一般的选煤厂中煤含精煤量在10%左右，有的甚至更高。这部分精煤变成电煤烧掉其价格只有精煤的20%左右，造成了资源浪费和效益损失。”王万明告诉记者，在原煤分选过程中，由于煤质和机器性能，导致一部分精煤可能错配到中煤，精煤在中煤中错配达到10%的话，一般就相当于原煤的30%-40%，所以，把中煤里的精煤再次回收，最大限度的提高精煤利用率促使王万明发明了“重介质选煤中煤再选设备。使我国重介质选煤技术取得长足进步。特别是煤炭科学研究总院唐山分院在圆筒形二产品和扫选型三产品旋流器的大型化方面做了大量的工作。改进后的重介质选煤工艺使建厂投资和运行费用都有了大幅度的降低，也使生产管理和分选效率有了明显的改善。与此同时，重介质选煤的辅助设备和耐磨材料的生产技术也取得了长足进步，为我国重介质选煤技术的大规模工业化推广提供了成熟的外部条件。
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.
重介质粉的发展史泰安立人磁性材料有限公司在经济发展中重要的一步，技术的提高，科技含量的增加成为现代市场的主打产品！
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! |
