Bella Dryer/Cooler
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Catalog excerpts

Bella Dryer/Cooler - 1

® DRYER/COOLER The Perfect Way to Heat, Dry, Cool or Moisturize Bulk Solids

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Bella Dryer/Cooler - 2

Mixing energy and product in Product Profile The Bella® dryer/cooler offers a highly efficient method of drying or cooling powders, granulates and filter cakes. The super fast mixing capability of the Bella dryer/cooler makes it an ideal heater or cooler, since the process of drying or cooling is simply the mixing of heated or cooled air with any given material. The better the mixer, the better the dryer. Since the Bella mixer is one of the fastest mixers for mixing dry granular powders and granulates, when used as a dryer or cooler it becomes highly efficient and creates some very high...

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Bella Dryer/Cooler - 3

a unique and efficient way! How it works The Bella dryer/cooler consists of twin drums which have two counter rotating agitators with specifically angled paddles. The paddles sweep the entire bottom of both drums. The material moves in a horizontal counterclockwise direction at the perimeter while simultaneously moving both left and right in the center (Fig. 1). The heated or cooled air enters all along from the top of the Bella dryer/cooler at Zone B and Zone C. The air then moves downward in the direction of the moving agitators (Fig. 2), moving in and around the material and in and out...

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Bella Dryer/Cooler - 4

Heating/drying/ cooling procedure The supply air inlet temperature can be as high or as low as the product will allow to keep the drying or cooling time to a minimum. Once the drying/cooling process has begun, the product temperature immediately rises or falls to a predetermined maximum allowable reading. The exhaust air temperature will be only slightly higher or lower than the product temperature and is a measure of the dryer’s efficiency. The closer the relationship between the exhaust air and the product temperature, the higher the thermal efficiency of the process. Drying/cooling is...

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