Energy-containing ceramic matrix composite gel method drying structure and preparation method thereof

Abstract

The invention discloses an energetic ceramic-based composite material gel method drying structure and a preparation method of the energetic ceramic-based composite material gel method drying structure, and the energetic ceramic-based composite material gel method drying structure is applied to the technical field of energetic ceramic-based composite material preparation. The double action accelerates the discharge of the solvent in the gel, the micro-vibration promotes the active migration of solvent molecules, and the wall breaking assembly breaks the barrier formed by the surface hard shell, so that the internal solvent can be smoothly volatilized, the drying time is greatly shortened, the drying efficiency is improved, and the defect that the solvent is slowly discharged in a static heating mode is overcome. The heat distribution angle can be adjusted and changed through the guiding assembly, hot air flow can be accurately guided to the specific portion of gel on the drying disc according to the requirements of different stages in the drying process, and the problem that airflow is not evenly distributed in the traditional hot air blowing process is solved.

Description

Technical Field

[0001] The invention belongs to the technical field of preparation of energetic ceramic-based composite materials, and particularly relates to a gel-process drying structure of an energetic ceramic-based composite material and a preparation method thereof. Background Art

[0002] In the field of preparation of energetic ceramic-based composite materials, the gel method is a commonly used and important preparation method. There are many problems that need to be solved in the traditional gel drying process. From the perspective of drying uniformity, most existing drying devices use simple hot air blowing or static heating. Hot air blowing is difficult to ensure that the airflow is evenly distributed on the entire gel surface, resulting in large differences in drying speeds in different parts of the gel, which is prone to local over-drying or under-drying. For example, in the drying process of flat gels, the edge parts are more easily exposed to hot air flow, and the drying speed is significantly faster than that of the center parts, which will cause stress concentration inside the material, and it is very easy to cause defects such as cracks during subsequent processing or use. In the static heating method, due to the limitations of heat transfer, it is difficult to quickly and evenly discharge the solvent inside the gel, and the drying time is long and the efficiency is low.

[0003] In addition, during the drying process, a hard shell often forms on the surface of the gel. This hard shell will hinder the further volatilization of the internal solvent, prolong the drying time, and may cause internal solvent accumulation, causing material structure damage in subsequent processing.

[0004] Combining the above two points of view, it can be found that it is difficult to avoid the above problems at the same time when the existing devices on the market are in use, and even if they can be solved, they cannot achieve the desired effect. Therefore, we propose an energetic ceramic-based composite material gel drying structure and a preparation method thereof that can effectively solve the above problems when in use. Summary of the invention

[0005] The purpose of the present invention is to target an existing energetic ceramic-based composite material gel drying structure, which has the advantages of accelerating the discharge of the solvent inside the gel by setting a drying structure, micro-vibration of the drying structure, and periodic breaking of the hard shell on the surface of the gel by a wall-breaking component. The micro-vibration prompts the solvent molecules to migrate more actively, and the wall-breaking component breaks the barrier formed by the hard shell on the surface, so that the internal solvent can evaporate smoothly, greatly shortening the drying time, improving the drying efficiency, and overcoming the disadvantage of slow solvent discharge under static heating mode. The heat distribution angle can be adjusted by the guiding component, and the hot air flow can be accurately guided to a specific part of the gel on the drying plate according to the needs of different stages in the drying process, solving the problem of uneven air flow distribution in traditional hot air blowing.

[0006] The above technical object of the present invention is achieved by the following technical solutions: An energy-containing ceramic matrix composite gel drying structure, including a drying box body, a main shaft is rotatably connected inside the drying box body, and a plurality of support plates are bolted annularly on the surface of the main shaft. A plurality of drying mechanisms are sleeved on the surface of the main shaft, and one side of the support plate close to the drying mechanism is bolted thereto. A plurality of hollow rings are bolted inside the drying box body, and guiding components are communicated with the top and bottom of the inner wall of the hollow ring, and the guiding components are used in cooperation with the drying structure;

[0007] The drying mechanism includes a drying disc, one side of the drying disc close to the support plate is bolted thereto, an elastic support component is annularly arranged inside the drying disc, one side of the elastic support component close to the main shaft is bolted thereto, and one side of the elastic support component close to the bottom guiding component is connected thereto. A wall-breaking component is arranged on the side of the top guiding component far away from the inner wall of the hollow ring.

