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Hopper conveyor belt, also known as bucket conveyor or hopper feeding belt, is an efficient and economical material conveying equipment. The following is a detailed introduction to it: 
1、 Structural composition 
The hopper type belt conveyor is mainly composed of a driving device (including a reverse device), a conveyor belt (or traction chain), a hopper, a tensioning device, a frame (or shell, including horizontal, reversing, and vertical sections), a head wheel, and a tail wheel. Among them, the two sides of the hopper are connected to two parallel conveyor belts (or traction chains) through connecting rings, and the head wheel is equipped with teeth that match the conveyor belts (or traction chains). 
2、 Working principle 
When the driving device is started, the conveyor belt (or traction chain) begins to operate, and the hopper is fixed on the conveyor belt (or traction chain). As the conveyor belt (or traction chain) moves, the hopper transports materials from one end (feeding section) to the other end (unloading section), achieving continuous and stable transportation of materials. During the conveying process, the hopper scoops up the material from the storage below, and as the conveyor belt or chain lifts it to the top, it flips down around the top wheel and pours the material into the receiving trough. 
3、 Transportation form 
The conveying forms of hopper type belt conveyors are flexible and diverse, including straight, L-shaped, Z-shaped, etc., suitable for material conveying needs in different occasions. 
4、 Application Fields 
Hopper type belt conveyors are widely used in multiple industries, including but not limited to: 
Mining industry: During the mining process, it can be used to transport materials such as ore and coal from the mining area to the processing area, improving production efficiency. 
Metallurgical industry: In the metallurgical production process, it can be used to transport raw materials such as ore and slag, as well as semi-finished products such as steel billets and steel, to achieve automation of the production process. 
Chemical industry: can be used for long-distance, high-capacity transportation of raw materials, semi-finished products, and finished products to meet production needs. 
Construction industry: can be used for conveying building materials to improve construction efficiency. 
Food industry: can be used for conveying materials such as grain, feed, and seeds, ensuring the continuity and stability of food production. 
5、 Maintenance and upkeep 
To ensure the normal operation and extend the service life of the hopper belt conveyor, the following maintenance and upkeep work is required: 
Regular inspection: The wear and tear of components such as conveyor belts (or traction chains), hoppers, and drive devices should be checked regularly to promptly detect and replace damaged parts. 
Cleaning work: Regularly clean the residual materials on the conveyor belt (or traction chain) and hopper to avoid material accumulation and affect the normal operation of the equipment. 
Adjust tension: Adjust the tension of the conveyor belt according to the actual situation to ensure that the conveyor belt always maintains an appropriate tension state during operation. 
Lubrication and maintenance: Regularly lubricate key parts such as drive devices and bearings to reduce wear and extend service life. 
6、 Precautions 
When choosing a hopper type belt conveyor, the shape and size of the hopper, the movement speed, and the size of the drum or sprocket should be selected correctly based on the physical properties and conveying conditions of the material. 
To prevent dust from flying and ensure the safety of the production environment, hopper type belt conveyors are generally equipped with a casing. At the same time, suction ducts and ventilation openings should be installed at the head and bottom to ensure that negative pressure and dust spillage do not occur during unloading and feeding processes. 
An anti reverse device should be installed at the head of the bucket conveyor to prevent equipment damage and material accumulation caused by sudden power interruption. 
In summary, the hopper type belt conveyor plays a crucial role in material transportation in various industries due to its simple structure, smooth operation, easy operation and maintenance, and strong adaptability.