Drying equipment for producing high-grade water-resistant gypsum board and gypsum board production process

Abstract

The present invention provides drying equipment for producing advanced water-resistant paper-faced gypsum board and a gypsum board production process, which relates to the technical field of gypsum board drying. The present invention includes a mixing box, a molding box and a drying structure. The top of the mixing box is connected to a feed pipe, the bottom of the mixing box is fixedly connected to a pump body, the input end and the output end of the pump body are both connected to pipelines, the mixing box and the molding box are connected to each other through two pipelines of the pump body, the molding box is provided with a drying structure at one end away from the mixing box, the drying structure includes a drying box, the input end of the drying box is connected to the molding box, and a first motor is fixedly installed on the surface of the drying box. By providing a drying structure, the present invention solves the problem that the position of the fan is generally fixed and can only blow in a certain direction, which makes the gypsum board unevenly dried and the drying effect poor, and the hot air blown out by the fan only blows in one direction, which is easy to damage the gypsum board.

Description

Technical Field

[0001] The invention relates to the technical field of gypsum board drying, in particular to drying equipment for producing high-grade water-resistant paper-faced gypsum boards and a gypsum board production process. Background Art

[0002] Gypsum board is made of building gypsum as the main raw material, with appropriate amount of additives and fiber as the board core, and special board paper as the surface. It is processed into a board. Gypsum board has the characteristics of light weight, sound insulation, heat insulation, strong processing performance and simple construction method. Gypsum board can be divided into four categories: ordinary, water-resistant, fire-resistant and moisture-proof.

[0003] When drying gypsum board, the gypsum board is usually placed inside a drying box and dried directly by a fan. However, the position of the fan is generally fixed and can only blow air in one direction, which makes the gypsum board unevenly dried and has a poor drying effect. Moreover, the hot air blown by the fan only blows in one direction, which can easily damage the gypsum board. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a drying device for producing advanced water-resistant gypsum board.

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a drying device for producing high-grade water-resistant paper-faced gypsum board, comprising a mixing box, a molding box and a drying structure, wherein the top of the mixing box is connected with a feeding pipe, the bottom of the mixing box is fixedly connected with a pump body, the input end and the output end of the pump body are both connected with pipelines, the mixing box and the molding box are connected with each other through two pipelines of the pump body, and the molding box is provided with a drying structure at one end away from the mixing box, the drying structure comprises a drying box, the input end of the drying box is connected with the molding box, a first motor is fixedly installed on the surface of the drying box, a first gear is fixedly connected to the output shaft port of the first motor, the surface of the drying box is connected with a connection box, a fan is fixedly installed on the surface of the connection box, the output end of the fan is connected with a bellows, the surface of the bellows is fixedly connected with the connection box, the bottom of the connection box is connected with a T-tube, the surface of the T-tube passes through the drying box, and the surface of the T-tube located inside the drying box is evenly provided with through holes, a filter is fixedly installed inside the bellows, and a heating net is fixedly installed inside the connection box.

[0006] Preferably, the drying box is composed of a first box body, a ring box and a second box body, the two ends of the ring box are respectively connected to the first box body and the second box body, the two ends of the ring box are respectively rotatably connected to the first box body and the second box body, the end of the first box body away from the ring box is connected to the molding box, and the end of the second box body away from the ring box is provided with a discharge port.

[0007] Preferably, a fixing block is fixedly connected to the side wall of the drying box, and the first motor is fixedly connected to the drying box by means of the fixing block.

[0008] Preferably, a second gear is fixedly connected to the surface of the annular box, and the surface of the first gear is meshed with the second gear.

