Drying device

Abstract

The utility model discloses a drying device which comprises at least two drying boxes arranged in series, each drying box is provided with a feeding end and a discharging end, the feeding end of the first drying box is used for loading materials to be dried, and the discharging end of the last drying box is used for discharging dried materials. The feeding ends of the other drying boxes can communicate with the discharging end of the previous drying box, so that to-be-dried materials can sequentially pass through the multiple drying boxes and are dried for multiple times; and in the arrangement direction from the first drying box to the last drying box, the drying temperature of the drying boxes changes. Therefore, by means of the drying box structure designed in a multi-stage series connection mode, efficient drying treatment on the to-be-dried materials can be achieved, the drying efficiency is improved, and the original quality of the to-be-dried materials is effectively protected.

Description

Technical Field

[0001] This utility model relates to the field of material drying technology, and more specifically, to a drying device. Background Technology

[0002] In industrial and agricultural production processes, drying materials is a crucial step. As a key piece of equipment for achieving this goal, the performance and efficiency of the drying oven directly impact product quality, production costs, and overall production efficiency.

[0003] Currently, most drying ovens have built-in drums, which dry the materials by rotating. Different drying ovens are selected based on different drying requirements, each with a different drying temperature. However, this single matching method results in less than ideal drying efficiency. Utility Model Content

[0004] The purpose of this invention is to provide a new technical solution for a drying device.

[0005] According to one aspect of the present invention, a drying apparatus is provided, comprising:

[0006] At least two drying chambers are arranged in series. Each drying chamber has a feed end and a discharge end. The feed end of the first drying chamber is used to load the material to be dried, and the discharge end of the last drying chamber is used to discharge the dried material. The feed ends of the remaining drying chambers can be connected to the discharge end of the previous drying chamber, so that the material to be dried can pass through multiple drying chambers in sequence and be dried multiple times.

[0007] Furthermore, the drying temperature of the drying ovens changes along the arrangement direction from the first drying oven to the last drying oven.

[0008] Optionally, the drying temperature of the drying ovens gradually decreases along the arrangement direction from the first drying oven to the last drying oven.

[0009] Optionally, multiple drying boxes are stacked vertically, with the discharge end of the upper drying box connected to the feed end of the adjacent lower drying box.

[0010] Optionally, multiple drying ovens are arranged side by side in a horizontal direction.

[0011] Optionally, it also includes a feeding section, one end of which is connected to the feed end of the drying chamber, and the other end of which is connected to the discharge end of the previous drying chamber. The feeding section is used to transfer the material to be dried.

[0012] Optionally, one end of the feeding section is detachably connected to the feeding end of the drying chamber, and the other end of the feeding section is detachably connected to the discharging end of the previous drying chamber.

[0013] Optionally, the number of drying boxes is not less than three, some of the drying boxes are stacked vertically, and the other part of the drying boxes are arranged side by side horizontally.

[0014] Optionally, each of the feed ends is provided with a first sealing plate, which is movably connected to the feed end of the drying chamber and can close or open the feed inlet;

[0015] Each of the discharge ends is provided with a second sealing plate, which is movably connected to the discharge end of the drying box and can close or open the discharge port.

[0016] Optionally, it also includes at least two drying tubes, each of which contains drying gas, each of which has an inlet and an outlet, each of which is connected to an inlet to transmit the drying gas to the drying chamber, and the outlet is used to discharge humid gas.

[0017] Optionally, it also includes an adjustment unit and a first detection unit connected to a signal connection. The adjustment unit and the first detection unit are disposed inside the drying tube. The first detection unit is used to detect the temperature information or air volume information of the drying tube. The adjustment unit can adjust at least one of the flow rate and velocity of the drying gas based on the information.

[0018] Optionally, it also includes a second detection unit, which is located inside the drying oven and is used to detect the drying temperature of the drying oven or the mass difference of the material to be dried before and after drying.

[0019] And / or, at least part of the drying chamber is provided with a heating element, which allows the material to be dried to be dried within the drying chamber.

[0020] Optionally, each of the drying ovens includes a box body and a roller portion disposed on the box body. The roller portion includes a roller shaft, a roller body, and a roller cover. The roller cover and the roller body are respectively sleeved on the roller shaft. The roller body has a first opening, and the roller body and the box body are connected through the first opening.

[0021] The roller cover can rotate along the roller shaft and close or open the first opening. When the roller cover closes the first opening, the roller cover and the roller body form a transmission connection. When the roller cover opens the first opening, the roller cover and the roller body are disengaged from the transmission connection.

[0022] One technical advantage of this utility model is:

[0023] The drying device includes at least two drying chambers arranged in series. Each drying chamber has a feed end and a discharge end. The feed end of the first drying chamber is used to load the material to be dried, and the discharge end of the last drying chamber is used to discharge the dried material. The feed ends of the remaining drying chambers can be connected to the discharge ends of the previous drying chambers, so that the material to be dried can pass through multiple drying chambers in sequence and be dried multiple times. Furthermore, the drying temperature of the drying chambers changes along the arrangement direction from the first drying chamber to the last drying chamber.

[0024] Therefore, the multi-stage series-connected drying chamber structure enables highly efficient drying of materials, improving drying efficiency and effectively preserving the original quality of the materials. Compared to traditional single-stage drying, this multi-stage drying method can more effectively remove moisture from the materials, especially when processing materials with high humidity or those that are difficult to dry.

[0025] Other features and advantages of the present invention will become clear from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. Attached Figure Description

[0026] The accompanying drawings, which form part of this specification, illustrate embodiments of the present invention and, together with the specification, serve to explain the principles of the present invention.

[0027] Figure 1 This is a schematic diagram of a drying oven according to an embodiment of the present utility model;

[0028] Figure 2 This is a partial schematic diagram of a drying oven according to an embodiment of the present utility model;

[0029] Figure 3 This is another partial schematic diagram of a drying oven according to an embodiment of the present utility model;

[0030] Figure 4 This is a schematic diagram of a roller shaft according to an embodiment of the present utility model;

[0031] Figure 5 This is a schematic diagram of a roller section according to an embodiment of the present utility model;

[0032] Figure 6 This is another schematic diagram of a roller section according to an embodiment of the present utility model;

[0033] Figure 7 This is a partial cross-sectional view of a roller portion according to an embodiment of the present utility model;

[0034] Figure 8 This is another schematic diagram of a roller section according to an embodiment of the present utility model;

[0035] Figure 9 This is a schematic diagram of a first drying oven according to an embodiment of the present utility model;

[0036] Figure 10 This is a schematic diagram of a second drying oven according to an embodiment of the present invention;

[0037] Figure 11 This is a schematic diagram of a first drying tube according to an embodiment of the present utility model;

[0038] Figure 12 This is a schematic diagram of a drying device according to an embodiment of the present invention;

[0039] Figure 13 This is a schematic diagram of another drying device according to an embodiment of the present invention.

