A dust and impurity removing device for traditional Chinese medicine decoction piece production
By combining blowers and vacuum pumps with airflow dynamics principles and multi-stage sieving, the problem of difficult removal of dust and light impurities in the production of Chinese herbal medicine slices has been solved, achieving efficient dust removal and sieving, and improving product quality and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ANGUO YIKANG PHARM CO LTD
- Filing Date
- 2025-07-18
- Publication Date
- 2026-06-23
Smart Images

Figure CN224389326U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of mechanical engineering, and in particular to a dust removal and impurity removal device for the production of traditional Chinese medicine decoction pieces. Background Technology
[0002] The dust removal and impurity removal device for the production of Chinese herbal medicine slices is based on the core logic of sieving, air separation, and dust removal. It consists of five major modules: feeding and pretreatment, sieving and impurity removal, air-powered dust removal, dust removal, purification and collection, and discharge and control. During operation, the slices are evenly conveyed through the feeding hopper and sieved through a multi-stage vibrating screen. Simultaneously, the air-powered dust removal module blows up dust and light impurities and sucks them into the dust removal pipeline. After multi-stage filtration, the dust is collected in the dust collection box, and qualified slices are discharged through the discharge device. In terms of innovative design, it adopts a composite dust removal system, an adaptive adjustment system, an easy-to-clean structure, and energy-saving technologies. Compared with traditional devices, it can increase dust removal efficiency by more than 50%, achieve high impurity removal efficiency, effectively reduce medicinal material loss and manual maintenance, meet production standards, and is suitable for the large-scale production of various types of Chinese herbal medicine slices.
[0003] The existing main equipment for dust removal and impurity removal devices used in the production of traditional Chinese medicine decoction pieces mainly includes vibrating screens, drum screens, bag filters, cyclone dust collectors, wet scrubbers, magnetic separators, air separators, color sorters, pneumatic conveying systems, dust collection pipelines, fans, and control systems.
[0004] Currently, traditional dust removal and impurity removal devices lack air intake and filtration devices. As a result, the dust generated during the production process cannot be effectively collected through negative pressure adsorption and filtration systems, leading to excessive dust concentrations in the workshop. This not only endangers the health of operators and increases the risk of dust explosions, but also affects the operational accuracy of equipment and the hygienic quality of medicinal slices. In terms of impurity removal, the lack of air blowing devices prevents the separation of light impurities using airflow dynamics principles, causing these impurities to remain in the medicinal slices. At the same time, it is difficult to meet the regulatory requirements for impurity content and dust control in medicinal slices, resulting in substandard product quality. Utility Model Content
[0005] To overcome the above deficiencies, this utility model provides a dust removal and impurity removal device for the production of traditional Chinese medicine decoction pieces. It aims to improve the existing technology by reducing the excessive dust concentration in the workshop, reducing the risk of dust explosion, and adding an air blowing device to separate light impurities using the principle of airflow dynamics, thereby meeting the requirements of the regulations on the impurity content and dust control of decoction pieces.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] A dust removal and impurity removal device for the production of traditional Chinese medicine decoction pieces includes a vibrating box and a sieve cylinder shell. A support frame is fixedly connected to one side of the vibrating box, a base is fixedly connected to the bottom of the support frame, a power unit is fixedly connected to the top of the base, an eccentric wheel is fixedly connected to the output end of the power unit, a reciprocating rod is rotatably connected to the eccentric wheel, and a filter screen is rotatably connected to the end of the reciprocating rod away from the eccentric wheel. A feed hopper is fixedly connected to the top of the vibrating box, a receiving drawer is slidably connected inside the vibrating box, a discharge guide groove is fixedly connected to the end of the vibrating box away from the receiving drawer, a blower is fixedly connected to the top of the vibrating box, an air pipe is fixedly connected to the output end of the blower, and the end of the air pipe away from the blower is fixedly connected to the outside of the sieve cylinder shell.
