A rhizome traditional Chinese medicinal material cleaning and pretreatment device

Abstract

This invention discloses a pretreatment device for cleaning rhizomes and other medicinal herbs, comprising a drum assembly. The drum assembly includes an outer drum, a middle drum, and an inner drum. The middle drum is fitted outside the inner drum and connected by a support member. The outer drum is fitted outside the middle drum. Two symmetrical support pipes are connected to the outside of the middle drum and extend through it to the outside of the outer drum. A drying structure is provided on the outside of the drum assembly, including a connected heating element and a fan. The fan's inlet and outlet are respectively connected to the two support pipes, forming a circulating hot air circuit. The inner drum surface has several through holes, and the inner wall of the inner drum is provided with a rubber spiral. A transmission structure is provided on the outer drum to drive the inner drum to rotate. This invention, through a three-layer drum structure and a circulating hot air drying system, achieves uniform drying pretreatment of medicinal herbs, with advantages such as high drying efficiency, uniform heating, energy saving and environmental protection, and simple operation, effectively improving the quality of medicinal herb pretreatment.

Description

Technical Field

[0001] This invention relates to the field of traditional Chinese medicine processing technology, and in particular to a pretreatment device for cleaning rhizomes and other traditional Chinese medicinal materials. Background Technology

[0002] After harvesting, rhizome-type Chinese medicinal materials usually contain a large amount of water and need to undergo pre-treatment processes such as washing and drying to facilitate subsequent storage, processing and preservation of medicinal components. Among these, drying is a key step in the pre-treatment of Chinese medicinal materials, and the drying effect directly affects the quality, efficacy and shelf life of the medicinal materials.

[0003] Currently, most commercially available Chinese medicinal herb drying devices employ a single-layer drum structure combined with hot air drying. However, existing devices have the following shortcomings in practical applications: Poor drying uniformity is a problem. In existing single-layer drum structures, medicinal herbs tend to accumulate at the bottom of the drum during rotation, making it difficult for hot air to penetrate the accumulated layer. This results in uneven heating between the upper and lower layers of herbs, leading to issues such as dryness on the outside and dampness on the inside, localized over-drying or under-drying, which affects the overall quality of the herbs. This problem is particularly pronounced for root and tuberous herbs and other large-volume medicinal materials.

[0004] Low thermal efficiency and high energy consumption are problems with existing equipment, which mostly uses an open-type hot air drying method. Hot air passes through the drum once and is directly discharged, resulting in significant heat loss and low energy utilization. At the same time, the hot air stays in the drum for a short time, resulting in insufficient contact with the medicinal materials and making it difficult to achieve the desired drying effect. This necessitates extending the drying time or increasing the temperature, further increasing energy consumption.

[0005] Lacking effective filtration and purification functions, Chinese medicinal materials generate dust, debris, and some volatile components during the drying process. Existing equipment often lacks filtration structures, and these substances are discharged with hot air, polluting the working environment, potentially affecting the health of operators, and increasing the burden of subsequent environmental treatment.

[0006] Therefore, we propose a pretreatment device for cleaning rhizomes and other medicinal materials to solve the problems existing in the background technology. Summary of the Invention

[0007] The purpose of this invention is to address the shortcomings of existing technologies by proposing a pretreatment device for cleaning root and rhizome Chinese medicinal materials.

[0008] To achieve the above objectives, the present invention adopts the following technical solution: A pretreatment device for cleaning rhizomes and other medicinal herbs includes a drum assembly. The drum assembly includes an outer drum, a middle drum, and an inner drum. The middle drum is fitted outside the inner drum and connected to the inner drum by a support member. The outer drum is fitted outside the middle drum and includes an upper half and a lower half connected together. Two symmetrical support pipes are connected to the outside of the middle drum and extend through it to the outside of the outer drum. A drying structure is provided on the outside of the drum assembly. The drying structure includes a heating element and a fan connected together. The air inlet and outlet of the fan are respectively connected to the two support pipes, so that the fan blows air into the middle drum and draws air out of the middle drum during operation. The heating element is connected between the air outlet of the fan and the support pipe, so that the air blown into the middle drum is hot air, which can dry the clean medicinal herbs in the inner drum.

