Optimization of Shovel-Dumper Combination - A Case Study

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Regati Sudhakar Reddy
Sandeep Prasad
Medikondu John William
Jannela Yernaidu
Shubham Dwivedi
Dasari Appaji
A. Vivek Anand

Abstract

Selection of suitable excavator and dumper for opencast mines plays an important role in achieving targeted production. Type and bucket capacity of excavator depends on nature of material to be handled, production desired and availability of investment. Similarly, capacity of dumper depends on bucket capacity of excavator, lead distance i.e. distance from mine to crusher and availability of funds. This paper primarily focuses on analysis of match factor and match number in three mine sites. Data related to time study of various operations of excavator and dumper is collected from three mines (Penna Cement's Anantapur, Bauxite mines of Odisha Mineral Development Corporation, Odisha and Uraninite mine in Jharkhand). Based on this data, match factor and match number are analyzed to get optimum combination. This study revealed it is crucial to maintain a match factor greater than one to maximize the utilization of equipment and resources. Furthermore, it is important to recognize that the efficiency of the excavator is influenced by various factors beyond the operator's dexterity. Factors such as material fragmentation and the profile of the muck pile also significantly impact the excavator's performance.

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