A humidity-controlled pharmaceutical raw material grinding device

Abstract

This utility model relates to the field of grinding technology, and more particularly to a pharmaceutical raw material grinding device with controllable humidity. The technical solution includes a grinding cylinder, a fan, and a cooling box. A heat exchange duct is fixedly connected to the end of the fan's output pipe, and the heat exchange duct runs from top to bottom through the cooling box. A refrigeration unit is fixedly installed on the outer surface of the cooling box. A drain valve is connected to the end of the heat exchange duct. A mixing pipe is fixedly connected to the outer surface of the heat exchange duct below the cooling box. An atomizing nozzle is fixedly installed on the outer surface of the mixing pipe, penetrating the outer wall of the mixing pipe. A water pipe is fixedly connected to the outer surface of the atomizing nozzle. The ends of the mixing pipe and the fan's output pipe are respectively fixedly connected to both sides of the outer surface of the grinding cylinder. This utility model can control the grinding humidity during the grinding process of pharmaceutical raw materials, thereby improving grinding efficiency and uniformity, while avoiding dust dispersion and reducing raw material loss.

Description

Technical Field

[0001] This utility model relates to the field of grinding technology, specifically to a pharmaceutical raw material grinding device with controllable humidity. Background Technology

[0002] Pharmaceutical raw material grinding is one of the core processes in the pretreatment stage of pharmaceutical production. Its core objective is to break down and refine solid raw materials (including Chinese medicinal materials, chemical raw materials, excipients, etc.) to a particle size range that meets the requirements of subsequent production through physical external force. This process can increase the specific surface area of ​​the raw materials, creating favorable conditions for subsequent extraction, dissolution, mixing, granulation and other processes (such as decoction extraction of Chinese medicine and compression tableting of chemical powders), thereby improving the dissolution efficiency or mixing uniformity of the active ingredients.

[0003] In the current process of grinding pharmaceutical raw materials, if the humidity is too high, it is easy to cause the raw materials to clump and grind unevenly, and even cause component degradation. If the humidity is too low, dust may be generated, posing safety hazards and raw material loss. Therefore, we propose a pharmaceutical raw material grinding equipment with controllable humidity. Utility Model Content

[0004] The purpose of this invention is to provide a pharmaceutical raw material grinding device with controllable humidity. It has the advantages of controlling the grinding humidity during the grinding process of pharmaceutical raw materials to improve grinding efficiency and uniformity, while avoiding dust and reducing raw material loss. It solves the problem that when the humidity is too high during the grinding process of pharmaceutical raw materials, it is easy to cause raw material agglomeration and uneven grinding, and even cause component degradation. When the humidity is too low, dust may be generated, posing safety hazards and raw material loss.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a humidity-controllable pharmaceutical raw material grinding device, comprising a grinding cylinder, a fan, and a cooling box. A heat exchange duct is fixedly connected to the end of the fan's output pipe, and the heat exchange duct runs from top to bottom through the cooling box. A refrigeration unit is fixedly installed on the outer surface of the cooling box. A drain valve is connected to the end of the heat exchange duct. A mixing pipe is fixedly connected to the outer surface of the heat exchange duct at a position below the cooling box. An atomizing nozzle is fixedly installed on the outer surface of the mixing pipe, and the atomizing nozzle penetrates the outer wall of the mixing pipe. A water pipe is fixedly connected to the outer surface of the atomizing nozzle. The ends of the mixing pipe and the fan's output pipe are respectively fixedly connected to both sides of the outer surface of the grinding cylinder. A humidity sensor is fixedly installed inside the grinding cylinder.

[0006] Preferably, a feed valve is fixedly installed on the upper surface of the grinding cylinder near the edge, and a feed hopper is fixedly connected to the top of the feed valve. A grinding ring is fixedly installed inside the grinding cylinder near the lower surface. A motor frame is provided above the grinding cylinder, and a grinding motor is fixedly installed on the upper surface of the motor frame. A grinding cone is fixedly connected to the end of the output shaft of the grinding motor through a rotating shaft, and the grinding cone is located inside the grinding ring. A discharge valve is fixedly connected to the lower surface of the grinding cylinder.

[0007] Preferably, the outer diameter of the grinding cone and the inner diameter of the grinding ring both decrease from top to bottom, and the width of the grinding gap between the outer surface of the grinding cone and the inner wall of the grinding ring decreases from top to bottom.

