Parkhurst & Oliff
Combustion control apparatus of a combustion furnace
 A combustion control apparatus of a combustion furnace by an improved fuel and air complementary control system according to master control system is disclosed, which is provided with a regulating means connected to a master controller and adapted for detecting the amount of load change and for setting the length of an air damper control rod's length changing device to a preset standard value corresponding to the load, without controlling the oxygen concentration in the exhaust gas to a standard value, when the load change is increased to a value of not lower than the preset value. The combustion control apparatus can control stably the oxygen concentration in an exhaust gas to a low level even when a load is suddenly changed. 
NGK Insulators, Ltd.
F F
F23N F23N
inventional inventional
Jun Hiroshi
Usami Yamada