瓦斯爆炸诱导沉积煤尘爆炸研究

项目名称： 瓦斯爆炸诱导沉积煤尘爆炸研究

项目编号： No.50874062

项目类型： 面上项目

立项/批准年度： 2009

项目学科： 金属学与金属工艺

项目作者： 张延松

作者单位： 中煤科工集团重庆研究院

项目金额： 35万元

中文摘要： 沉积煤尘必须形成一定浓度的煤尘云才可能发生爆炸，这是煤尘爆炸所必须的三大要素之一，防治沉积煤尘形成煤尘云而参与爆炸对于煤矿安全具有重要意义。特别是在有瓦斯爆炸诱导的情况下，如何抑制沉积煤尘参与爆炸就显得尤为重要。为了寻找合适的抑爆途径，就必须弄清沉积煤尘在外力作用下形成煤尘云的机理以及瓦斯爆炸诱导沉积煤尘爆炸的传播规律，所以对瓦斯煤尘爆炸特性与传播机理的研究，能够解决煤矿及其它工业部门亟待解决的安全生产问题，对制定预防、控制及减小爆炸灾害的技术措施具有重要的现实意义，其社会效益与经济效益十分显著。本项目主要运用理论分析、数值模拟与实验相结合的方法对煤尘爆炸的机理，以及瓦斯爆炸卷扬沉积煤尘参与爆炸的过程进行深入研究。

中文关键词： 瓦斯爆炸；煤尘爆炸；沉积煤尘；煤矿安全

英文摘要： The explosion occurred when coal dust cloud because of deposited coal dust rising reach a certain concentration, which is one of three prerequisite elements to ignite coal dust explosion; thus, it is essential for mining safety to prevent deposited coal dust from becoming coal dust cloud to promote explosion. Especially, when explosion is ignited by gas explosion, it is significant to restrain coal dust from adhering in the explosion. In order to seek the appropriate approaches to suppress explosion, it is necessary to reveal the mechanism of deposited coal dust forming the coal dust cloud due to external influences and the regularity of gas explosion igniting deposited coal dust explosion. Therefore, researching the characteristic and mechanism of gas and coal dust explosion is able to resolve safety production issue in miming and other industries, and it is meaningful to establish the technical measures of preventing、controlling、easing the explosive accident, which can generate significant social benefit and economic benefit.This project, containing theoretical analysis, numerical simulation and explosive experiment, examined the mechanism of coal dust explosion and process of deposited coal dust rising due to gas explosion and involved in the explosion.

英文关键词： Gas explosion;Coal dust;Deposited coal dust;Coal mine safety