The Type Universal circular motion Screens are new generation vibratory screening machine characterized by low profile, efficient protection of support structure from vibrating masses and virtually noiseless operation. The various versions of these circular motion Screens permit its Use for wet and dry screening, coarse and fine Separations and are widely used in steel mills, mineral Beneficiation plants, chemical, mining, food and Fertilizer industries, coal preparation plants and many others.
The circular motion screens consists of screens box, supporting device, vibration exciter, transmission part. The barrel-type vibration exciter is installed in the middle part of the machine. During normal operation, the vibration of exciter will drive the screens mesh fixed on the screens box vibrate, and then materials will be screened.APPLICATIONS:
This machine are mainly used in chemical industry, power station, steel works, coal plant, mine, building sites, etc,. Our scalping circular motion screens can be customized to meet various requirements. High-quality and safe operations. With single or multiple screens decks. Sand and gravel, building materials minerals, ores, pellets, sinter coal, coke, lignite, limestone, dolomite, chemical products, fertilizers.VIBRATOR UNIT:
The vibrator Unit is a steel shaft, completely housed in a protective steel tubular casing which in turn is provided with an easily replaceable rubber cover to resist damage and abrasion. Balance Weights are keyed to shaft. The bearings are specially designed for the use on circular motion screens and are a high capacity self aligning double roller type.
These bearings have special tolerances and improved lubrication facilities to give extended bearing life under their ardous working conditions. Labyrinth type grease sealings are provided to prevent dust getting into bearings. A deep groove V-belt Pulley is bored eccentrically to ensure true running arn to obviate the belt whip.TECHNICAL DATA:
The Circular Motion Screens are bolted single or multi deck structure with a substantial and rigid design. The circular motion screens body consists of the two side plates with bolted transverse supports and screens mounts. The screens box is based on an open design. Drive shaft with its eccentric weights runs in heavy duty self-aligning roller bearings. The throw of the vibrating screens are varied by adjusting the eccentric weights.
The drive is either direct or through cordon shaft and v- belts. The circular motion vibrating screens are supported above the substructure by means of helical coil compression springs. The screens installation angle can be varied to suit the application. There are several options for lubrication, oil or grease, which can be used without modification. Selected bearing seals ensure a long service life.STRUCTURES:
A Type Circular Motion Vibrating Screens are consisted of Screens box, Screens, Vibrating motor, Reducing setting and Base plate. The angle of the screens could be changed by the adjustment of the height of the base plate. Usually the vibrating motor is fixed on the right side of the screens frame. We have all sorts of screens for our users to choose.WORKING PRINCIPLE OF VIBRATING SCREENS:
Circular motion (Single-shaft) screens. When the shaft of an inclined screens are located precisely at the screen's centre of gravity, the entire screens body vibrates with a circular vibration pattern. Occasionally, the shaft is installed above or below the center gravity as in the system this placement result in an elliptical motion, slanting forward at the feed end. A circular motion at the center; and an elliptical motion, slanting backward at the discharge end. Forward motion at the feed end service to move oversize material rapidly out of feed zone to keep the bed as thin as possible.
This action facilitates passage of fines which should be completely removed in the first one-third of the screens length. As the oversize bed thin down, near the center of the screens, the motion gradually changes to the circular pattern to sow down the rate of travel of the solid. As the discharge end, the oversize and remaining near-size material subjected to the increasingly retarding effort of backward elliptical motion. This allow the near-size material more time to find openings in the screens cloth.
Our scalping circular motion screens can be customized to meet various requirements. High-quality and safe operations. With single or multiple screens decks.
This machine are mainly used in:
The following are the features of Circular Motion Screens :
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