Gypsum powder drying machine

Abstract

The invention provides a gypsum powder drying machine, and relates to the technical field of gypsum powder drying. A connecting bin is fixedly connected to the supporting frame, a heating mechanism is arranged on the connecting bin, a heating cylinder is fixedly connected to the connecting bin, leakage holes are formed in the side wall of the heating cylinder, a discharging bin is fixedly connected to the end, away from the connecting bin, of the supporting frame, and a rotating auger is rotationally connected to the discharging bin. And the rotating auger extends into the heating cylinder, the discharging bin is rotationally connected with a crushing auger, and the crushing auger is used for crushing blocky gypsum powder carried by the rotating auger. According to the gypsum powder pre-drying device, gypsum powder with high water content can be pre-dried, pre-dried caked gypsum and non-caked gypsum are separated, the caked gypsum is crushed after separation, and the drying efficiency is improved.

Description

Technical Field

[0001] This application relates to the technical field of gypsum powder drying, and specifically relates to a gypsum powder dryer. Background Art

[0002] Gypsum powder is a material used in inorganic construction. The main component of gypsum powder is calcium sulfate. Due to different processing technologies and uses of gypsum powder, gypsum powder is divided into multiple types, such as building gypsum, model gypsum, and medical gypsum.

[0003] Since gypsum powder absorbs moisture during production and processing, and gypsum with excessive moisture content is prone to caking, deterioration, or mildew during storage, it is necessary to dry the produced gypsum powder. There are free water and crystal water in the undried gypsum powder, which affect the setting of gypsum powder. By placing the gypsum powder in a drum dryer to dry the gypsum powder, the crystal water in the gypsum powder can be removed. At the same time, the free water existing in the gypsum powder moves under the drive of high-temperature gas, reducing the water content in the gypsum powder, changing the crystal structure of the gypsum powder. When remixed with water, a hydration reaction will occur, resulting in an increase in the setting strength of the gypsum powder.

[0004] Referring to the Chinese patent document with the publication number CN212806351U and the name of "Building Gypsum Powder Dryer", this device cooperates with a hydraulic cylinder, a connecting block, and a mounting seat to tilt the cylinder body and open the valve of the discharge port, facilitating the pouring out of the gypsum powder in the cylinder body and cleaning the inner side wall of the cylinder body.

[0005] For the above technical solution, since gypsum powder absorbs moisture during production, when the moisture content in the gypsum powder is too high, it will cause the gypsum powder to cake. Due to the influence of the structure during the drying process of the caked gypsum powder, within the same drying time for the caked gypsum powder and the uncaked gypsum powder, the uncaked gypsum powder has been fully dried, but there is still crystal water inside the caked gypsum powder, and the dried gypsum powder does not meet the required standards. Therefore, it is necessary to dry the gypsum powder for a long time, which affects the drying efficiency. Summary of the Invention

[0006] In view of this, this application provides a gypsum powder dryer, aiming to solve the problem that it is difficult to dry caked gypsum powder with a large water content.

[0007] A gypsum powder dryer provided by the present application adopts the following technical solution, including a support frame and a heating bin rotatably connected to the support frame; a connection bin is fixedly connected to the support frame, a heating mechanism is arranged on the connection bin, a heating cylinder is fixedly connected to the connection bin, leakage holes are formed in the side wall of the heating cylinder, one end of the support frame far away from the connection bin is fixedly connected with a discharge bin, a rotating auger is rotatably connected to the discharge bin, the rotating auger extends into the heating cylinder, and a crushing auger is rotatably connected to the discharge bin, and the crushing auger is used for crushing the lumpy gypsum powder carried by the rotating auger.

[0008] Pour the gypsum powder into the heating bin through the connection bin, and enable the heating mechanism to heat the inside of the heating bin, so that the gypsum powder inside the heating bin comes into contact with the hot air, and the moisture inside the gypsum powder is discharged under the drive of the hot air. Since the water content in some gypsum powders is relatively high, the gypsum powder with a high water content is prone to caking problems. At the same temperature and time, the drying time for the caked gypsum powder is longer. Therefore, use the rotating auger and the crushing auger to rotate to break the caked gypsum powder to increase the drying efficiency of the gypsum powder.

