Intelligent continuous drying system

Abstract

The invention relates to the technical field of medicinal material drying, and discloses an intelligent continuous drying system which comprises a conveying belt and a tunnel hot air drying module and further comprises a stacking module arranged above the conveying belt, and the stacking module comprises a driving shaft controlled by a controller to rotate in a reciprocating mode and a blocking seam adjusting plate capable of making contact with the surface of the conveying belt. The blocking seam-adjusting plate is fixed to the peripheral side of the driving shaft, the linear speed V2 of the edge, making contact with the surface of the conveying belt, of the blocking seam-adjusting plate is smaller than the conveying speed V1 of the conveying belt, and medicinal materials at the top of the conveying belt are distributed on the surface of the conveying belt at equal intervals in a triangular prism shape after passing through the stacking module; by means of the rotating direction and speed relation of the rotating blocking gap-adjusting plate and the conveying belt, on the basis that the blocking gap-adjusting plate rotates to adjust the height of the open channel, the medicinal materials are attached to the blocking gap-adjusting plate under the influence of kinetic energy of the conveying belt, and the rhizome medicinal materials are regularly distributed into triangular prisms or trapezoidal columns; and the flow distance of air passing through the regularly distributed rhizome sections is longer.

Description

Technical Field

[0001] The invention relates to the technical field of medicinal material drying, in particular to an intelligent continuous drying system. Background Art

[0002] Continuous drying of medicinal materials is mainly achieved by hot air tunnel dryers. The tunnel structure is more convenient for installing assembly lines, so that after the medicinal materials pass through the hot air tunnel, the hot air quickly removes the moisture on the surface and inside of the medicinal materials. The conveyor belt continuously feeds freshly processed medicinal materials, and the medicinal materials continuously enter the hot air tunnel dryer for drying, thereby achieving continuous drying.

[0003] Rhizomes are common in traditional Chinese medicine. They need to be collected and cleaned during processing. For the convenience of processing, the long rhizomes will also be cut into sections. Rhizomes are placed on the conveyor belt. Due to the three-dimensional shape of rhizomes, if they are spread too thin on the conveyor belt, although the drying efficiency can be improved, the drying amount is too low. If the rhizomes are spread out in a criss-cross manner to a certain thickness, although the drying amount can be increased, the criss-crossed rhizomes affect the air flow. The airflow is blown out through the side of the tunnel wall. When the width of the conveyor belt is large, it is affected by the criss-crossed rhizomes, so that the rhizomes near the middle of the conveyor belt will have many overhead windbreaks, making the distribution state of the drying of traditional Chinese medicine inconsistent. Summary of the invention

[0004] The purpose of the present invention is to provide an intelligent continuous drying system. The present invention utilizes the speed difference rotating plate interval adjustment method to horizontally distribute the rhizome medicinal materials into triangular prism piles on a continuously moving conveyor belt, and utilizes side ventilation to make the triangular surfaces and wind flow through the rhizome axial direction more easily, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] An intelligent continuous drying system, comprising a conveyor belt and a tunnel hot air drying module, and also comprising a stacking module arranged above the conveyor belt, the stacking module comprising a driving shaft controlled to reciprocate by a controller and a blocking seam adjusting plate capable of contacting the surface of the conveyor belt, the blocking seam adjusting plate being fixed on the peripheral side of the driving shaft, the linear speed V2 of the contact edge of the blocking seam adjusting plate with the surface of the conveyor belt being less than the conveying speed V1 of the conveyor belt, and the medicinal materials on the top of the conveyor belt are evenly distributed on the surface of the conveyor belt in the shape of triangular prisms after passing through the stacking module;

[0007] Following hot air modules corresponding to the triangular surfaces of the triangular prism medicinal material pile are arranged on both sides of the inner wall of the tunnel hot air drying module. The following hot air module includes a following moving plate that slides back and forth on the side of the tunnel hot air drying module and an air outlet arranged on the surface of the following moving plate.

[0008] As a further solution of the present invention: the following moving plate is controlled to reciprocate through an airflow following control module, and the airflow following control module includes a uniform speed pusher and a quick resetter. The uniform speed pusher controls the following moving plate to move in the same direction as the conveyor belt at a following speed V3, and the quick resetter controls the following moving plate to quickly reset after moving a certain distance, so that the air outlet corresponds to the subsequent triangular prism medicinal material pile.

