Sealed drying device and using method thereof
By designing a sealed drying device and utilizing a flip plate, impact beads, and temperature control components, the problems of agglomeration, wall sticking, and heat sensitivity compatibility in the drying process of powdered materials are solved, achieving efficient and uniform drying results.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-17
- Publication Date
- 2026-03-13
AI Technical Summary
Existing drying equipment suffers from problems such as powdered materials caking, adhering to the tank wall, incomplete drying, low efficiency, poor uniformity, and difficulty in adapting to heat-sensitive powders.
A sealed drying device was designed, comprising a tilting plate, a ball bearing, blades, and a temperature control component. The rotation of the drying tank, the tilting plate causing the material to tumble, and the ball bearing causing the tank wall to vibrate, combined with the relative movement of the fixed blades and the material, along with the temperature control component, achieve uniform heating, avoid local overheating, and ensure sealing.
It improves drying efficiency and uniformity, is suitable for heat-sensitive and easily agglomerated powders, reduces material loss and cleaning costs, and avoids the phenomenon of "dry outside and wet inside".
Smart Images
Figure CN121655231A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of drying technology, and in particular to a sealed drying device and its method of use. Background Technology
[0002] In the pharmaceutical, food, and chemical industries, drying powdered materials such as traditional Chinese medicine intermediates and food additives is a critical step in production. The core requirement is to ensure the purity and activity of the materials while achieving efficient and uniform dehydration, avoiding clumping, sticking to the walls, and deterioration of heat-sensitive components. However, traditional drying equipment has significant limitations: static ovens rely on hot air circulation, and material accumulation easily results in "dry outside and wet inside," leading to long drying cycles and low efficiency; while ordinary rotary dryers can turn the materials, they lack targeted crushing structures, making it easy for high-moisture powders to agglomerate and for materials to stick to the tank walls, causing losses and increasing cleaning costs; some devices also suffer from insufficient sealing and low temperature control accuracy, allowing external moisture to easily seep in, resulting in "drying while absorbing moisture," and are difficult to adapt to heat-sensitive powders, easily leading to component deactivation and carbonization due to localized overheating. Summary of the Invention
[0003] The purpose of this invention is to at least solve one of the technical problems existing in the prior art, and to provide a sealed drying device and its usage method, which solves the problems that easily occur when drying powdery materials, such as agglomeration leading to incomplete drying, material adhering to the tank wall causing loss and cleaning trouble, uneven heating with dead corners, low drying efficiency and poor uniformity, and difficulty in adapting to heat-sensitive and easily agglomerated powders.
[0004] The present invention also provides a sealed drying device as described above, comprising: a base frame, a left support plate and a right support plate fixedly connected to the upper surface of the base frame, a support shaft fixedly connected to the right surface of the left support plate, a blade provided on the side surface of the support shaft, a drying tank rotatably connected to the right surface of the left support plate, a base fixedly connected to the right surface of the drying tank, the base rotatably connected to the left surface of the right support plate, a mounting plate fixedly connected to the lower surface of the base frame, a motor fixedly connected to the left surface of the mounting plate, a rotating shaft fixedly connected to the output end of the motor, and a gear fixedly connected to the side surface of the rotating shaft; a temperature control component provided on the right surface of the drying tank, the temperature control component consisting of a temperature sensor, a controller, a relay, and a heating wire; a sealing plug provided on the side surface of the drying tank; a toothed ring provided on the side surface of the drying tank; a flipping plate fixedly connected to the inner side wall of the drying tank; a movable groove provided inside the flipping plate; and a striking ball provided inside the movable groove. This device is beneficial for improving drying efficiency and uniformity, and is suitable for heat-sensitive and easily agglomerated powders.
[0005] According to the sealed drying device of the present invention, the heating wire is fixedly connected to the output end of the relay, and the interior of the drying tank is provided with a cavity. Through the above device, it is beneficial for the relay to receive the controller command and accurately control the on and off of the heating wire, and the cavity can make the heat of the heating wire evenly conducted into the drying tank.
[0006] According to the sealed drying device of the present invention, the heating wire penetrates the right surface of the drying tank and is located inside the cavity. The above device is beneficial to the stable heating of the heating wire inside the cavity, avoiding direct contact with the material and causing local overheating and deterioration; at the same time, the cavity can make the heat evenly conduct to the inner wall of the drying tank and then diffuse to the material inside the tank, ensuring a balanced temperature distribution inside the tank.
