A material rolling and conveying module and a drying chamber thereof

Abstract

A material rolling and conveying module, and a drying chamber thereof, the material rolling and conveying module comprising: a conveying platform composed of a bar assembly, a rolling device arranged above the conveying platform, and a supporting frame. A first motor drives a first drive mechanism to drive the conveying platform to perform reciprocating synchronous circular motion, carrying and pushing the material forward; the rolling device comprises: a rolling platform and a second drive mechanism; the second motor drives the second drive mechanism to drive the rolling platform to perform reciprocating synchronous circular motion perpendicular to the propulsion direction of the material, to roll and scrape the material; the second motor alternately rotates forward and reverse, and the forward and reverse times are equal. A drying chamber, comprising a material rolling and conveying module, the number of which is one or a plurality of modules arranged in a stacked manner. The rolling platform of the present invention rolls in forward and reverse directions, so that the material can be more evenly distributed on the conveying platform, increasing the evaporation area and improving the drying efficiency.

Description

[Technical field]

[0001] The present invention belongs to the technical field of material drying equipment, and specifically refers to a material rolling and conveying module and a drying chamber thereof. [Background technology]

[0002] Material drying equipment is widely used in the drying process of chemical, food, pharmaceutical, building materials and other industries. In the field of sludge treatment, the mud cake produced by the sludge dewatering machine, after granulation or strip making, falls freely onto the mesh track. Through the multi-layer reciprocating mesh belt transportation, the moisture of the mud cake on the mesh belt gradually evaporates, and finally forms a material with a lower moisture content for discharge. The drying efficiency of the mesh belt drying equipment in the prior art is low. After the mud cake falls onto the mesh belt, it cannot be evenly spread in a short time, and its shape remains unchanged. It may even block the ventilation mesh of the filter on the mesh belt, affecting the ventilation and evaporation effects.

[0003] Chinese invention patent ZL201910838624.3 discloses a drying device with a material conveying device having a rolling function, wherein the material conveying device uses a bar assembly to form a platform, and a rolling device is arranged above the platform. In the process of material conveying, the interactive bars of the device produce transparent gaps, which improve the fluidity of the gas and are conducive to the drying of the material. In the process of material conveying, the material on the rolling module platform is rolled, which increases the evaporation area of ​​the material and improves the drying efficiency. However, the inventors found the following problems during the use of the device: 1. In the specific embodiment of the specification disclosed in the invention patent, the rolling drive center axis of the rolling device is driven by the driving mechanism of the bar assembly. Since the driving center axis of the bar assembly is ultimately to push the material forward for conveying, the rolling device linked to it moves to one side for a long time. The material will be piled up on one side after being rolled and moved to one side by the rolling device for a long time, resulting in the material on the platform being unable to be evenly distributed, affecting the drying effect and the stability of operation. 2. The patent document does not mention the solution of directly driving the drive shaft through gears, and the several driving methods mentioned in the embodiments are likely to cause the drive shaft to be difficult to synchronize during operation or the structure is not stable enough. 3. There is no mention of using a hollow plate for the rolling plate. The rolling plate without a hollow plate is likely to cause the material that falls from the ventilation gap of the upper layer of the grid assembly during the rolling process to accumulate on the rolling plate, and it cannot work stably for a long time. 4. As a platform component, it must be installed in the drying room for use, which will cause heat leakage and loss, and reduce the heat utilization efficiency. 5. It is difficult to increase the drying area of ​​the platform by flexibly increasing the number of layers. [Summary of the invention]

[0004] One of the technical problems to be solved by the present invention is to provide a material rolling and conveying module with high drying efficiency and capable of being stacked.

[0005] The second technical problem to be solved by the present invention is to provide a drying chamber with high drying efficiency.

