Lifting appliance for lifting tundishes

Abstract

The invention relates to a lifting appliance for lifting tundishes. The lifting appliance comprises lifting ropes, a lifting appliance beam, long lifting rings, a counterweight, a hollow tundish lifting main shaft and full tundish lifting lugs, wherein the full tundish lifting lugs are welded with the four corners of the upper surface of the lifting appliance beam; a through hole is formed in the middle of the lifting appliance beam, and the hollow tundish lifting main shaft is fixedly connected with the through hole; a shaft end baffle is arranged at the shaft end of the hollow tundish lifting main shaft; one ends of the lifting ropes are fixedly connected with the full tundish lifting lugs or the hollow tundish lifting main shaft through shackles; through holes are separately formed in the four corners of the bottom side of the lifting appliance beam, and the through holes are fixedly connected with one ends of the long lifting rings; supports are symmetrically welded on the same side of the lifting appliance beam; the counterweight comprises a plurality of adjusting cushion blocks, nuts and fixing bolts; U-shaped clamping grooves are formed in the middles of the bottom sides of the adjusting cushion blocks, and the inner diameters of the U-shaped clamping grooves are matched with the outer diameters of the supports; and the adjusting cushion blocks are connected with the supports through clamping, a plurality of threaded holes are symmetrically formed in the two sides of the U-shaped clamping grooves, and the adjusting cushion blocks are fixedly connected with the supports.

Description

technical field [0001] The invention belongs to the metallurgical industry, and in particular relates to a spreader for lifting a tundish. Background technique [0002] The tundish is mainly used to receive the molten steel in the ladle, and then distribute the molten steel to the intermediate storage container of the crystallizer. It has the functions of steel storage, steady flow, buffering and slag separation. It can store a certain amount of molten steel to ensure that when the ladle is replaced It can continue pouring and realize multi-furnace continuous pouring. [0003] In order to reduce the influence of the long nozzle impact area on the tundish flow field and enhance the buffering and temperature flow effects of the tundish, the current billet tundish is made into a T shape, and the distance between the shroud impact area and the tundish nozzle is increased , resulting in severe eccentric loading of the tundish itself. When the accident state requires hoisting the...

AI Technical Summary

Problems solved by technology

[0005] At present, the six-strand tundish is full of molten steel and weighs about 100 tons. When the tundish is lifted in an accident state, the molten steel with a temperature of more than 1,000 degrees is in the tundish, and it must be removed from the production area quickly. If the shaking is severe, it is easy to overflow the molten steel. turn over, leading to very serious consequences

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