[0007] According to the sealed drying device of the present invention, a support column is fixedly connected to the lower surface of the base frame, and a switch is fixedly connected to the lower bottom wall of the mounting plate. The above devices help to stably support the base frame, prevent shaking due to vibration during device operation, and ensure smooth rotation of the drying tank. At the same time, it facilitates the control of the main power supply of the device, realizes the overall start and stop of the motor and temperature control components, is simple to operate, and can cut off the power supply in time, improving the safety and convenience of the device.
[0008] According to the sealed drying device of the present invention, the rotating shaft passes through the left surface of the mounting plate and extends to the right inner wall of the mounting plate. The above device is beneficial to provide the rotating shaft with support at both ends in the mounting plate, avoiding shaking and displacement during operation caused by fixing only one side, and ensuring the stable rotation of its transmission gear.
[0009] According to the sealed drying device of the present invention, the gear is located inside the mounting plate and meshes with the gear ring to rotate. The above device helps to prevent accidental injury to the operator when the gear rotates, thereby improving safety. At the same time, it stably converts the motor power into the rotational motion of the drying tank, ensuring that the rotational speed of the drying tank is uniform. It provides stable power support for the flipping plate to flip the material and for the blades to form a stable relative motion with the material, thus ensuring that the material drying process proceeds in an orderly manner.
[0010] According to the sealed drying device of the present invention, the support shaft passes through the left surface of the drying tank, and the support shaft and the blade are located inside the drying tank. The above device helps the support shaft to provide a stable static mounting base for the blade, so that the blade and the rotating drying tank form a stable relative motion, ensuring continuous crushing of the material.
[0011] According to the sealed drying device of the present invention, a sealing plate is provided at the connection between the left inner wall of the drying tank and the support shaft. The interior of the drying tank is lower in the middle and higher on both sides. Through the above device, the sealing plate can seal the gap between the shaft and the tank wall, prevent the leakage of hot air inside the tank or the intrusion of external moisture, and ensure a sealed drying environment. The structure of being lower in the middle and higher on both sides can guide the material to gather towards the center.
[0012] A method of using a sealed drying device includes the following steps: Step 1: Open the sealing plug and load the pretreated powder into the drying tank (the loading amount should not exceed 2 / 3 of the tank volume to avoid material overflow during rotation), close the sealing plug and tighten the seal; Step 2: Start the motor with the operating switch. The motor drives the rotating shaft and gears to rotate, which in turn drives the drying tank to rotate smoothly through the gear ring. The operating switch automatically starts the temperature control program of the controller: the temperature sensor monitors the temperature inside the tank. If it is lower than the target value, the controller commands the relay to engage, and the heating wire is energized to heat the tank. The heat is transferred to the inside of the tank through the cavity to carry out drying. Step 3: After the set drying time is reached, the controller will automatically stop the heating wire and keep the motor running for 5-10 minutes (to allow the material to continue circulating and cool evenly). Turn off the switch to shut off the motor and wait for the drying tank to cool naturally to room temperature (to avoid "secondary moisture absorption" caused by external moisture coming into contact with hot material when the sealing cap is opened at high temperature). Step 4: After confirming that the drying tank has completely cooled down, open the sealing plug and take out the dried powder from the tank (you can take advantage of the "lower middle" structure of the drying tank by rotating the sealing plug to the bottom of the tank to allow the powder to collect and flow out naturally).
[0013] Beneficial effects: The sealed drying device and its usage method of this technical solution, through the rotation of the drying tank, the flipping plate drives the material to flip, and the action of the impact ball causes the tank wall to vibrate. Combined with the relative movement of the fixed blade and the material, it can powerfully break up clumps, avoid "dry outside and wet inside", reduce material adhesion to the tank wall, reduce losses and cleaning costs. At the same time, it promotes material circulation to eliminate heat dead zones, increase the specific surface area and accelerate heat exchange, which is beneficial to improve drying efficiency and uniformity, and is suitable for heat-sensitive and easily clumped powders. Attached Figure Description
[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments; Figure 1 This is a three-dimensional structural diagram of the sealed drying device and its usage method of the present invention; Figure 2 This is a bottom view of the sealed drying device and its usage method of the present invention. Figure 3This is an internal structural diagram of the sealed drying device and its usage method of the present invention; Figure 4 This is a cross-sectional structural diagram of the sealed drying device and its usage method of the present invention.
