telescopic belt conveyor for long distance bulk transport

Expandable belt conveyor can flexibly adjust the length with the moving forward of the working face, and at the same time, it has certain turning ability, which reduces the complexity and safety hazards brought by the connection of multiple equipments. It is an indispensable and important conveying system in the modernized coal mine.

Features of retractable belt conveyor:

1. Automatic retractable structure: the conveyor body is equipped with adjustable body structure, and the length of conveyor belt can be adjusted quickly through electric or hydraulic control system.
2. Turning conveying capacity: In the environment of narrow space and frequent turning of the roadway in the underground, it supports curve conveying at a certain angle (10° to 100°), and flexibly adapts to the non-straight roadway.
3. Modular design: the equipment adopts combined rack structure, which can be flexibly combined, disassembled and expanded according to the transportation demand.
4. Dual-end adaptation: the tail section can be used with scraper transporter or belt transporter, compatible with a variety of operating modes of the synthesized mining face and digging face.
5. Highly integrated: integrated tensioning, driving, transition, deflection correction and other functional units in one, improve the overall operational stability.

Advantages of retractable belt conveyor:

1. Telescopic with mining, efficiency: with the advancement of coal mining or digging, the conveyor can be extended or shortened synchronously, reducing the downtime caused by frequent relocation, and improving the efficiency of continuous operation.
2. Reduce equipment connection points: By realizing curve conveyor, the number of intermediate transfer equipment is greatly reduced, which reduces the probability of accidents and equipment investment.
3. Adapt to complex terrain: it can cope with irregular roadway layout, applicable to complex working conditions, and enhance the flexibility of underground operation.
4. Saving manpower and cost: high degree of automation, can realize remote control and centralized monitoring, reducing the intensity of manual operation and management costs.
5. High capacity and strong adaptability: it can carry high load and long-distance conveying tasks, applicable to high-yield and high-efficiency coal mines.

Working principle of retractable belt conveyor:

1. Mainly consists of driving device, conveyor belt, roller, carrier roller, tensioning device, telescopic mechanism and control system. The core lies in the telescopic mechanism, which is usually supported by the rail-type or guide bar structure of the central section of the conveyor, with the electric propulsion system (or hydraulic system) for the expansion of the body.
2. The drive device provides power to drive the driving roller operation, through the friction traction conveyor belt forward. The material falls from the working surface to the running conveyor belt, and is transported backward with the movement of the belt body to the reproduction point, and is transferred to the next level of equipment to continue transportation.
3. In the curve section, set adjustable roller group or curve section frame, so that the conveyor belt in maintaining the tension state of smooth transition turn, to ensure that the material conveying is not interrupted, do not spill.

Application fields of retractable belt conveyor:

1. Comprehensive mining face under the coal mine: used for continuous transfer of raw coal between the down channel and transportation aisle.
2. Roadway tunneling transportation: supporting the use of tunneling machine, to realize the synchronous clearing of materials in the process of tunneling.
3. High-yield and high-efficiency coal mine: to meet the demand of large capacity, long distance and high frequency transportation, it is the key component of automated coal mining system.
4. Complex working conditions in underground areas: such as frequent turning, space constraints or the need to extend the working surface of the scene.
5. Other mines or tunneling projects: such as metal mines, non-metallic mines, subway construction, etc. can also use this equipment for intelligent material transfer.