Title:
EXTERNALLY HEATED ROTARY KILN
Document Type and Number:
WIPO Patent Application WO/1989/002057
Kind Code:
A1
Abstract:
This invention is intended to provide a rotary kiln for heating indirectly raw material such as ore, coke, etc., while shielding the material from an oxidizing combustion flame. This kiln has a structure wherein a fuel combustion chamber and a reaction chamber of the raw material are partitioned by a heat-resistant ceramic shield plate. The fuel is burnt in the combustion chamber and the combustion gas does not enter the reaction chamber. The raw material is heated indirectly inside the reaction chamber through the ceramic shield plate. When the apparatus of this invention is used, the raw material can be heated indirectly to 1400�C or higher while shielding the raw material from the combustion flame by use of an inexpensive fuel and the apparatus of the invention is particularly effective for reduction treatment of ores.
Inventors:
UEMURA TADASHI (JP)
Application Number:
PCT/JP1988/000878
Publication Date:
March 09, 1989
Filing Date:
September 01, 1988
Export Citation:
Assignee:
SHOWA DENKO KK (JP)
SHUNAN DENKO KK (JP)
TOCERA ENG CO LTD (JP)
SHUNAN DENKO KK (JP)
TOCERA ENG CO LTD (JP)
International Classes:
F27B7/00; F27B7/08; F27B9/08; F27B7/10; F27B; (IPC1-7): F27B7/08; F27B7/00
Foreign References:
| JPH06217590A | 1994-08-05 |
Other References:
See also references of EP 0332709A4
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