Maintenance method for hot blast stove

The invention belongs to the technical field of blast furnace maintenance, and discloses a maintenance method for a hot blast stove, which comprises the following steps: S100, building a bearing platform connected to two sides of the hot blast stove at a position higher than a to-be-maintained position in the hot blast stove; s200, a force transmission beam connected to the two sides of the hot blast stove is erected above the bearing platform; s300, the position to be repaired is repaired; and S400, the force transmission beam and the bearing platform are dismantled. The bearing platform serves as an operation platform for erecting the force transmission beam and also serves as a safety ceiling for maintaining the to-be-maintained position, and even if the structure above the hot blast stove collapses, the safety of operators below the hot blast stove can be protected. The force transmission beam conducts force to the hot blast stove structure above the bearing platform, the load originally acting near the p