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1、西安科技大學(xué)碩士學(xué)位論文砂墩子礦綜放面采空區(qū)煤自燃防治技術(shù)研究專業(yè)名稱:礦業(yè)工程作者姓名:吳伯慶指導(dǎo)教師:程文東;李穎飛論文題目:砂墩子礦綜放面采空區(qū)煤自燃防治技術(shù)研究工程領(lǐng)域:礦業(yè)工程碩士生:吳伯慶(簽名)指導(dǎo)教師:程文東(簽名)李穎飛(簽名)摘要煤炭是我國(guó)的主體能源,在一次能源結(jié)構(gòu)中占70%左右。在未來相當(dāng)長(zhǎng)時(shí)期內(nèi),煤炭作為主體能源的地位不會(huì)改變。煤層自燃火災(zāi)是礦井的主要災(zāi)害之一,不僅造成了嚴(yán)重的人員傷亡和巨大的經(jīng)濟(jì)損失,而且還會(huì)引起環(huán)境污染和生態(tài)平衡的破壞。綜放工作面在回采過程中開采強(qiáng)度大,冒落空間廣,工作面供風(fēng)量相對(duì)較大,一次性遺煤較多,漏風(fēng)強(qiáng)度大,回采工作面上下順槽上部
2、頂煤放出率低,采空區(qū)堆積大量松散煤體,使得采空區(qū)遺煤自燃危險(xiǎn)性增大。本文以砂墩子礦N4002綜放面為研究背景,根據(jù)N4002綜放面的現(xiàn)場(chǎng)實(shí)際情況,理論分析了綜放面采空區(qū)煤自燃的特點(diǎn)及其影響因素。利用XK—Ⅵ型煤自然發(fā)火實(shí)驗(yàn)臺(tái),實(shí)驗(yàn)研究了砂墩子煤礦4#煤的自燃特性參數(shù),為采空區(qū)煤自燃的預(yù)測(cè)預(yù)報(bào)奠定了基礎(chǔ)。根據(jù)現(xiàn)場(chǎng)實(shí)際觀測(cè),對(duì)砂墩子礦N4002綜放面采空區(qū)自燃“三帶”進(jìn)行了劃分,并確定了自燃危險(xiǎn)區(qū)域。最后,提出了以注氮、灌漿和控制采空區(qū)漏風(fēng)為主的煤自燃防控技術(shù),保證礦井安全高效生產(chǎn)。關(guān)鍵詞:綜放面;采空區(qū);煤自燃;防滅火研究類型:應(yīng)用研究Subject:StudyontheTechno
3、logyofCoalSpontaneousCombustionControlofFullyMechanizedTop-coalCavingFaceGoafinShadunziMineSpecialty:MiningEngineeringName:WuBoqing(Signature)Instructor:ChengWendong(Signature)LiYingfei(Signature)ABSTRACTThecoalisoneofourcountry'smainenergy,itaccountsforabout70percentofprimaryenergysource.With
4、inalongperiodtocome,thefunctionofthecoalwillremainunchanged.Coalspontaneouscombustionisoneofthemajordisastersofmine,notonlycausedseriouscasualtiesandhugeeconomiclosses,butalsocauseenvironmentalpollutionandthedestructionofecologicalbalance.Fullymechanizedtop-coalcavingfaceintheprocessofminingst
5、rength,cavingspacewide,facequantityisoppositebigger,one-timeheritagecoalismore,bothforthemined-outarea,theairleakageintensitybig,twotop-coalreleaserateislow,goaftwoaccumulationisalotofloosecoal,thegoafcoalspontaneouscombustionriskincreases.BasedontheoresandlightN4002fullymechanizedtop-coalcavi
6、ngfaceastheresearchbackground,accordingtotheactualcircumstanceofN4002fullymechanizedtop-coalcavingfaceinthescene,thetheoreticalanalysisofthecavingminingfaceofgoafcoalspontaneouscombustioncharacteristicsanditsinfluencingfactors.UsingtheXK-Ⅵtypecoalspontaneouscombustionexperimentplatform,experim
7、entalresearchonthesandlightof4#coalofcoalspontaneouscombustioncharacteristicparameters,laythefoundationsforthepredictionofgoafcoalspontaneouscombustion.Accordingtotheactualobservation,sandlightmineralN4002fullymechanizedtop-coalcavingfa