A coal mill is the important auxiliary equipment for coal-powder furnace. It has three methods to crush the coal lumps and to grind them into powders, that is, crushing, impacting and grinding.Coal mill is used to grind, pulverize and dry coal before the coal is transmitted the boiler. The coal is fed into the coal mill via an inlet pipe so that the coal mill can pulverize the coal into particles.
As the mill rotates, steel balls work to grind the coal. The mill rotates approximately once every couple of seconds.The grinding system uses either 'open circuit' or 'closed circuit'. In an open circuit system, the feed rate of coal is adjusted to achieve the desired fineness of the product. In a closed circuit system, coarse particles are separated from the finer ones and sent back for further grinding. When final products reach the fineness standard, they are discharged out of the mill.
Location:Saham, Oman Material:Limestone Input Size:Below 720mm Output Size:0-5mm, 5-10mm, 10-20mm, (Oman standard) Capacity:300t/h
Location:Russia Material:Plagiogranite Input Size:Below 700mm Output Size:0-5mm, 40-70mm (0-5mm, 5-10mm, 10-20mm) Capacity:300-350t/h
Location:Mecca Material:Granite Input Size:Below 1000mm Output Size:0-10mm, 10-13mm, 13-20mm, 20-25mm Capacity:400-500TPH (12 hours per day)