Drying device for gypsum board production and using method thereof

Abstract

The invention relates to the technical field of gypsum board drying, in particular to a drying device for gypsum board production and a using method thereof.The drying device for gypsum board production comprises a drying box, an air exhaust hood is installed on the drying box, an air exhaust pump is arranged on the air exhaust hood, and one end of the air exhaust pump is connected with an exhaust pipe; the device further comprises a purification box, a filter screen, a first purification frame, a second purification frame and a third purification frame, and the air inlet end of the purification box is connected with the exhaust pipe. Through work of a sucking pump and an exhaust pump, waste gas generated in the drying box can be introduced into a purification box through an exhaust pipe, the entered waste gas sequentially passes through a filter screen, a first purification frame, a second purification frame and a third purification frame, and impurities in the filtered waste gas can be filtered through the filter screen; harmful gases such as VOCs, nitrogen oxides and sulfur dioxide contained in the waste gas can be fully adsorbed and purified through common activated carbon layers, acidic activated carbon layers and alkaline activated carbon layers in the first purification frame, the second purification frame and the third purification frame.

Description

Technical Field

[0001] The invention relates to the technical field of gypsum board drying, and in particular to a drying device for gypsum board production and a use method thereof. Background Art

[0002] Gypsum board is a material made of building gypsum as the main raw material. It is a building material with light weight, high strength, thin thickness, easy processing, good sound insulation, heat insulation and fire resistance. It is one of the new lightweight panels that are currently being developed. When processing gypsum board, it needs to be dried after cutting, so the dryer of the gypsum board production line will be used.

[0003] The invention disclosure number is "CN114812145B", which is a drying device for gypsum board production and a drying method thereof, comprising a drying box, a steam-water separator installed on the top surface of the drying box, a drying chamber opened inside the drying box, hot air blowers installed at both ends of the drying chamber, a conveyor belt arranged on the bottom surface of the drying chamber, a plurality of steam-water separators arranged in series on the top of the drying box, and by filling the drying chamber with carbon dioxide gas and setting sealing inlet and outlet mechanisms at both ends of the drying chamber, on the one hand, the carbon dioxide gas is prevented from leaking out of the drying chamber, and on the other hand, the external air is prevented from entering the drying chamber, thereby reducing the purity of the carbon dioxide gas. The high-temperature carbon dioxide gas can improve the drying efficiency of the gypsum board and prevent the gypsum board from cracking. However, waste gas is generated during the drying process of the gypsum board production. Most existing devices directly discharge the waste gas after filtering, but the waste gas also contains harmful gases such as VOCs, nitrogen oxides, and sulfur dioxide, which have many hazards to the environment and human health. Therefore, it is very necessary to purify the waste gas. Summary of the invention

[0004] The purpose of the present invention is to solve the problem in the prior art that waste gas is generated during the production and drying process of gypsum boards, and harmful gases such as VOCs, nitrogen oxides, sulfur dioxide, etc. in the waste gas are not purified, which has many hazards to the environment and human health. A boiler flue gas heat recovery device is provided, which can fully adsorb and purify harmful gases such as VOCs, nitrogen oxides, sulfur dioxide, etc. contained in the waste gas to avoid harm to the environment and human health.

[0005] In order to achieve the above-mentioned objectives, the present invention provides a drying device for gypsum board production, including a drying box, an exhaust hood is installed on the drying box, an exhaust pump is arranged on the exhaust hood, one end of the exhaust pump is connected to an exhaust pipe, and also includes a purification box, a filter, a first purification frame, a second purification frame and a third purification frame, the air inlet end of the purification box is connected to the exhaust pipe, the purification box is provided with an exhaust pump, the filter is arranged inside the purification box, the first purification frame is arranged above the filter, ordinary activated carbon is arranged inside the first purification frame, the second purification frame is arranged above the first purification frame, acidic activated carbon is arranged inside the second purification frame, the third purification frame is arranged above the second purification frame, and alkaline activated carbon is arranged inside the third purification frame.

[0006] As a further description of the above technical solution: slide plates are arranged on both sides of the first purification frame, the second purification frame and the third purification frame, and a slide groove adapted to the slide plate is provided inside the purification box.