[0009] As a further solution of the present invention: the width of the air outlet is greater than the bottom width of the triangular prism medicinal material pile, the following speed V3 of the following moving plate is greater than the conveying speed V1 of the conveyor belt, and in the initial state, the front end of the air outlet corresponds to the front edge of the triangular prism medicinal material pile, and when the following moving plate moves to the reset position due to the speed difference between the following speed V3 and the conveying speed V1, the rear edge of the air outlet is aligned with the rear edge of the triangular prism medicinal material pile.

[0010] As a further solution of the present invention: in the initial state, the blocking seam adjusting plate is perpendicular to the surface of the conveyor belt and contacts the conveyor belt, the rotation direction of the blocking seam adjusting plate in the released state is consistent with the movement direction of the conveyor belt, and when the blocking seam adjusting plate is opened to the maximum angle, the bottom edge of the blocking seam adjusting plate is flush with the lower end of the drive shaft.

[0011] As a further solution of the present invention: after the blocking seam adjusting plate is opened to the maximum angle, the rotation direction of the driving shaft is switched so that the movement direction of the blocking seam adjusting plate is opposite to the movement direction of the conveyor belt. When the blocking seam adjusting plate is rotated to a state perpendicular to the conveyor belt, the rotation direction is switched again.

[0012] As a further solution of the present invention: after the blocking seam adjusting plate is opened to the maximum angle, the driving shaft remains locked and the switching of the rotation direction is delayed, so that the movement direction of the blocking seam adjusting plate is opposite to the movement direction of the conveyor belt.

[0013] As a further solution of the present invention: when the blocking seam adjusting plate rotates to a state perpendicular to the conveyor belt, the rotation direction is switched delayed.

[0014] As a further solution of the present invention: the number of the stacking modules is set to be multiple, and the stacking modules are arranged in front of the entrance end of the tunnel hot air drying module, inside the tunnel hot air drying module, or at the discharge end of the tunnel hot air drying module, and the stacking modules stack and flatten the medicinal materials.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] The present invention mainly solves the problem that if rhizome medicinal materials are spread too thickly on the conveyor belt due to their three-dimensional shape, they will be affected by the criss-cross three-dimensional structure. When the medicinal materials in the middle and lower layers receive hot air from the side walls, the hot air is affected by the criss-cross structure, so that a large amount of closed space in the middle of the paving layer cannot be affected by the hot air.

[0017] The present invention utilizes the relationship between the rotation direction and speed of the rotating barrier and seam-adjusting plate and the conveyor belt, so that when the barrier and seam-adjusting plate rotates to adjust the height of the open channel, the medicinal materials are affected by the kinetic energy of the conveyor belt and fit into the barrier and seam-adjusting plate, so that the rhizome medicinal materials are regularly distributed in the shape of a triangular prism or a trapezoidal column, the wind flows through the regularly distributed rhizome cross-section for a longer distance, the space closed area is greatly reduced under the influence of the regular distribution, and the heat exchange area is increased through the triangular surface, and the problem of reciprocating follow-blowing and continuous feeding is solved at the same time, so that the triangular prism-shaped medicinal material pile can achieve the effect of follow-blowing, and the medicinal materials are dried more evenly. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0019] Figure 1 A schematic diagram of a stacking module in an intelligent continuous drying system;

[0020] Figure 2 It is a schematic diagram of the composition of an intelligent continuous drying system;

[0021] Figure 3 It is a schematic diagram of the corresponding positions of the hot air module and the triangular prism medicinal material pile in an intelligent continuous drying system;

[0022] Figure 4 A schematic diagram of a stacking module and a conveyor belt in an intelligent continuous drying system;

[0023] Figure 5 It is a schematic diagram of an airflow following control module, a following hot air module and a conveyor belt in an intelligent continuous drying system;

[0024] Figure 6 It is a schematic diagram of an implementation method of a uniform speed pusher and a quick resetter in an intelligent continuous drying system;

[0025] In the figure: 1. Conveyor belt; 2. Stacking module; 21. Driving shaft; 22. Barrier seam adjustment plate; 3. Airflow following control module; 31. Uniform speed pusher; 32. Quick resetter; 4. Following hot air module; 41. Following moving plate; 42. Air outlet; 5. Tunnel hot air drying module. DETAILED DESCRIPTION

