A device for low-temperature drying of high-moisture samples

Abstract

The present invention relates to the technical field of low-temperature drying of cigarette dust samples, and more specifically, to a device for low-temperature drying of high-moisture samples, comprising a housing and a control system, a temperature control system, and a humidity control system arranged in the housing, and also comprising a plurality of circulating dehumidification structures, each of which comprises a storage unit, a through-pipe, a drying unit, a blower, a conveying pipe, a cyclone separator, and a molecular sieve. The molecular sieve is stored in the storage unit, and the molecular sieve can circulate between the storage unit, the through-pipe, the drying unit, the conveying pipe, and the cyclone separator. The molecular sieves in the plurality of through-pipes can stably and quickly absorb moisture from the environment inside the housing through the holes, quickly reduce the humidity of the environment inside the housing, prevent the occurrence of frost problems, and shorten the time required for low-temperature drying of high-moisture samples; when the molecular sieve fails, the molecular sieve can be automatically recovered and dried for reuse, thereby reducing dehumidification costs and labor intensity and improving low-temperature drying efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of low-temperature drying of cigarette dust samples, and more particularly to a device for low-temperature drying of high-moisture samples. Background Art

[0002] When performing near-infrared testing on cigarette dust samples, it is usually necessary to control the moisture content of the cigarette dust to a lower level to ensure data accuracy. However, using drying methods can easily cause certain chemical components in the cigarette dust samples to volatilize or be destroyed. Usually, a constant temperature and humidity chamber can be used for low-temperature drying.

[0003] The prior art discloses a novel defrosting device for a constant temperature and humidity machine. Hot air discharged from the compressor flows into a hot air pipe and then into the condenser. A branch pipe is connected to the surface of the hot air pipe, allowing some of the hot air in the hot air pipe to pass through the branch pipe, a solenoid valve, and a hot air valve and enter the second serpentine pipe. When the hot air enters the second serpentine pipe, it increases the overall temperature of the second serpentine pipe, thereby defrosting the first and third serpentine pipes. In this solution, defrosting with hot air after frost has formed results in low drying efficiency and causes the temperature to rise, making it impossible to maintain stable low-temperature drying. Summary of the Invention

[0004] The purpose of the present invention is to overcome the shortcomings of the existing technology and provide a device for low-temperature drying of high-moisture samples, which can stably and quickly absorb moisture from the environment inside the box, quickly reduce the humidity of the environment inside the box, prevent the occurrence of frosting problems, significantly shorten the time required for low-temperature drying of high-moisture samples, and improve the low-temperature drying efficiency.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0006] A device for low-temperature drying of high-moisture samples is provided, comprising a box and a control system, a temperature control system and a humidity control system arranged in the box, the temperature control system and the humidity control system being respectively communicated with the control system; and further comprising a plurality of circulating dehumidification structures for removing ambient moisture in the box, each of the circulating dehumidification structures comprising a storage unit, a through pipe, a drying unit, a blower, a conveying pipe, a cyclone separator and a molecular sieve, one end of the through pipe being passed through the top of the box and communicating with the bottom of the storage unit, the other end of the through pipe being passed through the bottom of the box and communicating with the drying unit, the bottom of the drying unit being communicated with the cyclone separator through the conveying pipe, the bottom of the cyclone separator being communicated with the storage unit, the blower being located below the drying unit and being communicated with the conveying pipe, a plurality of holes being opened on the outer wall of the through pipe, the molecular sieve being stored in the storage unit, and the molecular sieve being able to circulate among the storage unit, the through pipe, the drying unit, the conveying pipe and the cyclone separator.

[0007] The device for low-temperature drying of high-moisture samples of the present invention, when in use, first stores the molecular sieve in the storage unit, and under the control of the control system, uses the temperature adjustment system and the humidity adjustment system to set the box to the required low temperature and humidity. After a large number of high-moisture samples are placed in the box, the molecular sieve in the storage unit is placed in the through pipe, so that the dry molecular sieve is connected to the internal environment of the box through the holes. The molecular sieves in the through pipes can stably and quickly absorb the moisture in the environment inside the box, thereby achieving the effect of quickly reducing the humidity in the environment inside the box, greatly shortening the time required for low-temperature drying of high-moisture samples, and preventing frosting problems. Occurs; when the molecular sieve fails, the molecular sieve in the through pipe can be recovered to the drying unit for drying, and then the dry molecular sieve is filled into the through pipe from the storage unit again to continue to adsorb moisture in the box. After the drying unit recovers and dries the failed molecular sieve, the dried molecular sieve can be discharged into the conveying pipe, and the dry molecular sieve is blown to the cyclone separator by a blower. The dry molecular sieve is separated from the incoming air by the cyclone separator, and the dry molecular sieve can fall back into the storage unit for reuse, reducing the dehumidification cost. The recycling of the molecular sieve does not require manual handling, which reduces labor intensity and improves low-temperature drying efficiency.

