VC powder bin loading funnel
By using a structure consisting of an arch-breaking cone, a vent pipe, and an air curtain trough, combined with a blower and a vibrating motor, the problems of material arching and residue in the VC powder silo loading hopper were solved, achieving smooth material flow and clean production.
Patent Information
- Application Number
- CN202521911612.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-05
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-09-05
AI Technical Summary
Existing VC powder silo loading hoppers are prone to forming material arches and residues, resulting in low production efficiency and material waste, as well as difficulties in cleaning and the risk of cross-contamination.
It adopts a structure of arch-breaking cone, air pipe and air curtain groove, combined with blower and vibrating motor, to promote material flow through airflow and vibration, eliminate dead zones and material arches, and reduce friction.
It enables smooth material flow, reduces residue, lowers production costs, avoids cross-contamination, and improves production efficiency.
Smart Images

Figure CN224676909U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of mechanical equipment, and in particular to a VC powder silo filling funnel. Background Technology
[0002] Vitamin C powder, a common food additive and pharmaceutical ingredient, has physical properties such as high viscosity, easy adsorption, and a tendency to absorb moisture and clump. In industrial production, vitamin C powder is typically stored and transferred through silos. The loading funnel, as a key component connecting the conveying equipment and the silo, directly affects production efficiency and material loss.
[0003] Currently, the powder silo filling hoppers commonly used in the industry are mostly simple conical structures. This structure has the following significant drawbacks: 1. Easily forms material arches and rat holes: Due to the adhesive properties of VC powder, friction and adsorption forces are easily generated between powder particles during the discharge process, thus forming stable "material arches" (or "bridging") or "rat holes" above the discharge port of the funnel. This prevents the material from falling smoothly, causing interruptions in the loading and unloading process, requiring manual intervention to clear the blockage, which seriously affects production efficiency. 2. Severe material residue: The simple conical structure contains flow "dead zones," causing a large amount of material to adhere to and remain on the inner wall of the funnel. This not only wastes materials and increases production costs, but also makes thorough cleaning extremely difficult when changing material types, easily leading to cross-contamination between different batches of materials, posing a risk to product quality and safety in the food and pharmaceutical industries. Utility Model Content
[0004] (a) Technical problems to be solved To address the aforementioned problems in the prior art, this utility model provides a VC powder hopper filling funnel.
[0005] (II) Technical Solution To achieve the above objectives, the main technical solutions adopted by this utility model include: A VC powder hopper includes a hopper body and an arch-breaking cone, wherein the arch-breaking cone is installed in the discharge pipe of the hopper body via a connector.
[0006] Preferably, it also includes a vent pipe, an air curtain trough, and a blower; The air curtain groove is located at the bottom of the arch-breaking cone; The blower's outlet is connected to the ventilation pipe, and the ventilation pipe's outlet is positioned directly opposite the air curtain trough.
[0007] Preferably, the connecting member is a hanger rod, and the outer wall of the arch-breaking cone is connected to the inner wall of the funnel body through multiple hangers rods. The vent pipe enters into one of the hangers rods and extends through the hanger rod to directly below the air curtain groove.
[0008] Preferably, the air inlet of the blower is connected to an inert gas storage tank.
[0009] Preferably, the connecting member is a tension spring, and a plurality of tension springs are equally spaced along the circumference of the outer wall of the arch-breaking cone. The end of the tension spring away from the arch-breaking cone is connected to the inner wall of the funnel body, and a vibration motor is installed inside the arch-breaking cone.
[0010] Preferably, the air curtain groove is a semi-circular groove.
[0011] (III) Beneficial Effects The beneficial effects of this utility model are as follows: 1. The arch-breaking cone forces the material to flow out from the annular gaps around it, guiding the material from the center to the outlets around the perimeter, avoiding the accumulation of material in dead corners. When the material flows over the inclined surface of the cone, it will generate mutual shearing motion, which helps to break up the slight agglomerates that have already formed, making the material more loose, and also forcing the material near the side wall of the funnel to move towards the center in order to flow out. This "activates" the material in the "dead zone" near the funnel wall that may not have flowed before, forcing them into the main flow channel and preventing the formation of material arches in the funnel body. 2. The airflow blown out by the vent pipe impacts the air curtain groove to form an annular air curtain. The powder material moves downward under the action of gravity. When the powder particles approach the gap of the air curtain groove, they will encounter this continuously overflowing airflow. The airflow overcomes the gravity of the powder particles and blows them away, thus completely preventing the powder particles from falling back into the vent pipe. The introduced gas penetrates into the surrounding powder, causing the powder to be slightly fluidized, greatly reducing the friction and viscosity between the powders. In synergy with the cone block, it further promotes the smooth flow of the material. 3. The vibration motor can drive the arch-breaking cone to shake, which forces the material adhering to the surface of the arch-breaking cone and the funnel wall to peel off, eliminating dead zone material in the funnel body, making the unloading of the funnel more thorough and significantly reducing the residual amount. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the structure of a VC powder silo loading funnel; Figure 2 This is a schematic diagram of the structure of the first embodiment of the present utility model; Figure 3 This is a schematic diagram of the structure of the second embodiment of the present utility model.
