HUDSON, NH – Olds Elevator LLC, a manufacturer of bulk material elevators, has recently built and delivered a static screw elevator to deliver high temperature particulates for a new Biomass to Energy plant built by Lockheed Martin.
The plant converts biomass into Hydrogen-rich Synthesis Gas (syngas) using a patented technology developed by Concord Blue and licensed by Lockheed. The process involves heating the biomass in an oxygen-deficient environment that pyrolizes the biomass into syngas and char. The hydrogen is used as fuel to power electric generators.
The Olds elevator is used to circulate ceramic Heat Carrier Balls (HCB’s) that drive the thermochemical reactions to pyrolize the biomass and reform gases produced. The HCB’s are returned, by gravity, to the Olds elevator at a “cool” 1,000°F after the char has been screened out and the elevator lifts the HCB’s back to the top of the tower, 60 feet above grade.
Olds static screw elevators utilize a fixed screw and a rotating lift tube to elevate bulk materials. The screw and tube are designed to grow, by thermal expansion, within a design range as the elevator heats up with hot HCB’s. The Olds elevators are also used as precision volumetric feeders that allow the operators to adapt instantly to changing conditions.