零下温度对采矿作业的影响零下温度可能带来困难,也可能有它的好处。大多数北方的矿山都将通风风流加热,以使井下温度保持在冰点以上。这样可为操作人员提供更适宜的作业条件,避免生产用水结冻带来的问题,使柴油发动机较易起动。然而,在加拿大小康沃利斯(Little Cornwallis)岛的北极星(Polaris)矿却 Impact of sub-zero temperatures on mining operations Sub-zero temperatures can be difficult and may have their benefits. Most northern mines heat the ventilation to keep the downhole temperature above freezing. This can provide operators with more suitable operating conditions, to avoid the problems caused by the production of water freezing, the diesel engine easier to start. However, the Polaris mine in Little Cornwallis, Canada,