| The Heavy Machine Company of Shenyang introduced the technology of vertical roller mill from the Uncommon Company of Germany. In order to satisfy the producing line of cement, it also introduced the technology that consists of the whole design of cement vertical roller mill for raw and processed materials, manufacture and inspection, and the whole laboratory equipment for mill's tests choosing. On the basis of assimilate the advanced technology, using ANSYS to do the Finite Element Analysis on vertical roller mill, and using C++ Builder to exploit the software for calculating and designing the vertical roller mill by Computer Assistants Design. It is meaningful to replace the foreign congener products.The pulverizer is the machine that grinds the materials into comminution by extrusion and friction between the two working surfaces and medium. The main production includes:(1) Slicing mill: it not only fits to grind the materials, but also fits to the materials with high aquiferous and tenacity.(2) Taper powder mill: it fits to the dry and wettest grind of wheat, coarse food grain and legume. (3) Opposite rollers powder mill: according to the different objects of using, it can also consist of small, middle and large pulverizers.(4) Vertical roller mill: it also can be called the vertical mill. There are more than ten configurations, such as Loeshemill and so on. The materials are put into the fixed millstones. The roller mill grinds the materials into comminution for several rollers' fast rolling, with the great comminuting efficiency. It also has the power of pulverous milling and drying because of milling for winding sweeping. Its default is that the abrasion of the mill-roller and the millstones is serious. And the longevity of service is short. It also have to be manufactured by the materials which is high mill-resistant. And it is perplexing to inspect, repair and replace. The series productions of roller-mill have been exploited by……(5) Sphere mill: there are many types of the sphere mill, with widely application. According to the different grinding medium, it consists of sphere mill, stick mill, gravel mill, self-mill (with no medium) and semi-self mill (few medium).(6) Vibration mill: the materials are impacted, rubbed, cut and comminuted by the strongly vibrancy with high frequency.(7) Medium mix rounded mill: it was considered as the comminuting equipment that has a good perspective.This paper will do some research on vertical roller mill, MLS4531A, which is exploited by the Heavy Machine Company of Shenyang. The whole research contents and fruits as follows:(1) Vertical roller mill, MLS4531A, is main made up of the main electromotor, the main speed reducing machine, millstones, the group of grind rollers, rack, the set of stretching and straining, separator, three strobes, the equipment of fixing and inspecting-repairing, transmission equipment assistant and the sustained torsion of the hermetic air tubes. It has the higher comminuting efficiency. The technologic flow can be shorted. And electricity rate is low. The materials are grinded with the limited pressure. Both the grind rollers and millstones directly participate in the grinding. The components are made up of several discretenesses and replaced easily. The grinding components are manufactured by the materials which is high mill-resistant. The scaleboards of the grind rollers and millstones can be turned to the outside of the millstones by hydraulic pressure equipment, inspecting, repairing and replacing. The scaleboards of the grind rollers can also be used by turning off, which prolongs the longevity of service of the grinding components.(2) The calculating design for vertical roller mill, MLS4531A. The calculating design of the vertical roller mill includes: the sizes of grind rollers (the diameter and width of the grind rollers), the granularity of bestowing materials, the rotate speed of the millstones, the rolling pressure of the single roller, the power's calculating of the main electromotor. Th...
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