[0008] As a further description of the above technical solution:
[0009] A second power unit is fixedly connected to the top of the screen cylinder shell. A fixed base is rotatably connected to the output end of the second power unit. Two rollers are rotatably connected to the outside of the screen cylinder shell. A transmission ring is rotatably connected between the two rollers. A drum screen is fixedly connected inside the transmission ring. Two rollers are rotatably connected to the end of the drum screen away from the transmission ring. An air pipe is fixedly connected to the bottom of the screen cylinder shell. A filter box is fixedly connected to the bottom of the air pipe. A pull-out filter element is slidably connected inside the filter box. An air pipe is fixedly connected to the end of the filter box away from the pull-out filter element. A vacuum pump is fixedly connected to one end of the air pipe. The vacuum pump is fixedly connected to the top of the vibration box.
[0010] As a further description of the above technical solution:
[0011] The mounting base is fixedly connected to the outside of the screen cylinder shell.
[0012] As a further description of the above technical solution:
[0013] The filter screen is slidably connected to the inside of the vibrating box.
[0014] As a further description of the above technical solution:
[0015] Two connecting rods are fixedly connected to the bottom of the sieve cylinder shell.
[0016] As a further description of the above technical solution:
[0017] The transmission ring abuts against the end of the screen cylinder shell away from the vibrating box.
[0018] As a further description of the above technical solution:
[0019] The reciprocating rod is slidably connected to one side of the vibration box.
[0020] As a further description of the above technical solution:
[0021] The drum screen is rotatably connected inside the screen cylinder shell.
[0022] This utility model has the following beneficial effects:
[0023] 1. In this utility model, the blower structure drives the air pipe to work. When the equipment is started, the blower is started at the same time. The high-speed air jet action can clean and assist in the material conveying and screening and grading, reduce cross-contamination, improve the cleanliness of the medicinal slices, and meet the needs of production efficiency and quality control.
[0024] 2. In this utility model, with the cooperation of the vacuum pump, air pipe and filter box, dust will be generated when the drum screen rotates, which causes the vacuum pump to drive the filter box to perform air suction and filtration, so as to solve the problem of reducing the dust concentration in the workshop from exceeding the standard. Attached Figure Description
[0025] Figure 1 This is a three-dimensional schematic diagram of a dust removal and impurity removal device for the production of traditional Chinese medicine decoction pieces proposed in this utility model;
[0026] Figure 2 This is a schematic diagram of the structure of the vibrating box of a dust removal and impurity removal device for the production of traditional Chinese medicine decoction pieces proposed in this utility model;
[0027] Figure 3 This is a schematic diagram of the structure of a rotary screen for a dust removal and impurity removal device for the production of traditional Chinese medicine decoction pieces proposed in this utility model;
[0028] Figure 4 This is a schematic diagram of the structure of a filter screen for a dust removal and impurity removal device for the production of traditional Chinese medicine decoction pieces proposed in this utility model.
[0029] Figure 5 This is a schematic diagram of the outer shell of the sieve cylinder of a dust removal and impurity removal device for the production of traditional Chinese medicine decoction pieces proposed in this utility model.
[0030] Legend:
[0031] 1. Roller 1; 2. Vibration box; 3. Reciprocating rod; 4. Eccentric wheel; 5. Power unit 1; 6. Support frame; 7. Feed hopper; 8. Vacuum pump; 9. Blower; 10. Air pipe 1; 11. Screen cylinder shell; 12. Discharge guide chute; 13. Air pipe 2; 14. Filter box; 15. Pull-out filter element; 16. Air pipe 3; 17. Transmission ring; 18. Power unit 2; 19. Roller 2; 20. Drum screen; 21. Fixed base; 22. Filter screen; 23. Receiving drawer; 24. Base; 25. Connecting rod. Detailed Implementation
[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0033] Reference Figures 1-5 This utility model provides an embodiment of a dust removal and impurity removal device for the production of traditional Chinese medicine decoction pieces, including a vibrating box 2 and a sieve cylinder shell 11. The vibrating box 2 is made of stainless steel. A support frame 6 is fixedly connected to one side of the vibrating box 2. A base 24 is fixedly connected to the bottom of the support frame 6. A power device 5 is fixedly connected to the top of the base 24. An eccentric wheel 4 is fixedly connected to the output end of the power device 5. A reciprocating rod 3 is rotatably connected to the eccentric wheel 4. A filter screen 22 is rotatably connected to the end of the reciprocating rod 3 away from the eccentric wheel 4. The output shaft of the power device 5 is fixedly connected to the eccentric wheel 4. The rotational power is converted into the linear reciprocating motion of the reciprocating rod 3 through the circular motion of the eccentric wheel 4, thereby driving the filter screen 22 to vibrate and realizing the power transmission for material screening. A feed hopper 7 is fixedly connected to the top of the vibrating box 2. A receiving drawer 23 is slidably connected inside the vibrating box 2 and is slidably connected to the bottom of the vibrating box 2 for easy periodic cleaning of impurities after screening. A discharge guide chute 12 is fixedly connected to the end of the vibrating box 2 away from the receiving drawer 23. A blower 9 is fixedly connected to the top of the vibrating box 2. An air pipe 10 is fixedly connected to the output end of the blower 9. The end of the air pipe 10 away from the blower 9 is fixedly connected to the outside of the screen cylinder shell 11. A filter screen 22 is slidably connected to the inside of the vibrating box 2. A transmission ring 17 abuts against the end of the screen cylinder shell 11 away from the vibrating box 2.
