For each type of ore, there is a suitable flotation time. If the flotation time is too short, the recovery rate is low. If the flotation time is too long, the quality of the concentrate will be lowered, and it is not economically economical. Therefore, flotation time should be determined through experimentation and production practices.

Factors affecting flotation time are: 1) ore properties ( such as floatability and desired floating mineral content ) ; 2) flotation of ore size; 3) slurry concentration: 4) pharmaceutical system; 5) form of mineral separation.

The general rule is: when the minerality of the mineral is better, the content of the floating mineral is less, the flotation machine is moderately sized ( not too fine ) , and the slurry concentration is small. The effect of the medicinal agent is fast and strong, and the conditions of the aeration and agitation are stronger, and the flotation time is shorter.

Tower Crane Power Cable

BQ supplys two types of Tower Crane Power Cable, YC Electric Power Cable and YCW Insulated Power Cable.

Power Cable is used for heavy industry including mining and marine, they must be robust and capable of handling both torsional and tensile stresses simultaneously. These mobile machines for lifting and handling are often manufactured with a robust rubber outer sheathing to protect against the constant reeling and movement as well as providing protection against oils and greases. Cables with Polyethylene (PUR) and PVC sheathing are also available. The cables are UV resistant – applications such as tower cranes and port loading gantries are subject to the elements – as well as being resistant to oils and greases.

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