[0006] The present invention is achieved in that:

[0007] A material rolling conveying module comprises: a conveying platform composed of a bar assembly, a rolling device arranged above the conveying platform, and a supporting frame, wherein the conveying platform composed of the bar assembly is connected to a first driving mechanism, and the first driving mechanism is connected to a first motor; the first motor drives the first driving mechanism to drive the conveying platform to perform reciprocating synchronous circular motion, carrying and pushing the material forward;

[0008] The rolling device comprises: a rolling platform and a second driving mechanism; the rolling platform is connected to the second driving mechanism, and the second driving mechanism is connected to a second motor; the second motor drives the second driving mechanism to drive the rolling platform to perform a reciprocating synchronous circular motion perpendicular to the propulsion direction of the material, so as to roll and scrape the material; the second motor rotates forward and reverse alternately, and the forward and reverse times are equal;

[0009] The supporting frame is used to support the first driving mechanism and the second driving mechanism.

[0010] Further, the first driving mechanism comprises: a group of first driving shafts, a group of first gear sets, and at least one group of guide bars;

[0011] The first gear set comprises a plurality of first drive shaft gears and first transmission gears meshing in sequence;

[0012] Each of the first driving shafts is fixedly mounted on one of the first driving shaft gears;

[0013] Each group of the first driving shafts is also passed through a group of the guide bars of the same group through a group of the first eccentric devices; each group of the guide bars is fixedly connected to the corresponding bar assembly of the same group of the conveying platform;

[0014] Any first gear in the group of first gear sets is connected to the first motor, the first motor drives the first gear, and the first gear drives all the first drive shaft gears to move at the same speed and in the same direction, thereby driving the conveying platform formed by the grid bar assembly to perform reciprocating synchronous circular motion;

[0015] The first motor and the first gear set are mounted on a side surface of the support frame parallel to a moving direction of the conveying platform.

[0016] Furthermore, the second driving mechanism comprises: a set of second driving shafts, a set of second gear sets, and a set of rolling guide plates;

[0017] The rolling platform is connected to the set of rolling guide plates;

[0018] The second gear set comprises a plurality of second drive shaft gears and second transmission gears meshing in sequence;

[0019] Each of the second driving shafts is fixedly mounted on a second driving shaft gear;

[0020] Each of the second driving shafts is also passed through a set of second eccentric devices and is disposed on the set of rolling guide plates;

[0021] Any second gear in the set of second gear groups is connected to the second motor, the second motor drives the second gear, and the second gear drives all the second drive shaft gears to move at the same speed and in the same direction, thereby driving the rolling platform to perform reciprocating synchronous circular motion;

[0022] The second motor and the second gear set are mounted on a side surface of the support frame that is perpendicular to the moving direction of the conveying platform.

[0023] Furthermore, a conveying platform consisting of one or more layers of grid bar assemblies is additionally provided above, below, or above and below the conveying platform consisting of the grid bar assemblies;

[0024] The corresponding guide bars of the additional conveying platform are driven by a group of auxiliary drive shaft gears meshing with the first drive shaft gear, generating a reciprocating synchronous circular motion opposite to the movement direction of the original conveying platform, so that the material on the upper conveying platform falls to the beginning of the next conveying platform when it reaches the end.

[0025] Furthermore, a rolling platform is provided above the additional conveying platform;

[0026] The rolling platform is connected to the group of rolling guide plates and is driven by the second motor to perform reciprocating synchronous circular motion perpendicular to the moving direction of the conveying platform.

[0027] Furthermore, the rolling platform below the second layer is a hollow plate to prevent accumulation of materials that fall from the ventilation slits of the conveying platform on the upper layer.

[0028] Furthermore, the rolling platform is made of a heating plate, or conducts heat through a heating plate.

[0029] A drying chamber, comprising a material rolling and conveying module as described above, the number of which is one or a plurality of materials arranged in a stacked manner;

[0030] The support frame of each material rolling and conveying module is a rectangular frame surrounding the conveying platform and the rolling platform, the rectangular frame has an inner wall and an outer wall, and a heat insulation material is filled in the middle to form a heat insulation layer; the rectangular frame is provided with doors and windows that can be opened and closed for easy observation and operation;

[0031] The plurality of material crushing and conveying modules stacked in layers form a steamer-type structure, and the support frame of each material crushing and conveying module is locked and fixedly connected up and down;