[0008] Preferably, the grinding cylinder has columns symmetrically fixedly connected to both sides of its upper surface, and the columns penetrate the motor frame. A top plate is fixedly installed at the top of the column, and an electric push rod is fixedly installed on the upper surface of the top plate. The end of the electric push rod is fixedly connected to the upper surface of the motor frame through a connecting frame.

[0009] Preferably, an annular groove is provided on the inner wall of the grinding cylinder above the grinding ring, and a filter ring is fixedly connected to the outer surface of the rotating shaft by a connecting rod, with the filter ring located inside the annular groove.

[0010] Preferably, wind baffles are fixedly installed on both the front and rear sides of the connection between the mixing pipe and the grinding cylinder inside the annular groove.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This utility model, by setting up a grinding cylinder, a fan, a heat exchange duct, a cooling box, a refrigeration unit, a mixing pipe, a drain valve, an atomizing nozzle, and a water pipe, achieves the effect of controlling the grinding humidity during the grinding process of pharmaceutical raw materials, thereby improving grinding efficiency and uniformity, while avoiding dust and reducing raw material loss. A humidity sensor monitors the humidity inside the grinding cylinder. When the humidity value is higher than the suitable grinding humidity range for pharmaceutical raw materials, the fan operates to extract air from the grinding cylinder and introduce it into the heat exchange duct. Simultaneously, the refrigeration unit operates to cool the interior of the cooling box. As air from the heat exchange duct passes through the cooling box, the water vapor in the air condenses upon contact with the cold air, thus removing moisture from the air. The dried air then flows back into the grinding cylinder through the mixing pipe to reduce grinding humidity. Conversely, when the humidity value is lower than the suitable grinding humidity range for pharmaceutical raw materials, pure water is sprayed into the mixing pipe through the atomizing nozzle, mixes with the air flowing inside the mixing pipe, and then flows back into the grinding cylinder to increase grinding humidity.

[0012] 2. This utility model achieves the effect of controlling the particle size of the ground raw material according to the requirements by setting up a column, a top plate and an electric push rod. The electric push rod drives the motor frame to rise and fall, which in turn drives the grinding cone to rise and fall, thereby controlling the size of the grinding gap between the grinding cone and the grinding ring, and thus controlling the size of the raw material particles falling through the grinding gap.

[0013] 3. This utility model, by setting an annular groove and a filter ring, achieves the effect of preventing raw material dust from entering the fan and pipeline, and also effectively preventing the filter ring from clogging. When the fan draws air out of the grinding cylinder, the air is filtered through the filter ring to remove raw material dust, thus preventing raw material dust from entering the fan and pipeline. At the same time, the rotating shaft drives the filter ring to rotate through the connecting rod, and when the air in the mixing pipe flows back into the grinding cylinder, it will back-blow the filter ring to blow away the blockage in the filter hole. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a partial three-dimensional structural diagram of the motor frame of this utility model; Figure 3 This is a schematic diagram of the main sectional structure of this utility model; Figure 4 This is a partial top-section structural diagram of the grinding cylinder of this utility model.

[0015] Reference numerals: 1. Grinding cylinder; 2. Fan; 3. Heat exchange air duct; 4. Feed valve; 5. Feed hopper; 6. Motor frame; 7. Cooling box; 8. Refrigeration unit; 9. Water pipe; 10. Atomizing nozzle; 11. Mixing pipe; 12. Drain valve; 13. Grinding motor; 14. Column; 15. Top plate; 16. Electric push rod; 17. Connecting frame; 18. Discharge valve; 19. Grinding ring; 20. Grinding cone; 21. Annular groove; 22. Filter ring; 23. Connecting rod; 24. Humidity sensor; 25. Rotating shaft; 26. Baffle plate. Detailed Implementation