[0008] Furthermore, one end of the through pipe is connected to the storage unit through a first sealing structure, a guide pipe is provided on the top of the drying unit, and the other end of the through pipe is connected to the guide pipe through a second sealing structure.

[0009] Furthermore, the first sealing structure includes a first motor, a first rotating shaft and a first sealing plug, the first rotating shaft is rotatably installed on the inner wall of the through tube, the output shaft of the first motor is connected to the first rotating shaft, the first sealing plug is fixedly connected to the first rotating shaft, the first sealing plug can be sealed and connected to the bottom of the storage unit, and the first motor is communicatively connected to the control system.

[0010] Furthermore, the inner diameter of the storage unit gradually decreases from an end away from the through pipe to an end close to the through pipe.

[0011] Furthermore, a sensor is provided in the through pipe, and the sensor is communicatively connected with the control system.

[0012] Furthermore, the second sealing structure includes a second motor, a second rotating shaft and a second sealing plug. The second rotating shaft is rotatably installed in the outlet pipe. The output shaft of the second motor is connected to the second rotating shaft. The second sealing plug is fixedly connected to the second rotating shaft. The second sealing plug can be sealed to the bottom of the through pipe. The second motor is communicatively connected to the control system.

[0013] Furthermore, a humidity detector is provided in the box, and the humidity detector is communicatively connected to the control system.

[0014] Furthermore, the bottom of the cyclone separator is connected to the storage unit through a third sealing structure.

[0015] Furthermore, the box body includes a control box and a storage box, the control box is located on the top of the storage box, the control box and the storage box are separated by a partition, the control system is installed in the control box, and one end of the through pipe passes through the partition and the top of the control box in sequence.

[0016] Furthermore, the through pipe includes a first pipe section, an adsorption section and a second pipe section, the adsorption section is connected between the first pipe section and the second pipe section, the first pipe section includes the part of the through pipe located in the control box and the part extending out of the control box, the adsorption section is the part of the through pipe located in the storage box, the second pipe section is the part of the through pipe extending out of the storage box, and a plurality of holes are opened in the adsorption section.

[0017] Compared with the background technology, the device for low-temperature drying of high-moisture samples of the present invention has the following beneficial effects:

[0018] It can stably and quickly absorb moisture from the environment inside the box, quickly reduce the humidity inside the box, prevent the occurrence of frosting problems, significantly shorten the time required for low-temperature drying of high-moisture samples, and improve low-temperature drying efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 Schematic diagram of the structure of a device for low-temperature drying of high-moisture samples in an embodiment of the present invention;

[0020] Figure 2 This is a schematic structural diagram of a first sealing structure in an embodiment of the present invention;

[0021] Figure 3 Schematic diagram of the connection between the cyclone separator and the storage unit in an embodiment of the present invention;

[0022] Figure 4 Schematic diagram of the structure of the molecular sieve filled in the through tube in an embodiment of the present invention;

[0023] Figure 5 This is a schematic diagram of the installation of the through pipe in an embodiment of the present invention;

[0024] Figure 6 This is a block diagram of the principle of low-temperature drying of high-moisture samples in an embodiment of the present invention.

[0025] In the accompanying drawings: 1-box; 11-control box; 12-partition; 13-storage box; 131-first rotating shaft; 132-first sealing plug; 14-box door; 2-storage unit; 21-third rotating shaft; 22-third sealing plug; 3-through pipe; 31-first pipe section; 32-adsorption section; 321-hole; 33-second pipe section; 34-second sealing structure; 35-sealing ring; 4-drying unit; 41-delivery pipe; 42-valve; 5-blower; 6-delivery pipe; 7-cyclone separator; 71-exhaust pipe; 8-molecular sieve; 9-raising platform; 10-sensor. DETAILED DESCRIPTION

[0026] The present invention is further described below with reference to specific embodiments. The accompanying drawings are for illustrative purposes only and are schematic, not actual, representations. They should not be construed as limiting this patent. To better illustrate the embodiments of the present invention, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted from the drawings.

