Flow Field Characteristics in the Combustion Space of a Float Glass Furnace with Co-combustion of Heavy Oil and Petroleum Coke

Abstract

Abstract A numerical simulation was carried out for the combustion space of a float glass furnace in which the heavy oil and petroleum coke were co-fired. The characteristics of gas flow in the combustion space and its influence on the temperature distribution were analyzed. The research shows that after the combustion air coming from inlet 2 to inlet 6 respectively enters the flame space, it flows toward the outlet, and forms a relatively straight “flame” after the fuel is completely burned, eventually forming five high-temperature zones with wide coverage; when the flue gas generated by the combustion reaches the outlet, a part of the flue gas from inlet 2 to inlet 4 is deflected to the left, and a recirculation zone is formed above the batch material zone at the left end, and the O2 is diluted, so that the fuel at No. 2 zone is not sufficiently burned, resulting in a temperature region being significantly lower than other regions; A part of the flue gas at No. 5 and No. 6 is deflected to the right, forming a recirculation zone above the clarification zone at the right end, so that the combustion at No. 7 is insufficient, resulting in a lower temperature zone at that place, but the influence is weaker than that at No. 1, so the temperature peak at No. 7 is slightly higher than that at No. 1.