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高威力三级煤矿许用水胶炸药巷道掘进爆破

工程爆破 ENGINEERING BLASTING 2017年8月第23卷第4期Engineering Blasting 工程爆破,2017,23(4):78‐81文章编号:1006‐7051(2017)04‐0078‐04

高威力三级煤矿许用水胶炸药巷道掘进爆破

王修辉1,郭子如2,朱福元3,张子斌1,刘伟2,杜明燃2

(1畅河南神火煤业公司新庄煤矿,河南永城476613;2畅安徽理工大学化学工程学院,安徽淮南232001;3畅淮南舜泰化工有限责任公司,安徽淮南232072)

摘 要:针对原有三级煤矿许用水胶炸药在巷道掘进中炮孔利用率低,

循环进尺少,爆破效率低的问题,采用了研制成功的的高威力三级煤矿许用水胶炸药进行掘进爆破。同时,对煤矿许用水胶炸药的爆炸性能进行了对比和分析,对高威力三级煤矿许用水胶炸药的巷道掘进爆破技术经济进行了统计分析。结果表明,高威力三级煤矿许用水胶炸药的爆炸性能接近二级煤矿炸药水平,其可燃气安全度仍然高于二级煤矿炸药,达到三级煤矿炸药水平;高威力三级煤矿许用水胶炸药巷道掘进爆破炮孔利用率提高了12%~15%,月平均进尺增加14~18m ,掘进循环次数减少,节约了大量掘进爆破直接费用,同时可缩短巷道开拓工期,提高煤炭开采效率和间接经济效益。

关键词:巷道掘进;

煤矿许用炸药;水胶炸药;爆炸性能;经济效益中图分类号:T D 235畅21 文献标志码:A doi :10.

3969/j .issn .1006‐7051.2017.04.017High ‐p ower class 3coal mine permissible water gel explosive used in tunnel excavation blasting

WANGXiu‐hui1,GUOZi‐ru2,ZHUFu‐yuan3,ZHANGZi‐bin1,LIUWei1,DUMing‐ran2

(1畅XinzhuangMiningofHenanShenhuoCoalCompany,Yongcheng476613,Henan,China;2畅SchoolofChemicalEngi‐neering,AnhuiUniversityofScienceandTechnology,Huainan232001,Anhui,China;3畅HuainanShuntaichemicalCo畅,Ltd.,Huainan232072,Anhui,China)

Abstract :In order to overcome the shortages of normal class 3p ermissible water gel explosive used in coal mine rock blasting ,such as poor utilization factor of blast hole ,short driving footage and low blasting efficiency ,the high ‐p ower class 3p ermissible water gel explosive was introduced in the coal mine tunnel blasting .The comparison of the explosion performance among sever ‐al coal mine permissible water gel explosive was presented .The technology and economical benefits of rock advancing blasting by use of the high ‐p ower class 3p ermissible water gel explosive were analyzed statistically .It was showed that the explosion p roperties of high ‐p ower class 3p ermissible water gel explosive were higher than that of normal class 3p ermissible explosives and gas safety degree was higher than the class 2p ermissible explosive .The blasting effect was obviously better than that of existing class 3coal mine permissible explosive .The utilization factor of blast hole and the monthly driving footage increased by 12%~15%and 14~18m .The round numbers of advancing blasting is decreased and the great amounts of direct blasting costs were saved .Meanwhile ,the duration of the tunnel development was shorten ,coal mining efficiency and indirect profits were improved .Key words :tunnel excavation ;coal mine permissible explosive ;water gel explosive ;explosion performance ;economic benefits 收稿日期:2017‐07‐04作者简介:王修辉(1981—),男,学士,工程师,从事煤矿井巷开拓工程技术与管理工作。

通信作者:郭子如(1962—),男,硕士,教授,从事炸药与爆破方面的教学与研究。E ‐mail :zrguo @aust .edu .cn

煤矿许用炸药又称安全炸药,是指准许在有瓦

斯、煤尘爆炸危险的煤矿井下爆破作业时使用的

炸药[1]。目前我国现有的常用的煤矿许用有乳化

炸药和水胶炸药两大类,对比乳化炸药和水胶炸药在煤矿爆破应用中的性能,发现三级煤矿水胶炸药的爆轰可靠性、稳定性和爆炸能量水平优于

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