Rotary hearth pyrolyzer with tapered spreader roll

Furnaces – Refuse incinerator – Rotary grate movable about a vertical axis

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Details

222408, 110225, 110101CD, F23G 504

Patent

active

044521537

ABSTRACT:
A rotary hearth pyrolyzer is described as having a conically tapered roll for uniformly spreading waste material that is charged onto the hearth for pyrolyzation. The taper of the spreader roll is such that the linear speed at any point measured longitudinally of the roll corresponds to the speed of the rotary hearth at a point on the hearth opposite the point on the spreader roll. An angularly disposed scraper blade is positioned slightly downstream of the spreader roll, relative to the movement of the rotary hearth, and has a pair of marginal edges, one of which engages the spreader roll to remove waste material sticking thereto and the other of which edges terminates in spaced relation from the hearth to evenly spread or distribute waste material onto the hearth.

REFERENCES:
patent: 1104288 (1914-07-01), Beskow et al.
patent: 1993688 (1935-03-01), Specketer et al.
patent: 2896824 (1959-07-01), Sheldon
patent: 3671167 (1972-06-01), Nakano
patent: 3680503 (1972-08-01), Danielsson et al.
patent: 3985098 (1976-10-01), Myers et al.
patent: 4182246 (1980-01-01), Lombana et al.
patent: 4215981 (1980-08-01), von Dreusche, Jr.
patent: 4311102 (1982-01-01), Kolze et al.

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