FUEL CONTROL METHOD UNDER BLAST FURNACE OPEN CEILING IN BLAST FURNACE GAS-FIRED BOILER AND FUEL CONTROL DEVICE

PROBLEM TO BE SOLVED: To provide a power generating fuel control method under open ceiling of a blast furnace in a blast furnace gas power generation capable of positively and stably preventing a trip of facility from occurring due to a rapid increasing of generated heat amount of blast furnace gas...

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Bibliographische Detailangaben
1. Verfasser:	SHINODA NORIMASA
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING COMBUSTION APPARATUS COMBUSTION PROCESSES HEATING LIGHTING MECHANICAL ENGINEERING REGULATING OR CONTROLLING COMBUSTION WEAPONS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a power generating fuel control method under open ceiling of a blast furnace in a blast furnace gas power generation capable of positively and stably preventing a trip of facility from occurring due to a rapid increasing of generated heat amount of blast furnace gas under occurrence of open ceiling of the blast furnace without inducing any substantial increasing in cost and provide a device used for it.SOLUTION: In a blast furnace gas power generation in which blast furnace gas is fed as fuel into a boiler for use in generating steam for power generation through a flow rate adjustment valve, a part of exhaust gas of the boiler is fed into an upstream side than that of the flow rate adjustment valve in a fuel feeding flow passage for feeding blast furnace gas into a fuel supply port of the boiler under an open ceiling state of the blast furnace and mixture gas of the blast furnace gas and the exhaust gas is fed into the boiler.