APPARATUS FOR PREVENTING DEFORMATION OF DUST COLLECTING HOOD IN DRY FIRE-EXTINGUISHING APPLIANCE OF COKE

摘要

Introduced is a device for preventing the deformation of a dust collecting hood by which the deformation of grizzly bars can be prevented. The device for preventing the deformation of a dust collecting hood in dry fire-extinguishing system of the present invention comprises: a dust collecting duct which is coupled with one side of an entrance path for introducing a bucket containing heated coke to a pre-chamber; a plurality of grizzly bars installed at regular intervals on one end of the dust collecting duct so as to prevent the inflow of the heated coke to the dust collecting duct; a coolant supply unit for supplying a coolant to the grizzly bars; and a control unit for determining coolant supply conditions according to the temperature conditions of the grizzly bars.