[0040] Explanation of reference numerals in the attached figures:

[0041] 1. First drying assembly; 11. First drying pipe; 111. Pipe body; 1111. Inner pipe; 1112. Outer shell; 1113. Insulation layer; 112. Heating element; 113. Heat dissipation element; 114. Temperature sensor; 12. First drying chamber; 121. Chamber body; 1213. First positioning element; 122. Roller section; 1221. Roller body; 12211. First opening; 12212. Protrusion; 1222. Roller sliding cover; 12221. Sliding... 12222, Cover plate; 12223, Sliding cover support; 12234, Roller shaft; 12235, Fourth opening; 12236, Air guide; 12237, Material guide; 1228, Transmission component; 12249, Gear; 12240, Dial; 12241, Pin; 1225, Reverse locking component; 1226, Elastic component; 1227, Support; 1228, Rotating sleeve; 123, First sealing plate; 124, First exhaust component; 13, First filter; 14, First fan;

[0042] 2. Hopper assembly; 21. First hopper; 22. Second hopper; 23. First weighing hopper; 24. Second weighing hopper;

[0043] 3. Drive unit;

[0044] 4. Second drying assembly; 41. Second drying pipe; 42. Second drying chamber; 421. Second exhaust component; 422. Second positioning component; 43. Second filter; 44. Second fan;

[0045] 5. Feeding section. Detailed Implementation

[0046] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that, unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the present invention.

[0047] The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the invention or its application or use.

[0048] Technologies and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such technologies and equipment should be considered part of the specification.

[0049] In all the examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values.

[0050] It should be noted that similar labels and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be discussed further in subsequent figures.

[0051] This invention provides a drying device suitable for drying various materials, such as granular, powdered, or lumpy materials in the food, chemical, and pharmaceutical industries.

[0052] like Figures 1 to 3 , Figure 12 and Figure 13 As shown, the drying device provided by this utility model includes:

[0053] At least two drying chambers are arranged in series. Each drying chamber has a feed end and a discharge end. The feed end of the first drying chamber is used to load the material to be dried, and the discharge end of the last drying chamber is used to discharge the dried material. The feed ends of the remaining drying chambers can be connected to the discharge end of the previous drying chamber, so that the material to be dried can pass through multiple drying chambers in sequence and be dried multiple times.

[0054] Furthermore, the drying temperature of the drying ovens changes along the arrangement direction from the first drying oven to the last drying oven.

[0055] Specifically, the drying device of this utility model includes at least two drying chambers, such as the first drying chamber 12 and the second drying chamber 42 shown in the figure, and may also include three, four or more drying chambers. These drying chambers are arranged in series, such as horizontally or vertically.

[0056] Each drying chamber is designed with a feed end and a discharge end, i.e., a feed port and a discharge port, to facilitate continuous input and output of materials.

[0057] like Figures 1 to 3 , Figure 12 and Figure 13 As shown, the first drying chamber is equipped with an automatic feeding device at its inlet end for loading the material to be dried. The drying temperature of this chamber is typically set to the high-temperature zone of the entire drying process to quickly and efficiently remove a large amount of moisture from the material.

[0058] The final drying chamber, serving as the end point of the drying process, has a material unloading structure connected to its discharge end, such as a sliding door, gate, or automatic unloading device. This drying chamber typically operates at a lower temperature to further remove residual moisture while simultaneously controlling the material temperature to the required level.

[0059] The remaining intermediate drying chambers are located between the first and last drying chambers, and their number can be adjusted according to actual drying needs. The feed end of each intermediate drying chamber can be connected to the discharge end of the previous drying chamber via a pipe or conveyor belt to ensure that the material to be dried is transferred to the next drying stage, thereby enabling multiple drying of the material and meeting the complex drying requirements of the material.

[0060] Therefore, the multi-stage series-connected drying chamber structure enables highly efficient drying of materials, improving drying efficiency and effectively protecting the original quality of the materials. Furthermore, the application of intelligent control and energy-saving technologies further enhances the economic and environmental performance of the drying equipment.

[0061] Furthermore, this invention features a design that eliminates the need for two drying chambers connected in series, allowing the material to be dried to pass through multiple chambers sequentially for repeated drying. Compared to traditional single-stage drying, this multi-stage drying method can more effectively remove moisture from the material, especially when processing materials with high humidity or those that are difficult to dry.

[0062] Along the arrangement direction from the first drying oven to the last drying oven, the drying temperature of the drying oven can be set to gradually decrease, gradually increase, decrease first and then increase, or increase first and then decrease, thus adapting to different drying needs.

[0063] Temperature sensors can be installed in each drying chamber. These sensors can monitor and feed back temperature information to the central control system in real time, so that the output of the heating elements can be automatically adjusted according to the preset program, thereby achieving precise control of the drying temperature inside the drying chamber.

[0064] Furthermore, the moisture generated during the drying process can be discharged through the exhaust system, and a dehumidification device or condensation recovery system can be installed to reduce energy consumption and meet environmental protection requirements. Moreover, waste heat recovery technology can be incorporated to recover and reuse the heat energy in the moisture discharged from the drying chamber, thereby improving the overall energy efficiency of the drying equipment.

[0065] Optionally, the drying temperature of the drying ovens gradually decreases along the arrangement direction from the first drying oven to the last drying oven.

[0066] Specifically, the drying chambers are arranged in series from the first to the last, which is also the direction of material transfer. The drying temperature of each chamber gradually decreases.

[0067] With this setup, in the first drying chamber, the high-temperature drying gas rapidly increases the evaporation rate of water molecules inside the material and effectively removes most of the free water, thus achieving rapid and efficient drying of the material. As the material enters the subsequent intermediate drying chambers, the drying temperature gradually decreases, which helps to slowly release the bound water inside the material and also prevents the material from deforming, cracking, or even deteriorating in quality due to rapid temperature changes. Finally, the material undergoes further removal of residual moisture in the last drying chamber, while the material temperature is controlled to the required level.

[0068] This gradually decreasing temperature gradient design helps the material to be dried to be dried at appropriate temperatures at different stages, avoiding problems such as surface hardening and difficulty in removing internal moisture that can occur with high-temperature rapid drying, thus improving drying quality. Furthermore, multi-stage gentle drying can better preserve the nutrients, aroma, and color of the material, making it suitable for industries such as food and pharmaceuticals that require high drying quality.

