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Coal mine safety funds are divided into employee's safety input funds, safety technology funds, and safety management funds. It is great significance for the realization of the optimal safety input orientation and the selection of safety projects to scientifically allot each safety funds. This paper uses co integration test and Granger causality test to explore the long-term steady relationship between...
This study will analyze the refined safety management of Chinese coal enterprise by means of the high-level interviews, case analysis and investigation. And it will also use real evidence and case studies to verify the effectiveness of contents and systems of the enterprises' refined safety management. This work will help the enterprises shake off backwardness and low efficiency of safety management...
In order to take effective dust removal measurement of transfer point of a coal preparation plant, it is necessary to put forward the optimal dust removal scheme. Production workmanship and dust pollution mechanism of the transfer point in a typical coal preparation plant has been analyzed. Based on the analyses, two feasible dust removal schemes of transfer point, namely the guide-chute dust removal...
The sense of mining progress was analyzed. The model of production function considering mining technical progress and mining condition of coal bed was proposed. The growth equation and the production function were deduced when the two factors were considered. The research indicates that mining technical progress has a great effect on the output of mine enterprise when mining technology develops promptly...
In the process of coal mine construction, it is significant that how to identify the risk factors and to take measures to prevent the occurrence of safety accidents for the mine investment unit to speed up the construction of the new mines and exploit the coal energy rationally. With the ability of structural equation model that processes the variables and their relationship, this article applied...
A method based on independent component analysis (ICA) and Kalman predictor is proposed to predict the methane and carbon monoxide in coal mine. Two disturbances of hydrogen and ethane are mixed into the gas samples to simulate the real world situation Features extracted with ICA are respectively predicted by Kalman filter step by step to 476 points, compared with BP neural network, the mean square...
The ventilation system is the basis to control the hazards in coal mine laneway. High reliability ventilation system can continuously convey fresh air into laneway , dilute the noxious gas, reduce disaster and ensure the mining productivity safe and effective. As we know that, many noxious gases in the coal mine laneway are compossible and their flowing states are complicated. In order to acquire...
Middle and small size fault structure is the key geological factor affecting the safety production of DongPang mine field. Finding out development character of middle and small fault structure in DongPang mine field is to provide the geological premise for mining design of coal mine and working face layout. Based on the analysis of real data, 20 factors affecting the development of middle and small...
Gas migrating in goaf and congregating in upper corner result in gas over limit in upper corner which greatly influences coal mining safety. To explore the cause of upper corner gas over limit and control it, this paper provides Lattice Boltzmann Method (LBM) simulation of gas migration and control in goaf of fully mechanized coal caving mining face. After analyzing the characteristics of goaf, a...
Structural equation model is constructed to discuss the interaction between affecting factors of safety management capability of coal mine. Fundamental data is acquired from questionnaire of coal mine worker. 20 factors in all classified into four layers: worker, team, firm and environment are extracted in questionnaire. Taking factors of worker layer as endogenous latent variable, taking factors...
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