[0009] Preferably, the heating component includes a rectangular frame, and a heating tube is provided in the rectangular frame. When the heating tube is energized, it generates heat that can heat the passing air. A connecting hopper B and a connecting hopper C are respectively connected to the rectangular frame. The position of the connecting hopper B away from the rectangular frame is connected to a support pipe through a connecting pipe A. The connecting hopper C is connected to the air outlet of the fan. The fan has a connecting hopper D at its air inlet, and the connecting hopper D is connected to another support pipe. When the fan is powered on, it draws air from the middle cylinder through the connecting hopper D and the other support pipe, and then discharges it from the connecting hopper C into the rectangular frame. After that, it is discharged from the connecting hopper B into the connecting pipe A through the heating pipe, and then from the connecting pipe A through a support pipe into the middle cylinder, so as to dry the medicinal materials in the inner cylinder by means of heated air.

[0010] Preferably, a filter structure is connected between the connecting hopper D and the other support pipe. The filter structure includes a concave shell, and several sets of side-by-side baffles are provided in the concave shell. A filter plate is provided between each set of baffles, and a baffle is inserted into one side of the concave shell. The contact position between the baffle and the concave shell is sealed with a non-slip rubber, which not only prevents loosening but also provides a certain sealing effect. The baffle is a maintenance plate, which makes it easy to open and remove the filter plate for cleaning. Two symmetrical connecting hoppers A are connected to the concave shell. The two connecting hoppers A are connected to the connecting hopper D and the other support pipe through connecting pipes B and C, respectively. When the fan draws air, the path is connecting hopper D, connecting pipe B, one connecting hopper A, the filter plate in the concave shell, the other connecting hopper A, connecting pipe C, the other support pipe, and the intermediate cylinder. During this process, the filter plate can filter and purify the gas to a certain extent, preventing impurities from entering the fan and also preventing unsuitable gases generated during the drying of medicinal materials.

[0011] Preferably, the inner cylinder has several through holes on its surface, which facilitates the entry of hot air into the inner cylinder. The inner wall of the inner cylinder has a rubber spiral for easy discharge of Chinese medicinal materials. Positioning rings are fitted on both ends of the outer side of the inner cylinder, and an external toothed ring is fitted on one end of the outer side of the inner cylinder. The outer cylinder has a transmission structure that works in conjunction with the external toothed ring. The transmission structure is a combination structure of motor, gearbox, sprocket and chain that has been disclosed in the prior art. The sprocket is connected to the external toothed ring through the chain. When the motor starts, the power transmitted from the gearbox drives the sprocket to rotate. The sprocket drives the external toothed ring to rotate through the chain. The external toothed ring drives the inner cylinder to rotate in the support members at both ends of the intermediate cylinder. The rotation of the inner cylinder can turn the internal medicinal materials over, which can improve the uniformity of drying of the medicinal materials.

[0012] Preferably, the support member includes a support ring connected to the end of the intermediate cylinder and the inner cylinder. The surface of the support ring has a plurality of support plates distributed in a circular pattern. The support plates are located on the inner wall of the intermediate cylinder near the end. The surface of the support ring has a plurality of positioning wheels distributed in a circular pattern. The positioning wheels are distributed around the positioning ring and are positioned opposite to the support plates. The intermediate cylinder is not rotatable in the outer cylinder, but the inner cylinder is rotatable in the intermediate cylinder. The inner cylinder extends from the two support rings respectively.

[0013] Preferably, the roller assembly has a support frame C at the bottom, and the support frame C is connected to two support tubes. The support tubes not only serve as a connection but also as a support, and the roller assembly can be supported between the support frames C through the two support tubes.

