Stock bin feeding device
By using a combination of telescopic tube and control system in the silo feeding device, the problems of material dust and segregation in the silo are solved, dust control and accurate material level measurement are achieved, and process stability and environmental benefits are improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-18
- Publication Date
- 2026-03-10
AI Technical Summary
The dust and segregation of materials in the existing silo affect the accuracy of the level sensor, leading to process instability, and the material exhibits a 'crater'-like distribution when falling short distances.
By combining a telescopic tube with a level sensor, controller, drive motor and hoisting mechanism, the lifting and lowering of the telescopic tube is controlled by a wire rope, enabling short-distance material conveying and accurate metering.
It effectively reduces dust concentration, minimizes dust dispersion, improves the metering accuracy of level sensors, prevents material segregation, enhances process stability, and reduces energy consumption.
Smart Images
Figure CN223983189U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a material storage device, and more particularly to a silo feeding device. Background Technology
[0002] As a crucial node in modern industrial production systems, silos, seemingly simple storage devices, are in fact vital hubs connecting raw material preparation and processing. In industries such as chemical, metallurgical, building materials, and food processing, silos fulfill core functions including material buffering, process integration, and quality control. Materials typically enter the silo directly from the inlet. Dust generated by falling materials can affect the accuracy of level sensors, and material segregation, causing stratification of coarse and fine materials, directly impacts the stable operation of subsequent processes. These adverse phenomena are widespread in the raw material handling stages of industries such as cement, metallurgy, and chemicals.
[0003] Therefore, developing a silo feeding device that effectively reduces material dust and material flow exhibits a typical "crater" distribution, allows the silo level sensor to accurately measure the silo level, effectively controls the feeding switch through interlocking of the level sensor, and ensures that the material falls over a short distance without material segregation in the "crater" shape, has become a technical problem that urgently needs to be solved by those skilled in the art. Summary of the Invention
[0004] To address the aforementioned technical problems, this utility model provides a silo feeding device, which aims to effectively reduce material dust, prevent material segregation during short-distance descent, and accurately measure the silo level using a silo level sensor. It also features high space utilization, good flexibility, reduced dust leakage, and adaptability to various materials.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A hopper feeding device has the following structure: the feed inlet is connected to the feed end of a telescopic tube extending into the hopper; a material level sensor is installed at the discharge port of the telescopic tube; the input end of the controller is electrically connected to the material level sensor; the output end of the controller is electrically connected to a drive motor; the output shaft of the drive motor is connected to the transmission component of a winch mechanism; a steel wire rope is wound on the winch mechanism; and the steel wire rope is fixedly connected to the discharge port of the telescopic tube.
[0007] Preferably, the inlet end of the telescopic tube is a funnel-shaped structure.
[0008] Preferably, the material conveying pipeline of the aforementioned silo is connected to the inlet via a flange.
[0009] Preferably, a controller is installed on the outer top cover of the aforementioned silo.
[0010] Preferably, the winch mechanism is equipped with a brake.
[0011] Preferably, the aforementioned drive motor and winch mechanism are housed within a square housing, which is mounted on the outer top cover of the hopper.
[0012] By adopting the above technical solution, this utility model has the following beneficial effects:
[0013] Compared with traditional silo feed inlets, this utility model has the following advantages: Traditional methods involve materials falling freely with a 3-5 meter drop, impacting the material pile and increasing dust emissions by 30%-50%. This utility model uses a telescopic pipe to shorten the drop distance to 0.3-1 meter, and combined with a sealed pipe, reduces dust concentration by 80%. Taking cement as an example, actual PM10 levels in the plant decreased from 150 mg / m³ to 25 mg / m³. With traditional fixed-pipe feeding, the separation rate of coarse and fine mineral powder particles reaches 15-20%. With this utility model, because the telescopic pipe feeds close to the material surface, the separation rate is <3%. Process costs are optimized. Taking a coking plant as an example, after installing the telescopic pipe, the dust removal system's operating time is reduced by 40%, saving 120,000 kWh of electricity annually, and the calibration frequency of the material level sensor is reduced from once a week to once a month.
[0014] The advantages of this utility model's hopper feeding device using an electrically controlled telescopic tube for material conveying are as follows: high space utilization, the telescopic tube can be folded or extended, occupying little space, suitable for narrow or compact sites, reducing interference with other equipment; good flexibility, the length and angle can be adjusted to adapt to material conveying needs of different distances or directions, especially suitable for multi-station or dynamic feeding scenarios; reduced dust leakage, the enclosed design can reduce dust emission during material conveying, improve the working environment, and meet environmental protection requirements; adaptable to various materials, by adjusting the diameter and material of the telescopic tube, it can convey materials of different forms and compositions, such as granules and powders.
