DRYING AND HEATING OF COKE OVEN BATTERIES WITH ANY GAS HEATING AGENCY

Drying and heating of coke oven batteries are separate stages of an integrated technological process. Both drying and heating follow one another and have the same pattern of gas flow. Drying is gradual and complete removal of moisture from the massive of oven’s brickwork. Warming up is raising of brickwork temperature in the heating flues up to the level allowing ovens heating under the normal scheme and ovens charging with coal.

The main parameters to be controlled in the process of drying and heating of coke ovens are:

• fuel consumption;
• excess air coefficient;
• temperature in discrete spots of oven’s brickwork;
• pressure in discrete spots of heating system.

Main advantages of heating of coke ovens brickwork with liquefied petroleum gas (LPG):

• Safety of heating process, where gas combustion (mixture of propane-butane) arise from the optimum distribution of air and gas flows in the ovens stove, without its prior mixing;
• Self-containment of gas supply system, allowing safe and precise adjustment of heating process in its entirety;
• Environmentally friendly process due to minimal emissions of combustion products into the air medium;
• High calorific value of gas combustion (propane-butane mixture) and relatively low cost compared to the alternative fuel.