Air regulating valve group and Chinese herbal medicine drying system with adjustable working modes

Abstract

The utility model belongs to the technical field of traditional Chinese medicine processing equipment, and relates to an air regulating valve bank which is characterized by comprising a valve body shell, a valve plate and a driving mechanism, the valve body shell is of a left-right through cylinder structure, and a valve body air inlet and a valve body air outlet are formed in the upper end face of the cylinder structure at intervals. And valve plates which are driven by a driving mechanism to turn over are arranged at the valve body air inlet and the valve body air outlet in the barrel structure. The utility model further relates to a Chinese herbal medicine drying system with the adjustable working mode. The drying system is achieved based on the air adjusting valve set. By adjusting the opening and closing angles of the valve plates at the valve body air inlet and the valve body air outlet, different working modes of the pill drying system are adjusted, the drying requirements of pills with different water contents are met, the purpose that one machine has multiple purposes is achieved, the production cost of an enterprise is saved, and the production layout of the enterprise is facilitated.

Description

Technical Field

[0001] This utility model belongs to the technical field of traditional Chinese medicine processing equipment, and relates to an air regulating valve and a traditional Chinese medicine dryer, specifically an air regulating valve assembly and a traditional Chinese medicine drying system with adjustable working mode. Background Technology

[0002] A traditional Chinese medicine (TCM) dryer is a common piece of equipment used for drying TCM herbs, which can take various forms including but not limited to pills and slices. The dryer, connected to components such as radiators, cyclone separators, and air ducts, forms a complete TCM drying system. Existing TCM drying systems require different operating modes depending on the moisture content of the herbs being processed. Current drying setups are categorized into two types based on their operating mode: self-circulating drying systems and direct-venting drying systems. When the material to be processed has low moisture content and low humidity, a self-circulating drying system is needed; when the material has high moisture content and high humidity, a direct-venting drying system is used to prevent moisture accumulation within the dryer.

[0003] A self-circulating drying system, such as the Chinese patent with publication number CN220355929U, discloses a patent entitled "A Built-in Large-Capacity Pill Dryer," which includes a drying chamber with an inlet and an outlet at both ends. Inside the drying chamber is a rotatable, mesh-like drum. The key feature is the inclusion of a hot air circulation system, including an inlet and an outlet, which circulates hot air within the drying chamber to dry the pills. A hot air duct is located inside the drum and connects to the inlet of the hot air circulation system, delivering the hot air into the drum. This hot air circulation system improves the utilization rate of the drying hot air resources.

[0004] A direct-flow drying system, such as the Chinese patent with publication number CN222438358U, discloses a patent entitled "Dynamic Airflow Dryer for Traditional Chinese Medicine Pieces." This system includes a casing containing a drum and a support frame. The drum is located on top of the support frame. A rotatable base plate is located at the bottom of the casing. A feed cover and a discharge cover are located at both ends of the casing. A cylinder is located on the upper part of the rotatable base plate, with its upper end fixedly connected to the support frame and its lower end rotatably connected to the rotatable base plate. An upper air outlet duct is located at the top of the casing. The support frame includes an upper hot air partition plate, a lower hot air partition plate, and a surrounding plate. Both the upper and lower hot air partition plates slide against the drum. The surrounding plate is located between the upper and lower hot air partition plates and below the drum. The drum has evenly distributed air inlets. The support frame also includes a motor, a lower air outlet duct, and an air inlet duct. This dynamic airflow dryer for Chinese herbal medicine slices features a rotating drum with hot airflow that allows for rapid heat exchange and dehumidification. The drying temperature and pressure are naturally optimal, resulting in high-quality dried slices. Its automated operation and high efficiency make it highly practical and valuable for widespread application. The patented dryer's internal hot air is directly discharged through the outlet, preventing it from re-entering the dryer's interior. This effectively removes moisture from the dryer, further enhancing drying efficiency.

