Abstract: The grinding process is one of the most fundamental in the production of building materials. The analysis of modern engineering and manufacturing technology of fine materials showed that crushers of cage mill with the implementation of internal classification of crushed materials have considerable prospects. In this regard, it is important to define the structural and technological parameters of cage mill units. In this study, we define the productivity of cage mills including grinding chamber with different cross-sections. Both the design parameters and the properties of the crushed material such as compressive strength, Youngs modulus and others influence the productivity. In addition, the rotation frequency influences productivity too. It is generally known that the number of collisions of the particles of the material in the grinding chamber equals to the number of rows of impact elements, i.e., 4-5. Time which grinding particles spend in the chamber is 0.01-0.1 sec in average. To improve the efficiency of grinding in the cage mills it is necessary to increased residence time in the grinding chamber and the number of particle collisions with the working surface of the impact element. Various cross-section of the chamber leads to a change in grinding load on the grinding material which take the cyclical nature, the time of finding the particle material in the grinding chamber increases as well as the number of interactions of the material with impact elements which lead to improving the efficiency of a cage mill. A comparative analysis of the traditional grinding chamber of cage mill and grinding chamber with various cross-sections has been made. On the basis of theoretical and experimental data an advantage of the proposed cage mills with grinding chamber has been revealed.
Igor Alexandrovich Semikopenko, Sergey Vladimirovich Vyalykh and Alexandr Alexandrovich Zhukov, 2014. Determination of Structural and Technological Parameters of the Cage Mills with Different Cross-Sections Grinding Chamber. Research Journal of Applied Sciences, 9: 843-848.