Patent · US Expired

Method of heat treating fine granular material

US4035139A · kind A · utility

5Cited by

5References

4Claims

0Family size

Assignee

Polysius AG

Inventors

Wolf Goldmann · Beckum, DE
Georg Schepers
Horst Ritzmann · Enniger, DE
Heinz-Werner Thiemeyer · Ennigerloh, DE

Key dates

Filing date	Mar 18, 1976
Grant date	Jul 12, 1977
Priority date	—
Expiry date	Mar 18, 1996

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF27B7/2033
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

A chamber which forms a material inlet and an exhaust gas outlet at one end of a rotary kiln has an inclined bottom arranged to cause preheated fine material deposited thereon to slide by gravity into the end of the rotary kiln. A dense stream of fine granular material is deposited on such inclined surface, and fuel in finely divided form is introduced into the dense stream of material flowing down the inclined surface to cause the fuel to become intimately mixed with the material. Gas is discharged from the kiln in contact with the stream of material as such a velocity as to entrain a substantial proportion of such stream, the temperature and composition of the gas being such as to cause combustion of the fuel mixed with the entrained material.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.