Waste heat recovery device for billets produced by continuous casting machine

Abstract

The invention provides a waste heat recovery device for billets produced by a continuous casting machine. The device comprises a withdrawal and straightening unit front section radiant heating surface, a pre-cutting section radiant heating surface, a post-cutting section radiant heating surface, and a pusher section radiant heating surface through modular design, a forced circulating water pump, a steam-water separation unit and the like. The arrangement mode of the withdrawal and straightening unit front section radiant heating surface, the pre-cutting section radiant heating surface and the post-cutting section radiant heating surface which are at a higher temperature is that an arch-shaped cover type radiant heating surface is arranged independently for each roller table. Shielding type radiant heating surfaces are arranged for the withdrawal and straightening unit front section, the pre-cutting roller section, the post-cutting roller section and the pusher section respectively; and high-temperature billets are isolated from the environment while radiation heat of the billets is absorbed, heat radiation of the high-temperature billets to the environment is cut off thoroughly, therefore workshops can be cooled effectively, and the working environment is improved substantially.

Description

technical field [0001] The invention is used in the technical field of the metallurgical industry, and designs a waste heat recovery device for hot billets of continuous casting machines. Background technique [0002] In today's energy shortage, energy saving, consumption reduction and emission reduction are the top priorities for the development of all enterprises, especially steel enterprises with large energy consumption. At present, when most iron and steel enterprises produce steel slabs, the entire process of the steel slab from the exit of the continuous casting machine to the end of the cooling bed section is completely exposed to the workshop environment, without any shelter or waste heat recovery measures. During the billet production process, the temperature of the billet exiting the continuous casting machine is as high as 860°C, and the temperature can only be lowered to about 550°C after passing through the pre-cutting roll section, steel cutting section, and p...

AI Technical Summary

Problems solved by technology

[0003] Technical problem: The present invention aims at waste heat waste and deterioration of working environment caused by the exposure of the hot steel billet of the continuous casting machine in the existing iron and steel enterprises, and provides a kind of waste heat that can be effectively recovered and reused, modular design, component replacement and maintenance Convenient billet waste heat recovery device

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