Vibrating powder bin discharge device

Abstract

A kind of powder bin vibration type discharging device, including fixed nozzle and the movable nozzle connected in the lower port of the fixed nozzle;Fixed nozzle is overall cylindrical, movable nozzle is overall conical hopper, flexible pipe body is connected between the upper port of movable nozzle and the lower port of fixed nozzle;Multiple upper seat plates are uniformly distributed in the upper part of movable nozzle, multiple lower seat plates are uniformly distributed in the lower part of fixed nozzle, and elastic support assembly is arranged between corresponding upper seat plate and lower seat plate;Vibrator is arranged on the support of the lower port of movable nozzle;The discharging device adopts the mode of fixed nozzle and movable nozzle combination to assist discharging, vibration force is generated to movable nozzle by vibrator during discharging, and then drive conical body to vibrate at high frequency in fixed nozzle, directly vibrate impact to the bottom of bin with greater density or agglomerate, can be fully broken to powder, ensure normal discharging, and will not cause damage to the structure of powder bin body, facilitate to ensure job safety.

Description

Technical Field

[0001] This utility model relates to the field of biopharmaceutical material storage and feeding, and in particular to a vibrating feeding device for powder silos. Background Technology

[0002] Powder storage tanks are widely used in biopharmaceutical processes. They are typically made of stainless steel, such as 304 or 316L, which offers excellent corrosion resistance, high-temperature resistance, and wear resistance, enabling them to withstand the harsh conditions of pharmaceutical manufacturing and ensuring drug quality and safety. The inner surface of the tank is usually mirror-polished, resulting in extremely low roughness, effectively preventing material contamination during storage and facilitating cleaning.

[0003] Common powder storage tanks are cylindrical. During powder storage, the lower part of the tank experiences higher pressure, leading to increased density and even clumping, which can cause blockages during discharge. Currently, this problem is mainly addressed by installing vibrators on the side wall of the tank, as disclosed in utility model patent CN2016203900482, which describes a storage tank for preventing powder scaling. However, this pure vibration discharge method is not effective at breaking up clumped powder, and prolonged strong vibration can damage the tank, compromising operational safety. Further improvements are needed. Utility Model Content

[0004] To solve the above problems, this utility model proposes a vibrating feeding device for powder silos.

[0005] The technical solution of this utility model is: a vibrating feeding device for powder silos, including a fixed nozzle and a movable nozzle connected to the lower port of the fixed nozzle; the diameter of the movable nozzle is slightly smaller than that of the fixed nozzle, the fixed nozzle is cylindrical in shape, the movable nozzle is conical in shape, the lower port of the movable nozzle is provided with a discharge pipe, the port of the discharge pipe is provided with a flange plate, and a flexible tube is connected between the upper port of the movable nozzle and the lower port of the fixed nozzle; multiple upper seat plates are evenly distributed on the upper part of the movable nozzle, and multiple lower seat plates are evenly distributed on the lower part of the fixed nozzle, both the upper and lower seat plates are isosceles trapezoidal in shape, and elastic support components are provided between the corresponding upper and lower seat plates; a vibrator is provided on the support set at the lower port of the movable nozzle.

[0006] Preferably, the upper end of the movable nozzle is coaxially provided with a cone-shaped body, and the cone-shaped body and the movable nozzle are fixedly connected as one unit by a diagonal brace. The cone-shaped body extends upward into the fixed nozzle, and the size of the lower end of the cone-shaped body is smaller than the size of the upper end of the movable nozzle. The tip of the cone-shaped body is arranged upward.

[0007] Preferably, the elastic support assembly includes a guide post and a spring. Guide holes are provided at corresponding positions on the upper and lower seat plates. The guide post is vertically slidably fitted between the guide holes and can slide vertically within the guide holes. The spring is fitted on the guide post between the upper and lower seat plates.

[0008] Preferably, the upper end of the guide post is provided with an upper stop block, and a rubber pad and a plastic pad are fitted on the guide post between the upper stop block and the upper seat plate. The upper stop block is a circular block, and the rubber pad and the plastic pad are both circular.

[0009] Preferably, the lower end of the guide post is provided with a nut stop, a rubber seat is sleeved between the nut stop and the lower seat plate, the nut stop is supported on the bottom surface of the rubber seat, and a protrusion is provided in the middle of the rubber seat that fits into the lower guide hole.

[0010] Preferably, a plurality of upper reinforcing plates are evenly provided between the upper seat plate and the outer side of the fixed nozzle, and a plurality of lower reinforcing plates are evenly provided between the lower seat plate and the outer side of the movable nozzle. The upper and lower reinforcing plates are welded and fixed between the seat plate and the nozzle.

[0011] Preferably, the flexible tube is a corrugated rubber tube.

