Spray drying tower with long service life

Abstract

The utility model discloses a spray drying tower with longer service life, which belongs to the field of medicine manufacturing and comprises a tower main body and a powder collector integrally connected to the lower end of the tower main body. The powder collector comprises a powder collector front wall, a powder collector rear wall, a powder collector left wall, a powder collector right wall and a powder collector bottom plate, the discharging pipe is installed on the bottom plate, and a collecting cavity defined by the powder collector is communicated with a working cavity defined by the tower body. The outer wall of at least one of the powder collector front wall, the powder collector rear wall, the powder collector left wall and the powder collector right wall is provided with an air hammer hitting position, and at least one air hammer hitting position is provided with an anti-hitting component. According to the utility model, the problem of frequent cracking is solved.

Description

Technical Field

[0001] This utility model relates to pharmaceutical production, and more specifically, to a spray drying tower with a long service life. Background Technology

[0002] In pharmaceutical manufacturing, spray drying involves spraying materials in solution form (such as pharmaceutical solutions or extracts) from other processes into droplets in a spray drying tower. These droplets are then instantly dried upon contact with hot air to obtain a solid powder product, which is then discharged from the bottom of the spray drying tower's cone.

[0003] In spray drying production, in order to ensure the discharge of solid powder products and prevent material accumulation, the air hammer in the air hammer chamber periodically strikes the cone.

[0004] The air hammer impact points of the spray drying tower vibrate due to the operation of the air hammer. After a certain number of cumulative impacts, fatigue cracks will appear in the tower body. After welding and grinding repairs, cracks will reappear after 1-2 months. Repeated welding repairs will still result in cracks, thus affecting the lifespan of the spray drying tower. Utility Model Content

[0005] To address the aforementioned problems, this invention provides a spray drying tower with a longer lifespan, which aims to improve at least one of the problems mentioned in the background art.

[0006] A spray drying tower with a long service life includes a tower body and a powder collector integrally connected to the lower end of the tower body. The bottom of the powder collector is connected to a discharge pipe. The powder collector includes a front wall, a rear wall, a left wall, a right wall, and a bottom plate. The discharge pipe is installed on the bottom plate. The collection chamber formed by the powder collector is connected to the working chamber formed by the tower body. At least one of the outer walls of the front wall, rear wall, left wall, and right wall of the powder collector is provided with an air hammer impact position. At least one air hammer impact position is equipped with an anti-impact component.

[0007] Optionally, each of the front wall, rear wall, left wall, and right wall of the powder collector is provided with a pneumatic hammer striking position, and each pneumatic hammer striking position is equipped with an anti-impact component.

[0008] Optionally, each impact-resistant component includes a lower plate that conforms to the shape of the impact point of the pneumatic hammer and an upper plate that conforms to the shape of the lower plate. The lower plate is connected to the impact point of the pneumatic hammer, and the upper plate is connected to the lower plate.

[0009] Optionally, the connection is welding.

[0010] Optionally, the lower plate has a diameter of 350-500 mm and a thickness of 3-7 mm, and the upper plate has a diameter of 220-320 mm and a thickness of 3-7 mm.

[0011] Optionally, the lower plate is made of stainless steel, and the upper plate is made of stainless steel.

[0012] Optionally, the powder collector is cone-shaped, wider at the top and narrower at the bottom.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] This invention can extend the life of spray drying towers and solve the problem of frequent cracking. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a schematic front view of the powder collector of this utility model;

[0018] Figure 3 This is a schematic diagram of the impact-resistant component structure of this utility model.

[0019] Explanation of reference numerals in the attached drawings: 1. Tower body, 2. Powder collector, 3. Discharge pipe, 4. Collection chamber, 5. Working chamber, 6. Impact-resistant component, 7. Lower plate, 8. Upper plate. Detailed Implementation

[0020] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, an indirect connection through an intermediate medium, or the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0021] In the description of this utility model, it should be understood that the terms "upper," "lower," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In the description of this utility model, "a plurality of" means two or more, unless otherwise precisely specified.

[0022] The terms “first,” “second,” “third,” “fourth,” etc. (if present) in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a particular order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented, for example, in orders other than those illustrated or described herein. Furthermore, the terms “comprising” and “having,” and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0024] Please refer to Figure 1-3 , Figure 1 This is a schematic diagram of the structure of this utility model. Figure 2 This is a schematic front view of the powder collector of this utility model. Figure 3 This is a schematic diagram of the impact-resistant component structure of this utility model.

