Heating – With means diluting – purifying or burning exhaust gases
Reexamination Certificate
2011-08-16
2011-08-16
Wilson, Gregory A (Department: 3749)
Heating
With means diluting, purifying or burning exhaust gases
C432S121000, C266S144000
Reexamination Certificate
active
07997897
ABSTRACT:
A to-be-burned object including a metal Si component or SiC or Si3N4can be burned in such a manner that vaporized SiO can be safely exhausted without causing SiO attached to a wall of a furnace or an inner face of an exhaust duct. An exhaust method of a continuous furnace for continuously burning a to-be-burned object containing a metal Si component or highly-fire-resistant SiC or Si3N4includes steps of 1) exhausting in-furnace gas including SiO vaporized during a burning process. An exhaust duct2used for this exhaust is provided at an upper part of a side wall12of the furnace having a higher temperature (1300 degrees C. or more) than a concentration temperature of SiO vaporized during a burning process. 2) oxidizing the exhausted SiO at the outside of the furnace to detoxify SiO. The in-furnace gas exhausted by the exhaust duct2is guided to an exhaust pipe3connected to an outlet of the exhaust duct2at the outside of the furnace. This exhaust pipe3includes oxygen supply holes31aand31b. By sending oxygen supplied from an appropriate oxygen supply source into the exhaust pipe3, SiO guided to the exhaust pipe3reacts with oxygen and is detoxified.
REFERENCES:
patent: 3554508 (1971-01-01), Dell'Agnese
patent: 4715810 (1987-12-01), Ramsey et al.
patent: 4878839 (1989-11-01), Wunning
patent: 2008/0110394 (2008-05-01), Noda et al.
patent: 2008/0197544 (2008-08-01), Saijo et al.
patent: A-63-217188 (1988-09-01), None
patent: A-11-257862 (1999-09-01), None
patent: A-2002-249385 (2002-09-01), None
patent: A-2003-207274 (2003-07-01), None
Goshima Takashi
Ihara Chikashi
Miyata Jotaro
NGK Insulators Ltd.
Oliff & Berridg,e PLC
Wilson Gregory A
LandOfFree
Method of discharging gas from continuous oven and gas... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method of discharging gas from continuous oven and gas..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of discharging gas from continuous oven and gas... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2760406