Medicinal material low-dust pulverizer

Abstract

The utility model provides a low-dust medicinal material pulverizer, which comprises a feeding bin, a pulverizing cavity and a material containing barrel, the feeding bin is communicated with the pulverizing cavity through a first pipeline, the bottom of the pulverizing cavity is provided with a discharge port, and the pulverizing cavity is communicated with the material containing barrel through the discharge port. A cutter head is arranged in the crushing cavity, a motor is arranged outside the crushing cavity, and the output end of the motor extends into the crushing cavity to be connected with the cutter head; the crushing cavity is communicated with a balancer, a filter element is arranged in the balancer, the balancer is divided into a first cavity and a second cavity by the filter element, the first cavity is communicated with the crushing cavity, the second cavity is provided with an air inlet and an air outlet, and an air pressure sensor is arranged in the second cavity. The whole medicinal material low-dust pulverizer is a closed space, so that dissipation of dust in the pulverizing cavity is effectively reduced; a balancer is further arranged to communicate with the crushing cavity and used for balancing air pressure in the crushing cavity, and the situation that the medicine powder escapes from gaps due to the pressure difference between the interior and the exterior of the crushing cavity can be avoided.

Description

Technical Field

[0001] This utility model relates to the technical field of medicinal material processing equipment, specifically to a low-dust pulverizer for medicinal materials. Background Technology

[0002] Medicinal materials refer to raw materials suitable for pharmaceutical production. Before being processed into medicines, medicinal materials undergo various processing steps, such as drying, cutting, crushing, grinding, and sieving. Crushing medicinal materials is a crucial step in drug preparation, increasing their surface area and facilitating the extraction of active ingredients or further processing. This article summarizes several common methods for crushing medicinal materials, including mechanical crushing, grinding, and water immersion. Mechanical crushing is currently one of the most commonly used methods. This method utilizes mechanical force to break medicinal materials into fine powder. Commonly used mechanical crushing equipment includes pulverizers, grinders, and ball mills. These devices typically use high-speed rotating blades or stones to crush the medicinal materials. The advantages of mechanical crushing are its simple operation, high efficiency, and ability to quickly break medicinal materials into the required particle size. However, some problems also exist. For example, during the crushing process, pressure imbalance within the crushing chamber can cause some medicinal powder to escape into the air, which can have adverse effects on human health, the workshop environment, and production equipment. Dust entering workshop equipment through gaps and other means can reduce the precision of these devices. If it adheres to transmission and moving parts, it can shorten the machine's lifespan. Long-term inhalation of dust can cause respiratory diseases such as rhinitis, bronchitis, and pharyngitis. Furthermore, excessive medicinal herb dust leads to waste and increases production costs. To address this, a low-dust medicinal herb pulverizer is proposed to reduce dust emission during the pulverization process, improve the cleanliness of the production workshop, and facilitate the collection of medicinal herb powder. Summary of the Invention

[0003] The purpose of this utility model is to provide a low-dust pulverizer for medicinal materials to solve the above-mentioned technical problems.

[0004] This utility model provides a low-dust pulverizer for medicinal materials, including a feeding hopper, a pulverizing chamber, and a holding bucket. The feeding hopper is hinged to a cover at its top. The feeding hopper and the pulverizing chamber are connected via a first pipe. The bottom of the pulverizing chamber has a discharge port, which is connected to the holding bucket. A cutter disc is installed inside the pulverizing chamber, and a motor is installed outside the pulverizing chamber. The motor's output end extends into the pulverizing chamber and connects to the cutter disc. The pulverizing chamber is connected to a balancer via a second pipe. The balancer contains a filter element that divides the balancer into a first cavity and a second cavity. The first cavity is connected to the pulverizing chamber, and the second cavity has an air inlet and an air outlet. A pressure sensor is installed inside the second cavity.

[0005] Preferably, the material container is detachably connected to the discharge port.

[0006] Preferably, the inner wall of the container opening is provided with threads, the container is connected to the outer wall of the outlet by threads, and the inner wall of the container opening is also provided with a sealing ring, which is located at the lower end of the threads and abuts against the outer wall of the outlet.

[0007] Preferably, the crushing chamber is equipped with a screen, which is located at the top of the discharge port.

[0008] Preferably, the balancer is detachably connected to the second pipe.

[0009] Preferably, the balancer is connected to the second pipe via a flange.

[0010] Preferably, the cutter head includes a rotating shaft and n groups of cutter blocks evenly distributed radially along the rotating shaft, each group of cutter blocks including m cutter blocks, the cutter blocks being circumferentially spaced along the outer periphery of the rotating shaft, where n and m are both integers greater than 1; the rotating shaft is connected to the output end of the motor.

[0011] Preferably, the outer wall of the crushing chamber is provided with a support frame.

[0012] Preferably, the first pipe is provided with a discharge valve, which is electrically connected to a controller, and the controller is used to control the opening and closing of the discharge valve.

