Method for mounting blast furnace framework structure by utilizing transverse hoisting beam

Abstract

The invention relates to a method for mounting a blast furnace framework structure by utilizing a transverse hoisting beam, and is characterized in that firstly, the H-shaped transverse hoisting beam is prepared, and hoisting lugs are respectively welded on an upper flange plate and a lower flange plate of the transverse hoisting beam; before hoisting, a component ready for hoisting is welded with a hoisting lug and is connected at the lower side of the transverse hoisting beam through a steel wire rope; followed by, one end, being connected with the component, of the transverse hoisting beam is connected with a hook head of a 4000 t.m tower crane by a steel wire rope, the other end, being not connected with the component, of the transverse hoisting beam is connected with a hook head of the 4000 t.m tower crane by a steel wire rope and a guide chain, and the guide chain is pulled tightly; finally, the component is slowly hoisted; when the component is hoisted 100 mm away from the ground, hoisting is stopped, and the tensile force of the guide chain is adjusted, so that the transverse hoisting beam is kept horizontal, and after adjusting is finished, hoisting is continued and the component is mounted at a right position. The operation is simple; and through the transverse hoisting beam, the working radius of the tower crane is extended, the hoisting scope of the tower crane is enlarged, the construction cost is reduced, and the requirement of green construction is met.

Description

1. Technical field: [0001] The invention relates to a method for installing a blast furnace frame structure by using a transverse suspension beam, and belongs to the field of installation and construction of metal structures in metallurgical construction engineering. 2. Background technology: [0002] When installing the blast furnace frame structure, tower cranes are generally used to complete the hoisting of the components. When installing the 2# blast furnace of Baotou Steel’s new system, the blast furnace frame structure is installed on the 270° side of the blast furnace, and the horizontal distance from the center of the blast furnace is 27m. Complete the hoisting work of the components. The maximum hoisting radius of the main hook of the 4000t.m tower crane is 48.894m, and the maximum hoisting radius of the auxiliary hook is 51.894m. At this time, the maximum lifting weight of the auxiliary hook is 10t. The weights of the two beams are 5.099t and 4.442t respectively, ...

AI Technical Summary

Problems solved by technology

The maximum hoisting radius of the main hook of the 4000t.m tower crane is 48.894m, and the maximum hoisting radius of the auxiliary hook is 51.894m. At this time, the maximum lifting weight of the auxiliary hook is 10t. The weights of the two beams are 5.099t and 4.442t respectively, and the distances from the center of the tower crane are 55.6m and 57.1m respectively. The radius cannot be hoisted directly with a 4000t.m tower crane

For the two beams, the original plan planned to use a 500t truck crane to complete the hoisting work. Since the 500t truck crane needs to be transferred from the outside, the construction by this method will not only prolong the construction period, but also increase the construction cost

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