中国安全生产科学技术
中國安全生產科學技術
중국안전생산과학기술
JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY
2014年
4期
54-58
,共5页
孙晓梅%吕品%刘琛琛%张文涛
孫曉梅%呂品%劉琛琛%張文濤
손효매%려품%류침침%장문도
流场优化%注氮%瓦斯抽采%正交试验
流場優化%註氮%瓦斯抽採%正交試驗
류장우화%주담%와사추채%정교시험
optimization of flow field%nitrogen injection%gas extraction%orthogonal experiment
采空区注氮是一种常用的采空区防灭火及治理遗煤自燃的措施,与采空区瓦斯抽采及工作面通风相似,均会对整个工作面及采空区流场产生影响,为了实现工作面及采空区生产安全性及经济性最优化,对进风量、采空区流管总量、流管高度、流管间距、注氮量、注氮位置六因素进行正交试验,借助数值模拟软件对正交试验确定的方案进行三维流场模拟,根据模糊数学相关理论选择模糊优选评价指标及指标权重,对所得结果进行优选,得到所有因素的最优解,进而得到优组合。实现采空区注氮、瓦斯抽采及工作面通风参数优化。
採空區註氮是一種常用的採空區防滅火及治理遺煤自燃的措施,與採空區瓦斯抽採及工作麵通風相似,均會對整箇工作麵及採空區流場產生影響,為瞭實現工作麵及採空區生產安全性及經濟性最優化,對進風量、採空區流管總量、流管高度、流管間距、註氮量、註氮位置六因素進行正交試驗,藉助數值模擬軟件對正交試驗確定的方案進行三維流場模擬,根據模糊數學相關理論選擇模糊優選評價指標及指標權重,對所得結果進行優選,得到所有因素的最優解,進而得到優組閤。實現採空區註氮、瓦斯抽採及工作麵通風參數優化。
채공구주담시일충상용적채공구방멸화급치리유매자연적조시,여채공구와사추채급공작면통풍상사,균회대정개공작면급채공구류장산생영향,위료실현공작면급채공구생산안전성급경제성최우화,대진풍량、채공구류관총량、류관고도、류관간거、주담량、주담위치륙인소진행정교시험,차조수치모의연건대정교시험학정적방안진행삼유류장모의,근거모호수학상관이론선택모호우선평개지표급지표권중,대소득결과진행우선,득도소유인소적최우해,진이득도우조합。실현채공구주담、와사추채급공작면통풍삼수우화。
Nitrogen injection , as a commonly used measure of fire and spontaneous combustion prevention , like ventilation and gas extraction of the gob , could influence the flow field of the whole face and gob .In order to reach the goal of optimization about safety and economy , the air output , gob total flow tube , the height of tube , the flow tube spacing , nitrogen injection , and the location of nitrogen injection were selected to design a orthogonal experi-ment , by means of numerical simulation software orthogonal test program for the three-dimensional flow field simula-tion.Based on the theory of fuzzy mathematics , the fuzzy optimal evaluation index and index weight were chosen , the results obtained were optimized , and the optimal solution for all factors were obtained , then the excellent combi-nation was obtained .So the optimization of injection in golf ,gas extraction and ventilation parameter in working face can be achieved .