Method for operating a batch furnace comprising the preheating of a fluid upstream of the furnace

Furnace operation includes consecutive cycles of a heating step, a stopping step and a restarting step. The fuel and/or the oxidizing agent is preheated upstream of the furnace by indirect exchange with the discharged fumes through a medium passing through a chamber. A first wall separates the fumes...

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Bibliographic Details
Main Authors Jarry, Luc, Van Kampen, Peter
Format Patent
LanguageEnglish
Published 05.07.2022
Subjects
AIR SUPPLY
BLASTING
BURNERS
COMBUSTION APPARATUS
COMBUSTION PROCESSES
DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS,IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KINDOF FURNACE
DRAUGHT-INDUCING
FURNACES
FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL
HEATING
KILNS
LIGHTING
MECHANICAL ENGINEERING
OPEN SINTERING OR LIKE APPARATUS
OVENS
RETORTS
SUPPLYING NON-COMBUSTIBLE LIQUID OR GAS
WEAPONS
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Summary:Furnace operation includes consecutive cycles of a heating step, a stopping step and a restarting step. The fuel and/or the oxidizing agent is preheated upstream of the furnace by indirect exchange with the discharged fumes through a medium passing through a chamber. A first wall separates the fumes from the medium in the chamber. The fuel and/or oxidizing agent is separated from the medium in the chamber by a second wall. During restarting, the medium's flow rate Dm is regulated to limit the heating rate of the first wall until it reaches the operational temperature at an end thereof.
Bibliography:Application Number: US201716316235