[0027] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, it is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as limiting this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0028] Example 1

[0029] A device for low temperature drying of high moisture samples, such as Figure 1 、 Figure 4As shown, it includes a box body 1 and a control system, a temperature control system and a humidity control system arranged in the box body 1, and the temperature control system and the humidity control system are respectively communicated with the control system; it also includes several circulating dehumidification structures for removing environmental moisture in the box body 1, each circulating dehumidification structure includes a storage unit 2, a through pipe 3, a drying unit 4, a blower 5, a conveying pipe 6, a cyclone separator 7 and a molecular sieve 8, one end of the through pipe 3 is passed through the top of the box body 1 and is connected to the bottom of the storage unit 2, the other end of the through pipe 3 is passed through the bottom of the box body 1 and is connected to the drying unit 4, the bottom of the drying unit 4 is connected to the cyclone separator 7 through the conveying pipe 6, and the bottom of the cyclone separator 7 is connected to the storage unit 2, the blower 5 is located below the drying unit 4 and the blower 5 is connected to the conveying pipe 6, a plurality of holes 321 are opened on the outer wall of the through pipe 3, the molecular sieve 8 is stored in the storage unit 2, and the molecular sieve 8 can circulate between the storage unit 2, the through pipe 3, the drying unit 4, the conveying pipe 6 and the cyclone separator 7.

[0030] When using the above-mentioned device for low-temperature drying of high-moisture samples, the molecular sieve 8 is first stored in the storage unit 2. Under the control of the control system, the temperature control system and the humidity control system are used to set the box 1 to the required low temperature and humidity. After a large number of high-moisture samples are placed in the box 1, the molecular sieve 8 in the storage unit 2 is placed in the through pipe 3, so that the dry molecular sieve 8 is connected to the internal environment of the box 1 through the hole 321. The molecular sieve 8 in the through pipe 3 can stably and quickly absorb the moisture in the environment of the box 1, thereby achieving the effect of quickly reducing the humidity of the environment in the box 1, greatly shortening the time required for low-temperature drying of high-moisture samples, and at the same time preventing the occurrence of frost problems. ; When the molecular sieve 8 fails, the molecular sieve 8 in the through pipe 3 can be recovered to the drying unit 4 for drying, and then the dry molecular sieve 8 can be filled into the through pipe 3 from the storage unit 2 again to continue to adsorb the moisture in the box 1. After the drying unit 4 recovers and dries the failed molecular sieve 8, the dried molecular sieve 8 can be discharged into the conveying pipe 6, and the dry molecular sieve 8 is blown to the cyclone separator 7 by the blower 5. The dry molecular sieve 8 is separated from the incoming air by the cyclone separator 7, and the dry molecular sieve 8 can fall back into the storage unit 2 for reuse, thereby reducing the dehumidification cost. In addition, the recycling of the molecular sieve 8 does not require manual handling, which reduces labor intensity and improves the low-temperature drying efficiency.

[0031] One end of the through pipe 3 is connected to the storage unit 2 through a first sealing structure, and a lead-out pipe 41 is provided on the top of the drying unit 4. The other end of the through pipe 3 is connected to the lead-out pipe 41 through a second sealing structure 34. Figure 1During implementation, the first sealing structure is opened to allow the molecular sieve 8 to be filled from the storage unit 2 into the through pipe 3 to dehumidify the environment within the housing 1. The first sealing structure is closed to stop the filling of the molecular sieve 8 into the through pipe 3 and prevent moisture in the through pipe 3 from entering the storage unit 2 and affecting the effectiveness of the molecular sieve 8 in the storage unit 2.

[0032] like Figure 1 、 Figure 2 As shown, the inner diameter of the storage unit 2 gradually decreases from the end away from the through-tube 3 to the end close to the through-tube 3 , which is conducive to the molecular sieve 8 sliding down and preventing the molecular sieve 8 from being blocked.

[0033] like Figure 1 As shown, a valve 42 is provided at the bottom of the drying unit 4, which controls the connection between the drying unit 4 and the delivery pipe 6. In practice, opening the valve 42 allows the dried molecular sieve 8 in the drying unit 4 to freely fall into the delivery pipe 6; closing the valve 42 prevents spent molecular sieve 8 from falling into the delivery pipe 6 for recycling before drying.

