Centrifuges - General Overview
In nearly all cases of mechanical liquid/solids separation, continuously operating centrifuges are the best technical and economical proposition. They can dewater large quantities of solids to low final moistures, whilst needing little space, energy and time. The correct centrifuge will reduce the cost of thermal drying considerably and may even make it superfluous. SIEBTECHNIK specialise in the development and manufacture of continuously operating centrifuges. Our technical experts are at your disposal to advise you on the most suitable centrifuge. Machines are available for test either on your premises or in our test establishment.
Screen/Scroll Centrifuges - Overview
The most versatile of our continuously operating centrifuges are screen/scroll centrifuges in which the solids retained on the sieve are transported from the small to the large diameter through the angle of inclination of the basket and the slightly different speed of the scraper worm. With an angle of inclination of the basket adapted to the feed material, widely different products such as short fibre cotton linters, ice crystals from freeze concentration or granular plstics, specifically salt crystals of diverse origin and consistency are successfully separated from the mother liquor, and where necessary, purified by washing. Depending on the operational conditions, the screen basket is provided with perforated sheets or slot sieves.
Decanter Centrifuges - Overview
Decanter Centrifuges are used to separate very fine solids from liquids of lighter density. The solids form a sediment in the liquid, but are not retained by a screen as in a screening centrifuge.
The speed of sedimentation can be increased by adding flocculents. In the solid bowl centrifuge the sedimented solids are transported by the scroll to the smaller diameter and discharged, while the clear liquid flows over the adjustable weir at the cylindrical end of the machine.
The screen decanter centrifuge is a combination of a decanter and a screen centrifuge, which has a screen section to further reduce the final moisture. Material passing through the screen section can be recycled to the centrifuge feed.
The construction and working method of the Conturbex Screen/Scroll Centrifuge is shown in the cross sectional drawing. Drive unit, bearings, rotating parts in the liquids chamber and the solids discharge...
The design of this centrifuge is based on the technology of our Conturbex Screen/Scroll Centrifuge with additional pre-thickening unit for high efficiency separation of low solid concentration slurry as...
With nearly 60 years of experience building these screen/scroll centrifuges for a wide variety of processes and applications, a new generation the Conturbex CX Screen Scroll Centrifuge has been developed....
The pusher centrifuge is, as the screen/scroll type centrifuge, a continuously operating filtration centrifuge. The size of the separated solid particles will be preferably >80 µm. The solids...
The Turbo-Cascade is a special sliding discharge centrifuge which was developed for the dewatering of solids with a uniform particle size down to about 0.5 mm. The granules slide individually, not as a...
The highest throughputs, up to 350t/h of solids, are attained with vibratory centrifuges in which the solids, which are retained by the sieve, are transported from the small to the large diameter by axial...