Title:
多段炉床炉
Document Type and Number:
Japanese Patent JP5006945
Kind Code:
B2
Abstract:
A multiple hearth furnace includes a gas cooling system for its central shaft and its rabble arms. This gas cooling system includes within the shaft an annular main distribution channel for supplying a cooling gas to the rabble arms and a central exhaust channel for evacuating the cooling gas leaving the rabble arms. The gas cooling system further includes an annular main supply channel surrounding the annular main distribution channel and being outwardly delimited by an outer shell of the shaft. A cooling gas inlet is connected to the annular main supply channel. A cooling gas passage between the annular main supply channel and the annular main distribution channel is spaced from the cooling gas inlet, so that cooling gas supplied to the cooling gas inlet has to flow through the annular main supply channel through several hearth chambers before it flows through the cooling gas passage into the annular main distribution channel.
Inventors:
Ronaldi, Emile
Utmache, Patrick
Clemmer, Edgar
Tokert, Paul
Utmache, Patrick
Clemmer, Edgar
Tokert, Paul
Application Number:
JP2009549391A
Publication Date:
August 22, 2012
Filing Date:
January 31, 2008
Export Citation:
Assignee:
PAUL WURTH S.A.
International Classes:
F27B1/24; F27B1/02; F27B1/21; F27D3/00
Domestic Patent References:
| JP2010518352A | ||||
| JP2004530859A | ||||
| JP2004530095A |
Foreign References:
| FR620316A1 | ||||
| DE505583C2 |
Attorney, Agent or Firm:
Yoshiaki Sato