A Plasma Reactor and A Spraying Device for treating Steam Generator Chemical Cleaning Solutions in Nuclear Power Plants

摘要

The present invention can safely and effectively treat liquid wastes or toxic wastes of concentrated or non-condensed waste liquid containing chelating substances such as EDTA generated during chemical cleaning of a nuclear power plant steam generator by high-temperature incineration using plasma, By using the jet nozzle, the chemical cleaning waste liquid is finely sprayed from the center of the high-temperature plasma jet, and the primary and secondary combustion furnaces for effectively using the high-temperature plasma jet are integrally implemented, It is possible to improve the spraying efficiency of the waste solution and simplify the plasma reaction, and by constructing a small chemical cleaning waste liquid processing device by improving the structure of the waste liquid spraying device and the plasma reactor that can efficiently use the plasma heat source, Tough radioactive liquid waste As middle and on the large liquid waste plasma to cope with the waste incinerators, chemical washing waste liquid treatment of nuclear power plant steam generator device,; A liquid waste supply device comprising a non-transfer type plasma torch for discharging gas supplied from the working gas supply device as a plasma, a liquid waste storage device including a waste liquid storage tank containing a waste liquid to be treated, a pump, and a flow meter, A jet nozzle for jetting the liquid waste supplied from the liquid waste supply device to the plasma, an integrated reaction furnace composed of three circular reactors for the primary combustion and a rotary reactor for the secondary combustion, A waste gas purifier for discharging the generated exhaust gas to the atmosphere after the final treatment; and a cooling water passage for cooling the cooling water, which is one of the above-described circular reaction furnaces, And a cooling water supply device for supplying the cooling water.;As a plasma reaction, a jet nozzle, a chemical cleaning waste solution, EDTA,