燃料氣與空氣的混合物在燃燒焰面法線方向的速度分量大于該混合物的火焰?zhèn)鞑ニ俣?，則火焰被推出火孔，開(kāi)始離焰，直到火焰被吹跑造成火焰熄火——脫火。燃燒器發(fā)生脫火是不允許的。

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 leave the flame until the flame is blown away, causing the flame to go out. It is not allowed to remove fire from the burner.

用于加熱小斷面料坯的爐子只有預(yù)熱段和加熱段。

習(xí)慣上還按爐內(nèi)安裝燒嘴的供熱帶劃分爐段，依供熱帶的數(shù)目把爐子稱為一段式、二段式，以至五段式、六段式等。50～60年代，由于軋機(jī)能力加大，而推鋼式爐的長(zhǎng)度受到推鋼長(zhǎng)度的限制不能太長(zhǎng)。

The furnace used for heating small broken fabric billet is only preheating section and heating section.

It is customary to divide the furnace section according to the heating belt with the burner in the furnace. According to the number of tropics, the furnace is called the one section, the two section, and the five section and the six section. In the 50~60 era, due to the increase of rolling mill capacity, the length of pusher furnace must not be too long due to the length of steel pushing.

蓄熱式加熱爐的傳導(dǎo)傳熱：傳導(dǎo)傳熱是溫度不同的物體直接接觸（或物體存在溫差）由于自由電子的運(yùn)動(dòng)（對(duì)于鋼材）或分子的運(yùn)動(dòng)（對(duì)于爐氣）而發(fā)生的熱交換現(xiàn)象，此種傳熱發(fā)生在鋼材表面及內(nèi)部和鋼材及爐底之間。

Conduction of conduction in a regenerative heating furnace: conduction heat transfer is the direct contact of a different temperature (or the existence of a temperature difference between a body) due to the movement of free electr (for steel) or the movement of molecules (for furnace gas), which occurs between the surface and inside of the steel and between the steel and the bottom of the furnace.

緊迫停爐時(shí)，制止只用外表風(fēng)封閉控制閥，一定要封閉爐前手閥。如遇被加熱介質(zhì)中止，應(yīng)當(dāng)即救活，爐膛通入蒸汽。爐出人員及過(guò)熱蒸汽壓力計(jì)；調(diào)理風(fēng)門及煙道擋板；緊迫放空設(shè)備；防爆門；爐膛及回彎頭箱救活蒸汽線。

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 saved, 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 save steam line.