[0008] By adopting the above technical solutions, by setting the drying structure, the micro-vibration of the elastic support component and the periodic breaking of the hard shell on the surface of the gel by the wall-breaking component accelerate the discharge of the solvent inside the gel. The micro-vibration promotes the more active migration of the solvent molecules, and the wall-breaking component breaks the barrier formed by the surface hard shell, enabling the internal solvent to volatilize smoothly, greatly shortening the drying time, improving the drying efficiency, and overcoming the drawback of slow solvent discharge under the static heating method. The heat distribution angle can be adjusted and changed by the guiding component, and the hot air flow can be accurately guided to a specific part of the gel on the drying disc according to the requirements of different stages during the drying process, solving the problem of uneven air flow distribution in the traditional hot air blowing.

[0009] The present invention is further set as follows: The elastic support component includes a bearing member, the bearing member is annularly arranged inside the drying disc, an elastic rod is arranged at the bottom of the bearing member, and one side of the elastic rod close to the main shaft is connected thereto. A wedge block is in contact with the surface of the end of the elastic rod far away from the main shaft, and the wedge block is connected to the bottom guiding component. A fixing block is sleeved on the surface of the elastic rod, and a reset spring is arranged at the top of the fixing block, and the top of the reset spring is connected to the support plate. The elastic rod is used in cooperation with the bearing member.

[0010] With the above technical solution, by setting the elastic support component, when the drying tray drives the elastic support component to move to the bottom guiding component, the elastic rod will contact the bottom surface of the wedge-shaped block. Since the bottom of the wedge-shaped block is inclined, the elastic rod will gradually bend and deform along the bottom of the wedge-shaped block, driving the fixed block and the return spring to stretch. When the elastic rod separates from the wedge-shaped block, the elastic rod's own elasticity and the return spring can cause the end of the elastic rod away from the main shaft to vibrate up and down, and transmit the vibration to the bearing member, so that the bearing member vibrates up and down. Therefore, the vibration of the bearing member promotes the migration of solvent molecules inside the gel, improves the drying efficiency, and at the same time, the return spring and the fixed block ensure the stability and periodicity of the vibration, avoiding excessive impact on the gel.

[0011] The present invention is further configured as: the bearing member includes a rubber pad, the rubber pad is movably arranged at the top inside the drying tray, an adjusting plate is arranged at the bottom of the rubber pad, and a plurality of adjusting bolts are rotatably connected to the bottom of the adjusting plate. The bottom of the adjusting bolt extends to the bottom of the drying tray, and the adjusting bolt is threadedly connected to the drying tray. Adjusting springs are arranged at the top of the adjusting plate and the rubber pad, and the sides of the adjusting springs close to the rubber pad and the inner wall of the drying tray are respectively connected to the two.

[0012] With the above technical solution, by setting the bearing member, by rotating the adjusting bolt, the height of the adjusting plate and the rubber pad can be changed, and the adjusting spring provides buffering and adaptive support. During the drying process, by adjusting the tightness of the adjusting spring, the gel is dried in a micro-vibration state. Micro-vibration helps the migration and discharge of solvent molecules inside the gel, improves the drying efficiency, and at the same time, the elastic support can avoid damage to the gel caused by vibration.

[0013] The present invention is further configured as: a plurality of limiting cavities are annularly arranged inside the drying tray, and the adjusting plate and the rubber pad are both movably arranged inside the limiting cavities. An activity notch for cooperating with the elastic rod is arranged at the bottom of the adjusting plate.

[0014] With the above technical solution, the movement range of the adjusting plate and the rubber pad is limited by the limiting cavity to ensure its stable operation, and the activity notch provides space for the movement of the elastic rod.

[0015] The present invention is further configured as: the cell wall breaking component includes a rotating shaft, the rotating shaft is above the bearing member, and a plurality of reset telescopic members are annularly arranged on the surface of the rotating shaft. An arc-shaped plate is bolted to the side of the reset telescopic member away from the rotating shaft. A plurality of contact rods are bolted to the side of the arc-shaped plate away from the reset telescopic member. A connecting shaft is bolted to the side of the rotating shaft close to the inner wall of the hollow ring, and a gear is sleeved on the surface of the connecting shaft. The bottom of the gear is meshed with a rack, and the rack is connected to the drying tray.

[0016] With the above technical solution, by setting the wall-breaking component, when the drying disc drives the toothed plate to move to the gear, the toothed plate will engage with the gear and drive the gear to rotate. The gear synchronously drives the rotating shaft to rotate through the connecting shaft, and the reset telescopic member drives the arc plate and the contact rod to periodically contact the surface of the gel, which can effectively break the hard shell formed on the surface of the gel, accelerate the volatilization of the internal solvent, shorten the drying time, improve the drying quality, and solve the problem that the surface hard shell hinders the discharge of the solvent in the traditional drying process.

