Waste incineration system and method based on selective catalytic denitration plasma integration

Abstract

The invention discloses a waste incineration system and method based on selective catalytic denitration plasma integration. The waste incineration system comprises a waste incinerator, a high-temperature heat exchanger, a high-temperature dust collector, a selective catalytic denitration plasma integration device, a low-temperature heat exchanger and a flue gas purification device. Dust collectedby the high-temperature dust collector does not contain low-temperature synthesized dioxins, and the toxicity is small. Flue gas dust formed after high-temperature dust removal is low in concentration, abrasion to a SCRCP device catalyst is small, pollution is also small, the service life of the catalyst is prolonged and chemical reaction efficiency is improved. Within the low-temperature synthesis temperature interval of 200-400 DEG C of the dioxins, the flue gas dust concentration is low, the quantity of dust catalysts required for dioxin low-temperature synthesis is decreased, the concentration of flue gas carbon granules and carbonaceous organic materials is low, matter required for dioxin low-temperature synthesis lacks, and the dioxin low-temperature synthesis amount is greatly reduced.

Description

technical field [0001] The invention relates to waste incineration technology, in particular to a waste incineration system and method based on selective catalytic denitrification plasma integration. Background technique [0002] Waste incineration has the advantages of reduction, harmlessness, and obvious resource utilization, and has been rapidly popularized and applied. However, in the process of garbage incineration, not only nitrogen oxides are produced, but also highly toxic substances, dioxins (Dioxins), are produced, threatening the living environment of human beings. In the process of waste incineration, the formation methods of dioxin include: formation in the furnace and low-temperature synthesis in the tail flue. [0003] Through the "3T+E" process, that is, controlling: incineration temperature, residence time of flue gas in the furnace, gas-solid turbulence of flue gas and excess air volume, the formation of dioxins in the furnace can be effectively controlled...

AI Technical Summary

Problems solved by technology

However, in the process of waste incineration, not only nitrogen oxides are produced, but also highly toxic substances, dioxins (Dioxins), threaten the living environment of human beings.

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