[0014] Preferably, one end of the roller assembly has a feed inlet structure, and the other end of the roller assembly has a discharge outlet structure. The feed inlet structure allows the Chinese medicinal materials to be placed in the inner cylinder for tumbling, and the discharge outlet structure can receive the discharged Chinese medicinal materials.

[0015] Preferably, the feed inlet structure includes a feed hopper and a baffle, the baffle is connected to a support ring, the feed hopper is connected to the end of the lower cylinder through a support frame A, and the downward inclined end of the feed hopper extends into the end of the inner cylinder.

[0016] Preferably, the discharge port structure includes a discharge hopper located below the other end of the roller assembly, and the discharge is supported on the support frame C by the support frame B.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. This invention constructs a circulating hot air channel by setting up a three-layer drum structure, namely a combination of an outer drum, a middle drum, and an inner drum. The middle drum and the inner drum are connected by a support member to form an annular air duct. The fan sends hot air into the middle drum from one end of the support pipe. The hot air flows in the middle drum and enters the inner drum through the through holes on the surface of the inner drum to contact the medicinal materials. Then it is extracted through the other end of the support pipe to form a circulation loop. This structure makes the hot air evenly distributed around the inner drum and penetrates the medicinal material layer from all directions. It effectively solves the problems of uneven hot air penetration and insufficient drying at the accumulation points of medicinal materials in traditional single-layer drums, significantly improves the drying uniformity, and ensures the quality of medicinal materials.

[0018] 2. This invention adopts a closed-loop circulating hot air system. The fan draws air from the middle cylinder, heats it through the heating component, and then sends it back into the middle cylinder. The hot air is circulated within the system, which greatly reduces heat loss and improves energy efficiency. At the same time, the hot air comes into full contact with the medicinal materials during the circulation process, which prolongs the interaction time between the hot air and the medicinal materials. Under the same energy consumption, a better drying effect can be obtained, the drying time is shortened, and the purpose of energy saving and consumption reduction is achieved.

[0019] 3. This invention features a filter structure between the fan inlet and the support pipe. The filter structure contains multiple filter plates, which can effectively filter dust, debris, and volatile substances generated during the drying process. On the one hand, this prevents impurities from entering the fan, ensuring its normal operation and extending the equipment's service life; on the other hand, it purifies the exhaust air, reduces pollution to the working environment, protects the health of operators, and meets environmental protection production requirements. The filter plates are installed via a plug-in connection, and the baffle can be opened to remove the filter plates for cleaning, making maintenance convenient.

[0020] 4. The inner wall of the inner cylinder of this invention is equipped with a rubber spiral. During the rotation of the inner cylinder, the rubber spiral can push the medicinal materials to gradually move towards the discharge end, realizing automatic and continuous discharge without manual assistance, which improves production efficiency and reduces damage and spillage of medicinal materials. At the same time, the through-hole design on the surface of the inner cylinder allows hot air to fully enter the inner cylinder and come into contact with the medicinal materials. Combined with the tumbling effect of the rotation of the inner cylinder on the medicinal materials, all sides of the medicinal materials can be heated and dried, further improving the drying effect.

[0021] 5. The invention features a reasonable overall structure and is easy to operate. The inner cylinder is driven to rotate via a transmission structure, with adjustable speed to meet the drying needs of different types of Chinese medicinal herbs. The scientifically designed inlet and outlet ensure smooth material flow, facilitating continuous production. All components are easy to assemble and disassemble, simplifying daily maintenance and cleaning, thus possessing excellent practicality and promotional value. Attached Figure Description