[0069] Optionally, multiple drying boxes are stacked vertically, with the discharge end of the upper drying box connected to the feed end of the adjacent lower drying box.

[0070] like Figure 13 As shown, stacking multiple drying boxes vertically saves horizontal space in the drying unit, making the entire unit more compact. This is especially important for production environments with limited space, maximizing the use of existing site resources and reducing production costs.

[0071] In a vertically stacked layout, the material to be dried can be transferred vertically between two connected drying chambers by gravity or a built-in conveying mechanism. Compared to horizontal conveying, vertical transport is more direct in its path, reducing the complexity and time cost of transferring the material to be dried, and also saving driving force.

[0072] Alternatively, the discharge port of the upper drying chamber can be positioned opposite the inlet of the adjacent lower drying chamber, allowing direct connection between the discharge port of the upper drying chamber and the inlet of the adjacent lower drying chamber; or a connecting pipe can be installed to connect the discharge port of the upper drying chamber to the inlet of the adjacent lower drying chamber.

[0073] Optionally, multiple drying ovens are arranged side by side in a horizontal direction.

[0074] like Figure 12 As shown, multiple drying ovens arranged horizontally side by side allow for flexible configuration based on the actual conditions of the production site. Whether in a spacious or space-constrained environment, the number and spacing of the drying ovens can be adjusted to ensure optimal space utilization.

[0075] Multiple horizontally arranged drying chambers can form a continuous material handling line. The material to be dried enters from the first drying chamber, passes through multiple drying chambers in sequence for drying, and finally exits from the last drying chamber. This continuous production process helps improve drying efficiency and reduce the time cost of transferring materials to be dried. Furthermore, the drying unit can integrate various conveying systems, such as conveyor belts, vibrating feeders, or screw conveyors, to achieve automatic and continuous conveying of the material to be dried.

[0076] In addition, the horizontal layout of multiple drying chambers ensures that each chamber is within the operator's line of sight, facilitating daily observation and troubleshooting, as well as maintenance and upkeep.

[0077] Optionally, it also includes a feeding section 5, one end of which is connected to the feed end of the drying chamber, and the other end of which is connected to the discharge end of the previous drying chamber. The feeding section 5 is used to transfer the material to be dried.

[0078] like Figure 12 As shown, the feeding unit 5 includes, but is not limited to, conveyor belts and conveyors. The design of the feeding unit 5 allows the material to be dried to be transferred directly and continuously from the discharge end of the previous drying chamber to the feed end of the next drying chamber without interrupting the production process. This continuous and efficient material transfer method helps to improve drying efficiency and reduce time waste and energy consumption during the transfer of the material to be dried.

[0079] The feeding section 5 can be equipped with precise metering and control devices to ensure the accurate weight of the material to be dried each time it is transferred. This is especially important for industries that require strict control over material input and the drying process, such as food and pharmaceuticals, as it helps to ensure the quality and consistency of the final product.

[0080] In addition, the design of the feeding section 5 can be adjusted and optimized according to the characteristics and drying requirements of different materials to be dried. For example, for materials that are easy to stick to the wall or clog, special conveying mechanisms or surface treatments can be used to reduce friction and adhesion; for fragile or easily deformable materials to be dried, a gentler conveying method can be used.

[0081] Optionally, one end of the feeding section 5 is detachably connected to the feeding end of the drying chamber, and the other end of the feeding section 5 is detachably connected to the discharging end of the previous drying chamber.

[0082] Specifically, the feeding section 5 and the drying chamber can be connected by threads, snap-fit, etc. to form a detachable connection, so as to facilitate the installation and removal of the feeding section 5 and the drying chamber. This allows the feeding section 5 to be installed to expand the number of drying stages, or the feeding section 5 to be removed to reduce the number of drying stages, so as to meet the complex drying requirements of the materials to be dried.

[0083] Optionally, the number of drying boxes is not less than three, some of the drying boxes are stacked vertically, and the other part of the drying boxes are arranged side by side horizontally.

[0084] Specifically, the drying device can include three, four, or even more drying boxes to meet different drying needs. This can be achieved by stacking multiple drying boxes vertically in the front, followed by horizontally arranged drying boxes in the middle; or by stacking multiple drying boxes vertically in the front, horizontally arranged drying boxes in the middle, and vertically stacked drying boxes in the back, among other combinations.

[0085] Optionally, each of the feed ends is provided with a first sealing plate 123, which is movably connected to the feed end of the drying box and can close or open the feed port;

[0086] Each of the discharge ends is provided with a second sealing plate, which is movably connected to the discharge end of the drying box and can close or open the discharge port.

[0087] like Figure 2 and Figure 9 As shown, the first sealing plate 123 can be slidably or rotatably connected to the feed end of the drying chamber, i.e., the second opening, so that the first sealing plate 123 can open the second opening, i.e. the feed inlet, to load the material to be dried, or the first sealing plate 123 can close the second opening, i.e. the feed inlet, to reliably dry the material to be dried.

[0088] Similarly, a second sealing plate can be slidably or rotatably connected to the discharge end of the drying chamber, i.e., the third opening, so that the second sealing plate can open the third opening, i.e., the discharge port, to discharge the dried material, or the second sealing plate can close the third opening, i.e., the discharge port, to reliably dry the material to be dried. The sliding connection between the first sealing plate 123 and the second sealing plate can be achieved using a guide rail slider, and the rotatable connection can be achieved using a meshing gear set.

[0089] Optionally, it also includes at least two drying tubes, each of which contains drying gas, each of which has an inlet and an outlet, each of which is connected to an inlet to transmit the drying gas to the drying chamber, and the outlet is used to discharge humid gas.

[0090] like Figure 12 and Figure 13 As shown, a drying gas flows inside the first drying pipe 11. This drying gas includes, but is not limited to, ambient air, heated air, and inert gas, providing the heat source or inert environment required for drying. One end of the first drying pipe 11 is connected to a heat source such as a heater or fan, and the other end is connected to the first drying chamber 12, ensuring that the drying gas can be smoothly transferred into the first drying chamber 12. The connection between the first drying pipe 11 and the first drying chamber 12 allows the first drying assembly 1, which includes both the first drying pipe 11 and the first drying chamber 12, to adapt to long-distance drying needs and enhances the adaptability of the drying device.

[0091] Taking a two-stage drying process as an example, the first drying tube 11 and the first drying chamber 12 form the first drying assembly 1, and the second drying tube 41 and the second drying chamber 42 form the second drying assembly 4. The material to be dried first undergoes a first drying process in the first drying chamber 12, and then undergoes a second drying process in the second drying chamber 42. This enhances the drying effect and can adapt to different drying requirements. Specifically, the first drying gas in the first drying tube 11 can be set to high-temperature air, and the second drying gas in the second drying tube 41 can be set to room-temperature air, allowing the material to be dried to be rapidly dried in the first drying chamber 12 and then cooled and dehydrated in the second drying chamber 42.