[0007] As a further description of the above technical solution: a sundry box is arranged below the filter screen, the sundry box is slidably connected to the inside of the drying box, and a cleaning component is arranged above the filter screen.

[0008] As a further description of the above technical solution: a heat exchange component is connected between the purification box and the exhaust pipe, and the air outlet end of the heat exchange component is connected to the air inlet component.

[0009] As a further description of the above technical solution: the cleaning component includes a forward and reverse motor, which is connected to one end of a lead screw, and the other end of the lead screw is connected to a purification box through a bearing seat. A drive block is provided on the lead screw, and a brush plate is connected under the drive block. The brush plate is in contact with the upper surface of the filter net, and a limiting slide rod is provided on one side of the lead screw.

[0010] As a further description of the above technical solution: the heat exchange component includes a heat exchange tank, a spiral heat exchange tube is arranged inside the heat exchange tank, the air inlet end of the spiral heat exchange tube is connected to the exhaust pipe, the air outlet end of the spiral heat exchange tube is connected to the purification box, an air inlet pipe is arranged at the top of the heat exchange tank, and an air outlet pipe connected to the air inlet component is arranged on one side of the heat exchange tank.

[0011] As a further description of the above technical solution: a top cover is provided on the heat exchange tank, and a guide plate detachably connected to the top cover is provided on one side of the spiral heat exchange tube, the guide plate divides the heat exchange tank into a heat exchange chamber and an air outlet chamber, an air guide port is formed at the lower end of the guide plate, the air inlet pipe is connected to the heat exchange chamber, and the air outlet pipe is connected to the air outlet chamber.

[0012] As a further description of the above technical solution: the air inlet assembly includes a hot air box, which is provided with an air inlet and an exhaust pipe, the air inlet is connected to the exhaust pipe, the exhaust pipe is connected to the air inlet end of the air suction pump, the air outlet end of the air suction pump is connected to the air outlet pipe, and a plurality of heating wires and a plurality of air guide plates are arranged inside the hot air box, and the plurality of air guide plates are connected to the inner walls on both sides of the hot air box in a staggered manner.

[0013] As a further description of the above technical solution: a conveying assembly is arranged below the drying box, and sealing doors are arranged on both sides of the drying box.

[0014] A gypsum board production and drying method, the method steps specifically include: S1, sending the gypsum board to be dried into a drying box through a conveying component, and closing the sealing door for drying; S2: sending hot air into the drying box through an air inlet component to dry the gypsum board; S3: passing the exhaust gas generated during the drying process into an exhaust pipe and introducing it into a heat exchange component for cooling treatment, and the air after heat exchange enters the air inlet component for utilization; S4: introducing the cooled exhaust gas into a purification box for purification treatment.

[0015] The above technical solution has the following advantages or beneficial effects:

[0016] The present invention works by means of a vacuum pump and an exhaust pump, and the waste gas generated in the drying box can be passed into the interior of the purification box through an exhaust pipe. The entering waste gas passes through a filter screen, a first purification frame, a second purification frame and a third purification frame in sequence. The impurities in the waste gas can be filtered out by the filter screen, and harmful gases such as VOCs, nitrogen oxides, sulfur dioxide, etc. contained in the waste gas can be fully adsorbed and purified through the ordinary activated carbon layer, the second purification frame and the third purification frame, so as to avoid harm to the environment and human health. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic structural diagram of a drying device according to an embodiment of the present invention;

[0018] Figure 2 for Figure 1 Schematic diagram of the structure of the purification box;

[0019] Figure 3 for Figure 2 A schematic diagram of the structure of the cleaning component;

[0020] Figure 4 for Figure 1 A schematic diagram of the structure of the heat exchange component;

[0021] Figure 5 for Figure 1 Schematic diagram of the structure of the middle air inlet assembly;

[0022] Figure 6 for Figure 2 Schematic diagram of the structure of the first purification frame.