[0009] When drying the gypsum powder, since it is difficult for the inside of the lumpy gypsum to come into contact with the hot air, the lumpy gypsum is unevenly heated during drying. By crushing the gypsum powder, the gypsum powder can be evenly heated in the dryer, reducing the phenomenon of uneven drying and improving the product quality.

[0010] Optionally, the heating mechanism includes a rotating blower fixedly connected to the connection bin, a heating wire is fixedly connected to the rotating blower near the inside of the heating bin, and the heating wire is used for heating the gas blown by the rotating blower into the heating bin. A ventilation opening is formed in the side wall of the connection bin, and the ventilation opening is used to communicate the position where the heating wire is located and the inside of the heating bin.

[0011] Since the heat transfer efficiency of the hot air is high, it can quickly transfer the heat energy to the gypsum powder, accelerate the evaporation of moisture, thereby improving the drying efficiency. And the hot air can remove the moisture carried in the gypsum powder and uniformly dry the gypsum powder. In the case of hot air drying, the damage to the structure of the gypsum powder caused by high temperature can be reduced, and the physical properties of the gypsum powder can be maintained.

[0012] Optionally, a feed inlet is formed in the connection bin, a feed flap is rotatably connected to the connection bin, and the feed flap is arranged at the feed inlet. A connection push rod is fixedly connected to the position of the feed flap near the inside of the heating bin. One end of the connection push rod away from the feed flap is rotatably connected to a wind blocking flap, the wind blocking flap is rotatably connected to the connection bin, and the wind blocking flap is rotatably connected to the side wall where the ventilation opening is located.

[0013] By pre-drying the gypsum powder, the moisture content in the gypsum powder can be reduced, the sticking phenomenon between the gypsum powder during the drying process can be reduced, and the formation of lumps of gypsum powder inside the dryer can be reduced, thereby improving the drying efficiency and reducing the problem of uneven drying caused by sticking.

[0014] Optionally, a leakage plate is fixedly connected to the connecting bin, and the leakage plate is arranged above the wind shield flap. The leakage plate is used to block block gypsum, and a leakage port is opened on the leakage plate, and the leakage port is used to allow powdered gypsum to fall.

[0015] By pre-drying the gypsum powder, the water content of the gypsum powder can be reduced, so that it can be used more effectively for water evaporation in the subsequent drying process, thereby improving the drying efficiency.

[0016] Optionally, a fixed gear ring is fixedly connected to the inner wall of the heating bin, a driven gear is fixedly connected to the outer wall of the crushing auger, and the fixed gear ring and the driven gear are meshed, and a rotating gear is fixedly connected to the outer wall of the rotating auger, and the rotating gear and the driven gear are meshed.

[0017] Optionally, a rotating motor is fixedly connected to the support frame, a connecting gear is rotatably connected to the support frame, the connecting gear and the rotating motor are connected via a belt drive, a rotating chain is fixedly connected to the side wall of the heating chamber, and the rotating chain can mesh with the connecting gear.

[0018] Optionally, a discharge port is provided at the discharge bin, and an air outlet is provided on a side wall of the discharge bin, and the air outlet is used to discharge hot air with a high water content in the heating bin.

[0019] By discharging the gas with high water content, the humidity inside the dryer can be reduced, thereby increasing the rate at which water evaporates from the gypsum powder into the gas and improving the drying efficiency. Reducing the humidity inside the dryer can prevent the quality of the gypsum powder from deteriorating due to excessive moisture, thereby improving the quality of the final product.

[0020] Optionally, a receiving roller is rotatably connected to the support frame, and the receiving roller abuts against two ends of the heating bin, and the receiving roller is used to reduce the shaking of the heating bin.

[0021] Optionally, a guide block is fixedly connected to the side wall of the heating chamber, and the guide block is arranged at the receiving roller. A guide groove that can assist in supporting the guide block is opened on the side wall of the receiving roller.

[0022] Optionally, a plurality of guide plates are distributed in a circumferential array inside the heating chamber, and the guide plates are used to drive the gypsum to move when the heating chamber rotates.