[0009] Preferably, a stirring device is provided at the bottom of the stirring box, and the stirring device includes a second motor, the surface of the second motor is fixedly connected to the stirring box, the output shaft surface of the second motor rotates and penetrates the stirring box, the output shaft port of the second motor is fixedly connected to a stirring paddle, the side wall of the stirring box is slidably inserted with a filter box, the side of the stirring box close to the filter box is rotatably connected to a limiting plate, the inside of the feeding pipe is rotatably connected to two sealing plates, two sliding blocks are provided at the bottom of the sealing plate, the side of the sliding block away from the sealing plate is rotatably connected to a sliding frame, the end of the sliding frame away from the sliding block is fixedly connected to a first spring, and a limiting frame is fixedly installed on the inner wall of the feeding pipe.

[0010] Preferably, a vertical groove is provided on the inner wall of the feed pipe relative to the position of the sliding frame, the surface of the sliding frame is slidably connected to the vertical groove, and one end of the first spring away from the sliding frame is fixedly connected to the vertical groove.

[0011] Preferably, a long groove is provided at the bottom of the sealing plate relative to the position of the sliding block, and the surface of the sliding block is slidably connected to the long groove.

[0012] Preferably, an auxiliary device is provided inside the filter box, and the auxiliary device includes a third motor, the surface of the third motor is fixedly connected to the filter box, the output end of the third motor is fixedly connected to a screw, the end of the screw away from the third motor is rotatably connected to the filter box, the surface of the screw is threadedly connected to a slide, the bottom of the slide is fixedly connected to a second spring, the end of the second spring away from the slide is fixedly connected to a connecting plate, the side wall of the connecting plate is provided with a slot, a brush plate is slidably inserted inside the slot, the surface of the connecting plate close to the slide is threadedly penetrated by a second bolt, the side of the connecting plate away from the slot is threadedly penetrated by a first bolt, and the end of the first bolt located inside the slot is rotatably connected to a round block.

[0013] Preferably, a slide groove is provided on the inner wall of the filter box, and the surface of the slide plate is slidably connected to the slide groove.

[0014] Preferably, a telescopic rod is provided inside the second spring, and both ends of the telescopic rod are fixedly connected to the connecting plate and the slide plate respectively. The telescopic rod is composed of a large rod sleeved with a small rod, and the surface of the small rod is slidably connected to the large rod.

[0015] A production process for high-grade water-resistant gypsum board, which uses the drying equipment for producing high-grade water-resistant gypsum board described above.

[0016] Compared with the prior art, the advantages and positive effects of the present invention are:

[0017] 1. In the present invention, by setting a drying structure, when the gypsum board is transmitted to the drying box through the transmission mechanism inside the forming box, the fan is started, and the fan allows the wind to pass through the filter screen of the wind box, and the dust and impurities outside are filtered by the filter screen, and then the wind passes through the heating net inside the connecting box to achieve the purpose of heating the wind, and then the hot air is blown out from the through hole through the T-tube to dry the gypsum board inside the drying box. At the same time, the first motor is started, the first motor drives the first gear to rotate, and the first gear drives the second gear to rotate. Since the two ends of the annular box are respectively rotatably connected to the first box body and the second box body, the second gear drives the annular box to rotate, so that the blown wind can be evenly blown to the surface of the gypsum board, avoiding the phenomenon that the drying is uneven and the drying effect is poor due to the blowing in only one direction, and solves the problem that the position of the fan is generally fixed and can only blow in a certain direction, which makes the gypsum board unevenly dried and the drying effect is poor, and the hot air blown by the fan is only blown in one direction, which is easy to damage the gypsum board.

[0018] 2. In the present invention, by setting a stirring device, during stirring, the powdered raw materials need to be stirred and mixed, and then the viscous mixed raw materials are formed inside the molding box transmitted by the pump body and the pipeline. However, during stirring, the raw material particles of different sizes are not screened, which may cause the gypsum raw materials to be stirred insufficiently. Moreover, during stirring, the powdered raw materials are prone to dust, which pollutes the processing environment. At this time, the filter box is used to filter the powdered raw materials, and the two limit plates are rotatably connected to the stirring box, and the two limit plates are used to filter the inserted filter box. Limiting is used to prevent the filter box from separating from the mixing box due to vibration during stirring. Two sealing plates are arranged inside the feed pipe. When the material is put in through the feed pipe, the two sealing plates rotate under the influence of the gravity of the raw materials, so that the material enters the mixing box. When there is no material on the surface of the sealing plate, the sliding frame rises under the action of the first spring, and the sliding frame uses the slider to rotate the two sealing plates upward. The limiting frame serves to limit the rotation of the sealing plate, so that the feed pipe is sealed with the two sealing plates. When screening and stirring are performed, dust will not fly out through the feed pipe, thereby achieving the purpose of protecting the environment.