[0023] Legend:

[0024] 1. Drying box; 2. Vacuum hood; 3. Vacuum pump; 4. Exhaust pipe; 5. Purification box; 6. Filter; 7. First purification frame; 8. Second purification frame; 9. Third purification frame; 10. Slide plate; 11. Slide; 12. Miscellaneous box; 13. Cleaning component; 14. Heat exchange component; 15. Air inlet component; 16. Conveying component; 17. Sealing door; 18. Exhaust pump; 1301. Forward and reverse motor; 1302. Lead screw; 1303. Drive block; 1304. Hair Brush plate; 1305, limit slide bar; 1401, heat exchange tank; 1402, spiral heat exchange tube; 1403, air inlet pipe; 1404, air outlet pipe; 1405, top cover; 1406, guide plate; 1407, heat exchange chamber; 1408, air outlet chamber; 1409, air guide port; 1501, hot air box; 1502, air inlet; 1503, exhaust pipe; 1504, suction pump; 1505, air outlet pipe; 1506, heating wire; 1507, air guide plate. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] In the description of the present invention, it should be noted that the terms "vertical", "up", "down", "horizontal", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0027] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "disposed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] See also Figure 1-6The present invention provides a technical solution: the drying device for gypsum board production of the present invention comprises a drying box 1, an exhaust hood 2 is installed on the drying box 1, an exhaust pump 3 is arranged on the exhaust hood 2, one end of the exhaust pump 3 is connected to an exhaust pipe 4, and also comprises: a purification box 5, the air inlet end of the purification box 5 is connected to the exhaust pipe 4, and the purification box 5 is provided with an exhaust pump 18; a filter screen 6, the filter screen 6 is arranged inside the purification box 5; a first purification frame 7, the first purification frame 7 is arranged above the filter screen 6, and ordinary activated carbon is arranged inside the first purification frame 7; a second purification frame 8, the second purification frame 8 is arranged above the first purification frame 7, and acid activated carbon is arranged inside the second purification frame 8; a third purification frame 9, the third purification frame 9 is arranged above the second purification frame 8, and alkaline activated carbon is arranged inside the third purification frame 9.

[0029] In the technical solution provided by the present invention, the exhaust gas generated in the drying box 1 can be passed into the purification box 5 through the exhaust pipe 4 by the operation of the vacuum pump 3 and the exhaust pump 18. The incoming exhaust gas passes through the filter 6, the first purification frame 7, the second purification frame 8 and the third purification frame 9 in sequence. The impurities in the filtered exhaust gas can be filtered through the filter 6. The ordinary activated carbon layer, the acidic activated carbon layer and the alkaline activated carbon layer in the first purification frame 7, the second purification frame 8 and the third purification frame 9 can fully adsorb and purify harmful gases such as VOCs, nitrogen oxides and sulfur dioxide contained in the exhaust gas to avoid harm to the environment and human health.

[0030] Among them, the ordinary activated carbon, acid activated carbon and alkaline activated carbon laid in the first purification frame 7, the second purification frame 8 and the third purification frame 9 respectively have different effects. Ordinary activated carbon is a highly efficient adsorbent with a pore structure, and the adsorption capacity of activated carbon mainly depends on its large number of pores; acid activated carbon has strong acidity and can adsorb oxidizing gases and vapors, such as SO2, NOx, H2S, etc.; alkaline activated carbon is an adsorbent obtained by treating the surface of activated carbon under alkaline conditions during the production process. Alkaline activated carbon has strong alkalinity and can adsorb acidic gases and vapors, such as HCL, HF, etc.

[0031] Specifically, slide plates 10 are provided on both sides of the first purification frame 7, the second purification frame 8 and the third purification frame 9, and a slide groove 11 adapted to the slide plate 10 is opened inside the purification box 5; the first purification frame 7, the second purification frame 8 and the third purification frame 9 are slidably connected with the slide plate 10 inside the purification box 5 through the slide plate 10, so that the first purification frame 7, the second purification frame 8 and the third purification frame 9 can be conveniently taken out, and the activated carbon layer inside the first purification frame 7, the second purification frame 8 and the third purification frame 9 can be cleaned and replaced.

[0032] like Figure 1 and Figure 2As shown, a receiving box 12 is provided below the filter 6, and the receiving box 12 is slidably connected to the inside of the drying box 1, and a cleaning component 13 is provided above the filter 6; the particulate debris filtered by the filter 6 can be collected by the receiving box 12, and the receiving box 12 is slidably connected to the inside of the drying box 1, so that the receiving box 12 can be taken out and cleaned conveniently, and the blocked mesh on the filter 6 can be cleaned by the cleaning component 13.