[0092] It is worth noting that, such as Figure 10 As shown, the second drying chamber 42 has a similar structure to the first drying chamber 12, and the second drying tube 41 has a similar structure to the first drying tube 11, which will not be described in detail here.

[0093] like Figure 1 , Figure 2 , Figure 9 , Figure 12 and Figure 13As shown, a first exhaust component 124 can be provided at the air outlet. The first exhaust component 124 can connect the interior of the drying chamber with the outside, allowing the humid gas inside the drying chamber to be discharged to the outside through the first exhaust component 124, thereby ensuring that the gas inside the drying chamber is always dry and thus guaranteeing its drying effect. The first exhaust component 124 includes, but is not limited to, an exhaust port and an exhaust pipe.

[0094] Optionally, the drying tube includes a plurality of pipes connected in sequence, each pipe including a pipe body 111, a heating element 112 and a heat dissipation element 113, the heating element 112 and the heat dissipation element 113 being disposed inside the pipe body 111, and the heat dissipation element 113 being disposed toward the heating element 112.

[0095] like Figure 1 and Figure 11 As shown, the drying pipe system comprises multiple sequentially connected pipes, which work together to transport the drying gas and can accommodate different transport distances. Each pipe can independently perform heating and cooling operations, enabling more uniform and efficient drying of the material.

[0096] like Figure 11 As shown, the heating element 112 can heat the dry gas flowing through the pipe, while the heat dissipation element 113 can effectively and evenly distribute the heated dry gas, ensuring that the temperature of the dry gas in each stage of the pipe remains uniform, thereby ensuring the temperature uniformity and consistency of the dry gas output from the drying pipe.

[0097] The heating element 112 includes, but is not limited to, a heater and a heating wire, while the heat dissipation element 113 includes, but is not limited to, a heat sink and a fan. The heating element 112 and the heat dissipation element 113 are preferably made of high-temperature resistant and corrosion-resistant materials to ensure the stability and reliability of the heating element 112 and the heat dissipation element 113 during long-term use.

[0098] In one embodiment, the heating temperature of each stage of the pipeline can be independently controlled. That is, a controller is installed in each stage of the pipeline, which can adjust the heating temperature of the heating element 112 and / or the heat dissipation effect of the heat sink 113 according to actual needs, thereby achieving flexible control of the drying temperature. This flexible temperature control method allows the drying device to adapt to the needs of different materials to be dried and drying processes, improving the adaptability and flexibility of the drying device.

[0099] In addition, by precisely controlling the heating and heat dissipation process of each stage of the pipeline, it can be ensured that the material to be dried can achieve the ideal drying effect during the drying process, avoiding quality problems caused by excessively high or low temperatures.

[0100] Optionally, the pipe body 111 is also provided with a temperature sensor 114. The temperature sensor 114 is used to detect the temperature information inside the pipe and transmit the temperature information to the controller so that the controller can control the heating element 112 and the heat dissipation element 113 to meet different drying requirements.

[0101] Optionally, the pipe body 111 includes an inner pipe 1111, an outer shell 1112, and an insulation layer 1113, wherein the insulation layer 1113 is disposed between the inner pipe 1111 and the outer shell 1112.

[0102] Specifically, the three-layer structure of the pipe body 111 strengthens the pipe body 111 itself and prevents dry gas leakage due to pipe body 111 rupture; on the other hand, the multi-layer structure also enhances the heat insulation capacity of the pipe body 111, so that the flowing dry gas can be stably maintained at the predetermined temperature.

[0103] like Figure 11 As shown, the insulation layer 1113 is sandwiched between the inner tube 1111 and the outer shell 1112, which effectively reduces heat loss and ensures that the heat generated by the heating element 112 can be transferred to the drying gas flowing through the pipe to the maximum extent, thereby improving heating efficiency. This efficient heat utilization method not only accelerates the drying speed of the material to be dried, but also significantly reduces energy consumption, meeting the requirements of modern industry for energy conservation and emission reduction.

[0104] The inner tube 1111 can be a stainless steel tube, the outer shell 1112 can be a metal shell, and the insulation layer 1113 can be formed using insulation materials such as glass wool and polyurethane.

[0105] Furthermore, the insulation layer 1113 can also isolate the external temperature fluctuations from affecting the temperature of the inner tube 1111, making the temperature inside the pipe more stable and facilitating precise control of the drying temperature. This stable temperature control environment ensures that the material to be dried is heated evenly during the drying process, avoiding quality problems caused by temperature fluctuations.

[0106] Furthermore, the insulation layer 1113 reduces the temperature difference between the inner tube 1111 and the outer shell 1112, lowering the impact of thermal stress on the pipe material and thus extending the service life of the drying pipe. In addition, the insulation layer 1113 protects the inner tube 1111 from external corrosion and mechanical damage, further improving the reliability and durability of the drying pipe.

[0107] Optionally, it also includes a first filter 13 and a first fan 14. One end of the first fan 14 is connected to the first filter 13, and the other end of the first fan 14 is connected to the first drying pipe 11, so that the room temperature gas can be filtered by the first filter 13 and heated by the first fan 14 to obtain a high temperature first dry gas, which is then transported to the first drying pipe 11.

[0108] Optionally, it also includes a second filter 43 and a second fan 44. One end of the second fan 44 is connected to the second filter 43, and the other end of the second fan 44 is connected to the second drying pipe 41, so that the room temperature gas can be filtered by the second filter 43 and dried by the second fan 44 to obtain a room temperature dry gas, which is then transported to the second drying pipe 41.

[0109] Optionally, it also includes an adjustment unit and a first detection unit connected to a signal connection. The adjustment unit and the first detection unit are disposed inside the drying tube. The first detection unit is used to detect the temperature information or air volume information of the drying tube. The adjustment unit can adjust at least one of the flow rate and velocity of the drying gas based on the information.

[0110] Specifically, the first detection unit can be a temperature sensor, which can detect the drying temperature inside the drying tube in real time so that the controller can adjust the unit to adapt to different drying requirements. Alternatively, the first detection unit can be an airflow sensor, which can detect the airflow inside the drying tube in real time so that the controller can adjust the unit to adapt to different drying requirements.

[0111] Therefore, based on the real-time and accurate temperature and / or airflow information detected by the first detection unit within the drying tube, the flow rate and / or velocity of the drying gas can be controlled by a controller, such as a valve, thereby meeting different drying requirements. Thus, the drying device provided by this invention can dynamically adjust the flow rate and velocity of the drying gas according to the characteristics and drying requirements of different materials to be dried, making the drying process more efficient and energy-saving, helping to reduce energy consumption and lower production costs.

