General coal washery coal containing coal amount in 10% or so, and some even higher. This part of coal into the coal burned about its price only concentrate 20%, resulting in waste of resources and loss of benefit." Wang Wanming told reporters, in raw coal separation process, the quality and the performance of the machine, resulting in some coal may mismatch to coal, coal in the coal mismatch reached 10%, the general is equivalent to the 30%-40% of raw coal, so the coal in the coal, recycling, the maximum improve coal utilization prompted Wang Wanming invented the "heavy medium coal preparation coal select equipment. The heavy medium coal preparation technology in China has made great progress. Especially the large-scale coal science research institute Tangshan branch in a cylindrical two products and sweeping type three product cyclone has done a lot of work. Heavy medium coal preparation process improved the investment and operation cost can be greatly reduced, but also make the production management and the separation efficiency was improved obviously. At the same time, the heavy medium coal preparation auxiliary equipment and the production of wear-resistant materials technology has made considerable progress, provide mature external conditions for large-scale industrialized popularization of heavy medium coal preparation technology in china.
Tai'an history of heavy medium powder made people magnetic material limited company major in economic development step, improvement of technology, the increase of the content of science and technology become the modern market's flagship product!