Blade Mills
Blade Mills
Blade Mills, also known as Aggregate Conditioners, scour, abrade and break down water-soluble silts and deleterious clays from contaminated ores, coarse rock or sand feeds.
Applications
HOW BLADE MILLS WORK
Blade Mills scour, abrade and break down deleterious material using a combination of paddles and flights arranged in alternating format the entire length of the shaft to scour, abrade and break down deleterious material. The shafts can have different configurations, but mainly feature alternating flights and paddles.
Blade Mills sit on a slope of 0 to 5 degrees and have higher capacities compared to Coarse Material Screw Washers of the same size. This is primarily due to the lower machine operating slope of the Blade Mill. Generally, the amount of water needed for a Blade Mill is an additional third of the weight of material being processed.
A Blade Mill is used where the material needs to be worked and wetted before it enters other wet processing equipment, such as a Vibrating Screen, Fine Material Screw Washer or Sand Classifying Tank. They are most often placed ahead of wash screens to improve screening efficiencies or in front of other wash equipment to improve the Sand Equivalency (SE).
Despite being very similar in appearance to Coarse Material Screw Washers, Blade Mills process material differently. For instance, all material that enters the box, must exit through the discharge opening as there is no overflow weir. Without an overflow weir, material must be discharged into another piece of process equipment and cannot be put on a conveyor belt.
Blade Mills are predominantly used for washing contaminated construction aggregate that needs to be scrubbed due to soundness or sand equivalency requirements, as well as many non-aggregate hard ores that contain water soluble clays and silts.