[0025] A spray drying tower with a long service life includes a tower body 1 and a powder collector 2 integrally connected to the lower end of the tower body 1. The bottom of the powder collector 2 is connected to a discharge pipe 3. The powder collector 2 includes a front wall, a rear wall, a left wall, a right wall, and a bottom plate. The discharge pipe 3 is installed on the bottom plate. The collection chamber 4 formed by the powder collector 2 is connected to the working chamber 5 formed by the tower body 1. At least one of the outer walls of the front wall, rear wall, left wall, and right wall of the powder collector is provided with an air hammer impact position. At least one air hammer impact position is equipped with an anti-impact component 6.

[0026] In one or more specific embodiments of this utility model, each of the front wall, rear wall, left wall, and right wall of the powder collector is provided with a pneumatic hammer striking position, and each pneumatic hammer striking position is equipped with an anti-impact component 6.

[0027] In one or more specific embodiments of this utility model, each anti-impact component 6 includes a lower plate 7 that matches the shape of the impact point of the air hammer and an upper plate 8 that matches the shape of the lower plate 7. The lower plate 7 is connected to the impact point of the air hammer, and the upper plate 8 is connected to the lower plate 7.

[0028] In one or more specific embodiments of this utility model, the lower plate 7 is welded to the air hammer striking position, and the upper plate 8 is welded to the lower plate 7.

[0029] In one or more specific embodiments of this utility model, the lower plate 7 has a diameter of 400mm and a thickness of 5mm, and the upper plate 8 has a diameter of 300mm and a thickness of 5mm.

[0030] In one or more specific embodiments of this utility model, the lower plate 7 is a stainless steel plate and the upper plate 8 is a stainless steel plate.

[0031] In one or more specific embodiments of this utility model, the powder collector 2 is a cone-shaped body, which is larger at the top and smaller at the bottom.

[0032] By installing the upper plate 8 and the lower plate 7, the force of the air hammer is dispersed during impact (i.e., the impact stress is dispersed), while the wall thickness of the powder collector 2 is strengthened, thereby extending the service life of the spray drying tower. After installing the upper plate 8 and the lower plate 7, no cracks appeared for at least one year, effectively solving the problem of frequent cracking.

[0033] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A spray drying tower with a long service life, comprising a tower body (1) and a powder collector (2) integrally connected to the lower end of the tower body (1), wherein a discharge pipe (3) is connected to the bottom of the powder collector (2), the powder collector (2) includes a front wall, a rear wall, a left wall, a right wall, and a bottom plate, the discharge pipe (3) is installed on the bottom plate, the collection chamber (4) formed by the powder collector (2) communicates with the working chamber (5) formed by the tower body (1), and at least one of the outer walls of the front wall, rear wall, left wall, and right wall of the powder collector is provided with an air hammer impact position, characterized in that, At least one air hammer striking position is equipped with an anti-impact component (6).

2. The spray drying tower with a long service life according to claim 1, characterized in that, Each of the powder collector’s front wall, rear wall, left wall, and right wall is provided with a pneumatic hammer striking position, and each pneumatic hammer striking position is equipped with an anti-impact component (6).

3. The spray drying tower with a long service life according to claim 1, characterized in that, Each impact-resistant component (6) includes a lower plate (7) that matches the shape of the impact point of the air hammer and an upper plate (8) that matches the shape of the lower plate (7). The lower plate (7) is connected to the impact point of the air hammer, and the upper plate (8) is connected to the lower plate (7).

4. The spray drying tower with a long service life according to claim 3, characterized in that, The connection is welding.

5. The spray drying tower with a long service life according to claim 3, characterized in that, The lower plate (7) has a diameter of 350-500 mm and a thickness of 3-7 mm, while the upper plate (8) has a diameter of 220-320 mm and a thickness of 3-7 mm.

6. The spray drying tower with a long service life according to claim 3, characterized in that, The lower plate (7) is made of stainless steel, and the upper plate (8) is made of stainless steel.

7. The spray drying tower with a long service life according to claim 1, characterized in that, The powder collector (2) is a cone-shaped body, with a larger top and a smaller bottom.

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