Solid medicament granulating and drying machine

Abstract

The utility model discloses a solid medicament granulating dryer, which comprises a drying box, a heating device and a high-pressure pump, a supporting net is arranged in the middle of the drying box, an air outlet barrel is arranged at the bottom of the drying box and comprises an inner barrel and an outer barrel, an airflow gap is formed between the inner barrel and the outer barrel, and the air outlet barrel is arranged in the drying box. The airflow gap is communicated with the high-pressure pump, the bottom of the inner barrel is communicated with the upper portion of the drying box through an air pipe, an air inlet of the high-pressure air pump is connected with a filter, and a one-way valve is arranged at the top of the drying box. The utility model aims to provide a solid medicament granulating and drying machine which can reduce the workload of a filter.

Description

TECHNICAL FIELD

[0001] The utility model relates to solid medicament preparation technical field, in particular to a kind of solid medicament granulating drying machine. BACKGROUND

[0002] In the pharmaceutical industry, the granulation of solid medicaments is a crucial process step aimed at converting powdered drug materials into granules of specific shape and size, providing a basis for subsequent packaging or further processing into final dosage forms such as tablets, capsules, etc. Wet granulation is one of the widely used granulation methods. After completing the granulation, in order to ensure the stability and good flowability of the product, drying must be carried out to remove excess moisture. Unlike ordinary industrial drying equipment, the design of solid medicament drying devices requires higher cleanliness to prevent the introduction of any external contaminants. Therefore, the air entering the interior during the drying process needs to be filtered. However, the traditional drying machine requires a large amount of air circulation to maintain a dry environment, which puts a high demand on the filter. Not only does this increase the cost, but it also shortens the service life of the filter. Frequent replacement of the filter also increases the maintenance workload. SUMMARY

[0003] In view of the above prior art, the utility model provides a kind of solid medicament granulating drying machine, reduces the work burden of filter.

[0004] To achieve the above purpose, the technical scheme of the utility model embodiment is as follows:

[0005] A kind of solid medicament granulating drying machine, including drying box, heating device and high pressure pump, the middle part in the drying box is equipped with support net, the bottom of the drying box is equipped with air outlet cylinder, the air outlet cylinder includes inner cylinder and outer cylinder, airflow gap is formed between the inner cylinder and outer cylinder, the airflow gap is communicated with the high pressure pump, the bottom of the inner cylinder is communicated with the upper portion of the drying box by air pipe, the gas inlet of the high pressure pump is connected with filter, the top of the drying box is equipped with one-way valve.

[0006] Further, the lower portion of the support net is equipped with fan blade, the fan blade is connected with rotating shaft, the rotating shaft is communicated to the top of the drying box, and the rotating shaft is connected with motor.

[0007] Further, the fan blade includes upper fan blade and lower fan blade, the upper fan blade and lower fan blade all include a plurality of blades, and the blades of the upper fan blade and the blades of the lower fan blade are vertically staggered.

[0008] Further, the side wall of the drying box is equipped with opening, and the opening is equipped with cover plate.

[0009] Further, the middle part of the support net is equipped with through hole, the through hole is connected with shaft sleeve, and the rotating shaft passes through the shaft sleeve.

[0010] Further, the heating device is an electric heating wire, and the outer side wall of the inner cylinder and the inner side wall of the outer cylinder are provided with embedding grooves, and the electric heating wire is arranged in the embedding grooves.

[0011] Further, the bottom of the inner cylinder is conical.

[0012] The beneficial effects of the utility model lie in: air flow is heated in the air flow gap formed between the inner cylinder and the outer cylinder, the air flow gap is small, the air flow can fully contact the heating device, and the heating efficiency is greatly improved. Meanwhile, the specific surface area of the air flow is low, a small amount of air can quickly increase the temperature, and efficient heat transfer is realized. Since the high-pressure pump only needs to provide a small amount of air to maintain air flow circulation, the air flow entering the drying box is reduced, the working load of the filter is reduced, the service life of the filter is prolonged, and the maintenance cost and frequency are reduced. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a solid medicine granulator drying machine three-dimensional structure schematic view in the embodiment of the application;

[0014] Figure 2 It is a solid medicine granulator drying machine internal structure schematic view in the embodiment of the application;

[0015] Figure 3 It is a solid medicine granulator drying machine cross section structure schematic view in the embodiment of the application;

[0016] Figure 4 It is a solid medicine granulator drying machine three-dimensional structure schematic view in the embodiment of the application; Figure 3 It is the enlarged structure schematic view of A area in the embodiment of the application;