[0032] An upper heat insulation layer is provided above the support frame of the material rolling and conveying module located at the uppermost layer;

[0033] A lower heat insulation layer is provided at the bottom of the support frame of the material crushing and conveying module located at the bottom layer;

[0034] The upper heat insulation layer, the lower heat insulation layer, and the support frame of each layer form a closed box, enclosing all the conveying platforms and the rolling platforms;

[0035] The upper heat insulation layer is provided with a feeding mechanism, and the material to be dried enters the starting end of the conveying platform of the first layer from the feeding mechanism;

[0036] The support frame of the material rolling and conveying module at the bottom layer is provided with an air inlet and a discharging mechanism; the air inlet is used to connect to a heat source; the discharging mechanism is used to discharge the dried material;

[0037] A return air outlet is provided on the support frame of the material crushing and conveying module located at the uppermost layer.

[0038] Furthermore, the discharging mechanism comprises: a feeding bin part and a transfer bin part;

[0039] The feed bin is used to receive materials;

[0040] The transfer bin part is used to discharge materials.

[0041] Furthermore, the transfer bin part comprises: a horizontally placed cylindrical shell, a rotating shaft mechanism, and a third motor;

[0042] The cylindrical housing has an inlet and an outlet, the inlet is located at the top and connected to the feed bin, and the outlet is located at the bottom for unloading;

[0043] The rotating shaft mechanism is arranged in a cylindrical housing;

[0044] The rotating shaft mechanism comprises: a central shaft, and n blades evenly distributed on the central shaft, wherein n≥3; the width of the blades is equivalent to the inner diameter of the cylindrical shell;

[0045] The cylindrical shell comprises two arc-shaped shells of axially symmetrical structure, and the angle of the arc-shaped shells is ≥360° / n;

[0046] The third motor is mounted at the end of the cylindrical housing and connected to the central axis of the rotating shaft mechanism in the cylindrical housing;

[0047] The third motor drives the rotating shaft mechanism to rotate to unload materials, and the transfer bin portion always remains in a closed state to prevent hot air leakage.

[0048] The advantages of the present invention are:

[0049] 1. The rolling time of the rolling platform in the forward and reverse directions is equal, so that the material can be more evenly distributed on the conveying platform composed of the grid assembly, the material can be rolled more comprehensively, the evaporation area is increased, and the drying efficiency is improved.

[0050] 2. The rolling platform moves the materials on the conveying platform composed of the bar components to the left and right to prevent them from being trapped on the bars and not being transported forward.

[0051] 3. Through the interaction between the rolling device and the bar assembly, the bars are slightly deformed, which can clean the side walls of the bars and further ensure that the ventilation gaps are not blocked.

[0052] 4. The hollow rolling platform can carry and transfer part of the material, further increasing the evaporation area of ​​the material.

[0053] 5. Advantages of gear drive: The structure is simpler and more compact, which is convenient for installation and sealing protection of gears. Higher operating accuracy. Not easy to deform and more stable in operation. The bar assembly and the rolling device are driven independently, and it is easier to adjust the operating frequency and interaction time of the bar assembly and the rolling device. The gear set of the bar assembly can naturally drive the adjacent layers of bars to run in the opposite direction, forming a reasonable material conveying and drying path; and the gear set of the rolling device makes it easier to achieve rolling of the upper and lower platforms with one rolling transmission.

[0054] 6. The modules can be stacked in multiple levels to increase the processing capacity by using the height, without taking up more floor space and reducing the number of dryers used.

[0055] 7. No need to configure a separate drying room, the platform modules are stacked to form a drying room. Not only is it easy to install and disassemble, but the material transmission path is also simpler, more efficient and faster, saving the energy required for material transportation and lifting.

Brief Description of the Drawings

[0056] The present invention will be further described below in conjunction with embodiments with reference to the accompanying drawings.

[0057] Figure 1 It is a schematic diagram of the overall structure of a material rolling and conveying module of the present invention.

[0058] Figure 2 yes Figure 1 Schematic diagram of the explosion structure.

[0059] Figure 3 yes Figure 1 Schematic diagram of the positional relationship between the rolling platform and the rolling guide plate.