[0023] In summary, compared with the prior art, the present application includes at least one of the following beneficial technical effects: 1. When drying gypsum powder, since it is difficult for the inside of massive gypsum to come into contact with hot air, the massive gypsum is unevenly heated during drying. By crushing the gypsum powder, the gypsum powder can be evenly heated in the dryer, reducing the phenomenon of uneven drying and improving the product quality.

[0024] 2. Since the hot air has a high heat transfer efficiency, it can quickly transfer heat energy to the gypsum powder, accelerating the evaporation of moisture, thereby improving the drying efficiency. And the hot air can remove the moisture carried in the gypsum powder and evenly dry the gypsum powder. In the case of hot air drying, it can reduce the damage to the structure of the gypsum powder due to high temperature and maintain the physical properties of the gypsum powder.

[0025] 3. By pre-drying the gypsum powder, the moisture content of the gypsum powder can be reduced, reducing the adhesion phenomenon between the gypsum powders during the drying process, and reducing the formation of agglomerates of the gypsum powder inside the dryer, improving the drying efficiency and reducing the problem of uneven drying caused by adhesion. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a schematic structural diagram of a gypsum powder dryer according to this embodiment; Figure 2 is a schematic structural diagram of the heating mechanism according to this embodiment; Figure 3 is a schematic structural diagram of the feeding flap according to this embodiment; Figure 4 is a schematic structural diagram of the material leakage plate according to this embodiment; Figure 5 is a schematic structural diagram of the rotating auger according to this embodiment; Figure 6 is a schematic structural diagram of the rotating chain according to this embodiment; Figure 7 is a schematic structural diagram of the rotating gear according to this embodiment; Figure 8 is a schematic structural diagram of the air outlet according to this embodiment.

[0027] Description of reference numerals: 1, support frame; 2, heating bin; 21, connecting bin; 22, heating cylinder; 23, material leakage hole; 24, discharge bin; 25, rotating auger; 26, crushing auger; 3, heating mechanism; 31, rotating fan; 32, heating wire; 33, ventilation opening; 4, feed inlet; 41, feed flap; 42, connecting push rod; 43, wind blocking flap; 44, material leakage plate; 45, material leakage opening; 5, fixed gear ring; 51, driven gear; 52, rotating gear; 6, rotating motor; 61, connecting gear; 62, rotating chain; 7, discharge outlet; 71, air outlet; 8, receiving roller; 81, guiding block; 82, guiding groove; 9, guiding plate. Detailed implementation manners

[0028] To make the objectives, technical solutions and advantages of the embodiments of the present application clearer, the following will combine the Figures 1 - 8 of the embodiments of the present application to clearly and completely describe the technical solutions of the embodiments of the present application. Based on the described embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art belong to the scope protected by the present application.

[0029] As Figure 1 shown, this embodiment provides a gypsum powder dryer, including a support frame 1, a heating mechanism 3, a crushing mechanism, a transmission mechanism, a preheating mechanism and a rotating mechanism. A heating bin 2 is arranged on the support frame 1. The heating mechanism 3 is used to heat the heating bin 2. The crushing mechanism is used to crush the massive gypsum. The transmission mechanism is used to drive the crushing mechanism to rotate. The preheating mechanism is used to preheat the massive and powdery gypsum. The rotating mechanism is used to drive the heating bin 2 to rotate.

[0030] As Figure 1 、 Figure 2 、and Figure 5 shown, the heating mechanism 3 includes a heating bin 2, a connecting bin 21, a heating cylinder 22, a rotating fan 31, a heating wire 32 and a ventilation opening 33. The heating bin 2 is rotatably connected to the support frame 1. The connecting bin 21 is fixedly connected to the support frame 1, and the connecting bin 21 and the heating bin 2 are rotatably connected. The heating cylinder 22 is fixedly connected to the connecting bin 21. The rotating fan 31 is fixedly connected to the connecting bin 21 and is arranged at one end of the connecting bin 21 away from the heating bin 2. The ventilation opening 33 is opened on the connecting bin 21, and the heating wire 32 is fixedly connected to the connecting bin 21 and is arranged at the ventilation opening 33. A material leakage hole 23 is opened on the side wall of the heating cylinder 22.

