Feeding structure for pharmaceutical preparation production

Abstract

The utility model relates to a feeding structure for pharmaceutical preparation production. The feeding structure comprises a columnar shell, a circular truncated cone pipe, a feeding pipe and an exhaust pipeline, the feeding pipe conveys medicine powder through air pressure, air carries the medicine powder to move downwards in a coiled mode along the feeding pipe, the other end of the feeding pipe penetrates into the second cavity upwards in a coiled mode, so that the air rotating downwards enters the inner wall of the circular truncated cone pipe in the second cavity, and due to the fact that the annular wall of the circular truncated cone pipe is gradually shrunk downwards, the medicine powder is fed into the feeding pipe. When the mixed gas reaches a certain position, through different centrifugal forces of the medicine powder and the gas, most of the gas turns over and moves upwards, most of the gas is discharged to the outside through the exhaust pipe, and the medicine powder falls into the stirring kettle; by means of the structure, medicine powder and gas are separated, continuous and stable feeding is achieved, and the problem that the air pressure in the stirring kettle is too high is solved.

Description

Technical Field

[0001] The utility model relates to the field of medicine powder transportation, in particular to a feeding structure for the production of medicine preparations. Background Art

[0002] The production of drug powder generally adopts the following ways to convey and feed: 1. Screw conveyor is a commonly used powder material conveying equipment, which pushes the material to the discharge port through the rotating spiral blades. This conveying method is suitable for short-distance and large-scale drug powder conveying; 2. Pneumatic conveying uses gas (usually air) as a carrier to convey drug powder from one place to another. This conveying method is suitable for long-distance and large-scale drug powder conveying, and can avoid dust pollution; 3. Bucket elevator is a vertical conveying equipment, which lifts drug powder from a low place to a high place through chains and buckets. This conveying method is suitable for vertical drug powder conveying; 4. Belt conveyor is a horizontal conveying equipment, which conveys drug powder from one position to another through a belt. This conveying method is suitable for horizontal drug powder conveying. Among them, drug powder needs to be conveyed in a sterile environment, so pneumatic conveying of drug powder is mostly used. The drug powder is fed to the next process through the gas in the conveying pipeline, and the next process is such as mixing multiple drug powders. However, in the prior art, multiple conveying pipes are connected to the stirring kettle, which increases the air pressure in the stirring kettle. Excessive air pressure in the stirring kettle may cause leakage at the pipe joints or other sealing components, and may also cause leakage of drug powder, causing harm to operators and the environment. Utility Model Content

[0003] The main purpose of the utility model is to provide a feeding structure for producing pharmaceutical preparations, so as to solve the problem in the prior art that the gas pressure in the stirring kettle will increase when a plurality of conveying pipelines are connected to the stirring kettle.

[0004] In order to achieve the above-mentioned purpose, the utility model provides a feeding structure for the production of pharmaceutical preparations, including a columnar shell, a truncated cone tube, a feeding pipe and an exhaust duct;

[0005] The cylindrical shell has a first cavity and a second cavity from top to bottom;

[0006] The truncated cone tube is located in the second cavity, the expanded end of the truncated cone tube is fixedly arranged on the inner wall of the cylindrical shell, and the truncated cone tube and the cylindrical shell are arranged coaxially, and the closed end of the truncated cone tube faces downward;

[0007] The feeding pipe conveys the powder by wind pressure, one end of the feeding pipe is located in the second cavity and faces the expanded end of the truncated cone tube, and the other end of the feeding pipe spirals upward and penetrates into the first cavity and passes out of the first cavity;

[0008] The exhaust duct includes a first vertical section and a V-shaped section. The first vertical section is coaxially fixed in the cylindrical shell. The bottom end of the first vertical section is located in the second cavity and directly above the flared end of the truncated cone tube. The top end of the first vertical section passes through the cylindrical shell and is connected to the V-shaped section. The open end of the V-shaped section faces upward, and the sealed end of the V-shaped section is provided with an opening and closing opening.

[0009] A preferred solution is that a partition is fixedly arranged inside the vertically arranged columnar shell, and the partition divides the columnar shell into a first cavity and a second cavity from top to bottom.

[0010] A preferred solution is that the opening and closing port includes a vertical tube and a cylinder, one end of the vertical tube is connected to the sealed end of the V-shaped section, the other end of the vertical tube is circumferentially provided with an external thread, the open inner wall of the cylinder is circumferentially provided with an internal thread, and the external thread is threadedly connected with the internal thread.

[0011] A preferred solution is that the exhaust duct further includes a second vertical section, and the second vertical section is connected to an end of the V-shaped section away from the first vertical section.

[0012] A preferred solution is that a first conical shell is coaxially fixedly arranged in the second vertical section, a first gap is formed between the flared end of the first conical shell and the inner wall of the second vertical section, and the opening end of the first conical shell faces downward.

[0013] A preferred solution is that the closed end of the truncated cone tube is coaxially connected to the material pipe, and the material pipe is vertically arranged.

