System and method for utilizing nuclear energy to conduct waste pyrolysis gasification treatment

Abstract

The invention discloses a system and method for utilizing nuclear energy to conduct waste pyrolysis gasification treatment. The system comprises a waste pyrolysis gasification system, a nuclear powersystem and a steam power generation system; the waste pyrolysis gasification subsystem comprises a waste conveying chamber, a primary vaporization chamber, a high-temperature gasification chamber, a filtration tower, a washing tower and a desulfurization tower; an outlet of the waste conveying chamber is communicated with an inlet of a heat absorption side of the primary vaporization chamber, an outlet of the heat absorption side of the primary vaporization chamber is communicated with an inlet of a heat absorption side of the high-temperature gasification chamber, and an outlet of the heat absorption side of the high-temperature gasification chamber is communicated with an inlet of the desulfurization tower through the filtration tower and the washing tower in sequence. The system and method achieve pyrolysis gasification treatment on waste with nuclear power as a heat source, the energy consumption and cost are low, and meanwhile no harmful substances are generated in the pyrolysis process.

Description

technical field [0001] The invention belongs to the technical field of nuclear power, and relates to a system and method for pyrolysis and gasification treatment of garbage by using nuclear energy. Background technique [0002] At present, the municipal solid waste treatment methods in my country mainly include sanitary landfill, composting and direct incineration. Among them, sanitary landfill and composting have the direct disadvantages of polluting soil and requiring a large amount of land. Although direct incineration is beneficial to waste reduction, However, highly toxic organic substances such as dioxin will be produced during the incineration process, which will cause irreversible damage to the natural environment on which human beings depend and have a certain impact on local human life. In view of the disadvantages of the above several treatment methods, foreign R&D institutions have proposed a waste gasification treatment scheme. The principle is to use high-temper...

AI Technical Summary

Problems solved by technology

The temperature of high-temperature pyrolysis of garbage needs to reach 600-1000°C. Foreign countries have carried out plasma gasification garbage treatment technology. This technology is to generate a plasma arc through a high-voltage current in a closed room filled with nitrogen and other inert gases, thereby generating a temperature of 900-1600°C. High temperature environment is used to meet the conditions of waste pyrolysis and gasification, but the plasma gasification technology has the disadvantages of unstable process and relatively expensive plasma power consumption. high problem

Due to the high cost of plasma gasification technology and the large difference in the composition of domestic and foreign municipal solid waste, it is impossible to simply introduce foreign plasma gasification technology to realize the commercialization of waste treatment, and it is necessary to seek a new energy source supply system

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