[0031] When the gypsum needs to be heated and dried, the rotating fan 31 is started, so that the rotating fan 31 drives the external air to move toward the inside of the heating bin 2, and the heating wire 32 heats the air driven by the rotating fan 31, so that the high-temperature gas enters the heating tube 22 from the vent 33, heats the inside of the heating tube 22, and is discharged into the heating bin 2 from the leakage hole 23, so as to heat the powdered material in the heating bin 2.

[0032] like Figure 5 and Figure 7 As shown, the crushing mechanism includes a discharge bin 24, a rotating auger 25 and a crushing auger 26. The discharge bin 24 is fixedly connected to the support frame 1, the rotating auger 25 is rotatably connected to the side wall of the discharge bin 24, the rotating auger 25 is used to drive the gypsum to move toward one end close to the discharge bin 24, the crushing auger 26 is rotatably connected to the discharge bin 24, and the crushing auger 26 is used to crush the block gypsum driven to the discharge bin 24 by the rotating auger 25.

[0033] When the gypsum is being dried, the rotating auger 25 is rotated, so that the rotating auger 25 drives the block gypsum to move, and the block material moves toward the crushing auger 26. When the block gypsum moves to the crushing auger 26, the crushing auger 26 crushes the block gypsum, breaks the block gypsum into powder, and discharges it from the leakage hole 23.

[0034] like Figure 7 As shown, the transmission mechanism includes a fixed gear ring 5, a driven gear 51 and a rotating gear 52. The fixed gear ring 5 is fixedly connected to the inner wall of the heating chamber 2, the driven gear 51 is fixedly connected to the outer wall of the crushing auger 26, and the rotating gear 52 is fixedly connected to the outer wall of the rotating auger 25. The fixed gear ring 5 and the driven gear 51 are meshed, and the rotating gear 52 and the driven gear 51 are meshed.

[0035] When the heating bin 2 rotates, the heating bin 2 rotates and drives the fixed gear ring 5 to rotate. The fixed gear ring 5 rotates and drives the driven gear 51 to rotate. The driven gear 51 rotates and drives the crushing auger 26 to rotate, so that the crushing auger 26 crushes the block gypsum. At this time, the rotation of the driven gear 51 drives the rotating gear 52 to rotate. Since the rotation direction of the rotating gear 52 is opposite to that of the fixed gear ring 5, the rotating gear 52 can drive the block gypsum to move toward the crushing auger 26. The rotation directions of the rotating gear 52 and the driven gear 51 are opposite. The crushing auger 26 crushes the block gypsum located between the crushing auger 26 and the rotating auger 25.

[0036] like Figure 2 , Figure 3 , Figure 4 and Figure 6As shown in the figure, the preheating mechanism includes a feed inlet 4, a feed flap 41, a connecting push rod 42, a windshield flap 43, a material leakage plate 44 and a material leakage port 45. The feed inlet 4 is opened on the connecting bin 21. The feed flap 41 is rotatably connected to the connecting bin 21 and is arranged at the feed inlet 4. The connecting push rod 42 is fixedly connected to the feed flap 41 and is arranged on the side close to the heating bin 2. The windshield flap 43 is rotatably connected in the connecting bin 21. The connecting push rod 42 and the windshield flap 43 are rotatably connected and the windshields flap 43 is rotatably connected to the side wall where the ventilation port 33 is located. The material leakage plate 44 is fixedly connected in the connecting bin 21 and is arranged at the upper position of the windshields flap 43. The material leakage port 45 is opened on the material leakage plate 44.

[0037] When the gypsum powder with a relatively high water content moves through the feed inlet 4 into the heating cylinder 22, the gravity of the gypsum pushes the feed flap 41 to rotate, causing the feed flap 41 to drive the connecting push rod 42 to move, and the connecting push rod 42 to push the windshields flap 43 to rotate, so that the windshields flap 43 blocks part of the area below the ventilation port 33. When the heating wire 32 starts to work, most of the hot air blows towards the gypsum material from above the ventilation port 33 to preheat the gypsum material. During the preheating process, part of the gypsum powder that has not caked but is sticky due to the relatively high water content is separated and falls into the heating bin 2 through the material leakage port 45. The material above the material leakage port 45 is caked gypsum, and the caked gypsum moves towards the heating cylinder 22.

