Energetic material transfer and drying drum

Abstract

The utility model provides a kind of energy-containing material transfer drying material barrel, belong to energy-containing material production technical field, including outer bucket, inner tube and normally closed valve;The lower end of outer bucket forms blanking port, inner tube is connected in outer bucket by the interval distribution of several baffle along its circumference, normally closed valve sealingly passes through the lower end of inner tube, and and inner tube jointly with outer bucket between form material cavity, material cavity is used to accommodate energy-containing material;Normally closed valve is used to close blanking port under normal state, also be used to butt joint material pipe and open blanking port under the push of material pipe;Normally closed valve has air inlet along its axial penetration, the inside of each baffle is equipped with hot air chamber, each hot air chamber is communicated with the inner chamber of inner tube, and is communicated with outside through the ventilation hole of outer bucket peripheral wall.The energy-containing material transfer drying material barrel provided by the utility model is favorable to improve energy-containing material drying efficiency and transfer efficiency, and then improve the production efficiency of energy-containing material.

Description

Technical Field

[0001] This utility model belongs to the field of energetic material carrier technology, specifically relating to an energetic material transfer and drying hopper. Background Technology

[0002] Energetic materials are compounds or mixtures containing explosive groups or oxidizers and combustibles that can independently undergo chemical reactions and output energy. They are an important component of explosives, propellants, and rocket propellant formulations. During the production of energetic materials, they need to be transferred to the next forming and processing stage after drying.

[0003] In existing technologies, energetic materials are typically dried in a high-temperature resistant container. A discharge valve is installed at the bottom of the container. After drying, a robotic arm moves the container to the molding processing station, and then the discharge valve is opened, allowing the energetic material to fall into the receiving mechanism of the molding processing equipment, thus completing the transfer process. The drawback of this process is that the high-temperature resistant container relies solely on heat transfer from the container wall to dry the energetic material inside, resulting in poor uniform heating and low drying efficiency. Utility Model Content

[0004] This utility model provides a transfer and drying hopper for energetic materials, which aims to improve the transfer and drying efficiency in the production process of energetic materials.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: providing an energetic material transfer and drying hopper for feeding material to a receiving mechanism, the receiving mechanism having a receiving pipe and a push rod located inside the receiving pipe; the energetic material transfer and drying hopper includes an outer hopper, an inner cylinder and a normally closed valve; The lower end of the outer barrel forms a material discharge port. The inner barrel is connected to the outer barrel by several partitions spaced along its circumference. A normally closed valve is sealed at the lower end of the inner barrel and together with the inner barrel and the outer barrel, they form a material cavity, which is used to contain energetic materials. The normally closed valve is used to close the material discharge port under normal conditions, and also to connect to the material receiving pipe and open the material discharge port under the push of the push rod. The normally closed valve has an air inlet channel that runs through it along its axis. Each partition has a hot air chamber inside, and each hot air chamber is connected to the inner cavity of the inner barrel and connected to the outside through ventilation holes opened on the circumferential wall of the outer barrel.

[0006] In one possible implementation, the circumferential wall of the inner cylinder is distributed with multiple rings of inner holes at intervals along its axial direction, and each inner hole in each ring is connected to a corresponding hot air cavity.

[0007] In some embodiments, the normally closed valve includes a hollow valve core and an elastic pusher; the inner cavity of the hollow valve core forms an air inlet channel, and the outer peripheral wall of the hollow valve core is provided with a sealing ring; one end of the elastic pusher is fixedly connected to the inner cylinder, and the other end is connected to the hollow valve core; wherein, the sealing ring closes the material outlet under the elastic pusher force of the elastic pusher on the hollow valve core to form a closed valve state, and is lifted away from the material outlet under the pusher force of the pusher rod on the hollow valve core to form an open valve state.

[0008] For example, the bottom wall of the outer barrel is a cone bottom, and the material discharge port is opened at the center of the cone bottom; a sealing ring is fitted on the peripheral wall of the sealing ring, and when the valve is closed, the sealing ring is squeezed between the sealing ring and the inner peripheral wall of the material discharge port; the upper surface of the sealing ring forms a downward sloping material discharge surface.