[0033] like Figure 1 and Figure 3 As shown, the cleaning component 13 includes a forward and reverse motor 1301, which is connected to one end of a lead screw 1302, and the other end of the lead screw 1302 is connected to the purification box 5 through a bearing seat. A driving block 1303 is arranged on the lead screw 1302, and a brush plate 1304 is connected below the driving block 1303, and the brush plate 1304 contacts the upper surface of the filter screen 6. A limit slide bar 1305 is arranged on one side of the lead screw 1302; the forward and reverse motor 1301 works to drive the driving block 1303 to move, and the driving block 1303 drives the brush plate 1304 to move, and the mesh holes on the filter screen 6 can be cleaned by the movement of the brush plate 1304, and the blocked mesh holes on the filter screen 6 can be cleared, thereby enhancing the filtering effect of the filter screen 6.

[0034] like Figure 1 and Figure 4 As shown, a heat exchange component 14 is connected between the purification box 5 and the exhaust pipe 4 , and an air outlet end of the heat exchange component 14 is connected to an air inlet component 15 . The heat exchange component 14 includes a heat exchange tank 1401, and a spiral heat exchange tube 1402 is arranged inside the heat exchange tank 1401. The air inlet end of the spiral heat exchange tube 1402 is connected to the exhaust pipe 4, and the air outlet end of the spiral heat exchange tube 1402 is connected to the purification box 5. An air inlet pipe 1403 is arranged on the top of the heat exchange tank 1401, and an air outlet pipe 1404 connected to the air inlet component 15 is arranged on one side of the heat exchange tank 1401; cold air can be introduced into the heat exchange tank 1401 through the air inlet pipe 1403, and heat is exchanged with the high-temperature exhaust gas in the spiral heat exchange tube 1402. The high-temperature exhaust gas heats the air in the heat exchange tank 1401, and the heated air is discharged into the air inlet component 15 through the air outlet pipe 1404 for reheating. The spiral heat exchange tube 1402 is used to increase the flow time of the high-temperature exhaust gas in the heat exchange tank 1401, thereby improving the heat exchange efficiency of the high-temperature flue gas, and the cooled exhaust gas can be adsorbed and purified through the purification box 5.

[0035] Among them, the cooled exhaust gas is adsorbed and purified by the first purification frame 7, the second purification frame 8 and the third purification frame 9 in the purification box 5, which can prevent the high-temperature exhaust gas from affecting the service life of the activated carbon inside the first purification frame 7, the second purification frame 8 and the third purification frame 9.

[0036] like Figure 1 and Figure 4As shown, a top cover 1405 is provided on the heat exchange tank 1401, and a guide plate 1406 detachably connected to the top cover 1405 is provided on one side of the spiral heat exchange tube 1402. The guide plate 1406 divides the heat exchange tank 1401 into a heat exchange chamber 1407 and an air outlet chamber 1408. An air guide port 1409 is formed at the lower end of the guide plate 1406. The air inlet pipe 1403 is connected to the heat exchange chamber 1407, and the air outlet pipe 1404 is connected to the air outlet chamber 1408. The heat exchange tank 1401 can be divided into a heat exchange chamber 1407 and an air outlet chamber 1408 through the guide plate 1406. The cold air entering from the air inlet pipe 1403 can be heated by heat exchange through the spiral heat exchange tube 1402 inside the heat exchange chamber 1407. The heated hot air enters the air outlet chamber 1408 through the air guide port 1409, and then enters the air inlet component 15 through the air outlet pipe 1404 for heating. The cooled exhaust gas enters the purification box 5 for purification.

[0037] like Figure 1 and Figure 5 As shown, the air inlet assembly 15 includes a hot air box 1501, which is provided with an air inlet 1502 and an exhaust pipe 1503, the air inlet 1502 is connected to the exhaust pipe 1404, the exhaust pipe 1503 is connected to the air inlet end of the suction pump 1504, the air outlet end of the suction pump 1504 is connected to the air outlet pipe 1505, and a plurality of heating wires 1506 and a plurality of air guide plates 1507 are arranged inside the hot air box 1501, and the plurality of air guide plates 1507 are connected to the inner walls on both sides of the hot air box 1501 in an interlaced manner; when the suction pump 1504 works, the air passing through the heat exchange tank 1401 is sucked into the hot air box 1501 through the air inlet 1502 for heating, and then discharged through the air outlet pipe 1505, so as to dry the transported gypsum board.

