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

A sealed plasma melting furnace for treating low- and intermediate-level radioactive waste, the sealed plasma melting furnace comprising:

• a waste supply chamber communicatively provided with a hopper at one side thereof and vertically stacking the waste input from the hopper;
• a pyrolysis chamber channel provided at one side of the waste supply chamber and communicatively coupled with the waste supply chamber;
• a pyrolysis chamber provided at one side of the pyrolysis chamber channel and having a burner mounted thereon;
• a melting chamber channel provided at one side of the pyrolysis chamber, guiding the waste transferred from the pyrolysis chamber communicatively provided therewith to fall down, and having a liquid waste injection nozzle on one side thereof;
• a melting chamber provided at one side of the melting chamber channel, having a plasma torch mounted thereon, and formed and provided with a furnace interior portion accommodating a molten substance on a bottom surface thereof;
• a processed molten substance discharge channel provided at a lower portion of the melting chamber and discharging the processed molten substance generated in the melting chamber;
• a secondary combustion chamber channel provided at one side of the pyrolysis chamber and inducing and exhausting an off-gas flow generated in the melting chamber;
• and
• a secondary combustion chamber provided at one side of the secondary combustion chamber channel and inducing complete combustion of the off-gas input from the secondary combustion chamber channel communicatively provided therewith.