Resourceful treatment method for incinerator slag and flying ash

Abstract

The invention provides a resourceful treatment method for incinerator slag and flying ash. The incinerator slag and the flying ash can be treated with low cost; and meanwhile, the income can be increased, and sustainable development of environment-friendly treatment enterprises can be facilitated. According to the technical scheme, after the incinerator slag and flying ash to be treated are matched with mixed raw materials, the mixture is fed into a high-temperature smelting device, after the incinerator slag, the flying ash and the mixed raw materials are subjected to high-temperature smelting, glass slag is formed and discharged, and the glass slag is common solid waste and can be used for brick making, road building, sand blasting, rust removal and the like. On the basis of a high-temperature smelting device, chlorine and heavy metal in flue gas are promoted to be combined to enter into a gas phase in a high-temperature smelting mode and then enter into a subsequent treatment procedure along with the smelted flue gas. Smelting flue gas is cooled and solidified into a metal chloride product through a waste heat recovery process, a quenching cooling process and a dust removal process, and the metal chloride product serves as a raw material product in the metal recovery industry for resource utilization.

Description

technical field

[0001] The invention relates to the technical field of solid waste incineration treatment, in particular to a method for resourceful disposal of incineration slag and fly ash. Background technique

[0002] Industries such as waste incineration power generation and hazardous waste incineration disposal produce a large amount of incineration residue and fly ash, which contain a large amount of dust, SOx, HCl, NOx, heavy metals, dioxins and other pollutants. For the current disposal of incinerator slag / fly ash, many companies are dealing with it through the idea of ​​harmlessness.

[0003] Harmless is mainly through chelation curing (mixing curing agent and fly ash to produce a new substance - solidified body, so that harmful components in hazardous waste are blocked in the solidified body, without the ability to disperse pollution ) or chemical agent stabilization method (with the aid of the chemical reaction of chemical agents, the poisonous level of toxic an...

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