[0015] Legend: 1. Drying tank; 2. Sealing plug; 3. Gear ring; 4. Base; 5. Base frame; 6. Support column; 7. Mounting plate; 8. Switch; 9. Motor; 10. Left support plate; 11. Right support plate; 12. Cavity; 13. Heating wire; 14. Temperature sensor; 15. Controller; 16. Relay; 17. Support shaft; 18. Blade; 19. Flip plate; 20. Movable groove; 21. Impact ball; 22. Rotating shaft; 23. Gear; 24. Sealing plate. Detailed Implementation
[0016] This section will describe in detail specific embodiments of the present invention. Preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and overall technical solution of the present invention, but they should not be construed as limiting the scope of protection of the present invention.
[0017] Reference Figure 1-4 This invention discloses a sealed drying device and its usage method, comprising: a base frame 5, a left support plate 10 and a right support plate 11 fixedly connected to the upper surface of the base frame 5, a support shaft 17 fixedly connected to the right surface of the left support plate 10, a blade 18 disposed on the side surface of the support shaft 17, a drying tank 1 rotatably connected to the right surface of the left support plate 10, the support shaft 17 penetrating the left surface of the drying tank 1, the support shaft 17 and the blade 18 located inside the drying tank 1, a sealing plate 24 disposed at the connection between the left inner wall of the drying tank 1 and the support shaft 17, and the middle of the interior of the drying tank 1. The drying tank 1 is low on both sides and high on both sides. A base 4 is fixedly connected to the right surface of the drying tank 1. The base 4 is rotatably connected to the left surface of the right support plate 11. A mounting plate 7 is fixedly connected to the lower surface of the base frame 5. A switch 8 is fixedly connected to the lower bottom wall of the mounting plate 7. A motor 9 is fixedly connected to the left surface of the mounting plate 7. A rotating shaft 22 is fixedly connected to the output end of the motor 9. The rotating shaft 22 passes through the left surface of the mounting plate 7 and extends to the right inner wall of the mounting plate 7. A gear 23 is fixedly connected to the side surface of the rotating shaft 22. The gear 23 is located inside the mounting plate 7. A support column 6 is fixedly connected to the lower surface of the base frame 5. A temperature control assembly is provided on the right surface of the drying tank 1. The temperature control assembly consists of a temperature sensor 14, a controller 15, a relay 16, and a heating wire 13. The heating wire 13 is fixedly connected to the output terminal of the relay 16. A cavity 12 is provided inside the drying tank 1. The heating wire 13 passes through the right surface of the drying tank 1 and is located inside the cavity 12. A sealing plug 2 is provided on the side surface of the drying tank 1. A toothed ring 3 is provided on the side surface of the drying tank 1. A gear 23 meshes with the toothed ring 3 and rotates. A flip plate 19 is fixedly connected to the inner side wall of the drying tank 1. A movable groove 20 is provided inside the flip plate 19. A ball bearing 21 is provided inside the movable groove 20.
[0018] The method of using the sealed drying device of the present invention includes the following steps: Step 1: Open the sealing plug 2, load the pretreated powder into the drying tank 1 (the loading amount should not exceed 2 / 3 of the tank volume to avoid material overflow during rotation), close the sealing plug 2 and tighten the seal; Step 2: Operate switch 8 to start motor 9. Motor 9 drives rotating shaft 22 and gear 23 to rotate. Through gear ring 3, it drives drying tank 1 to rotate smoothly. Operate switch 8 automatically starts the temperature control program of controller 15: temperature sensor 14 monitors the temperature inside the tank. If it is lower than the target value, controller 15 instructs relay 16 to engage, and heating wire 13 is energized to heat. Heat is transferred to the inside of the tank through cavity 12. Step 3: After the set drying time is reached, the controller 15 automatically stops the heating wire 13 and keeps the motor running for 5 to 10 minutes (to allow the material to continue circulating and cool evenly). The switch 8 is turned off to shut off the motor 9, and the drying tank 1 is allowed to cool naturally to room temperature (to avoid "secondary moisture absorption" caused by external moisture coming into contact with hot material when the sealing plug is opened at high temperature). Step 4: After confirming that the drying tank 1 has completely cooled down, open the sealing plug 2 and take out the dried powder from the tank (you can take advantage of the "low in the middle" structure of the drying tank 1 to rotate the sealed opening of the tank 2 to the bottom, so that the powder can be naturally collected and flowed out).
