The Research On Structural Parameter Of New Type Macrogranule Magnetic Separator

In the field of new technics of dense medium coal preperation, in order to solve the new demand from new technics to the magnetic seperation system and to develop a new type of macrogranule magnetic seperator to meet the need of reclaim of the very small powder efficiently and of blockage of macrogranule in the processing of seperation.'The Research on Structural Parameter of New Type Macrogranule Magnetic Seperator' is carried out in this dissertation. It has very important meaning in exaltation the depending of coal preperation equipment and shortens the distance of technique margin of the equipment.Though the analysis of present condition in research of magnetic seperation field in the world, pointing the importance of magnetic seperation reclaim technics in dense medium coal preperation and the further theories research direction in the field. Also pointing the really basic path that raises the product design quantity that is carrying on the quantitative analysis and imitate to the magnetic system of magnetic seperator using by the contemporary knowledge terrace (computational electromagnetics arithmetic and it's tools). First using this method (CEM) in designing of magnetic system in the field of coal preperation and acquiring the success of the first step. Stuied the relation between of the composing of magnetite powder and it's recovery efficiency, got the conclution that the most difficult composing is under 5 pm. Using by the optimize method of magnetic system designing, raised the magnetic induction intension on the surface of magnetic system and the depth of the magnetic force. The sepration experiments of the sample machine express that the reclaim of the tiny powder turns high, totle reclaim of the magnetite powder can amount to 99.8 percents. Carried on the research towards some factor when macrogranule getting through the seperation space. Inquiried the relation between the type of the magnetic system, seperation efficiency and seperation space. Deduced the mathmatical formula of the rotate speed. Choosed the new structure of driving system and the type of feedmine. Designed the new type of the unload mineral device. Through the sampel mashine experiment, draw the conclusion that the passing capability of the macrogranuale raised, the blockage didn't existed, so the dependability of the machine got raised.This research built the experimet basis and gave the reliable theory in the further designing of the New Type Macrogranule Magnetic Seperator and had very important meaning in giving technical prograss of the dense medium coal preperation magnetic seperation field.