神华科技
神華科技
신화과기
NORTHWEST COAL
2013年
3期
25-28
,共4页
Y型均压通风%隅角后移%专用回风巷%注浆隔离
Y型均壓通風%隅角後移%專用迴風巷%註漿隔離
Y형균압통풍%우각후이%전용회풍항%주장격리
Y-type Voltage-sharing Ventilation%Backward of Corner%Dedicated Return Airway%Slip Casting Isolation
针对大柳塔矿22101工作面开采曾自燃发火的小窑火区下方的近距离煤层,存在复燃和有害气体的安全隐患,通过灵活运用Y型均压通风方法、泄水泄压系统、地表回填与监测监控等技术手段,为工作面回采提供了安全保障.在回采结束后,采空区CO浓度突然呈数量级异常升高情况下,通过综合分析、应用SF6示踪法验证假设等技术方法,准确查找到漏风通道和判明火源位置,并采取地面打钻注浆隔离、地表覆盖灭火、裂隙堵漏等措施,快速隔离并治理了火源,保证了安全生产.
針對大柳塔礦22101工作麵開採曾自燃髮火的小窯火區下方的近距離煤層,存在複燃和有害氣體的安全隱患,通過靈活運用Y型均壓通風方法、洩水洩壓繫統、地錶迴填與鑑測鑑控等技術手段,為工作麵迴採提供瞭安全保障.在迴採結束後,採空區CO濃度突然呈數量級異常升高情況下,通過綜閤分析、應用SF6示蹤法驗證假設等技術方法,準確查找到漏風通道和判明火源位置,併採取地麵打鑽註漿隔離、地錶覆蓋滅火、裂隙堵漏等措施,快速隔離併治理瞭火源,保證瞭安全生產.
침대대류탑광22101공작면개채증자연발화적소요화구하방적근거리매층,존재복연화유해기체적안전은환,통과령활운용Y형균압통풍방법、설수설압계통、지표회전여감측감공등기술수단,위공작면회채제공료안전보장.재회채결속후,채공구CO농도돌연정수량급이상승고정황하,통과종합분석、응용SF6시종법험증가설등기술방법,준학사조도루풍통도화판명화원위치,병채취지면타찬주장격리、지표복개멸화、렬극도루등조시,쾌속격리병치리료화원,보증료안전생산.
Safety has been guaranteed through various technological means that applied flexibly in working face extraction, like Y-type voltage-sharing ventilation method, sluice&unloading pressure system, ground backfill and monitoring and controlling, in view of potential safety hazard for existing rekindle&harmful gas of 22101 working face in Daliuta mine, which close distance coal seam under small mine fire district was spontaneous ignited. After exploitation, the CO density in gob area rose abnormally in order of magnitudes, leaking way was found and the source of ignition was distinguished exactly through some technical methods like analysis by synthesis and verify hypothesis of trace method. And finally, safety production is guaranteed for source of ignition was insulated and managed effectively, taking several measures, for example:slip casting isolation for ground drilling, land cover outfire and leaking stoppage on fracture.