[0026] See also Figure 1-Figure 6In this embodiment: it includes a conveyor belt 1 and a tunnel hot air drying module 5, and also includes a stacking module 2 arranged above the conveyor belt 1. The stacking module 2 includes a driving shaft 21 controlled to reciprocate by a controller and a blocking and adjusting plate 22 that can contact the surface of the conveyor belt. The blocking and adjusting plate 22 is fixed on the peripheral side of the driving shaft 21. The linear speed V2 of the contact edge of the blocking and adjusting plate 22 with the surface of the conveyor belt is less than the conveying speed V1 of the conveyor belt. After the medicinal materials on the top of the conveyor belt 1 pass through the stacking module 2, they are evenly distributed on the surface of the conveyor belt in the shape of a triangular prism. After the blocking and adjusting plate 22 is opened to the maximum angle, the rotation direction of the driving shaft 21 is switched, so that the movement direction of the blocking and adjusting plate 22 is opposite to the movement direction of the conveyor belt. When the blocking and adjusting plate 22 rotates to a state perpendicular to the conveyor belt, the rotation direction is switched again.

[0027] In this embodiment: Please refer to Figure 1 , the washed and cut medicinal materials are transported to the conveyor belt 1. At this time, the driving shaft 21 controls the blocking and adjusting plate 22 to maintain a vertical state with the conveyor belt 1. The medicinal materials are blocked by the blocking and adjusting plate 22, so that the inclined medicinal materials are affected by the thrust of the conveyor belt 1 and the subsequent medicinal materials and fit the blocking and adjusting plate 22. The blocking and adjusting plate 22 spans the conveyor belt 1 and passes through Figure 2 It can be seen that the medicinal materials are distributed horizontally at the barrier seam adjusting plate 22. When the driving shaft 21 drives the barrier seam adjusting plate 22 to rotate, the distance between the bottom edge of the barrier seam adjusting plate 22 and the conveyor belt 1 is the channel for controlling the passage of medicinal materials. In the opening stage, the rotation direction of the barrier seam adjusting plate 22 is the same as the conveying direction of the conveyor belt 1, but the rotation line speed of the contact edge of the barrier seam adjusting plate 22 and the conveyor belt 1 is lower than the conveying speed of the conveyor belt 1. At this time, the medicinal materials always have a relative displacement with the barrier seam adjusting plate 22, so that the medicinal materials are transported by the conveyor belt 1 and the subsequent thrust of the medicinal materials acts on the barrier seam adjusting plate 22. As the barrier seam adjusting plate 22 is slowly lifted, the tip of the medicinal material pile is gradually formed. Then it rotates in the opposite direction, and the speed of the reverse rotation of the blocking and adjusting plate 22 can be controlled according to the demand. Therefore, the blocking and adjusting plate 22 moves in the opposite direction to the conveyor belt 1, and the medicinal materials always interact with the blocking and adjusting plate 22. Therefore, it can be ensured that the medicinal materials and the blocking and adjusting plate 22 are in contact with each other. When the blocking and adjusting plate 22 moves in the opposite direction, another inclined surface of the triangular prism medicinal material pile is formed until the blocking and adjusting plate 22 rotates to vertical to form a blocking gap.

[0028] In this embodiment: following hot air modules corresponding to the triangular surfaces of the triangular prism medicinal material pile are arranged on both sides of the inner wall of the tunnel hot air drying module, and the following hot air module includes a following moving plate 41 that slides back and forth on the side of the tunnel hot air drying module and an air outlet 42 arranged on the surface of the following moving plate 41.

[0029] In this embodiment: since the hot air inside the tunnel hot air drying module 5 needs to be discharged through the air outlet 42, the air outlet 42 and the following movable plate 41 are set to a mobile state, so that the air outlet 42 and the following movable plate 41 can follow the movement of the triangular prism medicinal material pile, and at the same time, the hot air blown out of the air outlet 42 enters through the triangular surface of the triangular prism medicinal material pile. Since the radial channel of the medicinal material is affected by the arrangement, it is easier for the hot air to act on the circumferential surface of the medicinal material. Compared with randomly distributed rhizome medicinal materials, the coverage of the rhizome circumferential surface completed by the wind is higher, and the triangular surface makes the wind pass better. In actual use, the height and spacing of the triangular prism medicinal material pile can be adjusted according to needs.

[0030] In this embodiment: the following moving plate 41 is controlled to reciprocate through the airflow following control module, and the airflow following control module includes a uniform speed pusher 31 and a quick resetter 32. The uniform speed pusher 31 controls the following moving plate 41 to move in the same direction as the conveyor belt at a following speed V3, and the quick resetter 32 controls the following moving plate 41 to quickly reset after moving a certain distance, so that the air outlet 42 corresponds to the subsequent triangular prism medicinal material pile.

