Automatic drying and dehumidifying device for building gravel materials

Abstract

The invention discloses an automatic drying and dehumidifying device for building sand and gravel in the technical field of building sand and gravel treatment, which comprises a drying box, a hot air assembly and a plurality of drying cavities, an adsorption and dehumidification structure is arranged between the drying cavities, a drying net cylinder is arranged in each drying cavity, and a sealing structure and a first rotating assembly are arranged at the top of each drying net cylinder. A material overturning assembly is arranged in the drying net barrel, and a sealing assembly and a second rotating assembly are arranged at the bottom of the drying net barrel, and through the sealing structure and the sealing assembly, the two ends of the drying net barrel are sealed and sequentially opened, so that feeding, discharging and material placement are facilitated; hot air is conveyed through the hot air assembly, the hot air sequentially passes through the multiple drying cavities to dry materials in the drying cavities, and the hot air is dehumidified through the adsorption dehumidification structure; the drying net cylinder and the sealing assembly can rotate synchronously through the first rotating assembly and the second rotating assembly, then materials are driven to rotate, the materials are stirred and turned over through the material turning-over assembly, and the materials can make uniform contact with hot air.

Description

Technical Field

[0001] The invention relates to the technical field of building sand and gravel processing, in particular to an automatic drying and dehumidifying device for building sand and gravel. Background Art

[0002] During the construction process, sand and gravel are commonly used building materials, and they need to be processed accordingly according to different usage requirements. Among them, some sand and gravel need to be dried and processed before use.

[0003] Patent publication number CN221077052U is a rotary sand and gravel drying equipment, whose structure mainly includes a drying processing table, a discharge box and a drying outer cylinder. The drying outer cylinder is provided with a discharge assembly, and the outer wall of the drying outer cylinder is fixedly connected to a feed hopper. Under the transmission cooperation of the driving tooth, the gear ring and the two driven teeth, the rotating shaft and the drying drum rotate in opposite directions. Then, when the drying drum rotates to dry the sand and gravel inside, the two sand and gravel stirring blades on the rotating shaft can also evenly stir the sand and gravel, thereby improving the drying efficiency and drying effect of the sand and gravel.

[0004] However, when the above equipment is drying sand and gravel, an open feed hopper is provided on the top of the equipment. When drying the sand and gravel, part of the heat will be discharged directly from the feed hopper, which will easily cause heat waste. If the feed hopper is closed, part of the water in the sand and gravel will turn into water vapor and remain inside the equipment, increasing the humidity inside the equipment, which will reduce the drying effect and prolong the drying time.

[0005] Based on this, the present invention designs an automatic drying and dehumidifying device for building sand and gravel to solve the above problems. Summary of the Invention

[0006] The purpose of the present invention is to provide an automatic drying and dehumidifying device for building sand and gravel to solve the problems raised in the above background technology.

[0007] To achieve the above object, the present invention provides the following technical solutions:

[0008] An automatic drying and dehumidifying device for building sand and gravel includes a drying box, one side wall of the drying box is provided with a hot air component, the other side wall is provided with an air outlet slot, and the air outlet slot is provided with a fixed net;

[0009] A feed trough is provided at the upper part of the inner cavity of the drying box, and multiple vertical drying chambers are evenly arranged in a row below the feed trough. The drying chamber on one side of the drying box is connected to the hot air component, and the drying chamber on the other side of the drying box is connected to the air outlet trough. An adsorption dehumidification structure is provided between two adjacent drying chambers.

[0010] A blanking circular groove is provided at the center of the bottom of each drying chamber. The bottom surface of the drying chamber is inclined toward the blanking circular groove, and a blanking chute is provided below the blanking circular groove. A fixed frame is provided at the bottom of the drying box. The bottom of the blanking chute is connected to the fixed frame through multiple springs that are evenly arranged. A vibrator is also provided at the bottom of the blanking chute. Electromagnets are provided at the relative positions of the blanking chute and the fixed frame. The electromagnets are electrically connected to a power supply and a switch.

[0011] A plurality of feed hoppers are fixed in the feed trough, and a sealing structure is provided at the bottom of the feed hopper. A vertical drying net cylinder is provided at the center of the drying chamber, and a top plate is fixed on the top of the drying net cylinder. A vertical feed pipe is fixed at the center of the top surface of the top plate. The feed pipe is rotatably connected to the top surface of the drying chamber, and the top end extends out of the drying chamber and contacts the bottom of the sealing structure.