[0013] The beneficial effects of this utility model are as follows: This utility model provides a low-dust pulverizer for medicinal materials. The top of the feeding hopper is equipped with a cover, and the discharge port is connected to the holding bucket to form a sealed space, effectively reducing the escape of dust from the pulverizing chamber. Furthermore, a balancer is connected to the pulverizing chamber to balance the air pressure inside the pulverizing chamber, allowing the pulverized medicinal materials to fall freely into the holding bucket under gravity. The balancer is equipped with a filter element to prevent the powder from diffusing through the balancer. The air inlet of the balancer is connected to the air supply pipe, and the air outlet is connected to the air outlet pipe. The air supply or exhaust is intermittently adjusted according to changes in the air pressure sensor to maintain stable pressure inside the pulverizing chamber. This prevents the powder from escaping through gaps due to pressure differences inside and outside the pulverizing chamber, and also balances the pressure between the pulverizing chamber and the holding bucket, allowing the powder to fall freely into the holding bucket for convenient collection. The entire herbal pulverizer has a simple structure. The motor is located outside the pulverizing chamber, which can improve heat dissipation and prevent overheating. The addition of a balancer can balance the air pressure inside the pulverizing chamber, greatly reducing the escape of herbal powder to the outside, achieving clean production, and ensuring the safety and health of production personnel. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of a low-dust pulverizer for medicinal materials according to the present invention.

[0015] Figure 2 This is a schematic diagram of the structure of the balancer of this utility model.

[0016] In the diagram: 1-feeding bin, 2-grinding chamber, 3-discharge port, 4-storage bucket, 5-balancer, 6-first pipe, 7-rotating shaft, 8-blade, 9-screen, 10-sealing ring, 501-first cavity, 502-second cavity, 503-air outlet, 504-air inlet, 505-pressure sensor. Detailed Implementation

[0017] To enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to the accompanying drawings. The described embodiments are merely some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] Example 1

[0019] Reference Figure 1 and Figure 2 This embodiment provides a low-dust pulverizer for medicinal materials, including a feeding bin 1, a pulverizing chamber 2, and a holding tank 4. The feeding bin 1 is hinged to a cover at its top. The feeding bin 1 and the pulverizing chamber 2 are connected via a first pipe 6. The bottom of the pulverizing chamber 2 has a discharge port 3, and the pulverizing chamber 2 and the holding tank 4 are connected via the discharge port 3. A cutter disc is installed inside the pulverizing chamber 2, and a motor is installed outside the pulverizing chamber 2. The output end of the motor extends into the pulverizing chamber 2 and connects to the cutter disc. The pulverizing chamber 2 is connected to a balancer 5 via a second pipe. The balancer 5 has a filter element inside, which divides the balancer 5 into a first cavity 501 and a second cavity 502. The first cavity 501 is connected to the pulverizing chamber 2. The second cavity 502 has an air inlet 504 and an air outlet 503, and a pressure sensor 505 is installed inside the second cavity 502. The air inlet 504 is connected to the air inlet pipe, and the air outlet 503 is connected to the air outlet pipe. The air inlet pipe is equipped with an air inlet valve, and the air outlet pipe is equipped with an air outlet valve. Both the air inlet valve and the air outlet valve are electrically connected to a PLC controller. The air pressure sensor 505 is also electrically connected to the PLC controller. The air pressure sensor 505 receives changes in air pressure, generates an electrical signal, and transmits it to the PLC controller. The PLC controller generates control information based on the electrical signal and transmits it to the air inlet valve or the air outlet valve. Upon receiving the control information, the air inlet valve or the air outlet valve opens or closes.

[0020] The holding bucket 4 is detachably connected to the discharge port 3. The inner wall of the holding bucket 4 is threaded, and the outer wall of the holding bucket 4 is connected to the discharge port 3 via these threads. A sealing ring 10 is located at the bottom of the inner wall of the holding bucket 4, positioned at the lower end of the thread. The sealing ring 10 abuts against the bottom of the outer wall of the discharge port 3. That is, after the holding bucket 4 and the discharge port 3 are tightened together via the threads, the sealing ring 10 precisely abuts against the bottom of the outer wall of the discharge port 3, ensuring a tight connection between the holding bucket 4 and the discharge port 3. It should be noted that the holding bucket 4 can also be connected to the discharge port 3 via a snap-fit ​​connection.

[0021] The crushing chamber 2 is equipped with a screen 9, which is located at the top of the discharge port 3. The screen 9 can perform a preliminary sieving effect on the powder. Only when the powder reaches a certain fineness can it fall from the screen 9 into the holding bucket 4.

[0022] The balancer 5 is detachably connected to the second pipe. The balancer 5 and the second pipe are connected via a flange. Since the balancer 5 is connected to the crushing chamber, some powder will reach the first cavity 501 of the balancer 5. Although the powder is blocked in the first cavity 501 by the filter element, excessive powder accumulation over time will reduce the filter element's filtration efficiency and increase the deviation between the pressure sensor 505's reading and the pressure reading inside the crushing chamber. Therefore, a new balancer 5 needs to be replaced. The detachable connection between the balancer 5 and the second pipe facilitates subsequent replacement of the balancer 5. The replaced balancer 5 can be reused after cleaning away accumulated dust.