[0034] like Figure 1 、 Figure 3 As shown, the bottom of the cyclone separator 7 is connected to the storage unit 2 via a third sealing structure. Specifically, the cyclone separator 7 is provided with an exhaust pipe 71. Since the dried molecular sieve 8 is blown through the blower 5 in the delivery pipe 6, it is necessary to first close the third sealing structure, separate the gas from the molecular sieve 8 through the cyclone separator 7, and discharge the separated gas through the exhaust pipe 71. Then, the third sealing structure is opened to allow the separated, dried molecular sieve 8 to freely fall into the storage unit 2 for storage and recycling.

[0035] The size of the molecular sieve 8 is larger than the size of the hole 321. Specifically, the molecular sieve 8 can be spherical, and the diameter of the molecular sieve 8 is 3mm to 5mm. The hole 321 is a circular hole, and the aperture of the circular hole is less than 3mm, ensuring that the molecular sieve 8 can absorb the environmental moisture in the box 1 through the circular hole, while preventing the molecular sieve 8 from leaking out of the hole 321.

[0036] Example 2

[0037] This embodiment is similar to the first embodiment, except that Figure 2As shown, the first sealing structure includes a first motor, a first rotating shaft 131, and a first sealing plug 132. The first rotating shaft 131 is rotatably mounted on the inner wall of the through-tube 3. The output shaft of the first motor is connected to the first rotating shaft 131. The first sealing plug 132 is fixedly connected to the first rotating shaft 131. The first sealing plug 132 can be sealed to the bottom of the storage unit 2. The first motor is in communication with the control system. During implementation, the control system controls the first motor to rotate the first rotating shaft 131, thereby rotating the first sealing plug 132. The control system can control the opening or closing of the first sealing plug 132, thereby allowing the molecular sieve 8 in the storage unit 2 to freely fall or stop filling the through-tube 3 with the molecular sieve 8.

[0038] The second sealing structure 34 includes a second motor, a second rotating shaft, and a second sealing plug. The second rotating shaft is rotatably mounted within the outlet pipe 41. The output shaft of the second motor is connected to the second rotating shaft, and the second sealing plug is fixedly connected to the second rotating shaft. The second sealing plug can be sealed to the bottom of the through-tube 3. The second motor is in communication with the control system. During implementation, the control system controls the second motor to rotate the second rotating shaft, thereby rotating the second sealing plug. This can control the opening or closing of the second sealing plug, thereby allowing the molecular sieve 8 in the through-tube 3 to fall out of the through-tube 3 for recovery, or allowing the molecular sieve 8 to remain filled in the through-tube 3 to absorb moisture from the environment within the housing 1.

[0039] The drying unit 4 includes a drying drum and a heating wire disposed within the drying drum. The drying drum is provided with an exhaust hole, and a valve 42 is disposed at the bottom of the drying drum. The drying unit 4 also includes a fourth motor, the output end of which is connected to the valve 42. The fourth motor and the heating wire are each connected to a control system. During operation, the control system controls the rotation of the fourth motor to close the valve 42, recovering the spent molecular sieve 8 within the drying unit 4 within the drying drum. The heating wire is then heated for a predetermined time to dry the molecular sieve 8 within the drying drum. Water vapor generated during the drying process is discharged through the exhaust hole. After drying is complete, the heating wire stops heating, the fourth motor is reversed, and the valve 42 is opened, allowing the dried molecular sieve 8 to freely fall into the delivery pipe 6.

[0040] like Figure 3 As shown, the third sealing structure includes a third motor, a third rotating shaft 21, and a third sealing plug 22. The third rotating shaft 21 is rotatably mounted within the storage unit 2. The output shaft of the third motor is connected to the third rotating shaft 21, and the third sealing plug 22 is fixedly connected to the third rotating shaft 21. The third sealing plug 22 can be sealed to the bottom of the cyclone separator 7. The third motor is in communication with the control system. During implementation, the control system controls the third motor to rotate the third rotating shaft 21, thereby rotating the third sealing plug 22. The third sealing plug 22 can be controlled to open or close, thereby allowing the molecular sieve 8 in the cyclone separator 7 to freely fall into the storage unit 2 or separating the cyclone separator 7 from the storage unit 2.

[0041] It should be noted that the first sealing plug 132 , the second sealing plug, and the third sealing plug 22 may all be made of rubber structures, and other flexible material structures that can achieve sealing are applicable to this embodiment.

