燃料气与空气的混合物在燃烧焰面法线方向的速度分量大于该混合物的火焰传播速度，则火焰被推出火孔，开始离焰，直到火焰被吹跑造成火焰熄火——脱火。燃烧器发生脱火是不允许的。
The velocity component of the mixture of fuel gas and air in the normal direction of combustion flame is larger than that of the mixture, and the flame is pushed out of the fire hole and starts to le***e the flame until the flame is blown away, causing the flame to go out. It is not allowed to remove fire from the burner.
连续加热炉通常使用气体燃料、重油或粉煤，有的烧块煤。为了有效地利用废气热量，在烟道内安装预热空气和煤气的换热器，或安装余热锅炉。
Continuous heating furnace usually use gas fuel, he***y oil or coal, and some coal burning. In order to effectively utilize exhaust heat, a preheat air and gas heat exchanger is installed in the flue, or a HRSG is installed.
靠炉底或水冷金属梁的上升、前进、下降、后退的动作把料坯一步一步地移送前进的连续加热炉。炉子有固定炉底和步进炉底，或者有固定梁和步进梁。
Depending on the action of rising, advancing, falling and backing of the furnace bottom or the water-cooled metal beam, the material is transferred to the continuous reheating furnace step by step. The furnace has fixed furnace bottom and walking furnace bottom, or there are fixed beam and walking beam.
紧迫停炉时，制止只用外表风封闭控制阀，一定要封闭炉前手阀。如遇被加热介质中止，应当即救活，炉膛通入蒸汽。炉出人员及过热蒸汽压力计；调理风门及烟道挡板；紧迫放空设备；防爆门；炉膛及回弯头箱救活蒸汽线。
When the furnace is shut down, the outer closed valve must be stopped. The hand valve must be closed. If the heating medium is discontinued, it should be s***ed, and the furnace is connected with steam. Furnace personnel and superheated steam pressure gauge; conditioning air valve and flue baffle; urgent emptying equipment; explosion-proof door; furnace and elbow box to s***e steam line.