Study of flotation pulp mixing and conditioning based on turbulent flow enhanced energy-density adaptation technology

In order to promote oriented absorption of collector on coal surface for hence intensifying the latter's hydrophobicity, a study is made with the focal point placed on turbulent flow enhancement-based technology for flotation pulp conditioning, which is effected through the cyclone pupl mixing-conditioning unit for achieving full reaction between coal and reagent. The impact of frequency of circulating pump on batch-flotation test result is also investigated. Test results show that after conditioning, the surface hydrophobicity and the strength and area corresponding to the surface hydrophilic functional groups of test sample are all seen to increase to some extent, and the hydrophobic functional groups represented by C—C/C—H can gain a noticeably greater rise in this respect, demonstrating that in confined space, flow plays a positive role in enhancement of collision absorption of coal particle and collector oil drop; and with the increase of frequency of circulating pump, the flotation performance is remarkably improved as evidenced by the noticeable rise of recovery of combustible matter and yield of concentrate respectively by 19.21 and 21.31 percentage points.