history of the development of the domestic vertical roller mill

history of the development of the domestic vertical roller mill

In cement production, usually adopts the traditional ball mill as cement raw meal grinding system, however, when the vertical mill, it features a strong production capacity and energy-saving widely admired. Especially after the improved technique of vertical roller mill, compared with a ball mill has incomparable advantage.

The mill can be efficiently integrated complete material crushing, grinding, drying, powder separating and conveying process, integrates many functions, has the advantages of simple process flow, stand-alone big capacity , expected to have a large size, drying capacity, good sealing performance, negative pressure operation, no dust on the finished product quality control, product replacement fast and flexible advantages, therefore, has been widely used in the world, has become the preferred equipment for industrial milling.

The vertical roller mill and its application in our country began in the last century forty's, when white cement factory used vertical grinding mill for raw material . Since fifty, a number of small cement plants began to use the small vertical mill grinding of raw materials, but also for the wet cement mill pulverized coal. At the end of the seventy's, the development of new dry process cement kiln outside the decomposition process, China began to attach importance to vertical mill raw material research and development.

In the early eighty Tianjin Cement Research and Design Institute has developed the TRM series of vertical mill, successfully applied in cement factory 1000t/d new dry process cement production line, production capacity is 80t/h, power consumption of the 15.4kwh/t system. Hefei cement industry design and Research Institute developed HRM series of vertical mill, 1000t/d production line with capacity limitation.

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