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| Design and application of vertical feeding hole for large diameter solid materials |
| Yuan Fei |
| Jizhong Energy Handan Mining Group Kemai Engineering Design Co., Ltd., Handan 056000, China |
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Abstract In order to realize the reasonable and rapid transportation of ground solid materials to the underground, Xingdong Mine designed a large-diameter solid material vertical feeding hole in line with the principles of low cost, short construction period, and simple and reliable system. By calculating the maximum particle diameter of solid material and the required feeding amount per unit time, the inner diameter of the feeding hole is comprehensively determined. The structure and wall thickness of the feeding pipe were determined by studying the horizontal movement speed of the filling material, the collision angle between the solid material and the feeding pipe, and the total amount of feeding. The final practice shows that the designed vertical feeding hole can meet the requirements of use, and the cost is low, which ensures the efficient vertical transportation of ground solid materials in Xingdong Mine.
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| 1 ] 缪协兴，张吉雄，郭广礼，综合机械化固体充填采煤方法与技术研究[ J ]. 煤炭学报，2010，35（ 1 ）：1 - 6.
[ 2 ] 张吉雄，缪协兴，郭广礼. 矸石（固体废物）直接充填采煤技术发展现状[ J ]. 采矿与安全工程学报，2009，26（ 4 ）：395 - 401.
[ 3 ] 缪协兴，张吉雄. 矸石充填采煤中的矿压显现规律分析[ J ].采矿与安全工程学报，2007，24（ 4 ）：379 - 382.
[ 4 ] 张文海，张吉雄，赵计生，等. 矸石充填采煤工艺及配套设备研究[ J ]. 采矿与安全工程学报，2007（ 1 ）：79 - 83.
[ 5 ] 张吉雄. 矸石直接充填综采岩层移动控制及其应用研究[ D ].徐州：中国矿业大学理学院，2008. |
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