The Design And Optimization Of 6m Disc Pelletizer Machine Key Parts Based On Finite Element Analysis

Disc pelletizer pellet production process is an important device, its work load is large, complex and working conditions is harsh; at the same time, a smooth and efficient working disc pelletizer pellet production directly affect the quality and yield.Currently, the design and manufacture of domestic disc pelletizer mainly with reference to foreign products, there is no mature theory of computation and specification design. In this case, pelletizer design often used blindly increases the size of parts ways to meet their needs of their work, resulting in increased weight of the equipment, high manufacturing costs, but also work smoothly unresolved issues.Therefore, the disc pelletizer targeted optimization of the design process has become its main problems.The problem with 6m disc pelletizer as an object, select the disk spindle body and affect the quality of the two main parts of the machine, in load calculations,parametric modeling, and the establishment of the constraints imposed on the basis of the load, using ANSYS system the disc body and spindle the two main parts of the analysis and design optimization:1. 6m disc pelletizer machine design, the parametric model of the spindle and the head body, extract the design parameters for the analysis and optimization of the foundation;2. Spindle and disk body modal analysis to find out the spindle and the head body vibration modes, reasonable and to verify the validity of part design;3. On the basis of a detailed analysis of the distribution of mineral powder on the body of the pelletizer disk spindle load and a detailed calculation;4. In ANSYS, the disc spindle body and a static analysis, master stress and strain of two parts;5. Using ANSYS system tray spindle body and structural optimization analysis and verify the results of the analysis.Through a lot of calculation and analysis, this study reached the following conclusions:1. Analysis of the results showed that load, load distribution disc pelletizer complex, harsh working conditions, the working device to cause a great impact.2. Modal Analysis of The disc body and spindle results indicate that low-level vibration frequencies of the two key components, its operating frequency difference between the larger, will not resonate, reasonable design.3. Statics plate body and the spindle analysis showed that the maximum stressplate body is 34.6MPa, far less than the allowable stress. Both were the largest displacement 1.772 mm and 0.46 mm, meet the requirements. Analysis also showed that the strength of the two key components of redundancy greater, greater optimization of space.4. The minimum volume optimization goal to optimize the allowable stress constraints, respectively Sub-Problem algorithm and multiplier algorithm, the plate body and spindle were optimized. By optimizing the design, the quality of the disc body reduced 61%; reduce the mass of the spindle 19 percent. Referring to the optimized design variables were re-modeled and analyzed to verify the reliability of the results optimization.Research on this topic to the actual working conditions, based on a more comprehensive and objective analysis, a partial solution to 6m disc pelletizer design process ambiguity, to find the cause of elevated equipment manufacturing costs, but also improve the stability of the work equipment provides a technical basis, the results with a strong reference value to the design and manufacture of equipment.