Pharmaceutical raw material crushing and drying device

Abstract

The utility model discloses a crushing and drying device for pharmaceutical raw materials, which relates to the field of medicine manufacturing and comprises a box body, one end of the top of the box body is provided with a feed hopper, the box body is communicated with the feed hopper, one end face of the box body is provided with a screening port, two crushing rollers which are symmetrically distributed in parallel are arranged in the feed hopper, and the screening port is communicated with the screening port. And the two ends of the two crushing rollers are rotationally connected with the feeding hopper through bearings. Pharmaceutical raw materials are crushed through the two crushing rollers, the crushed pharmaceutical raw materials are screened through the screening assembly, then the screened pharmaceutical raw materials are guided into the drying assembly through the material guide plate to be dried and stirred, the overall operation is simple, the crushing and drying time of the pharmaceutical raw materials is shortened, and the production efficiency is improved. And the working efficiency is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of pharmaceutical manufacturing, specifically a pulverizing and drying device for pharmaceutical raw materials. Background Technology

[0002] Pharmaceutical raw material pulverization is a crucial step in pharmaceutical formulation production, referring to the process of breaking solid drug particles or crystals into finer particles using mechanical force. Pulverization not only affects the physical properties of drugs (such as solubility and specific surface area) but also directly relates to bioavailability, formulation stability, and clinical efficacy. Currently, pharmaceutical raw materials are pulverized in pulverizing equipment before being transferred to a dryer for drying. This processing method is cumbersome, time-consuming, and consequently inefficient. Utility Model Content

[0003] The purpose of this utility model is to provide a pulverizing and drying device for pharmaceutical raw materials in order to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a pulverizing and drying device for pharmaceutical raw materials, comprising a box body, a feeding hopper provided at one end of the top of the box body, the box body being connected to the feeding hopper, a screening port provided at one end face of the box body, two parallel and symmetrically distributed crushing rollers provided inside the feeding hopper, both ends of the two crushing rollers being rotatably connected to the feeding hopper via bearings, a meshing gear set provided between the same end of the shafts of the two crushing rollers, and the other end of the shaft of one of the crushing rollers being driven by a first motor;

[0005] The box is equipped with a screening component. One end of the screening component is rotatably connected to the inner wall of the box via a shaft and a bearing. The rotating end of the screening component is located directly below the feed hopper. The free end of the screening component rests on the screening port. The height of the rotating end of the screening component is higher than the height of the free end of the screening component. This is used to screen the particle size of the material.

[0006] A toggle mechanism is provided below the free end of the screening component to continuously toggle the free end of the screening component so that the screening component vibrates.

[0007] A drying component is installed below the screening component to receive the small particles after screening and to dry them.

[0008] As a further embodiment of this utility model: the screening component includes a sieve plate, a screen is provided at the rotating end and the middle of the sieve plate, the free end of the sieve plate has a narrow opening structure to match the width of the screening opening, and baffle strips are welded on both sides of the sieve plate.

[0009] As a further embodiment of this utility model: the actuating mechanism includes a rotating shaft, the rotating shaft is located below the free end of the screening component, the two ends of the rotating shaft are rotatably connected to the inner wall of the box through bearings, a cam is fixedly sleeved on the outer wall of the rotating shaft, and the rotating shaft is connected to the shaft of one of the crushing rollers through a transmission component.

[0010] As a further improvement of this utility model: when the free end of the screening component rests on the screening port, the non-protruding part of the cam contacts the bottom end of the screening component.

[0011] As a further improvement of this utility model: a guide plate is provided in the middle of the box body. The guide plate is located between the screening component and the drying component and is used to receive the material screened by the screening component and guide and transport the material into the drying component.

[0012] As a further embodiment of this utility model: the drying assembly includes a drying cylinder, the upper end of the drying cylinder near the screening port is provided with a feed inlet, the lower end of the drying cylinder away from the screening port is provided with a discharge outlet, and an annular hot cavity is provided between the inner and outer walls of the drying cylinder, with an electric heating tube spirally wound inside the hot cavity.

[0013] As a further embodiment of this utility model: the drying assembly further includes a stirring shaft, the two ends of which are rotatably connected to the two ends of the interior of the drying cylinder through bearings, and multiple stirring blades are equidistantly arranged on both sides of the outer wall of the stirring shaft, and one end of the stirring shaft is driven by a second motor.

[0014] As a further embodiment of this utility model: the end of the drying cylinder near the discharge port is supported by a lifting assembly, and the end of the drying cylinder near the inlet is rotatably connected to the box body via a rotating shaft.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] This invention uses two crushing rollers to pulverize pharmaceutical raw materials, a screening component to screen the pulverized raw materials, and then a guide plate to guide the screened raw materials into a drying component for drying and stirring. The overall operation is simple, reduces the pulverization and drying time of pharmaceutical raw materials, and greatly improves work efficiency. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the structure from another perspective of the present invention;

[0019] Figure 3 This is a schematic cross-sectional view of the present invention.

[0020] Figure 4 This is a schematic diagram of the structure of the screening component of this utility model.