[0022] Figure 1 This invention provides a three-dimensional pretreatment device for cleaning rhizomes and other medicinal herbs. Figure 1 ; Figure 2This invention provides a three-dimensional pretreatment device for cleaning rhizomes and other medicinal herbs. Figure 2 ; Figure 3 for Figure 2 A partial structural diagram; Figure 4 for Figure 3 Disassembly of the middle roller assembly structure Figure 1 ; Figure 5 for Figure 3 Disassembly of the middle roller assembly structure Figure 2 ; Figure 6 for Figure 4 A breakdown diagram of the inner cylinder and the lower cylinder; Figure 7 This is a schematic diagram showing the interconnected arrangement of the heating component, fan, and filter structure in a pretreatment device for cleaning rhizomes and other medicinal materials proposed in this invention. Figure 8 for Figure 7 Detailed structural diagram of the heating component; Figure 9 for Figure 7 Internal structure diagram of the filter structure; Figure 10 for Figure 9 A structural breakdown diagram of the filtering structure.

[0023] In the diagram: 1. Outer cylinder; 11. Upper cylinder; 12. Lower cylinder; 13. Support component; 131. Support ring; 132. Support plate; 133. Positioning wheel; 14. Support tube; 2. Intermediate cylinder; 3. Inner cylinder; 31. Positioning ring; 32. External toothed ring; 4. Filter structure; 41. Concave shell; 411. Baffle; 412. Baffle rod; 42. Filter plate; 43. Connecting hopper A; 5. Transmission structure; 6. Feed inlet structure; 61. Support frame A; 62. Feed hopper; 63. Baffle shell; 7. Discharge outlet structure; 71. Support frame B; 72. Discharge hopper; 8. Support frame C; 9. Heating component; 91. Rectangular frame; 911. Heating tube; 92. Connecting hopper B; 93. Connecting hopper C; 10. Fan; 101. Connecting hopper D. Detailed Implementation

[0024] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0025] In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0026] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0027] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0028] Reference Figure 1-10 A pretreatment device for cleaning rhizomes and other medicinal herbs includes a roller assembly. The roller assembly includes an outer cylinder 1, a middle cylinder 2, and an inner cylinder 3. The middle cylinder 2 is fitted outside the inner cylinder 3 and is connected to the inner cylinder 3 by a support member 13. The outer cylinder 1 is fitted outside the middle cylinder 2 and includes an upper half cylinder 11 and a lower half cylinder 12 connected together. The upper half cylinder 11 and the lower half cylinder 12 can be fixed by bolts or snap-fit ​​connections for easy disassembly and maintenance. The middle cylinder 2 has two symmetrical support pipes 14 connected to its exterior. The support pipes 14 extend through the outer cylinder 1 and serve as both air duct connection ports and support points for the roller assembly.

[0029] Reference Figure 1-3 , Figure 7The drum assembly has an external drying structure, which includes a connected heating element 9 and a fan 10. The air inlet and outlet of the fan 10 are connected to two support pipes 14, forming a circulating air path. Specifically, the heating element 9 includes a rectangular frame 91, within which a heating tube 911 is installed. When energized, the heating tube 911 generates heat, turning the passing air into hot air. Connecting hoppers B92 and C93 are connected to the rectangular frame 91. The end of connecting hopper B92 furthest from the rectangular frame 91 is connected to one support pipe 14 via a connecting pipe A. Connecting hopper C93 is connected to the air outlet of the fan 10. A connecting hopper D101 is located at the air inlet of the fan 10, and connecting hopper D101 is connected to another support pipe 14.

[0030] When the blower 10 is powered on, air is drawn from the intermediate cylinder 2 through the connecting hopper D101 and the supporting pipe 14 connected to it. The drawn air enters the rectangular frame 91 through the connecting hopper C93, is heated by the heating pipe 911, and is discharged from the connecting hopper B92. It is then sent back into the intermediate cylinder 2 through the connecting pipe A and another supporting pipe 14. This cycle continues. The hot air flows between the intermediate cylinder 2 and the inner cylinder 3, enters the interior of the inner cylinder 3 through the through holes on the surface of the inner cylinder 3, and comes into contact with the Chinese medicinal materials in the inner cylinder 3 to dry them.

