نتایج جستجو برای: pit mine

تعداد نتایج: 31844  

Journal: :Frontiers in Earth Science 2023

A dynamic optimization method was created to address the production schedule issue in an open-pit coal mine while taking into account characteristics of fuzzy structured element. The mining capacities all “geologically optimal push-back bodies” were then examined using moving cove method. One most crucial elements process scheduling is pricing. As a result, this work also presents technique for...

Journal: :Physics and Chemistry of the Earth, Parts A/B/C 2021

Journal: :Minerals 2022

Innovation has an important role in improving the productivity, safety and sustainability of mining operations. Historically, ore transport was done by diesel trucks, but with commitment to reduce CO2 emissions increase mine safety, companies have invested innovative, more sustainable technologies. The innovative truckless system, intensive use belt conveyors from processing plant, represents a...

Stockpiling and blending play a major role in maintaining the quantity and quality of the raw materials fed into processing plants, especially the cement, iron ore and steel making, and coal-fired power generation industries that usually require a much uniformed feed. Due to the variable nature of such materials, they even come from the same source and the produced ores or concentrates are seld...

ژورنال: طب کار 2016

Introduction: In many industrial and mining environments, heat stress not only leads to a lower productivity and poor morale, but also it increases the cost of accidents. Heat stress indices have been developed to assess heat stress at workplace. The objective of this study was to evaluate heat stress and to investigate the correlation between ESI index and some physiological parameters of work...

Journal: :Journal of the Mining and Metallurgical Institute of Japan 1960

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