[0021] In the diagram: 1. Box body; 2. Feed hopper; 3. Crushing roller; 31. Gear set; 32. First motor; 4. Screening assembly; 401. Screen plate; 402. Screen mesh; 403. Baffle bar; 5. Rotating shaft; 51. Cam; 52. Transmission assembly; 6. Screening inlet; 7. Guide plate; 8. Drying assembly; 801. Drying cylinder; 802. Feed inlet; 803. Discharge outlet; 804. Hot chamber; 805. Heating tube; 806. Stirring shaft; 807. Stirring blade; 808. Second motor; 9. Lifting assembly. Detailed Implementation

[0022] 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.

[0023] Please see Figures 1-4 In this embodiment of the present invention, a pulverizing and drying device for pharmaceutical raw materials includes a housing 1, a feeding hopper 2 is provided at one end of the top of the housing 1, the housing 1 is connected to the feeding hopper 2, a screening port 6 is provided at one end of the housing 1, two parallel and symmetrically distributed crushing rollers 3 are provided inside the feeding hopper 2, both ends of the two crushing rollers 3 are rotatably connected to the feeding hopper 2 through bearings, a meshing gear set 31 is provided between the same end of the shaft of the two crushing rollers 3, and the other end of the shaft of one of the crushing rollers 3 is driven by a first motor 32;

[0024] The interior of the housing 1 is equipped with a screening component 4. One end of the screening component 4 is rotatably connected to the inner wall of the housing 1 via a shaft and bearing. The rotating end of the screening component 4 is located directly below the feed hopper 2. The free end of the screening component 4 rests on the screening port 6. The height of the rotating end of the screening component 4 is higher than the height of the free end of the screening component 4, which is used to screen the particle size of the material. The screening component 4 includes a screen plate 401. The rotating end and the middle of the screen plate 401 are provided with a screen mesh 402. The free end of the screen plate 401 has a narrow opening structure to match the width of the screening port 6. Baffle strips 403 are welded on both sides of the screen plate 401.

[0025] A toggle mechanism is provided below the free end of the screening component 4 to continuously agitate the free end of the screening component 4, causing the screening component 4 to vibrate. The toggle mechanism includes a rotating shaft 5, which is located below the free end of the screening component 4. Both ends of the rotating shaft 5 are rotatably connected to the inner wall of the housing 1 through bearings. A cam 51 is fixedly sleeved on the outer wall of the rotating shaft 5. The rotating shaft 5 is connected to the shaft of one of the crushing rollers 3 through a transmission component 52. When the free end of the screening component 4 is placed on the screening inlet 6, the non-protruding part of the cam 51 contacts the bottom end of the screening component 4. A guide plate 7 is provided in the middle of the housing 1. The guide plate 7 is located between the screening component 4 and the drying component 8, and is used to receive the material screened by the screening component 4 and guide the material to the drying component 8.

[0026] A drying assembly 8 is installed below the screening assembly 4 to receive small particles after screening by the screening assembly 4 and to dry them. The drying assembly 8 includes a drying cylinder 801, with an inlet 802 at the upper end of the drying cylinder 801 near the screening inlet 6 and an outlet 803 at the lower end of the drying cylinder 801 away from the screening inlet 6. An annular hot cavity 804 is provided between the inner and outer walls of the drying cylinder 801, and an electric heating tube 805 is spirally wound inside the hot cavity 804. The drying assembly 8 also includes a stirring shaft 806, with both ends of the stirring shaft 806 rotatably connected to the inner ends of the drying cylinder 801 via bearings. Multiple stirring blades 807 are equidistantly arranged on both sides of the outer wall of the stirring shaft 806, and one end of the stirring shaft 806 is driven by a second motor 808. The end of the drying cylinder 801 near the outlet 803 is supported by a lifting assembly 9, and the end of the drying cylinder 801 near the inlet 802 is rotatably connected to the housing 1 via a rotating shaft.

[0027] In this embodiment: the pharmaceutical raw materials are crushed by two crushing rollers 3, and the crushed pharmaceutical raw materials are screened by the screening component 4. Then, the screened pharmaceutical raw materials are guided by the guide plate 7 to the drying component 8 for drying and stirring. The overall operation is simple, the crushing and drying time of pharmaceutical raw materials is reduced, and the work efficiency is greatly improved.

[0028] Specifically, pharmaceutical raw materials are first fed into the feed hopper 2. The first motor 32 drives one crushing roller 3 to rotate, and the other crushing roller 3 is driven to rotate synchronously in the opposite direction under the action of the gear set 31, thereby crushing the pharmaceutical raw materials. The crushed raw materials will fall onto the rotating end of the screening component 4, and then slide from the rotating end of the screening component 4 to the free end of the screening component 4. During the sliding process of the raw materials, small particles will fall onto the guide plate 7, while large particles will slide out from the screening port 6.

[0029] To ensure smooth screening of raw materials by the screening component 4, this solution uses one of the crushing rollers 3 to drive the rotating shaft 5 to rotate via the transmission component 52. The rotating shaft 5 will drive the cam 51 to rotate continuously, thereby creating a vibration effect to improve the screening efficiency of the screening component 4.

