Study On The Safety And Reliability Of Vertical Hoisting Shaft System

Vertical shaft hoisting is a popular manner of hoisting in mine in our country, according to incomplete stat., there are about more than 37,000 vertical shaft hoisting wells, in allusion to the status of the research of vertical shaft hoisting system now, it is not only making senses on theory, but also on guidance of practice to analysis the reliability of the vertical shaft hoisting system.The text first introduces basal information of reliability in order to found the reliability model of the vertical shaft hoisting system. Through the parse of the vertical shaft hoisting system structure and in supervise with theory of reliability, founding the reliability model of the vertical shaft hoisting system, then analyses the model primary, combines with practice and according to the accident data during recent years, finding out weakness tache of the system. In allusion to graveness and variety of the accident of over wind and over down, analyses the basic reason by fault tree, finds out deficiency, in order to change the deficiency, develops the brake device with different resistance, and analyses the mechanics theory of the device, founds its mechanics model.This text also analyses Man-Equipment-Environment influence factors of the vertical shaft hoisting system in general according to the practice. Consulting research production in other departmental system, summarizes the maintenance experience of the vertical shaft hoisting system, discusses the maintenance concepts, maintenance sorts, the method and way of centered reliability maintenance, and the system of maintenance, raises operable instructional principle of maintenance of the vertical shaft hoisting system.At last, this text makes use of above-mentioned theory, combined with the practice instance of the vertical shaft hoisting system of Qinan-mine in Huaibei, analyses the practice reliability problem of vertical shaft hoisting system in general, collects data of fact run system, then analyses and calculates reliability of the system, finds out weakness tache of reliability of the system, raises methods and measures to improve the reliability of the system, and raises referenced opinions of production management of vertical shaft hoisting system of Qinan-mine.