[0060] Figure 4 It is a schematic diagram of the overall structure of a drying chamber of the present invention.

[0061] Figure 5 yes Figure 4 Schematic diagram of the back side.

[0062] Figure 6 yes Figure 4 A structural schematic diagram of a discharging mechanism in FIG. [Specific implementation method]

[0063] First embodiment: (Material rolling conveying module with two-layer conveying platform)

[0064] like Figures 1 to 3 As shown, a material rolling conveying module 1 includes a conveying platform 100, 100' composed of two layers of stacked bar assemblies, and a rolling platform 200, 200' and a support frame 300 are arranged above each layer of conveying platform 100, 100'. The conveying platform 100, 100' composed of the bar assembly is driven by a first driving mechanism 400 to perform reciprocating synchronous circular motion, carrying and pushing the material forward; the rolling platform 200, 200' is driven by a second driving mechanism 500 to perform reciprocating synchronous circular motion perpendicular to the pushing direction of the material. The support frame 300 is used to support the first driving mechanism 400 and the second driving mechanism 500.

[0065] Among them, the specific structure of the conveying platform 100, 100' constituted by the bar assembly is the same as the structure of the stacked bar push-type material conveying platform in the drying equipment of a material conveying device with a rolling function disclosed in Chinese invention patent ZL201910838624.3 (hereinafter referred to as the "comparative document"). The specific working principle of the first drive mechanism 300 and the second drive mechanism 400 is also the same as the working principle of the drive mechanism disclosed in the comparative document. The difference is that the conveying platform drive mechanism and the rolling drive mechanism in the comparative document are linked, and the rolling drive center axis of the rolling drive mechanism is driven by the drive center axis of the conveying platform drive mechanism. The two are linked to each other, resulting in the rolling plate can only passively move in one direction. The first drive mechanism 400 and the second drive mechanism 500 in the present invention are independent of each other and are arranged on two mutually perpendicular sides.

[0066] In this embodiment, Figure 2 As shown, the first driving mechanism 400 includes: a set of first driving shafts 401 (two), a set of first gear sets 402 (three), and at least one set of guide bars of the first layer conveying platform 100 (the specific structure, position, and number of the guide bars can be found in the reference document);

[0067] A first gear set 402, including a first drive shaft gear 4021, a first transmission gear 4022, and a first drive shaft gear 4021 meshed in sequence;

[0068] Each first driving shaft 401 is fixedly mounted on a first driving shaft gear 4021;

[0069] A set of first driving shafts 4021 are also passed through a set of first eccentric devices 404 and are arranged on the same set of guide bars of the first transport platform 100;

[0070] The transmission gear 4022 is connected to the first motor 600, and the first motor 600 drives the transmission gear 4022, which drives the two first drive shaft gears 4021 to move at the same speed and in the same direction, thereby driving the conveying platform 100 composed of the grid bar assembly to perform reciprocating synchronous circular motion.

[0071] The first motor 600 and the first gear set 402 are mounted on a side surface of the support frame 300 parallel to the moving direction of the conveying platform 100 .

[0072] A secondary drive shaft gear 4021' is respectively meshed below the two first drive shaft gears 4021, and a group of secondary drive shafts 401' (two) of the second-level conveying platform 100' are respectively fixedly penetrated on a secondary drive shaft gear 4021', and a group of secondary drive shafts 401' are also penetrated on the same group of guide bars of the second-level conveying platform 100' through a group of first eccentric devices 404'; the two first drive shaft gears 4021 drive the two secondary drive shaft gears 4021' to produce the same speed and direction movement in the opposite direction to the two first drive shaft gears 4021, thereby driving the second-level conveying platform 100' to perform reciprocating synchronous circular motion in the opposite direction to the first conveying platform 100.

