DETERMINING THE GRIP ANGLE IN A GRANULATOR WITH A FLAT MATRIX

作者：Chlopek Michal^*; Dzik Tomasz; Hryniewicz Marek

来源：Maintenance and Reliability, 2014, (2): 337-340.

• pressure granulation
• composite fuels
• grip angle
• external and internal friction coefficient

The article addresses the new concept of determining the grip angle in a roll - a flat matrix working arrangement. It was verified experimentally with the exemplary use of composite fuels. For this purpose, a methodology has been developed and the external and internal friction coefficients for several fuel blends have been determined. Knowing them enables one to determine the grip angle which has a significant influence on the efficiency of the granulator. Then, pressure granulation tests with selected blends were carried out. The test results and the calculations are presented in the article. The comparison of the experimental grip angle and the one determined on the basis of a theoretical equation testifies to the correspondence between the theory and the actual physical situation. The determined friction coefficients also determine the selection of an adequate diameter and width of the roller as well as the shape of its working surface. It is of essential importance for ensuring the correct operation of a press with a flat matrix.

• 出版日期2014