[0031] In this embodiment: Since it is a continuous processing, the pile of medicinal materials after subsequent stacking will continuously enter the interior of the tunnel hot air drying module 5. In order to simplify the structure, a reciprocating design is adopted. After the following moving plate 41 follows the medicinal material pile for a distance, it is quickly reset, so that the air outlet 42 near the entrance end of the tunnel hot air drying module 5 can correspond to the medicinal material pile newly entering the tunnel hot air drying module 5, and follow the blowing and drying process.

[0032] In this embodiment: the width of the air outlet 42 is greater than the bottom width of the triangular prism medicinal material pile, the following speed V3 of the following movable plate 41 is greater than the conveying speed V1 of the conveyor belt, and in the initial state, the front end of the air outlet 42 corresponds to the front edge of the triangular prism medicinal material pile, and when the following movable plate 41 moves to the reset position with the speed difference between the following speed V3 and the conveying speed V1, the rear edge of the air outlet 42 is aligned with the rear edge of the triangular prism medicinal material pile.

[0033] In this embodiment: since the conveyor belt 1 is always in motion, when the following moving plate 41 is reset, the conveyor belt 1 continues to move. When the following moving plate 41 reaches the original position, the medicinal materials have traveled a certain distance. Therefore, the following moving plate 41 and the medicinal materials cannot correspond to each other. In order not to complicate the structure, the following settings are made: First, the width of the air outlet 42 is greater than the bottom width of the triangular prism medicinal material pile. Please refer to Figure 3In the initial state, the front end of the air outlet 42 corresponds to the front edge of the triangular prism medicinal material pile. Since the width of the air outlet 42 is greater than the width of the triangular prism medicinal material pile, there is a margin between the rear of the air outlet 42 and the medicinal material. Since the following speed V3 is greater than the conveying speed V1 of the conveyor belt, when the air outlet 42 moves to the limit distance, the rear end of the air outlet 42 is flush with the rear edge of the triangular prism medicinal material pile. At this time, a rapid reset is performed, and the displacement difference between the air outlet 42 and the medicinal material pile is used to compensate for the error caused by the constant movement of the conveyor belt 1, so that the reset air outlet 42 is aligned with the front edge of the triangular prism medicinal material pile newly entering the tunnel hot air drying module 5. The whole process has a simple structure and a short stroke. The design of the uniform speed pusher 31 and the rapid resetter 32 can be referred to. Figure 6 In the form of a spring and a missing-angle gear, rapid reset is achieved.

[0034] In the present embodiment: in the initial state, the blocking seam adjusting plate 22 is perpendicular to the surface of the conveyor belt and contacts the conveyor belt; the rotation direction of the blocking seam adjusting plate 22 in the released state is consistent with the movement direction of the conveyor belt; when the blocking seam adjusting plate 22 is opened to the maximum angle, the bottom edge of the blocking seam adjusting plate 22 is flush with the lower end of the driving shaft 21.

[0035] In this embodiment: since the bottom edge of the driving shaft 21 will also affect the height of the subsequent stacked medicinal materials, when the blocking and adjusting plate 22 is opened to the maximum angle, the bottom edge of the blocking and adjusting plate 22 is flush with the lower end of the driving shaft 21. At this time, the rotation direction of the adjusting plate 22 in the released state is consistent with the movement direction of the conveyor belt, and the channel height is slowly increased, thereby forming the tip height of the triangular pyramid medicinal material pile. For root and stem medicinal materials, the triangular stacking structure is more stable and easy to implement.

[0036] In this embodiment: after the blocking seam adjusting plate 22 is opened to the maximum angle, the driving shaft 21 remains locked and the switching of the rotation direction is delayed, so that the movement direction of the blocking seam adjusting plate 22 is opposite to the movement direction of the conveyor belt.

[0037] In this embodiment: if a trapezoidal cross-section is required, the blocking and adjusting plate 22 needs to be locked after opening to the maximum angle. At this time, after the inclined surface is generated, the top gradually forms a high plane, and then reverses to form a subsequent inclined surface, thereby forming a trapezoidal structure.

[0038] In this embodiment: when the blocking and adjusting plate 22 rotates to a state perpendicular to the conveyor belt, the rotation direction is switched delayedly. This method can adjust the spacing of the triangular prism medicinal material piles according to demand.