[0012] A sealing assembly is provided at the bottom of the drying chamber, which is in contact with the bottom end of the drying mesh cylinder. A turning assembly is provided in the drying mesh cylinder, and the turning assembly is correspondingly connected to the sealing assembly. A second rotating assembly is provided on the fixed frame, and the sealing assembly is correspondingly connected to the second rotating assembly. A first rotating assembly is provided on the feed pipe, and the first rotating assembly is correspondingly connected to the second rotating assembly.

[0013] Preferably, the first rotating assembly includes a first worm gear fixed to the outer wall of the feed pipe, and a first worm is engaged on one side of multiple first worm gears. One end of the first worm is connected to the motor, and the other end extends out of the drying box and is correspondingly connected to the second rotating assembly.

[0014] Preferably, the sealing assembly includes a circular bottom plate located at the bottom end of the drying mesh cylinder, a vertical rotating cylinder is fixed at the bottom center of the bottom plate, the turning assembly is correspondingly connected to the rotating cylinder, a vertical material blocking cylinder is fixed in the discharge chute, the rotating cylinder is slidably connected to the material blocking cylinder, and the bottom end extends out of the material blocking cylinder, and a lifting plate is provided below the fixed frame at the position corresponding to the rotating cylinder, the two sides of the lifting plate are connected to the fixed frame through a telescopic cylinder, the rotating cylinder is connected to the second rotating assembly, and the bottom end passes through the second rotating assembly and is rotatably connected to the center of the lifting plate.

[0015] Preferably, the second rotating assembly includes a rotating ring seat rotatably connected to the fixed frame, a plurality of limiting grooves are evenly arranged on the inner side wall of the rotating ring seat along the circumferential direction, the rotating cylinder is located in the rotating ring seat, and a plurality of limiting blocks are evenly fixed on the outer side wall, and the limiting blocks are slidably connected to the corresponding limiting grooves;

[0016] A second worm gear is fixed to the outside of the rotating ring seat, and a second worm is engaged with one side of the multiple second worm gears. The second worm is rotatably connected to the fixed frame, and one end of the second worm extends out of the fixed frame and is fixed with a second pulley. One end of the first worm gear extends out of the drying box and is fixed with a first pulley. The first pulley and the second pulley are connected by a transmission belt.

[0017] Preferably, the turning assembly includes a vertical rotating shaft located at the center of the drying screen drum, a plurality of turning plates are evenly fixed on the rotating shaft, the lower portion of the rotating shaft is rotatably connected to the rotating drum, and the bottom end extends out of the rotating drum, the extended section of the rotating shaft is rotatably connected to the lifting plate, and the bottom end passes through the lifting plate and is connected to the rotating drum through a transmission structure;

[0018] The transmission structure includes a first bevel gear ring fixed to the lower part of the outer side wall of the rotating cylinder, a second bevel gear ring is fixed to the bottom of the rotating shaft, and a transmission bevel gear is engaged with one side of the first bevel gear ring and the second bevel gear ring. A support seat is fixed at the corresponding position on one side of the lifting plate, and the transmission bevel gear is rotatably connected to the support seat.

[0019] Preferably, a material guide cone is provided at the upper center of the drying mesh cylinder, and the outer side of the material guide cone is fixedly connected to the inner wall of the drying mesh cylinder through a plurality of evenly arranged fixing rods. A vertical shaft hole is provided at the bottom center of the material guide cone, and the top end of the rotating shaft extends into the shaft hole.

[0020] Preferably, the hot air assembly includes a hot air blower fixed on the outer wall of the drying box, wherein a plurality of vertical hot air pipes are evenly fixed on the inner wall of a drying chamber close to the hot air blower, the hot air pipes are connected to the hot air blower through pipelines, and a plurality of air outlets are evenly provided on the side of the hot air pipe facing the drying mesh cylinder.

[0021] Preferably, the adsorption dehumidification structure is fixed to a vertical dehumidification cylinder between two adjacent drying chambers. The top and bottom ends of the dehumidification cylinder are detachably connected with end plates, and the interior of the dehumidification cylinder is filled with adsorbent. The two sides of the dehumidification cylinder are respectively located in the two drying chambers, and multiple ventilation holes are evenly arranged on the side walls.

