摘要
为提高物料破碎效率,解决露天矿破碎站大块物料导致的卡料堵塞问题,建立散体物料模型和物料粒度数学模型。首先,分析物料所受破碎力影响因素,建立不同因素作用下破碎力的数学模型;然后,以CR610/14-35型双齿辊破碎机为例,对不同齿辊中心距和齿高下不同物料的受力进行数值模拟。结果表明:物料粒度、齿辊中心距以及齿辊齿高是影响破碎站大块物料通过能力的主要因素;物料所受切向力随齿辊中心距增加而减小,随齿辊齿高增加而增大。
In order to improve the efficiency of material crushing and solve large material jamming in open-pit mine crushing stations,the bulk material model and the mathematical model of material particle size were established.Firstly,the factors affecting the crushing force of the material were analyzed,and the mathematical models of crushing force under the action of different factors were established.Then,the CR610/14-35 double-toothed roller crusher was taken as an example,and the force of different materials under different center distances and tooth heights of the toothed roller was numerically simulated.The results show that the particle size,the center distance,and the tooth height of the toothed roller are the main factors affecting the passing capacity of large materials in the crushing station,and the tangential force of the material decreases with the increase in the center distance of the toothed roller and increases with the increase in the tooth height of the toothed roller.
作者
杜志勇
DU Zhiyong(Guoneng Baorixile Energy Company Limited Opencast Coal Mine,Hulunbuir Inner Mongolia 021008,China)
出处
《中国安全科学学报》
CAS
CSCD
北大核心
2023年第S02期111-115,共5页
China Safety Science Journal
关键词
双齿辊破碎机
物料粒度
切向力
中心距
齿高
double-toothed roller crusher
material particle size
tangential force
center distance
tooth height