[0031] Reference Figure 3 , Figure 7 , Figure 9 A filter structure 4 connects the connecting bucket D101 to another support pipe 14. The filter structure 4 includes a concave shell 41, in which several sets of side-by-side baffles 412 are provided. A filter plate 42 is provided between each set of baffles 412. The filter plate 42 can be an activated carbon filter or a high-efficiency HEPA filter, selected according to actual needs. A baffle 411 is inserted into one side of the concave shell 41. The contact position between the baffle 411 and the concave shell 41 is provided with sealing and anti-slip rubber, which can prevent loosening and provide a sealing effect. The baffle 411 is a maintenance plate, which can be opened to remove the filter plate 42 for cleaning or replacement. Two symmetrical connecting buckets A43 are connected to the concave shell 41. The two connecting buckets A43 are connected to the connecting bucket D101 and the other support pipe 14 through connecting pipes B and C, respectively.

[0032] When the fan 10 draws air, the airflow path is: connecting hopper D101 → connecting pipe B → one connecting hopper A43 → filter plate 42 in concave shell 41 → another connecting hopper A43 → connecting pipe C → another support pipe 14 → intermediate cylinder 2. During this process, the filter plate 42 filters the airflow, removes dust, debris and volatile substances generated during the drying process, prevents impurities from entering the fan 10, and purifies the circulating air.

[0033] Reference Figure 4-6The inner cylinder 3 has several through holes (not shown in the figure) evenly distributed on its surface to facilitate the entry of hot air into the inner cylinder 3. A rubber spiral (not shown in the figure) is provided on the inner wall of the inner cylinder 3, spirally distributed along its inner wall. When the inner cylinder 3 rotates, the rubber spiral pushes the medicinal material gradually towards the discharge end, achieving automatic discharge. Positioning rings 31 are fitted on the outer side of the inner cylinder 3 near both ends to cooperate with positioning wheels 133 in the support member 13, supporting the rotation of the inner cylinder 3. An external toothed ring 32 is fitted on the outer side of the inner cylinder 3 near one end. A transmission structure 5 is provided on the outer cylinder 1 and cooperates with the external toothed ring 32.

[0034] In this embodiment, the transmission structure 5 is a combination of a motor, a gearbox, a sprocket, and a chain. The sprocket is connected to the outer toothed ring 32 via the chain. After the motor starts, the power transmitted from the gearbox drives the sprocket to rotate. The sprocket drives the outer toothed ring 32 to rotate via the chain. The outer toothed ring 32 drives the inner cylinder 3 to rotate in the support members 13 at both ends of the intermediate cylinder 2. During the rotation of the inner cylinder 3, the internal medicinal materials are turned over and come into full contact with the hot air, thereby improving the uniformity of drying.

[0035] Reference Figure 4-6 The support member 13 includes a support ring 131, which is connected to the ends of the intermediate cylinder 2 and the inner cylinder 3. The surface of the support ring 131 is provided with a plurality of support plates 132 distributed in a circular pattern. The support plates 132 are located on the inner wall of the intermediate cylinder 2 near the end and are used to support the intermediate cylinder 2 and keep the intermediate cylinder 2 in a fixed position. The surface of the support ring 131 is also provided with a plurality of positioning wheels 133 distributed in a circular pattern. The positioning wheels 133 are distributed around the positioning ring 31 on the inner cylinder 3. The positioning wheels 133 contact the positioning ring 31 and provide support for the inner cylinder 3, allowing it to rotate smoothly. The positioning wheels 133 and the support plates 132 are located on both sides of the support ring 131 and are in opposite positions. The intermediate cylinder 2 cannot rotate in the outer cylinder 1, while the inner cylinder 3 can rotate freely in the intermediate cylinder 2. The two ends of the inner cylinder 3 extend out from the two support rings 131 respectively.