[0022] Preferably, the sealing structure includes a sealing plate slidably connected between the top end of the feed pipe and the bottom end of the feed hopper, one side of the sealing plate is connected to the side wall of the drying box through an electric telescopic rod, and a feed slot is provided on the sealing plate.

[0023] Preferably, two symmetrically inclined windshields are fixed on the inner side wall of the drying chamber, and the outer side wall of the drying net cylinder is in contact with the two windshields.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] 1. The present invention provides a sealing structure at the top of the drying net and a sealing assembly at the bottom, so that both ends of the drying net can be closed and opened in sequence, so as to facilitate loading and unloading and material placement, and make the loading and unloading operations of materials faster and more convenient;

[0026] 2. The present invention uses a hot air component to transport hot air, which passes through multiple drying chambers in sequence to dry the materials therein, making full use of the hot air and reducing heat waste. The hot air is dehumidified by the adsorption dehumidification structure to reduce the impact of water vapor on the hot air and material drying;

[0027] 3. The present invention enables the drying mesh drum and the sealing assembly to rotate synchronously through the first rotating assembly and the second rotating assembly, thereby driving the material to rotate so that the material can be evenly contacted with the hot air, and stirs and turns the material through the turning assembly to make the material more fully contacted with the hot air, further improving the drying effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0029] Figure 1 It is a schematic diagram of the structure of the present invention;

[0030] Figure 2 for Figure 1 Schematic diagram of the structure at A in the middle;

[0031] Figure 3 Schematic diagram of the structure of the sealing plate of the present invention;

[0032] Figure 4 Schematic diagram of the bottom structure of the drying chamber of the present invention;

[0033] Figure 5 for Figure 4 Schematic diagram of the structure at B in the middle;

[0034] Figure 6 It is a structural schematic diagram of the feeding chute of the present invention;

[0035] Figure 7 for Figure 6 Schematic diagram of the structure at C in the middle;

[0036] Figure 8 A schematic diagram of the position of the windshield of the present invention;

[0037] Figure 9 It is a structural schematic diagram of the material guide cone of the present invention.

[0038] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0039] 100- drying oven, 101- feeding trough, 102- drying chamber, 103- feeding hopper, 104- dehumidification cylinder, 105- hot air blower, 106- hot air pipe, 107- air outlet trough, 108- end plate, 109- blanking circular trough, 110- wind shield;

[0040] 200-fixed frame, 201-feeding chute, 202-blocking cylinder, 203-telescopic cylinder, 204-lifting plate, 205-rotating ring seat, 206-second worm gear, 207-limiting groove, 208-second worm, 209-second pulley, 210-vibrator, 211-electromagnet;

[0041] 300-drying net cylinder, 301-top plate, 302-feeding pipe, 303-first worm gear, 304-first worm, 305-material guide cone, 306-fixing rod, 308-first pulley;

[0042] 400 - rotating shaft, 401 - turning plate, 402 - bottom plate, 403 - rotating cylinder, 404 - first bevel gear ring, 405 - second bevel gear ring, 406 - limit block, 407 - transmission bevel gear;

[0043] 500-sealing plate, 501-electric telescopic rod, 502-feeding slot. DETAILED DESCRIPTION

[0044] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0045] Example 1

[0046] Please refer to the accompanying drawings, the present invention provides a technical solution:

[0047] An automatic drying and dehumidifying device for building sand and gravel includes a drying box 100, wherein a hot air component is provided on one side wall of the drying box 100, an air outlet slot 107 is provided on the other side wall, and a fixed net is provided in the air outlet slot 107;

[0048] A feed trough 101 is provided at the upper portion of the inner cavity of the drying box 100. A plurality of vertical drying chambers 102 are evenly arranged in a row below the feed trough 101. The drying chambers 102 on one side of the drying box 100 are connected to the hot air assembly, while the drying chambers 102 on the other side of the drying box 100 are connected to the air outlet trough 107. An adsorption dehumidification structure is provided between two adjacent drying chambers 102.

