Crushing and Screening
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Mining Process
Thickening and Dewatering
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SKU:
XH-BF
Category: Flotation Equipment
BF type mechanical stirring flotation machine
- Product Introduction: A self-priming mechanical agitation type BF type mechanical agitation flotation unit that combines pulp suction and non-suction pulp.
- Capacity: 0.06～24m3/min
- Applications: BF type flotation machine is suitable for the separation of ferrous metals. It can also be used for non-metals such as fluorite and talc. It is more widely used for the separation of gold, silver, copper, iron, tungsten, lead, zinc, tin, molybdenum, nickel, tantalum, niobium, manganese ore and other non-ferrous metals. It can also be used for the rough selection and selection of ferrous metals and non-metals.
- Product Improvements: BF type flotation machine models are divided into type I and type II. Type I is an improved design based on the SF type flotation machine and is a suction tank; type II is an improved design based on the JJF type flotation machine and is a direct flow tank. They are usually referred to as BF type flotation machines.
Advantages and Features
- The impeller of the bf flotation machine is composed of a closed double truncated cone, which can produce strong circulation of the slurry
- it has large air suction volume and low power consumption
- each tank has the triple functions of air suction, slurry suction and flotation, forming a self-contained flotation circuit without any auxiliary equipment.
Working Principle
The working principle of the BF flotation machine is that when the impeller rotates, the slurry in the upper and lower impeller cavities generates centrifugal force under the action of the upper and lower blades and is thrown around, forming a negative pressure zone in the upper and lower impeller cavities. At the same time, the slurry on the upper part of the cover plate is sucked into the upper impeller cavity through the circulation hole on the cover plate, forming an upper circulation of the slurry. When the lower blade throws out the slurry to the surroundings, the lower part of the slurry is replenished towards the center, thus forming a lower circulation of the slurry. The air is sucked into the upper impeller cavity through the suction pipe and the central cylinder, and is mixed with the sucked slurry to form a large number of fine bubbles. After passing through the cover plate to stabilize the flow, the air is evenly dispersed in the tank to form mineralized bubbles. The mineralized bubbles float to the foam layer and are scraped out by the scraper to become the foam product. The structure of BF type flotation machine is as shown in the figure, which is mainly composed of impeller, cover plate, main shaft, central cylinder, tank body, etc. The entire impeller structure is installed on the main beam of the tank and driven by an electric motor through a V-belt. The structural feature of this machine is that the impeller is composed of a closed double truncated cone, which can produce strong slurry downward circulation. This machine can also be equipped with an automatic control device for the slurry to adjust the liquid level.
Technical Specifications
| Model | Effective volume (m3) | Length×width×height(mm) | Impeller diameter(mm) | Impeller circumferential speed (m/s) | Air intake volume (m3/m2-min) | Motor model | Motor power (kW) | Processing capacity (m3/min) | Single tank weight (kg) |
|---|---|---|---|---|---|---|---|---|---|
| BF-0.15 | 0.15 | 550×550×600 | 200 | 6 | 0.9~1.05 | Y112M-6 | 2.2 | 0.06~0.16 | 270 |
| BF-0.25 | 0.25 | 650×600×700 | 250 | Y100L-6 | 1.5 | 0.12~0.28 | 370 | ||
| BF-0.37 | 0.37 | 740×740×750 | 286 | 7.2 | Y90L-4 | 0.2~0.4 | 470 | ||
| BF-0.65 | 0.65 | 850×950×900 | 300 | 7.35 | 0.9~1.10 | Y132S-6 | 3 | 0.3~0.7 | 932 |
| BF-1.2 | 1.2 | 1050×1150×1100 | 450 | 7.02 | Y132M2-6 Y132M1-6 | 5.5 4 | 0.6~1.2 | 1370 | |
| BF-2.0 | 2 | 1400×1450×1120 | 500 | 7.5 | Y160M-6 | 7.5 | 1.0~2.0 | 1750 | |
| BF-2.8 | 2.8 | 1650×1650×1150 | 550 | 8.06 | Y180L-8 | 11 | 1.4~3.0 | 2130 | |
| BF-4.0 | 4 | 1900×2000×1200 | 650 | 8 | Y200L-8 | 15 | 2.4 ~4.0 | 2585 | |
| BF-6.0 | 6 | 2200×2350×1300 | 700 | 7.5 | Y225S-8 | 18.5 | 3.0~6.0 | 3300 | |
| BF-8.0 | 8 | 2250×2850×1400 | 760 | Y225M-8 | 22 | 4.0~8.0 | 4130 | ||
| BF-10 | 10 | 2250×2850×1700 | 7.52 | 5.0 ~10 | 4500 | ||||
| BF-16 | 16 | 2850×3800×1700 | 850 | 8.7 | Y280S-8 Y280M-8 | 37 | 8.0 ~16 | 8320 | |
| BF-20 | 20 | 2850×3800×2000 | Y280S-8 | 45 | 10.0 ~20 | 8670 | |||
| BF-24 | 24 | 3150×4150×2000 | 920 | Y315S-8 | 55 | 12.0 ~24 | 8970 |
Case Study
In 2008, an iron ore flotation plant in Sudan purchased this type of flotation machine from Huston. The various indicators of the BF flotation machine are better than those of the 5A flotation machine, and the single-capacity electricity saving is 23.96%. When the grade of the iron coarse concentrate selected by the plant is less than 20%, the iron metal recovery rate is increased by 6.58% through re-selection by the BF flotation machine, and the energy consumption is reduced by 15% to 30%. This avoids a series of unnecessary waste of resources and saves costs for the plant.
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