Quick cooling method for tube explosion of coke dry quenching boiler

The invention discloses a quick cooling method for tube explosion of a coke dry quenching boiler, and belongs to the technical field of coke dry quenching boilers. The method comprises the following steps: A1, confirming before cooling: (1) immediately stopping production of a dry quenching system when a boiler has pipe explosion; (2) manually opening a nitrogen filling electromagnetic valve, and reducing the concentration of combustible gas in circulating gas by adopting a nitrogen filling dilution method; and (3) manually closing a dust removal and collection baffle at the top of the dry quenching furnace, and stopping an environment dust removal fan; A2, cooling measures: 1) closing an air introduction valve of the dry quenching furnace; and 2) reducing the inlet temperature of the boiler by controlling the coke discharge amount of the dry quenching furnace, the circulating gas amount, the opening degree of a return valve of the dry quenching furnace and other measures; and A3, confirming before overhaulin