[0017] The present invention is further configured as: the guiding component includes a guiding channel, one side of the guiding channel close to the hollow ring is connected thereto, a guiding plate is rotatably connected inside the guiding channel, a reciprocating lead screw is rotatably connected to the inner wall of the guiding channel, and an internally threaded sleeve is threadedly connected to the surface of the reciprocating lead screw. One side of the internally threaded sleeve close to the guiding plate is rotatably connected to a connecting rod, and one side of the connecting rod close to the guiding plate is rotatably connected thereto.

[0018] With the above technical solution, by setting the guiding component, the reciprocating lead screw is driven to rotate by an externally connected motor, the internally threaded sleeve moves on the reciprocating lead screw, and the guiding plate is driven by the connecting rod to change the angle, thereby guiding the direction of the hot air flow. The direction of the hot air flow can be flexibly adjusted according to the drying requirements, improving the utilization efficiency of the hot air flow and the drying uniformity, and meeting the drying requirements of gels with different shapes and drying stages.

[0019] The present invention is further configured as: the two guiding plates at the top and bottom are arranged oppositely, and the guiding plate and the inner wall of the guiding channel are connected by a flexible connecting member.

[0020] With the above technical solution, through the oppositely arranged guiding plates and the flexible connecting member, a specific air flow field is formed during the guiding process of the hot air flow, better covering the surface of the gel, contributing to forming a more uniform and stable hot air flow distribution, further improving the drying uniformity, and reducing drying defects caused by uneven air flow.

[0021] The present invention is further configured as: a plurality of hollow rings are arranged in a stacked manner inside the drying box body, and a plurality of connecting pipes are communicated between adjacent two hollow rings. A taking and placing notch is arranged on the front side of the hollow ring.

[0022] With the above technical solution, the hollow ring is used for the distribution and transmission of the hot air flow, the connecting pipe realizes the air flow circulation between adjacent hollow rings, and the taking and placing notch facilitates the placement and removal of the gel.

[0023] The present invention is further configured as: the side of the contact rod away from the arc plate is semicircularly arranged, and a support rod is bolted to the bottom of the toothed plate, and the side of the support rod close to the drying disc is bolted thereto.

[0024] With the above technical solution, when the contact rod arranged in a semi-circular shape hits the surface of the gel, the damage to the gel is reduced, which not only effectively breaks the hard shell on the surface of the gel, but also avoids excessive damage to the gel structure during the wall-breaking process, ensuring the smooth progress of the drying process and the gel quality. The arrangement of the support rod ensures the stable connection of the toothed plate on the drying tray.

[0025] A method for preparing an energetic ceramic matrix composite gel by drying, comprising the following steps:

[0026] S1. Place the prepared energetic ceramic matrix composite gel on the elastic support assembly of the drying tray, adjust the supporting force of the bearing member, and drive the main shaft to rotate the drying tray through an externally connected driving device;

[0027] S2. While the drying tray is rotating, an externally connected hot air device passes hot air into the hollow ring, and the heat is blown to the gel through the guiding assembly. When the drying tray drives the elastic support assembly to move to the bottom guiding assembly, it will cause the elastic support member to generate micro-vibrations, and the gel is dried in a micro-vibrating state. The micro-vibrations accelerate the migration and discharge of solvent molecules inside the gel;

[0028] S3. When the drying tray rotates to the top guiding assembly, it will drive the wall-breaking assembly to contact the gel, break the hard shell formed on the surface of the gel, and enable the internal solvent to volatilize more quickly.

[0029] In summary, the present invention has the following beneficial effects:

[0030] 1. By setting the drying structure, the micro-vibrations of the elastic support assembly and the periodic breaking of the hard shell on the surface of the gel by the wall-breaking assembly, the dual effects accelerate the discharge of the solvent inside the gel. The micro-vibrations prompt the solvent molecules to migrate more actively, and the wall-breaking assembly breaks the barrier formed by the surface hard shell, enabling the internal solvent to volatilize smoothly, greatly shortening the drying time, improving the drying efficiency, and overcoming the drawback of slow solvent discharge in the static heating method;

[0031] 2. By setting the guiding assembly, the guiding assembly can adjust and change the heat distribution angle, and can accurately guide the hot air flow to specific parts of the gel on the drying tray according to the requirements in different stages of the drying process, solving the problem of uneven air flow distribution in the traditional hot air blowing. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 is the overall structural schematic diagram of the present invention;

[0033] Figure 2 is the connection schematic diagram of the drying structure, the hollow ring and the main shaft of the present invention;

[0034] Figure 3 is the connection schematic diagram of the elastic support assembly and the support plate of the present invention;

[0035] Figure 4 It is a schematic diagram of the connection between the carrier and the drying tray of the present invention;

[0036] Figure 5 It is a schematic diagram of the connection between the cell wall breaking component and the top guiding channel of the present invention;

[0037] Figure 6 It is a schematic structural diagram of the guiding component of the present invention;

[0038] Figure 7 It is a schematic flow diagram of the gel drying preparation method of the energetic ceramic matrix composite material of the present invention.