[0036] Reference Figure 1-3 The bottom of the roller assembly is provided with a support frame C8, which is connected to two support pipes 14. The support pipes 14 not only serve to connect the ventilation channels, but also to support the roller assembly. The roller assembly is supported between the support frame C8 through the two support pipes 14, making the structure stable and reliable.

[0037] Reference Figure 1-3The roller assembly has a feed inlet structure 6 at one end and a discharge outlet structure 7 at the other end. The feed inlet structure 6 includes a feed hopper 62 and a baffle 63. The baffle 63 is connected to a support ring 131 to shield the feed end and prevent the medicinal materials from splashing. The feed hopper 62 is connected to the end of the lower half-cylinder 12 via a support frame A61. The feed hopper 62 is inclined downwards, and its lower end extends into the inner end of the inner cylinder 3 to facilitate the smooth entry of the medicinal materials into the inner cylinder 3. The discharge outlet structure 7 includes a discharge hopper 72 located below the other end of the roller assembly. The discharge hopper 72 is supported on a support frame C8 via a support frame B71 and is used to receive the Chinese medicinal materials discharged from the inner cylinder 3 after drying.

[0038] During operation, the fan 10 and heating component 9 are started first to circulate hot air in the system for preheating. After the temperature reaches the set value, the transmission structure 5 is started. The motor drives the outer toothed ring 32 to rotate through the chain, which in turn drives the inner cylinder 3 to rotate at an appropriate speed. Then, the Chinese medicinal materials to be dried are continuously fed into the inner cylinder 3 through the feed hopper 62. After the Chinese medicinal materials enter the inner cylinder 3, they continuously tumble as the inner cylinder 3 rotates. At the same time, the fan 10 draws air from the middle cylinder 2. The air is filtered by the filter structure 4 and then enters the fan 10. It is then heated by the heating component 9 to become hot air. The hot air is sent into the middle cylinder 2 through the support pipe 14. The hot air flows in the annular space between the middle cylinder 2 and the inner cylinder 3. It enters the interior of the inner cylinder 3 through the through holes on the surface of the inner cylinder 3 and comes into full contact with the tumbling Chinese medicinal materials to heat and dry them. The hot air carrying moisture returns to the middle cylinder 2 through the through holes on the other side of the inner cylinder 3 and is drawn out by the fan 10, completing one cycle. During the drying process, the rubber spiral on the inner wall of the inner cylinder 3 continuously pushes the medicinal material towards the discharge end. When the medicinal material moves to the other end of the inner cylinder 3, it is discharged from the end of the inner cylinder 3 and falls into the discharge hopper 72, completing the drying and discharge process. Based on the type, moisture content, and drying requirements of the Chinese medicinal materials, the drying process parameters can be optimized by adjusting the air volume of the fan 10, the temperature of the heating component 9, and the rotation speed of the inner cylinder 3 to achieve the best drying effect. After the filter plate 42 in the filter structure 4 has been used for a period of time, the baffle 411 can be opened to remove the filter plate 42 for cleaning or replacement, so as to ensure the filtration effect and smooth ventilation. The entire pretreatment device has a compact structure, is easy to operate, and has high drying efficiency, making it suitable for batch drying and pretreatment of various Chinese medicinal materials.

[0039] The above embodiments are preferred embodiments of the present invention, but the embodiments of the present invention are not limited to the above embodiments. Any changes, modifications, substitutions, combinations, or simplifications made without departing from the spirit and principle of the present invention shall be considered equivalent substitutions and shall be included within the protection scope of the present invention.

Claims

1. A pretreatment device for cleaning rhizomes and other Chinese medicinal materials, comprising a drum assembly, the drum assembly comprising an outer cylinder (1), a middle cylinder (2) and an inner cylinder (3), the middle cylinder (2) being sleeved outside the inner cylinder (3), and the middle cylinder (2) and the inner cylinder (3) being connected by a support member (13), the outer cylinder (1) being sleeved outside the middle cylinder (2), and the outer cylinder (1) comprising an upper half cylinder (11) and a lower half cylinder (12) connected together, the middle cylinder (2) being connected to two symmetrical support pipes (14) extending through to the outside of the outer cylinder (1), the drum assembly being provided with a drying structure, and the drying structure comprising a heating component (9) and a fan (10) connected together, the air inlet and air outlet of the fan (10) being connected to the two support pipes (14) respectively.