[0009] For example, the top of the hollow valve core is provided with a connecting ring, which is fixed to the inner circumferential wall of the hollow valve core by a number of connecting ribs distributed at intervals along its circumference; the elastic pusher includes a valve stem and an elastic element, one end of the valve stem is fixedly connected to the inner cylinder, and the other end slides through the connecting ring; the elastic element is sleeved on the valve stem and elastically presses against the connecting ring.

[0010] In one possible implementation, a sliding sleeve is sealed and embedded in the inner cylinder, and the hollow valve core seal passes through the sliding sleeve to form a sliding fit.

[0011] In some embodiments, the outer barrel includes a barrel body and a barrel lid; the top of the barrel body is open and covered with a barrel lid, and the barrel lid has several ventilation windows distributed circumferentially, each ventilation window having a ventilation membrane inside.

[0012] For example, the center of the lid has an upwardly protruding conical cavity, and the top of the inner cylinder has a pointed cone that is fitted into the conical cavity.

[0013] For example, each partition has a chamfered top and a downward-extending heat-conducting plate at the bottom.

[0014] In some embodiments, the top of the outer barrel has a number of ear plates spaced apart along its circumference for gripping by a robotic arm, and the lower outer periphery of the outer barrel is provided with anti-fooling ribs.

[0015] The beneficial effects of the energetic material transfer and drying hopper provided by this utility model are as follows: Compared with the prior art, the energetic material transfer and drying hopper of this utility model forms an annular material cavity between the inner cylinder and the normally closed valve and the outer cylinder. At the same time, the material cavity is divided into several small chambers by a ring of partitions distributed at intervals around the outer circumference of the inner cylinder. High-temperature hot air can enter the inner cylinder from the air inlet of the normally closed valve, and then pass through each hot air cavity and exit through each ventilation hole. As a result, the inner cylinder, the outer cylinder and each partition are all exposed to high temperature and come into contact with the energetic material, thereby increasing the thermal contact area of ​​the energetic material in the material cavity. This not only improves the drying uniformity of the energetic material, but also helps to improve the drying efficiency of the energetic material.

[0016] After the energetic material is dried at the drying station, the outer barrel can be picked up by a hoisting device or a robotic arm and transferred to the receiving mechanism at the forming station. The material inlet of the outer barrel is then aligned with the receiving pipe. When the receiving pipe rises, it pushes open the normally closed valve, allowing the energetic material in the material chamber to fall into the receiving pipe. The material dropping process is simple and efficient, which helps to improve the transfer efficiency of energetic materials and, in turn, improves the production efficiency of energetic materials in conjunction with the efficient drying process. Attached Figure Description

[0017] Figure 1 A quarter-section axonometric view of the energetic material transfer and drying hopper provided in this embodiment of the utility model; Figure 2 A half-sectional structural diagram of the energetic material transfer and drying hopper provided in an embodiment of this utility model; Figure 3 A three-dimensional structural schematic diagram of the energetic material transfer and drying hopper provided for an embodiment of this utility model; Figure 4 A schematic diagram of the internal structure of the energetic material transfer and drying hopper after the lid is opened, as provided in an embodiment of this utility model. Figure 5 A schematic diagram of the cross-sectional structure of the energetic material transfer and drying hopper provided in an embodiment of this utility model.

[0018] In the diagram: 10. Feeding pipe; 11. Push rod; 20. Outer barrel; 201. Discharge port; 202. Material cavity; 203. Ventilation hole; 204. Conical bottom; 205. Ear plate; 206. Anti-fooling rib; 21. Barrel body; 22. Barrel lid; 221. Ventilation window; 222. Conical cavity; 30. Inner cylinder; 31. Partition plate; 311. Hot air cavity; 312. Beveled corner; 313. Heat-conducting plate; 32. Inner hole; 33. Sliding sleeve; 34. Pointed cone; 40. Normally closed valve; 400. Air inlet duct; 41. Hollow valve core; 411. Sealing ring; 4111. Discharge slope; 412. Connecting ring; 413. Connecting rib; 42. Elastic pusher; 421. Valve stem; 422. Elastic element; 50. Gripper. Detailed Implementation

[0019] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0020] It should be noted that when a component is referred to as "set on" or "connected to" another component, it can be directly on the other component or indirectly on the other component.

