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在矿井工作面的凿岩过程中,随着高效凿岩机的出现,要求供给工作面的风压为6～6.5公斤/厘米~2,满足这个技术条件的关键问题在于如何减小管网的压力损失和进一步提高工作面的风压。本文以大姚铜矿为例,阐明在采用一般单翼供风系统很难达到目的的同时进而从理论上探讨了单翼双回路环形供风和双翼双回路环形供风,通过设计和生产实践证明,各项技术经济指标均达到预期目的。
In the drilling process of mine face, with the emergence of high efficiency rock drill, it is required to supply the working face with air pressure of 6 ~ 6.5 kg / cm ~ 2. The key problem to meet this technical condition lies in how to reduce the pressure loss of the pipe network And to further improve the pressure on the work surface. In this paper, taking Dayao Copper Mine as an example, it is clarified that it is very difficult to achieve the purpose by using general single-wing air supply system. At the same time, the theory of single-air double-loop toroidal air supply and double- Prove that all technical and economic indicators have reached the expected purpose.