Device for replacing blast furnace cooling walls without damaging furnace shells and replacing method thereof

Abstract

The invention discloses a device for replacing blast furnace cooling walls without damaging furnace shells and a replacing method thereof, and belongs to the technical field of blast furnace construction. The device comprises a hoisting ring beam, and the outer ring of the hoisting ring beam is provided with a temporary supporting part; the outer side of the temporary supporting part is provided with a blast furnace body, a furnace throat is arranged at the upper part of the blast furnace body, and a furnace throat steel brick is laid on the inner wall of the furnace throat; and a movable hanging plate is arranged in the interior of the blast furnace body, a furnace body platform is arranged outside the blast furnace body, and a slow-acting winch is fixedly installed on the table surface of the furnace body platform. According to the device and the method, the movable hanging plate is assembled in the blast furnace body, the hoisting ring beam is assembled on the movable hanging plate,the hoisting ring beam is erected on the steel brick, so that construction can be carried out; and when overhaul is carried out, the furnace shells and the cooling walls of corresponding position ofthe blast furnace are not required to be damaged, and the extra furnace shells and the cooling walls are prevented from being replaced; the overhaul efficiency is effectively improved, the overhaul cost is saved, the construction intensity is reduced, the overhaul period is shortened, and the overhauling quality is guaranteed.

Description

technical field [0001] The invention relates to the technical field of blast furnace construction, in particular to a device for replacing a blast furnace stave without destroying the furnace shell and a replacement method thereof. Background technique [0002] In recent years, with the development of blast furnace ironmaking technology, the volume of blast furnaces has become larger and larger, and blast furnaces with a volume of several thousand cubic meters can be seen everywhere. During the overhaul of blast furnaces, the cooling stave of the blast furnace is the key point in construction and also a difficult point in construction, which plays a key role in construction organization, process connection and construction quality. The staves of blast furnaces are generally laid from the bottom of the furnace to the position of water-cooled steel bricks in the furnace throat, with a total of more than ten floors, each layer has dozens of staves, and each stave weighs about 1...

AI Technical Summary

Problems solved by technology

The disadvantage is that the method of dismantling multiple staves and installing frame-type support lifting tools not only destroys the stave at the location where the spreader is installed, but also requires customizing staves and furnace shells that do not need to be replaced, which not only increases the maintenance cost, but also prolongs the maintenance. time, and the furnace shell can only be welded on one side, and the iron filings cannot be jointed between the staves, which increases the hidden danger of stave damage at this position and affects the quality of maintenance

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