Patent ID: 8328993

Claim:
A pyrolysis reactor for processing municipal and domestic wastes comprising: a pyrolysis chamber, a reactor dual-gate type loading mechanism for loading the pyrolysis chamber with wastes without access of oxygen to the pyrolysis chamber, a reactor dual-gate type unloading mechanism for unloading the pyrolysis chamber from solid residual products of pyrolysis without access of oxygen to the pyrolysis chamber, said pyrolysis chamber comprising: an inlet device, an outlet device, and a three-cavity retort comprising an elongated horizontally arranged hollow body having two lower parallel and substantially cylindrical cavities and an upper syngas guiding chamber with vertical walls; two waste-feeding screws that have threads with outer surfaces and are located in said cavities, respectively, said two screws being tapered in shapes with a taper angle that decreases the diameters of the waste-feeding screws from said inlet device to said outlet device, said waste-feeding screws having a gap between their outer surfaces, wherein said waste-feeding screws converge toward each other with a convergence angle from the inlet device to the outlet device.