A high efficiency air separation device

Abstract

The application relates to the technical field of traditional Chinese medicine decoction piece processing, and provides a high-efficiency air selection equipment, which comprises a rack, a feeding hopper, a frame, an exhaust fan, an air manifold, a blower, a lower hopper and a conveying belt, glass windows are sealingly arranged on the outer side walls of the frame, and the glass windows are surrounded to form cavities; the feeding hopper is arranged at the upper end of the frame and communicates with the cavities; the lower hopper is arranged at the lower end of the frame and communicates with the cavities, the air manifold is arranged above the lower hopper and is used for blowing up dust of traditional Chinese medicine decoction pieces, the blower communicates with the air manifold and is used for supplying air to the air manifold; the exhaust fan is arranged on the frame, a negative pressure area of the exhaust fan communicates with the cavities; and the conveying belt is rotatably connected to the rack and is used for conveying the traditional Chinese medicine decoction pieces after air selection. The application has the effect of reducing the influence of dust on the surrounding environment during the air selection process of the traditional Chinese medicine decoction pieces.

Description

Technical Field

[0001] This application relates to the field of traditional Chinese medicine decoction piece processing technology, and in particular to a high-efficiency air separation device. Background Technology

[0002] Traditional Chinese medicine (TCM) decoction pieces are TCM herbs that have undergone processing according to TCM theory and methods, and are ready for direct use in TCM clinical practice. TCM decoction pieces include sliced ​​herbs processed at their place of origin, whole herbs, and herbs that have undergone cutting or processing. The primary source of TCM decoction pieces is TCM herbs, which include plants, animals, and minerals. These raw materials undergo steps such as harvesting, drying, cleaning, cutting, and processing to ultimately form TCM decoction pieces ready for clinical use. The processing methods for TCM herbs are diverse, mainly depending on the type and characteristics of the herbs. Generally, after harvesting, herbs are processed promptly, a process known as on-site processing, which mainly includes washing, impurity removal, and drying to purify the herbs and prevent mold growth. TCM decoction pieces are numerous and can be categorized according to their processing methods. For example, based on processing method, they can be divided into cleaning, cutting, and processing; based on processing method, they can be divided into stir-frying, charring, frosting, winemaking, vinegar making, salt making, and honey making.

[0003] In the processing of Chinese medicinal herbs, air separation is an important method for removing impurities. Air separation mainly utilizes the difference in suspension velocity between Chinese medicinal materials and impurities, using wind power to remove impurities. Its purpose is to remove light impurities. Its main function is to separate the medicinal materials and impurities according to their specific gravity and surface area under the action of a straight airflow. Specifically, a straight airflow can carry medicinal materials or impurities with larger surface areas or smaller specific gravity to a farther place in the horizontal direction, while medicinal materials or impurities with smaller surface areas or larger specific gravity are thrown a shorter distance in the horizontal direction due to inertia, thereby achieving the separation of medicinal materials and impurities.

[0004] Existing air separation and impurity removal devices use airflow to blow away lighter impurities such as broken leaves. However, some Chinese medicinal materials containing impurities include dust. When the airflow of the air separation and impurity removal device blows away the dust, it spreads, making it difficult to collect. The dust is discharged from the casing through the outlet of the medicinal materials containing impurities, polluting the processing environment, causing a decline in air quality, and harming the health of operators. Therefore, improvements are needed. Utility Model Content

[0005] To reduce the impact of dust on the surrounding environment during the air separation process of traditional Chinese medicine decoction pieces, this application provides a high-efficiency air separation device.

