In recent years, the country's infrastructure projects in an endless stream, the huge demand for cement to promote the rapid development of cement industry. Cement vertical roller mill for cement grinding equipment, especially energy-saving emission reduction of vertical roller mill has at home and abroad has been successfully applied, used in cement industry output of up to 150 million tons of high, and can meet the requirements of users on the yield and fineness of various. Moreover, it is well known that cement is a resource and energy consumption industry, energy saving and emission reduction is a new focus of cement industry development, we must pay attention to. So, with energy-saving emission reduction as the idea and design of GRM energy saving and emission reduction cement vertical roller mill, is China's cement industry development in the future support. The introduction of a high yield and energy saving equipment for cement grinding. Combined with many years of mill design and manufacturing experience and the European advanced technology, and conducted a comprehensive market demand survey after many years of design and a large grinding equipment. It uses a reasonable and reliable structure design, with the advanced process, set drying, grinding, selection of powder, grading conveyor in one, the main technical and economic indicators are up to international advanced level. The energy saving and emission reduction of the cement vertical roller mill is mainly in the following aspects: First, the machine uses is the principle of layer grinding material, grinding material not only has high efficiency, and consumption than that of ball mill low 20% - 30%, more energy saving. Second, the machine has no direct contact between the metal parts, wearing parts wear small, high metal utilization; Third, the machine is mainly wearing parts of grinding roller and grinding ring, can be turned over, one side wear can also be replaced, reduce the maintenance costs of replacement cycle; Fourth, the cement vertical roller mill is set crushing, drying, grinding, powder, conveying equipment for one, do not need other drying machine, powder selecting machine, hoist etc., the process is simplified but also reduce the cost of the investment; Fifth, and the structure of the machine is simple, the layout is compact, can be arranged, the construction area is about 70% of the ball mill system, the area is small, the construction cost is low. Sixth, the cement vertical mill in grinding roller and the grinding disc is not in direct contact, no metal impact sound, noise is small. In addition, it uses whole sealing system, for the system to operate under negative pressure, no dust, the environment clean and.