本发明涉及金属冶金领域，特别是指一种对于低品位类氧化镍矿中的粗粒分段加酸循环浸出的方法。

The invention relates to the field of metal metallurgy, in particular to a method for segmented acid-adding and circulating leaching of coarse particles in low-grade nickel oxide ores.

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分析了浸出车间循环冷却水水质变化的原因，以及水质变化带来的结垢、腐蚀等问题，提出了几种循环冷却水处理的方法。

This paper analyses the causes of the deterioration of the cycled cooling_water and the problems of the dirt and cauterization it brings. Several ways to dispose of them are introduced.

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