根据原煤炭部对部分矿井腐蚀情况的调查，钢铁在井下的单侧年平均腐蚀深度为０．２～１．２ｍｍ，在腐蚀严重的矿井中，钢铁的腐蚀速度为海洋环境的２～３倍。煤炭行业每年因腐蚀造成钢材损失近４００万ｔ，直接经济损失达十亿元以上。另外，因设备腐蚀损坏，影响生产造成... According to the investigation conducted by the former Ministry of Coal on the corrosion of some mines, the annual average depth of corrosion of steel on one side of the mine is 0.2-1.2 mm. In the corrosive mines, the corrosion rate of steel is 2-3 times that of the marine environment . Every year, the coal industry causes nearly 4 million tons of steel loss due to corrosion, and the direct economic loss reaches more than 1 billion yuan. In addition, due to equipment corrosion damage, affecting the production caused by ...