發(fā)布時間：2018-08-04 09:25

【摘要】：針對神東大柳塔煤礦掘進巷道"長距離、大斷面"的特點,研究掘進工作面風流場分布規(guī)律。通過處理軟件GAMBIT建立掘進工作面的三維仿真計算模型,采用FLUENT模擬了掘進工作面長壓短抽通風方式下不同風口位置、不同抽吸風量的風流分布規(guī)律。研究表明,長壓短抽的通風方式下,壓入式風流的射流影響區(qū)域明顯大于抽出式;大斷面巷道中壓入式射流速度衰減較快,其有效射程約為13 m;隨著掘進長度增加,壓入風量減少,會造成巷道中部分區(qū)域最小風速不滿足《煤礦安全規(guī)程》的要求。
[Abstract]:According to the characteristics of "long distance and large section" in driving roadway of Shendong Daliuta Coal Mine, the distribution law of wind flow field in tunneling face is studied. The three-dimensional simulation calculation model of tunneling face is established by processing software GAMBIT, and FLUENT is used to simulate the distribution of air flow in different tuyere position and different suction volume under long pressure and short suction ventilation mode in tunneling face. The results show that under the ventilation mode of long pressure and short pumping, the influence area of the jet flow is obviously larger than that of the extraction type, and the velocity of the impingement jet in the large section roadway decays rapidly, and its effective range is about 13 m; with the increase of the driving length, The minimum wind speed in some areas of roadway will not meet the requirement of coal mine safety regulation.
【作者單位】： 神華神東煤炭集團有限責任公司;遼寧工程技術大學;黑龍江科技大學黑龍江省普通高校采礦工程重點實驗室;北京龍軟科技股份有限公司;
【分類號】：TD724

【相似文獻】

相關期刊論文 前2條

1 李平康;;巷道交叉點大斷面臺棚施工探究[J];今日科苑;2014年04期

2 ;[J];;年期

，

本文編號：2163390