[0112] Optionally, it also includes a second detection unit, which is located inside the drying oven and is used to detect the drying temperature of the drying oven or the mass difference of the material to be dried before and after drying.

[0113] And / or, at least part of the drying chamber is equipped with a heating element, which allows the material to be dried to be dried within the drying chamber, thereby quickly removing moisture from the material and improving the drying efficiency of the drying chamber. The heating element may include one or more heating tubes, facilitating adjustment of the drying temperature within the chamber body 121 via a controller.

[0114] Specifically, the second detection unit can be a temperature sensor, which can detect the drying temperature inside the drying chamber in real time so that the controller can adjust it to meet different drying requirements. Alternatively, the second detection unit can consist of two mass sensors, which detect the mass of the material before and after drying, thereby determining the moisture content of the material.

[0115] Alternatively, heating elements can be installed in some drying chambers while the rest are left unheated, thus facilitating the creation of a temperature gradient. Conversely, heating elements can be installed in all drying chambers, with the heating temperatures designed to create a temperature gradient.

[0116] The internal structure of a single drying oven will be described below as an example.

[0117] like Figures 1 to 3 as well as Figure 9 As shown, each of the drying ovens includes:

[0118] The box body 121 and the roller portion 122 disposed on the box body 121, the roller portion 122 includes a roller shaft 1223, a roller body 1221 and a roller cover 1222, the roller cover 1222 and the roller body 1221 are respectively sleeved on the roller shaft 1223, the roller body 1221 has a first opening 12211, and the roller body 1221 and the box body 121 are connected through the first opening 12211;

[0119] The roller cover 1222 can rotate along the roller shaft 1223 and close or open the first opening 12211. When the roller cover 1222 closes the first opening 12211, the roller cover 1222 and the roller body 1221 form a transmission connection. When the roller cover 1222 opens the first opening 12211, the roller cover 1222 and the roller body 1221 are disengaged from the transmission connection.

[0120] like Figure 1 and Figure 9 As shown, the drying oven includes a main body 121 and a drum section 122. The main body 121 constitutes the main structure of the drying oven, and its internal space is used to accommodate the drum section 122 and other related structures. The material of the main body 121 can have good heat insulation performance and a certain degree of corrosion resistance, which can ensure drying efficiency and safety.

[0121] like Figure 6As shown, the drum section 122 includes a drum shaft 1223, a drum body 1221, and a drum sliding cover 1222. The drum body 1221 is typically designed as a cylinder or similar shape, with an internal space for loading the material to be dried. The sides and bottom of the drum body 1221 are provided with ventilation holes or ventilation layers to allow the drying gas inside the drum body 121 to evenly penetrate the material and achieve efficient drying. One end of the drum body 1221 has a first opening 12211 for material to enter and exit.

[0122] like Figure 6 As shown, the roller cover 1222 and the roller body 1221 are respectively sleeved on the roller shaft 1223. The roller cover 1222 can rotate relative to the roller body 1221 along the roller shaft 1223 and open or close the first opening 12211 on the roller body 1221, thereby controlling the communication state between the roller body 1221 and the box body 121.

[0123] Specifically, when the drum cover 1222 rotates forward to close the first opening 12211, the drum cover 1222 and the drum body 1221 form a transmission connection. That is, a driving force transmission path is formed between the drum cover 1222 and the drum body 1221. At this time, driven by the drive structure, the drum cover 1222 can drive the drum body 1221 to rotate together, so that the material to be dried inside the drum body 1221 can fully and evenly contact the drying gas, thereby achieving a better drying effect.

[0124] Furthermore, the rotation of the drum body 1221 not only promotes the thorough mixing of the drying gas and the material to be dried, but also increases the gas renewal rate on the surface of the material to be dried, which helps to remove moisture or volatile components from the material to be dried and improves the drying efficiency.

[0125] When the roller cover 1222 rotates in the reverse direction to open the first opening 12211, the roller cover 1222 disengages from the roller body 1221. That is, a driving force transmission path cannot be formed between the roller cover 1222 and the roller body 1221, meaning the roller body 1221 cannot rotate. At this time, the roller body 1221 is connected to the box body 121 through the first opening 12211, allowing for the loading of materials to be dried or the unloading of dried materials. This facilitates the subsequent drying process, speeds up the drying cycle, and improves drying efficiency.

[0126] Therefore, by rotating the roller cover 1222, the first opening 12211 can be closed or opened, thereby adjusting the communication state between the roller body 1221 and the box body 121. This enables reliable drying and convenient loading and unloading of materials, improving the flexibility and efficiency of the drying operation. This design not only facilitates the loading and unloading of materials but also allows for continuous material processing without interrupting the drying process. Furthermore, it ensures a reliable seal and convenient opening of the first opening 12211, preventing gas leakage and material contamination during the drying process.

[0127] Furthermore, when the roller cover 1222 closes the first opening 12211, the roller cover 1222 and the roller body 1221 form a transmission connection. At this time, the roller body 1221 can rotate together with the roller cover 1222 without the need for a separate drive source, saving layout costs and reducing the space occupied inside the drying oven, which facilitates the miniaturization of the drying oven.

[0128] In one embodiment, a stirring component, such as a rotating blade or a stirring shaft, can be added inside the drum body 1221 to improve the uniformity and drying efficiency of the material to be dried during the drying process.

[0129] In another embodiment, a temperature monitoring device and a control device can be added inside the box body 121 to monitor the temperature inside the box body 121 in real time and automatically adjust the heating power as needed to maintain a constant drying temperature, thereby meeting the drying requirements of different materials to be dried.

[0130] In another embodiment, a sealing strip or sealing gasket may be added between the roller cover 1222 and the roller body 1221 to further improve the sealing performance of the first opening 12211.

[0131] In the drying oven of this utility model, the drying gas inside the oven body 121 can directly contact the material to be dried through the air-permeable structure or pores of the roller body 1221; or the drying gas can be directly connected to the central shaft of the roller body 1221, so that the drying gas is transmitted from the central shaft of the roller body 1221 to the material to be dried, both of which can achieve rapid and uniform drying.

[0132] Optionally, it also includes a drive unit 3, and the roller unit 122 further includes a transmission member 1224, one end of the transmission member 1224 is connected to the drive end of the drive unit 3, and the other end of the transmission member 1224 is connected to the roller cover 1222;

[0133] Driven by the drive unit 3, the transmission member 1224 can drive the roller cover 1222 to rotate in both directions.