[0014] A preferred solution is that a second conical shell is coaxially fixedly arranged in the material receiving pipe, a second gap is formed between the expanded end of the second conical shell and the inner wall of the material receiving pipe, and the opening end of the second conical shell faces downward.

[0015] A preferred solution is that the feed pipe is a square pipe.

[0016] The beneficial effects of the above scheme are:

[0017] The closed end of the truncated cone tube is connected to the stirring kettle, and the feeding pipe conveys the powder by means of gas wind pressure. The gas carries the powder and moves in a spiral downward along the feeding pipe, and then spirals upward through the other end of the feeding pipe to penetrate into the second cavity, so that the rotating downward gas enters the inner wall of the truncated cone tube in the second cavity. As the annular wall of the truncated cone tube gradually shrinks downward, the mixed gas continuously approaches the axis of the truncated cone tube, and the tangential speed of the mixed gas rotation continuously increases. When the mixed gas reaches a certain position, due to the different centrifugal forces between the powder and the gas, most of the gas will flip and move upward, and most of the gas will be discharged to the outside through the exhaust pipe, and the powder will fall into the stirring kettle. Such a structure realizes the separation of powder and gas, thereby achieving uninterrupted and stable feeding, and avoiding the problem of excessive gas pressure in the stirring kettle. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0019] Figure 1 It is a front view structural schematic diagram of the feeding structure used in the production of pharmaceutical preparations of the utility model;

[0020] Figure 2 It is a schematic cross-sectional view of the first state of the feed structure for producing pharmaceutical preparations of the utility model;

[0021] Figure 3 It is a schematic cross-sectional structural diagram of the second state of the feed structure for producing pharmaceutical preparations of the utility model.

[0022] Description of Reference Numerals

[0023] 10. Columnar housing; 11. First cavity; 12. Second cavity; 13. Partition;

[0024] 20. Round cone tube;

[0025] 30. Feed pipe;

[0026] 40. Exhaust duct; 41. First vertical section; 42. V-shaped section; 43. Second vertical section;

[0027] 50. opening and closing port; 51. vertical tube; 52. cylinder;

[0028] 60. Material receiving pipe;

[0029] 70. First conical shell;

[0030] 80. Second conical shell. DETAILED DESCRIPTION

[0031] The following is a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention. In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention can also be implemented in other ways different from those described herein, and those skilled in the art can make similar generalizations without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0032] The embodiments of the utility model are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the utility model, and should not be construed as limitations on the utility model. In the description of the utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the utility model can be understood according to specific circumstances. In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0033] like Figures 1 to 3 As shown, this embodiment provides a feeding structure for the production of pharmaceutical preparations, including a cylindrical shell 10, a frustum tube 20, a feeding pipe 30 and an exhaust duct 40.

[0034] like Figure 2 As shown, a partition 13 is fixedly arranged in the vertically arranged cylindrical shell 10, and the partition 13 divides the cylindrical shell 10 from top to bottom into a first cavity 11 and a second cavity 12. The truncated cone tube 20 is located in the second cavity 12, and the flared end of the truncated cone tube 20 is fixedly arranged on the inner wall of the cylindrical shell 10, and the truncated cone tube 20 is coaxially arranged with the cylindrical shell 10, and the closed end of the truncated cone tube 20 faces downward. The closed end of the truncated cone tube 20 is coaxially connected to the material receiving pipe 60, and the material receiving pipe 60 is arranged vertically. The bottom end of the material receiving pipe 60 is connected to the stirring kettle (not shown). The feeding pipe 30 is a square tube. The feeding pipe 30 conveys the powder by wind pressure, one end of the feeding pipe 30 is located in the second cavity 12, and one end of the feeding pipe 30 faces the flared end of the truncated cone tube 20, and the other end of the feeding pipe 30 spirals upward to penetrate into the first cavity 11, and the other end of the feeding pipe 30 passes through the first cavity 11.

[0035] The exhaust duct 40 includes a first vertical section 41 and a V-shaped section 42. The first vertical section 41 is coaxially fixed in the cylindrical shell 10. The bottom end of the first vertical section 41 is located in the second cavity 12, and the bottom end of the first vertical section 41 is located directly above the flared end of the truncated cone tube 20. The top end of the first vertical section 41 passes through the cylindrical shell 10 and is connected to the V-shaped section 42. The open end of the V-shaped section 42 faces upward, and the sealed end of the V-shaped section 42 is provided with an opening and closing port 50.

[0036] The exhaust duct 40 also includes a second vertical section 43, which is connected to one end of the V-shaped section 42 away from the first vertical section 41. The V-shaped section 42 is provided to help exhaust gas with a certain amount of powder, which will be retained at the sealed end of the V-shaped section 42 and recovered through the opening and closing port 50. The opening and closing port 50 includes a vertical tube 51 and a cylinder 52. One end of the vertical tube 51 is connected to the sealed end of the V-shaped section 42, and the other end of the vertical tube 51 is provided with an external thread (not shown) on the circumference, and the open inner wall of the cylinder 52 is provided with an internal thread (not shown), and the external thread is screwed with the internal thread. The screw connection between the external thread and the internal thread can realize the recovery of the powder at the sealed end of the V-shaped section 42.