[0005] Currently, Chinese medicine manufacturers need to purchase different types of drying systems to process herbs with different moisture contents. This increases production costs and occupies space in the production workshop, which is not conducive to cost control and workshop planning.

[0006] Therefore, in order to meet the production needs of enterprises, it is essential to design a Chinese herbal medicine drying system that can adjust the working mode according to materials with different moisture contents. Summary of the Invention

[0007] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a pill drying system with a scientific and reasonable structural design, adjustable working mode, convenient operation, meeting production needs, and easy processing.

[0008] The technical problem solved by this utility model is achieved through the following technical solution:

[0009] An air regulating valve assembly is characterized in that it includes a valve body shell, a valve plate, and a driving mechanism. The valve body shell is a cylindrical structure that runs through the left and right sides. A valve body air inlet and a valve body air outlet are respectively provided at intervals on the upper end surface of the cylindrical structure. A valve plate driven to rotate by the driving mechanism is provided at both the valve body air inlet and the valve body air outlet inside the cylindrical structure.

[0010] Furthermore, the cylindrical structure is a rectangular cross-section cylinder, with upwardly extending connecting necks on the outer ring of both the valve body air inlet and the valve body air outlet. Connecting heads are provided on the connecting necks, and these connecting heads have a bottom-rounded structure. Connecting flanges are provided at both ends of the cylinder.

[0011] Furthermore, the drive mechanism includes bearings, a drive shaft, and a geared motor. Bearings are installed on the front and rear walls of the valve body housing, corresponding to the inner sides of the valve body air inlet and air outlet. A drive shaft is installed between the two bearings, with one end of the drive shaft extending from one of the bearings. This extended drive shaft is driven and mounted on the geared motor, and the valve plate is mounted on the drive shaft.

[0012] Furthermore, the drive shaft has a slot on its lower end face, and the valve plate is fitted into the slot. The valve plate and the slot of the drive shaft are connected by screws.

[0013] Furthermore, the valve plate includes a rubber plate and a stainless steel pressure plate that is screwed onto the upper and lower end faces of the rubber plate, with the rubber plate extending around the stainless steel pressure plate; both the rubber plate and the stainless steel pressure plate are composed of a horizontal portion and an inclined portion that is inclined upward on the outer side of the horizontal portion.

[0014] Furthermore, a sealing frame is installed inside the valve body housing on the inner side of both the valve body air inlet and the valve body air outlet. The sealing frame is an angle steel structure. The horizontal part of the angle steel structure is installed on the valve body housing by screws. One end of the rubber plate abuts against the vertical part of the angle steel structure, the two sides of the rubber plate abut against the front and rear walls of the valve body housing, and the inclined part of the other end of the rubber plate abuts against the upper wall of the valve body housing.

[0015] A Chinese herbal medicine drying system with adjustable working mode includes a dryer body, a radiator, and a cyclone separator. The radiator is installed at the air inlet at the top of the dryer body, and an air outlet pipe is connected to the air outlet at the rear of the dryer body. The system is characterized by further including an air regulating valve group, one end of which is connected to the air outlet pipe through an elbow pipe, and the other end of which is connected to the air inlet of the radiator.

[0016] Furthermore, it also includes a cooling mechanism, which includes a fresh air intake duct, a fresh air intake valve, and a main air intake duct. A fresh air intake duct is connected to the fresh air outlet of the radiator, and a fresh air intake valve is connected to the fresh air intake duct. The main air intake duct is a T-junction structure. One branch of the T-junction structure is connected to the fresh air intake valve, and the other two branches of the T-junction structure are arranged opposite each other and connected to the air inlet of the valve body of the air regulating valve assembly.

[0017] The advantages and positive effects of this utility model are:

[0018] 1. This adjustable air valve assembly and herbal medicine drying system allows for the adjustment of different operating modes of the pill drying system by regulating the opening and closing angle of the valve plate at the air inlet and outlet of the valve body. This meets the drying requirements of pills with different moisture contents, achieving the goal of multi-purpose use, saving production costs for enterprises, and facilitating production layout. This utility model has a compact structure; through the integrated design of the air valve assembly, it can simultaneously achieve the functions of multiple operating modes to meet production needs.