[0019] Specifically, the support and fixing structure is as follows: the base frame 5 serves as the overall basic frame of the device, fixing the left support plate 10, the right support plate 11, and the mounting plate 7 to ensure the stability of each component. The left support plate 10 fixes the support shaft 17 and rotatably connects to the drying tank 1. The right support plate 11 supports the right end of the drying tank through the base 4, jointly ensuring the smooth rotation of the drying tank 1. The pillar 6 supports the base frame 5, improving the overall stability of the device and preventing shaking during operation. The base 4 connects the right end of the drying tank 1 to the right support plate 11, realizing the rotational support of the right end of the drying tank 1 and balancing the force on the tank body. The mounting plate 7 fixes the motor 9, the switch 8, and the rotating shaft 22, providing installation space for the power transmission components. Power transmission structure: Motor 9 serves as the power source. When powered on, it drives the rotating shaft 22 to rotate. The rotating shaft 22 transmits the power of motor 9, which drives the side surface gear 23 to rotate synchronously. The gear 23 meshes with the toothed ring 3 on the side surface of the drying tank 1, converting the power of motor 9 into the rotational motion of the drying tank 1. At the same time, switch 8 controls the main power supply of the device to switch on and off, starting and stopping the overall operation. Drying Structure: The drying tank 1 serves as a sealed space for material drying. Its internal "low in the middle and high on both sides" design guides the material to converge towards the center. The support shaft 17 is fixed to the right surface of the left support plate 10 and extends through the interior of the drying tank 1, providing a static mounting carrier for the blade 18. The blade 18 is fixed to the support shaft 17. When the drying tank 1 rotates, it generates relative motion with the material to break up clumps. The flipping plate 19 is fixed to the inner side wall of the drying tank 1 and rotates with the tank to flip the material. The movable groove 20 is set inside the flipping plate 19. The impact ball 21 generates inertial vibration in the movable groove 20 as the tank rotates, causing slight vibration of the tank wall to assist in breaking up the material and reducing adhesion to the wall. The sealing plate 24 seals the connection between the drying tank 1 and the support shaft 17 to prevent moisture leakage inside the tank or external moisture infiltration. Temperature control structure: The heating wire 13 is located inside the cavity 12 of the drying tank. It heats up after being energized and conducts heat into the tank through the cavity 12 to heat the material. The temperature sensor 14 monitors the temperature inside the drying tank 1 in real time and transmits a signal to the controller 15. The controller 15 compares the preset temperature with the real-time temperature and sends an on / off command to the relay 16. It is controlled by the switch 8. The relay 16 receives the command from the controller 15 and controls the on / off of the heating wire 13 to achieve precise temperature control. The cavity 12 accommodates the heating wire 13 and conducts heat evenly to the inner wall of the drying tank 1, avoiding the heating wire 13 from directly contacting the material and causing local overheating. Sealing mechanism: The sealing plug 2 seals the opening on the side surface of the drying tank 1, isolating external moisture and maintaining a sealed and dry environment inside the tank. The sealing plate 24 seals the connection between the drying tank and the support shaft 17, ensuring the airtightness of the tank.
[0020] Working principle: When switch 8 is turned on, motor 9 starts and drives rotating shaft 22 and gear 23 to rotate. Gear 23 meshes with gear ring 3, thereby driving drying tank 1 to rotate around support shaft 17 and base 4. When drying tank 1 rotates, the tilting plate 19 on the inner wall causes the material to tilt. The impact ball 21 in the movable groove 20 vibrates due to inertia, causing the tank wall to vibrate, reducing material adhesion to the tank wall. At the same time, the blade 18 fixed on support shaft 17 generates relative motion with the rotating material, which can not only strongly break up clumps, but also push the material to form " The "can wall-center" circulation eliminates heating dead zones. The temperature control components operate synchronously under the overall control of switch 8. Temperature sensor 14 monitors the temperature inside the can in real time. Based on the monitoring data, controller 15 controls the on / off state of heating wire 13 in cavity 12 via relay 16 to maintain the target temperature inside the can. Sealing plug 2 and sealing plate 24 ensure the can is sealed, preventing moisture from entering or leaving. Ultimately, the material is efficiently heated and dried evenly in a sealed environment, which is suitable for heat-sensitive and easily agglomerated powders, avoiding "dry outside and wet inside" and reducing material loss.
