梁北礦大采高鬆軟突出煤層工作麵綜合防塵技術

摘　要:分析了梁北礦11081工作麵粉塵分布特點,通過理論分析和現場測試,定性給出了大采高鬆軟突出煤層綜采工作麵的產塵特點和擴散規律,分析了煤壁垮落產塵特點和采煤機割煤產塵中粉塵分布特征。提出綜采工作麵三維"立體"控塵、防塵技術,即含塵氣流控製技術、采煤機高壓外噴霧降塵技術和采煤機塵源跟蹤降塵技術相結合的綜合防塵技術。在原有降塵措施基礎上降塵效率提高了82.2%,使得工作麵工作環境得到了很大的改善。

關鍵詞:大采高 鬆軟突出煤層 防塵 高壓外噴霧 塵源跟蹤

分類號:　TD714.4Dust control technology of workface with large cutting height of soft outburst coal seam in LiangBei coal mineDUAN Zong, WANG Chao-qun, DAI Zheng-lie ( 1. Yunnan Dongyuan Coal & Power Co. ,Ltd, Knaming ,650224 China ;2. School of Safety Engineering, China University of Mining & Technology , Xuzhou , 221116 , China ;3. North China Institute of Science and Technology, Yanjiao , 101601, China)Abstract:This article analyzes the characteristics of dust distribution in 11081 workplace in Liangbei coalmine. We know the characteristics and diffusion law of workface with large cutting height of soft outburst coalseam, analyzes the distribution of producing dust of coal wall caving, put forward the dust control technologyof 3D "stereo", include the dusty airflow control technology of coal mining machine, high pressure sprayingdust settling technology and shearer dust source tracking technology. The dust removal efficiency is improvedby 82.2% , makes the work surface of the work environment greatly improved.

Keyword:large cutting height; soft outburst coal seam; dust-proof; high pressure spraying; dust sourcetracking