Fluidized bed waste incineration treatment system

Abstract

The invention provides a fluidized bed waste incineration treatment system. Waste is combusted in a fluidized bed waste incineration furnace. Bed materials are carried by smoke to leave a hearth, and enter a cyclone separator. One part of the bed materials are gathered by the cyclone separator and sent into a receiver. The other part of the bed materials leave the cyclone separator along with the smoke, pass through a tail flue and enter a dust remover. Active carbon is sprayed into an inlet of the dust remover so as to adsorb dioxin in the smoke. The active carbon and the bed materials are gathered by the dust remover and sent back into the hearth. The dioxin adsorbed by the active carbon is decomposed in the hearth at the high temperature, thereby losing toxicity. One part of the bed materials entering the receiver are sent back to the hearth, and the other part of the bed materials are discharged outwards after being cooled. The discharged bed materials do not pass through a dioxin low-temperature resynthesis area of the tail flue, so that the dioxin content is low. By the adoption of the fluidized bed waste incineration treatment system, the emission of dioxin in the discharged smoke and discharged dust of waste incineration is reduced, and thus the negative influences of waste incineration on the environment are reduced.

Description

technical field [0001] The invention relates to the fields of garbage incineration and pollutant control, in particular to a fluidized bed garbage incineration treatment system. Background technique [0002] Waste incineration has obvious advantages in terms of reduction, harmlessness and resource utilization, and has been widely used in the European Union and Japan. With the development of urbanization in China, the land for landfill is decreasing, and more and more municipal waste needs to be incinerated. [0003] Garbage contains organic matter and chlorine elements, and the flue gas produced by waste incineration contains halogenated compound dioxins, which are a type of very toxic organic matter, and it is necessary to strictly control the generation and emission of dioxins during the process of waste incineration treatment . According to the formation mechanism and physical and chemical properties of dioxins, China’s “Standards for Pollution Control of Domestic Waste...

AI Technical Summary

Problems solved by technology

[0011] The technical problem to be solved by the present invention is to provide a fluidized bed waste incineration treatment system, which solves the problem of high dioxin concentration in the fly ash produced in the current waste incineration process, and does not discharge the fly ash collected by the dust collector Instead of being sent to the ash warehouse, it is sent to the incinerator for incineration, so that the dioxins in the fly ash are pyrolyzed

Images