Capsule filling powder drying apparatus

Abstract

The utility model relates to a capsule filling powder drying device relates to powder drying device technical field, including the drying system and separation system of intercommunication, separation system includes cyclone separator, its feed pipe is linked with drying system, is equipped with the air stopper on the discharge pipe, is equipped with negative pressure fan on the air outlet pipe, drying system includes powder storage cylinder and the drying pipe of vertical setting and lower end inserts the inside of powder storage cylinder, the upper end of drying pipe is linked with the feed pipe of cyclone separator, drying system still includes hot air machine, and it is communicated with the lower part of drying pipe through the communicating pipe, and the wind force is less than the wind force of negative pressure fan, so that the lower end of drying pipe can be negative pressure state, and then the medicine powder is inhaled into the drying pipe, and in the drying pipe, hot air and medicine powder mix fully, and the moisture contained in medicine powder is taken out, and then through cyclone separator realizes the separation of medicine powder and airflow, and drying work continues with the inhaled work of drying pipe, and the drying efficiency of medicine powder is improved significantly.

Description

Technical Field

[0001] This utility model relates to the technical field of powder drying equipment, specifically a drying device for capsule filling powder. Background Technology

[0002] In the production process of capsules, especially in the preparation of powdered capsules, it is usually necessary to dry the pre-added medicinal powder in advance. For example, the patent application with publication number CN202321798008.8 in the patent database discloses a medicinal powder drying device, which achieves the drying of medicinal powder by using a sieve frame in conjunction with the stirring action of a stirring paddle and the operation of a drying structure. However, on the one hand, the above-mentioned drying device has a complex structure, and the setting of the sieve frame will inevitably affect the drying efficiency of the medicinal powder. On the other hand, the mixing effect of the medicinal powder and hot air is poor, which further reduces the drying efficiency of the medicinal powder. Utility Model Content

[0003] To address the technical problems existing in the background art, this utility model provides a capsule filling powder drying device.

[0004] The technical solution of this utility model is as follows:

[0005] A capsule filling powder drying device includes a drying system and a separation system connected to each other. The drying system can complete the drying of the medicine powder, and the separation system can separate the dried medicine powder from the water-containing airflow, thereby realizing the drying of capsule filling powder.

[0006] As the core technical concept of this utility model, the separation system includes a cyclone separator, whose inlet pipe is connected to the drying system, an airlock is installed in the outlet pipe, and a negative pressure fan is installed in the outlet pipe. The drying system includes a powder storage cylinder and a vertically arranged drying pipe with its lower end inserted into the storage cylinder. The upper end of the drying pipe is connected to the inlet pipe of the cyclone separator. The drying system also includes a hot air fan, which is connected to the lower part of the drying pipe through a connecting pipe, and its airflow is less than that of the negative pressure fan. Based on the above structure, since the airflow of the hot air fan is less than that of the negative pressure fan... The airflow creates a negative pressure at the lower end of the drying tube, drawing the powder into it. Inside the tube, the hot airflow mixes thoroughly with the powder, removing moisture. The powder is then separated from the airflow by a cyclone separator. The drying process continues as the powder is drawn into the tube, significantly improving drying efficiency. Furthermore, by adjusting the airflow of the negative pressure fan and the hot air fan, the residence time of the powder within the drying tube and the concentration ratio of the powder to the hot airflow can be controlled, further ensuring the drying effect.

[0007] As described above, in a preferred embodiment of the capsule filling powder drying device, the middle section of the drying tube is spiral-shaped to further extend the residence time of the powder in the drying tube and thus ensure that the drying process of the powder can be fully carried out.

[0008] As a further preferred embodiment, to further ensure the adequacy of the powder drying process, the spiral angle of the middle spiral section of the drying tube is not greater than 40°, and the number of spiral turns is not less than 3 turns.

[0009] As described above, in order to prevent the airflow of the hot air blower from affecting the material suction operation of the drying tube, a baffle plate is provided inside the connection position between the drying tube and the connecting tube. Specifically, the connection structure of the baffle plate is that it is vertically installed inside the drying tube, and its two sides are connected to the inner wall of the drying tube. There is a gap between the upper part and the inner wall of the drying tube, and the lower part is bent towards the inner wall of the side where the drying tube connects to the connecting tube and is connected to the inner wall of the drying tube, so that the hot airflow can flow upward under the action of the baffle plate.

[0010] In a preferred embodiment, to prevent the baffle from affecting the hot airflow into the drying tube, the cross-section of the baffle is an arc-shaped structure with the opening facing the connecting tube.

[0011] In the capsule-filled powder drying device described above, to further prevent the hot air blower from affecting the material suction operation of the drying tube and thus prevent hot air leakage at the lower end of the drying tube, the connection point between the connecting pipe and the drying tube is located outside the powder storage cylinder.

