强磁处理对工业循环冷却水的研究

Effect of Magnetic Treatment on Circulating Water

为了防止冷却器水管出现结垢或腐蚀问题,目前所采用的均为化学处理方法,这会造成二次污染或花费大量资金,因此采用物理方法———磁处理方法对循环冷却水测定不同磁场强度下循环水的pH值、电导率、PSI的变化情况。对比未经过磁处理的循环水,试验结果表明防垢效果最佳时的磁场强度为34 000 Gs,可以有效降低pH值,使旧垢脱落,减少循环水结垢的可能性,并用首钢高炉冷却水进行磁处理,取得了满意的效果。

At present the methods used are chemical treatment methods, which can cause secondary pollution or spend a lot of money, in order to prevent the emergence of cooling water pipe corrosion and scaling issues, the physical method such as magnetic treatment is used to test the effect of different magnetic intensity, the treatment time and the flow rate on the parameters such as PSI, pH and the electrical conductivity. The results show that the optimum magnetic intensity is 34 000 Gs and the lower pH value can be obtained, so that old scale falls off, and the possibility of scale formation is reduced. The cooling water of blast furnace in Shougang is magnetically treated and good results are obtained.