China is a coal-producing country; coal is the basic fuel for electricity production. In recent years, the steady development of China’s energy industry, as well as the rapid development of the power industry, has brought a sharp increase of the coal ash emissions, annual emissions by coal-fired thermal power plant coal ash volume is increasing year by year, it has exerted enormous pressure on the construction of China’s national economy and the ecological environment.
With the seriously environmental problems’ increasing, improve the environment as well as to accelerate the recycling of resources has become the top priority of coal ash resources development and utilization imperative. The comprehensive utilization of coal ash requires the use of advanced technology, reasonable process, reliable equipment, reduce production costs to ensure product quality, and be fit for the national standards.
Coal ash also contains useful components, such as carbon, iron, aluminum, and hollow microspheres etc., first recycles and extracts useful components, and then high fly prerequisite for the production of building materials, is the favorable way of eliminating the fly ash hazard. At present, some milling industry machinery companies heavy launched the high pressure milling machine, like ball mill, raymond mill and so on, the milling fineness can be controlled in the fineness of 500 mesh (25 microns) -2500 mesh (5 micron). For coal ash mill is to produce cement, fly ash bricks, and fly ash aerated concrete and other construction materials;
It can also be used as an agricultural fertilizer and soil conditioner; recycling the industrial raw materials or as the environmental materials; the fly ash as the main raw material, mixed with a small amount of binder and solid fuel, have been mixed into a ball, through the high temperature roasting, it became an artificial lightweight aggregate.
Adopt efficient, environmentally friendly milling machine will bring a good result to fly ash production and comprehensive utilization, it not only can either alleviate the lack and shortage of resources, and also can solve the problem of environmental pollution.
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