[0021] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.
Claims
1. A sealed drying device, characterized in that, include: A base frame (5) has a left support plate (10) and a right support plate (11) fixedly connected to its upper surface. A support shaft (17) is fixedly connected to the right surface of the left support plate (10). A blade (18) is provided on the side surface of the support shaft (17). A drying tank (1) is rotatably connected to the right surface of the left support plate (10). A base (4) is fixedly connected to the right surface of the drying tank (1). The base (4) is rotatably connected to the left surface of the right support plate (11). A mounting plate (7) is fixedly connected to the lower surface of the base frame (5). A motor (9) is fixedly connected to the left surface of the mounting plate (7). A rotating shaft (22) is fixedly connected to the output end of the motor (9). A gear (23) is fixedly connected to the side surface of the rotating shaft (22). A temperature control component is provided on the right surface of the drying tank (1). The temperature control component consists of a temperature sensor (14), a controller (15), a relay (16), and a heating wire (13). A sealing plug (2) is provided on the side surface of the drying tank (1). A toothed ring (3) is provided on the side surface of the drying tank (1). A flip plate (19) is fixedly connected to the inner side wall of the drying tank (1). An active groove (20) is provided inside the flip plate (19). A ball bearing (21) is provided inside the active groove (20).
2. The sealed drying device according to claim 1, characterized in that, The heating wire (13) is fixedly connected to the output end of the relay (16), and the interior of the drying tank (1) is provided with a cavity (12).
3. A sealed drying device according to claim 2, characterized in that, The heating wire (13) penetrates the right surface of the drying tank (1) and is located inside the cavity (12).
4. A sealed drying device according to claim 1, characterized in that, The lower surface of the base frame (5) is fixedly connected to a support column (6), and the lower bottom wall of the mounting plate (7) is fixedly connected to a switch (8).
5. A sealed drying device according to claim 1, characterized in that, The rotating shaft (22) passes through the left surface of the mounting plate (7) and extends to the right inner wall of the mounting plate (7).
6. A sealed drying device according to claim 1, characterized in that, The gear (23) is located inside the mounting plate (7) and meshes with the gear ring (3) to rotate.
7. A sealed drying device according to claim 1, characterized in that, The support shaft (17) extends through the left surface of the drying tank (1), and the support shaft (17) and the blade (18) are located inside the drying tank (1).
8. A sealed drying device according to claim 1, characterized in that, A sealing plate (24) is provided at the connection between the left inner wall of the drying tank (1) and the support shaft (17). The interior of the drying tank (1) is low in the middle and high on both sides.
9. A method of using a sealed drying device, characterized in that, Includes the following steps: Step 1: Open the sealing plug (2), put the pretreated powder into the drying tank (1), close the sealing plug (2) and tighten the seal; Step 2: Start the motor (9) with the operation switch. The motor (9) drives the rotating shaft (22) and gear (23) to rotate. The gear ring (3) drives the drying tank (1) to rotate smoothly. The operation switch (8) automatically starts the temperature control program of the controller (15): the temperature sensor (14) monitors the temperature inside the tank. If it is lower than the target value, the controller (15) instructs the relay (16) to engage, and the heating wire (13) is energized to heat. The heat is transferred to the tank through the cavity (12). Step 3: After the set drying time is reached, the controller (15) automatically stops the heating wire (13) and keeps the motor running for 5 to 10 minutes (to allow the material to continue to circulate and cool evenly). Then, turn off the switch (8) to shut off the motor (9) and wait for the drying tank (1) to cool naturally to room temperature. Step 4: After confirming that the drying tank (1) has completely cooled down, rotate the sealed plug (2) to the bottom of the tank opening and open the sealed plug (2) to allow the powder to flow out naturally.