Lifting appliance for installing last furnace shell

Abstract

The invention relates to a lifting appliance for installing a blast furnace shell. The lifting appliance (1) is in equilateral triangle shape; a three-side support (6) is connected through angle connecting plates (5); simultaneously, the three angle connecting plates (5) are connected with three suspenders (4); each suspender (4) is provided with a batten plate (3) and is connected with the angleconnecting plate (5); a lifting lug (7) is connected with the angle connecting plates (5) by passing through the suspenders (4) and is provided with an upper lifting hole (15) and a lower lifting hole(16); the two lifting holes for hoist are respectively provided with a double-faced reinforcing ring (8); the three-side support (6) is connected with a pull rod (10) through a connecting plate (9);the pull rod (10) and the suspender (4) are connected on a triangular central connecting plate (2); and the lifting appliance (1) is a stable structure on the whole. The invention has the advantages of simple structure, convenient operation and good overall mechanical property, greatly saves working hours, reduces the labor intensity of workers, and ensures the quality of the blast furnace shell.

Description

1. Technical field: [0001] The invention relates to a sling, in particular to a sling for blast furnace shell installation. 2. Background technology: [0002] In recent years, with the rapid development of technology in the field of blast furnace ironmaking in my country, the volume of new blast furnaces in major steel mills has become larger and larger, which has increased the difficulty of blast furnace installation. In the blast furnace installation, the installation of the furnace shell is the focus and difficulty of the construction, which plays a key role in the effective connection of the process and the shortening of the construction period. At present, due to its large structure and appearance, the furnace shell of the blast furnace needs to be installed in multiple belts by a large crane. During installation, multiple lifting points are set on the furnace shell. The head is directly connected for hoisting, and after the hoisting is in place, it is assembled and we...

AI Technical Summary

Problems solved by technology

The disadvantage is that the horizontal component force generated by the tension of the hoisting rope is likely to cause the deformation of the furnace shell. After the deformation, it needs to be corrected before it can be assembled, which increases the difficulty of high-altitude operations, increases the labor intensity of workers, and lengthens the construction period and costs. At the same time, the shell It is difficult to guarantee the overall and appearance quality

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