[0038] Specifically, by using multiple air guide plates 1507 that are staggered and connected to the inner walls of both sides of the hot air box 1501, the air entering from the air inlet 1502 can be fully heated for a long time to form uniform hot air, thereby enhancing the uniform drying ability of the device.

[0039] Among them, a fan can be arranged on the side of the drying box 1. Through the operation of the fan, a large amount of water vapor generated inside the drying box can be discharged to enhance the drying effect.

[0040] like Figure 1 and Figure 2 As shown, a conveying assembly 16 is provided below the drying box 1, and sealing doors 17 are provided on both sides of the drying box 1; the gypsum board can be conveyed by the conveying assembly 16, and the drying box 1 can be sealed by the sealing door 17, thereby enhancing the sealing and drying effect.

[0041] The method for drying gypsum board production includes the following steps: S1, sending the gypsum board to be dried into the drying box 1 through the conveying component 16, and closing the sealing door 17 for drying; S2: sending hot air into the drying box 1 through the air inlet component 15 to dry the gypsum board; S3: passing the exhaust gas generated during the drying process into the exhaust pipe 4 and introducing it into the heat exchange component 14 for cooling treatment, and the air after heat exchange enters the air inlet component 15 for utilization; S4: introducing the cooled exhaust gas into the purification box 5 for purification treatment.

[0042] In this method, during the drying process, the air is heated by the heat exchange component 14 and then introduced into the air inlet component 15 for reuse, which realizes the recycling of heat energy and greatly improves the efficiency of energy use. By recycling and utilizing the heat in the exhaust gas, the demand for external heat sources is reduced, thereby reducing energy consumption and achieving energy saving effects. After the exhaust gas in the drying process is cooled by the heat exchange component 14, it is introduced into the purification box 5 for further treatment, which reduces the impact of high-temperature exhaust gas on the environment. After the exhaust gas is treated by the purification box 5, harmful substances can be removed from it, and harmful gases are avoided from being discharged into the atmosphere, thereby reducing pollution to the environment, meeting environmental protection requirements, and evenly delivering hot air into the drying box through the air inlet component 15 to ensure that the hot air can effectively cover the surface of the gypsum board, thereby achieving uniform drying. This helps to avoid local overheating or over-humidification of the gypsum board during the drying process. The method delivers the gypsum board into the drying box 1 through the conveying component 16, and continuously provides hot air to the inside of the drying box through the air inlet component 15, so that the drying process can be continued, maximizing the working efficiency of the production line, and effectively improving production efficiency, saving energy and reducing emissions, reducing environmental pollution, and ensuring product quality and long-term stable operation of equipment by realizing hot air recovery, exhaust gas cooling and purification treatment. It conforms to the development trend of high efficiency, energy saving and environmental protection in modern industry, and plays an important role in improving the economic benefits and social responsibility of enterprises.

[0043] Working principle: The staff can control the vacuum pump 3 and the exhaust pump 18 to pass the exhaust gas generated in the drying box 1 into the purification box 5 through the exhaust pipe 4. The incoming exhaust gas passes through the filter 6, the first purification frame 7, the second purification frame 8 and the third purification frame 9 in turn. The filter 6 can filter out the impurities in the exhaust gas, and the ordinary activated carbon layer, acidic activated carbon layer and alkaline activated carbon layer in the first purification frame 7, the second purification frame 8 and the third purification frame 9 can fully adsorb and purify the VOCs, nitrogen oxides, sulfur dioxide and other harmful gases contained in the exhaust gas to avoid harm to the environment and human health.

[0044] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0045] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A drying device for producing gypsum boards, comprising a drying box (1), wherein an exhaust hood (2) is mounted on the drying box (1), an exhaust pump (3) is arranged on the exhaust hood (2), and an exhaust pipe (4) is connected to one end of the exhaust pump (3), wherein: Also includes: A purification box (5), the air inlet end of the purification box (5) is connected to the exhaust pipe (4), and the purification box (5) is provided with an exhaust pump (18); A filter screen (6), wherein the filter screen (6) is arranged inside the purification box (5); A first purification frame (7), the first purification frame (7) being arranged above the filter screen (6), and ordinary activated carbon being arranged inside the first purification frame (7); A second purification frame (8), the second purification frame (8) being arranged above the first purification frame (7), and acid activated carbon being arranged inside the second purification frame (8); A third purification frame (9), wherein the third purification frame (9) is arranged above the second purification frame (8), and alkaline activated carbon is arranged inside the third purification frame (9).

