obturation of burning zone

The improvement of hydraulic support prop dismantle processes in fire area;

火区液压支架拆除工艺改进

The veinlet belt orebady of Tongkeng Mine with spontaneous ignition formats a fire area,that makes mining sequence disorder,and a great number of stoped areas untreated.

铜坑矿细脉带矿石自燃形成火区,使矿山开采顺序紊乱,并遗留大量未处理的采空区,对矿山安全生产造成重大事故隐患。

3 mining fire area,Dedao Shenghe Coal Mine,Jixi Mining Industry Group Comp.

通过对鸡西矿业集团公司滴道盛和煤矿立井三采火区中C2H2,C2H4,C2H6,CO,温度等各种参数指标进行多年观测,对立井三采火区是否熄灭进行论证,决定启封立井三采火区。

Pillar collapse and ground activities not only caused reserve loss, fired area spread and gound-control difficulty, but also were a actual factor limiting the mine production for long time.

由于历史的原因,铜坑矿细脉带采区560m水平以上形成了一个由大量不规则矿柱群支撑的大面积火区不稳定工程结构系统,存在诸多安全隐患。

Inerting mechanism of three-phase foam containing nitrogen and its application to underground fire zone;

含氮气三相泡沫惰化火区的机理及应用研究

The practical measures of control of fire zones and effect is discussed.

论述了小恒山煤矿火区治理工程的实施措施和效果。

By defining a control volume containing all the fire, smoke and air flow in fire zone, the mechanism of flow resistance of the fire zone in horizontal tunnel with longitudinal ventilation was analyzed, and a theoretical model for calculating the fire zone s flow resistance was proposed.

通过建立风流与火源的统一控制体,分析了纵向通风水平隧道火区通风阻力的构成,建立了火区阻力特性的计算模型。

Experiences and lessons of controlling 315 fire field of 11~#coal level in Yongdingzhuang mine;

浅谈永定庄矿11号煤层315火区治理的经验与教训

Coalfield fires resulted from coal spontaneous combustion has already become one of the major casualties of coal production.

煤层自燃形成的煤田火区是煤矿区重要灾害之一。