Drying and gas or vapor contact with solids – Apparatus – Gravity flow type
Patent
1978-04-27
1981-01-06
Camby, John J.
Drying and gas or vapor contact with solids
Apparatus
Gravity flow type
432 95, 432106, F26B 1712
Patent
active
RE0304697
ABSTRACT:
A preheater for particulate material comprising a cylindrical refractory lined vessel with top feed and exhaust offtake. The preheater diameter is enlarged below the offtake so that the sloping material forms an area surrounded by ports which receive hot gases from the kiln. The lower portion of the preheater is conical, leading toward a small central discharge point. This portion constitutes a soaking zone in which heat is allowed to penetrate the material.
REFERENCES:
patent: 1778281 (1930-10-01), Sobek
patent: 2590090 (1952-03-01), De Vaney
patent: 2653809 (1953-09-01), Azbe
patent: 2739800 (1956-03-01), Sisco
patent: 3413733 (1968-12-01), Pospisil
Pages 70, 72, 156, and 157 of the Article, "Calcination Control for High Calcium and Magnesium Limes in Rock Products, " Aug. 1944 Issue.
Pages 118, 120, 122, 124, 138 and 140 of the Article, "Rotary Kiln, Its Performance and Development in Rock Products, " Oct. 1955 Issue.
Camby John J.
Detroit Lime Company
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