[0034] Reference Figures 1-5A power unit 28 is fixedly connected to the top of the screen cylinder shell 11. A fixed base 21 is rotatably connected to the output end of the power unit 28. Two rollers 29 are rotatably connected to the outside of the screen cylinder shell 11, and a transmission ring 17 is rotatably connected between the two rollers 29. A drum screen 20 is fixedly connected inside the transmission ring 17. Two rollers 11 are rotatably connected to the end of the drum screen 20 away from the transmission ring 17. The power unit 28 transmits rotational power to the transmission ring 17 through the fixed base 21. The transmission ring 17 forms a rotatable connection with the screen cylinder shell 11 via the rollers 29, driving the drum screen 20 to rotate. After the power unit 28 is started, its output end drives the fixed base 21 to rotate, thereby driving the transmission ring 17 to rotate. The transmission ring 17 is connected to the screen cylinder shell 11 through the rollers 219, driving the internal drum screen 20 to rotate synchronously. Chinese herbal medicine slices enter the drum screen 20 from the vibrating box 2 via the discharge guide 12. During rotation, the slices tumble continuously, and fine impurities fall through the screen holes, while qualified slices spiral forward along the inner wall of the drum and are discharged. A second air pipe 13 is fixedly connected to the bottom of the outer shell 11 of the screen cylinder, and a filter box 14 is fixedly connected to the bottom of the second air pipe 13. A pull-out filter element 15 is slidably connected inside the filter box 14. A third air pipe 16 is fixedly connected to the end of the filter box 14 away from the pull-out filter element 15, and a vacuum pump 8 is fixedly connected to one end of the third air pipe 16. The vacuum pump 8 is fixedly connected to the top of the vibrating box 2. When the vacuum pump 8 is activated, a negative pressure is formed inside the outer shell 11 of the screen cylinder through the third air pipe 16. Impurities are carried by the airflow through the second air pipe 13 into the filter box 14, where the pull-out filter element 15 intercepts the impurities. Clean air is discharged through the third air pipe 16, preventing secondary pollution. A fixing seat 21 is fixedly connected to the outside of the outer shell 11 of the screen cylinder. Two connecting rods 25 are fixedly connected to the bottom of the screen cylinder shell 11, and the drum screen 20 is rotatably connected inside the screen cylinder shell 11.
[0035] Working Principle: Raw materials of Chinese herbal medicine are fed into the vibrating chamber 2 through the feed hopper 7, entering the initial processing stage of the device. The power unit 5 is started, driving the eccentric wheel 4 to rotate. The reciprocating motion generated by the eccentric structure is transmitted to the filter screen 22 through the reciprocating rod 3, causing the filter screen 22 to vibrate at high frequency within the vibrating chamber 2. During vibration, impurities fall into the receiving drawer 23, while the herbal medicine particles remain on the screen surface and move towards the discharge guide chute 12 for discharge, completing the initial screening and impurity removal. The blower 9 then operates, blowing airflow into the outer shell 11 of the screen cylinder through the air pipe 10, carrying away light dust such as medicinal powder and lint from the Chinese herbal medicine, achieving initial gas-solid separation and reducing dust pollution in subsequent stages.