[0019] 3. In the present invention, by setting an auxiliary device, the filter box may block the sieve hole when filtering, thereby reducing the filtering speed. At this time, the third motor is started, and the third motor drives the screw to rotate. The slide groove limits the slide plate, and the slide plate is driven by the screw to move back and forth. The connecting plate at the bottom of the slide plate and the brush plate engaged with the connecting plate are used to clean the filter screen to avoid clogging of the filter screen. The second spring makes the connecting plate always subjected to elastic force, so that the contact effect between the brush plate and the filter screen is better. The second bolt prevents the brush plate inserted into the connecting plate slot from falling off. The round block is rotatably connected to the first bolt. The brush plate can be squeezed out by the first bolt when disassembling the brush plate, so as to avoid the brush plate being stuck too tightly and unable to be pulled out during disassembly, thereby achieving the purpose of convenient installation and disassembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 The present invention provides a three-dimensional structural schematic diagram of a drying device for producing advanced water-resistant gypsum board;

[0021] Figure 2 The present invention provides a first motor structure schematic diagram of a drying device for producing advanced water-resistant gypsum board;

[0022] Figure 3 A schematic diagram of through holes of a drying device for producing high-grade water-resistant gypsum board is provided for the present invention;

[0023] Figure 4 The present invention provides a schematic diagram of the internal structure of a ring box drying device for producing high-grade water-resistant gypsum board;

[0024] Figure 5 The present invention proposes a drying device for producing high-grade water-resistant gypsum board Figure 4 Schematic diagram at A in the middle;

[0025] Figure 6 The present invention provides a schematic diagram of the pump structure of a drying device for producing high-grade water-resistant gypsum board;

[0026] Figure 7 The present invention provides a schematic diagram of the structure of a stirring device for drying equipment used in the production of advanced water-resistant gypsum board;

[0027] Figure 8 The present invention provides a schematic diagram of the structure of a slider of a drying device for producing advanced water-resistant gypsum board;

[0028] Fig. 9 The present invention provides a schematic diagram of the structure of the auxiliary device of the drying equipment for producing high-grade water-resistant gypsum board;

[0029] Fig.10 The present invention proposes a drying device for producing high-grade water-resistant gypsum board Fig. 9 Schematic diagram at point B in the middle.

[0030] Legend: 1. Feeding pipe; 2. Mixing box; 3. Forming box; 4. Pump body; 5. Drying structure; 501. Heating net; 502. First gear; 503. First motor; 504. Fixing block; 505. Second gear; 506. Filter; 507. T-tube; 508. Through hole; 509. Connection box; 510. Fan; 512. Drying box; 511. Bellows; 5121. First box; 5122. Ring box; 5123. Second box ; 6. stirring device; 61. limit frame; 62. sealing plate; 63. slider; 64. sliding frame; 65. first spring; 66. filter box; 67. limit plate; 68. second motor; 69. stirring paddle; 7. auxiliary device; 701. screw; 702. slide plate; 703. third motor; 704. slide groove; 705. brush plate; 706. second spring; 707. connecting plate; 708. first bolt; 709. second bolt; 710. round block. DETAILED DESCRIPTION

[0031] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0032] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0033] Embodiment 1, as Figure 1-10 As shown, the present invention provides a drying device for producing advanced water-resistant paper-faced gypsum board, including a mixing box 2, a molding box 3 and a drying structure 5. The top of the mixing box 2 is connected to a feed pipe 1, and the bottom of the mixing box 2 is fixedly connected to a pump body 4. The input end and the output end of the pump body 4 are both connected to pipelines. The mixing box 2 and the molding box 3 are connected to each other through two pipelines of the pump body 4.