[0042] Specifically, if Figure 4 、 Figure 6 As shown, a sensor is provided in the through pipe 3, and a humidity detector is provided in the box body 1. The sensor, the humidity detector, the heating wire, the blower 5, and the cyclone separator 7 are respectively connected to the control system for communication.

[0043] The working process of this embodiment is specifically as follows: first, the second sealing plug is closed by the second motor, and then the first sealing plug 132 is opened by the first motor, so that the dried molecular sieve 8 in the storage unit 2 falls freely to fill the through pipe 3. When the sensor senses that the height of the molecular sieve 8 in the through pipe 3 reaches a preset height, the control system controls the first motor to reverse, close the first sealing plug 132, and the molecular sieve 8 in the through pipe 3 absorbs the moisture in the environment of the box 1 through the hole 321. When the humidity detector detects that the humidity in the box 1 has not dropped to the set value for more than 2 hours, the control system controls the second motor to run, open the second sealing plug for 2 minutes, and allow the invalid molecular sieve 8 in the through pipe 3 to enter the drying barrel through the outlet pipe 41, and then drive the second sealing plug to dry the molecular sieve 8 in the through pipe 3 through the second motor. The seal is closed, and the first motor drives the first sealing plug 132 to open, and the dry molecular sieve 8 continues to be filled into the through pipe 3. At the same time, the heating wire in the drying barrel works to raise the temperature in the drying barrel to 150, and the molecular sieve 8 in the drying barrel is dried for 8 hours. The water vapor is discharged from the exhaust hole, and then the fourth motor drives the valve 42 to open, and the dried molecular sieve 8 falls into the conveying pipe 6. After closing the valve 42, the blower 5 blows the dried molecular sieve 8 along the conveying pipe 6 to the cyclone separator 7. The cyclone separator 7 works to separate the molecular sieve 8 from the delivered gas, and the gas is discharged from the exhaust pipe 71. Then the third motor drives the third sealing plug 22 to open, so that the dried molecular sieve 8 falls into the storage unit 2 for storage and waits for reuse.

[0044] Example 3

[0045] This embodiment is similar to the second embodiment, except that Figure 1 、 Figure 4 and Figure 5As shown, the housing 1 includes a control box 11 and a storage box 13. The control box 11 is located on top of the storage box 13, separated from the storage box 13 by a partition 12. The control system is installed within the control box 11, and one end of the through-tube 3 passes through the partition 12 and the top of the control box 11 in sequence. Specifically, the through-tube 3 is provided with a sealing ring 35, through which the through-tube 3 is sealed to the partition 12. In operation, the sealing ring 35 seals the connection between the through-tube 3 and the partition 12, preventing moisture from the storage box 13 from entering the control box 11 through the gap at the connection between the through-tube 3 and the partition 12, thereby affecting the normal operation of the control system.

[0046] like Figure 4 、 Figure 5 As shown, the through pipe 3 includes a first pipe section 31, an adsorption section 32 and a second pipe section 33. The adsorption section 32 is connected between the first pipe section 31 and the second pipe section 33. The first pipe section 31 includes a portion of the through pipe 3 located in the control box 11 and a portion extending out of the control box 11. The adsorption section 32 is the portion of the through pipe 3 located in the storage box 13. The second pipe section 33 is the portion of the through pipe 3 extending out of the storage box 13. A number of holes 321 are opened in the adsorption section 32. During implementation, the molecular sieve 8 in the through pipe 3 is connected to the internal environment of the storage box 13 through the several holes 321 on the adsorption section 32. The molecular sieves 8 in the through pipes 3 can quickly absorb the moisture in the internal environment of the storage box 13, thereby achieving the effect of quickly reducing the humidity of the environment in the box 1; in addition, the molecular sieves 8 in the first pipe section 31 and the second pipe section 33 are not connected to the environment in the control box 11 or the environment outside the box 1, preventing the moisture in the environment in the storage box 13 from entering the control box 11 through the first pipe section 31. At the same time, it prevents the molecular sieve 8 from being connected to the external environment of the box 1, which causes the molecular sieve 8 to absorb moisture outside the box 1 and become ineffective.

[0047] like Figure 1 、 Figure 5 As shown, a door 14 is provided on one side of the storage box 13. The door 14 is hinged to the storage box 13 to facilitate sample storage or sampling. The through pipe 3 is arranged near the door 14 to quickly absorb moisture when the humidity rises after the door 14 is opened. The door 14 can be designed as a single-door or double-door type according to usage needs.

