Cone concentrator

It is modified by a fan-shaped chute, which removes the side wall of the circular sector-shaped chute to form an inverted cone, which is the working surface. The side effect of the fan-shaped chute and the obstruction of the slurry flow are eliminated, thereby improving the sorting effect and improving the processing capacity of the device.
The Cone Concentrator was first developed in Australia in the late 1950s and used to treat low grade beach sands. China was successfully developed by Guangzhou Nonferrous Metals Institute in the late 1970s, and was produced by the Ningde Gravity Selection Plant and the Ningde Plant of the city. The conical concentrator produced has a diameter of 2000mm and is composed of a single-layer cone and a double-layer cone. Each cone has 6 fan-shaped chutes, generally consisting of 5 cones or 7 cones. A cone concentrator consists of only 4.5m2. . The excavation device can be installed in the concentrator vessel or, for processing by the beach placer ore developed to ordinary processing, such as baddeleyite, titanium, iron ore, iron, tantalum and niobium ore, tin ore.
The factory uses FRP as the material to manufacture the conical concentrator and lining with polyurethane wear-resistant rubber. The structure and shape of the representative three-segment seven-cone cone concentrator are shown in the following figure. The main technical parameters are listed in the following table.
Main technical parameters of cone concentrator (Ningde Gravity Concentrator)
Cone diameter / mm
Cone angle / (°)
Fan chute size / mm × mm × mm
Slot width / mm
Suitable person size / mm
Processing capacity / (t / h)
Feed concentration (%)
Single cone
Double cone

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