Spiral Classifier for Coal Preparation Plant

Spiral classifier is a kind of separation equipment which can realize the separation of minerals with different density under the action of gravity and centrifugal force. That is, the material is bent around the vertical axis into a spiral chute, the usage of centrifugal force and gravity of the sorting of the machinery. In the field of coal preparation, mineral processing, spiral classifier has a wide range of applications.
With the development of industry, the successful usage of modern machinery in industry, for economic development to make an outstanding contribution. Coal mining technology is widely used, coal production continues to increase, and the coal in the end of the coal content and the top and bottom of the mixed amount of the corresponding increase, which to the coal preparation plant process design, production management and production cost management is very difficult, slime processing link processing costs also increased. The successful application of spiral classifier in coal preparation plant is a good combination of the characteristics of coal quality, thus reducing the difficulty of coal preparation plant management, but also reduce the processing costs and enhance the economic efficiency of enterprises. Therefore, the screw separator in the coal preparation plant application, compared to the traditional process, the advantage is more obvious.
Advantages are:
1. Low processing costs, no power, low energy consumption;
2. Through the spiral classifier of coarse slime products can be used coal slime centrifuge, sedimentation centrifuge and other dehydration equipment alone recovery, and high filter press recovery process;
3. Sorting density greater than 1.6 kg / L or more, you can achieve the desired sorting effect for most of the thermal coal and optional coking coal sorting;
4. Compared with other coarse slime classifier equipment, its technology and equipment are more mature;
5. In view of the usage of large diameter heavy medium cyclone technology, although the increase in the processing capacity of a single device, but the following 1 millimeters coal, the effect of mud sorting is obviously worse, even by increasing the feeding pressure and other means can improve the classifier effect, but also bring the system instability, slime immersion time is long, high energy consumption and many other drawbacks;
6. Select a wide range of sizes, the upper limit of 3 mm, and the lower limit of up to 0.15 mm or less.
Spiral Classifier also can be called spiral separator, screw classifier or screw separator. It is widely used in the concentrator and make up a closed-loop with ball mill. We produce high weir type classifier, single and double spiral type classifier and immersed single and double spiral classifiers. Our spiral classifiers are widely used in the separation of ore in closed circuits with ball mills for the grading of ores and metal ore-dressing and other operations.