[0036] After initial screening, the medicinal slices enter the drum screen 20 via the discharge guide chute 12 for secondary processing. Power unit 2 18 starts, driving the transmission ring 17 via roller 2 19, causing the drum screen 20 to rotate. As the drum screen 20 rotates, the medicinal slices tumble and slide inside, continuously sieving out fine impurities smaller than the screen openings, completing the fine screening. Vacuum pump 8 starts, creating a negative pressure environment inside the screen cylinder shell 11 through air pipe 3 16, filter box 14, and air pipe 2 13. Dust generated during screening by the drum screen 20 is adsorbed by the negative pressure and enters the filter box 14 via air pipe 2 13. The dust is intercepted and filtered by the pull-out filter element 15 and retained in the filter element. Clean gas is discharged by vacuum pump 8, achieving deep dust removal. Qualified medicinal slices remaining on the screen surface move towards the end of the drum screen 20 and are discharged. The base 24 and the support frame 6 provide installation support for the motor and the vibration box 2, ensuring that the components operate in coordination to form a continuous production process and achieve the functional goals of mechanical sieving to remove large impurities from Chinese herbal medicine pieces and dual purification of dust removal airflow under negative pressure.
[0037] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A dust removal and impurity removal device for the production of traditional Chinese medicine decoction pieces, comprising a vibrating box (2) and a sieve cylinder shell (11), characterized in that: A support frame (6) is fixedly connected to one side of the vibrating box (2). A base (24) is fixedly connected to the bottom of the support frame (6). A power device (5) is fixedly connected to the top of the base (24). An eccentric wheel (4) is fixedly connected to the output end of the power device (5). A reciprocating rod (3) is rotatably connected to the eccentric wheel (4). A filter screen (22) is rotatably connected to the end of the reciprocating rod (3) away from the eccentric wheel (4). A feed hopper (7) is fixedly connected to the top of the vibrating box (2). A receiving drawer (23) is slidably connected inside the vibrating box (2). A discharge guide groove (12) is fixedly connected to the end of the vibrating box (2) away from the receiving drawer (23). A blower (9) is fixedly connected to the top of the vibrating box (2). An air pipe (10) is fixedly connected to the output end of the blower (9). The end of the air pipe (10) away from the blower (9) is fixedly connected to the outside of the screen cylinder shell (11).
2. The dust removal and impurity removal device for the production of traditional Chinese medicine decoction pieces according to claim 1, characterized in that: A power unit (18) is fixedly connected to the top of the screen cylinder shell (11). A fixed base (21) is rotatably connected to the output end of the power unit (18). Two rollers (19) are rotatably connected to the outside of the screen cylinder shell (11). A transmission ring (17) is rotatably connected between the two rollers (19). A drum screen (20) is fixedly connected inside the transmission ring (17). Two rollers are rotatably connected to the end of the drum screen (20) away from the transmission ring (17). Roller 1 (1), air pipe 2 (13) is fixedly connected to the bottom of the screen cylinder shell (11), filter box (14) is fixedly connected to the bottom of the air pipe 2 (13), a pull-out filter element (15) is slidably connected inside the filter box (14), air pipe 3 (16) is fixedly connected to the end of the filter box (14) away from the pull-out filter element (15), a vacuum pump (8) is fixedly connected to one end of the air pipe 3 (16), and the vacuum pump (8) is fixedly connected to the top of the vibration box (2).
3. The dust removal and impurity removal device for the production of traditional Chinese medicine decoction pieces according to claim 2, characterized in that: The fixing seat (21) is fixedly connected to the outside of the screen cylinder shell (11).
4. The dust removal and impurity removal device for the production of traditional Chinese medicine decoction pieces according to claim 1, characterized in that: The filter screen (22) is slidably connected to the inside of the vibrating box (2).
5. The dust removal and impurity removal device for the production of traditional Chinese medicine decoction pieces according to claim 1, characterized in that: Two connecting rods (25) are fixedly connected to the bottom of the screen cylinder shell (11).
6. A dust removal and impurity removal device for the production of traditional Chinese medicine decoction pieces according to claim 2, characterized in that: The transmission ring (17) abuts against the end of the screen cylinder shell (11) away from the vibrating box (2).
7. The dust removal and impurity removal device for the production of traditional Chinese medicine decoction pieces according to claim 1, characterized in that: The reciprocating rod (3) is slidably connected to one side of the vibration box (2).
8. A dust removal and impurity removal device for the production of traditional Chinese medicine decoction pieces according to claim 2, characterized in that: The drum screen (20) is rotatably connected inside the screen cylinder shell (11).