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Industry News


UCC Launches Viper Mill for DSI Systems
By Jeanne Ryan
Feb 9, 2012
  E-mail article
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Waukegan, IL -- United Conveyor Corporation (UCC) recently introduced VIPER™ Mill technology, which significantly reduces operating cost and improves emissions control of dry sorbent injection (DSI) systems. A proven, reliable patent-pending technology, the VIPER Mill reduces sorbent particle size for better removal of SO2, SO3 and HCl. Featuring the highest mill throughput in the industry, the VIPER Mill is capable of processing up to 7 tons per hour of sorbent on a 24/7 basis. It utilizes an in-line milling process eliminating the need for problematic downstream sorbent storage.

“Smaller particle size leads to lower sorbent quantity consumed. The VIPER Mill delivers the fastest return on capital investment,” states Jon Norman, DSI Technology Manager, UCC. “A single VIPER Mill can potentially reduce sorbent costs by millions of dollars annually compared to other DSI systems.”

The VIPER Mill is proven with trona and coarse sodium bicarbonate sorbents commonly used in DSI applications with eastern bituminous and PRB coal-fired power plants. In an SO2 removal application, the UCC Viper Mill can reduce sorbent usage by 30-50 percent. That equates to a $3.0 million annual savings over unmilled trona for a typical 500MW PRB unit at a 60 percent SO2 removal rate. In SO3 removal applications, the ultra-small sorbent particle size helps to achieve aggressive ppm targets, while reducing trona usage by more than 50 percent.

The VIPER Mill can ship on a fully pre-piped and pre-wired skid for simple installation and lower installed cost, and is available in standard and custom designs. The modular skid system features a patent-pending automated cleaning system to eliminate sorbent build-up and is engineered to provide easy access for preventative maintenance and life-cycle rebuilds. The automated cleaning system enables a full system cleaning cycle in less than 30 minutes and redundant skids or a bypass system ensure continued operation.

UCC DSI’s industry leading technology, including the new VIPER Mill, provides utilities with the most efficient and economical method to meet current and future emission limits and regulations. UCC offers on-site customized demonstration testing to evaluate the overall performance of its VIPER Mill and DSI technologies. Removal results are compared to a proprietary UCC database of previous testing at other coal-fired power plants validating predictable performance.

Source: http://unitedconveyor.com/




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