[0073] The second driving mechanism 500 includes: a set of second driving shafts 501 (two), a set of second gear sets 502 (three), and a set of rolling guide plates 503 (two);

[0074] Both sides of the rolling platform 200 are respectively fixedly connected to a rolling guide plate 503;

[0075] A second gear set 502, including a second drive shaft gear 5021, a second transmission gear 5022, and a second drive shaft gear 5021 meshed in sequence;

[0076] Each second driving shaft 501 is fixedly mounted on a second driving shaft gear 5022;

[0077] Each second driving shaft 501 is also passed through a set of second eccentric devices 504 and is disposed on a set of rolling guide plates 503;

[0078] The transmission gear 5022 is connected to the second motor 700. The second motor 700 drives the transmission gear 5022. The transmission gear 5022 drives the two second drive shaft gears 5021 to move at the same speed and in the same direction, thereby driving the rolling platform 200 to perform reciprocating synchronous circular motion.

[0079] The second motor 700 and the second gear set 502 are mounted on the side surface of the support frame 300 that is perpendicular to the moving direction of the conveying platform 100 .

[0080] The support frame 300 is a rectangular frame surrounding the conveying platform 100 and the rolling platform 200. The rectangular frame has an inner wall 301 and an outer wall 302, and is filled with insulation material in the middle to form an insulation layer 303. The rectangular frame is provided with switchable doors and windows 304 for easy observation and operation.

[0081] The conveying platform 100 and the rolling platform 200 in this embodiment are two layers. In practice, only one layer or multiple layers may be provided. In the case of multiple layers, the rolling platforms 200 from the second layer and below are provided as hollow plates, which can carry and transfer a part of the materials, thereby increasing the evaporation area.

[0082] The material crushing and conveying module 1 can be placed in a drying room for use.

[0083] Second embodiment: (Drying chamber including material rolling and conveying module)

[0084] like Figure 4 and Figure 5 As shown, a drying chamber 2 comprises: four (in the first embodiment) material crushing and conveying modules 1 arranged in stacked form.

[0085] The four stacked material crushing and conveying modules 1 form a steamer-type structure, and the support frame 300 of each material crushing and conveying module 1 is locked and fixedly connected up and down.

[0086] An upper heat insulation layer 305 is arranged above the support frame 300 of the material crushing and conveying module 1 located at the uppermost layer.

[0087] A lower heat insulation layer 306 is provided at the bottom of the support frame 300 of the material crushing and conveying module 1 at the bottom layer.

[0088] The upper insulation layer 305 , the lower insulation layer 306 , and the support frame 300 of each layer form a closed box, enclosing all the conveying platforms 100 and the rolling platforms 200 .

[0089] The upper heat-insulating layer 305 is provided with a feed inlet 3051 , and the material to be dried enters the beginning of the conveying platform 100 of the first layer from the feed inlet 3051 .

[0090] The support frame 300 of the material rolling and conveying module 1 at the bottom layer is provided with an air inlet 307 and a discharging mechanism 800. The air inlet 307 is used to connect to a heat source. The discharging mechanism 800 is used to discharge the dried material.

[0091] The support frame 300 of the material crushing and conveying module 1 located at the uppermost layer is provided with a return air port 308 .

[0092] like Figure 6 As shown, the discharging mechanism 800 includes: a feeding bin part 801 and a transfer bin part 802, wherein the feeding bin part 801 is used to receive materials; and the transfer bin part 802 is used to discharge materials.

[0093] The transfer bin section 802 includes: a horizontal cylindrical shell 8021, a rotating shaft mechanism 8022, and a third motor 8023. The cylindrical shell 8021 has an inlet and an outlet, the inlet is located at the top and connected to the feed bin section 801, and the outlet is located at the bottom for unloading. The rotating shaft mechanism 8022 is arranged in the cylindrical shell 8021. The rotating shaft mechanism 8022 includes: a central axis 80221, and three blades 80222 evenly distributed on the central axis, and the width of the blades 80222 is equivalent to the inner diameter of the cylindrical shell 8021. The cylindrical shell 8022 includes two arc-shaped shells of axially symmetrical structure, and the angle of the arc-shaped shell is ≥120°.

[0094] The third motor 8023 is installed at the end of the cylindrical housing 8021 and connected to the central axis 80221 of the rotating shaft mechanism 8022 in the cylindrical housing 8021. The third motor 8023 drives the rotating shaft mechanism 8022 to rotate for unloading, and the transfer bin 802 always remains in a closed state to prevent hot air leakage.

