Foundry Dedusting - Example Zinc Melting Furnace
For a newly erected shaft zinc melting furnace, a dry dedusting system was to be supplied that captures the flue gases in all operating phases of the furnace and reduces dust emissions well below the permissible values of the legislator.
Via an extraction hood integrated in the furnace cladding, the zinc dust-laden exhaust gases are captured one hundred percent and fed to the filter system.
For technological reasons and to keep heat loss in the furnace to a minimum, it is necessary to maintain as constant a negative pressure as possible in the furnace hood.
This adaptation to the different operating phases is carried out fully automatically via a reliable throttle control.
During holding operation, the fan is switched off and the still occurring small residual gas quantities pass through natural draft via the round bag filter cleaned into the atmosphere.
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