[0039] Reference numerals: 1, drying box body; 2, main shaft; 3, support plate; 4, drying mechanism; 41, drying tray; 42, elastic support component; 421, carrier; 421a, rubber pad; 421b, adjusting plate; 421c, adjusting bolt; 421d, adjusting spring; 422, elastic rod; 423, wedge block; 424, fixed block; 425, return spring; 43, cell wall breaking component; 431, rotating shaft; 432, return telescopic component; 433, arc plate; 434, contact rod; 435, connecting shaft; 436, gear; 437, rack; 5, hollow ring; 6, guiding component; 61, guiding channel; 62, guiding plate; 63, reciprocating lead screw; 64, internally threaded sleeve; 65, connecting rod; 7, connecting pipe; 8, support rod. Detailed implementation manners

[0040] The present invention will be further described in detail below with reference to the accompanying drawings.

[0041] Example 1:

[0042] Refer to Figures 1-5 , an energetic ceramic matrix composite gel drying structure, comprising a drying box body 1, the inside of the drying box body 1 is rotatably connected with a main shaft 2, and a plurality of support plates 3 are bolted annularly on the surface of the main shaft 2. A plurality of drying mechanisms 4 are sleeved on the surface of the main shaft 2, and one side of the support plate 3 close to the drying mechanism 4 is bolted thereto. A plurality of hollow rings 5 are bolted inside the drying box body 1, and the top and bottom of the inner wall of the hollow ring 5 are both communicated with a guiding component 6, and the guiding component 6 is used in cooperation with the drying structure 4;

[0043] The drying mechanism 4 includes a drying tray 41, one side of the drying tray 41 close to the support plate 3 is bolted thereto, an elastic support assembly 42 is annularly arranged inside the drying tray 41, one side of the elastic support assembly 42 close to the main shaft 2 is bolted thereto, and one side of the elastic support assembly 42 close to the bottom guiding assembly 6 is connected thereto. A wall-breaking assembly 43 is arranged on one side of the top guiding assembly 6 away from the inner wall of the hollow ring 5. By providing the drying structure 4, the micro-vibration of the elastic support assembly 42 and the periodic breaking of the hard shell on the surface of the gel by the wall-breaking assembly 43 accelerate the discharge of the solvent inside the gel through the dual action. The micro-vibration promotes the more active migration of the solvent molecules, while the wall-breaking assembly 43 breaks the barrier formed by the surface hard shell, enabling the internal solvent to volatilize smoothly, greatly shortening the drying time, improving the drying efficiency, and overcoming the drawback of slow solvent discharge in the static heating mode.

[0044] As Figure 3 shown, the elastic support assembly 42 includes a carrier 421, the carrier 421 is annularly arranged inside the drying tray 41, an elastic rod 422 is arranged at the bottom of the carrier 421, and one side of the elastic rod 422 close to the main shaft 2 is connected thereto. A wedge block 423 is in contact with the surface of the end of the elastic rod 422 away from the main shaft 2, and the wedge block 423 is connected to the bottom guiding assembly 6. A fixing block 424 is sleeved on the surface of the elastic rod 422, and a return spring 425 is arranged at the top of the fixing block 424, and the top of the return spring 425 is connected to the support plate 3. The elastic rod 422 and the carrier 421 are used in cooperation. By providing the elastic support assembly 42, when the drying tray 41 drives the elastic support assembly 42 to move to the bottom guiding assembly 6, the elastic rod 422 will contact the bottom surface of the wedge block 423. Since the bottom of the wedge block 423 is inclined, the elastic rod 422 will gradually bend and deform along the bottom of the wedge block 423, driving the fixing block 424 and the return spring 425 to stretch. When the elastic rod 422 separates from the wedge block 423, using the self-elasticity of the elastic rod 422 and the return spring 425, the end of the elastic rod 422 away from the main shaft 2 can generate vibrations up and down, and transmit the vibrations to the carrier 421, so that the carrier 421 vibrates up and down. Therefore, the vibration of the carrier 421 promotes the migration of the solvent molecules inside the gel, improving the drying efficiency. At the same time, the return spring 425 and the fixing block 424 ensure the stability and periodicity of the vibration, avoiding excessive impact on the gel.

