Rotary Kiln System at the Graymont Lime Plant

A section of the rotary kiln system at the Graymont lime plant in Green Bay, Wisconsin, captured at night under maintenance and work lights. The massive rotating kiln—central to the calcination process that transforms limestone into high-purity lime—runs along a network of elevated platforms, access stairs, and steel supports. The orange glow from overhead lamps highlights the heat-intensive nature of kiln operations, while the surrounding catwalks and conveyors reflect the layered engineering required to keep the continuous production line moving.