[0030] After large particles of raw material flow out of the screening port 6, they can be collected by the material frame and then poured back into the feed hopper 2 for crushing. The raw material that falls on the guide plate 7 will slide from one end of the guide plate 7 to the other end and fall into the inner cavity of the drying cylinder 801. The interior of the drying cylinder 801 is heated by the electric heating tube 805, so that the inner cavity of the drying cylinder 801 forms a hot space. At the same time, the stirring shaft 806 can be driven to rotate by the second motor 808. The stirring shaft 806 drives the stirring blade 807 to stir and stir the raw material, so that the raw material is heated evenly and the drying efficiency is improved.

[0031] After the raw materials are dried, the lifting assembly 9 drives the end of the drying cylinder 801 near the discharge port 803 to descend. At this time, the material in the drying cylinder 801 will flow out of the discharge port 803, completing the collection of the raw materials. After the collection is completed, the lifting assembly 9 pushes one end of the drying cylinder 801 to rise, so that both ends of the drying cylinder 801 return to the same position height. The lifting assembly 9 is a cylinder and a hydraulic rod.

[0032] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A pulverizing and drying device for pharmaceutical raw materials, comprising a housing (1), wherein a feed hopper (2) is provided at one end of the top of the housing (1), the housing (1) is connected to the feed hopper (2), and a screening port (6) is provided at one end face of the housing (1), characterized in that, The feed hopper (2) is equipped with two parallel and symmetrically distributed crushing rollers (3). Both ends of the two crushing rollers (3) are rotatably connected to the feed hopper (2) through bearings. A gear set (31) is provided between the same end of the shaft of the two crushing rollers (3), and the other end of the shaft of one of the crushing rollers (3) is driven by a first motor (32). The box (1) is equipped with a screening component (4). One end of the screening component (4) is rotatably connected to the inner wall of the box (1) through a shaft and bearing. The rotating end of the screening component (4) is located directly below the feed hopper (2). The free end of the screening component (4) rests on the screening port (6). The height of the rotating end of the screening component (4) is higher than the height of the free end of the screening component (4), which is used to screen the particle size of the material. The free end of the screening component (4) is provided with a toggle mechanism, which is used to continuously toggle the free end of the screening component (4) so ​​that the screening component (4) vibrates. A drying component (8) is installed below the screening component (4) to receive the small particles after screening by the screening component (4) and to dry the small particles.

2. The pulverizing and drying apparatus for pharmaceutical raw materials according to claim 1, characterized in that, The screening component (4) includes a sieve plate (401), and a screen (402) is provided at the rotating end and the middle of the sieve plate (401). The free end of the sieve plate (401) has a narrow opening structure to match the width of the screening opening (6). Baffle strips (403) are welded on both sides of the sieve plate (401).

3. The pulverizing and drying apparatus for pharmaceutical raw materials according to claim 2, characterized in that, The actuating mechanism includes a rotating shaft (5), which is located below the free end of the screening component (4). Both ends of the rotating shaft (5) are rotatably connected to the inner wall of the box (1) through bearings. A cam (51) is fixedly sleeved on the outer wall of the rotating shaft (5). The rotating shaft (5) is connected to the shaft of one of the crushing rollers (3) through a transmission component (52).

4. The pulverizing and drying apparatus for pharmaceutical raw materials according to claim 3, characterized in that, When the free end of the screening component (4) rests on the screening port (6), the non-protruding part of the cam (51) contacts the bottom end of the screening component (4).

5. The pulverizing and drying apparatus for pharmaceutical raw materials according to claim 4, characterized in that, A guide plate (7) is provided in the middle of the box (1). The guide plate (7) is located between the screening component (4) and the drying component (8) and is used to receive the material screened by the screening component (4) and guide the material to the drying component (8).

6. The pulverizing and drying apparatus for pharmaceutical raw materials according to claim 5, characterized in that, The drying assembly (8) includes a drying cylinder (801), with an inlet (802) at the upper end of the drying cylinder (801) near the screening port (6) and an outlet (803) at the lower end of the drying cylinder (801) away from the screening port (6). An annular hot cavity (804) is provided between the inner and outer walls of the drying cylinder (801), and an electric heating tube (805) is spirally wound inside the hot cavity (804).

7. The pulverizing and drying apparatus for pharmaceutical raw materials according to claim 6, characterized in that, The drying assembly (8) also includes a stirring shaft (806), the two ends of which are rotatably connected to the two ends of the interior of the drying cylinder (801) via bearings. Multiple stirring blades (807) are arranged equidistantly on both sides of the outer wall of the stirring shaft (806), and one end of the stirring shaft (806) is driven by a second motor (808).

8. The pulverizing and drying apparatus for pharmaceutical raw materials according to claim 7, characterized in that, The drying cylinder (801) is supported by a lifting assembly (9) at one end near the discharge port (803), and the drying cylinder (801) is rotatably connected to the box body (1) at one end near the feed port (802) via a rotating shaft.

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