Demolition and construction method of blast furnace hot air furnace

摘要

PROBLEM TO BE SOLVED: To provide a method for disassembling a hot-blast stove for a blast furnace, which can simultaneously disassemble a regenerator and a combustion chamber, and does not necessitate an operation of cutting a connecting pipe which connects the regenerator with the combustion chamber at a high place.;SOLUTION: This disassembling method includes the steps of: (a) cutting a base part 2A of the regenerator 2; (b) lifting the regenerator 2 which is the upper part of the base part 2A with a jack device 6; (c) moving a movable carriage 9 for the regenerator onto the base part 2A; (d) hanging and lowering the regenerator 2 onto the movable carriage 9; (e) cutting the regenerator 2 into ring-shaped blocks; (f) lifting the regenerator 2 with the jack device 6; (g) moving the ring-shaped block to the outside of a temporarily provided frame 4 for the regenerator with the movable carriage 9; (h) carrying the ring-shaped block out of the movable carriage 9 and returning the movable carriage 9 onto the base part 2A; (i) hanging and lowering the regenerator 2 on the movable carriage 9 with the jack device 6; and (j) repeating the above steps, then cutting the connecting pipe 12, and carrying the regenerator 2 and the combustion chamber 3 out.;COPYRIGHT: (C)2009,JPO&INPIT