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Title:
METHOD FOR OPERATING GLASS MELTING FURNACE AND GLASS MELTING FURNACE
Document Type and Number:
Japanese Patent JP2013028482
Kind Code:
A
Abstract:

To provide a glass melting furnace operating method and a glass melting furnace capable of surely stopping downward flow of molten glass without changing the structure of a flow-down nozzle, capable of shortening also time required for one batch processing and capable of improving working efficiency.

In the operating method, a furnace bottom heating step of raising a glass temperature on the bottom of a melting furnace body, a glass flow-down step of further raising the glass temperature raised in the furnace bottom heating step up to a set temperature and extracting molten glass into which a solution to be treated is mixed from a center part of a bottom electrode and a furnace bottom cooling step of reducing the glass temperature raised up to the set temperature in the glass flow-down step are repeated as one-batch processing. From the middle of the furnace bottom heating step, cooling air is supplied and allowed to flow into a cooling air flow passage of a cooling jacket, and on the middle of the furnace bottom cooling step through the glass flow-down step, supply of the cooling air is stopped.


Inventors:
NABEMOTO TOYONOBU
ONO ISAMU
MURATA MASATOSHI
Application Number:
JP2011165027A
Publication Date:
February 07, 2013
Filing Date:
July 28, 2011
Export Citation:
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Assignee:
IHI CORP
International Classes:
C03B5/23; C03B5/027; C03B5/12; C03B5/26; C03B5/44; F27B3/08; F27B3/19; F27B3/20; F27B3/24; G21F9/16
Domestic Patent References:
JP2008037673A2008-02-21
JP2000088998A2000-03-31
JP2002249321A2002-09-06
JPH04214038A1992-08-05
JPH07280996A1995-10-27
JP2008037673A2008-02-21
JP2000088998A2000-03-31
JP2002249321A2002-09-06
JPH04214038A1992-08-05
Attorney, Agent or Firm:
Yamada Patent Office