[0134] Specifically, the drive unit 3 includes a drive motor, a chain and sprocket, and a drive gear, which transmits the driving force of the drive motor to the drive gear through the chain and sprocket. The drive gear is connected to the transmission component 1224 to ensure reliable transmission of driving force between the drive unit 3 and the transmission component 1224. Alternatively, the drive unit 3 may also include a drive motor and a transmission gear set, which also enables reliable transmission of driving force.

[0135] Typically, the drive unit 3 is located on the outside of the box body 121. For example, the drive unit 3 can be located on the outer wall of the box body 121. This facilitates the reliable transmission of driving force while preventing the high temperature inside the box body 121 from affecting the normal operation of the drive unit 3. It also reduces the space occupied inside the box body 121, which is conducive to the miniaturization of the drying oven.

[0136] like Figure 6 and Figure 8 As shown, the transmission component 1224 may include a gear 12241, a dial 12242, and a pin 12243. The gear 12241 is connected to the drive end of the drive unit 3 so that the driving force of the drive unit 3 can be transmitted to the roller cover 1222 through the gear 12241, the dial 12242, and the pin 12243, thereby driving the roller cover 1222 to rotate.

[0137] Specifically, under the forward drive of the drive unit 3, the drive unit 3 can drive the drum cover 1222 to rotate forward to close the first opening 12211 through the gear 12241, the dial 12242 and the pin 12243. At this time, the material to be dried and the drying gas in the drum body 1221 can be fully mixed.

[0138] Under the reverse drive of the drive unit 3, the drive unit 3 can drive the roller cover 1222 to rotate in the opposite direction to open the first opening 12211 through the gear 12241, the dial 12242 and the pin 12243. At this time, the roller body 1221 and the box body 121 are connected through the first opening 12211, and the material to be dried or the dried material can be loaded through the first opening 12211.

[0139] The forward drive and reverse drive of the drive unit 3 correspond to the forward and reverse rotation of the drive motor. Under the forward drive of the drive unit 3, the roller cover 1222 can rotate in the forward direction; under the reverse drive of the drive unit 3, the roller cover 1222 can rotate in the reverse direction.

[0140] Thus, the introduction of the drive unit 3 and the transmission component 1224 enables automated control of the opening and closing operation of the drum sliding cover 1222, eliminating the need for manual operation, reducing labor intensity, and improving drying efficiency. Automated control also makes the opening and closing operation of the drum sliding cover 1222 more convenient, avoiding the risk of misoperation that may occur with manual operation and improving the safety of the drying oven.

[0141] Optionally, the roller section 122 further includes a reversing locking member 1225, which is disposed on the roller shaft 1223 and is used to control the unidirectional rotation of the roller body 1221.

[0142] like Figure 6 and Figure 7 As shown, the reversing locking component 1225 can be a one-way rotating bearing, a ratchet and pawl mechanism, a wedge-type one-way clutch, or other one-way rotating structures. It can ensure that the drum body 1221 can only rotate in a predetermined single rotation direction during operation, avoiding drying chamber malfunctions or safety accidents caused by accidental reversal. It can also prevent the drum body 1221 from shaking or shifting, ensuring the stability of the drum body 1221 during the drying process, thereby ensuring the uniform distribution and sufficient drying of the material to be dried inside the drum body 1221.

[0143] The reverse locking member 1225 prevents the roller body 1221 from rotating in the opposite direction to the predetermined single rotation direction. That is, when the roller cover 1222 rotates in the opposite direction under the drive of the drive unit 3, the roller body 1221 will not rotate in the opposite direction, thereby facilitating the opening of the first opening 12211.

[0144] According to the actual design, the roller shaft 1223 can be set to rotate or not rotate, and the reverse locking member 1225 is connected to the roller body 1221 through the rotating sleeve 1228, so that the roller body 1221 can only rotate in a predetermined single rotation direction and will not rotate in the opposite direction.

[0145] Optionally, the roller section 122 further includes an elastic element 1226, one end of which is connected to the roller body 1221, and the other end of which is connected to the roller cover 1222.

[0146] Under the reverse drive of the drive unit 3, the transmission member 1224 can drive the roller cover 1222 to rotate in the opposite direction and open the first opening 12211, and the elastic member 1226 is in a stretched state; under the forward drive of the drive unit 3, the transmission member 1224 can first drive the roller cover 1222 to rotate in the forward direction and close the first opening 12211, and then drive the roller cover 1222 and the roller body 1221 to rotate together, and the elastic member 1226 returns to its initial state.

[0147] like Figure 5 and Figure 6 As shown, the roller cover 1222 may include a cover plate 12221 and a cover support 12222. The cover support 12222 is mounted on the rotating sleeve 1228 and connected to the transmission member 1224. The cover plate 12221 is fixedly connected to the cover support 12222, so that the driving force can be transmitted from the transmission member 1224 to the cover support 12222, and drive the cover support 12222 and the cover plate 12221 to rotate together.

[0148] The elastic element 1226 can be a single spring or multiple springs. One end of the elastic element 1226 is connected to the roller body 1221, and the other end of the elastic element 1226 is connected to the roller slide cover 1222. When the roller slide cover 1222 rotates, it can stretch the elastic element 1226 and cause the elastic element 1226 to undergo elastic deformation.

[0149] Specifically, under the reverse drive of the drive unit 3, the drive unit 3 can drive the roller cover 1222 to rotate in the reverse direction through the transmission member 1224 to open the first opening 12211. At this time, materials can be loaded and unloaded through the first opening 12211. Furthermore, the reverse rotation of the roller cover 1222 will also stretch the elastic member 1226, causing the elastic member 1226 to undergo elastic deformation. At this time, the elastic force of the elastic member 1226 cooperates with the reverse locking member 1225 to prevent the roller body 1221 from shaking and to keep the roller body 1221 in a stable stationary state, thereby facilitating the reliability and safety of material loading and unloading.

[0150] In particular, when the roller body 1221 rotates to the position where the first opening 12211 is aligned with the discharge port below the box body 121, i.e., when the dried material is discharged, the shaking of the roller body 1221 will not only cause the first opening 12211 to shift and prevent it from being completely aligned with the discharge port of the box body 121, but will also cause the dried material inside to scatter, all of which will affect the discharge efficiency. At this time, the elastic force of the elastic element 1226 and the cooperation of the reverse locking element 1225 can prevent the roller body 1221 from shaking, thereby ensuring the discharge efficiency.