[0095] Working process: the material enters the starting end of the first-layer conveying platform 100 from the feed inlet 3051. During the conveying process to the end, the first-layer rolling platform 200 rolls the material perpendicularly to the conveying direction and rolls alternately in the forward and reverse directions. The material falls from the end of the first-layer conveying platform 100 to the starting end of the second-layer conveying platform 100. During the conveying process to the end, the second-layer rolling platform 200 rolls the material perpendicularly to the conveying direction and rolls alternately in the forward and reverse directions. The material falls from the end of the second-layer conveying platform 100 to the starting end of the third-layer conveying platform 100... until it is discharged from the discharging mechanism 800 at the bottom layer.

[0096] The rolling platform 200 of the present invention can be connected to a heating source and made of a heating plate, or conduct heat through a heating plate, so that the rolling platform 200 can obtain a higher temperature. Through direct contact between the rolling platform 200 and the material during the rolling process, heat is transferred to the material, thereby improving the evaporation efficiency.

[0097] The rolling platform 200 of the present invention rolls in the forward and reverse directions at the same time, so that the material can be more evenly distributed on the conveying platform 100 composed of the grid bar assembly, and the material is rolled more comprehensively, the evaporation area is increased, and the drying efficiency is improved. The hollow rolling platform 200 can carry and transfer a part of the material, and increase the evaporation area of ​​the material.

[0098] The present invention can be stacked in multiple levels by means of modules, and the processing capacity can be increased by using the height. It does not occupy more floor area and the number of drying machines. It does not need to configure an independent drying room, and the platform module forms a drying room by itself. It is convenient to install and disassemble, and the material transmission path is simpler, more efficient and faster, and the energy required for material transportation and lifting can be saved.

[0099] The above description is only a preferred embodiment of the present invention and is not intended to limit the protection scope of the present invention. Any modification, equivalent replacement and improvement made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A material rolling and conveying module, comprising: The conveying platform composed of the bar assembly, the rolling device arranged above the conveying platform, and the supporting frame are characterized in that: The conveying platform formed by the grid bar assembly is connected to a first driving mechanism, and the first driving mechanism is connected to a first motor; the first motor drives the first driving mechanism to drive the conveying platform to perform reciprocating synchronous circular motion, carrying and pushing the material forward; The rolling device comprises: a rolling platform and a second driving mechanism; the rolling platform is connected to the second driving mechanism, and the second driving mechanism is connected to a second motor; the second motor drives the second driving mechanism to drive the rolling platform to perform a reciprocating synchronous circular motion perpendicular to the propulsion direction of the material, so as to roll and scrape the material; the second motor rotates forward and reverse alternately, and the forward and reverse times are equal; The support frame is used to support the first driving mechanism and the second driving mechanism; The first driving mechanism comprises: a set of first driving shafts, a set of first gear sets, and at least one set of guide bars; The first gear set comprises a plurality of first drive shaft gears and first transmission gears meshed in sequence; Each of the first driving shafts is fixedly mounted on one of the first driving shaft gears; Each group of the first driving shafts is also passed through a group of the guide bars of the same group through a group of the first eccentric devices; each group of the guide bars is fixedly connected to the corresponding bar assembly of the same group of the conveying platform; Any first gear in the group of first gear sets is connected to the first motor, the first motor drives the first gear, and the first gear drives all the first drive shaft gears to move at the same speed and in the same direction, thereby driving the conveying platform formed by the grid bar assembly to perform reciprocating synchronous circular motion; The first motor and the first gear set are mounted on a side surface of the support frame parallel to the moving direction of the conveying platform; The second driving mechanism includes: a set of second driving shafts, a set of second gear sets, and a set of rolling guide plates; The rolling platform is connected to the set of rolling guide plates; The second gear set comprises a plurality of second drive shaft gears and second transmission gears meshing in sequence; Each of the second driving shafts is fixedly mounted on a second driving shaft gear; Each of the second driving shafts is also passed through a set of second eccentric devices and is disposed on the set of rolling guide plates; Any second gear in the set of second gear groups is connected to the second motor, the second motor drives the second gear, and the second gear drives all the second drive shaft gears to move at the same speed and in the same direction, thereby driving the rolling platform to perform reciprocating synchronous circular motion; The second motor and the second gear set are mounted on a side of the support frame that is perpendicular to the moving direction of the conveying platform; A conveying platform consisting of one or more layers of grid bar assemblies is additionally provided above, below, or above and below the conveying platform consisting of the grid bar assemblies; The corresponding guide bars of the additional conveying platform are driven by a group of auxiliary drive shaft gears meshing with the first drive shaft gear, generating a reciprocating synchronous circular motion opposite to the movement direction of the original conveying platform, so that the material on the upper conveying platform falls to the beginning of the next conveying platform when it reaches the end.

