DISCUSS AND STUDY ON THE INFLUENCE FACTORS OF THE SERVICE LIFE FOR ROTARY KILNS HEATED IN THE EXTERIOR

According to the technology and practice of roasting molybdenum concentrates by the rotary kiln heated in the exterior,the influence factors of the service life for rotary kiln was analysed,so as to extend the service life of the rotary kiln,reduce the cost of production of enterprise and improve the economy benefit.