Construction method of lifting carbon bricks at blast furnace bottom

Abstract

The invention relates to a construction method for lifting carbon bricks at the blast furnace bottom, which belongs to the technical field of blast furnace bottom masonry construction. The construction method comprises the following steps: making a lifting beam (1) from seamless steel pipes; both ends of the upper surface of the lifting beam (1) are welded with two upper palm plate lifting rings (2), and both ends of the lower surface of the lifting beam (1) are welded with four lower palm plate lifting rings (3); upper buckles (4) are installed by utilizing the lower palm plate lifting rings (3) on the two ends of the lifting beam (1), a wire rope (5) is hung on each buckle (4), and an expandable lifting tool (6) is hung on the lower end of each wire rope (5) by the buckle (4), thereby achieving the lifting conditions for lifting the carbon bricks; and the expandable lifting tool (6) is inserted into a lifting hole in a carbon brick (7) at the furnace bottom, and an electric hoist is lifted to lift the carbon brick (7), thereby completing the lifting of the carbon brick at the furnace bottom. The invention solves the problems of backward technique, unstable lifting, easy rotation of carbon bricks, easy collision with carbon brick edges, and the like, accelerates the construction progress, shortens the construction period and enhances the work efficiency.

Description

technical field [0001] The invention belongs to the technical field of blast furnace bottom carbon brick masonry construction, and in particular relates to a hoisting method for blast furnace bottom carbon brick masonry construction, and is especially suitable for blast furnace bottom carbon bricks in blast furnace new construction, expansion and overhaul projects. During masonry construction, lifting and transportation of furnace bottom carbon bricks. Background technique [0002] At present, during the construction of carbon bricks at the bottom of the blast furnace, the lifting method adopted is generally: utilize steel wire ropes to directly hang vacuum suction cups to lift carbon bricks. When using, buckle the two vacuum suckers on the surface of the carbon brick first, and directly hang the steel wire rope above the vacuum sucker; suck out the air in the vacuum sucker through the vacuum pump, and after the sucker is adsorbed on the surface of the carbon brick, use an e...

AI Technical Summary

Problems solved by technology

The "balanced spreader" is used to lift the carbon bricks at the bottom of the furnace, which solves the problems of backward technology, unstable lifting, easy rotation of carbon bricks, and easy bumping of carbon brick edges in the traditional lifting of carbon bricks, which speeds up the construction progress and shortens the construction period The construction time is improved, and the work efficiency is improved

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