[0021] It should be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0022] In the description of this application, "multiple" or "several" means two or more, unless otherwise expressly and specifically defined.

[0023] In existing technologies, conical containers are often used for transporting energetic materials. After energetic materials are prepared from chemical raw materials through chemical reactions, the first step is to dry them before they can be molded and processed according to the design. The drying process involves loading the energetic material into the conical container and then placing it in the drying chamber using a transfer device such as a robotic arm. The conical container is exposed to hot air in the drying chamber and receives high temperatures. The heat is transferred from the container wall to the energetic material inside the conical container, thus achieving drying.

[0024] The portion of energetic material in direct contact with the barrel wall inside the cone is dried quickly, while the drying speed is slower closer to the center of the cone. Therefore, the heating uniformity of energetic material inside the cone is poor, which has a significant impact on drying efficiency.

[0025] For existing automated equipment systems for processing energetic materials, the forming process is usually equipped with a dedicated receiving mechanism. This receiving mechanism has a liftable receiving pipe that can be driven by a telescopic drive such as a cylinder. When receiving energetic materials, the receiving pipe rises and automatically falls after receiving the materials. The energetic material transfer and drying hopper provided in this application is used in conjunction with this receiving structure.

[0026] Please refer to the following: Figures 1 to 5The present invention provides a description of the energetic material transfer and drying hopper. The energetic material transfer and drying hopper is used to feed material to a receiving mechanism, which has a receiving pipe 10 and a push rod 11 located inside the receiving pipe 10. The energetic material transfer and drying hopper includes an outer hopper 20, an inner cylinder 30, and a normally closed valve 40. A discharge port 201 is formed at the lower end of the outer hopper 20. The inner cylinder 30 is connected to the outer hopper 20 by several partitions 31 spaced apart along its circumference. The normally closed valve 40 is sealed and passes through the lower end of the inner cylinder 30, and together with the inner cylinder 30, it seals the space between the inner cylinder 30 and the outer hopper 20. A material cavity 202 is formed, which is used to contain energetic materials. The normally closed valve 40 is used to close the discharge port 201 under normal conditions, and is also used to connect to the receiving pipe 10 and open the discharge port 201 under the push of the push rod 11. The normally closed valve 40 has an air inlet duct 400 that runs through it along its axis. Each partition 31 is provided with a hot air chamber 311 inside. Each hot air chamber 311 is connected to the inner cavity of the inner cylinder 30 and is connected to the outside through the ventilation hole 203 opened on the periphery of the outer cylinder 20.

[0027] The working process of the energetic material transfer and drying hopper provided in this embodiment is as follows: After the energetic material produced by the chemical reaction of chemical raw materials is loaded into the material chamber 202, it is transferred to the hot air drying chamber of the drying process by a transfer device such as a robotic arm that grabs the outer barrel 20. In the hot air drying chamber, hot air enters the inner cylinder 30 through the air inlet duct 400, then enters the hot air chamber 311 inside each partition 31 from the inner cylinder 30, and finally exits through each ventilation hole 203, thus forming a drying path with continuous hot air circulation. Using this drying path, the normally closed valve 40, the inner cylinder 30, each partition 31 and the outer barrel 20 can all come into contact with the hot air and be heated. Moreover, the material chamber 202 is divided into several small chambers due to the separation of each partition 31. The energetic material comes into contact with the cavity wall of each small chamber, which greatly increases the heating area of ​​the energetic material, thereby achieving efficient drying of the energetic material.

[0028] After drying, the material is rotated to the top of the receiving mechanism via a transfer device, so that the discharge port 201 is sealed and connected to the receiving pipe 10. Then, the telescopic drive of the receiving mechanism drives the receiving pipe 10 to rise. The rise of the receiving pipe 10 generates an upward pushing force on the normally closed valve 40 that is blocking the discharge port 201, causing the normally closed valve 40 to open. The energetic material can then fall smoothly from the discharge port 201 into the receiving pipe 10, thus completing the drying and transfer process of the energetic material.

