Novel process method of co-processing iron hazardous waste briquettes by blast furnace

Abstract

The invention discloses a novel process method of co-processing iron hazardous waste briquettes by a blast furnace. The novel process method comprises the following steps of: firstly, pretreating iron hazardous wastes hw49, hw08 and hw09, and mixing and briquetting the iron hazardous wastes hw49, hw08 and hw09 to enable the iron hazardous wastes meet the use requirements; and secondly, mixing the pretreated iron hazardous wastes hw49, hw08 and hw09 with ironmaking raw materials, and finally enabling a mixture to enter the blast furnace. According to the novel process method of co-processing the iron hazardous waste briquettes by the blast furnace, an original blast furnace process does not need to be changed, the treatment process technology and operation requirements are simple, and the novel process method has the advantages of thorough combustion and processing, low processing cost and simple process and operation.

Description

technical field [0001] The invention relates to the field of chemical production, in particular to a new process for co-processing iron hazardous waste briquettes with a blast furnace. Background technique [0002] Packaging containers for mineral oil, paint, emulsion, organic solvents and other substances are discarded containers contaminated with toxic and flammable hazardous waste. The oily metal shavings produced during the honing, grinding, and grinding processes of the metal product machining industry, as well as the machining process using cutting oil or chip fluid, are hazardous wastes and belong to hazardous wastes. Here, it specifically refers to iron waste paint buckets and oily iron metal chips. The composition is mainly Fe, containing other contaminants. The main composition is consistent with the molten iron produced by the blast furnace. [0003] Introduction to existing disposal technologies: [0004] Resourceful: [0005] hw49 iron waste barrels are refur...

AI Technical Summary

Problems solved by technology

Disadvantages: The waste barrels must be relatively intact, and there is basically no recycling value for deformed or damaged waste barrels; the amount of sewage is large, the efficiency is low, the processing capacity is small, and the production capacity is low

Disadvantages: the process is long, the waste barrel must be relatively intact, the processing capacity is small, the efficiency is low, the processing capacity is small, and the economic benefits are average

Disadvantages: About 2% of the leachate needs to be disposed of by a professional disposal unit, which wastes the characteristics of iron packaging containers

Disadvantages: more than 50% of iron shavings need to be added to form briquetting, and more than 50% of centrifuge leachate needs to be still hazardous waste, which needs to be disposed of by professional disposal companies

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