[0006] The high-efficiency air separation device provided in this application adopts the following technical solution: A high-efficiency air separation device includes a frame, a feed hopper, a frame, an exhaust fan, an air manifold, a blower, a discharge hopper, and a conveyor belt. The frame is mounted on the frame, and glass windows are sealed on the outer side wall of the frame, with each glass window forming a cavity. The feed hopper is located at the upper end of the frame and communicates with the cavity. The discharge hopper is located at the lower end of the frame and communicates with the cavity. The air manifold is located above the discharge hopper and is used to blow up dust from Chinese medicinal herbs. The blower is connected to the air manifold and is used to supply air to the air manifold. The exhaust fan is mounted on the frame, and the negative pressure zone of the exhaust fan is connected to the cavity; the conveyor belt is rotatably connected to the frame, and the conveying surface of the conveyor belt is located below the hopper, for conveying the Chinese herbal medicine slices after air separation.

[0007] By adopting the above technical solution, during production, the blower is first turned on and the wind speed is set according to the material state. Then, the Chinese herbal medicine slices are fed into the frame through the feed hopper. When the slices fall to near the top of the air manifold, the upward airflow from the manifold blows the material, and the dust and impurities blown up are discharged by the exhaust fan. Heavier slices fall into the discharge hopper and eventually onto the conveyor belt for easy collection later. Throughout the air separation process, dust is confined within a relatively enclosed space formed by the frame and glass windows, preventing dust from escaping and reducing its impact on the surrounding environment. The glass windows allow light to pass through, enabling staff to observe the air separation process and adjust the blower power accordingly.

[0008] An exhaust fan is a device that achieves ventilation by exhausting air from indoors and outdoors. It mainly consists of components such as a motor, impeller, air inlet, and casing. The motor drives the impeller to rotate, generating negative pressure to extract gas and effectively promote airflow. Air ducts can be connected to the exhaust fan, allowing the extracted dust and impurities to be transported along the ducts for convenient centralized dust collection.

[0009] Preferably, it also includes an air supply pipe, one end of which is connected to the blower and the other end extends into the cavity. The air manifold has a plurality of air holes, which are linearly distributed and face the feed hopper. The air manifold is provided in a plurality of manner, and each air manifold is connected to the air supply pipe and is radially distributed.

[0010] By adopting the above technical solution, the airflow generated by the blower is delivered to each branch pipe through the air supply pipe. The airflow is blown from bottom to top through the air holes, and the direction of airflow is opposite to the direction in which the Chinese herbal medicine pieces fall, so as to remove dust and impurities from the Chinese herbal medicine pieces. The radial distribution of each air manifold can increase the blowing range and improve the air separation effect.

[0011] Preferably, the conveyor belt also includes baffles, which are disposed on both sides of the long side of the conveyor belt, and the two baffles are used to limit the movement of the Chinese herbal medicine pieces.

[0012] By adopting the above technical solution, the baffle can block and limit the movement of Chinese herbal medicine pieces on the conveyor belt, preventing them from falling off the conveyor belt.

[0013] Preferably, the baffle is detachably connected to the top of the conveyor belt, a connecting column is connected to the baffle, a connecting plate is connected to the connecting column, and the end of the connecting plate away from the connecting column is locked to the frame by fastening bolts.

[0014] By adopting the above technical solution, the fastening bolts pass through the connecting plate and are screwed onto the frame. The baffle can be disassembled by means of screwing, which makes it convenient to disassemble and clean the baffle separately.

[0015] Preferably, the device further includes a first limiting plate and a second limiting plate. The first limiting plate is disposed at the lower end of the feed hopper and is inclined. The second limiting plate is also connected to the lower end of the feed hopper and is inclined toward the first limiting plate. The first limiting plate and the second limiting plate have different inclination angles. The end of the second limiting plate away from the feed hopper is located below the end of the first limiting plate away from the feed hopper. A zigzag feeding cavity is formed between the first limiting plate and the second limiting plate.

[0016] By adopting the above technical solution, after the Chinese herbal medicine pieces enter the feeding hopper, they will fall onto the first and second limiting plates under their own gravity, and then enter the cavity along the inclined surface of the second limiting plate. Before air separation, the Chinese herbal medicine pieces first pass through the feeding chamber and then enter the cavity. By setting the first and second limiting plates to form a zigzag segment feeding chamber, the influence of the airflow from the lower air manifold on the feeding of the Chinese herbal medicine pieces can be reduced.

