Overview
Coal, a fossil fuel, is the largest source of energy for the generation of electricity worldwide, as well as one of the largest worldwide anthropogenic sources of carbon dioxide releases. Gross carbon dioxide emissions from coal usage are slightly more than those from petroleum and about double the amount from natural gas.[4] Coal is extracted from the ground by mining, either underground by shaft mining through the seams or in open pits.

Process
Technological advancements have made coal washery today more productive than it has ever been. To keep up with technology and to extract coal as efficiently as possible modern mining personnel must be highly skilled and well trained in the use of complex, state-of-the-art instruments and equipment. Many jobs require four-year university degrees. Computer knowledge has also become greatly valued within the industry as most of the machines and safety monitors are computerized.

Mining process machines
Since the 1980s, SBM has begun to absorb technical from abroad and combined with our own production technology and apply to stone mining processing machinery equipments. With decades of developments, we have obtained the numerous breakthroughs and scored great achievements. Now, SBM is among the world first-class level of mining process equipment.
Our coal mining process machines contain crushing machine, screening and transmission and grinding machine. Whatever you want stones coal and ores to be crushed or grinded, or you want construction stone, artificially sand and industrial grinding powder, always have suited to your machine that you want.
Our coal mining machinery can almost crush and grind different hard minerals, they widely use for gold mining process, coal mining process, iron mining process, copper mining process, bauxite mining process, nickel mining processing, silver mining process, sand mining process and so on.