[0151] Under the forward drive of the drive unit 3, the drive unit 3 can first drive the drum cover 1222 to rotate forward to close the first opening 12211 through the transmission member 1224, so that the drum cover 1222 and the drum body 1221 form a transmission connection, and the elastic member 1226 returns to its initial state. That is, before the drum cover 1222 rotates back to close the first opening 12211, the elastic member 1226 is in a stretched state. The elastic force of the elastic member 1226 and the cooperation of the reverse locking member 1225 can prevent the drum body 1221 from shaking and keep the drum body 1221 in a stable stationary state. Afterwards, the drive unit 3 can drive the drum cover 1222 and the drum body 1221 to rotate together through the transmission member 1224, and fully mix the material to be dried with the drying gas.

[0152] In addition, the introduction of the elastic element 1226 ensures a smooth transition of the roller cover 1222 during opening and closing, avoiding impacts and vibrations caused by sudden opening or closing, thereby enhancing the stability and reliability of the drying oven operation.

[0153] Optionally, the end of the roller body 1221 has a protrusion 12212, and when the roller cover 1222 closes the first opening 12211, the roller cover 1222 abuts against the protrusion 12212.

[0154] like Figure 6 As shown, the protrusion 12212 is located at at least one end of the drum body 1221 and protrudes outward along the axial direction of the drum body 1221. When the drum cover 1222 rotates to close the first opening 12211, the drum cover 1222 can abut against the protrusion 12212, so that the drum cover 1222 and the drum body 1221 form a transmission connection, so that the drum cover 1222 can drive the drum body 1221 to rotate together, and achieve full mixing of the material to be dried and the drying gas.

[0155] Typically, a protrusion 12212 is provided at each of the two ends of the roller body 1221, and the line connecting the two protrusions 12212 is parallel to the axis of the roller body 1221. When the roller cover 1222 rotates to close the first opening 12211, the roller cover 1222 can abut against the protrusions 12212 on both sides and form a reliable transmission connection between the roller cover 1222 and the roller body 1221.

[0156] In another embodiment, an arc-shaped groove may be formed on one of the roller body 1221 and the roller slide cover 1222, and a protrusion may be formed on the other of the roller body 1221 and the roller slide cover 1222, and the protrusion may slide within the arc-shaped groove. When the protrusion slides to one end of the arc-shaped groove, i.e., the limiting area, the roller slide cover 1222 closes the first opening 12211 and forms a transmission connection with the roller body 1221; when the protrusion slides in the opposite direction to leave the limiting area, the roller slide cover 1222 opens the first opening 12211 and disengages from the transmission connection with the roller body 1221.

[0157] Optionally, it also includes a first hopper 21 and a second hopper 22, the first hopper 21 and the second hopper 22 being connected to the box body 121 respectively, the box body 121 having a second opening and a third opening;

[0158] When the drum cover 1222 closes the first opening 12211, the material to be dried can be dried inside the drum body 1221; when the drum cover 1222 opens the first opening 12211, the material to be dried can enter the drum body 1221 through the first hopper 21, the second opening and the first opening 12211, or the dried material can be discharged from the drum body 1221 through the first opening 12211, the third opening and the second hopper 22.

[0159] like Figure 6 As shown, when the first opening 12211 is closed by the roller cover 1222, a closed drying environment is formed inside the roller body 1221, and the material to be dried can be dried efficiently and evenly in this space.

[0160] When it is necessary to load new material to be dried or discharge dried material, the drum cover 1222 can open the first opening 12211. At this time, the material to be dried can conveniently enter the drum body 1221 through the first hopper 21, the second opening, and the first opening 12211, or the dried material can conveniently exit the drum body 1221 through the first opening 12211, the third opening, and the second hopper 22. This design greatly simplifies the material handling process and improves the efficiency of the drying operation.

[0161] By introducing the hopper assembly 2 with a first hopper 21 and a second hopper 22, the drying box of this invention can realize continuous loading and unloading of materials, avoiding the interruption and waiting time of material handling in traditional drying equipment, and improving the utilization rate and production efficiency of the drying box.

[0162] The independent design of the first hopper 21 and the second hopper 22 allows materials to be loaded and unloaded separately, further enhancing the flexibility of material handling. The first hopper 21 and the second hopper 22 can be located on two adjacent sides of the box body 121, or they can be located on two opposite sides of the box body 121.

[0163] Optionally, the hopper assembly 2 further includes a first weighing hopper 23 and a second weighing hopper 24, wherein the first weighing hopper 23 is provided on the side of the first hopper 21 away from the drying chamber, and the second weighing hopper 24 is provided on the side of the second hopper 22 away from the drying chamber.

[0164] like Figure 1 and Figure 2 As shown, the first weighing hopper 23 is used to weigh the material to be dried before drying, and the second weighing hopper 24 is used to weigh the dried material after drying. In this way, the moisture content in the material to be dried can be determined.

[0165] The controller can control the working status of the first weighing hopper 23 and the second weighing hopper 24 to facilitate corresponding weighing detection. A valve can also be installed at the outlet of the first weighing hopper 23 and the inlet of the second weighing hopper 24. The controller can adjust the quality and speed of the feed and discharge by controlling the opening of the two valves, thus facilitating reliable control of the drying process.

[0166] Optionally, the box body 121 is provided with a first positioning member 1213, which is used to position the loading station and unloading station of the roller body 1221.

[0167] Specifically, the first positioning element 1213 includes, but is not limited to, a sensor switch and a positioning plate. During the rotation of the roller body 1221, the sensor switch can sense its rotation and respond when it reaches the loading or unloading station, indicating that the roller body 1221 is at the loading or unloading station. Alternatively, during the rotation of the roller body 1221, the positioning plate can act as an obstruction when it reaches the loading or unloading station, also indicating that the roller body 1221 is at the loading or unloading station, both ensuring the reliability of material loading and unloading.

[0168] like Figure 3As shown, when the roller body 1221 rotates to the loading position, the first opening 12211 is opposite to the second opening of the box body 121, allowing the loading of materials to be dried; when the roller body 1221 rotates to the unloading position, the first opening 12211 is opposite to the third opening of the box body 121, allowing the discharge of dried materials. During the rotation of the roller body 1221, the first positioning element 1213 can sense these two working positions, thereby ensuring the reliability of material loading and unloading.

[0169] In addition, when there are two stacked drying boxes, a positioning element can be provided on the outer wall of each drying box. That is, a first positioning element 1213 is provided on the outer wall of the first drying box 12, and a second positioning element 422 is provided on the outer wall of the second drying box 42. The two positioning elements are used to position the rotation of the rollers respectively.

[0170] Optionally, a drying gas flows inside the roller shaft 1223, and the outer periphery of the roller shaft 1223 has a fourth opening 12231, which is used to transfer the drying gas to the roller body 1221.