[0034] The specific arrangement and functions of the drying structure 5, the stirring device 6 and the auxiliary device 7 are described in detail below.

[0035] like Figure 3 and Figure 5As shown, a drying structure 5 is provided at one end of the molding box 3 away from the mixing box 2, and the drying structure 5 includes a drying box 512, the input end of the drying box 512 is connected to the molding box 3, the surface of the drying box 512 is fixedly installed with a first motor 503, the output shaft port of the first motor 503 is fixedly connected with a first gear 502, the surface of the drying box 512 is connected with a connecting box 509, the surface of the connecting box 509 is fixedly installed with a fan 510, the output end of the fan 510 is connected with a bellows 511, the surface of the bellows 511 is fixedly connected to the connecting box 509, the bottom of the connecting box 509 is connected with a T-tube 507, and the T-tube 507 is connected with the T-tube 507. The surface of the T-tube 507 passes through the drying box 512, and the surface of the T-tube 507 located inside the drying box 512 is uniformly provided with through holes 508. The filter screen 506 is fixedly installed inside the wind box 511, and the heating net 501 is fixedly installed inside the connecting box 509. The drying box 512 is composed of a first box body 5121, a ring box 5122 and a second box body 5123. The two ends of the ring box 5122 are respectively connected to the first box body 5121 and the second box body 5123. The two ends of the ring box 5122 are respectively connected to the first box body 5121 and the second box body 5123. The first box body 5121 is away from the ring box 5122. One end is connected with the forming box 3, and the second box body 5123 is provided with a discharge port away from the end of the ring box 5122. The side wall of the drying box 512 is fixedly connected with a fixing block 504. The first motor 503 is fixedly connected with the drying box 512 by means of the fixing block 504. The surface of the ring box 5122 is fixedly connected with a second gear 505. The surface of the first gear 502 is meshed with the second gear 505. The fan 510 is started, and the fan 510 allows the wind to pass through the filter screen 506 of the wind box 511, and the dust and impurities outside are filtered by the filter screen 506, and then pass through the heating net 501 inside the connection box 509 to heat the wind. For the purpose of heat, the hot air is blown out from the through hole 508 through the T-tube 507 to dry the gypsum board inside the drying box 512, and at the same time, the first motor 503 is started, and the first motor 503 drives the first gear 502 to rotate, and the first gear 502 drives the second gear 505 to rotate. Since the two ends of the annular box 5122 are respectively rotatably connected to the first box body 5121 and the second box body 5123, the second gear 505 drives the annular box 5122 to rotate, so that the blown wind can be evenly blown to the surface of the gypsum board, avoiding the phenomenon of uneven drying and poor drying effect caused by blowing in only one direction.

[0036] The effect achieved by the entire drying structure 5 is that, by setting the drying structure 5, when the gypsum board is transmitted to the drying box 512 through the transmission mechanism inside the forming box 3, the fan 510 is started, and the fan 510 allows the wind to pass through the filter 506 of the wind box 511, and the dust and impurities outside are filtered by the filter 506, and then pass through the heating net 501 inside the connecting box 509 to achieve the purpose of heating the wind, and then the hot wind is blown out from the through hole 508 through the T-tube 507 to dry the gypsum board inside the drying box 512, and at the same time, the first motor 503 is started, and the first motor 503 drives the first gear 502 to The first gear 502 drives the second gear 505 to rotate. Since the two ends of the annular box 5122 are respectively rotatably connected to the first box body 5121 and the second box body 5123, the second gear 505 drives the annular box 5122 to rotate, so that the blown wind can be evenly blown to the surface of the gypsum board, avoiding the phenomenon of uneven drying and poor drying effect caused by blowing in only one direction. The position of the fan 510 is generally fixed, and it can only blow in a certain direction, which makes the gypsum board dry unevenly and the drying effect is poor, and the hot air blown by the fan 510 only blows in one direction, which is easy to damage the gypsum board.