[0029] Compared with the prior art, the energetic material transfer and drying hopper provided in this embodiment forms an annular material cavity 202 between the inner cylinder 30 and the normally closed valve 40 and the outer cylinder 20. At the same time, the material cavity 202 is divided into several small chambers by a ring of partitions 31 distributed at intervals around the outer periphery of the inner cylinder 30. High-temperature hot air can enter the inner cylinder 30 from the air inlet 400 of the normally closed valve 40, and then pass through each hot air cavity 311 and exit through each ventilation hole 203. As a result, the inner cylinder 30, the outer cylinder 20 and each partition 31 all obtain high temperature and contact the energetic material, thereby increasing the thermal contact area of ​​the energetic material in the material cavity 202. This not only improves the drying uniformity of the energetic material, but also helps to improve the drying efficiency of the energetic material.

[0030] After the energetic material is dried at the drying station, the outer barrel 20 can be picked up by a hoisting device or a robotic arm and transferred to the receiving mechanism at the forming processing station. The material discharge port 201 of the outer barrel 20 is then connected to the receiving pipe 10. When the receiving pipe 10 rises, it pushes open the normally closed valve 40, allowing the energetic material in the material chamber 202 to fall into the receiving pipe 10. The material discharge process is simple and efficient, which helps to improve the transfer efficiency of energetic materials and, in turn, improves the production efficiency of energetic materials in conjunction with the efficient drying process.

[0031] In some embodiments, see Figure 2 The inner cylinder 30 has multiple rings of inner holes 32 spaced along its axial direction on its peripheral wall, and each inner hole 32 in each ring is connected to a corresponding hot air cavity 311.

[0032] By setting multiple inner holes 32 at intervals along the axial direction of the inner cylinder 30, the hot air entering the inner cylinder 30 enters the hot air cavity 311 through each inner hole 32. This can improve the hot air circulation efficiency, thereby improving the drying efficiency. On the other hand, it can improve the uniformity of hot air entering different areas of the hot air cavity 311, thereby improving the heat transfer uniformity of the partition 31 to the energetic materials in different areas, and thus improving the drying uniformity of the energetic materials.

[0033] For a specific structural form of the normally closed valve 40 mentioned above, please refer to [link / reference]. Figure 2 The normally closed valve 40 includes a hollow valve core 41 and an elastic pusher 42. The inner cavity of the hollow valve core 41 forms an air inlet duct 400, and the outer peripheral wall of the hollow valve core 41 is provided with a sealing ring 411. One end of the elastic pusher 42 is fixedly connected to the inner cylinder 30, and the other end is connected to the hollow valve core 41. The sealing ring 411 closes the material outlet 201 under the elastic pusher force of the elastic pusher 42 on the hollow valve core 41 to form a closed valve state, and is lifted away from the material outlet 201 under the pusher force of the pusher rod 11 on the hollow valve core 41 to form an open valve state.

[0034] The hollow valve core 41, based on the air inlet 400 formed within its inner cavity, has the same function of transferring heat to its outer periphery as the inner cylinder 30, thereby drying the energetic materials surrounding it and improving the drying efficiency of the energetic materials in the material chamber 202. The sealing ring 411 can specifically be a high-temperature resistant material, such as a polytetrafluoroethylene ring, fitted around the outer periphery of the hollow valve core 41. The elastic pusher 42 provides a downward thrust to the hollow valve core 41, causing the sealing ring 411 to tightly press against the edge of the discharge port 201, thus sealing the discharge port 201. When the discharge port 201 is connected to the receiving pipe 10, the pusher 11 inside the receiving pipe 10 pushes the hollow valve core 41 upwards. At this time, the hollow valve core 41 moves upwards against the elastic force of the elastic pusher. When the sealing ring 411 rises with the hollow valve core 41 above the discharge port 201, the discharge port 201 opens due to the sealing effect of the sealing ring 411, allowing the energetic material in the material chamber 202 to fall into the receiving pipe 10. After the material is discharged, the push rod 11 descends, and the hollow valve core 41 resets under the action of the elastic pusher 42 until the sealing ring 411 is tightly pressed against the edge of the discharge port 201 again, thus restoring the valve to the closed state. At this point, the process can be transferred to the previous station for refilling of energetic material. The valve opening and closing action is simple and stable, which helps to improve the transfer efficiency.

