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三山岛金矿的主竖井建在海边的山坡上,井筒离海只有几十米,目前深度348.5米.井壁渗漏的咸水沿壁而流并呈滴淋状态.井筒结构件总重近200吨,按层次固定在井壁的锚杆上,这些钢结构终年处在细流咸水的冲刷和滴淋的严酷腐蚀环境中,服役27年以上.了解井下咸水的腐蚀成分,对选择有效的防护方法和涂装工艺,解决钢结构使用寿命,减少维修,提高矿井使用率,增加经济效益是必须的.
The main shaft of the Sanshandao Gold Mine is built on the hillside near the sea, and the wellbore is only tens of meters away from the sea and currently has a depth of 348.5 meters. The salt water leaking from the shaft wall flows down and drips along the wall. 200 tons, according to the level of fixed in the shaft of the anchor, the steel structure throughout the year in the trickle of salt water erosion and dripping harsh corrosion environment, served for more than 27 years to understand the corrosive components of salt water, the choice of Effective protection methods and coating process, to solve the service life of steel structure, reduce maintenance, improve mine utilization, increase economic efficiency is necessary.