W.S. Tyler’s scarabaeus pelletizing disc converts wasteful fines into a transportable and marketable pelletized product. Fines are mixed inside this large disc of up to 25 ft. (7.6 m) in diameter with a binder, such as bentonite, and an additive that adheres to the material. As the disc rotates at up to 10 rpm, these materials agglomerate into salable pellets consistently sized between 0.35 and 0.63 in. (.8 and 1.6 cm) in diameter at a rate of up to 150 tph (136 t). Offering variable sidewall height, speed and inclination during operation, it provides a consistent product at a consistent rate. In addition, the scarabaeus pelletizing disc minimizes recirculation loads typical of traditional pelletizing discs by up to 20 percent, and reduces energy costs up to 5 percent through its direct-drive technology, according to the manufacturer.

Material processing operations often struggle with how to use or dispose of the leftover low-grade, low-value fines. These fines end up in tailing ponds or create mountainous stockpiles that increase operational expenses, reduce the bottom line and create environmental concerns.

Pelletizing technology takes this waste material and converts it into a salable product for various fill applications and other uses.

Scarabaeus pelletizing discs were designed to minimize recirculation loads by up to 20 percent compared to traditional pelletizing technologies, resulting in significant production increases.

This can generate millions of dollars in additional production revenue. In order to achieve such large efficiency increases, the pelletizing discs are engineered so operators can automatically adjust the sidewall height between 22 and 35.4 in. (56 and 90 cm) during operation at a rate of 0.04 in. (.1 cm) per second. In addition, users can adjust the following during operation:

• Drive speed

• Angle of inclination (between 45 and 60 degrees)

• Height of the tungsten carbide scraper

• Rate at which water is sprayed into the system

Unlike common geared mechanical pelletizing systems, scarabaeus pelletizing discs offer a direct-drive technology that works without a gearbox and hydraulic coupling. This eliminates the maintenance required for traditional components. The drive’s efficiency minimizes energy losses within the system and reduces total energy costs by up to 5 percent — a large number considering the utility consumption of mineral processing operations. As a result of the direct drive, operations can start up with a full material load, allowing even more production time.

W.S. Tyler is a member of the wholly owned German-based Haver & Tyler Processing Technology Alliance, and a manufacturer, systems provider and specialist in the screening, washing and pelletizing industry.

For more information, call 800/325-5993 or visit www.wstyler.ca.

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