地下掘进机割迹防爆灌溉耗水量评价

S. Mineev, O. Usov, Alexey Yanzhula, Yevhen Horodkov
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摘要

目的。为防止含有甲烷和煤尘的空气的混合物爆炸而冷却掘进机切割路径所需用水量的工程标准的制定。方法。编制了用刀具加热切削轨迹和用水冷却切削轨迹的热平衡方程。结果。得出了煤炭企业和调解机构对进口矿山机械内部灌溉系统用水量是否符合国内现行爆炸安全要求的评价标准,主要从防止割痕闪光两个方面进行评价。科学的新奇。它包括所做的假设,这些假设使得仅基于一个参数(执行机构的驱动功率)就可以可靠地(有一个坚实的边际)确定冷却切割轨迹的成本。现实意义。制定的标准允许煤炭企业专家、监督和协调机构在进口采矿机灌溉系统参数是否符合爆炸安全要求方面采取协调政策。关键词:爆炸安全,粉尘甲烷混合物,切割痕迹,摩擦火花。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
EVALUATION OF WATER CONSUMPTION FOR EXPLOSION-PROOF IRRIGATION OF CUTTING TRACES OF UNDERGROUND EXCAVATING MACHINES
Purpose. Development of an engineering criterion for evaluating water consumption for cooling the cutting path of excavation machines to prevent an explosion of a mixture of air with methane and coal dust. Method. Compilation of the heat balance equation for heating the cutting trace with the cutter and its cooling with irrigation water. Results. A criterion was obtained for evaluation by coal enterprises and conciliation organizations of the compliance of the water consumption of the internal irrigation system of imported mining machines with the current domestic requirements for explosive safety by one of two factors - prevention of the flash of the cutting trace. Scientific novelty. It consists in the assumptions made, which made it possible to reliably (with a solid margin) determine the cost of cooling the cutting trace based on only one parameter - the drive power of the executive body. Practical meaning. The developed criterion allows for a coordinated policy of experts of coal enterprises, supervisory and coordinating bodies in matters of conformity of the parameters of the irrigation systems of imported mining machines with the requirements of explosive safety. Key words: explosion safety, dust methane air mixture, cutting marks, frictional sparking.
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