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Centrifugal gold concentrator, also known as water jacket centrifuge, centrifugal concentrator, is a new type of enhanced gravity beneficiation equipment based on centrifugal principle. The single gold body is sorted in the flotation concentrate, which replaces the mercury plate operation, and has no pollution to the environment. The water jacket centrifuge is composed of feeding slot, frame, tailing slot, concentrate slot, double-layer centrifugal liner, drive motor, bearing chamber, vertical shaft and other components. The double-layer centrifugal liner is divided into inner and outer layers. The inner layer is a cone-shaped body like a washing machine drying bucket. It is welded with stainless steel and has annular spacers. Form a closed water jacket with the inner layer. The middle drive shaft is a hollow shaft, and the pressure water is flushed into the inner sleeve of the double-layer centrifugal bucket through the hollow shaft, and injected into the spacer from the inner layer small holes to form backwash water. The gold-bearing minerals to be selected enter the bottom of the double-layer centrifugal bucket from the upper feeding slot in the form of pulp. Between the spacers, the light material slides upward until it reaches the upper mouth of the double-layer centrifugal bucket and is discharged through the tailings trough. The lighter substances are continuously replaced by the newly entered heavy substances out of the spacer, and after a period of time, the gold-containing heavy substances in the spacer are cleaned out.