نتایج جستجو برای: iron ore mine

تعداد نتایج: 171990  

In this paper, iron ore sample from the Chadormalu was investigated to determine some comminution properties. Chadormalu deposit is one of the largest iron ore mine in Iran, which is located in Yazd province. The representative ore sample contained 57%Fe, 0.9%P and 0.17%S. The sample was crushed; afterward, it was ground in various grinding times according to the Bond Ball mill approach to spec...

2017
Ali Saeidi Olivier Deck Marwan Al Heib Thierry Verdel Alain Rouleau

The extraction of ore and minerals by underground mining may induce ground subsidence phenomena. These phenomena produce several types of ground movement like horizontal and vertical displacements, ground curvature and horizontal ground strain at the surface, and associated building damage in urban regions. The influence function is a well-known and efficient method for the prediction of these ...

آلیانی, فرهاد, درویش زاده, علی, موسوی, سید رمضان,

Do lomites and limestones o f simmilar age as Soltanieh and paleozoic forma tio ns have been tr ansformed to coa rse grained granoblas tic marbles due to in tru sion of granitic masses, located 4 km southeast of Lahijan, Iran, and barite mine ralization have also occurred. Ore mine ra ls are mos tly co ncentr a ted along th e rracture zones in do lo mites and mining activeities in the past...

2002
E. TOPAL M. KUCHTA A. NEWMAN

LKAB’s Kiruna Mine is located above the Arctic Circle in northern Sweden, and produces about 24 million tons of iron ore per year, making it is the second largest underground mine in the world today. The orebody, a world-class high-grade magnetite deposit, is approximately 4 km long and 80 m wide on average, and lies roughly in the north-south direction, with a dip of some 60 degrees. Surface m...

Journal: :The Annals of occupational hygiene 2013
Jeremiah J Peiffer Chris R Abbiss

INTRODUCTION Demand for Australian mined iron ore has increased employment within this sector, thus exposing increased numbers of workers to the harsh Australian climate. This study examined the influence of hot (>30°C wet bulb globe temperature) environmental temperatures, consistent with working in North Western Australia, on iron ore mining staff. METHODS Core temperature, hydration status...

2015
Jeremiah J. Peiffer Chris R. Abbiss Jeremiah Peiffer

Introduction: Demand for Australian mined iron ore has increased employment within this sector thus exposing increased numbers of workers to the harsh Australian climate. This study examined the influence of hot (>30C WBGT) environmental temperatures, consistent with working in North Western Australia, on iron ore mining staff. Methods: Core temperature, hydration status, perceived exertion, mo...

Journal: :International Journal of Mining and Mineral Engineering 2019

2015
Gustaf Gustafsson Hans-Åke Häggblad Pär Jonsén Masahiro Nishida

Iron ore pellets are sintered, centimetre-sized spheres of ore with high iron content. Together with carbonized coal, iron ore pellets are used in the production of steel. In the transportation from the pelletizing plants to the customers, the iron ore pellets are exposed to different loading situations, resulting in degradation of strength and in some cases fragmentation. For future reliable n...

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