Vibratory Screens & Sieves

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Vibratory screens & sieves are used in many industries for classifying and sorting. They are also needed for other applications to separate moisture from solid particles or to provide uniformity grading. Various designs make these manufacturing and industrial items specific for the industry in which they are used. By reclaiming previously discarded materials such as machine oil, screens help to capture and recycle products that helps to save energy and avoid wasting scarce resources.

The vibratory nature of movement for the materials placed upon or into the sieves and screens means that the substance to be sorted or separated, whether wet or dry, is divided into two. One portion of the materials is retained within the confines of the sieve or screen and the second goes through the holes or divisions in the screen to be either captured or carried away.

Screens that are mainly used for the separation of liquids from solids are often called sieve bend or DSM screens. They are used in industries such as coal mining & quarrying, sugar processing, processing of minerals, cement plants, industrial effluent treatment ...
... and Urban waste treatment. In the latter, the screens are used as a pre-filter in order to cut down the load on the clarifier.

Screens and sieves come in many different shapes. They may be flat bed, curved, cylindrical or any variation of the above. They might be inclined in order to improve their effectiveness. The size will vary greatly, according to the needs of the particular industry.

The devices created for some industries can be flat metal plate. They might also be inclined, with up to four components to further separate or clarify the material being processed. Those used in the mining industry are particularly heavy duty, thanks to the weight of the ore being processed. Notice must be taken of the equipment that feeds into the screen or sieve. Various feeder devices help to get the job efficiently.

In some industries, sieves and screens are portable, so that preliminary sorting can be done where it is most needed. Once the need is higher in another location, the equipment is picked up and moved to the new location. This means that minimal connections are used on-site, usually just a power source. In the case where water is present during the operation, a source of water is needed for operation.

Vibrating screens are often made of looped wire. This type of construction is often lighter in weight and may be easier to clean than flat or inclined metal beds. Chrome can be used in industries where resistance to wear is important. Some ceramic screens and sieves are produced to allow for specific industry needs.

Vibratory screens & sieves can be very important in environmental clean up operations. They are also used when recycling efforts are an ongoing part of a company's operations. For example, used machine oil is processed through narrow gauge holes in order to separate the liquid oil from filings and metal chip waste. This metal waste can be resold at a higher price because it is drip free. The cleaned oil or coolant can be reclaimed, thus saving expense to the company doing the recycling.
For more information on Vibratory Sieves and Classifying Screens contact Gough Engineering & Co Ltd.