[0045] As Figure 4As shown, the carrier 421 includes a rubber pad 421a. The rubber pad 421a is movably arranged at the top inside the drying tray 41. A regulating plate 421b is arranged at the bottom of the rubber pad 421a. A plurality of regulating bolts 421c are rotatably connected to the bottom of the regulating plate 421b. The bottom of the regulating bolts 421c extends to the bottom of the drying tray 41, and the regulating bolts 421c are threadedly connected to the drying tray 41. Regulating springs 421d are arranged at the top of both the regulating plate 421b and the rubber pad 421a. One side of the regulating springs 421d close to the rubber pad 421a and the inner wall of the drying tray 41 is connected to the two respectively. By setting the carrier 421, by rotating the regulating bolts 421c, the heights of the regulating plate 421b and the rubber pad 421a can be changed. The regulating springs 421d provide buffering and adaptive support. During the drying process, by adjusting the tightness of the regulating springs 421d, the gel is dried under a micro-vibration state. The micro-vibration helps the migration and discharge of solvent molecules inside the gel, improving the drying efficiency. At the same time, the elastic support can avoid damaging the gel due to vibration.

[0046] As Figure 3 and Figure 4 shown, a plurality of limiting cavities are annularly arranged inside the drying tray 41. Both the regulating plate 421b and the rubber pad 421a are movably arranged inside the limiting cavities. An activity notch for cooperating with the elastic rod 422 is arranged at the bottom of the regulating plate 421b. The movement ranges of the regulating plate 421b and the rubber pad 421a are restricted by the limiting cavities to ensure their stable operation, and the activity notch provides space for the movement of the elastic rod 422.

[0047] As Figure 5 shown, the cell wall breaking assembly 43 includes a rotating shaft 431. The rotating shaft 431 is above the carrier 421. A plurality of reset telescopic members 432 are annularly arranged on the surface of the rotating shaft 431. An arc-shaped plate 433 is bolted to the side of the reset telescopic member 432 away from the rotating shaft 431. A plurality of contact rods 434 are bolted to the side of the arc-shaped plate 433 away from the reset telescopic member 432. A connecting shaft 435 is bolted to the side of the rotating shaft 431 close to the inner wall of the hollow ring 5. A gear 436 is sleeved on the surface of the connecting shaft 435. A toothed plate 437 is meshed and connected to the bottom of the gear 436. The toothed plate 437 is connected to the drying tray 41. By setting the cell wall breaking assembly 43, when the drying tray 41 drives the toothed plate 437 to move to the gear 436, the toothed plate 437 will be meshed with the gear 436 and drive the gear 436 to rotate. The gear 436 synchronously drives the rotating shaft 431 to rotate through the connecting shaft 435. The reset telescopic members 432 drive the arc-shaped plate 433 and the contact rods 434 to periodically contact the surface of the gel, which can effectively break the hard shell formed on the surface of the gel, accelerate the volatilization of the internal solvent, shorten the drying time, improve the drying quality, and solve the problem that the surface hard shell hinders the discharge of the solvent during the traditional drying process.

[0048] AsFigure 5 As shown, the side of the contact rod 434 away from the arc plate 433 is semi-circularly arranged. A support rod 8 is bolted to the bottom of the toothed plate 437, and the side of the support rod 8 close to the drying tray 41 is bolted to it. When the semi-circularly arranged contact rod 434 impacts the surface of the gel, the damage to the gel is reduced, effectively breaking the hard shell on the surface of the gel, avoiding excessive damage to the gel structure during the wall-breaking process, ensuring the smooth progress of the drying process and the quality of the gel, and the setting of the support rod 8 ensures the stable connection of the toothed plate 437 to the drying tray 41.

