Whole body vibration exposure and its effects on heavy earthmoving machinery (HEMM) operators of opencast mines – a review

1 Jul 2020 / by ANAND S. SHARMA, S. K. MANDAL, G. SURESH, S. ORAON, D. KUMBHAKAR

Abstract : Operators of opencast heavy earthmoving machinery (HEMM), during their 8-hour shift duration, are regularly succumbed to the high level of whole body vibration (WBV) amplitudes. Due to long and continuous working in the field, the operators of HEMM may yield to adverse health effects and results in hazardous conditions if the magnitudes repeatedly …

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Optimal control of induction machines under minimum energy in opencast mining machinery

1 Jul 2020 / by AVEEK MANGAL

Abstract: Mining industry is one of the most important users of electric motors. The most commonly used in the contemporary mining industry is alternating current (AC) machines which are used for converting electrical energy into mechanical energy. This paper presents the solution of the nonlinear optimal control problems of three-phase induction mining machinery (IMM). A …

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Experimental studies for assessing spontaneous combustion risk of some Indian coals

1 Jul 2020 / by ARJUN KUMAR, D.P. TRIPATHY

Abstract: The self-heating or the spontaneous combustion of coal is processed by which the freshly exposed coal at ordinary atmospheric temperature when is exposed to oxygen undergo self-heating i.e. increase in its temperature and ultimately leading to auto ignition and mine fire. This spontaneous combustion leads to mine fires and are prime concern in the …

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Effect of cracks on the stability of dump slope

1 Jul 2020 / by ASHUTOSH KUMAR BHARATI, ARUNAVA RAY, RAJESH RAI, B. K. SHRIVASTAVA

Abstract: Maintaining the stability of overburden dumps in opencast mines is a major challenge. Instability in dump slope occurs because of many inherent factors, cracks formed by mining activities, and natural climatic conditions etc. have been considered in this study. Numerical simulation of the dump slope has been performed using RS2 (Rocscience) software based on …

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Performance study for diesel engine: a single cylinder using a new electronic control unit of (diesel+liquefied petroleum gas) mode

1 May 2020 / by MOHANAD M, AL-KAABI HYDER, H. BALLA, MUDHAFFAR and S. AL-ZUHAIRY

Diesel engines are important and effective in many services, but it is no friendly for environmentally.
Since liquefied petroleum gas is prolific in Iraq at a lower price than other fuels and is clean and environmentally
friendly, one of the important research topics is the use of liquefied petroleum gas in diesel engines

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Long-term open pit mine production scheduling with variable cut off grade for cost optimization

1 May 2020 / by MANAS KUMAR MALLICK, B. S. CHOUDHARY and G. BUDI

Selection of cut off grade in long-term open pit mine planning is a tough research challenge now-a-days. The
subsequent operational planning for the selected cut off grade decides the economic factor in mine production
scheduling.

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Failure mode, effects and criticality analysis of dragline components and evaluation of risk priority number for effective maintenance planning

1 May 2020 / by ATMA RAM SAHU and SANJAY KUMAR PALEI

The occurrences of unexpected failures in heavy earthmoving machines (HEMMs) lead to the downtime
that reduces the productivity, safety, and reliability of the machines. Unwanted failures increase the likelihood of
unplanned maintenance activities.

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Critical analysis of Indian soda lime: scope of Improvement

1 May 2020 / by ARCHANA KUMARI, K.K. K. SINGH, K. K. MISHRA, A. KUMAR, R.K. TIWARY, S.K. SINGH and R.S. SINGH

Soda lime is one of the most popular carbon dioxide absorbent materials to be used for closed-circuit life
saving safety breathing apparatus in mining industries. A trained rescue person uses it during a situation such as a
fire, explosion or emission of toxic gasses in underground mines.

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