[0012] In the capsule filling powder drying device described above, in order to ensure the material suction effect of the drying tube under the action of the negative pressure fan, the lower end of the drying tube extends to the bottom of the powder storage cylinder, and the gap between the drying tube and the bottom of the powder storage cylinder is 4-7cm.

[0013] As a preferred embodiment, to further ensure the material suction effect of the drying tube, the bottom of the powder storage cylinder has an inverted frustum or inverted pyramidal shape.

[0014] The beneficial effects of this utility model are as follows: This utility model is a capsule filling powder drying device. The setting of the hot air fan's air force being less than that of the negative pressure fan allows the lower end of the drying tube to be in a negative pressure state, thereby drawing the medicine powder into the drying tube. At the same time, inside the drying tube, the hot airflow and medicine powder are fully mixed, carrying away the moisture contained in the medicine powder. Then, the medicine powder and airflow are separated by a cyclone separator. The drying process continues as the drying tube draws in the medicine powder, significantly improving the drying efficiency of the medicine powder. In addition, by adjusting the air force of the negative pressure fan and the hot air fan, the residence time of the medicine powder in the drying tube and the concentration ratio of the medicine powder relative to the hot airflow can be adjusted, further ensuring the drying effect of the medicine powder. Attached Figure Description

[0015] The advantages and solutions of this application will become clear to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this invention.

[0016] In the attached diagram:

[0017] Figure 1 This is a schematic diagram of the drying device in the embodiment;

[0018] Figure 2 This is a schematic diagram of the drying system in the embodiment;

[0019] Figure 3 This is a schematic diagram illustrating the arrangement of the wind deflectors in the embodiment.

[0020] Figure 4 This is a schematic diagram of the cross-sectional structure of the baffle plate inside the drying tube in the embodiment;

[0021] Figure 5 This is a schematic diagram of the separation system in the embodiment;

[0022] The components represented by the various reference numerals in the diagram are:

[0023] 1. Drying system; 11. Powder storage cylinder; 12. Drying pipe; 13. Hot air blower; 14. Connecting pipe; 15. Baffle plate; 2. Separation system; 21. Support; 22. Cyclone separator; 221. Separation cylinder; 222. Feed pipe; 223. Air outlet pipe; 224. Discharge pipe; 23. Airlock; 24. Negative pressure blower. Detailed Implementation

[0024] Exemplary embodiments of this disclosure will now be described in more detail with reference to the accompanying drawings.

[0025] Example

[0026] This embodiment provides a capsule filling powder drying device, see [link to documentation]. Figure 1 The device includes a connected drying system 1 and a separation system 2. The drying system 1 can complete the drying of the medicine powder, and the separation system 2 can separate the dried medicine powder from the water-containing airflow, thereby realizing the drying of capsule filling powder. The structure of the drying device (the above-mentioned capsule filling powder drying device) will be described in more detail below with reference to the attached drawings.

[0027] In this embodiment, combined with Figure 5The separation system 2 includes a support 21 and a cyclone separator 22 mounted on it. The cyclone separator 22 includes a vertically arranged separation cylinder 221. The lower part of the separation cylinder 221 is shaped like an inverted frustum and has a discharge pipe 224 at its lower end. The upper part of the separation cylinder 221 is also vertically arranged with an air outlet pipe 223 that connects to the inside of the separation cylinder 221. The lower end of the air outlet pipe 223 extends into the separation cylinder 221 and is equipped with a filter screen that can prevent powder from entering the air outlet pipe 223. The upper part of the separation cylinder 221 is horizontally arranged... There is a feed pipe 222 whose feeding direction is tangent to the side wall of the separator 221, and the feed pipe 222 is connected to the drying system 1. The discharge pipe 224 is equipped with an airlock 23, and the air outlet pipe 223 is equipped with a negative pressure fan 24. The negative pressure fan 24 can draw the powder from the drying system 1 into the separator 221. After separation by the cyclone separator 22, the dried powder falls to the lower end of the separator 221 and is discharged through the airlock 23. The airflow containing water vapor is discharged from the negative pressure fan 24 through the air outlet pipe 223.

[0028] In this embodiment, combined with Figure 2 As the core technical concept of this utility model, the drying system 1 includes a powder storage cylinder 11 and a drying pipe 12 that is vertically arranged and inserted into the air storage cylinder at its lower end. The upper end of the drying pipe 12 is connected to the feed pipe 222 of the cyclone separator 22. The drying system 1 also includes a hot air blower 13, which is connected to the lower part of the drying pipe 12 through a connecting pipe 14, and the air force is less than that of the negative pressure blower 24.

