Anti-sticking filling hopper and filling device for freeze-dried powder

Abstract

The embodiment of the utility model relates to a perfusion equipment, especially relates to a kind of anti-sticking filling hopper and freeze-dried powder filling device, comprising: hopper body, at least one water-absorbing material layer;Hopper body around preset axis direction includes: inner wall, with the outer wall opposite to inner wall, inner wall is enclosed around the axis direction of hopper body and forms feeding area, the two ends of feeding area along preset axis direction are respectively feeding side, and the discharge side opposite to feeding side;At least one interlayer space is formed between inner wall and outer wall, the side of inner wall away from outer wall is smooth surface, and inner wall is distributed and communicates with nanometer micropore in interlayer space, and water-absorbing material layer is filled in each interlayer space.In comparison with prior art, water vapor in feeding area can be absorbed by water-absorbing material layer, so that the caking phenomenon of freeze-dried powder can be effectively prevented, and the problem of powder adhesion on the inner wall of hopper body can be greatly alleviated, effectively avoiding secondary pollution of freeze-dried powder during filling.

Description

Technical Field

[0001] The embodiments of this utility model relate to a filling device, and more particularly to an anti-stick filling hopper and a filling device for freeze-dried powder. Background Technology

[0002] In the filling process of freeze-dried powders (especially high-value-added powders such as bacterial liquid freeze-dried powders and pharmaceutical excipients), the adhesion of powder materials to the hopper wall has long constrained production efficiency and product quality. Currently, this problem is mainly addressed by methods such as scraping the inner wall of the hopper with a scraper. However, this method easily causes wear on the inner wall of the hopper, leading to more severe adhesion of the freeze-dried powder later. Furthermore, the freeze-dried powder adhering to the inner wall of the hopper can easily cause secondary contamination of subsequently added powders. Moreover, this method cannot handle the adhesion problem of micron-sized powders. Utility Model Content

[0003] In order to solve the above problems or at least partially solve the above technical problems, some embodiments of this utility model have designed an anti-stick filling hopper and a filling device for freeze-dried powder, which can greatly alleviate the problem of powder adhesion on the inner wall of the hopper, thereby effectively preventing secondary pollution of freeze-dried powder during filling.

[0004] To achieve the above objectives, some embodiments of this utility model provide an anti-stick filling hopper, comprising:

[0005] The hopper body includes, around a preset axis, an inner wall and an outer wall opposite to the inner wall; wherein, the inner wall forms a feeding area around the preset axis for receiving and dispensing freeze-dried powder, and the two ends of the feeding area along the preset axis are a feeding side and a discharging side opposite to the feeding side, respectively; at least one interlayer space is formed between the inner wall and the outer wall; and the side of the inner wall facing away from the outer wall is a smooth surface, and the inner wall is distributed with nanopores communicating with the interlayer space;

[0006] At least one layer of absorbent material is filled in each of the said interlayer spaces.

[0007] In addition, an embodiment of this utility model designs a filling device for freeze-dried powder, comprising:

[0008] As described above, the non-stick filling hopper;

[0009] A conveying platform; the conveying platform is provided with several workstations along its conveying direction, each workstation is detachably provided with a storage container, and each storage container receives the freeze-dried powder discharged from the discharge side of the hopper body when it is conveyed to a preset position by the conveying platform;

[0010] The main control module is communicatively connected to the conveying platform and is used to control the conveying platform to convey each of the storage containers in a preset conveying direction.

[0011] Compared with the prior art, the embodiments of this utility model include an anti-stick filling hopper comprising a hopper body and at least one absorbent material layer. The hopper body includes an inner wall and an outer wall opposite to the inner wall along a preset axis, and at least one interlayer space is formed between the inner wall and the outer wall. The side of the inner wall away from the outer wall is a smooth surface. The smooth surface can reduce the friction between the freeze-dried powder and the inner wall of the hopper body, so that the freeze-dried powder put into the feeding area can be quickly discharged from the discharge side. In addition, since the interlayer space formed between the inner wall and the outer wall is filled with at least one absorbent material layer, the absorbent material layer can absorb the moisture in the feeding area, thereby effectively preventing the freeze-dried powder from clumping and greatly alleviating the problem of powder adhesion on the inner wall of the hopper body, effectively preventing secondary pollution of the freeze-dried powder during filling. Attached Figure Description

[0012] 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 in the following description are only used to illustrate some embodiments of this application. For those skilled in the art, without creative effort, they can obtain other technical features, connection relationships, and even method steps not mentioned in the drawings based on these drawings.

