Environmental protection slag pouring device for hot pouring steel slag

Abstract

The invention provides an environment-friendly slag-splashing device for hot-splashing steel slag, which comprises: a plurality of slag-splashing tanks, a smoke collection cover is provided on the top surface of each of the slag-splashing tanks, and a A water pipe network, the water pipe network is located below the flue gas collection cover, and the water pipe network is provided with a plurality of sprinklers; a fan is located on one side of the plurality of slag dumping tanks, and the fan is connected to the plurality of A washing tower and a bag filter are arranged in parallel between the slag-removing pipes, one end of the dust-removing pipe is connected to the suction port of the fan, and the other end of the dust-removing pipe is connected to a plurality of the slag-removing pipes. connected to the fume collection hood. The invention can process various steel slags, has the advantages of energy saving, environmental protection, zero discharge, low operation cost and wide application range.

Description

technical field [0001] The invention relates to a steel slag processing device in the field of steelmaking, in particular to an environment-friendly slag pouring device for hot pouring steel slag. Background technique [0002] Steel slag is a variety of furnace slag discharged in the steelmaking process, that is, the by-product of the steelmaking process. It is a major solid waste in the steel industry, and its amount is about 10% to 15% of the crude steel output. With the global crude steel output of more than one billion tons per year, about two to three hundred million tons of steel slag is produced every year. Although steel slag is non-toxic, a large amount of stockpiling and landfilling will cause slag overflow and cause environmental pollution. , waste of resources and other issues, therefore, whether it is from the perspective of social benefits or the self-interest of the enterprise, steel slag treatment is indispensable. [0003] Existing hot steel slag treatment ...

AI Technical Summary

Problems solved by technology

[0002] Steel slag is a variety of furnace slag discharged in the steelmaking process, that is, the by-product of the steelmaking process. It is a major solid waste in the steel industry, and its amount is about 10% to 15% of the crude steel output. With the global crude steel output of more than one billion tons per year, about two to three hundred million tons of steel slag is produced every year. Although steel slag is non-toxic, a large amount of stockpiling and landfilling will cause slag overflow and cause environmental pollution. , waste of resources and other issues, therefore, whether it is from the perspective of social benefits or the self-interest of the enterprise, steel slag treatment is indispensable

[0003] Existing hot steel slag treatment includes the following forms: hot pouring method, pit stewing method, granulation method and air cooling method. Although these four methods can effectively realize the separation of slag and iron, they also have their own shortcomings: ( 1) Pit braising method: It needs to build a fixed underground hot braising pit with embedded steel billets. The hot braising effect is better, but when turning slag into the hot braising pit, a lot of dust will be generated, and a large amount of water needs to be sprayed for treatment , there are disadvantages such as large construction investment, heavy slag digging and dust, large amount of subsequent crushing and processing, and only one kind of steel slag can be treated with water; (2) Granulation method: it flows liquid steel slag evenly into the granulator, and has However, it is only suitable for processing liquid steel slag, solid steel slag cannot be processed, and the equipment wears heavily and is prone to explosion; (3) air cooling method: it is used to process steel slag that is not suitable for spraying water treatment, such as Refining slag, stainless steel slag, etc., but they have disadvantages such as long cooling period, huge floor area, and large loss of slag container; (4) Hot splashing method: it is to dump the steel slag directly on the ground, and then spray water to turn it over Slag cooling has the characteristics of less investment and simple operation, but its slag splashing has large smoke, large amount of water vapor, and large water consumption, which is not conducive to environmental protection and energy saving

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