[0029] Based on the above structure, since the air force of the hot air blower 13 is less than that of the negative pressure blower 24, the lower end of the drying tube 12 is under negative pressure, which draws the medicine powder into the drying tube 12. At the same time, the hot airflow and medicine powder are fully mixed in the drying tube 12, and the moisture contained in the medicine powder is carried out. Then, the medicine powder and airflow are separated by the cyclone separator 22. The drying process continues as the drying tube 12 draws in the medicine powder, which significantly improves the drying efficiency of the medicine powder. At the same time, by adjusting the air force of the negative pressure blower 24 and the hot air blower 13, the residence time of the medicine powder in the drying tube 12 and the concentration ratio of the medicine powder to the hot airflow can be adjusted, which further ensures the drying effect of the medicine powder.

[0030] As a preferred embodiment of this invention, in order to further extend the residence time of the powder in the drying tube 12 and thus ensure that the drying of the powder can be carried out sufficiently, the middle section of the drying tube 12 is spiral-shaped.

[0031] As a further preferred embodiment, to further ensure the adequacy of the powder drying process, the spiral angle of the middle spiral section of the drying tube 12 is not greater than 40°, and the number of spiral turns is not less than 3 turns.

[0032] Preferably, in order to prevent the airflow of the hot air blower 13 from affecting the material suction operation of the drying tube 12, and thus prevent hot air leakage at the lower end of the drying tube 12, the connection point between the connecting tube 14 and the drying tube 12 is located outside the powder storage cylinder 11.

[0033] In this embodiment, combined with Figure 3 and Figure 4 To further prevent the airflow of the hot air blower 13 from affecting the material suction operation of the drying pipe 12, a baffle plate 15 is provided inside the connection position between the drying pipe 12 and the connecting pipe 14.

[0034] Specifically, regarding the connection structure of the baffle plate 15, it is vertically disposed inside the drying tube 12, and its two sides are connected to the inner wall of the drying tube 12. There is a gap between the upper part and the inner wall of the drying tube 12, and the lower part bends toward the inner wall of the side of the drying tube 12 that is connected to the connecting tube 14, and connects with the inner wall of the drying tube 12, so that the hot airflow can flow upward under the action of the baffle plate 15.

[0035] In a preferred embodiment, to prevent the baffle plate 15 from affecting the hot airflow into the drying pipe 12, the cross-section of the baffle plate 15 is an arc-shaped structure with the opening facing the connecting pipe 14.

[0036] In this embodiment, in order to ensure the material suction effect of the drying tube 12 under the action of the negative pressure fan 24, the lower end of the drying tube 12 extends to the bottom of the powder storage cylinder 11, and the gap between the drying tube 12 and the bottom of the powder storage cylinder 11 is 4-7cm.

[0037] As a preferred embodiment, in order to further ensure the material suction effect of the drying tube 12, the bottom of the powder storage cylinder 11 has an inverted frustum or inverted pyramidal structure.

Claims

1. A capsule fill powder drying apparatus, characterized by, It includes a connected drying system (1) and a separation system (2); The separation system (2) includes a cyclone separator (22), whose feed pipe (222) is connected to the drying system (1), and an airlock (23) is provided on the discharge pipe (224), and a negative pressure fan (24) is provided on the air outlet pipe (223). The drying system (1) includes a powder storage cylinder (11) and a drying pipe (12) that is vertically arranged and inserted into the air storage cylinder at its lower end. The upper end of the drying pipe (12) is connected to the feed pipe of the cyclone separator (22). The drying system (1) also includes a hot air blower (13), which is connected to the lower part of the drying pipe (12) through a connecting pipe (14), and the air force is less than that of the negative pressure blower (24).

2. The capsule filling powder drying device according to claim 1, characterized in that, The middle section of the drying tube (12) is spiral-shaped.

3. The capsule filling powder drying device according to claim 2, characterized in that, The spiral angle of the middle spiral section of the drying tube (12) is not greater than 40°, and the number of spiral turns is not less than 3 turns.

4. The capsule filling powder drying device according to claim 1, characterized in that, A baffle plate (15) is provided inside the position where the drying tube (12) and the connecting tube (14) communicate. The baffle plate (15) is vertically installed inside the drying tube (12), with its two sides connected to the inner wall of the drying tube (12). There is a gap between the upper part and the inner wall of the drying tube (12), and the lower part bends toward the inner wall of the side where the drying tube (12) connects with the connecting tube (14) and is connected to the inner wall of the drying tube (12).

5. The capsule filling powder drying device according to claim 4, characterized in that, The cross-section of the wind deflector (15) is an arc-shaped structure with the opening facing the connecting pipe (14).

6. The capsule filling powder drying device according to claim 1, characterized in that, The connection point between the connecting pipe (14) and the drying pipe (12) is located outside the powder storage cylinder (11).

7. A capsule filling powder drying apparatus according to any one of claims 1-6, characterized in that, The lower end of the drying tube (12) extends to the bottom of the powder storage cylinder (11), and the gap between the drying tube (12) and the bottom of the powder storage cylinder (11) is 4-7cm.

8. The capsule filling powder drying device according to claim 7, characterized in that, The bottom of the powder storage cylinder (11) has an inverted frustum or inverted truncated pyramid shape.

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