Thaws frozen aggregates using a high volume of hot, high pressure air. Operation and control are fully automated. The system enables weather and climate-independent concrete production and is ideal for many different types of storage facilities (rectangular, radial, or inline).
high pressure radial ventilator provides excellent heat distribution through stone and sand
air supply temperature equal to 160 °C
energy efficiency equal to 93%
automatic operation and temperature control
elimination of ice in the concrete mix
no combustion gases in the bins or silos
heat may also be used for comfort heat in the mixer area
reduced material moisture content
Northfield Block, an Oldcastle company with locations throughout Illinois, has been in business since 1949. It has built a reputation on aesthetically pleasing and quality products. In 2005, Northfield Block began construction of a big board plant on a green-field site in Morris, IL.