Belt conveyor is the most ideal high-efficiency continuous transportation equipment for coal mines. Compared with other transportation equipment (such as locomotives), belt conveyor has the advantages of long transport distance, large transport volume, continuous transport, etc., and reliable operation, easy automation and centralized control. In particular, high-yield and high-efficiency mines, belt conveyors have become key equipment for coal mining machinery and electronic integration technology and equipment. The main feature of the belt conveyor is that the airframe can be easily retracted. It is provided with a storage bin, the tail can be extended or shortened along with the coal mining work surface, the structure is compact, and can be laid directly on the floor of the roadway without a foundation. Lightweight and easy to disassemble. When the conveying capacity and the distance are large, the intermediate drive device can be equipped to meet the requirements. According to the requirements of the conveying technology, it can be transported on a single machine, or multiple units can be used to synthesize a horizontal or inclined transport system to transport the materials.
1. The history of belt conveyor
China's ancient high-revolver trucks and water-supply overturns are the prototypes of modern bucket elevators and scraper conveyors; in the 17th century, the use of aerial ropeway to transport bulk materials began; in the middle of the 19th century, various modern structures were transported. Machines have emerged one after another. In 1868, belt conveyors appeared in Britain; in 1887, screw conveyors appeared in the United States; in 1905, steel belt conveyors appeared in Switzerland; in 1906, inertial conveyors appeared in England and Germany. Since then, the conveyor has been affected by technological advances in machinery manufacturing, electrical machinery, chemical engineering, and metallurgical industries. It has been continuously improved, gradually completing the internal transportation of the workshop, and has developed to complete the material handling within the enterprise, between enterprises, and even between cities, becoming a material. An integral part of the mechanization and automation of the handling system.
2. The advantages of belt conveyor
The belt conveyor is mainly composed of two end rollers and a closed conveyor belt tightly fitted on it. Its main feature is that the fuselage can be easily retractable, with a storage bin, the tail can be extended or shortened along with the coal mining face, compact structure, can be laid directly on the floor of the lane without a foundation, and the rack is lightweight , Demolition is very convenient.
When the conveying capacity and the distance are large, the intermediate drive device can be equipped to meet the requirements. According to the requirements of the conveying technology, it can be transported by a single machine, or a multi-unit combined horizontal or inclined transport system can be used to transport the materials. The drum that drives the conveyor belt is called the drive drum (drive drum); the only other one is the drum that changes the direction of movement of the conveyor belt. The drive roller is driven by a motor via a speed reducer, and the conveyor belt is driven by the friction between the drive roller and the conveyor belt. Drive drums are generally mounted at the discharge end to increase traction and facilitate drag. The material is fed from the feeding end and lands on the rotating conveyor belt, and is driven by the conveyor belt friction to drive the discharge end of the bag to be discharged.
Belt conveyors are mainly used for material transportation in coal mines, brick making and other industries. Compared with other transportation equipment (such as locomotives), belt conveyors have the advantages of long transport distance, large transport volume, continuous transport, etc., and reliable operation, and can realize automatic control. , save manpower and material resources, is the first choice for conveyor equipment
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