Capital Equipment News September2022

SCREEN MEDIA

key to the quality and volume of production. High performance media can offer the necessary efficiency boost because some kinds accelerate stratification and increase material separation. High vibration wire screens operate at a high frequency to accelerate the stratification process. That frequency can be as high as 8 000 to 10 000 cycles per minute, as much as 13 times higher than the standard vibration of a screen box. The increased screening action spreads material over the entire screen’s surface area on all decks. This moves the material faster while maximising contact to ensure optimal throughput with no carryover. The result is a higher-quality end product. This type of screen media can also be extremely effective in removing fines. The result can be less water needed to wash material or, sometimes, a complete elimination of necessary water use. One type of screen media isn’t always the option, and the answer isn’t immediately obvious. Consult with a dealer and manufacturer to determine the best type of media to solve screening problems and improve performance. The right solution could mean turning a screen that was a bottleneck into a profit maker. b

The increased screening action from high vibration screen media spreads material over the entire screen’s surface area on all decks.

wire and 50% more than traditional polyurethane and rubber panels. It is often a good solution for issues such as pegging, blinding or material contamination. Some media are tapered to help solve these problems, while others use unique designs to allow wires to vibrate independently from hook to hook under material contact. The result is high frequency vibrations from the wires, in addition to the vibration

from the screen box. This virtually eliminates near-size pegging on the top decks and fine material blinding and clogging on the bottom decks. It also means less risk of material contamination and cleaner retained product through the middle decks. Improved efficiency Because screen machines are often placed at both the beginning and end of production, the right screen media can be

CAPITAL EQUIPMENT NEWS SEPTEMBER 2022 16