[0017] Preferably, the assembly further includes a linear cylinder, a rack, a gear, and a cam. The gear is rotatably connected inside the frame. The rack is horizontally movable and meshes with the gear. The linear cylinder is connected to the rack and is used to control the movement of the rack. The cam is coaxially arranged with the gear and is used to impact the first limiting plate. Both the first limiting plate and the second limiting plate are rotatably connected to the feed hopper, and the first limiting plate and the second limiting plate are connected by a connecting rope.

[0018] By adopting the above technical solution, when the linear cylinder controls the rack to move horizontally, the meshing of the gear and rack causes the rack to drive the gear to rotate, which in turn drives the cam to rotate. The long axis of the cam can strike the first limiting plate, causing the first limiting plate to rotate. Due to the presence of the connecting rope, the rotation of the first limiting plate can also drive the second limiting plate to rotate. When the long axis of the cam no longer abuts against the first limiting plate, the first and second limiting plates can automatically reset under their own gravity. By controlling the reciprocating movement of the linear cylinder, the periodic impact of the cam is achieved, causing the first and second limiting plates to vibrate, so that the Chinese herbal medicine pieces can fall better into the cavity for the air separation process.

[0019] Preferably, a pair of drive rollers are connected to the frame, the drive rollers are rotated by a motor, and the two drive rollers are used to tension the two ends of the conveyor belt.

[0020] By adopting the above technical solution, the flexibility of the conveyor belt allows it to bypass the two drive rollers to form a closed loop. The drive rollers are driven to rotate by an electric motor, and the friction force drives the ring conveyor belt to run continuously. The Chinese herbal medicine slices are placed on the surface of the conveyor belt and move synchronously with it.

[0021] Preferably, both the feed hopper and the discharge hopper are cone-shaped.

[0022] By adopting the above technical solution, the conical feeding hopper and discharging hopper enable the Chinese herbal medicine slices to enter through a large opening and exit through a small opening.

[0023] In summary, this application includes at least one of the following beneficial technical effects: (1) By setting up frames and glass windows, during wind separation, dust is confined within a relatively enclosed space formed by the frames and glass windows, preventing dust from spreading everywhere and reducing the impact of dust on the surrounding environment.

[0024] (2) By setting baffles, the baffles can block and limit the Chinese medicine slices on the conveyor belt, preventing the Chinese medicine slices from falling off the conveyor belt.

[0025] (3) By setting a cam, the cam can generate an impact force on the first limiting plate, which promotes the Chinese medicine slices on the first and second limiting plates to enter the cavity smoothly for air separation. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the air separation device in Embodiment 1 of this application; Figure 2 This is a side view of the air classifier in Embodiment 1 of this application; Figure 3 This is a side view of the air classifier in Embodiment 2 of this application.

[0027] Reference numerals: 1. Frame; 2. Feed hopper; 3. Frame; 4. Glass window; 5. Exhaust fan; 6. Air manifold; 7. Blower; 8. Discharge hopper; 9. Conveyor belt; 10. Cavity; 11. Air supply pipe; 12. Air hole; 13. Drive roller; 14. Baffle; 15. Connecting column; 16. Connecting plate; 17. Fastening bolt; 18. First limit plate; 19. Second limit plate; 20. Discharge chamber; 21. Linear cylinder; 22. Rack; 23. Gear; 24. Cam; 25. Connecting rope. Detailed Implementation

[0028] The technical solutions of this application will now be described with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. This application can be embodied in many different forms and is not limited to the embodiments described herein.

[0029] In the representation of this application, the reference to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., means that a specific feature, structure, material, or characteristic represented in connection with that embodiment or example is included in at least one embodiment or example of this application. Moreover, the specific features, structures, materials, or characteristics represented may be combined in any suitable manner in one or more embodiments or examples.