2. A material rolling and conveying module according to claim 1, characterized in that: A rolling platform is also provided above the additional conveying platform; The rolling platform is connected to the group of rolling guide plates and is driven by the second motor to perform reciprocating synchronous circular motion perpendicular to the moving direction of the conveying platform.

3. A material rolling and conveying module as claimed in claim 2, characterized in that: The rolling platform below the second layer is a hollow plate to prevent the accumulation of materials that fall from the ventilation gaps of the conveying platform on the upper layer.

4. A material rolling and conveying module according to any one of claims 1 to 3, characterized in that: The rolling platform is made of a heating plate, or conducts heat through a heating plate.

5. A drying chamber, characterized in that: It comprises a material crushing and conveying module as claimed in any one of claims 1 to 4, the number of which is one or a plurality of which are stacked; The support frame of each material rolling and conveying module is a rectangular frame surrounding the conveying platform and the rolling platform, the rectangular frame has an inner wall and an outer wall, and a heat insulation material is filled in the middle to form a heat insulation layer; the rectangular frame is provided with doors and windows that can be opened and closed for easy observation and operation; The plurality of material crushing and conveying modules stacked in layers form a steamer-type structure, and the support frame of each material crushing and conveying module is locked and fixedly connected up and down; An upper heat insulation layer is provided above the support frame of the material rolling and conveying module located at the uppermost layer; A lower heat insulation layer is provided at the bottom of the support frame of the material crushing and conveying module located at the bottom layer; The upper heat insulation layer, the lower heat insulation layer, and the support frame of each layer form a closed box, enclosing all the conveying platforms and the rolling platforms; The upper heat insulation layer is provided with a feeding mechanism, and the material to be dried enters the starting end of the conveying platform of the first layer from the feeding mechanism; The support frame of the material rolling and conveying module at the bottom layer is provided with an air inlet and a discharging mechanism; the air inlet is used to connect to a heat source; the discharging mechanism is used to discharge the dried material; A return air outlet is provided on the support frame of the material crushing and conveying module located at the uppermost layer.

6. A drying chamber as claimed in claim 5, characterized in that: The discharging mechanism comprises: a feeding bin part and a transfer bin part; The feed bin is used to receive materials; The transfer bin part is used to discharge materials.

7. A drying chamber according to claim 6, characterized in that: The transfer bin part includes: a horizontal cylindrical shell, a rotating shaft mechanism, and a third motor; The cylindrical housing has an inlet and an outlet, the inlet is located at the top and connected to the feed bin, and the outlet is located at the bottom for unloading; The rotating shaft mechanism is arranged in a cylindrical housing; The rotating shaft mechanism comprises: a central shaft, and n blades evenly distributed on the central shaft, wherein n≥3; the width of the blades is equivalent to the inner diameter of the cylindrical shell; The cylindrical shell comprises two arc-shaped shells of axially symmetrical structure, and the angle of the arc-shaped shells is ≥360˚ / n; The third motor is mounted at the end of the cylindrical housing and connected to the central axis of the rotating shaft mechanism in the cylindrical housing; The third motor drives the rotating shaft mechanism to rotate to unload materials, and the transfer bin portion always remains in a closed state to prevent hot air leakage.

Images