Live-Bottom Silos and Bunkers

SPIRAC have been the market leading supplier of live bottom silos and bunkers for the wastewater industry since the 80’s. Hundreds of successful installations are in operation around the world, many in service for several decades.

SPIRACs live-bottom silos and hopper systems are custom designed for application in the wastewater industry, especially for the storage, transfer and outloading of dewatered sludges. While the silos and hoppers follow standardized design features, sizes and orientations can be customized to suit most customer requirements.

Three standard configurations are available to provide a wide range of cost effective designs. These silos are top loaded, typically by shaftless spiral incline or vertical/horizontal conveyors, and outloaded by large diameter/large pitch live-bottom shaftless screws. These live-bottom systems ensure the elimination of arching, ratholing or any bottle-neck type losses in flowability, even for the stickiest or driest of sludges. The basic silo design incorporates aesthetic considerations through symmetry, consistency and fabrication precision.