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Sturtevant air classifiers balance the physical principles of centrifugal force, drag force and gravity to generate a high-precision method of classifying particles according to size or density. For dry materials of 100 mesh and smaller, air classification provides the most effective and efficient means for separating a product from a feed stream for dedusting, or for increasing productivity when used in conjunction with grinding equipment.
The Whirlwind Air Classifier is able to separate the animal feed meal, made from poultry by-products into smaller and less dense particles, providing higher protein content. The more dense particles are collected forming a high mineral animal feed. This process makes a cost effective and nutritious pet food.
Whirlwind Air Classifiers :
The heavy duty Whirlwind Air Classifier uses less horsepower than other styles of classifier and incorporates a self-contained fan and rejecter blade classification system. Its internal fan design does not require Cyclones, Airlocks or Baghouse to collect the fines. The feed is conveyed into the air separator by gravity. The fines and coarse also exit the air classifier by gravity. Major changes in product fineness are achieved by changing the quantity of internal selector blades. Minor changes are achieved by adjusting the position of external control valves.
Benefits
· Capability to process an extensive range of dry materials
· Higher capacity and finer separations than screeners
· Simple construction, low maintenance, easy-to-use controls
· Dial-in external fineness controls: no system shutdown to change products
· Maximized wear-resistance for abrasive materials in special applications
· Easily modified for air cooling or drying of product
· Safe classification for heat-sensitive materials
· No screens to wear, block, or tear