井下爆破过程CO气体生成规律研究
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摘要
新疆地区急倾斜煤层特殊的赋存特点决定了井下工作面回采前需要采用爆破方式对煤体进行超前预裂与松动。但煤矿许用炸药爆炸过程中会产生大量的有毒有害气体,如CO、NO和NO2等,这些气体不仅会伤害井下作业人员的身体健康,还严重干扰了矿井煤自然发火早期预测预报的准确度。为此,在典型急倾斜综放工作面采用气体浓度分析法研究超前预裂爆破后回风流中有害气体的生成规律,得到了单位质量三级煤矿许用乳化炸药完全爆炸后CO生成绝对量。
The special occurrence characteristics of steeply coal seam in Xinjiang region determine that underground mining face needs to adopt blasting to carry out pre-crack and loose before working face mining.But permissible explosive process of coal mine will produce large amounts of toxic gases,such as CO,NO and NO2,these gases will not only harm the health of mine workers,but also seriously disturbed the early prediction accuracy degree of coal mine spontaneous combustion.To this end,in a typical steeply inclined fully mechanized caving face,using a gas concentration analysis,we study the harmful gas generating law in return current after advanced blasting and pre-splitting,and get the generated absolute amount of CO of unit mass three-level mine-used permitted emulsion explosives after the complete explosion.
The special occurrence characteristics of steeply coal seam in Xinjiang region determine that underground mining face needs to adopt blasting to carry out pre-crack and loose before working face mining.But permissible explosive process of coal mine will produce large amounts of toxic gases,such as CO,NO and NO2,these gases will not only harm the health of mine workers,but also seriously disturbed the early prediction accuracy degree of coal mine spontaneous combustion.To this end,in a typical steeply inclined fully mechanized caving face,using a gas concentration analysis,we study the harmful gas generating law in return current after advanced blasting and pre-splitting,and get the generated absolute amount of CO of unit mass three-level mine-used permitted emulsion explosives after the complete explosion.
引文
[1]刘宁武,朱慧武,梅国栋,等.炮烟中毒窒息事故机理和预防措施研究[J].有色金属(矿山部分),2012(3):1-6.
[2]曹杨,纪洪广,由爽,等.炮烟中毒事故致因机理研究及预防技术[J].工业安全与环保,2015(6):73-75.
[3]王育军,夏建波,林友.掘进工作面炮烟中毒事故的事故树分析[J].昆明冶金高等专科学校学报,2009(1):5-8.
[4]杨善元,杨永琦.爆破产生的炮烟的分析与研究[J].爆破,1989(3):1-4.
[5]张舸,曹杨,纪洪广,等.独头巷道中炮烟散发规律及浓度预测模型试验研究[J].现代隧道技术,2014(4):150-154.
[6]吕早生.炮烟中有毒气体含量简化计算法[J].武汉钢铁学院学报,1995(2):121-127.
[7]陆茂成.炮烟中CO发生量的测量方法[J].铁道劳动安全卫生与环保,1991(3):63-65.
[8]苏利军,卢文波.地下巷道钻爆开挖过程中炮烟扩散及通风[J].爆破,2000(1):1-6.
[9]吕早生,王光华.炮烟中有毒气体含量的确定[J].爆破,2004(3):11-13.
[10]谢振华,李怀宇.矿山井下炮烟污染控制的研究[J].有色金属(矿山部分),1995(4):44-45.
[11]谢振华,李怀宇,袁俊芳.矿山井下炮烟污染及其控制研究[J].安全,1995(2):5-7.
[2]曹杨,纪洪广,由爽,等.炮烟中毒事故致因机理研究及预防技术[J].工业安全与环保,2015(6):73-75.
[3]王育军,夏建波,林友.掘进工作面炮烟中毒事故的事故树分析[J].昆明冶金高等专科学校学报,2009(1):5-8.
[4]杨善元,杨永琦.爆破产生的炮烟的分析与研究[J].爆破,1989(3):1-4.
[5]张舸,曹杨,纪洪广,等.独头巷道中炮烟散发规律及浓度预测模型试验研究[J].现代隧道技术,2014(4):150-154.
[6]吕早生.炮烟中有毒气体含量简化计算法[J].武汉钢铁学院学报,1995(2):121-127.
[7]陆茂成.炮烟中CO发生量的测量方法[J].铁道劳动安全卫生与环保,1991(3):63-65.
[8]苏利军,卢文波.地下巷道钻爆开挖过程中炮烟扩散及通风[J].爆破,2000(1):1-6.
[9]吕早生,王光华.炮烟中有毒气体含量的确定[J].爆破,2004(3):11-13.
[10]谢振华,李怀宇.矿山井下炮烟污染控制的研究[J].有色金属(矿山部分),1995(4):44-45.
[11]谢振华,李怀宇,袁俊芳.矿山井下炮烟污染及其控制研究[J].安全,1995(2):5-7.