[0035] It should be noted that, as Figures 1 to 3 As shown, in this embodiment, the bottom wall of the outer barrel 20 is a conical bottom 204, and the discharge port 201 is opened at the center of the conical bottom 204; the peripheral wall of the sealing ring 411 is fitted with a sealing ring (not shown in the figure), and when the valve is closed, the sealing ring is squeezed between the sealing ring 411 and the inner peripheral wall of the discharge port 201; the upper surface of the sealing ring 411 forms a downwardly inclined discharge slope 4111.

[0036] The outer barrel 20 adopts a cone shape to improve the smoothness of material falling into the receiving pipe 10 when the valve is open, while avoiding material accumulation on the bottom wall of the outer barrel 20. The sealing ring 411 can be machined and formed on the outer periphery of the hollow valve core 41 and made of the same metal material as the hollow valve core, such as high-strength stainless steel. In this case, by fitting a sealing ring on the outer periphery of the sealing ring 411, the sealing performance in the closed state is ensured by the sealing ring tightly abutting against the inner wall or edge of the material outlet 201. Of course, the sealing ring 411 can also be a high-temperature resistant flexible material fitted on the hollow valve core 41. In this case, it is not necessary to fit a sealing ring, and the sealing is achieved entirely by the tight contact between the sealing ring 411 and the edge of the material outlet 201. Alternatively, a sealing ring can be fitted to further improve the sealing effect.

[0037] The presence of the sealing ring 411 creates a step on the outer periphery of the hollow valve core 41. To prevent the energetic material from accumulating on the upper surface of the sealing ring 411, the upper surface of the sealing ring 411 is designed as a downward-sloping material discharge slope 4111, thereby improving the cleanliness of the material discharge from the material chamber 202 when the valve is open.

[0038] For some possible implementations, please refer to [link / reference]. Figure 1 , Figure 2 and Figure 5 The top end of the hollow valve core 41 is provided with a connecting ring 412. The connecting ring 412 is fixed to the inner circumferential wall of the hollow valve core 41 by a number of connecting ribs 413 distributed at intervals along its circumference. The elastic pusher 42 includes a valve stem 421 and an elastic element 422. One end of the valve stem 421 is fixedly connected to the inner cylinder 30, and the other end slides through the connecting ring 412. The elastic element 422 is sleeved on the valve stem 421 and elastically presses against the connecting ring 412.

[0039] To ensure the smooth flow of hot air from the air inlet duct 400 into the inner cylinder 30, several connecting ribs 413 are used to fix the connecting ring 412 to the hollow valve core, allowing the hot air to enter the inner cylinder 30 through the holes between the connecting ribs 413. The connecting ring 412 provides a connection base for the valve hole, allowing the valve stem 421 to be fixedly connected to the inner cylinder 30 at one end and movably connected to the hollow valve core 41 at the other end. In this way, when the hollow valve core 41 is subjected to the upward thrust of the push rod 11 along its axial direction, the connecting ring 412 can slide upward along the valve stem 421 and compress the elastic element 422, thereby lifting the sealing ring 411 away from the discharge port 201 and forming the valve open state; when the push rod 11 descends and removes the pushing force on the hollow valve core 41, the elastic element 422 releases its elastic force and pushes the connecting ring 412 downward, thereby causing the hollow valve core to descend and reset to the valve closed state where the sealing ring 411 blocks the discharge port 201. The structure is simple and reliable.

