2 Construction and Maintenance of Belt Conveyors for Coal and Bulk Material Handling Plants www.practicalmaintenance.net Content Chapter Title Page No. 1 Need for Bulk Material Handling Plants with Conveyors 3 2 Characteristics of Bulk Materials 4 3 Mechanical Components in a Belt Conveyor 11 4 Belts 15 5 Belt Standards 43
Belt conveyors can be used to transport products in a straight line or through changes in elevation or direction. For conveying Bulk Materials like Grains, Ore, Coal, Sand etc., over gentle slopes or gentle curvatures, a troughed belt conveyor is used.
Keeping the belts running in the center of the suspended conveyors is a continuous challenge. Martin designed a special suspension bracket to allow installation on the suspended conveyors. Units are built with bronze bearings to avoid problems with static electricity in the underground coal mine.
For optimal quantity measurement of the coal being conveyed to the power plant or to the individual boilers, a continuous flow of material must be ensured. Throughput measurement on the conveyor belts accurately determines the amount of coal transported.
18.104.22.168 Belt Conveyor. Belt conveyor is necessary in the production line of gravel and construction waste, and is mainly used to connect the broken equipment of different levels, sand production facilities, and screening equipment. It is also widely used in cement, mining, metallurgy, chemical, foundry, and building materials industries.
Considering coal with bulk density defined by Fig. 2 and assuming, for example, a depth of coal on the belt h = 0.5 m, a belt speed V = 5 m/s, idler spacing = 1.5 m and the sag ratio K s = 2%, then the acceleration is a v = 6.6 m/s 2. Assuming, also, that the bulk density is ρ = 840 kg/m 3, then using Eq.
The majority of industrial fires which begin on or around conveyor systems occur as a result of ignited coal dust in underground mining operations. But while the fire risks of the fossil fuel industry are well-known and documented, fires involving belt conveyors or other material handling systems are far from restricted to this sphere of .