[0049] Brief description of the usage process: The drying tray 41 rotates with the main shaft 2. When it moves to the position of the bottom guiding assembly 6, since the bottom of the wedge block 423 is inclined, the elastic rod 422 is squeezed and bends along the inclined surface, and at the same time drives the fixed block 424 to move downward, stretching the return spring 425. When the elastic rod 422 rotates away from the wedge block 423 with the drying tray 41, the elastic rod 422 relies on its own elasticity and the elasticity of the return spring 425 to cause the end away from the main shaft 2 to vibrate up and down, and transmits the vibration to the bearing member 421. The adjusting plate 421b and the rubber pad 421a in the bearing member 421 vibrate accordingly, promoting the migration of solvent molecules inside the gel. During this process, the height of the adjusting plate 421b and the rubber pad 421a can be changed by rotating the adjusting bolt 421c, and the tightness of the adjusting spring 421d can be adjusted to further optimize the promotion of vibration on gel drying. The adjusting plate 421b and the rubber pad 421a vibrate stably under the restriction of the limiting cavity. The movable notch provides necessary space for the movement of the elastic rod 422. As the drying tray 41 continues to rotate, it drives the toothed plate 437 connected to it to move. When the toothed plate 437 moves to the meshing position with the gear 436, the toothed plate 437 drives the gear 436 to rotate. The gear 436 synchronously drives the rotating shaft 431 to rotate through the connecting shaft 435. The reset telescopic member 432 installed on the surface of the rotating shaft 431 rotates accordingly. The reset telescopic member 432 drives the arc plate 433 and the contact rod 434 bolted to the arc plate 433 to make a circular motion. The contact rod 434 periodically contacts the surface of the gel, and uses the semi-circularly arranged end to impact and break the hard shell on the surface of the gel, accelerating the volatilization of the solvent inside the gel.

[0050] Example 2:

[0051] Reference Figure 1 、 Figure 6, including a drying box body 1, a main shaft 2 is rotatably connected inside the drying box body 1, and a number of support plates 3 are bolted annularly on the surface of the main shaft 2. A number of drying mechanisms 4 are sleeved on the surface of the main shaft 2, and one side of the support plate 3 close to the drying mechanism 4 is bolted to it. A number of hollow rings 5 are bolted inside the drying box body 1, and guiding components 6 are communicated with both the top and bottom of the inner wall of the hollow ring 5. The guiding component 6 is used in cooperation with the drying structure 4. By the guiding component 6, the heat distribution angle can be adjusted and changed, and the hot air flow can be accurately guided to a specific part of the gel on the drying tray 41 according to the requirements in different stages of the drying process, solving the problem of uneven air flow distribution in traditional hot air blowing.

[0052] As Figure 6 shown, the guiding component 6 includes a guiding channel 61, one side of the guiding channel 61 close to the hollow ring 5 is connected to it. A guiding plate 62 is rotatably connected inside the guiding channel 61. A reciprocating lead screw 63 is rotatably connected to the inner wall of the guiding channel 61, and an internally threaded sleeve 64 is threadedly connected to the surface of the reciprocating lead screw 63. One side of the internally threaded sleeve 64 close to the guiding plate 62 is rotatably connected to a connecting rod 65, and one side of the connecting rod 65 close to the guiding plate 62 is rotatably connected to it. By setting the guiding component 6, the reciprocating lead screw 63 is driven to rotate by an externally connected motor, the internally threaded sleeve 64 moves on the reciprocating lead screw 63, and the guiding plate 62 is driven by the connecting rod 65 to change the angle, thereby guiding the direction of the hot air flow. The direction of the hot air flow can be flexibly adjusted according to the drying requirements, improving the utilization efficiency of the hot air flow and the drying uniformity, and adapting to the drying requirements of gels with different shapes and drying stages.

[0053] As Figure 6 shown, the two guiding plates 62 at the top and bottom are arranged oppositely, and the guiding plate 62 is connected to the inner wall of the guiding channel 61 through a flexible connecting piece. Through the oppositely arranged guiding plates 62 and the flexible connecting piece, a specific air flow field is formed during the guiding process of the hot air flow, better covering the surface of the gel, contributing to forming a more uniform and stable hot air flow distribution, further improving the drying uniformity, and reducing drying defects caused by uneven air flow.

[0054] As Figure 2 shown, a number of hollow rings 5 are arranged in a stacked manner inside the drying box body 1, and a number of connecting pipes 7 are communicated between adjacent two hollow rings 5. A placement and removal notch is arranged on the front side of the hollow ring 5. The hollow ring 5 is used for the distribution and transmission of the hot air flow, the connecting pipe 7 realizes the air flow circulation between adjacent hollow rings 5, and the placement and removal notch facilitates the placement and removal of the gel.