[0013] Figure 1 This is a schematic diagram of the structure of the anti-stick filling hopper in some embodiments of the present invention;

[0014] Figure 2 This is a schematic diagram of the assembly of the side wall, outer wall, absorbent material layer and breathable waterproof layer in some embodiments of this utility model;

[0015] Figure 3 This is a schematic diagram of the structure of the freeze-dried powder filling device in some embodiments of the present invention;

[0016] Figure 4 This is a system module block diagram of a freeze-dried powder filling device in some embodiments of the present invention. Detailed Implementation

[0017] 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 should fall within the scope of protection of this application.

[0018] Example 1

[0019] The first embodiment of this utility model provides an anti-stick filling hopper, such as... Figure 1 As shown, it includes: a hopper body 1 and at least one absorbent material layer 2. The hopper body 1 includes: an inner wall 13 and an outer wall 14 opposite to the inner wall 13 in the direction of a preset axis. The inner wall 13 forms a feeding area 15 in the direction of the axis of the hopper body 1. The two ends of the feeding area 15 in the direction of the preset axis are a feeding side 11 and a discharge side 12 opposite to the feeding side 11, respectively.

[0020] In addition, combined Figure 2 As shown, at least one interlayer space 16 is formed between the inner wall 13 and the outer wall 14, and the side of the inner wall 13 facing away from the outer wall 14 is a smooth surface. The inner wall 13 is distributed with nanopores 131 that communicate with the interlayer space 16, and the water-absorbing material layer 2 fills each interlayer space 16.

[0021] As can be seen from the above, the anti-stick filling hopper includes a hopper body 1 and at least one absorbent material layer 2. The hopper body 1 includes an inner wall 13 and an outer wall 14 opposite to the inner wall 13 around a preset axis. At least one interlayer space 16 is formed between the inner wall 13 and the outer wall 14. The side of the inner wall 13 away from the outer wall 14 is a smooth surface. The smooth surface can reduce the friction between the freeze-dried powder and the inner wall 13 of the hopper body 1, so that the freeze-dried powder put into the feeding area 15 can be quickly discharged from the discharge side 12. In addition, since the interlayer space 16 formed between the inner wall 13 and the outer wall 14 is filled with at least one absorbent material layer 2, the absorbent material layer 2 can absorb the moisture in the feeding area 15, thereby effectively preventing the freeze-dried powder from clumping and greatly alleviating the problem of powder adhesion on the inner wall 13 of the hopper body 1, effectively avoiding secondary pollution of the freeze-dried powder during filling.

[0022] Specifically, in some embodiments, the absorbent material layer 2 can be a desiccant interlayer. This desiccant interlayer can effectively absorb moisture in the feeding area 15, ensuring that the feeding area 15 of the hopper body 1 remains in a dry environment. This effectively prevents the freeze-dried powder from clumping and significantly alleviates the problem of powder adhesion to the inner wall 13 of the hopper body 1. It should be noted that the absorbent material layer 2 described above can only be a desiccant interlayer. In other embodiments, the absorbent material layer 2 can also be made of other materials, such as a molecular sieve interlayer. However, this embodiment does not specifically limit the type of absorbent material layer 2. Furthermore, in other embodiments, such as... Figure 1 As shown, the feeding area 15 gradually narrows from the feeding side 11 to the discharging side 12, resulting in a larger opening diameter on the feeding side 11 and a smaller opening diameter on the discharging side 12. This facilitates both the feeding of freeze-dried powder and the filling of freeze-dried powder into the storage container. Furthermore, in some embodiments, to meet the filling requirements of freeze-dried powder in different application scenarios, the feeding side 11 and the discharging side 12 of the hopper body 1 can be coaxially arranged along a preset axis, ensuring the shortest feeding distance between them. This further prevents the freeze-dried powder from adhering to the inner wall 13 of the hopper body 1 and further prevents clumping. Of course, in other embodiments, the feeding side 11 and the discharging side 12 can also be eccentrically arranged along a preset axis, allowing the hopper body 1 to fill freeze-dried powder at various angles.

