CN201334869Y - 井下松软突出煤层中风压空气钻进装备 - Google Patents
井下松软突出煤层中风压空气钻进装备 Download PDFInfo
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- CN201334869Y CN201334869Y CNU2008202224365U CN200820222436U CN201334869Y CN 201334869 Y CN201334869 Y CN 201334869Y CN U2008202224365 U CNU2008202224365 U CN U2008202224365U CN 200820222436 U CN200820222436 U CN 200820222436U CN 201334869 Y CN201334869 Y CN 201334869Y
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CNU2008202224365U CN201334869Y (zh) | 2008-11-13 | 2008-11-13 | 井下松软突出煤层中风压空气钻进装备 |
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Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101446178B (zh) * | 2008-11-13 | 2011-11-16 | 煤炭科学研究总院西安研究院 | 井下松软突出煤层中风压空气钻进装备及配套工艺 |
CN102383781A (zh) * | 2011-07-15 | 2012-03-21 | 河南理工大学 | 一种煤层瓦斯压力测定方法 |
CN103470186A (zh) * | 2012-06-07 | 2013-12-25 | 张卫星 | 一种煤矿瓦斯抽采孔钻头 |
CN104533513A (zh) * | 2015-01-07 | 2015-04-22 | 河南理工大学 | 高压磨料气体射流破煤卸压增透设备及方法 |
CN109488365A (zh) * | 2018-12-17 | 2019-03-19 | 煤科集团沈阳研究院有限公司 | 一种应用于松软煤层抽采钻孔护壁防堵塞装置及封孔方法 |
CN113123822A (zh) * | 2021-04-20 | 2021-07-16 | 焦作煤业(集团)新乡能源有限公司 | 一种大采高回采工作面区域验证接煤装置 |
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2008
- 2008-11-13 CN CNU2008202224365U patent/CN201334869Y/zh not_active Expired - Lifetime
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101446178B (zh) * | 2008-11-13 | 2011-11-16 | 煤炭科学研究总院西安研究院 | 井下松软突出煤层中风压空气钻进装备及配套工艺 |
CN102383781A (zh) * | 2011-07-15 | 2012-03-21 | 河南理工大学 | 一种煤层瓦斯压力测定方法 |
CN102383781B (zh) * | 2011-07-15 | 2014-01-08 | 河南理工大学 | 一种煤层瓦斯压力测定方法 |
CN103470186A (zh) * | 2012-06-07 | 2013-12-25 | 张卫星 | 一种煤矿瓦斯抽采孔钻头 |
CN103470186B (zh) * | 2012-06-07 | 2016-01-06 | 张卫星 | 一种煤矿瓦斯抽采孔钻头 |
CN104533513A (zh) * | 2015-01-07 | 2015-04-22 | 河南理工大学 | 高压磨料气体射流破煤卸压增透设备及方法 |
CN109488365A (zh) * | 2018-12-17 | 2019-03-19 | 煤科集团沈阳研究院有限公司 | 一种应用于松软煤层抽采钻孔护壁防堵塞装置及封孔方法 |
CN113123822A (zh) * | 2021-04-20 | 2021-07-16 | 焦作煤业(集团)新乡能源有限公司 | 一种大采高回采工作面区域验证接煤装置 |
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C14 | Grant of patent or utility model | ||
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Owner name: XI'AN RESEARCH INSTITUTE OF CHINA COAL TECHNOLOGY Free format text: FORMER NAME: CHINA COAL TECHNOLOGY + ENGINEERING GROUP XI'AN RESEARCH INSTITUTE Owner name: CHINA COAL TECHNOLOGY + ENGINEERING GROUP XI'AN RE Free format text: FORMER NAME: SIAN BRANCH OF CHINA COAL RESEARCH INSTITUTE |
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CP01 | Change in the name or title of a patent holder |
Address after: 710054 No. 52, Yanta Road, Xi'an, Shaanxi Patentee after: CCTEG Xi'an Research Institute Address before: 710054 No. 52, Yanta Road, Xi'an, Shaanxi Patentee before: Xi'an Research Institute Of China Coal Research Institute Address after: 710054 No. 52, Yanta Road, Xi'an, Shaanxi Patentee after: Xi'an Research Institute Of China Coal Research Institute Address before: 710054 No. 52, Yanta Road, Xi'an, Shaanxi Patentee before: Xi'an Branch of China Coal Research Institute |
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CX01 | Expiry of patent term |
Granted publication date: 20091028 |
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CX01 | Expiry of patent term |