[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0031] In the description of the embodiments of this application, unless otherwise expressly specified and limited, the technical terms "installation," "connection," "joining," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection; a detachable connection; an integral part; or a mechanical connection. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application according to the specific circumstances.

[0032] The following detailed description of some embodiments of this application is provided in conjunction with the accompanying drawings. Without conflict, those skilled in the art can combine and integrate the different embodiments or examples shown in this application, as well as the features of those embodiments or examples.

[0033] Example 1 This application discloses a high-efficiency air separation device. (Refer to...) Figure 1 and Figure 2The air separation equipment includes a frame 1, a feed hopper 2, a frame 3, glass windows 4, an exhaust fan 5, an air manifold 6, a blower 7, a discharge hopper 8, and a conveyor belt 9. The frame 1 serves as a supporting carrier and is fixedly installed on the ground. The frame 3 is fixedly installed on the frame 1. An opening is formed through the outer wall of the frame 3, and a glass window 4 is sealed at the opening. The glass windows 4 enclose a rectangular cavity 10, which serves as the air separation area for the Chinese herbal medicine slices. The feed hopper 2 is installed at the upper end of the frame 3 and communicates with the cavity 10; the discharge hopper 8 is fixedly installed at the lower end of the frame 3 and also communicates with the cavity 10. The Chinese herbal medicine slices enter the cavity 10 from the feed hopper 2, undergo air separation, and then exit from the discharge hopper 8. In this embodiment, both the feed hopper 2 and the discharge hopper 8 are conical in shape.

[0034] The air manifold 6 is located above the feed hopper 8 and is used to blow the dust from the Chinese herbal medicine slices upwards. The blower 7 is connected to the air manifold 6 via the air supply pipe 11 and supplies air to the air manifold 6. One end of the air supply pipe 11 is connected to the blower 7, and the other end extends into the cavity 10. Several air holes 12 are provided on the air manifold 6, arranged in a straight line along the length of the air manifold 6, and all air holes 12 face the feed hopper. Several air manifolds 6 are arranged horizontally, each connected to the air supply pipe 11, and the air manifolds 6 are radially distributed.

[0035] An exhaust fan 5 is mounted on the frame 3. The negative pressure zone of the exhaust fan 5 is connected to the cavity 10. The exhaust fan 5 is used to discharge dust from the cavity 10 through the frame 3. A duct can be connected to the exhaust fan 5 to transport the discharged dust. A drive belt 9 is rotatably connected to the frame 1. The conveying surface of the conveyor belt 9 is located below the hopper 8 and is used to transport the air-separated Chinese herbal medicine slices. The conveyor belt 9 is transported by a pair of drive rollers 13. The drive rollers 13 are rotatably connected to the frame 1 by a motor. The two drive rollers 13 are located at both ends of the conveyor belt 9 and are used to tension the conveyor belt 9.

[0036] During production, the blower 7 is first turned on and the air speed is set according to the material condition. Then, the Chinese herbal medicine slices are fed into the frame 3 through the feed hopper 2. When the Chinese herbal medicine slices fall to the vicinity of the air manifold 6, the upward airflow from the air manifold 6 can blow the material, and the dust and impurities blown up are discharged by the exhaust fan 5. The heavier Chinese herbal medicine slices will fall into the discharge hopper 8 and finally fall onto the conveyor belt 9 for easy collection later. Throughout the air separation process, the dust is confined within the relatively enclosed space formed by the frame 3 and the glass window 4, preventing the dust from escaping and reducing the impact of dust on the surrounding environment.

