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Inventi Impact: Mechanical Engineering

Articles

  • Inventi:eme/89/14
    ROCK BREAKING BY CONICAL PICK ASSISTED WITH HIGH PRESSURE WATER JET
    30-Jun-2014 Research 2014 : July - September
    Liu Songyong, Chen Junfeng, Liu Xiaohui

    In the process of hard rock breaking, the conical pick bears great cutting force and wear, and the cutting efficiency is lower.Thus\ndifferent combination ways of water jet and conical pick were proposed to solve this issue; for instance, water jet placed in the front\nof pick (JFP) and water jet through the center of pick (JCP) was researched by numerical simulation and experiments in this paper.\nFirst, the models of rock breaking were built based on SPH combined with finite element method. Then, the stress distribution of\nrock and the cut force of pick were analyzed when the rock broken by the conical pick assisted with the high pressure water jet. It\nindicates that the effect of the JCP on rock breaking is better than the JFP. At last, experiments about rock breaking with a conical\npick and the JCP were conducted to verify the reliability of the simulation. It indicates that the rock breaking with the assistance of\nhigh pressure water jet cannot only reduce the pick force, but also increase the rock crushing volume.

    How to Cite this Article
    CC Compliant Citation: Liu Songyong, Chen Junfeng, and Liu\nXiaohui, â??Rock Breaking by Conical Pick Assisted with High\nPressure Water Jet,â? Advances in Mechanical Engineering, vol.\n2014, Article ID 868041, 10 pages, 2014.\ndoi:10.1155/2014/868041.\nCopyright © 2014 Liu Songyong et al. This article is distributed under the Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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