[0016] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0017] Example 1

[0018] like Figures 1-3As shown, this utility model proposes a humidity-controlled pharmaceutical raw material grinding device, including a grinding cylinder 1, a fan 2, and a cooling box 7. A feed valve 4 is fixedly installed on the upper surface of the grinding cylinder 1 near its edge, and a feed hopper 5 is fixedly connected to the top of the feed valve 4. A grinding ring 19 is fixedly installed inside the grinding cylinder 1 near its lower surface. A motor frame 6 is provided above the grinding cylinder 1, and a grinding motor 13 is fixedly installed on the upper surface of the motor frame 6. A grinding cone 20 is fixedly connected to the end of the output shaft of the grinding motor 13 via a rotating shaft 25, and the grinding cone 20 is located inside the grinding ring 19. The upper surface of the grinding cone 20 is a conical slope to facilitate better sliding of pharmaceutical raw materials into the grinding gap between the inner wall of the grinding ring 19 and the outer surface of the grinding cone 20. A discharge valve is fixedly connected to the lower surface of the grinding cylinder 1. 18. A heat exchange air duct 3 is fixedly connected to the end of the output pipe of the fan 2, and the heat exchange air duct 3 runs through the cooling box 7 from top to bottom. A refrigerator 8 is fixedly installed on the outer surface of the cooling box 7. A drain valve 12 is connected to the end of the heat exchange air duct 3. A mixing pipe 11 is fixedly connected to the outer surface of the heat exchange air duct 3 at a position below the cooling box 7. An atomizing nozzle 10 is fixedly installed on the outer surface of the mixing pipe 11, and the atomizing nozzle 10 penetrates the outer wall of the mixing pipe 11. A water pipe 9 is fixedly connected to the outer surface of the atomizing nozzle 10. The end of the water pipe 9 is fixedly connected to the output end of the water pump. Pure water is transported to the inside of the atomizing nozzle 10 through the water pump and the water pipe 9. The end of the mixing pipe 11 and the end of the output pipe of the fan 2 are fixedly connected to the two sides of the outer surface of the grinding cylinder 1, respectively. A humidity sensor 24 is fixedly installed inside the grinding cylinder 1.

[0019] In use, pharmaceutical raw materials are fed into the grinding cylinder 1 through the feed hopper 5 and feed valve 4. The raw materials fall into the grinding gap between the inner wall of the grinding ring 19 and the outer surface of the grinding cone 20. The output shaft of the grinding motor 13 drives the grinding cone 20 to rotate through the rotating shaft 25, thus grinding the pharmaceutical raw materials. After grinding, the raw materials are discharged through the discharge valve 18. During the grinding process, the humidity inside the grinding cylinder 1 is monitored by the humidity sensor 24. When the humidity value is higher than the suitable grinding humidity range for the pharmaceutical raw materials, the fan 2 operates to ventilate the inside of the grinding cylinder 1. Air is extracted and enters the heat exchange duct 3. At the same time, the refrigerator 8 works and cools the inside of the cooling box 7. When the air inside the heat exchange duct 3 passes through the inside of the cooling box 7, the water vapor in the air condenses upon contact with the cold air, thereby removing the moisture from the air. The dried air flows back into the grinding cylinder 1 through the mixing pipe 11 to reduce the grinding humidity. When the humidity value is lower than the suitable grinding humidity range for pharmaceutical raw materials, pure water is sprayed into the mixing pipe 11 through the atomizing nozzle 10 and mixed with the air flowing inside the mixing pipe 11 before flowing back into the grinding cylinder 1 to increase the grinding humidity.

[0020] Example 2

[0021] like Figures 1-3As shown, the present invention proposes a humidity-controlled pharmaceutical raw material grinding device. Compared with Embodiment 1, this embodiment further includes a grinding cone 20 with an outer diameter and a grinding ring 19 with an inner diameter that decrease from top to bottom. The grinding gap width between the outer surface of the grinding cone 20 and the inner wall of the grinding ring 19 decreases from top to bottom. Columns 14 are symmetrically fixedly connected to both sides of the upper surface of the grinding cylinder 1, and the columns 14 penetrate the motor frame 6. A top plate 15 is fixedly installed at the top of the column 14. An electric push rod 16 is fixedly installed on the upper surface of the top plate 15. The end of the electric push rod 16 is fixedly connected to the upper surface of the motor frame 6 through a connecting frame 17.

[0022] In this embodiment, the electric push rod 16 drives the motor frame 6 to rise and fall, which in turn drives the grinding cone 20 to rise and fall, thereby controlling the size of the grinding gap between the grinding cone 20 and the grinding ring 19, and thus controlling the size of the raw material particles falling through the grinding gap.

