Abstract
The Flash-Reactor is a new facility for recycling of zinc containing dusts from the steel industry. Therefore the facility must have the capabilities to process a wide range of dusts with varying zinc content. The Flash-Reactor pilot plant was successfully set into operation at the Montanuniversitat in Leoben in 2010 and another series of experiments was conducted in February 2011. Because of the various operating conditions adjustable in the facility and the compact design the Flash-Reactor can be used as a special melting unit for powdery goods. Siemens VAI wants to build a pilot plant for dry slag granulation for testing the possibility of integrated heat recovery, needing small amounts of liquid slag for the test performance. This is where the Flash-Reactor enters the project as upstream melting unit. Heat recovery during slag granulation provides energy recovery of 20 MWth or 6 MWel regarded to a slag mass flow of 1 t/min. Tests in the beginning of the last decade have proven the functionality of the compact dry granulation process, industrial application has failed due to uncertain economic lookout for the steel industry in that time.
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