Method and apparatus for controlling combustion in a furnace

Details Method and apparatus for controlling combustion in a furnace Method and apparatus for controlling combustion in a furnace

2005-11-08

2005-11-08

Rinehart, Kenneth (Department: 3749)

Furnaces

With exhaust gas treatment means

Recirculation means

C110S295000, C110S342000

Reexamination Certificate

active

06962117

ABSTRACT:
A method and system for controlling the combustion in a furnace in which the flue gas generated by the burning in the combustion zone is fed back to the combustion zone through a recirculation path to cool the combustion zone so that the temperature is below the melting or softening point of the residual ash in the solid materials. Water is heated and vaporized by the flue gas so as to cool the flue gas. Generated water vapor is also introduced to the combustion zone to increase the burning rate.

REFERENCES:
patent: 3958920 (1976-05-01), Anderson
patent: 4046085 (1977-09-01), Barry et al.
patent: 5400723 (1995-03-01), Okuno et al.
patent: 5957064 (1999-09-01), Barry et al.

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