Feeding and Conveying

Feeding
In a mineral processing plant, Feeders are necessary whenever we want to deliver a uniform flow of dry or moist fractions of rock or minerals.

Generally they are categorised by the size of material to be fed, see below.
Primary Feeders
Capacity:700 - 5000 t/h apron feeder
Capacity 300 - 1200 t/h, vibrating feeder

“In circuit” feeders
Wobbler feeders
Feeding and scalping - when things get sticky!
Conveying
belt Conveyors are selected from 4 key parameters:
• Tonnage
• Size of material
• Inclination
• Distance
We also must consider wear in operation
and the environment (dust, heat, oil or chemicals etc)
Conveyor belts
Although the conveyor structure is important, most of the conveying work falls back on the conveyor belt, exposed to the material.
Flat belts are dominating, conveying up to a lifting or lowering angle of approx. 18°. Depending on duty the belts are reinforced with different materials (Polyester/ Polyamide, Aramid fibres or mesh net Steel Cords) in 2-5 plies, protected by a top cover of 2-6mm thickness.
The polymer material in the belt (mainly rubber) is selected according to appearance of heavy wear, heat, flames, oil etc.
Profile belts must be used when lifting angle is exceeding 18° . With a limitation of approx. 30° different profiles of the top cover must be selected to prevent bulk material or unit loads from sliding backward. Otherwise reinforcement and material selection criteria are similar as for flat belts above.

Belt conveyor and service points
The conveyors are the working horses of every dry processing plant in mineral processing, of key importance to keep the process flow stable.
Pictures below indicate the vital parts of the conveyor and the critical service points to be checked regularily for reliable operation.

Service points
sinonine can also provide sand washing plant epc.
sinonine technology team

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