[0023] The blade disc includes a rotating shaft 7 and n sets of blades 8 evenly distributed radially along the rotating shaft 7. Each set of blades 8 includes m blades 8, which are spaced apart circumferentially along the outer periphery of the rotating shaft 7. n and m are both integers greater than 1. The rotating shaft 7 is connected to the output end of the motor. n can be 2, 3, or 4, and m can be 3, 4, or 6. By arranging multiple sets of blades 8 radially along the rotating shaft 7, the medicinal materials can be pulverized more effectively, avoiding dead zones in the pulverization process.

[0024] The outer wall of the pulverizing chamber 2 is provided with a support frame to support the entire low-dust pulverizer for medicinal materials.

[0025] The first pipe 6 is equipped with a discharge valve, which is electrically connected to a controller. The controller is used to control the opening and closing of the discharge valve to achieve orderly and intermittent discharge, and to avoid material accumulation and incomplete crushing.

[0026] The working process of the low-dust pulverizer for medicinal materials is as follows:

[0027] 1) Add the medicinal materials into the feeding hopper 1 and close the cover. Connect the holding bucket 4 and the discharge port 3 as one unit. Start the motor to make the internal cutter disc rotate. Then control the opening and closing of the feeding valve so that the medicinal materials enter the crushing chamber in a quantitative and intermittent manner.

[0028] 2) Activate the balancer 5 to adjust the air intake and exhaust according to the air pressure change in the grinding chamber 2, so as to maintain the air pressure balance in the grinding chamber 2;

[0029] 3) After the medicinal materials are completely damaged, turn off the motor and balancer 5, and remove the material container 4.

[0030] This utility model provides a low-dust pulverizer for medicinal materials. By setting a balancer to balance the air pressure in the pulverizing chamber, the pulverized medicinal materials can fall freely into the holding bucket under the action of gravity. The balancer is equipped with a filter element to prevent the powder in the pulverizing chamber from diffusing through the balancer. The air inlet of the balancer is connected to the air supply pipe, and the air outlet is connected to the air outlet pipe. The air supply or exhaust is intermittently adjusted according to the changes in the air pressure sensor to maintain a stable pressure in the pulverizing chamber and prevent the powder from escaping from the gaps due to the pressure difference between the inside and outside of the pulverizing chamber.

[0031] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model and do not limit the utility model to the specific implementations described. Obviously, other modifications and variations can be made based on the content of this specification. The embodiments selected and specifically described in this specification are intended to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. They are not intended to limit the utility model, and any simple modifications to this utility model fall within the protection scope of this utility model.

Claims

1. A low-dust pulverizer for medicinal materials, comprising a feeding hopper, a pulverizing chamber, and a holding hopper, characterized in that: The top of the feeding hopper is hinged with a cover. The feeding hopper and the crushing chamber are connected through a first pipe. The bottom of the crushing chamber is provided with a discharge port, and the crushing chamber and the holding bucket are connected through the discharge port. A cutter disc is provided inside the crushing chamber, and a motor is provided outside the crushing chamber. The output end of the motor extends into the crushing chamber and is connected to the cutter disc. The crushing chamber is connected to a balancer through a second pipe. A filter element is provided inside the balancer, and the filter element divides the balancer into a first cavity and a second cavity. The first cavity is connected to the crushing chamber. The second cavity is provided with an air inlet and an air outlet. A pressure sensor is provided inside the second cavity. The air inlet is connected to an air inlet pipe, and the air outlet is connected to an air outlet pipe. The air inlet pipe is provided with an air inlet valve, and the air outlet pipe is provided with an air outlet valve.

2. The low-dust pulverizer for medicinal materials according to claim 1, characterized in that, The material container is detachably connected to the discharge port.

3. The low-dust pulverizer for medicinal materials according to claim 2, characterized in that, The inner wall of the container opening is threaded, and the container is connected to the outer wall of the outlet by the thread. The inner wall of the container opening is also provided with a sealing ring, which is located at the lower end of the thread and abuts against the outer wall of the outlet.

4. The low-dust pulverizer for medicinal materials according to claim 1, characterized in that, The crushing chamber is equipped with a screen, which is located at the top of the discharge port.

5. The low-dust pulverizer for medicinal materials according to claim 1, characterized in that, The balancer is detachably connected to the second pipe.

6. The low-dust pulverizer for medicinal materials according to claim 5, characterized in that, The balancer is connected to the second pipe via a flange.

7. The low-dust pulverizer for medicinal materials according to claim 1, characterized in that, The cutter head includes a rotating shaft and n groups of cutter blocks evenly distributed radially along the rotating shaft. Each group of cutter blocks includes m cutter blocks, which are spaced apart circumferentially along the outer periphery of the rotating shaft. n and m are both integers greater than 1. The rotating shaft is connected to the output end of the motor.

8. The low-dust pulverizer for medicinal materials according to claim 1, characterized in that, The outer wall of the crushing chamber is provided with a support frame.

9. The low-dust pulverizer for medicinal materials according to claim 1, characterized in that, The first pipeline is equipped with a discharge valve, which is electrically connected to a controller. The controller is used to control the opening and closing of the discharge valve.

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