Influence of technological parameters of hydrohammer DAEWOO DOOSAN on its performance
DOI:
https://doi.org/10.15587/1729-4061.2014.22138Keywords:
crushing, hydrohammer, oversize, performance, energy intensity, face, efforts, basis, rebound, stopeAbstract
Nowadays, explosive methods of destruction of oversize rock pieces are obsolete. That is why, mechanical methods of destruction of oversize pieces became widespread recently. One mechanical method is crushing the oversize by hydrohammer. Today, this destruction technology for oversize pieces is studied insufficiently. Investigating the main factors, influencing the working equipment performance, and mineral production mining conditions will allow to increase the destruction process performance.
Experiments were conducted at the Sabarovskiy granite deposit (Vinnitsa, Ukraine). The basic excavator was DAEWOO DOOSAN SOLAR 255LC-V with hydraulic hammer DAEWOO DOOSAN DXB 90.
The publication gives the analysis of timing of oversize destruction by hydraulic hammer. Two bulks of oversize are analyzed - in one bulk, the oversize is laid partially with the working platform width of 10 m and the length of 35 m, in the second, oversize pieces are placed evenly with the working platform width of 15 m and the length of 40 m.
The factors, influencing mechanical oversize destruction efficiency and oversize location influence on the hydrohammer performance are considered, performance and energy intensity dependences on the volume of oversize at its different locations are determined in the paper. Experimental study of crushing the oversize into standard pieces in different technological conditions will allow to optimize the backhoe face plan and form the optimal face width for hydraulic hammers.
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