SUPPRESSING THE DEPOSITION OF CARBONACEOUS MATERIAL IN A COKE OVEN BATTERY

摘要

The coke oven battery has a fuel gas main that is connected to a plurality of headers extending along the battery. Vertical riser ducts are connected to the headers and extend upwardly into the heating flues. Air under pressure is supplied through a main supply line that extends parallel to the fuel gas main. The air supply line is connected to the headers extending crosswise of the battery. In one embodiment valve means are provided in the pipe connecting the fuel gas main and air supply main to the respective headers to simultaneously supply a portion of the air to the headers associated with the "on" flues and a portion of the air to the headers associated with the "off" flues. The air supplied to the headers associated with the "on" flues mixes with and dilutes the rich fuel gas to suppress the tendency to deposit carbon in the vertical riser ducts of the "on" flues. The air supplied to the headers associated with the "off" flues removes the carbonaceous material deposited in the vertical riser ducts of the "off" flues.