[0040] The aforementioned elastic element 422 can be a helical spring or a disc spring. The top end of the valve stem 421 can be fixed to the inner wall of the inner cylinder 30 through a connecting plate. The elastic element 422 can have its two ends abutting against the connecting plate and the connecting ring 412 respectively, or the valve stem 421 can have a limiting pin passing through it radially. One end of the elastic element 422 abuts against the limiting pin, and the other end abuts against the connecting ring 412.

[0041] Specifically, such as Figure 2 As shown, a sliding sleeve 33 is sealed and embedded in the inner cylinder 30, and the hollow valve core 41 is sealed and inserted through the sliding sleeve 33 to form a sliding fit. The sliding sleeve 33 can be made of a high-temperature resistant, low-friction material such as polytetrafluoroethylene. By setting the sliding sleeve 33, it is beneficial to reduce the relative sliding resistance between the hollow valve core and the inner cylinder 30, and to improve the connection and sealing between the hollow valve core and the inner cylinder 30. This avoids the leakage of hot air into the material chamber 202 or the entry of energetic materials into the inner cylinder 30, ensuring the safe and stable drying and transfer process of energetic materials.

[0042] As one specific embodiment of the aforementioned outer barrel 20, please refer to Figure 1The outer bucket 20 includes a bucket body 21 and a bucket lid 22; the top of the bucket body 21 is open and covered by the bucket lid 22, and the bucket lid 22 has several ventilation windows 221 distributed circumferentially, and each ventilation window 221 is provided with a ventilation membrane.

[0043] The openable lid 22 allows for easy feeding into the material chamber 202. The lid 22 has a ventilated window 221 with a breathable membrane. This ensures the breathability of the material chamber 202 and prevents high pressure from rising inside the material chamber 202 during the drying process of energetic materials. It also ensures breathability while preventing the energetic materials from leaking out and preventing external dust or debris from entering the material chamber 202.

[0044] It should be noted that the aforementioned breathable membrane can be a polytetrafluoroethylene breathable membrane or a thermoplastic polyurethane breathable membrane, and the specific material can be selected according to the type and characteristics of the energetic material.

[0045] Optionally, such as Figure 2 As shown, in this embodiment, the center of the lid 22 is provided with an upwardly protruding conical cavity 222, and the top of the inner cylinder 30 is provided with a pointed cone 34, which is fitted into the conical cavity 222. The cooperation between the pointed cone 34 and the conical cavity 222 can, on the one hand, provide guidance and positioning for the lid 22 on the barrel body 21, thereby improving the ease and stability of the lid 22 installation; on the other hand, when the lid 22 is opened to add material into the material cavity 202, the pointed cone 34 at the top of the inner cylinder 30 can prevent material accumulation on the top wall of the inner cylinder 30.

[0046] Based on the above, see Figure 1 and Figure 4 Each partition 31 has a chamfered top 312 and a downward-extending heat-conducting plate 313 at its bottom. The chamfered top 312 prevents material accumulation at the top of the partition 31 when the lid 22 is opened to add material into the material chamber 202. The heat transfer between the partition 31 and the heat-conducting plate 313 enables the heat-conducting plate 313 to perform a drying function, thereby increasing the contact area for drying energetic materials and improving drying efficiency.

[0047] Please see Figure 1 It should be noted that, in this embodiment, the top of the outer barrel 20 has a plurality of ear plates 205 for the robotic arm to grasp at at intervals along its circumference, and the lower outer periphery of the outer barrel 20 is provided with anti-fooling ribs 206.

[0048] By setting the anti-misalignment rib 206, it can cooperate with the anti-misalignment groove corresponding to the top of the receiving pipe 10, thereby improving the docking speed and docking position accuracy between the discharge port 201 and the receiving pipe 10, which is conducive to improving work efficiency. The specific structure of the ear plate 205 can be set according to the structure of the gripper 50 of the transfer device such as the robot. For example, the gripper 50 adopts two inverted T-shaped structures that can open and close, and two ear plates 205 with U-grooves are symmetrically set at the top of the outer barrel 20. When gripping the outer barrel 20, the two grippers 50 open and align with the U-grooves of the two ear plates 205 respectively. Then the grippers 50 retract and lock into the U-grooves. The lower horizontal support of the gripper 50 hooks on both sides of the U-grooves. In this way, the outer barrel 20 can be gripped stably. When putting it down, the two grippers 50 open and disengage from the U-grooves. The gripping method is simple and convenient.

