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BF Series Flotation Machine

BF series flotation machine is improved from SF series but it is mainly used for iron ore and some other large proportion minerals. It imbibe the air and ore pulp spontaneously and the double-blade impeller can agitate the coarse sand at the bottom adequately.

Flotation machine is applicable to grading of non-ferrous and ferrous metal, also applicable to grading of nonmetals, such as coal, fluorite and talc. The impeller of flotation machine is driven by motor v-belt, centrifugal effect is thus produced and negative pressure is formed, which, on the one hand, absorbs adequate air to mix with ore pulp, and on the other hand, stirs the ore pulp and mixes the ore pulp with medicines and refine bubbles; thus, the minerals will be adhered to the bubbles and float to the pulp surface and form foam layer. Adjust the opening of flash board and cone valve and control the liquid level to make the useful bubbles scraped out by scraper blade. For selection of flotation machines, the following information shall be indicated: Models, specifications and number of flotation cells. Number of scraper blade devices (left or right). Single-side scraping or double-side scraping. Numbers of feed boxes, middling boxes, tailing boxes, feed pipes and middling pipes. Liquid level can be controlled manually, electrically or automatically. Deployment diagram of flotation technological process should be provided.


1.Impeller is composed of the dosed double section cones and it can produce strong slurry cycle downward;
2.The capacity of air suction is large, the power consumption is low;
3.Every tank gas three functions of air suction, slurry suction and flotation simultaneously being unique in flotation return circuit;
4.The circuit change is convenient for horizontal position without need for any supplementary equipment;
5.The slurry cycle is rational, the settlement of coarse sand can be reduced into full play.
6.The regulation is convenient to equip auto and electro-controlling arrangements for slurry level.

Technical Data

Model Effective volume (m3) L x D x H (mm) Diameter of impeller (mm) Circular velocity of impeller (m/min) Air suction amount (m3/?O .min) Motor power (kw) Capaity (m3/min) Weight Of single tank (kg)
BF-0.25 0.25 650x600x700 250 6 0.9-1.05 1.5 0.12-0.28 370
BF-0.37 0.37 740x740x750 286 7.2 0.9-1.05 1.5 0.2-0.4 470
BF-0.65 0.65 850x950x950 300 7.35 0.9-1.10 3 0.3-0.7 932
BF-1.2 1.2 1050x1150x1100 450 7.02 0.9-1.10 5.5 0.6-1.2 1370
BF-2.0 2 1400x1450x1120 500 7.5 0.9-1.10 7.5 1.0-2.0 1750
BF-2.8 2.8 1650x1650x1150 550 8.06 0.9-1.10 11 1.4-3.0 2130
BF-4.0 4 1900x2000x1200 650 8 0.9-1.10 15 2.4-4.0 2585
BF-6.0 6 2200x2350x1300 700 7.5 0.9-1.10 18.5 3.0-6.0 3300
BF-8.0 8 2250x2850x1400 760 7.5 0.9-1.10 22 4.0-8.0 4130
BF-10 10 2250x2850x1700 760 7.52 0.9-1.10 22 5.0-10 4500
BF-16 16 2850x3800x1700 850 8.7 0.9-1.10 37 8.0-16 8320
BF-20 20 2850x3800x2000 850 8.7 0.9-1.10 45 10.0-20 8670
BF-24 24 3150x4150x2000 920 8.7 0.9-1.10 45 12.0-24 8970