[0055] Brief description of the usage process: The external motor starts, driving the reciprocating screw 63 on the inner wall of the guiding channel 61 to rotate. The internally threaded sleeve 64 threadedly connected to the surface of the reciprocating screw 63 moves linearly along the reciprocating screw 63 when the reciprocating screw 63 rotates. The internally threaded sleeve 64 is rotatably connected to the guiding plate 62 through the connecting rod 65. The linear movement of the internally threaded sleeve 64 drives the connecting rod 65 to move, thereby causing the guiding plate 62 to change its angle around its rotation point in the guiding channel 61. After the hot air flow enters the guiding channel 61 from the hollow ring 5, its flow direction is changed under the guidance of the guiding plate 62 and is accurately guided to the specific part of the gel on the drying plate 41. The guiding plates 62 arranged oppositely at the top and bottom and connected to the inner wall of the guiding channel 61 through flexible connectors form a specific and uniform air flow field during the guiding process of the hot air flow, better covering the surface of the gel. The several hollow rings 5 arranged in a stacked manner in the drying box 1 are responsible for the distribution and transmission of the hot air flow. After the hot air flow enters the uppermost hollow ring 5, it flows sequentially to the lower-layer hollow rings 5 through the connecting pipes 7 communicating between adjacent hollow rings 5, realizing the uniform distribution of the hot air flow in the entire drying box 1 and providing a stable source of hot air flow for the guiding assembly 6. At the same time, the placing and removing notch on the front side of the hollow ring 5 facilitates the operator to place and remove the gel to be dried.

[0056] As Figure 7 shown, the present invention also provides a method for drying and preparing an energetic ceramic matrix composite gel by the gel method, including the following steps:

[0057] S1. Place the prepared energetic ceramic matrix composite gel on the elastic support assembly 42 of the drying plate 41, adjust the supporting force of the bearing member 421, and drive the main shaft 2 to rotate the drying plate 41 through an external driving device.

[0058] S2. While the drying plate 41 is rotating, an external hot air device passes hot air into the hollow ring 5, and the heat is blown to the gel through the guiding assembly 6. When the drying plate 41 drives the elastic support assembly 42 to move to the bottom guiding assembly 6, it will cause the elastic support member to generate micro-vibrations, enabling the gel to be dried in a micro-vibrating state. The micro-vibrations accelerate the migration and discharge of the solvent molecules inside the gel.

[0059] S3. When the drying plate 41 rotates to the top guiding assembly 6, it will drive the wall-breaking assembly 43 to contact the gel, damaging the hard shell formed on the surface of the gel so that the internal solvent can volatilize more quickly.

[0060] This specific embodiment is only an explanation of the present invention and is not a limitation thereof. Those skilled in the art can make modifications to this embodiment without creative contributions according to needs after reading this specification, but as long as it is within the scope of the claims of the present invention, it is protected by the patent law.

Claims

1. A gel drying structure of an energetic ceramic matrix composite material, comprising a drying box body (1), characterized in that: A main shaft (2) is rotatably connected inside the drying box body (1), and a plurality of support plates (3) are bolted annularly on the surface of the main shaft (2). A plurality of drying mechanisms (4) are sleeved on the surface of the main shaft (2), and one side of the support plate (3) close to the drying mechanism (4) is bolted thereto. A plurality of hollow rings (5) are bolted inside the drying box body (1), and guiding components (6) are communicated with both the top and the bottom of the inner wall of the hollow ring (5). The guiding components (6) are used in cooperation with the drying structure (4). The drying mechanism (4) includes a drying disc (41). One side of the drying disc (41) close to the support plate (3) is bolted thereto. An elastic support component (42) is annularly arranged inside the drying disc (41). One side of the elastic support component (42) close to the main shaft (2) is bolted thereto, and one side of the elastic support component (42) close to the bottom guiding component (6) is connected thereto. A wall-breaking component (43) is arranged on one side of the top guiding component (6) away from the inner wall of the hollow ring (5).

2. The drying structure of the energetic ceramic matrix composite material by the sol-gel method according to claim 1, characterized in that: The elastic support component (42) includes a bearing member (421). The bearing member (421) is annularly arranged inside the drying disc (41). An elastic rod (422) is arranged at the bottom of the bearing member (421). One side of the elastic rod (422) close to the main shaft (2) is connected thereto. A wedge-shaped block (423) is in contact with the surface of one end of the elastic rod (422) away from the main shaft (2), and the wedge-shaped block (423) is connected to the bottom guiding component (6). A fixing block (424) is sleeved on the surface of the elastic rod (422), and a return spring (425) is arranged at the top of the fixing block (424). The top of the return spring (425) is connected to the support plate (3). The elastic rod (422) is used in cooperation with the bearing member (421).

