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前言 渡口矿区各矿井,多采用压火式通风。几年来的生产实践证明:对于山峦起伏,地形异常复杂的山区矿井,采用压火式通风有很大的优越性。不仅风机设置及管理方便、初期投资少、速度快,而且对于露头线随山形起伏、参差不齐、落差较大的煤层群,在巷道布局、采区通风系统方面,有它独特的优点。当然也存在有不少的问题。有的至今仍在争论。过去我们对有关问题曾作过一些探讨[1],近年来的实践,使我们对其中的一些问题有了进一步的认识。 压入式通风能否适用于高瓦斯矿井?是当前争论的主要问题之一。正确的回答这个问题,不仅对于开发高瓦斯的山区矿井(南方
Foreword Dukou mine all the more pressurized crushing ventilation. Years of production practice has proved that: for undulating hills and terrain complex mountain mine, the use of pressurized fire ventilation has great advantages. Not only the fan is easy to set up and manage, but the initial investment is low and the speed is fast. Besides, the coal seam group with uneven, irregular and large drop in outcrop line has its unique advantages in roadway layout and ventilation system of mining area. Of course, there are many problems. Some are still debating. In the past, we have made some discussions on the relevant issues [1]. In recent years, our practice has brought us further understanding of some of these issues. One of the main issues in the current debate is whether pressure ventilation can be applied to high gas mines. Correct answer to this question, not only for the development of high-gas mountain mine (South