[0023] Additionally, in other embodiments, such as Figure 1 As shown, the interlayer space 16 between the inner wall 13 and the outer wall 14 can be a single space. Of course, in other embodiments, multiple interlayer spaces 16 can also be provided. Furthermore, when there is a single interlayer space 16, it can be formed around the circumference of the hopper body 1. At this time, there can be one or multiple water-absorbing material layers 2, and each water-absorbing material layer 2 can be filled in each interlayer space 16. Through the water-absorbing material layers 2 filled in the interlayer spaces 16, each water-absorbing material layer 2 can absorb the moisture in the feeding area 15, avoiding the phenomenon of freeze-dried powder clumping and adhering to the inner wall 13. Furthermore, as an alternative, when multiple interlayer spaces 16 are provided, each interlayer space 16 can be equidistantly arranged around the axis of the hopper body 1, and at least one water-absorbing material layer 2 can be provided in each interlayer space 16, so that each water-absorbing material layer 2 provided in each interlayer space 16 can uniformly absorb the moisture in the feeding area 15, thereby further preventing the freeze-dried powder from clumping and adhering to the inner wall 13.

[0024] Furthermore, it should be noted that, in order to fix the absorbent material layer 2 within the interlayer space 16, in some embodiments, regardless of whether there is one or multiple interlayer spaces 16, when each absorbent material layer 2 is directly fixed within the interlayer space 16 by filling, the absorbent material layer 2 should be filled as completely as possible within each interlayer space 16, so that each absorbent material layer 2 can have a better water absorption effect on the feeding area 15. When there are multiple interlayer spaces 16, each interlayer space 16 can be equidistantly arranged around the inner wall 13 and the outer wall 14 along a preset axis, so that the absorbent material layer 2 filled within each interlayer space 16 can uniformly absorb moisture in the feeding area 15. It should also be noted that, in addition to being directly filled within the interlayer space 16, the absorbent material layer 2 can also be bonded to the inner wall 13 and / or the outer wall 14 by adhesive, thereby achieving the same fixation of the absorbent material layer 2 within the interlayer space 16.

[0025] Additionally, as a preferred embodiment, in other embodiments, such as Figure 1 and Figure 2 As shown, a breathable and waterproof layer 5 is also provided on the side of the inner wall 13 away from the outer wall 14. This breathable and waterproof layer 5 prevents the freeze-dried powder from adhering to the inner wall 13 due to moisture, without affecting the water absorption performance of each absorbent material layer 2 in the feeding area 15. This allows the freeze-dried powder fed into the feeding area 15 from the feeding side 11 to be quickly discharged from the discharging side 12, thereby achieving the filling of the storage container 6. Furthermore, it should be noted that in some embodiments, the breathable and waterproof layer 5 can be a polyethylene terephthalate (PET) film. In other embodiments, other waterproof films with microporous structures, such as polytetrafluoroethylene (PTFE) films, can also be used. However, in this embodiment, the type of breathable and waterproof layer 5 is not specifically limited.