[0019] 2. This adjustable air valve assembly and the herbal medicine drying system with adjustable working modes, in conjunction with the pill-cooling mechanism, can achieve the purpose of rapid cooling of pills, which not only improves production efficiency, but also helps to save energy and reduce consumption.

[0020] 3. This utility model is scientifically and rationally designed, and has the advantages of adjustable working mode, convenient operation, meeting production needs, improving production efficiency, saving energy and reducing consumption, and easy processing. It is a highly innovative Chinese herbal medicine drying system with adjustable working mode. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of the pill drying system of this utility model;

[0022] Figure 2 This is a schematic diagram of the structure of the air regulating valve assembly of this utility model;

[0023] Figure 3 This is a cross-sectional view of the air regulating valve assembly of this utility model;

[0024] Figure 4 This is a side sectional view of the air regulating valve assembly of this utility model;

[0025] Figure 5 This is a schematic diagram of the assembly of the valve plate, drive shaft, and sealing frame at the air inlet and outlet of the valve body of this utility model.

[0026] Figure 6 This is a schematic diagram of the drive shaft of this utility model.

[0027] Explanation of reference numerals in the attached figures

[0028] 1-Elbow pipe, 2-Air regulating valve assembly, 3-Outlet pipe, 4-Main air inlet pipe, 5-Fresh air inlet valve, 6-Radiator, 7-Fresh air inlet pipe, 8-Fresh air outlet, 9-Dryer body, 10-Connecting flange, 11-Valve body outlet, 12-Gear motor, 13-Valve body inlet, 14-Valve plate, 15-Valve body shell, 16-Connecting neck, 17-Sealing frame, 18-Connector, 19-Bearing, 20-Drive shaft, 21-Glue plate, 22-Stainless steel pressure plate, 23-Slot. Detailed Implementation

[0029] The embodiments of this utility model will be further described in detail below with reference to the accompanying drawings:

[0030] A Chinese herbal medicine drying system with adjustable working mode includes a dryer body 9 and a radiator 6. The radiator is installed at the air inlet at the top of the dryer body to provide hot air for drying the pills inside the dryer body. An air outlet pipe 3 is provided at the air outlet at the rear of the dryer body. Its innovation lies in the fact that it also includes an air regulating valve group 2 for adjusting the working mode. One end of the air regulating valve group is connected to the air outlet pipe through an elbow pipe 1, and the other end of the air regulating valve group is connected to the air inlet of the radiator.

[0031] The air regulating valve assembly includes a valve body shell 15, a valve plate 14, and a drive mechanism for rotating the valve plate. The valve body shell is a cylindrical structure that runs through the left and right sides. A valve body air inlet 13 and a valve body air outlet 11 are respectively provided at intervals on the upper end surface of the cylindrical structure. A valve plate driven to rotate by the drive mechanism is provided at both the valve body air inlet and the valve body air outlet inside the cylindrical structure.

[0032] The cylindrical structure is a rectangular cross-section cylinder. Both the valve body inlet and outlet are rectangular. An upwardly extending connecting neck 16 is provided on the outer ring of both the valve body inlet and outlet. A connecting head 18 is provided on the connecting neck. To facilitate the connection of the pipeline, the connecting head has a bottom-rounded structure. A connecting flange 10 is provided at both ends of the cylinder. Both ends of the regulating valve assembly are connected to the outlet pipe and radiator through the connecting flange.

[0033] The drive mechanism includes a bearing 19, a drive shaft 20, and a geared motor 12. Bearings are installed on the front and rear walls of the valve body shell at positions corresponding to the inner sides of the valve body air inlet and air outlet. A drive shaft is installed between the two bearings. One end of the drive shaft extends out from one of the bearings and is driven and mounted on the gear reducer. The valve plate is mounted on the drive shaft.