[0017] BRIEF DESCRIPTION OF DRAWINGS

[0018] 1, drying box; 2, heating device; 3, high-pressure pump; 4, support net; 5, air outlet cylinder; 6, inner cylinder; 7, outer cylinder; 8, air flow gap; 9, air pipe; 10, filter; 11, one-way valve; 12, fan blade; 13, rotating shaft; 14, motor; 15, upper fan blade; 16, lower fan blade; 18, opening; 19, cover plate; 20, through hole; 21, shaft sleeve; 22, electric heating wire; 23, embedding groove. DETAILED DESCRIPTION

[0019] The utility model technical scheme is further described in detail in combination with the drawings and specific embodiments. Unless otherwise defined, all technical and scientific terms used in this paper have the same meaning as understood by those skilled in the art belonging to the technical field of the utility model. The terms used in the specification of the utility model in this paper are only for the purpose of describing specific embodiments and are not intended to limit the utility model.

[0020] It is to be understood that where an element such as a layer, region or substrate is described as being "on" another element, it can be directly on the other element or intervening elements can also be present. Where an element such as a layer, region or substrate is described as being "connected" to another element, it can be directly connected to the other element or intervening elements can also be present. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items. Relative terms such as "horizontal," "vertical," "upper," "lower," "left," "right" and the like as can be used herein to describe one element's relationship to another element as the patent document is viewed in the orientation depicted in the drawings. Relative terms are used only to simplify descriptions, and thus, terms such as "horizontal," "vertical," "upper," "lower," "left," "right" and the like are not intended to limit the position of an element by absolute value, unless such a limited position is explicitly indicated.

[0021] Embodiment 1

[0022] Please refer to the accompanying drawings Figures 1-4 The application provides a solid medicine granulator dryer, which comprises a drying box 1, a heating device 2 and a high-pressure pump 3, a supporting net 4 is arranged in the middle of the drying box 1, an air outlet cylinder 5 is arranged at the bottom of the drying box 1, the air outlet cylinder 5 comprises an inner cylinder 6 and an outer cylinder 7, an airflow gap 8 is formed between the inner cylinder 6 and the outer cylinder 7, the airflow gap 8 is communicated with the high-pressure pump 3, the bottom of the inner cylinder 6 is communicated with the upper part of the drying box 1 through an air pipe 9, the air inlet of the high-pressure pump 3 is connected with a filter 10, and a one-way valve 11 is arranged at the top of the drying box 1. The solid medicine particles are placed on the supporting net 4, the air-permeable holes of the supporting net 4 can pass through the airflow, the diameter of the air-permeable holes of the supporting net 4 is smaller than the diameter of the solid medicine particles, so that the solid medicine particles cannot pass through the supporting net 4. The high-pressure pump 3 generates high-pressure gas when working, the high-pressure gas is introduced into the airflow gap 8 between the inner cylinder 6 and the outer cylinder 7, and the heating device 2 of the airflow gap 8 heats the airflow. Since the airflow gap 8 is small, the airflow can fully contact the heating device 2, thereby improving the heating efficiency of the heating device 2. The high-pressure gas is quickly discharged from the airflow gap 8, the high-pressure airflow continues to move along the inner wall of the outer cylinder 7 under the action of the wall effect, and moves upwards in the inner cylinder 6, the bottom of the inner cylinder 6 is communicated with the upper part of the drying box 1 through the air pipe 9, thereby forming an airflow circulation. The high-pressure air is mixed with the airflow of the inner cylinder 6 in the process of flowing, the mixed airflow moves upwards to heat and dry the solid particles. The one-way valve 11 is arranged at the top of the drying box 1, the moisture evaporated after being heated is discharged outward through the one-way valve 11, thereby promoting the drying of the solid particles. When the heating device 2 heats the airflow, the airflow is in the airflow gap 8, so the specific surface area of the airflow is low, thereby effectively improving the heating efficiency. A small amount of air can drive a large amount of airflow to move, the temperature of the gas can be quickly improved, the heating of the heating device 2 can also sterilize the gas. The filter 10 is used to filter the gas entering the drying box 1, thereby improving the cleanliness. Since the air flow is small, the service life of the filter 10 is longer.

