过热蒸汽气流磨粉碎实验研究_王雅萍.pdf

2 3 3 V ol. 23 N o. 3 2008 9 Journal o f Southw est U n iversity of Sc ience and T echno logy Sep. 2008 1 2 1 ( 1. 621010; 2. 621010) , , , 5 ; , , , ; , , ; TQ 172. 6+ 3 A 1671- 8755 ( 200 8) 0 3- 00 62 - 05 Experimental Studies on the JetM ill with Superheated Steam 1 2 1 W ANG Y a-p ing , CHEN H a-i yan , ZHU M u- cheng ( 1. School of M anuf acturing Science and Eng ineering, Southw est University of Science and Technology, M ianyang 621010, S ichuan, China; 2. School of Environm ent and Resources, Southwest University of Science and Technology, M ianyang 621010, S ichuan, China) Abstract: T he jet m ill w ith superheated steam is prov ided w ith low er- energy con sum ption and h igher com- m inution force than that of the airm edium. Its classificat ion effectsw ere analyzed and tested. T he experi- m ental results show th at the c lassification effects of the jet m il,l inc lud ing the particle size and its outputs, can be contro lled by ad ju sting the param eters o f the classifier rotate sp eed, entrance pressure, steam flux, secondary w ind flux and input the raw m ateria l cap ac ity, etc. T he classifier rotate speed has a reciprocal proportion to the p art icle size. T he higher the entrance pressure o f the steam nozzle is, the finer the p arti- cle size is and the narrow er the particle size d