[0034] To increase the reliability of the connection between the drive shaft and the valve plate, the drive shaft has a groove 23 on its lower end face, and the valve plate is fitted into the groove. The valve plate and the groove of the drive shaft are connected by screws.

[0035] The valve plate includes a rubber plate 21 and a stainless steel pressure plate 22 that is screwed onto the upper and lower end faces of the rubber plate. The rubber plate extends around the stainless steel pressure plate. Both the rubber plate and the stainless steel pressure plate are composed of a horizontal part and an inclined part that is inclined upward on the outside of the horizontal part.

[0036] A sealing frame 17 is installed inside the valve body housing, on the inner side of both the valve body inlet and outlet. The sealing frame is an angle steel structure. The horizontal part of the angle steel structure is mounted on the valve body housing with screws. One end of the rubber plate abuts against the vertical part of the angle steel structure, both sides of the rubber plate abut against the front and rear walls of the valve body housing, and the other inclined end of the rubber plate abuts against the upper wall of the valve body housing. The rubber plate is used to form a sealing structure in contact with the surrounding area, and a stainless steel pressure plate is used to strengthen the rubber plate.

[0037] To enable the dried pills to cool down quickly, this invention also includes a pill-cooling mechanism. The pill-cooling mechanism includes a fresh air inlet pipe 7, a fresh air inlet valve 5, and a main air inlet pipe 4. The fresh air inlet pipe is connected to the fresh air outlet 8 of the radiator, and the fresh air inlet valve is connected to the fresh air inlet pipe. The main air inlet pipe is a T-junction structure. One branch of the T-junction structure is connected to the fresh air inlet valve, and the other two branches of the T-junction structure are arranged opposite each other and connected to the air inlet of the valve body of the air regulating valve group.

[0038] This adjustable herbal medicine drying system features hot air circulation mode, hot air direct exhaust mode, simultaneous exhaust and circulation mode, and cooling pill mode.

[0039] Hot air circulation mode:

[0040] Each geared motor drives its corresponding valve plate to a horizontal position. At this time, the air inlet and outlet of the valve body of the air regulating valve group are closed, the fresh air inlet valve is closed, and the valve body shell of the cylindrical structure is connected on both sides. Hot air circulates throughout the entire system, achieving the purpose of energy saving.

[0041] Hot air direct exhaust mode:

[0042] Each geared motor drives its corresponding valve plate to rotate downwards, with the free end of each valve plate abutting the bottom of the valve body shell. At this time, the air inlet and outlet of the valve body of the air regulating valve assembly are fully open, the left and right sides of the valve body shell of the cylindrical structure are not connected, the fresh air inlet valve is closed, and natural air enters through the valve body inlet, is converted into hot air by the radiator, and then enters the dryer body to dry the pills. Afterwards, it is drawn out by the high-pressure fan, passes through the cyclone separator, and is directly discharged through the valve body outlet. The direct discharge mode can carry away the moisture from the dried pills, avoiding the problem of moisture circulating in the system and affecting the drying efficiency of the pills.

[0043] Looping while sorting:

[0044] Each geared motor drives its corresponding valve plate to rotate downwards. The free end of each valve plate is a certain distance from the bottom of the valve body shell. At this time, the air inlet and outlet of the regulating valve assembly can complete air intake and exhaust, and the left and right sides of the valve body shell of the cylindrical structure can be connected. The fresh air inlet valve is closed, realizing a mode where part of the hot air is circulated and part is exhausted. This mode can avoid the problem of pellet cracking caused by sudden drying of the pellets.

[0045] Cool Pill Mode:

[0046] The geared motor drives the valve plate at the air outlet of the valve body to open, and drives the valve plate at the air inlet of the valve body to close completely. The fresh air inlet valve opens, and at this time, natural air enters the fresh air inlet pipe from the main air inlet pipe and enters the dryer body from the fresh air outlet of the radiator. It blows cold air on the pellets in the chamber, accelerates the cooling effect, and avoids the problem of low cooling efficiency caused by having to pass through the radiator.

