Title:
多段炉床炉
Document Type and Number:
Japanese Patent JP4662560
Kind Code:
B2
Abstract:
The inventive multi-level furnace comprises a furnace wall delimiting a cylindrical space having a vertical axis, a plurality of beds defining the levels inside said cylindrical space and at least one scraping arm which is provided with a wall scraper and associated with the bed in such a way that it is rotatable about the vertical axis of the furnace. During scraping arm rotation, said wall scraper defines a scraped area on the internal surface of the furnace wall which comprises a plurality of wall cavities forming a row of access openings in the scraped area, thereby making it possible to avoid the formation of a hardened crust adhered to the internal surface of the furnace wall and to develop braking shocks in the scraping arm.
Inventors:
Ronaldi, Emile
Application Number:
JP2007513893A
Publication Date:
March 30, 2011
Filing Date:
April 13, 2005
Export Citation:
Assignee:
PAUL WURTH S.A.
International Classes:
F27B1/02; F27B1/21; F27B9/18; F27D3/00; F27D25/00
Domestic Patent References:
| JP2004530859A | ||||
| JP6123638A | ||||
| JP3123639A | ||||
| JP63201483A | ||||
| JP63150383A | ||||
| JP59060175A | ||||
| JP56012796U | ||||
| JP55053686A | ||||
| JP54144408A | ||||
| JP53117774U | ||||
| JP53031378A | ||||
| JP53001105A | ||||
| JP51049761U | ||||
| JP39025865B1 |
Foreign References:
| GB393387A | ||||
| US3430928 | ||||
| US2317941 | ||||
| WO1996010718A1 |
Attorney, Agent or Firm:
Keiichiro Saikyo
Takeshi Sugiyama
Inoue Shinji
Takeshi Sugiyama
Inoue Shinji