Screw classifier is used in the dressing plant to match with the ball mill to distribute the ore sand, or in the gravity dressing plant to classify the ore and mud. The particle size classification of the slurry in the metal beneficiation process and the desilting and dewatering of the washing Wait for homework. This machine has the characteristics of simple structure, reliable work and convenient operation.
The screw classifier is mainly composed of a transmission device, a spiral body, a trough body, a lifting mechanism, a lower bearing (bearing bush) and a discharge valve.
The water tank of the machine is installed obliquely. The inclination angle is determined according to the equipment configuration in the process flow. The transmission device drives the screw to rotate in the groove. After the fine slurry is fed into the groove from the side feeding inlet, a lower end is formed at the groove. The surface area and volume of the slurry settlement area are determined by the inclination angle of the water tank and the height of the overflow weir. The spiral of low-speed rotation can play a certain agitation. After the slurry is stirred, the light and fine particles are suspended on it to form an overflow, which overflows from the overflow surface of the trough and flows into the next beneficiation process; the heavy particles sink to the bottom of the trough to form a return. The sand is transported by the screw to the discharge port.
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