[0171] like Figure 4 As shown, the design of the roller shaft 1223 allows the drying gas inside the roller shaft 1223 to directly enter the interior of the roller body 1221 through the fourth opening 12231 without passing through additional pipes or spaces. This reduces energy loss and time delay during the transmission of the drying gas, and also ensures that the drying gas can be quickly and evenly distributed inside the roller body 1221, thereby improving the contact efficiency and drying effect between the drying gas and the material to be dried.

[0172] The arrangement of the roller shaft 1223 not only enables direct transmission of drying gas but also makes the entire drying chamber structure more compact. As a bridge connecting the external drying source and the roller body 1221, the roller shaft 1223 effectively reduces redundant space in the drying chamber and improves space utilization.

[0173] By creating a fourth opening 12231 on the outer periphery of the drum shaft 1223, it is ensured that the drying gas is evenly distributed inside the drum body 1221. This evenly distributed drying gas helps the material to be dried to achieve a more consistent drying effect during the drying process, avoiding problems such as localized overheating or insufficient drying.

[0174] According to the actual design, the fourth opening 12231 can be an independent strip opening, or a combination of multiple strip openings and circular openings.

[0175] like Figure 4 As shown, the support 1227 can be used to fix the roller shaft 1223 for easy installation.

[0176] Optionally, the outer periphery of the roller shaft 1223 is provided with an air guide 12232, which is located at the fourth opening 12231 and is used to guide the transmission of the dry gas;

[0177] And / or, the outer periphery of the roller shaft 1223 is provided with a guide 12233, which is used to guide the movement of the material to be dried.

[0178] like Figure 4 As shown, one or more air guides 12232 can be provided on the outer periphery of the drum shaft 1223. The air guides 12232 are used to guide the drying gas flowing out from the fourth opening 12231 to ensure that the drying gas is evenly distributed inside the drum body 1221. This evenly distributed drying gas helps the material to be dried to achieve a more consistent drying effect during the drying process, avoiding problems such as local overheating or insufficient drying. The air guides 12232 can be air guide plates, air guide strips, air guide vanes, etc.

[0179] like Figure 4 As shown, the guide component 12233 can guide the movement of the material to be dried, prevent the material to be dried from adhering to the roller shaft 1223, and thus ensure that the material to be dried can be fully mixed with the drying gas in the roller body 1221 and achieve better drying.

[0180] Optionally, both the roller cover 1222 and the roller body 1221 have a screen-like structure.

[0181] Specifically, the screen-like structure allows the humid gas inside the drum body 1221 to be discharged and discharged to the outside through the first exhaust pipe 124 of the drying chamber, so as to ensure that the gas inside the drum body 1221 is always dry, thereby ensuring its drying effect.

[0182] The screen openings are designed to allow only humid gas to escape, while preventing materials from entering or exiting, thus avoiding abnormal material drop.

[0183] The above embodiments mainly describe the differences between the various embodiments. As long as the different optimization features between the various embodiments are not contradictory, they can be combined to form a better embodiment. For the sake of brevity, they will not be elaborated here.

[0184] While specific embodiments of the present invention have been described in detail by way of examples, those skilled in the art should understand that the above examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Those skilled in the art should understand that modifications can be made to the above embodiments without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. A drying apparatus, characterized in that, include: At least two drying chambers are arranged in series. Each drying chamber has a feed end and a discharge end. The feed end of the first drying chamber is used to load the material to be dried, and the discharge end of the last drying chamber is used to discharge the dried material. The feed ends of the remaining drying chambers can be connected to the discharge end of the previous drying chamber, so that the material to be dried can pass through multiple drying chambers in sequence and be dried multiple times. Furthermore, the drying temperature of the drying ovens changes along the arrangement direction from the first drying oven to the last drying oven; At least a portion of the drying chamber is equipped with a heating element, which allows the material to be dried to be dried within the drying chamber.

2. The drying apparatus according to claim 1, characterized in that, Along the arrangement direction from the first drying oven to the last drying oven, the drying temperature of the drying oven gradually decreases.

3. The drying apparatus according to claim 1, characterized in that, Multiple drying boxes are stacked vertically, with the discharge end of the upper drying box connected to the feed end of the adjacent drying box below.

4. The drying apparatus according to claim 1, characterized in that, Multiple drying ovens are arranged side by side in a horizontal direction.

5. The drying apparatus according to claim 4, characterized in that, It also includes a feeding section (5), one end of which is connected to the feeding end of the drying chamber, and the other end of which is connected to the discharge end of the previous drying chamber. The feeding section (5) is used to transfer the material to be dried.

6. The drying apparatus according to claim 5, characterized in that, One end of the feeding part (5) is detachably connected to the feeding end of the drying box, and the other end of the feeding part (5) is detachably connected to the discharge end of the previous drying box.

7. The drying apparatus according to claim 1, characterized in that, The number of drying boxes is no less than three, with some of the drying boxes stacked vertically and others arranged side by side horizontally.

8. The drying apparatus according to claim 1, characterized in that, Each of the feed ends is provided with a first sealing plate (123), the first sealing plate (123) is movably connected to the feed end of the drying box and can close or open the feed port; Each of the discharge ends is provided with a second sealing plate, which is movably connected to the discharge end of the drying box and can close or open the discharge port.

9. The drying apparatus according to claim 1, characterized in that, It also includes at least two drying tubes, each of which contains drying gas, each of which has an inlet and an outlet, each of which is connected to an inlet to transmit the drying gas to the drying chamber, and the outlet is used to discharge humid gas.

10. The drying apparatus according to claim 9, characterized in that, It also includes an adjustment unit for signal connection and a first detection unit, which are disposed inside the drying tube. The first detection unit is used to detect the temperature information or air volume information of the drying tube, and the adjustment unit can adjust at least one of the flow rate and velocity of the drying gas based on the information.

11. The drying apparatus according to claim 1, characterized in that, It also includes a second detection unit, which is located inside the drying chamber. The second detection unit is used to detect the drying temperature of the drying chamber or the mass difference of the material to be dried before and after drying.

12. The drying apparatus according to claim 1, characterized in that, Each of the drying ovens includes a box body (121) and a roller section (122) disposed on the box body (121). The roller section (122) includes a roller shaft (1223), a roller body (1221), and a roller cover (1222). The roller cover (1222) and the roller body (1221) are respectively sleeved on the roller shaft (1223). The roller body (1221) has a first opening (12211), and the roller body (1221) communicates with the box body (121) through the first opening (12211). The roller cover (1222) can rotate along the roller shaft (1223) and close or open the first opening (12211). When the roller cover (1222) closes the first opening (12211), the roller cover (1222) and the roller body (1221) form a transmission connection. When the roller cover (1222) opens the first opening (12211), the roller cover (1222) and the roller body (1221) are disengaged from the transmission connection.

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