[0023] Example 3

[0024] like Figures 1-4 As shown, the present invention proposes a humidity-controlled pharmaceutical raw material grinding device. Compared with Embodiment 1, this embodiment further includes an annular groove 21 located on the inner wall of the grinding cylinder 1 above the grinding ring 19. A filter ring 22 is fixedly connected to the outer surface of the rotating shaft 25 via a connecting rod 23, and the filter ring 22 is located inside the annular groove 21. Baffle plates 26 are fixedly installed on both the front and rear sides of the connection between the mixing tube 11 and the grinding cylinder 1 inside the annular groove 21. The two baffle plates 26 block the air flowing back from the mixing tube 11 and blowing into the grinding cylinder 1, so that the backflowing air gathers and blows back towards the filter ring 22, which can better blow away the blockage in the filter holes.

[0025] In this embodiment, when the blower 2 draws out the air from inside the grinding cylinder 1, the air is filtered by the filter ring 22 to remove raw material dust, thus preventing the raw material dust from entering the blower 2 and the inside of the pipe. At the same time, the rotating shaft 25 drives the filter ring 22 to rotate through the connecting rod 23, and when the air in the mixing pipe 11 flows back into the grinding cylinder 1, it will back-blown the filter ring 22 to blow away the blockage in the filter holes.

[0026] The above specific embodiments are merely several preferred embodiments of this utility model. Based on the technical solution of this utility model and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. A humidity-controlled pharmaceutical raw material grinding device, comprising a grinding cylinder (1), a fan (2), and a cooling box (7), characterized in that: The output pipe of the fan (2) is fixedly connected to a heat exchange air pipe (3), and the heat exchange air pipe (3) runs through the cooling box (7) from top to bottom. A refrigerator (8) is fixedly installed on the outer surface of the cooling box (7). A drain valve (12) is connected to the end of the heat exchange air pipe (3). A mixing pipe (11) is fixedly connected to the outer surface of the heat exchange air pipe (3) at a position below the cooling box (7). An atomizing nozzle (10) is fixedly installed on the outer surface of the mixing pipe (11), and the atomizing nozzle (10) runs through the outer wall of the mixing pipe (11). A water pipe (9) is fixedly connected to the outer surface of the atomizing nozzle (10). The end of the mixing pipe (11) and the end of the output pipe of the fan (2) are fixedly connected to the two sides of the outer surface of the grinding cylinder (1). A humidity sensor (24) is fixedly installed inside the grinding cylinder (1).

2. The pharmaceutical raw material grinding equipment with controllable humidity according to claim 1, characterized in that: A feed valve (4) is fixedly installed on the upper surface of the grinding cylinder (1) near the edge, and a feed hopper (5) is fixedly connected to the top of the feed valve (4). A grinding ring (19) is fixedly installed inside the grinding cylinder (1) near the lower surface. A motor frame (6) is provided above the grinding cylinder (1). A grinding motor (13) is fixedly installed on the upper surface of the motor frame (6). A grinding cone (20) is fixedly connected to the end of the output shaft of the grinding motor (13) through a rotating shaft (25). The grinding cone (20) is located inside the grinding ring (19). A discharge valve (18) is fixedly connected to the lower surface of the grinding cylinder (1).

3. The pharmaceutical raw material grinding equipment with controllable humidity according to claim 2, characterized in that: The outer diameter of the grinding cone (20) and the inner diameter of the grinding ring (19) decrease from top to bottom, and the width of the grinding gap between the outer surface of the grinding cone (20) and the inner wall of the grinding ring (19) decreases from top to bottom.

4. The pharmaceutical raw material grinding equipment with controllable humidity according to claim 3, characterized in that: The grinding cylinder (1) has symmetrical columns (14) fixedly connected on both sides of its upper surface, and the columns (14) penetrate the motor frame (6). A top plate (15) is fixedly installed at the top of the columns (14), and an electric push rod (16) is fixedly installed on the upper surface of the top plate (15). The end of the electric push rod (16) is fixedly connected to the upper surface of the motor frame (6) through a connecting frame (17).

5. The pharmaceutical raw material grinding equipment with controllable humidity according to claim 2, characterized in that: The inner wall of the grinding cylinder (1) is provided with an annular groove (21) above the grinding ring (19). The outer surface of the rotating shaft (25) is fixedly connected to a filter ring (22) by a connecting rod (23), and the filter ring (22) is located inside the annular groove (21).

6. The pharmaceutical raw material grinding equipment with controllable humidity according to claim 5, characterized in that: Wind baffles (26) are fixedly installed on both the front and rear sides of the connection between the mixing pipe (11) and the grinding cylinder (1) inside the annular groove (21).

Images