the bottom surface of the cleaning box (4). A cleaning roll (45) is installed in the cleaning box (4), and the cleaning roll (45) is in contact with the lower surface of the felt belt (5). The rotation direction of the cleaning roll (45) is opposite to the movement direction of the felt belt (5).

2. A plate-making and forming device for improving the quality of calcium silicate board blanks according to claim 1, characterized in that: Symmetrically arranged rubber plates (411) are installed in the through-opening (41), and the felt belt (5) passes between the rubber plates (411). The rubber plates (411) contact and squeeze the felt belt (5), and the rubber plates (411) close the through-opening (41).

3. A plate-making and forming device for improving the quality of calcium silicate board blanks according to claim 2, characterized in that: The cross-section of the rubber plate (411) is in the shape of an inverted "V" placed horizontally, and the tip of the inverted "V" is opposite to the movement direction of the felt belt (5).

4. A plate-making and forming device for improving the quality of calcium silicate board blanks according to claim 3, characterized in that: Magnetic blocks (412) are installed at one end of the rubber plate (411) close to the felt belt (5), and there is a magnetic force of mutual attraction between the magnetic blocks (412).

5. A plate-making and forming device for improving the quality of calcium silicate board blanks according to claim 1, characterized in that: Multiple groups of partition plates (46) are installed on the bottom surface of the cleaning box (4). The partition plates (46) divide the space in the cleaning box (4) into multiple cleaning grids. The upper ends of the partition plates (46) are exactly in contact with the lower surface of the felt belt (5), and cleaning rolls (45) are arranged in each cleaning grid.

6. A plate-making and forming device for improving the quality of calcium silicate board blanks according to claim 5, characterized in that: A brush plate (47) is installed on the inner wall of the cleaning box (4), and the brush plate (47) is in contact with the side surface of the felt belt (5). The brush plate (47) closes the gap between the felt belt (5) and the inner wall of the cleaning box (4).

7. A plate-making and forming device for improving the quality of calcium silicate board blanks according to claim 5, characterized in that: A connecting pipe (481) is installed on the bottom surface of the cleaning box (4), and the connecting pipe (481) corresponds to the cleaning grid one by one. The bottom surface of the cleaning box (4) is arranged obliquely, and the connecting pipe (481) is located at the lower end of the bottom surface. A one-way valve is installed on the connecting pipe (481). The end of the connecting pipe (481) away from the cleaning box (4) is installed with a collection box (48) through a mounting rod (483), and the cleaning drainage pipe (482) is connected to the collection box (48).

8. A plate-making and forming device for improving the quality of calcium silicate board blanks according to claim 1, characterized in that: The headboxes (11) are provided in multiple groups, and the number of the headboxes (11) is at least three.

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