Rotaryflux Paddle Washers
The AMP Paddle Washer is a machine designed to treat aggregates up to a maximum size of 80 – 100 mm containing clays and/or other soils with a certain percentage of fines. It is suitable for use when the traditional washing, for example irrigation chutes installed on the screens, is insufficient to obtain products that meet the specifications required for use in the production of hydraulic concrete and/or bituminous agglomerates.
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Construction
The AMP Paddle Washer breaks up the soils and clays contained in the fed all-in-one material, thanks to the forced and continuous attrition generated by the two rotors equipped with paddles, which rotate in opposite directions. The length of the machine is determined on the basis of the quantity and type of contaminants present in the aggregate. Different parameters can be adjusted for a more adequate operation of the machine, among others the aggregate feed speed, acting either on the rotating speed of the rotors or on the inclination of the machine.
Rectangular trough of great robustness, built in mechanically welded steel plate that supports two rotors made of steel tube with adequate dimensions and thickness, to which a number of paddle-holders are welded. The blades are made of a Chromium-Molybdenum alloy that guarantees maximum resistance to wear, and are mounted on the paddle-holders by means of bolts, allowing their replacement with the greatest ease and speed.
The movement of the rotors is produced by means of a drive assembly consisting of an oversized epicyclic reducer coupled to the motor (trapezoidal pulley, hydraulic coupling and transmission belts), to which is coupled a pinion that attacks on two toothed crowns, thus ensuring a perfect synchronism of the two shafts.
Solutions by Process
Washing and attrition
Solutions by Industry
Functioning
Shortly after the machine is started up, a layer of aggregate forms on the bottom of the machine to protect the machine box from wear caused by the movement of the aggregate towards the discharge point at the top of the unit. A collector with water injector nozzles is usually installed on this bottom to keep this layer fluid and thus reduce the friction of the material as it moves forward, thus reducing energy consumption.
The AMP Paddle Washer, due to its design concept and perfectly balanced movement, is vibration-free, which allows it to be installed on the same structure that supports the screen that receives the material from the unit for classification and rinsing.