Sealed plasma melting furnace for treating medium- and low-level radioactive waste

Abstract

The present invention relates to a sealed plasma melting furnace (10) for treating medium- and low-level radioactive wastes, which is capable of batch-processing the medium- and low-level radioactivewastes regardless of the types thereof according to the characteristics of each waste in a sealed state to thus minimize secondary pollutants. The sealed plasma melting furnace comprises: a waste supply chamber (100), provided with a hopper (110) on one side thereof in communication therewith, in which waste introduced from the hopper (110) is stacked in a vertical direction; a pyrolysis chamber channel (210) provided on one side of the waste supply chamber (100) and communicated with the waste supply chamber (100); a pyrolysis chamber (200) provided on one side of the pyrolysis chamber channel (210) and having a burner mounted thereon; a melting chamber channel (310), provided on one side of the pyrolysis chamber (200), which guides the waste conveyed from the pyrolysis chamber (200) communicating therewith and has a nozzle (311) for injecting liquid waste on one side thereof; a melting chamber (300), provided on one side of the melting chamber channel (310), which has a plasma torch(320) mounted on one side thereof and has a furnace inside for accommodating a molten material formed at a bottom surface thereof; a molten processed product discharging channel (350), provided at a lower portion of the melting chamber (300), for discharging the molten processed product generated in the melting chamber; a secondary combustion chamber channel (410), provided on one side of the pyrolysis chamber (200), for inducing and exhausting a flow of an exhaust gas generated in the melting chamber (300); and a secondary combustion chamber (400), provided on one side of the secondary combustion chamber channel (410), for inducing a complete combustion of the exhaust gas introduced from the secondary combustion chamber channel (410) communicating therewith.

Description

technical field [0001] The present invention relates to a closed type plasma melting furnace for processing low and medium level radioactive waste, and more particularly relates to a large amount and safe processing of low and medium level radioactive waste produced by an atomic power plant regardless of its physical and chemical properties. A closed plasma melting furnace for processing low- and medium-level radioactive waste. Background technique [0002] Most of the radioactive waste generated by nuclear power plants is low-level waste, and the solid low-level radioactive waste includes miscellaneous types such as metals and thermal insulation materials produced by the operation of power plants or regular inspections of liquid wastes. solid waste, etc. [0003] Miscellaneous solid wastes generated in radioactive management areas are classified into combustible miscellaneous solid wastes such as cotton or paper, vinyl plastic, rubber, plastic, wood, etc., and iron or glas...

AI Technical Summary

Problems solved by technology

Since heat loss occurs when each device is heated separately, and there is a possibility of dangerous situations such as leakage or scattering of radioactive materials due to the installation of a large number of accessory devices, in order to ensure safety, it is necessary to develop a device to improve these problems

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