Title:
FINE PARTICLE MATERIAL HEAT TREATMENT DEVICE
Document Type and Number:
Japanese Patent JPS593055
Kind Code:
A
Abstract:
Apparatus for heat treatment of fine-grained material has a multi-stage cyclone preheater, a rotary kiln, and a gas pipe extending between the kiln and the preheater and forming a calcination zone for precalcining materials entrained in the gas stream. The gas pipe has an upwardly extending pipe section that communicates with an arcuate deflector section and a downward pipe section which extends downwards to and communicates with the lowest cyclone stage. The downwardly extending pipe section of the gas pipe has an extension constructed as a coarse separator so that relatively coarse material particles contained in the mixed gas-material stream are kept away from the lowest cyclone stage of the preheater.
Inventors:
KAARU KURIYUTSUTSUNAA
Application Number:
JP10408283A
Publication Date:
January 09, 1984
Filing Date:
June 10, 1983
Export Citation:
Assignee:
KRUPP POLYSIUS AG
International Classes:
C04B7/44; B04C5/24; B04C9/00; B07B7/02; B07B7/086; B07B9/02; C04B7/43; F27B7/20; F27D13/00; F27D15/00; F27D17/00; (IPC1-7): C04B7/44; F27D13/00
Domestic Patent References:
| JPS52111919A | 1977-09-20 |
Foreign References:
| FR2449259A1 | 1980-09-12 |
Attorney, Agent or Firm:
Sada Ito
Next Patent: JPS593056