[0026] Furthermore, since freeze-dried powder is highly susceptible to moisture absorption during filling due to environmental humidity, it is prone to clumping and agglomeration. The adhesion of freeze-dried powder to the inner wall 13 of the hopper body 1 during filling is also primarily due to moisture absorption. Therefore, as a preferred solution, in other embodiments, such as... Figure 1 As shown, the anti-stick filling hopper also includes a humidity detection module 3 and an air replenishment device 4. The humidity detection module 3 is located above the hopper body 1 and is used to detect the humidity of the feeding area 15. The air replenishment device 4 is used to replenish inert gas to the feeding area 15 of the hopper body 1 after it is opened. Additionally, combined with... Figure 4As shown, both the humidity detection module 3 and the gas replenishment device 4 are communicatively connected to the main control module 100 of the filling device. The humidity detection module 3 sends the measured humidity value to the main control module 100, causing the main control module 100 to open the gas replenishment device 4 when the obtained humidity value is greater than a threshold. This allows inert gas to be replenished to the feeding area 15 through the gas replenishment device 4. During the replenishment of inert gas, excess water vapor and oxygen in the feeding area 15 can be squeezed out, thus maintaining the dryness of the feeding area 15. In addition, by detecting the humidity of the feeding area 15 of the hopper body 1 through the humidity detection module 3, the main control module 100 can control the opening and closing of the gas replenishment device 4. This can prevent the freeze-dried powder from sticking to the inner wall 13 of the hopper body 1 due to moisture, and since the gas replenishment device 4 does not need to be opened for a long time, it can also reduce the energy consumption of the filling device to a certain extent. Furthermore, it should be noted that in some embodiments, the humidity detection module 3 can be a humidity sensor, which can be suspended above the feeding area 15 of the hopper body 1, while the probe of the temperature sensor can be inserted into the feeding area 15, so that the temperature sensor can effectively detect the humidity of the feeding area 15 of the hopper body 1.

[0027] Specifically, in some embodiments, such as Figure 1 As shown, the gas replenishment device 4 includes: a gas storage tank 41, a gas supply pipeline 42, and a switching valve 43. The gas storage tank 41 stores inert gas. The gas supply pipeline 42 is connected to the outlet of the gas storage tank 41, and the outlet of the gas supply pipeline 42 extends from the feeding side 11 of the hopper body 1 into the feeding area 15. Finally, the switching valve 43 is installed on the gas supply pipeline 42, and this switching valve 43 is used to open or disconnect the gas supply pipeline 42. Specifically, as shown... Figure 4 As shown, the switching valve 43 is communicatively connected to the main control module 100 of the filling device. This switching valve 43 is opened by the main control module 100 when the obtained humidity value exceeds a threshold, allowing the gas supply line 42 to transport the inert gas stored in the gas storage tank 41 to the feeding area 15 of the hopper body 1. Furthermore, it is worth mentioning that the gas supply line 42 is a flexible gooseneck pipe, enabling it to deliver inert gas to the feeding area 15 of the hopper body 1 at various angles depending on the actual usage scenario.

[0028] Example 2

[0029] Embodiment 2 of this utility model relates to a filling device for freeze-dried powder, such as... Figure 3 As shown, the filling device includes: an anti-stick filling hopper, a conveying platform 7, and a main control module 100 as described in Embodiment 1.

[0030] Among them, combined Figure 3As shown, the conveying platform 7 is provided with several workstations 71 along its conveying direction, and each workstation 71 is detachably provided with a storage container 6. When the storage container 6 is conveyed to the preset position by the conveying platform 7, it receives the freeze-dried powder discharged from the discharge side 12 of the hopper body 1.

[0031] In addition, such as Figure 4 As shown, the main control module 100 is connected to the conveying platform 7. The main control module 100 is used to control the conveying platform 7 to convey each storage container 6 in a preset conveying direction, so that each storage container 6 can be conveyed to the bottom of the discharge side 12 of the hopper body 1, so as to ensure that the anti-stick filling hopper can fill the freeze-dried powder into the storage container 6.

[0032] As can be seen from the above, the anti-stick filling hopper includes a hopper body 1 and at least one absorbent material layer 2. The hopper body 1 includes an inner wall 13 and an outer wall 14 opposite to the inner wall 13 around a preset axis. At least one interlayer space 16 is formed between the inner wall 13 and the outer wall 14. The side of the inner wall 13 away from the outer wall 14 is a smooth surface. The smooth surface can reduce the friction between the freeze-dried powder and the inner wall 13 of the hopper body 1, so that the freeze-dried powder put into the feeding area 15 can be quickly discharged from the discharge side 12. In addition, since the interlayer space 16 formed between the inner wall 13 and the outer wall 14 is filled with at least one absorbent material layer 2, the absorbent material layer 2 can absorb the moisture in the feeding area 15, thereby effectively preventing the freeze-dried powder from clumping and greatly alleviating the problem of powder adhesion on the inner wall 13 of the hopper body 1, effectively avoiding secondary pollution of the freeze-dried powder during filling.