[0049] A blanking circular groove 109 is provided at the center of the bottom of each drying chamber 102. The bottom surface of the drying chamber 102 is inclined toward the blanking circular groove 109, and a blanking chute 201 is provided below the blanking circular groove 109. A fixing frame 200 is provided at the bottom of the drying box 100. The bottom of the blanking chute 201 is connected to the fixing frame 200 through a plurality of evenly arranged springs. A vibrator 210 is also provided at the bottom of the blanking chute 201. The cooperation of the vibrator 210 and the spring causes the blanking chute 201 to vibrate, thereby accelerating the discharge of sand and gravel. Electromagnets 211 are respectively provided at the relative positions of the blanking chute 201 and the fixing frame 200. The electromagnets 211 are electrically connected to a power supply and a switch.

[0050] A plurality of feed hoppers 103 are correspondingly fixed in the feed trough 101. The bottom of the feed hopper 103 is provided with a sealing structure. A vertical drying mesh cylinder 300 is provided in the center of the drying chamber 102. A top plate 301 is fixed to the top of the drying mesh cylinder 300. A vertical feed pipe 302 is fixed to the center of the top surface of the top plate 301. The feed pipe 302 is rotatably connected to the top surface of the drying chamber 102, and the top end extends out of the drying chamber 102 and contacts the bottom of the sealing structure.

[0051] A sealing assembly is provided at the bottom of the drying chamber 102, and the sealing assembly is in contact with the bottom end of the drying mesh cylinder 300. A turning assembly is provided in the drying mesh cylinder 300, and the turning assembly is correspondingly connected to the sealing assembly. A second rotating assembly is provided on the fixed frame 200, and the sealing assembly is correspondingly connected to the second rotating assembly. A first rotating assembly is provided on the feed pipe 302, and the first rotating assembly is correspondingly connected to the second rotating assembly.

[0052] When feeding the drying mesh drum 300, the top of the feed pipe 302 is opened through the sealing structure, so that the material port at the bottom of the feed hopper 103 is connected to the feed pipe 302, so that the sand and gravel materials in the feed hopper 103 can enter the drying mesh drum 300, and the bottom end of the drying mesh drum 300 is closed by the sealing component, so that the sand and gravel materials can be placed in the drying mesh drum 300, completing the feeding of the sand and gravel materials, making the material feeding trough more convenient, and after the feeding is completed, the feed pipe 302 is closed by the sealing structure to prevent subsequent hot air from being discharged from the feed pipe 302, and through the repulsive effect of the electromagnet 211, the bottom surface of the discharge trough 201 is in contact with the bottom end of the blanking circular groove 109, thereby achieving a sealing effect.

[0053] During drying, the first rotating assembly is started, and the second rotating assembly is driven to rotate, so that the sealing assembly and the drying net cylinder 300 rotate synchronously, and the material rotates accordingly. During the rotation of the material, the hot air assembly delivers hot air to the drying chamber 102 on one side to dry the material therein. The rotation makes the material contact with the hot air uniformly, and the turning assembly moves relative to the material, so that the material and the hot air are more fully contacted, thereby improving the drying effect.

[0054] After contacting the material, the hot air in the drying chamber 102 moves to the next drying chamber 102 to continue drying the material, thereby making full use of the hot air and reducing heat waste; when the hot air passes through the material, a certain amount of water vapor will be generated. Therefore, each time the hot air moves to the next drying chamber 102, it passes through the adsorption and dehumidification structure between the two drying chambers 102 to reduce the water vapor in the hot air, so that the hot air remains dry, thereby reducing the impact of water vapor on the drying of the material in the subsequent drying chamber 102, and is finally discharged through the air outlet slot 107 on the other side of the drying box 100.

[0055] Among them, the drying speed of the drying chamber 102 close to the hot air component is the fastest. When the hot air moves along multiple drying chambers 102, the temperature gradually decreases. Therefore, the drying speed of subsequent drying chambers 102 gradually decreases. In order to ensure the drying effect, the drying time of the drying chambers 102 at different positions can be increased according to the change of the drying speed.

[0056] When the drying time is reached, the sealing assembly moves downward and disengages from the drying mesh drum 300. During the rotation, the material is discharged from the drying mesh drum 300 and falls to the bottom of the drying chamber 102. After passing through the blanking circular groove 109, it enters the discharge chute 201. The electromagnet 211 is powered off, creating a certain space between the blanking circular groove 109 and the bottom surface of the discharge chute 201. Then, the spring and vibrator 210 cooperate to accelerate the discharge of the material, realize the material discharge operation, and make the material discharge faster and more convenient.