[0047] Although embodiments and drawings of the present invention have been disclosed for illustrative purposes, those skilled in the art will understand that various substitutions, variations and modifications are possible without departing from the spirit and scope of the present invention and the appended claims. Therefore, the scope of the present invention is not limited to the contents disclosed in the embodiments and drawings.

Claims

1. An air regulating valve assembly, characterized in that: The device includes a valve body shell, a valve plate, and a drive mechanism. The valve body shell is a cylindrical structure that runs through the left and right sides. A valve body air inlet and a valve body air outlet are respectively provided at intervals on the upper end surface of the cylindrical structure. A valve plate driven to rotate by the drive mechanism is provided at both the valve body air inlet and the valve body air outlet inside the cylindrical structure.

2. The air regulating valve assembly according to claim 1, characterized in that: The cylindrical structure is a rectangular cross-section cylinder. Both the air inlet and outlet of the valve body are provided with upwardly extending connecting necks. Connecting heads are provided on the connecting necks. The connecting heads have a bottom-rounded structure. Connecting flanges are provided at both ends of the cylinder.

3. The air regulating valve assembly according to claim 1, characterized in that: The drive mechanism includes bearings, a drive shaft, and a geared motor. Bearings are installed on the front and rear walls of the valve body housing, corresponding to the inner sides of the valve body air inlet and air outlet. A drive shaft is installed between the two bearings. One end of the drive shaft extends out from one of the bearings and is driven and mounted on the geared motor. The valve plate is mounted on the drive shaft.

4. The air regulating valve assembly according to claim 3, characterized in that: The drive shaft has a slot on its lower end face, and the valve plate is fitted into the slot. The valve plate and the slot of the drive shaft are connected by screws.

5. The air regulating valve assembly according to claim 1, characterized in that: The valve plate includes a rubber plate and a stainless steel pressure plate that is screwed onto the upper and lower end faces of the rubber plate. The rubber plate extends around the stainless steel pressure plate. Both the rubber plate and the stainless steel pressure plate are composed of a horizontal part and an inclined part that is inclined upward on the outside of the horizontal part.

6. The air regulating valve assembly according to claim 5, characterized in that: A sealing frame is installed inside the valve body housing on the inner side of both the valve body air inlet and the valve body air outlet. The sealing frame is an angle steel structure. The horizontal part of the angle steel structure is installed on the valve body housing by screws. One end of the rubber plate abuts against the vertical part of the angle steel structure, the two sides of the rubber plate abut against the front and rear walls of the valve body housing, and the inclined part of the other end of the rubber plate abuts against the upper wall of the valve body housing.

7. A Chinese herbal medicine drying system with adjustable working mode, comprising a dryer body, a radiator, and a cyclone separator, wherein a radiator is installed at the air inlet at the top of the dryer body, and an air outlet pipe is provided at the air outlet at the rear of the dryer body, characterized in that: It also includes the air regulating valve assembly as described in any one of claims 1-6, wherein one end of the air regulating valve assembly is connected to the air outlet pipe via an elbow pipe, and the other end of the air regulating valve assembly is connected to the air inlet of the radiator.

8. A Chinese herbal medicine drying system with adjustable working mode according to claim 7, characterized in that: It also includes a cooling mechanism, which includes a fresh air inlet duct, a fresh air inlet valve, and a main air inlet duct. A fresh air inlet duct is connected to the fresh air outlet of the radiator, and a fresh air inlet valve is connected to the fresh air inlet duct. The main air inlet duct is a T-junction structure. One branch of the T-junction structure is connected to the fresh air inlet valve, and the other two branches of the T-junction structure are arranged opposite each other and connected to the air inlet of the valve body of the air regulating valve group.

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