[0037] like Figure 7 and Figure 8As shown, a stirring device 6 is provided at the bottom of the stirring box 2, and the stirring device 6 includes a second motor 68. The surface of the second motor 68 is fixedly connected to the stirring box 2. The surface of the output shaft of the second motor 68 rotates and penetrates the stirring box 2. The output shaft port of the second motor 68 is fixedly connected with a stirring paddle 69. A filter box 66 is slidably inserted into the side wall of the stirring box 2. A side of the stirring box 2 close to the filter box 66 is rotatably connected to a limiting plate 67. Two sealing plates 62 are rotatably connected to the inside of the feeding pipe 1. Two sliding blocks 63 are provided at the bottom of the sealing plate 62. A sliding frame 64 is rotatably connected to the side of the sliding frame 63 away from the sealing plate 62. A first spring 65 is fixedly connected to one end of the sliding frame 64 away from the sliding frame 63. A limiting frame 61 is fixedly installed on the inner wall of the feeding pipe 1. A vertical groove is provided on the inner wall of the feeding pipe 1 relative to the position of the sliding frame 64. The surface of the sliding frame 64 is slidably connected to the vertical groove. The end of the first spring 65 away from the sliding frame 64 is fixedly connected to the vertical groove. The bottom of the sealing plate 62 is relatively A long groove is provided at the position of the slider 63, and the surface of the slider 63 is slidably connected to the long groove, and the filter box 66 is used to filter the powder raw materials thrown in, and the two limit plates 67 are rotatably connected to the mixing box 2, and the inserted filter box 66 is limited by the two limit plates 67 to prevent the filter box 66 from being separated from the mixing box 2 due to vibration during mixing, and two sealing plates 62 are arranged inside the feed pipe 1. When the material is put in through the feed pipe 1, the two sealing plates 62 are affected by the gravity of the raw materials and rotate, so that the material enters the mixing box 2. When there is no material on the surface of the sealing plate 62, the sliding frame 64 is raised under the action of the first spring 65, and the sliding frame 64 uses the slider 63 to make the two sealing plates 62 rotate upward, and the limit frame 61 serves to limit the rotation of the sealing plate 62, so that the feed pipe 1 is sealed by the two sealing plates 62, and dust will not fly out through the feed pipe 1 during screening and mixing, thereby achieving the purpose of protecting the environment.

[0038] The effect achieved by the entire stirring device 6 is that, by setting the stirring device 6, when stirring, the powdered raw materials need to be stirred and mixed, and then the viscous mixed raw materials are formed inside the molding box 3 transmitted by the pump body 4 and the pipeline. However, when stirring, the raw material particles of different sizes are not screened, which may cause the gypsum raw materials to be not stirred sufficiently, and when stirring, the powdered raw materials are prone to dust and pollute the processing environment. At this time, the filter box 66 is used to filter the powdered raw materials, and the two limit plates 67 are rotatably connected to the stirring box 2, and the two limit plates 67 are used to limit the inserted filter box 66 to avoid The vibration during stirring causes the filter box 66 to separate from the mixing box 2. Two sealing plates 62 are arranged inside the feed pipe 1. When the material is put in through the feed pipe 1, the two sealing plates 62 rotate under the influence of the gravity of the raw materials, allowing the material to enter the mixing box 2. When there is no material on the surface of the sealing plate 62, the sliding frame 64 rises under the action of the first spring 65. The sliding frame 64 uses the slider 63 to rotate the two sealing plates 62 upward. The limit frame 61 serves to limit the rotation of the sealing plate 62, so that the feed pipe 1 is sealed by the two sealing plates 62. When screening and stirring are performed, dust will not fly out through the feed pipe 1, thereby achieving the purpose of protecting the environment.