2. The rhizome Chinese medicinal material cleaning and pretreatment device according to claim 1, characterized in that, The heating component 9 includes a rectangular frame 91, and a heating tube (911) is provided in the rectangular frame (91). The heating tube (911) generates heat after being powered on, which can heat the passing air. A connecting bucket B (92) and a connecting bucket C (93) are respectively connected on the rectangular frame (91). The position of the connecting bucket B (92) away from the rectangular frame (91) is connected to a support pipe (14) through a connecting pipe A. The connecting bucket C (93) is connected to the air outlet of the fan (10). The air inlet of the fan (10) has a connecting bucket D (101), and the connecting bucket D (101) is connected to another support pipe (14).

3. The pretreatment device for cleaning rhizomes and other medicinal materials according to claim 2, characterized in that, A filter structure (4) is connected between the connecting bucket D (101) and another support pipe (14). The filter structure (4) includes a concave shell (41) and a number of sets of side-by-side baffles (412) are provided in the concave shell (41). A filter plate (42) is provided between each set of baffles (412). A baffle (411) is inserted into one side of the concave shell (41). Two symmetrical connecting buckets A (43) are connected on the concave shell (41). The two connecting buckets A (43) are connected to the connecting bucket D (101) and another support pipe (14) through connecting pipes B and C, respectively.

4. The pretreatment device for cleaning rhizomes and other medicinal materials according to claim 1, characterized in that, The inner cylinder (3) has several through holes on its surface. The inner wall of the inner cylinder (3) has a rubber spiral. The outer side of the inner cylinder (3) is fitted with positioning rings near both ends. The outer side of the inner cylinder (3) is fitted with an external toothed ring (32) near one end. The outer cylinder (1) has a transmission structure (5) that works in conjunction with the external toothed ring (32). The transmission structure (5) is a combination of a motor, gearbox, sprocket and chain. The sprocket is connected to the external toothed ring (32) through the chain.

5. The pretreatment device for cleaning rhizomes and other medicinal materials according to claim 1, characterized in that, The support member (13) includes a support ring (131), which is connected to the end of the intermediate cylinder (2) and the inner cylinder (3). The surface of the support ring (131) has a plurality of support plates (132) distributed in a circular pattern. The support plates are located on the inner wall of the intermediate cylinder (2) near the end. The surface of the support ring (131) has a plurality of positioning wheels (133) distributed in a circular pattern. The positioning wheels (133) are distributed around the positioning ring and are opposite in position to the support plates (132).

6. The pretreatment device for cleaning rhizomes and other medicinal materials according to claim 1, characterized in that, The roller assembly has a support frame C (8) at the bottom, which is connected to two support tubes (14).

7. The pretreatment device for cleaning rhizomes and other medicinal materials according to claim 1, characterized in that, One end of the roller assembly has a feed inlet structure (6), and the other end of the roller assembly has a discharge outlet structure (7).

8. The pretreatment device for cleaning rhizomes and other medicinal materials according to claim 7, characterized in that, The feed inlet structure (6) includes a feed hopper (62) and a baffle (63). The baffle (63) is connected to a support ring (131). The feed hopper (62) is connected to the end of the lower cylinder (12) through a support frame A (61). The downward inclined end of the feed hopper (62) extends into the end of the inner cylinder (3).

9. A pretreatment device for cleaning rhizomes and other medicinal materials according to claim 7, characterized in that, The discharge port structure (7) includes a discharge hopper (72) located below the other end of the roller assembly, and the discharge hopper (72) is supported on the support frame C (8) by the support frame B (71).

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