| Study on temperature field of the drilling machine during the course of drilling in coal mine |
| |
| 作者姓名： | 刘志超[ ] 余明高 郑立刚 潘荣锟 |
| |
| 作者单位： | [1]School of Mechanical Engineering, Southwest Jiaotong University, Chengdu 610031, China [2]School of Mechanical Engineering, Henan Polytechnic University, Jiaozuo 454003, China [3]School of Safety Science and Engineering, Henan Polytechnic University, Jiaozuo 454003, China |
| |
| 基金项目： | Supported by the ＂863＂ Program（2003AA131100-02-06） and the National Natural Science Foundation of China（50274061） |
| |
| 摘 要： |
|
| 关 键 词： | 瓦斯抽放 钻机 温度场 数值模拟 |
Study on temperature field of the drilling machine during the course of drilling in coal mine |
| |
| LlU Zhi-chao, YU Ming-gao, ZHENG Li-gang, PAN Rong-kun.Study on temperature field of the drilling machine during the course of drilling in coal mine[J].Anhui Medical Journal,1991,12(1):60-63. |
| |
| Authors: | LlU Zhi-chao YU Ming-gao ZHENG Li-gang PAN Rong-kun |
| |
| Institution: | 1. School of Mechanical Engineering, Southwest Jiaotong University, Chengdu 610031, China; 2. School of Mechanical Engineering, Henan Polytechnic University, Jiaozuo 454003, China; 3. School of Safety Science and Engineering, Henan Polytechnic University, Jiaozuo 454003, China |
| |
| Abstract: | The working conditions of the MK-3 type full hydraulic tunnel drilling machine during the course of drilling were analyzed. Based on the energy balance governing equations for the drill rod, the temperature field of drill rod at the normal and non-normal working conditions was numerically obtained. The numerical results show that the maximum temperature at the head of drill rod under the normal working circumstance is insufficient to ignite the gas. But under the non-normal working condition, the local high temperature can ignite the gas easily and cause the fire. In order to prevent the gas fire, the occurrence of the non-normal operating condition must be prevented as far as possible during the drilling. |
| |
| Keywords: | gas drainage drilling machine temperature filed numerical simulation |
| 本文献已被 维普 等数据库收录！ |
|