[0057] Among them, the first rotating component includes a first worm gear 303 fixed to the outer wall of the feed pipe 302, and a first worm 304 is engaged with one side of multiple first worm gears 303. One end of the first worm 304 is connected to the motor, and the other end extends out of the drying box 100 and is correspondingly connected to the second rotating component.

[0058] When the drying net drum 300 is working, the first worm 304 is driven by the motor, so that the multiple first worm gears 303 drive the corresponding feeding drums to rotate, and then the drying net drum 300 rotates. At the same time, the first rotating assembly drives the second rotating assembly to rotate, so that the sealing assembly and the drying net drum 300 rotate synchronously, so that the material in the drying net drum 300 can be evenly contacted with the hot air during the rotation process.

[0059] Among them, the sealing assembly includes a circular bottom plate 402 located at the bottom end of the drying mesh cylinder 300, and a vertical rotating cylinder 403 is fixed at the bottom center of the bottom plate 402. The turning assembly is correspondingly connected to the rotating cylinder 403, and a vertical material blocking cylinder 202 is fixed in the discharge chute 201. The rotating cylinder 403 is slidably connected to the material blocking cylinder 202, and the bottom end extends out of the material blocking cylinder 202. A lifting plate 204 is provided below the fixed frame 200 at a position corresponding to the rotating cylinder 403. The two sides of the lifting plate 204 are connected to the fixed frame 200 through a telescopic cylinder 203. The rotating cylinder 403 is connected to the second rotating assembly, and the bottom end passes through the second rotating assembly and is rotatably connected to the center of the lifting plate 204.

[0060] When the drying net drum 300 is working, the bottom plate 402 contacts the bottom end of the drying net drum 300, so that the bottom end of the drying net drum 300 is closed, so that the material can be placed in the drying net drum 300, and the rotating cylinder 403 is driven by the second rotating assembly to drive the bottom plate 402 to rotate and keep synchronization with the drying net drum 300; when it is necessary to unload the material, the lifting plate 204 is driven by the telescopic cylinder 203 to drive the rotating cylinder 403 and other structures to move downward, thereby moving the bottom plate 402 downward and separating from the drying net drum 300, so that the material is discharged from the drying net drum 300 during the rotation process, and falls through the blanking circular groove 109 and enters the unloading chute 201.

[0061] The second rotating assembly includes a rotating ring seat 205 rotatably connected to the fixed frame 200. The inner side wall of the rotating ring seat 205 is provided with a plurality of limiting grooves 207 evenly distributed along the circumferential direction. The rotating cylinder 403 is located in the rotating ring seat 205, and a plurality of limiting blocks 406 are evenly fixed on the outer side wall. The limiting blocks 406 are slidably connected to the corresponding limiting grooves 207.

[0062] A second worm gear 206 is fixed to the outer side of the rotating ring seat 205, and a second worm 208 is meshed with one side of multiple second worm gears 206. The second worm 208 is rotatably connected to the fixed frame 200, and one end of the second worm 208 extends out of the fixed frame 200 and is fixed with a second pulley 209. One end of the first worm gear 303 extends out of the drying box 100 and is fixed with a first pulley 308. The first pulley 308 and the second pulley 209 are connected by a transmission belt.

[0063] When the first worm 304 rotates, the second worm 208 rotates through the transmission of the first pulley 308 and the second pulley 209, and then the multiple second worm gears 206 drive the corresponding rotating ring seat 205 to rotate, and through the action of the limiting groove 207 and the limiting block 406, the rotating ring seat 205 drives the rotating cylinder 403 to rotate, thereby realizing the rotation of the sealing assembly; when the rotating cylinder 403 and the bottom plate 402 move with the lifting plate 204, the limiting block 406 slides relative to the limiting groove 207 and remains connected, thereby ensuring the rotation of the rotating cylinder 403.

