Coal conveyor belt

Coal conveyor belt (also known as coal conveyor belt) is the core backbone equipment of coal transportation systems in industries such as thermal power generation, coal mining, coal chemical industry, metallurgy, etc. It uses flame-retardant conveyor belts as traction and load-bearing components to achieve continuous, long-distance, high-volume, and low-energy transportation of bulk materials such as raw coal and gangue. It is the "industrial artery" in the coal supply chain.

1、 Core working principle
The equipment is powered by a drum, which is driven to rotate by a motor and a reduction mechanism. The flame retardant conveyor belt is continuously operated by the friction between the drum and the conveyor belt; Cooperate with the groove type roller group to support the conveyor belt and materials, and the tensioning device stabilizes the tension of the conveyor belt to avoid slipping and deviation; Ultimately, the raw coal is transported smoothly and continuously from the receiving end to the unloading end, and can be adapted to various conveying paths such as horizontal, inclined, turning, and vertical lifting.

2、 Core structure composition
1. Carrying and traction unit: Flame retardant and anti-static conveyor belt (mandatory standard for coal transportation scenarios), divided into three categories: EP polyester canvas core, NN nylon core, and steel wire rope core, with characteristics such as wear resistance, tear resistance, flame retardancy, cold/heat resistance, etc. It is the core of material carrying and power transmission.
2. Drive unit: Drive motor+reducer+hydraulic coupler/permanent magnet synchronous drive system, which can achieve soft start, overload protection, adapt to heavy-duty start stop and continuous operation conditions. Explosion proof models can be used in high-risk scenarios such as coal mines underground.
3. Drum unit: includes a transmission drum (power transmission core), a reversing drum (adjusting the running direction of the conveyor belt), and a surface coating treatment to increase friction and reduce the risk of slipping.
4. Roller support unit: groove type load-bearing roller, buffer roller (shock-absorbing and impact resistant at the receiving end), self-aligning roller (anti deviation), return flat roller, using labyrinth seal, dustproof and waterproof, with a service life of not less than 30000 hours.
5. Tensioning unit: There are three main types: heavy hammer, hydraulic, and spiral. Its core function is to maintain a constant tension on the conveyor belt, ensure the friction between the drum and the conveyor belt, and avoid belt relaxation, slippage, and joint cracking.
6. Auxiliary units: Head/tail cleaner (to remove coal sticking on the conveyor belt), guide chute (to prevent coal dust scattering), unloading device (plow unloader, unloading trolley), frame and wharf structure.
7. Safety protection unit: The safety regulations mandate the standard configuration of a bidirectional rope emergency stop switch, two-stage deviation protection, slip/speed protection, longitudinal tear protection, coal blockage protection, drum over temperature/smoke protection, and emergency stop locking device, achieving full working condition safety protection.

3、 Mainstream models and core technical parameters
Mainstream classification and adaptation scenarios

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Core selection technical parameters (mainstream universal models)

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4、 Core advantages of the product
1. High conveying efficiency and strong adaptability to working conditions: It can operate continuously for 24 hours without interruption, with a single machine conveying distance of several kilometers. It is suitable for various materials such as bituminous coal, anthracite coal, lignite, gangue, etc., and is not afraid of high moisture and high ash inferior coal types.
2. Low operating costs and convenient maintenance: The energy consumption per ton kilometer is much lower than that of vehicles, scraper conveyors, and other methods; Less vulnerable parts, high standardization of components such as rollers and drums, convenient replacement and maintenance, and low lifecycle costs.
3. Safe and environmentally friendly, with a high degree of intelligence: Fully enclosed models can achieve no dust or coal scattering, meeting environmental emission standards; Equipped with intelligent inspection system, AI visual monitoring, and remote control functions, it can achieve early warning and automatic shutdown of hidden dangers such as deviation, tearing, and overheating, greatly reducing the pressure of manual inspection.
4. Flexible layout and strong universality: It can adapt to various conveying paths such as horizontal, inclined, turning, and multi-stage combination, and can achieve multi-point feeding and unloading, seamlessly connecting the entire process of coal unloading, crushing, warehousing, and coal feeding.

5、 Applicable scenarios
Core scenarios: coal transportation system in thermal power plants, raw coal transportation in open-pit coal mines/underground coal mines, raw material transportation in coal chemical projects, coal transportation in metallurgical sintering plants, and coal loading and unloading and transportation at ports and docks.
Extended scenario: Long distance continuous transportation of scattered materials such as mining ores, sand and gravel aggregates, building materials, and grains.