[0039] Embodiment 2, on the basis of embodiment 1, as Fig. 9 and Fig.10As shown, an auxiliary device 7 is arranged inside the filter box 66, and the auxiliary device 7 includes a third motor 703. The surface of the third motor 703 is fixedly connected to the filter box 66. A screw 701 is fixedly connected to the output end of the third motor 703. The end of the screw 701 away from the third motor 703 is rotatably connected to the filter box 66. A slide plate 702 is threadedly connected to the surface of the screw 701. A second spring 706 is fixedly connected to the bottom of the slide plate 702. A connecting plate 707 is fixedly connected to the end of the second spring 706 away from the slide plate 702. A groove is provided on the side wall of the connecting plate 707. A brush plate 705 is inserted into the groove for sliding. A second bolt 709 is threadedly penetrated on the surface of the connecting plate 707 close to the slide plate 702. A first bolt 708 is threadedly penetrated on the side of the connecting plate 707 away from the groove. A round block 710 is rotatably connected to the end of the first bolt 708 located inside the groove. A slide groove 704 is provided on the inner wall of the filter box 66. The surface of the slide plate 702 slides with the slide groove 704. The second spring 706 is connected with a telescopic rod, and the two ends of the telescopic rod are fixedly connected to the connecting plate 707 and the slide plate 702 respectively. The third motor 703 is started, and the third motor 703 drives the screw rod 701 to rotate. The slide groove 704 limits the slide plate 702, and the slide plate 702 is driven by the screw rod 701 to reciprocate. The connecting plate 707 at the bottom of the slide plate 702 and the brush plate 705 engaged with the connecting plate 707 are used to clean the filter screen 506 to avoid clogging of the filter screen 506. The second spring 706 makes the connecting plate 707 always subjected to elastic force, so that the contact effect between the brush plate 705 and the filter screen 506 is better, and the second bolt 709 prevents the brush plate 705 inserted into the slot of the connecting plate 707 from falling off. The round block 710 is rotatably connected with the first bolt 708. The first bolt 708 can be used to squeeze out the brush plate 705 when disassembling it, so as to avoid the brush plate 705 being stuck too tightly and unable to be pulled out during disassembly, thereby achieving the purpose of convenient installation and disassembly.

[0040] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A drying device for producing high-grade water-resistant gypsum board, comprising a mixing box (2), a forming box (3) and a drying structure (5), wherein the top of the mixing box (2) is connected to a feed pipe (1), the bottom of the mixing box (2) is fixedly connected to a pump body (4), the input end and the output end of the pump body (4) are both connected to pipelines, the mixing box (2) and the forming box (3) are connected to each other through two pipelines of the pump body (4), and the device is characterized in that: A drying structure (5) is provided at one end of the molding box (3) away from the stirring box (2), wherein the drying structure (5) comprises a drying box (512), and the drying box (512) is provided with a rotatable annular box (5122); The drying box (512) is further provided with a first box body (5121) and a second box body (5123); the two ends of the annular box (5122) are rotatably connected to the first box body (5121) and the second box body (5123), respectively; the end of the first box body (5121) away from the annular box (5122) is connected to the forming box (3); and the end of the second box body (5123) away from the annular box (5122) is provided with a discharge port; The input end of the drying box (512) is connected to the forming box (3); a first motor (503) is fixedly mounted on the surface of the drying box (512); an output shaft port of the first motor (503) is fixedly connected to a first gear (502); a second gear (505) is fixedly connected to the surface of the annular box (5122); the surface of the first gear (502) and the second gear (505) are meshed; a connection box (509) is connected to the surface of the annular box (5122); a fan (512) is fixedly mounted on the surface of the connection box (509); 0), the output end of the fan (510) is connected to a bellows (511), the surface of the bellows (511) is fixedly connected to a connection box (509), the bottom of the connection box (509) is connected to a T-tube (507), the surface of the T-tube (507) passes through a drying box (512), the surface of the T-tube (507) located inside the drying box (512) is evenly provided with through holes (508), a filter screen (506) is fixedly installed inside the bellows (511), and a heating screen (501) is fixedly installed inside the connection box (509).