[0064] Example 2

[0065] The structure of this embodiment is basically the same as that of the first embodiment, except that the turning assembly includes a vertical rotating shaft 400 located at the center of the drying net drum 300, and a plurality of turning plates 401 are evenly fixed on the rotating shaft 400. The lower part of the rotating shaft 400 is rotatably connected to the rotating cylinder 403, and the bottom end extends out of the rotating cylinder 403. The extended section of the rotating shaft 400 is rotatably connected to the lifting plate 204, and the bottom end passes through the lifting plate 204 and is connected to the rotating cylinder 403 through a transmission structure. When the rotating cylinder 403 drives the bottom plate 402 to rotate, the rotating shaft 400 drives the turning plates 401 to rotate through the transmission structure, and the rotation direction of the rotating shaft 400 is opposite to the rotation direction of the bottom plate 402 and the drying net drum 300, so that the turning plates 401 are turned against the movement direction of the material, so that the material is more fully in contact with the hot air, thereby improving the drying effect;

[0066] The transmission structure includes a first bevel gear ring 404 fixed to the lower part of the outer wall of the rotating cylinder 403, and a second bevel gear ring 405 is fixed to the bottom of the rotating shaft 400. A transmission bevel gear 407 is meshed with one side of the first bevel gear ring 404 and the second bevel gear ring 405. A support seat is fixed at a corresponding position on one side of the lifting plate 204, and the transmission bevel gear 407 is rotatably connected to the support seat. When the rotating cylinder 403 rotates, the rotating shaft 400 rotates with the rotation of the rotating cylinder 403 through the transmission of the first bevel gear ring 404, the transmission bevel gear 407 and the second bevel gear ring 405, and the direction of the rotating shaft 400 is adjusted to make it opposite to the rotation direction of the rotating cylinder 403, so as to drive the turning plate 401 to stir and turn the material in the opposite direction of the movement of the material.

[0067] Example 3

[0068] The structure of this embodiment is basically the same as that of the first embodiment, except that the hot air assembly includes a hot air blower 105 fixed on the outer wall of the drying box 100, and a plurality of vertical hot air pipes 106 are evenly fixed on the inner wall of a drying chamber 102 close to the hot air blower 105. The hot air pipes 106 are connected to the hot air blower 105 through pipes, and a plurality of air outlets are evenly provided on the side of the hot air pipe 106 facing the drying mesh cylinder 300. Hot air is input into the drying box 100 through the hot air blower 105 and the hot air pipe 106, and contacts the drying mesh cylinder 300 in the corresponding drying chamber 102, so as to dry the material in the drying mesh cylinder 300.

[0069] The adsorption dehumidification structure is fixed to the vertical dehumidification cylinder 104 between the two adjacent drying chambers 102. The top and bottom ends of the dehumidification cylinder 104 are detachably connected with end plates 108, and the interior of the dehumidification cylinder 104 is filled with adsorbent. The two sides of the dehumidification cylinder 104 are respectively located in the two drying chambers 102, and a plurality of ventilation holes are evenly arranged on the side walls. After the hot air in the drying chamber 102 is dried, it will contain some water vapor, etc. When passing through the adsorption dehumidification structure, it enters the dehumidification cylinder 104 through the ventilation holes, contacts with the adsorbent, and undergoes adsorption dehumidification treatment, and then enters the next drying chamber 102 through the ventilation holes on the other side to continue the drying process.

[0070] Example 4

[0071] The structure of this embodiment is basically the same as that of the second embodiment, except that a material guide cone 305 is provided at the upper center of the drying mesh drum 300, and the outer side of the material guide cone 305 is fixedly connected to the inner side wall of the drying mesh drum 300 by multiple fixed rods 306 arranged evenly. A vertical shaft hole is provided at the bottom center of the material guide cone 305, and the top end of the rotating shaft 400 extends into the shaft hole.

[0072] During the rotation of the rotating shaft 400, the axial hole of the material guide cone 305 provides a certain limiting support for the top end of the rotating shaft 400, thereby improving the position stability of the top end of the rotating shaft 400, and the conical top surface of the material guide cone 305 provides a guiding function for the falling sand and gravel. A plurality of balls can be evenly arranged on the side wall of the axial hole so that the side wall of the rotating shaft 400 contacts the balls. While the balls limit the position of the rotating shaft 400, the friction of the rotating shaft 400 when it moves relative to the material guide cone 305 is reduced.

