The screw classifier is also called spiral classifier. There are mainly four types of classifiers, namely high weir single spiral classifier, high-weir dual spiral classifier, sinking single spiral classifier and sinking dual spiral classifier. Spiral classifier is the use of solid grain size is different, the proportion of different, therefore in the liquid velocity for different principle of fine particles floating in the water in the overflow, coarse particles sink on the bottom of the channel. Conducted by spiral to the upper discharge and mechanical classification of a grading equipment, can grinding mill in the powder level in the filter, and then the coarse material using spiral vane rotary screwing in mill inlet, to filter out the fine material discharge from the overflow pipe.
The screw classifiers machine base with channel steel, the body USES the steel plate welded together. Screw shaft into the head, shaft head, pig iron, wear-resisting durable, electrical and manual lifting device is two. Maintenance of screw classifiers is as follows:
1, all the load bearing for machine, so good lubrication for the bearing life has a great relationship, it directly affects the service life of machine and availability, and requirements into lubricating oil must be clean and seal must be good, the machine's main oil (2) (1) the rotation bearing roller bearings (3) all the gear (4) activities bearing, sliding plane. 2, the tire of the newly installed easily loose must often check. 3, pay attention to each part of the machine working normally. 4, pay attention to check the easy wear parts wear degree, attention to replace the worn parts at any time. 5, put activity unit chassis plane, should be out dirt and other material to avoid activities bearing when machine can't broken material can't move on the chassis, so that a serious accident. 6, bearing high oil temperature rise, should immediately stop to check the reason. 7, the rotation gear in sound...