Distillation: apparatus – Apparatus – Systems
Patent
1975-12-02
1977-10-11
Tayman, Jr., James H.
Distillation: apparatus
Apparatus
Systems
202117, 202129, 202131, 202136, 202216, 201 27, 201 36, 201 33, 201 25, 432110, 432113, 432117, 34141, 34135, 23279, C10B 4906
Patent
active
040533654
ABSTRACT:
A modified rotary kiln suitable for calcining normally solid carbonaceous material, having adapted thereto at one end a firing crown and means for admitting combustible gases or liquids and air; a feeding means for such solid carbonaceous material to be calcined adapted to the other end of the kiln; and wherein the combustion gases and solid materials travel countercurrently in the kiln during calcination, wherein: at least one series of at least two tuyeres passes through the wall of the kiln symmetrically spaced to and at about a point longitudinally in the middle one-half of the longitudinal axis of the kiln; each tuyere terminating within the kiln through a nozzle on the side of the tuyere at a height sufficient for the discharge of exterior oxidizing gases passing therethrough at a point above the bed of the carbonaceous material in the kiln, directing the exterior oxidizing gases toward the feed end at about the same acute angular direction from a line passing through the nozzle and parallel to the longitudinal axis of the kiln; at least one shroud which surrounds the kiln and is movably mounted with respect to the kiln wall, thereby allowing the kiln to rotate therewithin, each tuyere terminating on the outside of the kiln within the shroud; means at the junction of each tuyere with the interior surface of the kiln lining to cause forced movement of the carbonaceous material past the tuyeres; and means to cause air or other oxygen-containing gases to flow into the shroud, through the tuyeres, and into the kiln.
REFERENCES:
patent: 1503193 (1924-07-01), Lindhard
patent: 1564730 (1925-12-01), Walden
patent: 2132709 (1938-10-01), Vanderwerp
patent: 2813822 (1957-11-01), Collier
Great Lakes Carbon Corporation
Peters Carl F.
Tayman, Jr. James H.
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