[0012] Preferably, the corrugated rubber tube has an upper annular groove at the upper end and a lower annular groove at the lower end. The upper annular groove is sleeved with the upper annular protrusion at the lower end of the fixed nozzle, and the lower annular groove is sleeved with the lower annular protrusion at the lower end of the movable nozzle. Both the upper and lower annular grooves have extensions on their inner sides to increase the contact area and prevent powder from entering the grooves.

[0013] The beneficial technical effects of this utility model are as follows: The feeding device uses a combination of fixed and movable feeding nozzles for assisted feeding. During feeding, the vibrator generates vibration force on the movable feeding nozzle, which in turn drives the cone to vibrate at high frequency inside the fixed feeding nozzle. This vibration impacts the powder material at the bottom of the silo, which has a high density or is clumped together. This can fully crush and clear the powder material, ensuring smooth feeding, and will not damage the structure of the powder silo body, thus ensuring operational safety. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of the feeding device installed on the powder silo;

[0015] Figure 2 This is a three-dimensional structural diagram of the feeding device;

[0016] Figure 3 This is a schematic diagram of the main structure of the feeding device;

[0017] Figure 4 yes Figure 3 A schematic diagram of the AA-direction cross-section structure;

[0018] Figure 5 yes Figure 3 Schematic diagram of the BB-direction cross-section structure;

[0019] Figure 6 This is a three-dimensional structural diagram of a fixed nozzle;

[0020] Figure 7 This is a three-dimensional structural diagram of the movable nozzle.

[0021] In the diagram, 1. Fixed nozzle, 11. Upper seat plate, 12. Upper reinforcing plate, 2. Movable nozzle, 21. Lower seat plate, 22. Support, 23. Vibrator, 24. Conical body, 25. Diagonal brace, 26. Lower reinforcing plate, 3. Elastic support assembly, 31. Guide post, 32. Spring, 33. Rubber pad, 34. Plastic pad, 35. Nut stop, 36. Rubber seat, 37. Upper stop, 4. Corrugated rubber tube, 41. Upper annular groove, 42. Lower annular groove, 43. Upper annular protrusion, 44. Lower annular protrusion, 5. Feeding device, 6. Powder hopper. Detailed Implementation

[0022] Example 1, see appendix Figure 1-2 6-7, a vibratory feeding device 5 for a powder silo 6, comprising a fixed nozzle 1 and a movable nozzle 2 connected to the lower port of the fixed nozzle 1; the fixed nozzle 1 is cylindrical in shape, the movable nozzle 2 is conical in shape, a discharge pipe is provided at the tip of the movable nozzle 2, a flexible tube is connected between the upper port of the movable nozzle 2 and the lower port of the fixed nozzle 1, and a flexible connection is established between the movable nozzle 2 and the fixed nozzle 1; multiple upper seat plates 11 are evenly distributed on the upper part of the movable nozzle 2, and multiple lower seat plates 21 are evenly distributed on the lower part of the fixed nozzle 1, the upper seat plates 11 and the lower seat plates 21 are arranged correspondingly to each other, and an elastic support component 3 is provided between the corresponding upper seat plates 11 and lower seat plates 21; a vibrator 23, which is a vibrating motor, is provided on the support 22 provided at the lower port of the movable nozzle 2.

[0023] The upper end of the movable nozzle 2 is coaxially provided with a cone 24. The cone 24 and the movable nozzle 2 are fixedly connected as one unit by a diagonal brace 25. The tip of the cone 24 is arranged upward. The fixed nozzle 1 is connected to the lower end of the powder hopper 6. Therefore, the cone 24 can extend into the interior of the fixed nozzle 1 and directly contact the powder below.

[0024] The fixed nozzle 1 of the feeding device 5 is integrally connected to the powder silo 6 and is in a fixed state. The movable nozzle 2 is flexibly connected to the fixed nozzle 1 through a flexible tube, forming a combined auxiliary feeding structure. During feeding, the vibrator 23 generates vibration force on the movable nozzle 2, and the elastic support component 3 generates elastic support force between the two, thereby causing the cone 24 in the movable nozzle 2 to generate high-frequency vibration in the fixed nozzle 1. This vibration impacts the powder with high density or clumps at the bottom of the silo, fully crushing and clearing the powder, ensuring smooth feeding, and avoiding damage to the main structure of the powder silo 6, thus ensuring operational safety.

[0025] Example 2, see appendix Figure 2-3 5. This embodiment is basically the same as Embodiment 1, and the similarities will not be repeated. The difference is that the elastic support assembly 3 includes a guide post 31 and a spring 32. Guide holes are provided at corresponding positions on the upper seat plate 11 and the lower seat plate 21. The guide post 31 is vertically slidably fitted between the guide holes, and the spring 32 is fitted on the guide post 31 between the upper seat plate 11 and the lower seat plate 21. When the movable nozzle 2 generates vibration force under the action of the vibrator 23, the movable nozzle 2 will slide along the guide post 31. The spring 32 provides elastic support for the movable nozzle 2, thereby causing the movable nozzle 2 to generate high-frequency vibration force.

