Process Description
In this sytem process, fiber glass melter exhaust gases are indirectly cooled in a
recuperator. The solid batch material and its transport air is injected via a batch mixer
into the recuperator exhaust stream. The addition the batch provides the reagent for
fluoride removal, while the transport air cools the gas stream. The fluoride removal
takes place in a Fluoride Reactor.
After the fluoride removal, additional cooling gas is added to the exhaust stream through
a second batch mixer. The cooling in this mixer allows boron compounds to condense
out of the gas stream.
After the second batch mixer, the exhaust gas enters a batch hopper
equipped with an internal cyclone and a baghouse on top of the batch
hopper. The solids in the exhaust gas are disengaged from the gas stream
in the internal cyclone and drop into the hopper.
The baghouse removes any residue solids from the exhaust gas. The
recycled batch then becomes the feed for the subject furnace.
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