[0049] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A material transfer and drying hopper for feeding materials to a receiving mechanism, the receiving mechanism having a receiving pipe and a push rod located inside the receiving pipe; characterized in that, Includes outer barrel, inner barrel, and normally closed valve; The lower end of the outer barrel forms a material discharge port. The inner barrel is connected to the outer barrel by several partitions spaced apart along its circumference. The normally closed valve is sealed and installed at the lower end of the inner barrel, and together with the inner barrel and the outer barrel, they form a material cavity, which is used to contain energetic materials. The normally closed valve is used to close the material discharge port under normal conditions, and is also used to connect to the receiving pipe and open the material discharge port under the push of the top rod; the normally closed valve has an air inlet channel that runs through it along its axis, and each of the partitions is provided with a hot air chamber inside, each of the hot air chambers is connected to the inner cavity of the inner cylinder and is connected to the outside through the ventilation holes opened on the peripheral wall of the outer cylinder.

2. The energetic material transfer and drying hopper as described in claim 1, characterized in that, The inner cylinder has multiple rings of inner holes spaced apart along its axial direction on its peripheral wall, and each of the inner holes in each ring is connected to a corresponding hot air cavity.

3. The energetic material transfer and drying hopper as described in claim 1, characterized in that, The normally closed valve includes a hollow valve core and an elastic pusher; the inner cavity of the hollow valve core forms the air inlet channel, and the outer peripheral wall of the hollow valve core is provided with a sealing ring; one end of the elastic pusher is fixedly connected to the inner cylinder, and the other end is connected to the hollow valve core. The sealing ring closes the material outlet under the elastic pushing force of the elastic pusher on the hollow valve core to form a closed valve state, and is lifted away from the material outlet under the pushing force of the pusher rod on the hollow valve core to form an open valve state.

4. The energetic material transfer and drying hopper as described in claim 3, characterized in that, The bottom wall of the outer barrel is conical, and the material discharge port is located at the center of the conical bottom; a sealing ring is fitted on the peripheral wall of the sealing ring, and when the valve is closed, the sealing ring is pressed between the sealing ring and the inner peripheral wall of the material discharge port; the upper surface of the sealing ring forms a downward sloping material discharge surface.

5. The energetic material transfer and drying hopper as described in claim 3, characterized in that, The hollow valve core is provided with a connecting ring at its top end. The connecting ring is fixed to the inner circumferential wall of the hollow valve core by a plurality of connecting ribs distributed at intervals along its circumference. The elastic pusher includes a valve stem and an elastic element. One end of the valve stem is fixedly connected to the inner cylinder, and the other end slides through the connecting ring. The elastic element is sleeved on the valve stem and elastically presses against the connecting ring.

6. The energetic material transfer and drying hopper as described in claim 3, characterized in that, The inner cylinder is sealed with a sliding sleeve, and the hollow valve core is sealed through the sliding sleeve to form a sliding fit.

7. The energetic material transfer and drying hopper as described in claim 1, characterized in that, The outer barrel includes a barrel body and a barrel lid; the top of the barrel body is open and covered by the barrel lid, and the barrel lid has a number of ventilation windows distributed circumferentially, and each ventilation window is provided with a ventilation membrane.

8. The energetic material transfer and drying hopper as described in claim 7, characterized in that, The lid has an upward-protruding conical cavity at its center, and the inner cylinder has a pointed cone at its top, which is fitted into the conical cavity.

9. The energetic material transfer and drying hopper as described in any one of claims 1-8, characterized in that, Each of the partitions has a chamfered top and a downward-extending heat-conducting plate at the bottom.

10. The energetic material transfer and drying hopper as described in any one of claims 1-8, characterized in that, The top of the outer barrel has several ear plates spaced apart along its circumference for gripping by a robotic arm, and the lower outer periphery of the outer barrel is provided with anti-fooling ribs.

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