[0015] This invention effectively reduces material dust and the material flow exhibits a typical "crater" distribution. In this way, the silo level sensor can accurately measure the silo level, effectively control the feed switch through interlocking of the level sensor, and the material falls over a short distance without the "crater" material segregation. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the internal structure of the telescopic tube in its retracted state, as shown in the main view of this utility model.
[0017] Figure 2 This is a schematic diagram of the internal structure of the telescopic tube body in its extended state, as shown in the main view of this utility model.
[0018] Figure 3 for Figure 1 A schematic diagram of the internal structure of AA.
[0019] Legend: 1. Hopper, 2. Telescopic pipe, 3. Level sensor, 4. Controller, 5. Feed inlet, 6. Hoisting mechanism, 7. Wire rope, 8. Brake, 9. Drive motor, 10. Material conveying pipeline. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0021] like Figure 1 - Figure 2 As shown, the present invention discloses a silo feeding device, the structure of which is as follows: A feed inlet 5 is connected to the material conveying pipeline 10 of the silo 1 via a flange. The feed inlet 5 is connected to the feed end of the telescopic pipe 2 extending into the silo 1. The feed end of the telescopic pipe 2 has a funnel-shaped structure. A material level sensor 3 is installed at the discharge port of the telescopic pipe 2. A controller 4 is installed on the outer top cover of the silo 1. The input end of the controller 4 is electrically connected to the material level sensor 3. The output end of the controller 4 is electrically connected to the drive motor 9. The output shaft of the drive motor 9 is connected to the transmission component of the winch mechanism 6. A steel wire rope 7 is wound on the winch mechanism 6. A brake 8 is installed on the winch mechanism 6. The steel wire rope 7 is fixedly connected to the discharge port of the telescopic pipe 2.
[0022] The aforementioned drive motor 9, hoisting mechanism 6, and brake 8 are housed within a rectangular housing, which is mounted on the outer top cover of the hopper 1.
[0023] The telescopic tube 2 can be made of different materials depending on factors such as the materials being transported, the application scenario, environmental conditions, and cost control. For example, it can be made of aluminum alloy, stainless steel, carbon fiber, engineering plastics, galvanized steel / carbon steel, titanium alloy, etc.
[0024] The controller 4 mentioned above can be a Siemens Smart series programmable controller, the hoisting mechanism 6 can be an NMRV110-100 worm gear, and the material level sensor 3 can be an NI8M18LIU02MRS44 sensor. The above components are preferred models, but can also be replaced according to the specific conditions of the conveyed material.
[0025] The working principle and installation method of this utility model are as follows: The material feeding device of this utility model has a telescopic tube 2 installed at the discharge end of the material inlet 5 of the silo 1. The telescopic tube 2 is connected to the material inlet 5 and the material conveying pipeline 10. The lifting and lowering of the telescopic tube 2 is determined by the material level sensor 3. When the material in the silo decreases, the material level sensor 3 sends a feedback signal to the controller 4. The controller 4 drives the drive motor 9. After the drive motor 9 rotates, it drives the hoisting mechanism 6 to release the wire rope 7. The wire rope 7 controls the extension of the telescopic tube 2 to add material. Conversely, the telescopic tube 2 can be raised according to the material level. The drive motor 9 drives the hoisting mechanism 6 to wind up the wire rope 7, raising the telescopic tube 2.
[0026] This device effectively reduces material dust and the material flow exhibits a typical "crater" distribution. This allows the silo level sensor to accurately measure the silo level, effectively controlling the feed switch via interlocking with the level sensor. Furthermore, the material falls over a short distance, preventing "crater" material segregation.
Claims
1. A bin feed device characterized by The structure is as follows: the feeding port (5) is communicated with the feeding end of the telescopic pipe body (2) extending into the bin (1), the discharge port of the telescopic pipe body (2) is provided with a material level sensor (3), the input end of a controller (4) is electrically connected with the material level sensor (3), the output end of the controller (4) is electrically connected with a transmission motor (9), the output shaft of the transmission motor (9) is connected with the transmission part of a hoisting mechanism (6), the hoisting mechanism (6) is provided with a steel wire rope (7) wound thereon, and the steel wire rope (7) is fixedly connected with the discharge port of the telescopic pipe body (2).
2. A bin feed device according to claim 1, characterised in that The feeding end of the telescopic pipe body (2) is a funnel-shaped structure.
3. A bin feed device according to claim 1, wherein The material conveying pipeline (10) of the bin (1) is connected with the feeding port (5) through flanges.
4. A feed bin inlet apparatus according to claim 1 or claim 3, wherein The controller (4) is arranged above the outer top cover of the bin (1).
5. A bin feed apparatus according to claim 1, wherein The hoisting mechanism (6) is provided with a brake (8).
6. A bin feed apparatus according to claim 1, wherein The transmission motor (9) and the hoisting mechanism (6) are arranged in a square shell, and the shell is mounted on the outer top cover of the bin (1).