[0013] [Explanation of Labels in the Attached Image] 1. Funnel body; 2. Arch-breaking cone; 3. Hanging rod; 4. Air curtain trough; 5. Ventilation tube; 6. Blower; 7. Tension spring; 8. Vibration motor. Detailed Implementation
[0014] To better explain and facilitate understanding of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings and specific embodiments.
[0015] Please refer to Figures 1 to 2 The first embodiment of this utility model: A VC powder hopper includes a hopper body 1 and an arch-breaking cone 2, wherein the arch-breaking cone 2 is installed in the discharge pipe of the hopper body 1 via a connector. When in use, the arch-breaking cone 2 forces the material to flow out from the annular gaps around it, guiding the material from the center to the outlets around the perimeter, thus preventing the material from accumulating in dead corners. When the material flows over the inclined surface of the cone, it generates mutual shearing motion, which helps to break up the slight agglomerates that have already formed, making the material more loose, and also requiring the material near the side wall of the funnel to move towards the center in order to flow out. This "activates" the material in the "dead zone" near the funnel wall that may not have flowed before, forcing them into the main flow channel and preventing the formation of material arches inside the funnel body 1.
[0016] In this embodiment, a ventilation pipe 5, an air curtain trough 4, and a blower 6 are also included; The air curtain groove 4 is located at the bottom of the arch-breaking cone 2; The air outlet of the blower 6 is connected to the ventilation pipe 5. The air outlet of the ventilation pipe 5 is positioned directly opposite the air curtain groove 4. The connecting member is a hanger 3. The outer wall of the arch-breaking cone 2 is connected to the inner wall of the funnel body 1 through multiple hangers 3. The ventilation pipe 5 enters into one of the hangers 3 and extends through the hanger 3 to directly below the air curtain groove 4. In use, after the gas is ejected vertically from the opening of the vent pipe 5, it immediately impacts the air curtain groove 4. This airflow cannot continue forward, so its direction of movement changes by 90 degrees, and it spreads evenly in all directions along the annular space of the air curtain groove 4. This spreading gas forms a 360° uniform annular air curtain without dead angles. The powder material moves downward under the action of gravity. When the powder particles approach the gap of the air curtain groove 4, they will encounter this continuously overflowing airflow. The airflow overcomes the gravity of the powder particles and blows them away, thus completely preventing the powder particles from falling back into the vent pipe 5. The introduced gas penetrates into the surrounding powder, causing the powder to slightly fluidize, greatly reducing the friction and viscosity between the powder particles. In synergy with the pointed cone, it further promotes the smooth flow of the material.
[0017] In this embodiment, the air inlet of the blower 6 is connected to an inert gas storage tank.
[0018] refer to Figure 3 The second embodiment of this utility model: The connecting component is a tension spring 7. Multiple tension springs 7 are equally spaced along the circumference of the outer wall of the arch-breaking cone 2. The end of the tension spring 7 away from the arch-breaking cone 2 is connected to the inner wall of the funnel body 1. A vibration motor 8 is installed inside the arch-breaking cone 2. When in use, the vibration motor 8 can drive the arch-breaking cone 2 to shake. The shaking can force the material attached to the surface of the arch-breaking cone 2 and the funnel wall to peel off, which can eliminate the dead zone material in the funnel body 1, making the unloading of the funnel more thorough and significantly reducing the residual amount.
[0019] In this embodiment, the air curtain groove 4 is a semi-circular groove.
[0020] The circuits, electronic components, and modules involved are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated upon. The content protected by this utility model does not involve any improvement to the software and methods.
[0021] The above are merely embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent modifications made based on the content of this utility model specification and drawings, or direct or indirect applications in related technical fields, are similarly included within the patent protection scope of this utility model.
[0022] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A VC powder silo filling funnel, characterized in that, The device includes a funnel body, an arch-breaking cone, a venting pipe, an air curtain trough, and a blower. The arch-breaking cone is installed inside the discharge pipe of the funnel body via a connector. The air curtain trough is located at the bottom of the arch-breaking cone. The air outlet of the blower is connected to the venting pipe, and the air outlet of the venting pipe is positioned directly opposite the air curtain trough.
2. The VC powder silo filling funnel according to claim 1, characterized in that, The connector is a boom, and the outer wall of the arch-breaking cone is connected to the inner wall of the funnel body through multiple booms. The vent pipe enters into one of the booms and extends through the boom to directly below the air curtain groove.
3. The VC powder silo filling funnel according to claim 1, characterized in that, The air inlet of the blower is connected to an inert gas storage tank.
4. A VC powder silo filling funnel according to claim 1, characterized in that, The connecting component is a tension spring. Multiple tension springs are evenly spaced along the circumference of the outer wall of the arch-breaking cone. The end of the tension spring away from the arch-breaking cone is connected to the inner wall of the funnel body. A vibration motor is installed inside the arch-breaking cone.
5. A VC powder silo filling funnel according to claim 1, characterized in that, The air curtain groove is a semi-circular groove.