Underground Mine Hoist Transport System Reliability And Its Influencing Factors,

With the rapid development of modern industry, the demand for nonferrous metals has increased significantly. In recent years the exploitation of vast nonferrous metals mines is rising continuously, and some even are beyond the scope of designed product capacity. So an effective way to control the stable yield of mines is choosing reasonably and managing scientifically mines' transport system. Adopting planar way of track transport, mercury-gold mine produced 182,123 tons ore from August 2005 to June 2006. The purpose and significance of this paper is to describe the ability of the elevation and transport of the existing equipment of Mercury-gold mine, whether it can adapt to the requirements of actual production, and how the transport system is organized and managed to ensure normal production and mine.In this paper, using computer simulation technology, the mercury-gold mine data has been collected from August 2005 to June 2006. Basing on large number of field data and production data suffered diversified factors, We utilize reliability theory of probability and statistics methods to determine simulation parameters and model random simulative calculating stencil of elevation and transport system in Excel. After calculating stencil checking, we gain the probability of each malfunction factors of the mercury-gold mine, then use malfunction-tree to calculate system reliability. From the result we bring forward an optimal production and organization scheme to ensure the stable yield of the mercury-gold mine to accomplish successfully the production tasks that the company issues. The investigative conclusion of the paper is as follows:1, dealed with the mass production data by field-testing, querying and collecting the elevation and transport system, we use reliability research and probability of statistics methods to analysis the distribution of system parameters and verify peak and deflection. It validates that elevation and transport system parameters of mercury-gold mine accord with negative exponential distribution, and we also estimate theirs mean and variance.Using Excel to do Monte Carlo simulation analyze to gain comprehensive decision-making information. In the practical application study of Monte Carlo simulation method, this paper investigates deeply how Excel data analysis function and so on combines with Monte Carlo simulation analysis, and discusses how it implements Monte Carlo simulation analysis using Excel. It is using familiar, easy-operating conventional software to accomplish simulation analyze of work process.At the same time, this paper also investigates how to found random simulation calculating model using each functions of Excel to improve veracity of simulation calculation. In this paper, with the random simulation calculating model designed by my own adopted and mutual nesting of Excel functions used, it calculates automatically parameter and guide line of elevation and transport system. And combining with minimal-effort method and malfunction-tree key importance theory to disclose weakness of system and find way of improving credibility of system, it offers gist for system ameliorated and equipment remodeled. Finally, it improves the efficiency of underground mines' in being elevation and transport system to create economic benefit for which using this system.This study is on the basis of the production of actual mercury-gold mine, therefore it has great significance for the future production and management.