Coal is the most abundant fossil fuel on the planet, and widely used as the source of energy in thermal power stations.It is a relatively cheap fuel, with some of the largest deposits in regions that are stable politically, such as China, India and the United States.
A crusher is a machine designed to reduce large rocks into smaller rocks, gravel, or rock dust.. Crushers may be used to reduce the size, or change the form, of waste materials so they can be more easily disposed of or recycled, or to reduce the size of a solid mix of raw materials (as in rock ore), so that pieces of different composition can be differentiated.
1. Depreciation is the systematic allocation of the depreciable amount of an asset over its useful life. The depreciable amount of an asset is the cost of an asset or other amount substituted for cost, less its residual value. The useful life of an asset is the period over which an asset is expected ...
I need some advice, Mobile Jaw or Impact crusher. We recycle concrete/bricks etc for about 6 years, We ran Komatsu 380 Jaw crushers and it worked well I sold this unit 12months ago.I'm Looking to start crushing again and a few blokes have been saying mobile impact crushers are the go in stead of the jaw,I would like to buy a machine around 30 ton mark any coments.