3. The drying structure of the energetic ceramic matrix composite material by the sol-gel method according to claim 2, wherein: The bearing member (421) includes a rubber pad (421a). The rubber pad (421a) is movably arranged at the top inside the drying disc (41). An adjusting plate (421b) is arranged at the bottom of the rubber pad (421a). A plurality of adjusting bolts (421c) are rotatably connected to the bottom of the adjusting plate (421b). The bottom of the adjusting bolts (421c) extends to the bottom of the drying disc (41), and the adjusting bolts (421c) are in threaded connection with the drying disc (41). Adjusting springs (421d) are arranged at the tops of both the adjusting plate (421b) and the rubber pad (421a), and one sides of the adjusting springs (421d) close to the rubber pad (421a) and the inner wall of the drying disc (41) are connected to the two respectively.

4. The drying structure of the energetic ceramic matrix composite material by the sol-gel method according to claim 3, wherein: A plurality of limiting cavities are annularly formed inside the drying disc (41), and both the adjusting plate (421b) and the rubber pad (421a) are movably arranged inside the limiting cavities. An activity notch for cooperating with the elastic rod (422) is formed at the bottom of the adjusting plate (421b).

5. The drying structure of an energetic ceramic matrix composite by the sol-gel method according to claim 2, characterized in that: The wall-breaking assembly (43) includes a rotating shaft (431). The rotating shaft (431) is located above the bearing member (421), and a number of reset telescopic members (432) are annularly arranged on the surface of the rotating shaft (431). One side of the reset telescopic member (432) away from the rotating shaft (431) is bolted with an arc-shaped plate (433). A number of contact rods (434) are bolted on one side of the arc-shaped plate (433) away from the reset telescopic member (432). One side of the rotating shaft (431) close to the inner wall of the hollow ring (5) is bolted with a connecting shaft (435), and a gear (436) is sleeved on the surface of the connecting shaft (435). The bottom of the gear (436) is meshed with a toothed plate (437), and the toothed plate (437) is connected to the drying tray (41).

6. The drying structure of the energetic ceramic matrix composite by the sol-gel method according to claim 1, characterized in that: The guiding assembly (6) includes a guiding channel (61). One side of the guiding channel (61) close to the hollow ring (5) is connected to it. A guiding plate (62) is rotatably connected inside the guiding channel (61). A reciprocating lead screw (63) is rotatably connected to the inner wall of the guiding channel (61), and an internally threaded sleeve (64) is threadedly connected to the surface of the reciprocating lead screw (63). One side of the internally threaded sleeve (64) close to the guiding plate (62) is rotatably connected to a connecting rod (65), and one side of the connecting rod (65) close to the guiding plate (62) is rotatably connected to it.

7. The drying structure of the energetic ceramic matrix composite material by the sol-gel method according to claim 6, wherein: The two guiding plates (62) at the top and bottom are arranged oppositely, and the guiding plate (62) is connected to the inner wall of the guiding channel (61) through a flexible connecting member.

8. The drying structure of an energetic ceramic matrix composite material by the sol-gel method according to claim 1, characterized in that: A number of hollow rings (5) are stacked inside the drying box body (1), and a number of connecting pipes (7) are communicated between adjacent two hollow rings (5). A taking and placing notch is arranged on the front side of the hollow ring (5).

9. A gel drying structure of an energetic ceramic matrix composite according to claim 5, characterized in that: One side of the contact rod (434) away from the arc-shaped plate (433) is semicircularly arranged. A support rod (8) is bolted to the bottom of the toothed plate (437), and one side of the support rod (8) close to the drying tray (41) is bolted to it.

10. A method for preparing an energetic ceramic matrix composite by gel drying according to any one of claims 1-9, characterized in that: It includes the following steps: S1. Place the prepared energetic ceramic matrix composite gel on the elastic support assembly (42) of the drying tray (41), adjust the supporting force of the bearing member (421), and drive the main shaft (2) through an external driving device to rotate the drying tray (41). S2. While the drying tray (41) is rotating, an external hot air device passes hot air into the hollow ring (5), and the heat is blown to the gel through the guiding assembly (6). When the drying tray (41) drives the elastic support assembly (42) to move to the bottom guiding assembly (6), it will cause the elastic support to generate micro-vibrations, and the gel is dried in a micro-vibrating state. The micro-vibrations accelerate the migration and discharge of solvent molecules inside the gel. S3. When the drying tray (41) rotates to the top guiding assembly (6), it will drive the wall-breaking assembly (43) to contact the gel, break the hard shell formed on the surface of the gel, and enable the internal solvent to volatilize more quickly.

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