[0039] In this embodiment: the number of the stacking modules 2 is set to be multiple, and the stacking modules 2 are set in front of the entrance end of the tunnel hot air drying module 5 or inside the tunnel hot air drying module 5 or at the discharge end of the tunnel hot air drying module 5. The stacking modules 2 stack and flatten the medicinal materials. By setting the stacking modules 2, the whole drying process can be divided into steps. For example, after the three-sided pile is separated, it can also be spread through the subsequent stacking module 2 for bottom heating and drying instead of hot air drying, or in the subsequent packaging state, the medicinal materials can be stacked through the three-sided pile for easy collection and counting.

[0040] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An intelligent continuous drying system, comprising a conveyor belt (1) and a tunnel hot air drying module (5), characterized in that: It also comprises a stacking module (2) arranged above the conveyor belt (1), the stacking module (2) comprising a driving shaft (21) controlled to reciprocate by a controller and a blocking seam-adjusting plate (22) capable of contacting the surface of the conveyor belt (1), the blocking seam-adjusting plate (22) being fixed on the peripheral side of the driving shaft (21), the linear speed V2 of the contact edge of the blocking seam-adjusting plate (22) with the surface of the conveyor belt (1) being less than the conveying speed V1 of the conveyor belt (1), and the medicinal materials on the top of the conveyor belt (1) are evenly distributed on the surface of the conveyor belt (1) in the shape of triangular prisms after passing through the stacking module (2); Both sides of the inner wall of the tunnel hot air drying module (5) are provided with follow-up hot air modules (4) corresponding to the triangular faces of the triangular prism medicinal material pile, and the follow-up hot air module (4) comprises a follow-up movable plate (41) that slides back and forth on the side of the tunnel hot air drying module (5) and an air outlet (42) arranged on the surface of the follow-up movable plate (41).

2. An intelligent continuous drying system according to claim 1, characterized in that: The following moving plate (41) is controlled to reciprocate by an airflow following control module (3), and the airflow following control module (3) comprises a uniform speed pusher (31) and a quick resetter (32). The uniform speed pusher (31) controls the following moving plate (41) to move in the same direction as the conveyor belt (1) at a following speed V3, and the quick resetter (32) controls the following moving plate (41) to quickly reset after moving a certain distance, so that the air outlet (42) corresponds to the subsequent triangular prism medicinal material pile.

3. The intelligent continuous drying system according to claim 1, characterized in that: The width of the air outlet (42) is greater than the bottom width of the triangular prism medicinal material pile, the following speed V3 of the following movable plate (41) is greater than the conveying speed V1 of the conveyor belt (1), and in the initial state, the front end of the air outlet (42) corresponds to the front edge of the triangular prism medicinal material pile, and when the following movable plate (41) moves to the reset position with the speed difference between the following speed V3 and the conveying speed V1, the rear edge of the air outlet (42) is aligned with the rear edge of the triangular prism medicinal material pile.

4. The intelligent continuous drying system according to claim 1, characterized in that: In the initial state, the blocking seam adjusting plate (22) is perpendicular to the surface of the conveyor belt (1) and contacts the conveyor belt (1); in the released state, the rotation direction of the blocking seam adjusting plate (22) is consistent with the movement direction of the conveyor belt (1); when the blocking seam adjusting plate (22) is opened to the maximum angle, the bottom edge of the blocking seam adjusting plate (22) is flush with the lower end of the driving shaft (21).

5. The intelligent continuous drying system according to claim 4, characterized in that: After the blocking seam adjusting plate (22) is opened to the maximum angle, the rotation direction of the driving shaft (21) is switched so that the movement direction of the blocking seam adjusting plate (22) is opposite to the movement direction of the conveyor belt (1). When the blocking seam adjusting plate (22) is rotated to a state perpendicular to the conveyor belt (1), the rotation direction is switched again.

6. An intelligent continuous drying system according to claim 4, characterized in that: After the blocking seam adjusting plate (22) is opened to the maximum angle, the driving shaft (21) remains locked and the switching of the rotation direction is delayed, so that the movement direction of the blocking seam adjusting plate (22) is opposite to the movement direction of the conveyor belt (1).

7. The intelligent continuous drying system according to claim 1, characterized in that: When the blocking seam-adjusting plate (22) rotates to a state perpendicular to the conveyor belt (1), the rotation direction is switched with a delay.

8. The intelligent continuous drying system according to claim 1, characterized in that: The number of the stacking modules (2) is set to be multiple, and the stacking modules (2) are arranged in front of the entrance end of the tunnel hot air drying module (5) or inside the tunnel hot air drying module (5) or at the discharge end of the tunnel hot air drying module (5). The stacking modules (2) stack and flatten the medicinal materials.

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