[0038] As Figure 1 shown in the figure, the rotating mechanism includes a rotating motor 6, a connecting gear 61 and a rotating chain 62. The rotating motor 6 is fixedly connected to the support frame 1. The connecting gear 61 is rotatably connected to the support frame 1, and the connecting gear 61 and the rotating motor 6 are connected by a belt drive. The rotating chain 62 is fixedly connected to the side wall of the heating bin 2, and the rotating chain 62 can mesh with the connecting gear 61.

[0039] When it is necessary to drive the heating bin 2 to rotate, start the rotating motor 6. The rotating motor 6 drives the connecting gear 61 to rotate, causing the connecting gear 61 to drive the rotating chain 62 to rotate, and then driving the heating bin 2 to rotate to heat the gypsum in the heating bin 2.

[0040] As Figure 8 shown in the figure, a discharge port 7 is opened at the discharge bin 24, and an air outlet 71 is opened on the side wall of the discharge bin 24. The air outlet 71 is used to discharge the hot air with a relatively high water content in the heating bin 2.

[0041] The gypsum powder in the connection bin 21 flows through the material leakage opening 45 into the heating cylinder 22 during the rotation of the wind deflector 43, and the gypsum powder contacts the gas with a relatively high temperature during the rotation of the heating bin 2 to dry the gypsum powder. When the moisture content in the gas is relatively high, the gas is discharged through the air outlet 71. When the material is dried to a certain extent, the heating bin 2 is driven to reverse, so that the material is discharged from the discharge port 7.

[0042] As Figure 1 shown, a receiving roller 8 is rotatably connected to the support frame 1. The receiving roller 8 abuts against both ends of the heating bin 2. The receiving roller 8 is used to reduce the shaking of the heating bin 2. A guiding block 81 is fixedly connected to the side wall of the heating bin 2, and the guiding block 81 is arranged at the position of the receiving roller 8. A guiding groove 82 for assisting in supporting the guiding block 81 is formed on the side wall of the receiving roller 8.

[0043] As Figure 5 shown, a plurality of guiding plates 9 are distributed in a circumferential array inside the heating bin 2. The guiding plates 9 are used to drive the gypsum to move when the heating bin 2 rotates.

[0044] When the present application is in use, when the gypsum powder with a relatively high water content moves into the heating bin 2 through the feed inlet 4, the gravity of the gypsum pushes the feed flap 41 to rotate, so that the feed flap 41 drives the connecting push rod 42 to move, and the connecting push rod 42 pushes the wind deflector 43 to rotate, so that the wind deflector 43 blocks a part below the ventilation opening 33. When the heating wire 32 starts to work, most of the hot air blows towards the gypsum material from above the ventilation opening 33 to preheat the gypsum material. And during the preheating process, some gypsum powder that is not caked but adhered together due to a relatively high water content is separated, and falls into the heating bin 2 through the material leakage opening 45 at the separation opening. The material above the material leakage opening 45 is caked gypsum, and the caked gypsum moves towards the heating cylinder 22.

[0045] When it is necessary to heat and dry the gypsum, start the rotating fan 31, so that the rotating fan 31 drives the external air to move towards the inside of the heating bin 2. The heating wire 32 heats the air driven by the rotating fan 31, so that the gas with a relatively high temperature enters the heating cylinder 22 from the ventilation opening 33, heats the inside of the heating cylinder 22, and is discharged into the heating bin 2 from the material leakage hole 23 to heat the powdery material in the heating bin 2.

[0046] When it is necessary to drive the heating bin 2 to rotate, start the rotating motor 6. The rotating motor 6 drives the connecting gear 61 to rotate, so that the connecting gear 61 drives the rotating chain 62 to rotate, and then drives the heating bin 2 to rotate to heat the gypsum in the heating bin 2.

[0047] When the heating bin 2 rotates, the rotation of the heating bin 2 drives the fixed gear ring 5 to rotate. The rotation of the fixed gear ring 5 drives the driven gear 51 to rotate. The rotation of the driven gear 51 drives the crushing auger 26 to rotate, causing the crushing auger 26 to crush the massive gypsum. At this time, since the rotation of the driven gear 51 drives the rotating gear 52 to rotate, and since the rotation direction of the rotating gear 52 is opposite to that of the fixed gear ring 5 at this time, the rotating gear 52 can drive the massive gypsum to move towards the crushing auger 26. Moreover, the rotation directions of the rotating gear 52 and the driven gear 51 are opposite. The crushing auger 26 crushes the massive gypsum located at the middle position between the crushing auger 26 and the rotating auger 25. The massive gypsum is crushed into powder and discharged through the material leakage hole 23.