[0026] The upper end of the guide post 31 is provided with an upper stop block 37. A rubber pad 33 and a plastic pad 34 are fitted on the guide post 31 between the upper stop block 37 and the upper seat plate 11. The rubber pad 33 and the plastic pad 34 are used to provide elastic support for the impact force of the downward vibration of the movable nozzle 2, and play a role in controlling the vibration amplitude of the movable nozzle 2 from the top. The lower end of the guide post 31 is provided with a nut stop block 35. A rubber seat 36 is fitted between the nut stop block 35 and the lower seat plate 21. The rubber seat 36 has a protrusion in the middle that fits into the lower guide hole. The rubber seat 36 is used to provide elastic support for the impact force of the upward vibration of the movable nozzle 2, and play a role in controlling the vibration amplitude of the movable nozzle 2 from the bottom. By combining the elastic support, the vibration frequency can be increased and the crushing and clearing effect on the material can be increased.

[0027] Several upper reinforcing plates 12 are evenly arranged between the upper seat plate 11 and the outer side of the fixed nozzle 1, and several lower reinforcing plates 26 are evenly arranged between the lower seat plate 21 and the outer side of the movable nozzle 2. The reinforcing plates are used to improve the connection strength of the seat plate and ensure that sufficient support force can be provided for the elastic support assembly 3.

[0028] Example 3, see appendix Figure 3-4This embodiment is basically the same as Embodiment 1, and the similarities will not be repeated. The difference is that the flexible tube body is a corrugated rubber tube 4. The corrugated rubber tube 4 has the advantages of good flexibility and wear resistance, and can effectively cope with vibration and impact. The upper end of the corrugated rubber tube 4 is provided with an upper annular groove 41, and the lower end is provided with a lower annular groove 42. The upper annular groove 41 is sleeved with the upper annular protrusion 43 at the lower end of the fixed nozzle 1, and the lower annular groove 42 is sleeved with the lower annular protrusion 44 at the lower end of the movable nozzle 2. This sleeve is an interference fit structure to ensure the sealing of the connection and prevent material leakage from gaps. This slot connection structure facilitates the installation and disassembly of the corrugated rubber tube 4, and allows for quick replacement during production operations, avoiding disruption to normal production progress.

Claims

1. A vibrating feeding device for powder silos, characterized in that: It includes a fixed nozzle and a movable nozzle connected to the lower port of the fixed nozzle; the fixed nozzle is cylindrical in shape, and the movable nozzle is conical in shape. A flexible tube connects the upper port of the movable nozzle and the lower port of the fixed nozzle; multiple upper seat plates are evenly distributed on the upper part of the movable nozzle, and multiple lower seat plates are evenly distributed on the lower part of the fixed nozzle. An elastic support assembly is provided between the corresponding upper and lower seat plates; a vibrator is provided on the support set at the lower port of the movable nozzle.

2. The powder silo vibrating feeding device according to claim 1, characterized in that: The upper end of the movable nozzle is coaxially provided with a cone-shaped body, and the cone-shaped body and the movable nozzle are fixedly connected as one unit by a diagonal brace, with the tip of the cone-shaped body facing upward.

3. The vibrating feeding device for powder silos according to claim 1, characterized in that: The elastic support assembly includes a guide post and a spring. Guide holes are provided at corresponding positions on the upper and lower seat plates. The guide post is vertically slidably fitted between the guide holes, and the spring is fitted on the guide post between the upper and lower seat plates.

4. The powder silo vibrating feeding device according to claim 3, characterized in that: The upper end of the guide post is provided with an upper stop block, and a rubber pad and a plastic pad are fitted on the guide post between the upper stop block and the upper seat plate.

5. The powder silo vibrating feeding device according to claim 4, characterized in that: The lower end of the guide post is provided with a nut stop, and a rubber seat is fitted between the nut stop and the lower seat plate. The middle of the rubber seat is provided with a protrusion that fits into the lower guide hole.

6. The powder silo vibrating feeding device according to claim 3, characterized in that: Several upper reinforcing plates are evenly arranged between the upper seat plate and the outer side of the fixed nozzle, and several lower reinforcing plates are evenly arranged between the lower seat plate and the outer side of the movable nozzle.

7. The powder silo vibrating feeding device according to claim 1, characterized in that: The flexible tube is a corrugated rubber tube.

8. A vibrating feeding device for powder silos according to claim 7, characterized in that: The corrugated rubber tube has an upper annular groove at the upper end and a lower annular groove at the lower end. The upper annular groove is sleeved with the upper annular protrusion at the lower end of the fixed nozzle, and the lower annular groove is sleeved with the lower annular protrusion at the lower end of the movable nozzle.

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