[0037] Specifically, baffles 14 are detachably connected to both sides of the long side of the conveyor belt 9, and the baffles 14 are set along the transmission direction of the conveyor belt 9. The baffles 14 can block and limit the Chinese herbal medicine pieces on the conveyor belt 9 to prevent them from falling off the conveyor belt 9. A connecting post 15 is fixedly connected to the baffle 14, and a connecting plate 16 is fixedly connected to the end of the connecting post 15 away from the baffle 14. The connecting plate 16 is locked to the frame 1 by fastening bolts 17. The fastening bolts 17 pass through the connecting plate 16 and are screwed to the frame 1, which makes it convenient for the staff to remove the baffles 14 for cleaning.

[0038] In addition, the feed hopper 2 is also equipped with a first limiting plate 18 and a second limiting plate 19. The first limiting plate 18 is located at the lower end of the feed hopper 2 and is inclined. The second limiting plate 19 is also located at the lower end of the feed hopper 2 and is inclined toward the first limiting plate 18. The first limiting plate 18 and the second limiting plate 19 are in an inverted V-shape. The inclination angles of the first limiting plate 18 and the second limiting plate 19 are different. The end of the second limiting plate 19 away from the feed hopper 2 is located below the end of the first limiting plate 18 away from the feed hopper 2. The first limiting plate 18 and the second limiting plate 19 form a zigzag-shaped discharge cavity 20, which is connected to the cavity 10.

[0039] After the Chinese herbal medicine pieces enter the feed hopper 2, they fall onto the first limiting plate 18 and the second limiting plate 19 under their own gravity, and then enter the cavity 10 along the inclined surface of the second limiting plate 19. Before air separation, the Chinese herbal medicine pieces first pass through the feeding chamber 20 and then enter the cavity 10. By setting the feeding chamber 20, which forms a zigzag segment with the first limiting plate 18 and the second limiting plate 19, the influence of the airflow from the lower air manifold 6 on the feeding of the Chinese herbal medicine pieces can be reduced.

[0040] The implementation principle of the high-efficiency air separation equipment in this application embodiment is as follows: During production, the blower 7 is first turned on and the wind speed is set according to the material state. Then, the Chinese herbal medicine slices are fed into the frame 3 through the feed hopper 2. When the Chinese herbal medicine slices fall naturally to the top near the air manifold 6, the upward airflow of the air manifold 6 can blow the material, and the dust and impurities blown up are discharged by the exhaust fan 5. The heavier Chinese herbal medicine slices will fall into the discharge hopper 8 and finally fall onto the conveyor belt 9 for easy collection later. During the entire air separation process, the dust is confined within the relatively closed space formed by the frame 3 and the glass window 4, preventing the dust from escaping everywhere and reducing the impact of dust on the surrounding environment.

[0041] Example 2 This application also provides an embodiment 2, which is referred to... Figure 3The difference between Embodiment 2 and Embodiment 1 is that the air separation device further includes a linear cylinder 21, a rack 22, a gear 23, and a cam 24. The gear 23 is rotatably connected inside the frame 3. The rack 22 is horizontally movable and meshes with the gear 23. The piston rod of the linear cylinder 21 is connected to the rack 22 to control the movement of the rack 22. The cam 24 is coaxially arranged with the gear 23 and is close to the first limiting plate 18 to impact the first limiting plate 18. One end of the first limiting plate 18 and one end of the second limiting plate 19 can be rotatably connected to the feed hopper 2. The first limiting plate 18 and the second limiting plate 19 are connected by a connecting rope 25.

[0042] When the linear cylinder 21 controls the rack 22 to move horizontally, the rack 22 can drive the gear 23 to rotate due to the meshing of the gear 23 and the rack 22. The gear 23 then drives the cam 24 to rotate, and the long shaft of the cam 24 can strike the first limiting plate 18, causing the first limiting plate 18 to rotate. Due to the presence of the connecting rope 25, the rotation of the first limiting plate 18 can also drive the second limiting plate 19 to rotate. When the long shaft of the cam 24 no longer abuts against the first limiting plate 18, the first limiting plate 18 and the second limiting plate 19 can automatically reset under their own gravity. By controlling the reciprocating movement of the linear cylinder 21, the cam 24 is periodically struck, causing the first limiting plate 18 and the second limiting plate 19 to vibrate, so that the Chinese herbal medicine pieces can fall better into the cavity 10 for the air separation process.