2. The drying equipment for producing high-grade water-resistant gypsum board according to claim 1 is characterized in that: A fixing block (504) is fixedly connected to the side wall of the drying box (512), and the first motor (503) is fixedly connected to the drying box (512) by means of the fixing block (504).

3. The drying equipment for producing high-grade water-resistant gypsum board according to claim 1 is characterized in that: A stirring device (6) is provided at the bottom of the stirring box (2), and the stirring device (6) comprises a second motor (68). The surface of the second motor (68) is fixedly connected to the stirring box (2). The surface of the output shaft of the second motor (68) rotates and penetrates the stirring box (2). The output shaft port of the second motor (68) is fixedly connected to a stirring paddle (69). A filter box (66) is slidably inserted into the side wall of the stirring box (2). A side of the stirring box (2) close to the filter box (66) is rotatably connected to a limiting plate (67). Two sealing plates (62) are rotatably connected inside the feeding pipe (1). Two sliding blocks (63) are provided at the bottom of the sealing plate (62). A sliding frame (64) is rotatably connected to the side of the sliding block (63) away from the sealing plate (62). A first spring (65) is fixedly connected to the end of the sliding frame (64) away from the sliding block (63). A limiting frame (61) is fixedly installed on the inner wall of the feeding pipe (1).

4. The drying equipment for producing high-grade water-resistant gypsum board according to claim 3 is characterized in that: A vertical groove is provided on the inner wall of the feed pipe (1) at a position relative to the sliding frame (64); the surface of the sliding frame (64) is slidably connected to the vertical groove; and one end of the first spring (65) away from the sliding frame (64) is fixedly connected to the vertical groove.

5. The drying equipment for producing high-grade water-resistant gypsum board according to claim 3 is characterized in that: A long groove is provided at the bottom of the sealing plate (62) relative to the position of the sliding block (63), and the surface of the sliding block (63) is slidably connected to the long groove.

6. The drying equipment for producing high-grade water-resistant gypsum board according to claim 3 is characterized in that: An auxiliary device (7) is provided inside the filter box (66), and the auxiliary device (7) comprises a third motor (703). The surface of the third motor (703) is fixedly connected to the filter box (66). The output end of the third motor (703) is fixedly connected to a screw rod (701). One end of the screw rod (701) away from the third motor (703) is rotatably connected to the filter box (66). The surface of the screw rod (701) is threadedly connected to a slide plate (702). The bottom of the slide plate (702) is fixedly connected to a second spring ( 706), one end of the second spring (706) away from the slide plate (702) is fixedly connected to a connecting plate (707), a side wall of the connecting plate (707) is provided with a slot, a brush plate (705) is slidably inserted inside the slot, a second bolt (709) is threadedly penetrated on the surface of the connecting plate (707) close to the slide plate (702), a first bolt (708) is threadedly penetrated on the side of the connecting plate (707) away from the slot, and one end of the first bolt (708) located inside the slot is rotatably connected to a round block (710).

7. The drying equipment for producing high-grade water-resistant gypsum board according to claim 6 is characterized in that: The inner wall of the filter box (66) is provided with a slide groove (704), the surface of the slide plate (702) is slidably connected to the slide groove (704), and a telescopic rod is provided inside the second spring (706), and the two ends of the telescopic rod are respectively fixedly connected to the connecting plate (707) and the slide plate (702).

8. The production process of advanced water-resistant gypsum board is characterized by: The water-resistant gypsum board production process uses the drying equipment for producing high-grade water-resistant gypsum board as described in any one of claims 1 to 7 above.

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