Spiral classifying equipment is an old-fashioned classi […]
Spiral classifying equipment is an old-fashioned classification device. We first prototyped the spiral classifying equipment based on foreign drawings. After more than ten years of hard work, we basically formed series. There are nearly 20 kinds of specifications with a spiral diameter of 300-3800mm, which meets the needs of the domestic market. Improvements in product performance, manufacturing quality and structure have achieved certain results over the years.
The major components of Spiral Classifying Equipment include semicircular groove, spiral device composed of the shaft and the blade, upper and lower shafts of spiral shaft bearing, bearing, driving equipment and lifting mechanism of spiral. Its specification is represented by spiral diameter. The machine tank is installed at a slant, and the tilt angle is determined according to the equipment configuration in the process flow.
The transmission drives the screw to rotate in the tank. After the ground slurry is fed into the tank from the side, the bottom of the tank forms a In the slurry sedimentation area, the surface area and volume are determined by the inclination of the tank and the overflow weir height. The low speed rotation spiral can play a certain stirring effect. After the slurry is stirred, the light and fine particles are suspended on the overflow to form an overflow, overflowing from the overflow face of the water tank, and flowing into the next beneficiation process; the heavy particles sink in the bottom of the tank to form the back. Sand is transported by the screw to the discharge port.
Spiral classifying equipment is based on the principle that the solid particles have different sizes and different specific gravities, and thus the settling velocity in the liquid is different. The fine ore particles float in the water, and the coarse ore particles sink to the bottom of the tank. A grading device for mechanical grading by pushing up the screw to the upper part, which can grind the material powder in the mill to filtration, and then screw the coarse material into the feed inlet of the mill with the screw blade and filter it. The fines discharged from the overflow pipe. The base of the machine adopts channel steel and the body is welded with steel plates. Screw head into the water, the shaft head, the use of cast iron sleeve, wear-resistant and durable, lifting device sub-electric and manual two. The advantages of spiral classifying equipment are simple structure, stable and reliable work and convenient operation, which makes it easy to form a closed circuit operation with the mill of which the diameter is less than 3.2 m.