2. The drying device for gypsum board production according to claim 1, characterized in that: Slide plates (10) are provided on both sides of the first purification frame (7), the second purification frame (8) and the third purification frame (9), and a slide groove (11) adapted to the slide plate (10) is provided inside the purification box (5).

3. The drying device for gypsum board production according to claim 1, characterized in that: A miscellaneous box (12) is arranged below the filter screen (6), and the miscellaneous box (12) is slidably connected to the inside of the drying box (1). A cleaning component (13) is arranged above the filter screen (6).

4. The drying device for gypsum board production according to claim 1, characterized in that: A heat exchange component (14) is connected between the purification box (5) and the exhaust pipe (4), and the air outlet end of the heat exchange component (14) is connected to the air inlet component (15).

5. The drying device for gypsum board production according to claim 3, characterized in that: The cleaning assembly (13) comprises a forward and reverse motor (1301), wherein the forward and reverse motor (1301) is connected to one end of a lead screw (1302), and the other end of the lead screw (1302) is connected to a purification box (5) via a bearing seat. A driving block (1303) is provided on the lead screw (1302), and a brush plate (1304) is connected below the driving block (1303). The brush plate (1304) is in contact with the upper surface of the filter screen (6), and a limiting sliding rod (1305) is provided on one side of the lead screw (1302).

6. The drying device for gypsum board production according to claim 4, characterized in that: The heat exchange component (14) comprises a heat exchange tank (1401), a spiral heat exchange tube (1402) is arranged inside the heat exchange tank (1401), the air inlet end of the spiral heat exchange tube (1402) is connected to the exhaust pipe (4), and the air outlet end of the spiral heat exchange tube (1402) is connected to the purification box (5), an air inlet pipe (1403) is arranged at the top end of the heat exchange tank (1401), and an air outlet pipe (1404) connected to the air inlet component (15) is arranged on one side of the heat exchange tank (1401).

7. The drying device for gypsum board production according to claim 6, characterized in that: The heat exchange tank (1401) is provided with a top cover (1405), and one side of the spiral heat exchange tube (1402) is provided with a guide plate (1406) detachably connected to the top cover (1405), the guide plate (1406) divides the heat exchange tank (1401) into a heat exchange chamber (1407) and an air outlet chamber (1408), and an air guide port (1409) is formed at the lower end of the guide plate (1406), the air inlet pipe (1403) is connected to the heat exchange chamber (1407), and the air outlet pipe (1404) is connected to the air outlet chamber (1408).

8. The drying device for gypsum board production according to claim 4, characterized in that: The air inlet assembly (15) comprises a hot air box (1501), and the hot air box (1501) is provided with an air inlet (1502) and an exhaust pipe (1503), the air inlet (1502) is connected to the exhaust pipe (1404), the exhaust pipe (1503) is connected to the air inlet end of an air suction pump (1504), and the air outlet end of the air suction pump (1504) is connected to the air outlet pipe (1505), and a plurality of heating wires (1506) and a plurality of air guide plates (1507) are arranged inside the hot air box (1501), and the plurality of air guide plates (1507) are connected to the inner walls on both sides of the hot air box (1501) in an interlaced manner.

9. The drying device for gypsum board production according to claim 1, characterized in that: A conveying assembly (16) is provided below the drying box (1), and sealing doors (17) are provided on both sides of the drying box (1).

10. A method for drying gypsum board production, characterized in that: The method steps specifically include: S1, the gypsum board to be dried is sent into the drying box (1) through the conveying assembly (16), and the sealing door (17) is closed for drying; S2: hot air is introduced into the drying box (1) through the air inlet assembly (15) to dry the gypsum board; S3: the waste gas generated during the drying process is introduced into the exhaust pipe (4) and directed into the heat exchange component (14) for cooling, and the air after heat exchange enters the air inlet component (15) for utilization; S4: The cooled exhaust gas is introduced into a purification box (5) for purification.

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