[0037] The closed end of the truncated cone tube 20 is connected to the stirring kettle, and the feeding pipe 30 conveys the powder by gas wind pressure. The gas carries the powder and moves downward in a spiral motion along the feeding pipe 30, and spirals upward through one end of the feeding pipe 30 to penetrate into the first cavity 12, so that the rotating downward gas enters the inner wall of the truncated cone tube 20 in the second cavity 12. As the annular wall of the truncated cone tube 20 gradually shrinks downward, the mixed gas continuously approaches the axis of the truncated cone tube 20, and the tangential speed of the mixed gas rotation continuously increases. When the mixed gas reaches a certain position, due to the different centrifugal forces between the powder and the gas, most of the gas will flip and move upward, and most of the gas will be discharged to the outside through the exhaust pipe, and the powder falls into the stirring kettle. Such a structure realizes the separation of powder and gas, thereby achieving uninterrupted and stable feeding, and avoiding the problem of excessive air pressure in the stirring kettle.

[0038] like Figure 3 As shown, a first conical shell 70 is coaxially fixedly disposed in the second vertical section 43, a first gap is formed between the flared end of the first conical shell 70 and the inner wall of the second vertical section 43, and the open end of the first conical shell 70 faces downward. A second conical shell 80 is coaxially fixedly disposed in the material receiving tube 60, a second gap is formed between the flared end of the second conical shell 80 and the inner wall of the material receiving tube 60, and the open end of the second conical shell 80 faces downward.

[0039] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0040] Obviously, the described embodiments are only some embodiments of the utility model, not all embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

Claims

1. A feeding structure for the production of pharmaceutical preparations, characterized in that: include: A columnar housing (10), wherein the columnar housing (10) comprises a first cavity (11) and a second cavity (12) from top to bottom; a truncated cone tube (20), the truncated cone tube (20) being located in the second cavity (12), the flared end of the truncated cone tube (20) being fixedly arranged on the inner wall of the columnar shell (10), the truncated cone tube (20) being coaxially arranged with the columnar shell (10), and the closed end of the truncated cone tube (20) facing downwards; a feeding pipe (30), the feeding pipe (30) conveying medicine powder by wind pressure, one end of the feeding pipe (30) being located in the second cavity (12) and facing the expanded end of the truncated cone tube (20), and the other end of the feeding pipe (30) spiraling upward to penetrate into the first cavity (11) and pass out of the first cavity (11); The exhaust duct (40) comprises a first vertical section (41) and a V-shaped section (42), wherein the first vertical section (41) is coaxially fixedly arranged in the columnar shell (10), the bottom end of the first vertical section (41) is located in the second cavity (12) and directly above the flared end of the truncated cone tube (20), the top end of the first vertical section (41) passes through the columnar shell (10) and is connected to the V-shaped section (42), the open end of the V-shaped section (42) faces upward, and the sealed end of the V-shaped section (42) is provided with an opening and closing opening (50).

2. The feeding structure for producing a pharmaceutical preparation according to claim 1, characterized in that: A partition plate (13) is fixedly arranged inside the vertically arranged columnar housing (10), and the partition plate (13) divides the columnar housing (10) from top to bottom into the first cavity (11) and the second cavity (12).

3. The feeding structure for producing a pharmaceutical preparation according to claim 1, characterized in that: The opening and closing port (50) comprises a vertical tube (51) and a cylinder (52), one end of the vertical tube (51) being in communication with the sealed end of the V-shaped section (42), the other end of the vertical tube (51) being circumferentially provided with an external thread, the open inner wall of the cylinder (52) being circumferentially provided with an internal thread, the external thread being threadedly connected with the internal thread.

4. The feeding structure for producing a pharmaceutical preparation according to claim 1, characterized in that: The exhaust duct (40) further comprises a second vertical section (43), wherein the second vertical section (43) is connected to an end of the V-shaped section (42) away from the first vertical section (41).

5. The feeding structure for producing a pharmaceutical preparation according to claim 4, characterized in that: A first conical shell (70) is coaxially fixedly disposed in the second vertical section (43), a first gap is formed between the flared end of the first conical shell (70) and the inner wall of the second vertical section (43), and the open end of the first conical shell (70) faces downward.

6. The feed structure for producing a pharmaceutical preparation according to any one of claims 1 to 5, characterized in that: The closed end of the truncated cone tube (20) is coaxially connected to a material receiving tube (60), and the material receiving tube (60) is arranged vertically.

7. The feeding structure for producing a pharmaceutical preparation according to claim 6, characterized in that: A second conical shell (80) is coaxially fixedly disposed inside the material receiving tube (60), a second gap is formed between the flared end of the second conical shell (80) and the inner wall of the material receiving tube (60), and the open end of the second conical shell (80) faces downward.

8. The feeding structure for producing a pharmaceutical preparation according to claim 1, characterized in that: The feed pipe (30) is a square pipe.

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