[0048] The gypsum powder in the heating cylinder 22 flows into the heating bin 2 through the material leakage hole 23 during the rotation of the heating cylinder 22, and the gypsum powder contacts the gas with a relatively high temperature during the rotation of the heating bin 2 to dry the gypsum powder. When there is more moisture in the gas, the gas is discharged through the air outlet 71. When the material is dried to a certain extent, the heating bin 2 is driven to reverse, causing the material to be discharged from the discharge port 7.

[0049] In this embodiment, since the surface area of the massive gypsum powder is relatively small, compared with the powdered gypsum powder, it requires a longer drying time. By drying the massive gypsum powder, the particles of the gypsum powder become smaller, the surface area increases, and the contact area with the hot air increases, thereby improving the drying efficiency.

[0050] The implementation principle of a gypsum powder dryer in the embodiment of the present application is as follows: When the gypsum powder with a relatively high water content moves from the feed inlet 4 into the heating bin 2, the gravity of the gypsum pushes the feed flap 41 to rotate, causing the feed flap 41 to drive the connecting push rod 42 to move, and the connecting push rod 42 to push the wind blocking flap 43 to rotate, so that the wind blocking flap 43 blocks a part below the ventilation opening 33. When the heating wire 32 starts to work, most of the hot air blows towards the gypsum material from above the ventilation opening 33 to preheat the gypsum material. And during the preheating process, some of the gypsum powder that has not caked but is sticky together due to a relatively high water content is separated, and falls into the heating bin 2 through the material leakage opening 45 of the material leakage plate 44. The material above the material leakage opening 45 is caked gypsum, and the caked gypsum moves towards the heating cylinder 22.

[0051] When the gypsum needs to be heated and dried, the rotating fan 31 is started, so that the rotating fan 31 drives the external air to move toward the inside of the heating bin 2, and the heating wire 32 heats the air driven by the rotating fan 31, so that the high-temperature gas enters the heating tube 22 from the vent 33, heats the inside of the heating tube 22, and is discharged into the heating bin 2 from the leakage hole 23, so as to heat the powdered material in the heating bin 2.

[0052] When it is necessary to drive the heating chamber 2 to rotate, the rotating motor 6 is started, and the rotating motor 6 drives the connecting gear 61 to rotate, so that the connecting gear 61 drives the rotating chain 62 to rotate, and then drives the heating chamber 2 to rotate, thereby heating the gypsum in the heating chamber 2.

[0053] When the heating bin 2 rotates, the heating bin 2 rotates and drives the fixed gear ring 5 to rotate. The fixed gear ring 5 rotates and drives the driven gear 51 to rotate. The driven gear 51 rotates and drives the crushing auger 26 to rotate, so that the crushing auger 26 crushes the block gypsum. At this time, the rotation of the driven gear 51 drives the rotating gear 52 to rotate. Since the rotation direction of the rotating gear 52 is opposite to that of the fixed gear ring 5, the rotating gear 52 can drive the block gypsum to move toward the crushing auger 26. The rotation directions of the rotating gear 52 and the driven gear 51 are opposite. The crushing auger 26 crushes the block gypsum located between the crushing auger 26 and the rotating auger 25. The block gypsum is crushed into powder and discharged from the leakage hole 23.

[0054] The gypsum powder in the heating cylinder 22 flows into the heating bin 2 through the leakage hole 23 during the rotation of the heating cylinder 2, and the gypsum powder comes into contact with the gas with a higher temperature during the rotation of the heating bin 2 to dry the gypsum powder. When the gas contains a lot of moisture, the gas is discharged through the air outlet 71. When the material is dried to a certain degree, the heating bin 2 is driven to reverse and the material is discharged from the discharge port 7.

[0055] The above is a preferred embodiment of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles described in the present application. These improvements and modifications should also be regarded as the scope of protection of the present application.

