Maintained flow velocities prevent any suspended organic matter from settling with the mineral. Furthermore, wash water enters from the screw classifier into the bottom of the hopper and, aided by the central stirrer, the grit and sand particles abrade against each other, scouring any attached organic matter from their surface. This scouring process is further enhanced by air agitation. Eventually, the grit is conveyed by the screw classifier, washed, dewatered and discharged into a container. Removal of organic matter greater than 97 percent is attainable.

Classification is an operation in which solid grains of mixed sizes and often different specific gravities are allowed to settle through a fluid under such conditions that a separation will be made between slower and faster settling particles. The main purpose of the Classifier is to carry out such separation, so as to effect a definite change in the size composition of the granular material. At the same time, the Classifier accomplishes the equally important function of dewatering the grit and elevating the grit for discharge. In every classifier operation, there will be a feed, a rotating screw, an underflow and an overflow.

After 30 years of reform and development, Hongxing Machinery has achieved numerous honors on research and development of peripheral driving thickener, magnet separator and other machinery, including various kinds of certificates and awards issued by government organizations, media and marketing research organizations. Send us an email into sinohxjq@hxjq.com for more details?

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