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北方矿山冬季地表气温较低,如无空气预热措施,可使入风井冻冰,造成卡罐、坠罐、落冰伤人和冻裂风水管路等事故,影响正常生产和人员安全。不少矿山在多年生产实践中,逐步采用利用地温预热入风流,防止提升井冻冰的措施,收到了很好的效果。这是一个多快好省的办法。目前华铜、临江、桓仁、青城子、柴河、红透山、岫岩、五龙等矿均普遍采用,积累了一定的经验。我室于1974—1975年间,在广泛学习各矿生产实践经验的基础上,进行了一些观测、分析和总结,对风流预热系统和预热卷道参数的计算提出了一些建议,希望能对现有生产矿山推广利用地温预热经验和新设计矿山选择入风预热方案提供一些借鉴。由于我们调查的矿山较少,时间较短,难免有局限性。分析不当之处,请批评指正。
In the northern mines, the surface air temperature in winter is low. If there is no air preheating measures, it can freeze the inlet air shaft and cause accidents such as stuck jerry cans, falling jerry cans, ice-wounding persons and fissures of feng shui, affecting normal production and personnel safety. Many mines in the production of many years of practice, and gradually using the preheating of ground air into the wind, to prevent the freezing of ice lifting measures, received very good results. This is a quicker and easier way. At present, Huachen, Linjiang, Huanren, Qingchengzi, Chaihe, Hongtoushan, Xiuyan, Wulong and other mines are commonly used and have accumulated some experience. During the period of 1974-1975, we made some observations, analyzes and conclusions based on the extensive study of mine production practices. Some suggestions were put forward for the calculation of wind preheating system and preheating coil parameters. The existing production of mines to promote the use of preheating warm experience and the new design of mine selection into the wind preheating program to provide some reference. Due to the small number of mines we surveyed and the short duration, there are inevitably some limitations. Analysis of the wrong place, please criticize correction.