Study On Combined Hoist Technology Of Large Rolling Mill Housing In Restricted Area

Strip rolling mill is key instrument of metal rolling processing line. Installing quality of rolling machine influnce exteirior and interior quality of strip product directly. As core block of a rolling mill, large rolling mill housing is of high processing accuracy and heavy weight, and its installation is of characters of complicated technology, heavy unit instrument, high installation accuracy, long constuction period. Mill housing is not only installing carrier of other presicion parts of rolling mill, but also installing criterion of other instruments on the rolling line. Installing period and quality of mill housing influnce instrument installation along the processing line deeply and its installing control is key point of rolling mill installing. Start of rolling mill housing hoist symblize finishing of civil work, struction construction of rolling processing line and beginning of instrucment installing.This article discuss and study key factors involved in mill housing hoisting in restricted area on the background of Large rolling machine housing hoisting of Pangang Xichang 2050 mm Hot rolling Project. According to practical situation, integrate and utilize the most of the available resources, reduce investment and explore combined hoist technology of large rolling mill housing in restricted area and guide the whole installing work.This article elaborate technical preparation, hoist model design, choose of hoist cable and checking calculation, hoist simulation, hoist execution and mill housing fine adjustment before large rolling mill housing hoisting and introduce key technology points of large rolling mill housing during installation. It expand the study of combined hoist model in restricted area to make it to be applicable to more and give referencs to similar projects.