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Assessment of comparative operating cost of new dragline Vs. outlive dragline

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Author: 
Roshan Kumar Patel and Alok, Dr. Nawal Kishore
Abstract: 

Economic exploitation of coal now a days is very indispensable. Cost and economics play a crucial role in deciding the financial profit for an organisation. Proper planning and selection of equipment considerably affects total revenue generated by mine. Draglines are the most expensive surface mining equipment which have been abundantly used in surface mine operation and civil engineering for decades. They are versatile and provide an efficient mining method in terms of cost and economics to remove overburden. High percentage of availability and utilizationis very essentialin order to achieve high production and productivity of draglines in opencast mines. The present paper mainly focuses on the importance of economic assessment of dragline productivity parameters such as cycle time, swing angle, seating position, availability, utilization etc [1]. In this contest, calculation of operating cost of new dragline operation has been done and compared with the outlive dragline which is presently working in many of opencast mines in India. A case study has been included for providing a better understanding of cost and economics involved in newer dragline and outlive dragline operation. For this data has been collected from opencast mine where draglines have been deployed for removal of overburden for fast rate of coal exposure.

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