Process for recycling waste heat of slag flushing water vapor and dispersing fog and equipment adopted in same

Abstract

The invention discloses a process for recycling waste heat of slag flushing water vapor and dispersing fog and equipment adopted in the same. The process comprises the following steps: (1), introducing slag flushing water vapor into a waste heat-recycling and fog-dispersing tower, condensing part of the water vapor by virtue of a water vapor condenser, and recycling latent heat of water vapor; (2), continuously introducing the uncondensed vapor into an air cooling device, condensing and recycling condensed water, conveying the rest of un-recycled vapor into an air-mixing and fog-dispersing channel, and mixing the reset of un-recycled vapor with hot air produced by the air cooling device to form unsaturated vapor, so that water fog is dispersed; (3), exhausting the obtained unsaturated vapor into atmosphere. The process adopted in the invention is novel and unique, and outstanding in effect; the adopted equipment is compact in structure, small in floor area, modularized in design, beneficial to installation, maintenance and cost decrease; meanwhile, in a practical production process, heat of most of water vapor can be recycled, and water fog pollution can be eliminated, so that not only can good economic benefits be generated, but also requirement of protecting the environment is achieved.

Description

technical field [0001] The invention relates to the field of waste heat recovery and utilization of slag flushing water in iron and steel plants, and more specifically relates to a process for recovering waste heat from slag flushing water vapor and eliminating fog and the equipment used. Background technique [0002] A large amount of high-temperature slag is produced after blast furnace ironmaking in iron and steel plants, which needs to be cooled by slag washing water. Usually, the INBA method is used to wash slag for blast furnace slag treatment. The INBA method is a blast furnace slag treatment method. The slurry pump is input to the drum to realize dehydration and finally obtain the water slag. This method is a patented technology of Paul Wurth. Closed circulation of slag water, less water suspended matter, less wear of pumps and pipelines, no explosion hazard, high safety, and the system can also safely granulate slag when the iron content in the slag is high. [000...

AI Technical Summary

Problems solved by technology

[0006] The present invention discloses a process for recovering waste heat from slag flushing water vapor and eliminating fog and the equipment used therefor. In the process, waste heat recovery is carried out on the steam of flushing slag, and the technical problem of eliminating white mist at the same time, the present invention not only has considerable economic benefits, but also solves the environmental protection problem

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