[0033] Finally, it should be noted that those skilled in the art will understand that many technical details have been presented in the embodiments of this application to facilitate a better understanding of the present application. However, even without these technical details and various changes and modifications based on the above embodiments, the technical solutions claimed in the claims of this application can be substantially achieved. Therefore, in practical applications, various changes can be made to the above embodiments in form and detail without departing from the spirit and scope of this application.

Claims

1. A non-stick filling hopper, characterized in that, include: Hopper body; The hopper body includes an inner wall and an outer wall opposite to the inner wall along a preset axis. The inner wall forms a feeding area around the preset axis for receiving and dispensing freeze-dried powder, and the two ends of the feeding area along the preset axis are a feeding side and a discharging side opposite to the feeding side, respectively. At least one interlayer space is formed between the inner wall and the outer wall. The side of the inner wall facing away from the outer wall is a smooth surface, and the inner wall is distributed with nanopores communicating with the interlayer space. At least one layer of absorbent material is filled in each of the said interlayer spaces.

2. The anti-stick filling hopper according to claim 1, characterized in that, The absorbent material layer is a desiccant interlayer; or, the absorbent material layer is a molecular sieve interlayer.

3. The anti-stick filling hopper according to claim 1, characterized in that, When one interlayer space is provided, the interlayer space is formed around the circumference of the hopper body; When multiple interlayer spaces are provided, each interlayer space is arranged around the circumference of the hopper body; Each of the aforementioned interlayer spaces contains at least one layer of absorbent material.

4. The anti-stick filling hopper according to claim 1, characterized in that, The feeding side and the discharging side are coaxially or eccentrically arranged along the preset axis, and the feeding area gradually decreases from the feeding side to the discharging side.

5. The anti-stick filling hopper according to claim 1, characterized in that, A breathable and waterproof layer is provided on the side of the inner wall away from the outer wall.

6. The anti-stick filling hopper according to claim 5, characterized in that, The breathable and waterproof layer is a polyethylene terephthalate (PET) film; or, the breathable and waterproof layer is a polytetrafluoroethylene (PTFE) film.

7. The anti-stick filling hopper according to any one of claims 1-6, characterized in that, The anti-stick filling hopper also includes: A humidity detection module is installed on the hopper body to detect the humidity of the feeding area; An air replenishment device is used to replenish inert gas to the feeding area of ​​the hopper body after it is opened; The humidity detection module and the air replenishment device are both connected to the main control module of the filling device. The humidity detection module is used to send the measured humidity value to the main control module, so that the main control module can open each of the air replenishment devices when the obtained humidity value is greater than a threshold.

8. The anti-stick filling hopper according to claim 7, characterized in that, The gas replenishment device includes: Gas storage tank, used to store inert gases; An air supply pipeline is connected to the air outlet of the air storage tank; wherein the air outlet of the air supply pipeline extends from the feeding side of the hopper body into the feeding area; A switching valve is installed on the gas supply pipeline and is used to open or disconnect the gas supply pipeline; The switching valve is communicatively connected to the main control module of the filling device. It is opened when the main control module obtains a humidity value greater than a threshold, so that the gas supply pipeline can transport the inert gas stored in the gas storage tank to the feeding area of ​​the hopper body.

9. The anti-stick filling hopper according to claim 8, characterized in that, The gas supply pipeline is a flexible gooseneck tube.

10. A filling device for freeze-dried powder, characterized in that, include: The anti-stick filling hopper as described in any one of claims 1-9; A conveying platform; the conveying platform is provided with several workstations along its conveying direction, each workstation is detachably provided with a storage container, and each storage container receives the freeze-dried powder discharged from the discharge side of the hopper body when it is conveyed to a preset position by the conveying platform; The main control module is communicatively connected to the conveying platform and is used to control the conveying platform to convey each of the storage containers in a preset conveying direction.

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