[0043] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A high-efficiency air separation device, characterized in that, The system includes a frame (1), a feed hopper (2), a frame (3), an exhaust fan (5), an air manifold (6), a blower (7), a discharge hopper (8), and a conveyor belt (9). The frame (3) is mounted on the frame (1). A glass window (4) is sealed on the outer wall of the frame (3), and each glass window (4) encloses a cavity (10). The feed hopper (2) is located at the upper end of the frame (3) and is connected to the cavity (10). The discharge hopper (8) is located at the lower end of the frame (3) and is connected to the cavity (10). The air manifold (6) is located above the discharge hopper (8) and is used to blow up the dust of Chinese herbal medicine slices. The blower (7) is connected to the air manifold (6) and is used to supply air to the air manifold (6). The exhaust fan (5) is mounted on the frame (3), and the negative pressure zone of the exhaust fan (5) is connected to the cavity (10); the conveyor belt (9) is rotatably connected to the frame (1), and the conveying surface of the conveyor belt (9) is located below the hopper (8) for conveying the Chinese herbal medicine slices after air separation.

2. The high-efficiency air separation device according to claim 1, characterized in that, It also includes an air supply pipe (11), one end of which is connected to the blower (7), and the other end extends into the cavity (10). The air manifold (6) has several air holes (12), each of which is linearly distributed and faces the feed hopper (2). The air manifold (6) has several air holes, each of which is connected to the air supply pipe (11) and is radially distributed.

3. The high-efficiency air separation device according to claim 1, characterized in that, It also includes baffles (14), which are located on both sides of the long side of the conveyor belt (9), and the two baffles (14) are used to limit the movement of the Chinese medicine slices.

4. The high-efficiency air separation device according to claim 3, characterized in that, The baffle (14) is detachably connected to the top of the conveyor belt (9). A connecting column (15) is connected to the baffle (14), and a connecting plate (16) is connected to the connecting column (15). One end of the connecting plate (16) away from the connecting column (15) is locked to the frame (1) by a fastening bolt (17).

5. The high-efficiency air separation device according to claim 1, characterized in that, It also includes a first limiting plate (18) and a second limiting plate (19). The first limiting plate (18) is located at the lower end of the feed hopper (2) and is inclined. The second limiting plate (19) is also connected to the lower end of the feed hopper (2) and is inclined toward the first limiting plate (18). The first limiting plate (18) and the second limiting plate (19) have different inclination angles. The end of the second limiting plate (19) away from the feed hopper (2) is located below the end of the first limiting plate (18) away from the feed hopper (2). A zigzag feeding cavity (20) is formed between the first limiting plate (18) and the second limiting plate (19).

6. The high-efficiency air separation device according to claim 5, characterized in that, It also includes a linear cylinder (21), a rack (22), a gear (23), and a cam (24). The gear (23) is rotatably connected inside the frame (3). The rack (22) is horizontally movable and meshes with the gear (23). The linear cylinder (21) is connected to the rack (22) and is used to control the movement of the rack (22). The cam (24) is coaxially arranged with the gear (23) and is used to push against the first limiting plate (18). The first limiting plate (18) and the second limiting plate (19) are both rotatably connected to the feed hopper (2). The first limiting plate (18) and the second limiting plate (19) are connected by a connecting rope (25).

7. The high-efficiency air separation device according to claim 1, characterized in that, A pair of drive rollers (13) are connected to the frame (1). The drive rollers (13) are rotated by a motor. The two drive rollers (13) are used to tension the two ends of the conveyor belt (9).

8. The high-efficiency air separation device according to claim 1, characterized in that, Both the feed hopper (2) and the discharge hopper (8) are cone-shaped.

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