[0073] Example 5

[0074] The structure of this embodiment is basically the same as that of embodiment 1, except that the sealing structure includes a sealing plate 500 that is slidably connected between the top end of the feed pipe 302 and the bottom end of the feed hopper 103, and one side of the sealing plate 500 is connected to the side wall of the drying box 100 through an electric telescopic rod 501, and a feed slot 502 is provided on the sealing plate 500. When the feed pipe 302 is closed, the position of the feed slot 502 is staggered with the feed pipe 302, so that the top end of the feed pipe 302 is closed by the sealing plate 500 to prevent hot air from being discharged from the feed pipe 302. When feeding is required, the sealing plate 500 is moved by the electric telescopic rod 501, so that the position of the feed slot 502 coincides with the position of the feed pipe 302, so that the sand and gravel in the feed hopper 103 can fall through the feed pipe 302 and enter the drying mesh cylinder 300, thereby realizing the feeding operation.

[0075] Example 6

[0076] The structure of this embodiment is basically the same as that of the first embodiment, except that two symmetrically inclined windshields 110 are fixed to the inner wall of the drying chamber 102, and the outer wall of the drying mesh drum 300 is in contact with the two windshields 110. The windshields 110 concentrate the hot air in the drying chamber 102 and blow it toward the drying mesh drum 300, thereby reducing the waste of hot air.

[0077] Throughout this specification, references to terms such as "one embodiment," "example," or "specific example" indicate that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0078] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the present invention to specific embodiments. Obviously, many modifications and variations are possible based on the contents of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. An automatic drying and dehumidifying device for building sand and gravel, comprising a drying box (100), wherein one side wall of the drying box (100) is provided with a hot air component, and the other side wall is provided with an air outlet slot (107), characterized in that: A feed trough (101) is provided at the upper portion of the inner cavity of the drying box (100), and a plurality of vertical drying chambers (102) are evenly arranged below the feed trough (101). The drying chamber (102) located on one side of the drying box (100) is connected to a hot air component, and the drying chamber (102) located on the other side of the drying box (100) is connected to an air outlet trough (107), and an adsorption dehumidification structure is provided between two adjacent drying chambers (102); A blanking circular groove (109) is provided at the center of the bottom of each drying chamber (102), and a blanking trough (201) is provided below the blanking circular groove (109). A fixing frame (200) is provided at the bottom of the drying box (100). The bottom of the blanking trough (201) is connected to the fixing frame (200) via a plurality of evenly arranged springs. Electromagnets (211) are provided at relative positions of the blanking trough (201) and the fixing frame (200). The electromagnets (211) are electrically connected to a power supply and a switch. A plurality of feed hoppers (103) are correspondingly fixed in the feed trough (101), and a sealing structure is provided at the bottom of the feed hopper (103). A vertical drying net cylinder (300) is provided at the center of the drying chamber (102), a top plate (301) is fixed at the top of the drying net cylinder (300), and a vertical feed pipe (302) is fixed at the center of the top surface of the top plate (301). The feed pipe (302) is rotatably connected to the top surface of the drying chamber (102), and the top end of the feed pipe extends out of the drying chamber (102) and contacts the bottom of the sealing structure. A sealing assembly is provided at the bottom of the drying chamber (102), and the sealing assembly contacts the bottom end of the drying mesh cylinder (300). A turning assembly is provided in the drying mesh cylinder (300), and the turning assembly is correspondingly connected to the sealing assembly. A second rotating assembly is provided on the fixing frame (200), and the sealing assembly is correspondingly connected to the second rotating assembly. A first rotating assembly is provided on the feeding pipe (302), and the first rotating assembly is correspondingly connected to the second rotating assembly.

2. The automatic drying and dehumidifying device for building sand and gravel according to claim 1 is characterized in that: The first rotating assembly includes a first worm gear (303) fixed to the outer wall of the feed pipe (302), and a first worm (304) is meshed with one side of multiple first worm gears (303). One end of the first worm (304) is connected to the motor, and the other end extends out of the drying box (100) and is correspondingly connected to the second rotating assembly.

3. The automatic drying and dehumidifying device for building sand and gravel according to claim 2 is characterized in that: The sealing assembly includes a circular bottom plate (402) located at the bottom end of the drying net cylinder (300), a vertical rotating cylinder (403) is fixed at the bottom center of the bottom plate (402), and the turning assembly is correspondingly connected to the rotating cylinder (403), a vertical material blocking cylinder (202) is fixed in the material discharge chute (201), the rotating cylinder (403) is slidably connected to the material blocking cylinder (202), and the bottom end extends out of the material blocking cylinder (202), a lifting plate (204) is provided below the fixed frame (200) at a position corresponding to the rotating cylinder (403), both sides of the lifting plate (204) are connected to the fixed frame (200) through a telescopic cylinder (203), the rotating cylinder (403) is connected to the second rotating assembly, and the bottom end passes through the second rotating assembly and is rotatably connected to the center of the lifting plate (204).