[0048] like Figure 1 As shown, it also includes a raised platform 9, and the box 1 is placed on the top of the raised platform 9. The raised platform 9 is used to support the box 1 and ensure that the molecular sieve 8 in the through pipe 3 can fall freely into the drying unit 4 under the action of gravity.

[0049] In the specific contents of the above-mentioned specific implementation methods, the various technical features can be combined in any non-contradictory manner. In order to make the description concise, not all possible combinations of the above-mentioned technical features are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0050] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Those skilled in the art will appreciate that other variations or modifications can be made based on the above description. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. A device for drying high-moisture samples at low temperature, comprising a box (1) and a control system, a temperature control system and a humidity control system provided in the box (1), wherein the temperature control system and the humidity control system are respectively connected to the control system in a communication manner; characterized in that: The invention also includes a plurality of circulating dehumidification structures for removing moisture from the environment in the box (1), each of the circulating dehumidification structures including a storage unit (2), a through pipe (3), a drying unit (4), a blower (5), a conveying pipe (6), a cyclone separator (7) and a molecular sieve (8), one end of the through pipe (3) is arranged through the top of the box (1) and is connected to the bottom of the storage unit (2), the other end of the through pipe (3) is arranged through the bottom of the box (1) and is connected to the drying unit (4), and the bottom of the drying unit (4) is connected to the conveying pipe (6). The pipe (6) is in communication with the cyclone separator (7), the bottom of the cyclone separator (7) is in communication with the storage unit (2), the blower (5) is located below the drying unit (4) and the blower (5) is in communication with the delivery pipe (6), a plurality of holes (321) are provided on the outer wall of the through pipe (3), the molecular sieve (8) is stored in the storage unit (2), and the molecular sieve (8) can circulate among the storage unit (2), the through pipe (3), the drying unit (4), the delivery pipe (6), and the cyclone separator (7); One end of the through pipe (3) is connected to the storage unit (2) via a first sealing structure, a guide pipe (41) is provided on the top of the drying unit (4), and the other end of the through pipe (3) is connected to the guide pipe (41) via a second sealing structure (34); The first sealing structure comprises a first motor, a first rotating shaft (131) and a first sealing plug (132); the first rotating shaft (131) is rotatably mounted on the inner wall of the through pipe (3); the output shaft of the first motor is connected to the first rotating shaft (131); the first sealing plug (132) is fixedly connected to the first rotating shaft (131); the first sealing plug (132) is sealed and connected to the bottom of the storage unit (2); and the first motor is in communication with the control system; The box body (1) comprises a control box (11) and a storage box (13), wherein the control box (11) is located on the top of the storage box (13), and the control box (11) and the storage box (13) are separated by a partition (12). The control system is installed in the control box (11), and one end of the through pipe (3) passes through the partition (12) and the top of the control box (11) in sequence; The through pipe (3) comprises a first pipe section (31), an adsorption section (32) and a second pipe section (33); the adsorption section (32) is connected between the first pipe section (31) and the second pipe section (33); the first pipe section (31) comprises a portion of the through pipe (3) located in the control box (11) and a portion extending out of the control box (11); the adsorption section (32) is a portion of the through pipe (3) located in the storage box (13); the second pipe section (33) is a portion of the through pipe (3) extending out of the storage box (13); and a plurality of holes (321) are provided in the adsorption section (32).

2. The device for low-temperature drying of high-moisture samples according to claim 1, characterized in that: The inner diameter of the storage unit (2) gradually decreases from an end away from the through pipe (3) to an end close to the through pipe (3).

3. The device for low-temperature drying of high-moisture samples according to claim 1, characterized in that: A sensor (10) is provided in the through pipe (3), and the sensor (10) is communicatively connected to the control system.

4. The device for low-temperature drying of high-moisture samples according to claim 1, characterized in that: The second sealing structure (34) includes a second motor, a second rotating shaft and a second sealing plug. The second rotating shaft is rotatably installed in the outlet pipe (41). The output shaft of the second motor is connected to the second rotating shaft. The second sealing plug is fixedly connected to the second rotating shaft. The second sealing plug is sealed and connected to the bottom of the through pipe (3). The second motor is in communication connection with the control system.

5. The device for low-temperature drying of high-moisture samples according to claim 4, characterized in that: A humidity detector is provided in the box (1), and the humidity detector is communicatively connected to the control system.

6. The device for low-temperature drying of high-moisture samples according to claim 1, characterized in that: The bottom of the cyclone separator (7) is connected to the storage unit (2) via a third sealing structure.

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