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一种直径5厘米的充气水力旋流器现已用于从水中脱除弥散的油脂。现已发现这种设备在矿物浮选方面很有用;同时,在从水中分离悬浮油时,也显示出了广阔的前景。矿物浮选中的一个例子就是在处理斑铜矿时,当采用与现厂一样的药剂制度时,可以得到与现厂相同的回收率,只是品位比现厂低一半。在处理含油废水时,当分流比(溢出体积/底流体积)为1/10时,溢流中油的浓度为进料中的6倍。结果认为,当分流比为3/10,且气水比为11/10时,分离效果最好。当分流比趋近1时,分离结果大大降低。还研究了表面活性剂在此设备中的作用,认为影响不大。 这种充气水力旋流器呈圆筒形,筒壁上是密集的微孔,空气从这些微孔中鼓进去。其结构简单、水的流量大;与其它油—水分离设备相比,它具有处理能力大、成本低等优点。特别适用于从水中有效地分离滴状和微粒状油。此外,当
A 5 cm diameter aerated hydrocyclone is now used to remove dispersed grease from the water. It has been found that this equipment is very useful in mineral flotation and at the same time shows great promise in the separation of suspended oil from water. An example of mineral flotation is the same recovery rate as the existing plants when using the same chemical system as the existing plants when processing beryllips, but the grade is half as low as that of the factory. In the case of oily wastewater, the overflow oil concentration is six times the feed when the split ratio (overflow volume / underflow volume) is 1/10. The results show that, when the split ratio is 3/10, and the air-water ratio is 11/10, the separation effect is the best. When the split ratio approaches 1, the separation result is greatly reduced. Also studied the role of surfactant in this device, that little effect. This aerated hydrocyclone is cylindrical in shape, with dense micropores on the cylinder walls through which air is blown in. Its simple structure, large flow of water; Compared with other oil-water separation equipment, it has the advantages of large processing capacity, low cost and so on. Particularly suitable for efficient separation of droplets and particulate oil from water. In addition, when