山西焦煤科技
山西焦煤科技
산서초매과기
Shanxi Coking Coal Science & Technology
2015年
9期
18-19
,共2页
反向封堵%回风立眼%自燃煤层%通风系统
反嚮封堵%迴風立眼%自燃煤層%通風繫統
반향봉도%회풍립안%자연매층%통풍계통
Reverse sealing%Return air inlet%Spontaneous combustion coal seam%Ventilation system
针对忻州窑矿9＃煤层与11＃煤层的层间回风立眼因冲击矿压造成巷道炸帮严重，无法从上部封堵的问题，提出了反向封堵的方案。研究表明：反向封堵在9＃煤层与11＃煤层的层间回风立眼的下方施工反向钻孔，由下向上对回风立眼灌注粉煤灰，封堵9＃～11＃层回风立眼，解决了周期来压期间冲击危险性对通风巷道的影响。同时结合本煤层自然发火期为3～6个月，反向封堵可实现通风系统的快速封闭优化，有效防止了煤层自然发火，优化了该矿305盘区通风系统。
針對忻州窯礦9＃煤層與11＃煤層的層間迴風立眼因遲擊礦壓造成巷道炸幫嚴重，無法從上部封堵的問題，提齣瞭反嚮封堵的方案。研究錶明：反嚮封堵在9＃煤層與11＃煤層的層間迴風立眼的下方施工反嚮鑽孔，由下嚮上對迴風立眼灌註粉煤灰，封堵9＃～11＃層迴風立眼，解決瞭週期來壓期間遲擊危險性對通風巷道的影響。同時結閤本煤層自然髮火期為3～6箇月，反嚮封堵可實現通風繫統的快速封閉優化，有效防止瞭煤層自然髮火，優化瞭該礦305盤區通風繫統。
침대흔주요광9＃매층여11＃매층적층간회풍립안인충격광압조성항도작방엄중，무법종상부봉도적문제，제출료반향봉도적방안。연구표명：반향봉도재9＃매층여11＃매층적층간회풍립안적하방시공반향찬공，유하향상대회풍립안관주분매회，봉도9＃～11＃층회풍립안，해결료주기래압기간충격위험성대통풍항도적영향。동시결합본매층자연발화기위3～6개월，반향봉도가실현통풍계통적쾌속봉폐우화，유효방지료매층자연발화，우화료해광305반구통풍계통。
For the problem that we can not seal the return air outlet between 9#and 11#coal seam from the top, we study the reverse sealing technology.The reverse drilling is performed at the bottom of the return air outlet between 9# and 11#coal seam in order to pour fly ash into the return air outlet from bottom to top and seal it.Study have shown that reverse sealing technology solves the problem of the risk to ventilation roadway during periodic pressuring.At the same time, combined with the natural coal seam combustion period of 3-6 months, reverse sealing technoogy can op-timize the fast closing of the ventilation system, effectively prevent the spontaneous combustion of coal seam and opti-mize the 305 panel ventilation system.
