4、测量驱动电路滑片-42-ThedesignofvaneautomaticdetectionandcontrolsystemMajor:Mechanical Manufacturing and AutomationStudent:Supervisor:AbstractIn national economic construction, cement is the indispensable basis of raw materials. As an important basic industry, cement industry development has become a nati
5、onal and social development level and comprehensive strength is important measure index. The economy of our country is in the period of rapid development, infrastructure construction has become the main mode of domestic investment. Therefore, the cement as the main raw materialalso in the expansi
6、on phase.In the process of cement production, most of the raw material to be crushed, such as limestone, clay, iron ore, coal and other. Limestone is the productionof cement dosage is the biggest raw material, after mining of large size, high hardness, therefore limestone crusher in cement plant
7、material crushing occupies a fairly important position. Crushing process than grinding process is economical and convenient, reasonable selection of crushing equipment is very important, the material into the grinding,