碳大规模破坏的能量强度研究

Dmytro Saveliev, I. Shaikhlislamova, E. Stolbchenko
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引用次数: 0

摘要

目的。考虑煤岩体性质方向性变化的动荷载破坏煤岩体的物理力学特征和能量强度研究的方法。为了研究和评价各向异性岩石在动荷载作用下的破坏能量强度,在实验室条件下进行了试验研究。所选样品用表面活性剂(表面活性剂)饱和。在动荷载作用下试样破坏后,采用光学显微镜方法对岩石的粒度特征进行了评价。破坏的能量强度由岩石破坏产物颗粒新表面形成所耗的功决定。发现。对含煤地层岩石样品的颗粒学特征和能量特征分析表明,随着表面活性剂溶液碱度的增加,石英岩石的爆炸载荷破坏比能减小。表面活性剂对石灰石破坏性质的影响尤为显著。在爆炸荷载作用下,含纯碱饱和岩石的破坏比能减小。不同煤化程度的煤的饱和度实际上并不影响其在冲击和爆炸荷载作用下的破坏能量强度。的创意。考虑表面活性剂作用下各向异性岩石性质的定向变化,提出了一种估计各向异性岩石在动载荷作用下破坏能量强度的方法。该方法的优先权受到乌克兰专利的保护。实际的实现。表面活性剂的使用使岩石受到动载荷时的破坏比能量降低成为可能,这为开发新的节能破碎煤块方法奠定了基础。关键词:煤块,爆炸破坏,表面活性剂,粒度测定,分散。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
STUDY OF THE ENERGY INTENSITY OF CARBON MASS DESTRUCTION
Purpose. Study of the physical and mechanical characteristics and energy intensity of the destruction of coal massif rocks by dynamic loads, taking into account the directional change in their properties. The methods. To study and evaluate the energy intensity of the destruction of anisotropic rocks under dynamic loads, experimental studies were carried out in laboratory conditions. The selected samples were saturated with surfactants (surfactants). After the destruction of the samples by dynamic loads, the character of the destruction of the rock was evaluated by the granulometric characteristics using the method of optical microscopy. The energy intensity of the destruction was determined by the amount of work spent on the formation of a new surface of particles of rock destruction products. Findings. The analysis of the granulometric and energy characteristics of samples of coal-bearing stratum rocks showed that with increasing alkalinity of surfactant solutions, a decrease in the specific energy of destruction by explosive loads of quartz rocks is observed. The effect of surfactants on the nature of limestone destruction is especially noticeable. Under the action of explosive loads, the specific energy of destruction when this rock is saturated with soda ash decreases. The saturation of coal with different degrees of coalification practically does not affect the energy intensity of their destruction under impact and explosive loads. The originality. A method of estimating the energy intensity of the destruction of anisotropic rocks under dynamic loads has been developed, taking into account the directed change in their properties under the action of surfactants. The priority of the method is protected by a patent of Ukraine. Practical implementation. The use of surfactants makes it possible to reduce the specific energy of destruction when the rock is subjected to dynamic loads, which creates the basis for the development of new energy-saving methods of crushing the coal massif. Keywords: coal massif, explosive destruction, surfactants, granulometry, dispersion.
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