[0023] Specifically, the lower part of the support net 4 is provided with a fan blade 12, the fan blade 12 is connected with a rotating shaft 13, the rotating shaft 13 is communicated to the top of the drying box 1, and the rotating shaft 13 is connected with a motor 14. The motor 14 drives the rotating shaft 13 to rotate when working, the rotating shaft 13 drives the fan blade 12 to rotate, the high-temperature gas and the low-temperature gas are fully mixed, and the temperature distribution of the gas is uniform. The fan blade 12 pushes the airflow to move upward when rotating, thereby promoting the circulation of the airflow.

[0024] Specifically, the fan blade 12 comprises an upper fan blade 1512 and a lower fan blade 16, the upper fan blade 1512 and the lower fan blade 16 each comprise a plurality of blades, and the blades of the upper fan blade 1512 and the lower fan blade 16 are staggered in the vertical direction. The rotation of the upper fan blade 1512 and the lower fan blade 16 promotes the mixing of the airflow in the drying box 1, thereby promoting the uniform distribution of the temperature in the drying box 1.

[0025] Specifically, the side wall of the drying box 1 is provided with an opening 18, and the opening 18 is provided with a cover plate 19. When the cover plate 19 is opened, the solid medicament particles can be put into the drying box 1 through the opening 18, and the solid medicament can also be taken out of the drying box 1. The opening 18 is sealed by the cover plate 19 during the drying process.

[0026] Embodiment 2

[0027] Please refer to the accompanying drawings Figures 1-4 The difference between the embodiment and the embodiment 1 is that the middle part of the support net 4 is provided with a through hole 20, the through hole 20 is connected with a shaft sleeve 21, and the rotating shaft 13 penetrates through the shaft sleeve 21. The shaft sleeve 21 can avoid the friction between the rotating shaft 13 and the solid medicament particles when rotating, and protect the solid medicament particles.

[0028] Specifically, the heating device 2 is an electric heating wire 22, the outer side wall of the inner cylinder 6 and the inner side wall of the outer cylinder 7 are provided with an embedded groove 23, and the electric heating wire 22 is arranged in the embedded groove 23. The electric heating wire 22 is used for heating the gas, and the electric heating wire 22 is embedded in the side wall of the inner cylinder 6 and the outer cylinder 7, so that the airflow flows smoothly.

[0029] Specifically, the bottom of the inner cylinder 6 is conical. The conical structure is conducive to driving the airflow to flow in the air pipe 9.

[0030] The above is only a specific implementation manner of the present application, but the protection scope of the present application is not limited to this, any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered in the protection scope of the present application. The protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A solid medicament granulating dryer characterized by comprising: Including drying box (1), heating device (2) and high pressure pump (3), the middle part of the drying box (1) is provided with support net (4), the bottom of the drying box (1) is provided with air outlet cylinder (5), the air outlet cylinder (5) includes inner cylinder (6) and outer cylinder (7), airflow gap (8) is formed between the inner cylinder (6) and the outer cylinder (7), the airflow gap (8) is communicated with the high pressure pump (3), the bottom of the inner cylinder (6) is communicated with the upper part of the drying box (1) through air pipe (9), the air inlet of the high pressure pump (3) is connected with filter (10), the top of the drying box (1) is provided with one-way valve (11).

2. The granulator-dryer for solid medicaments according to claim 1, characterized in that, The lower part of the support net (4) is provided with fan blade (12), the fan blade (12) is connected with rotating shaft (13), the rotating shaft (13) is communicated to the top of the drying box (1), and the rotating shaft (13) is connected with motor (14).

3. The granulator-dryer for solid medicaments according to claim 2, characterized in that, The fan blade (12) includes upper fan blade (15) and lower fan blade (16), the upper fan blade (15) and the lower fan blade (16) both include a plurality of blades, and the blades of the upper fan blade (15) and the lower fan blade (16) are vertically staggered.

4. The granulator-dryer for solid medicaments according to claim 1, characterized in that, The side wall of the drying box (1) is provided with opening (18), and the opening (18) is provided with cover plate (19).

5. The granulator-dryer for solid medicaments according to claim 2, characterized in that, The middle part of the support net (4) is provided with through hole (20), the through hole (20) is connected with shaft sleeve (21), and the rotating shaft (13) passes through the shaft sleeve (21).

6. The granulator-dryer for solid medicaments according to claim 1, characterized in that, The heating device (2) is electric heating wire (22), the outer side wall of the inner cylinder (6) and the inner side wall of the outer cylinder (7) are provided with embedding groove (23), and the electric heating wire (22) is arranged in the embedding groove (23).

7. The granulator-dryer for solid medicaments according to claim 1, characterized in that, The bottom of the inner cylinder (6) is conical.

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