Ring Crane for Blast Furnace Refractory Brick Construction

Abstract

The invention discloses an annular crane for construction of refractory bricks of a blast furnace. The crane consists of self-lifting system lifting steel wire ropes, lever blocks, self-lifting system safety steel wire ropes, an operation platform sling, fixing devices, circular rails, a rotating mechanism, a rotating trolley, a cargo boom, a horizontal walking trolley and a lifting device, wherein the platform sling is used as a body for lifting the annular crane and fixing the circular rails, the rotating mechanism and the cargo boom, and is fixed by the self-lifting system lifting steel wire ropes and the self-lifting system safety steel wire ropes in the perpendicular direction; the numbers of groups of the self-lifting system lifting steel wire ropes and the self-lifting system safety steel wire ropes are determined according to the size of the platform sling, and the self-lifting system lifting steel wire ropes and the self-lifting system safety steel wire ropes are fixed by the fixing devices in the horizontal direction; and the rotating mechanism is mounted in the middle of the platform sling. The annular crane disclosed by the invention has the advantages that the platform sling body is assembled by single rod pieces, and can drive the whole annular crane to automatically rise up by the design of self-lifting devices, so that the requirement that carbon bricks of a hearth and the refractory bricks on the furnace wall reach higher places is met.

Description

technical field [0001] The invention belongs to the technical field of building refractory bricks for metallurgical ironmaking blast furnaces, and in particular relates to a ring crane for the construction of refractory bricks for blast furnaces. Background technique [0002] Due to the development of metallurgical technology, the volume of the ironmaking blast furnace has been made larger and larger, from the original small blast furnace to 2500m3, and then to 4000m3, and even to 5000m3 blast furnace, which not only reduces the cost of ironmaking, but also saves energy and protect the environment. As the environmental requirements become higher and higher, small blast furnaces with high energy consumption and serious pollution will gradually be eliminated and replaced by large blast furnaces. Due to the small size and light weight of refractory bricks in small blast furnaces, the transportation and masonry problems of refractory bricks can be solved by labor and small comm...

AI Technical Summary

Problems solved by technology

Due to the small size and light weight of refractory bricks in small blast furnaces, the transportation and masonry problems of refractory bricks can be solved by labor and small common machinery. For large blast furnaces, the weight of hearth carbon bricks reaches about 1.5t, or even heavier. It is necessary to use special hoisting machinery to solve the transportation and hoisting problems of large carbon bricks, but at present, due to the particularity of its technology, these special hoisting machinery cannot be purchased in the market

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