Some vertical spindle type pulverizers (suction and pressurized) are equipped with riffles that are prone to wear and should be inspected and replaced as needed. Riffles that are manufactured from thin materials will wear out quickly. In addition, many of them have poor distribution performance as well. Storm Technologies manufacturers heavy-duty fine cut riffles that are nearly 50% thicker than typically designed and have solid dividers. STORM® can fabricate these riffles out of a variety of material including carbon steel, AR400 and STI 8000.
Riffle replacements are part of the normal outage work scope. Installing new heavy duty fine cut riffles provided by STORM® can improve distribution and performance. If the classifier works and all other proper clearances and settings are completed, further improved fuel fineness and distribution can be achieved without much additional outage work scope.