Rotating rabbled roof drying and heating furnace

Details Rotating rabbled roof drying and heating furnace Rotating rabbled roof drying and heating furnace

1986-03-25

1987-06-02

Yuen, Henry C.

Heating

Work chamber having heating means

Having means by which work is progressed or moved mechanically

432153, F27B 916

Patent

active

046699775

ABSTRACT:
Apparatus for drying and heating wet particulate materials comprises a furnace with stationary circular hearth and sidewalls and a rotating roof. The hearth is perforated to receive hot gases from a plenum chamber below it, which gases are drawn off from the hearth through conduit openings out of its sidewalls, the major portion of the gases are externally heated, and are returned to the hearth through the plenum chamber. A feed bin is positioned on the roof at its center and through a conveyor feeds charged material onto the hearth through an opening in the roof near its outside edge. Rabbles are mounted in the roof to move the charge toward the center of the hearth as the roof rotates. From the center of the hearth a soaking pit extending through the plenum chamber discharges the heated material.

REFERENCES:
patent: 1549379 (1925-08-01), Pike
patent: 1603442 (1926-10-01), Balz
patent: 1836002 (1931-12-01), Balz
patent: 3448012 (1969-06-01), Allred
patent: 3740184 (1973-06-01), Oleszko
patent: 3763011 (1973-10-01), Allred
patent: 4046086 (1977-09-01), von Dreusche, Jr.
patent: 4215981 (1980-08-01), von Dreusche, Jr.

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