【摘要】：針對(duì)神東大柳塔煤礦掘進(jìn)巷道"長(zhǎng)距離、大斷面"的特點(diǎn),研究掘進(jìn)工作面風(fēng)流場(chǎng)分布規(guī)律。通過(guò)處理軟件GAMBIT建立掘進(jìn)工作面的三維仿真計(jì)算模型,采用FLUENT模擬了掘進(jìn)工作面長(zhǎng)壓短抽通風(fēng)方式下不同風(fēng)口位置、不同抽吸風(fēng)量的風(fēng)流分布規(guī)律。研究表明,長(zhǎng)壓短抽的通風(fēng)方式下,壓入式風(fēng)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(jìn)長(zhǎng)度增加,壓入風(fēng)量減少,會(huì)造成巷道中部分區(qū)域最小風(fēng)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(tuán)有限責(zé)任公司;遼寧工程技術(shù)大學(xué);黑龍江科技大學(xué)黑龍江省普通高校采礦工程重點(diǎn)實(shí)驗(yàn)室;北京龍軟科技股份有限公司;
【分類(lèi)號(hào)】：TD724

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