Claims

1. A gypsum powder drying machine, comprising a support frame (1) and a heating chamber (2) rotatably connected to the support frame (1), characterized in that: The support frame (1) is fixedly connected to a connection bin (21), the connection bin (21) is provided with a heating mechanism (3), the connection bin (21) is fixedly connected to a heating cylinder (22), a side wall of the heating cylinder (22) is provided with a material leakage hole (23), an end of the support frame (1) away from the connection bin (21) is fixedly connected to a discharge bin (24), a rotating auger (25) is rotatably connected to the discharge bin (24), the rotating auger (25) extends into the interior of the heating cylinder (22), and a crushing auger (26) is rotatably connected to the discharge bin (24), the crushing auger (26) is used to crush the block gypsum powder carried by the rotating auger (25).

2. The gypsum powder dryer according to claim 1, wherein: The heating mechanism (3) comprises a rotating fan (31) fixedly connected to the connection chamber (21); a heating wire (32) is fixedly connected to the rotating fan (31) at a position close to the interior of the heating chamber (2); the heating wire (32) is used to heat the gas blown by the rotating fan (31) toward the interior of the heating chamber (2); a vent (33) is provided on the side wall of the connection chamber (21); the vent (33) is used to connect the position of the heating wire (32) and the interior of the heating chamber (2).

3. The a gypsum powder dryer according to claim 2, characterized in that: A feed port (4) is provided at the connection bin (21), and a feed flap (41) is rotatably connected to the connection bin (21), and the feed flap (41) is arranged at the feed port (4), and a connection push rod (42) is fixedly connected to the feed flap (41) at a position close to the interior of the heating bin (2), and an end of the connection push rod (42) away from the feed flap (41) is rotatably connected to a windshield flap (43), and the windshield flap (43) is rotatably connected to the connection bin (21), and the windshield flap (43) is rotatably connected to the side wall where the ventilation port (33) is located.

4. The gypsum powder dryer according to claim 3, characterized in that: A material leakage plate (44) is fixedly connected to the connection bin (21), the material leakage plate (44) being arranged above the wind shield flap (43), the material leakage plate (44) being used to block block-shaped gypsum, and a material leakage opening (45) being provided on the material leakage plate (44), the material leakage opening (45) being used to allow powdered gypsum to fall.

5. The gypsum powder dryer according to claim 1, characterized in that: A fixed gear ring (5) is fixedly connected to the inner wall of the heating chamber (2), a driven gear (51) is fixedly connected to the outer wall of the crushing auger (26), and the fixed gear ring (5) and the driven gear (51) are meshed, and a rotating gear (52) is fixedly connected to the outer wall of the rotating auger (25), and the rotating gear (52) and the driven gear (51) are meshed.

6. The gypsum powder dryer according to claim 1, characterized in that: A rotating motor (6) is fixedly connected to the support frame (1). A connecting gear (61) is rotatably connected to the support frame (1). The connecting gear (61) and the rotating motor (6) are connected by a belt drive. A rotating chain (62) is fixedly connected to the side wall of the heating chamber (2), and the rotating chain (62) can be engaged with the connecting gear (61).

7. A gypsum powder dryer according to claim 1, characterized in that: An outlet (7) is provided at the discharge bin (24), and an air outlet (71) is provided on the side wall of the discharge bin (24). The air outlet (71) is used to discharge the hot air with a higher water content in the heating chamber (2).

8. A gypsum powder dryer according to claim 1, characterized in that: A receiving roller (8) is rotatably connected to the support frame (1). The receiving roller (8) abuts against both ends of the heating chamber (2), and the receiving roller (8) is used to reduce the shaking of the heating chamber (2).

9. The gypsum powder dryer according to claim 8, characterized in that: A guiding block (81) is fixedly connected to the side wall of the heating chamber (2), and the guiding block (81) is arranged at the receiving roller (8). A guiding groove (82) for assisting in supporting the guiding block (81) is provided on the side wall of the receiving roller (8).

10. A gypsum powder dryer according to claim 1, characterized in that: A plurality of guiding plates (9) are circumferentially and arrayedly distributed inside the heating chamber (2). The guiding plates (9) are used to drive the gypsum to move when the heating chamber (2) rotates.

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