4. The automatic drying and dehumidifying device for building sand and gravel according to claim 3 is characterized in that: The second rotating assembly comprises a rotating ring seat (205) rotatably connected to the fixed frame (200), a plurality of limiting grooves (207) are evenly arranged on the inner side wall of the rotating ring seat (205) along the circumferential direction, the rotating cylinder (403) is located in the rotating ring seat (205), and a plurality of limiting blocks (406) are evenly fixed on the outer side wall, and the limiting blocks (406) are slidably connected to the corresponding limiting grooves (207); A second worm gear (206) is fixed on the outer side of the rotating ring seat (205), and a second worm (208) is meshed with one side of the plurality of second worm gears (206). The second worm (208) is rotatably connected to the fixed frame (200), and one end of the second worm (208) extends out of the fixed frame (200) and is fixed with a second pulley (209). One end of the first worm gear (303) extends out of the drying box (100) and is fixed with a first pulley (308). The first pulley (308) and the second pulley (209) are connected by a transmission belt.

5. The automatic drying and dehumidifying device for building sand and gravel according to claim 3 is characterized in that: The turning assembly comprises a vertical rotating shaft (400) located at the center of the drying net cylinder (300), a plurality of turning plates (401) are evenly fixed on the rotating shaft (400), the lower portion of the rotating shaft (400) is rotatably connected to the rotating cylinder (403), and the bottom end extends out of the rotating cylinder (403), the extended section of the rotating shaft (400) is rotatably connected to the lifting plate (204), and the bottom end passes through the lifting plate (204) and is connected to the rotating cylinder (403) through a transmission structure; The transmission structure comprises a first bevel gear ring (404) fixed to the lower portion of the outer wall of the rotating cylinder (403); a second bevel gear ring (405) is fixed to the bottom of the rotating shaft (400); a transmission bevel gear (407) is meshed with one side of the first bevel gear ring (404) and the second bevel gear ring (405); a support seat is fixed at a corresponding position on one side of the lifting plate (204); and the transmission bevel gear (407) is rotatably connected to the support seat.

6. The automatic drying and dehumidifying device for building sand and gravel according to claim 5, characterized in that: A material guide cone (305) is provided at the center of the upper portion of the drying net cylinder (300). The outer side of the material guide cone (305) is fixedly connected to the inner side wall of the drying net cylinder (300) through a plurality of evenly arranged fixing rods (306). A vertical shaft hole is provided at the center of the bottom of the material guide cone (305), and the top end of the rotating shaft (400) extends into the shaft hole.

7. The automatic drying and dehumidifying device for building sand and gravel according to claim 1 is characterized in that: The hot air assembly comprises a hot air blower (105) fixed on the outer wall of the drying box (100), a plurality of vertical hot air pipes (106) are evenly fixed on the inner wall of a drying chamber (102) close to the hot air blower (105), the hot air pipes (106) are connected to the hot air blower (105) through a pipeline, and a plurality of air outlets are evenly provided on the side of the hot air pipe (106) facing the drying net cylinder (300).

8. The automatic drying and dehumidifying device for building sand and gravel according to claim 1 is characterized in that: The adsorption dehumidification structure is fixed to a vertical dehumidification cylinder (104) between two adjacent drying chambers (102). The interior of the dehumidification cylinder (104) is filled with adsorbent. Both sides of the dehumidification cylinder (104) are respectively located in the two drying chambers (102), and a plurality of ventilation holes are evenly arranged on the side walls.

9. The automatic drying and dehumidifying device for building sand and gravel according to claim 1, characterized in that: The sealing structure includes a sealing plate (500) slidably connected between the top end of the feed pipe (302) and the bottom end of the feed hopper (103); one side of the sealing plate (500) is connected to the side wall of the drying box (100) via an electric telescopic rod (501); and a feed notch (502) is provided on the sealing plate (500).

10. The automatic drying and dehumidifying device for building sand and gravel according to any one of claims 1 to 9, characterized in that: Two symmetrically inclined windshields (110) are fixed on the inner side wall of the drying chamber (102), and the outer side wall of the drying net cylinder (300) is in contact with the two windshields (110).

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