特厚煤层综放面两柱掩护式放顶煤支架适应性研究
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摘要
为了解决4107综采面使用ZF10000/23/37型四柱支撑掩护式放顶煤支架过程中存在移架速度慢、前后立柱受力不均衡等问题,研究了两柱掩护式放顶煤液压支架的架型特征,并根据矿井煤层地质条件和采煤工艺,4108综放工作面选用了ZFY12000/23/40D型两柱掩护式低位放顶煤支架。从工作面移架时间、放煤时间、资源回收率、支架安全阀开启率、支架检修情况以及支架片帮情况等方面,分析了4108综放工作面选用两柱式放顶煤支架适应性更优于四柱式放顶煤支架。
Aiming at the slow moving speed,unbalanced force between front and rear pillars,and poor adaptability to electro-hydraulic control system in the application of ZF10000/23/37 four-pillar support and shield caving support in 4107 fully mechanized coal face,the characteristics of two-pillar shield caving hydraulic support are studied,and according to the coal seam geology and coal mining process,ZFY12000/23/40 D two-pillar shielded low-level caving support is selected in 4108 fully mechanized caving face. The adaptability of two-pillar caving support in 4108 fully mechanized caving face is better than that of four-pillar caving support in terms of working face moving time,caving time,resource recovery rate,support safety valve opening rate,support overhaul and support sheet side condition.
Aiming at the slow moving speed,unbalanced force between front and rear pillars,and poor adaptability to electro-hydraulic control system in the application of ZF10000/23/37 four-pillar support and shield caving support in 4107 fully mechanized coal face,the characteristics of two-pillar shield caving hydraulic support are studied,and according to the coal seam geology and coal mining process,ZFY12000/23/40 D two-pillar shielded low-level caving support is selected in 4108 fully mechanized caving face. The adaptability of two-pillar caving support in 4108 fully mechanized caving face is better than that of four-pillar caving support in terms of working face moving time,caving time,resource recovery rate,support safety valve opening rate,support overhaul and support sheet side condition.
引文
[1]王国法.“十二五”煤矿开采装备技术的发展展望[J].煤矿开采,2011,16(3):19-24.
[2]王国法.放顶煤液压支架架型改革及适应性研究[C]//地下开采现代技术理论与实践新进展.北京:煤炭工业出版社,2008:16-19.
[3]丁绍南.液压支架设计[M].北京:世界图书出版公司,1992.
[4]王国法.两柱掩护式放顶煤液压支架设计研究[J].煤炭科学技术,2003,31(4):36-37,41.
[5]任永强,于海湧,范志忠.两柱式放顶煤支架支撑效率分析[J].煤炭科学技术,2011,39(4):94-96.
[6]张震.两柱及四柱放顶煤支架适应性对比分析[J].煤炭工程,2012,44(3):80-82,86.
[7]张云朝.大采高综放工作面支架适应性评价[J].煤炭工程,2016,48(6):12-14,18.
[8]郝兵兵.大倾角综放工作面液压支架选型与适用性研究[J].山西焦煤科技,2018(7):33-36.
[9]刘平.综放开采压架原因分析及防治技术[J].煤矿安全,2018,48(8):42-44.
[2]王国法.放顶煤液压支架架型改革及适应性研究[C]//地下开采现代技术理论与实践新进展.北京:煤炭工业出版社,2008:16-19.
[3]丁绍南.液压支架设计[M].北京:世界图书出版公司,1992.
[4]王国法.两柱掩护式放顶煤液压支架设计研究[J].煤炭科学技术,2003,31(4):36-37,41.
[5]任永强,于海湧,范志忠.两柱式放顶煤支架支撑效率分析[J].煤炭科学技术,2011,39(4):94-96.
[6]张震.两柱及四柱放顶煤支架适应性对比分析[J].煤炭工程,2012,44(3):80-82,86.
[7]张云朝.大采高综放工作面支架适应性评价[J].煤炭工程,2016,48(6):12-14,18.
[8]郝兵兵.大倾角综放工作面液压支架选型与适用性研究[J].山西焦煤科技,2018(7):33-36.
[9]刘平.综放开采压架原因分析及防治技术[J].煤矿安全,2018,48(8):42-44.