锚喷粉尘受力及产尘机理分析  

Analysis on the Stress and Producing Mechanism of Shotcrete Dust

作　　者：赵文彬[1] 谭允祯[1] 韩广存[1] 刘燕[1] 

机构地区：[1]山东科技大学,山东黄岛266500

出　　处：《工业安全与环保》2007年第9期21-24,共4页Industrial Safety and Environmental Protection

摘　　要：通过对锚喷粉尘的受力分析,基于粉尘颗粒的基本性质,运用牛顿运动规律、流体力学的紊流射流、两相流等相关理论,对锚喷产尘原因及运动规律研究,认为锚喷尘源产生的4种方式:粉尘颗粒自身的特性及二次风流的影响,高速喷射气流带动周围的空气运动所产生的剪切作用,锚喷高速射流内部中团粒间的相互作用以及物料与受喷面的碰撞是影响锚喷产生粉尘的主要原因。Analysis on the stress of shotcrete dust is conducted.Based on the chemical and physical properties of dust particles,research on the dust producing causes and motion mechanism is conducted by using some related theories,such as Newton law,hydromechanics knowledge and two-phase flow,finding out the 4 reasons to explain dust producing and diffusion,that is,the trait of the tiny dust particle itself and the effect of outside wind flow,high-velocity current in the process of spraying,the interaction of agglomerate in the movement and the crash between the concrete and the sprayed surface.

关 键 词：粉尘颗粒 产尘机理 气固两相流 射流 

分 类 号：TD714.4[矿业工程—矿井通风与安全]