加热炉的分类:
按炉型结构分类：有箱式炉、立式炉等。 按燃烧形式分类：底烧式炉、侧烧式炉。 按供风形式分类：强制供风炉、自然供风 .
Classification of heating furnace:
According to the type of furnace type structure, there are box type furnace, vertical furnace and so on. According to the form of combustion, the bottom burning furnace and the side burning furnace. Classification according to the form of air supply: forced air supply furnace and natural supply wind.
在使燃料能完全燃烧的情况下希望空气过剩系数越低越好。但过低可能造成燃烧不完全，而过高将增加了炉内空气量，降低炉子的热效率，对于强制通风或引风，还将增加动力消耗，烟气中的氧含量过多也将增加对炉管和其他部件的损失。
It is hoped that the higher the air surplus coefficient, the better the fuel can be completely burned. But too low may cause incomplete combustion, and too high will increase the volume of air in the furnace and reduce the thermal efficiency of the furnace. For forced ventilation or induced draught, it will also increase power cumption and excessive oxygen content in the flue gas will also increase the loss of furnace tubes and other components.
用于加热小断面料坯的炉子只有预热段和加热段。
习惯上还按炉内安装烧嘴的供热带划分炉段，依供热带的数目把炉子称为一段式、二段式，以至五段式、六段式等。50～60年代，由于轧机能力加大，而推钢式炉的长度受到推钢长度的限制不能太长。
The furnace used for heating ***all 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.
焚烧时司炉工不能面对火嘴及看火窗，避免回火伤人。如火焰平息，应当即封闭燃料阀，炉膛内需用蒸汽吹扫后，方能重新焚烧。进入炉内维修时，应处置进入设备内作业手续。防爆门不得用其它物件堵死，避免失掉防爆效果。习惯上还按炉内安装烧嘴的供热带划分炉段，依供热带的数目把炉子称为一段式、二段式，以至五段式、六段式等。引时要注意脱净存水及凝缩油，并在安全地址排空15分钟以上，经化验剖析含氧量小于1%,方可投用焚烧。进炉前一定要通过阻火器。
When burning, the stoker can not face the fire mouth and look at the fire windows, so as to ***oid backfire and injure people. If the flame is subsided, the fuel valve should be closed immediately, and the furnace needs to be cleaned by steam before it can be re burned. When entering the furnace maintenance, the operation procedures for entering the equipment should be of. The explosion-proof door should not be blocked by other objects, so as to ***oid the explosion proof effect. Attention should be paid to the removal of water and condensate when gas diversion, and more than 15 minutes at a safe address, after analysis of laboratory oxygen content less than 1%, can be put into incineration. Gas must be passed through the flame arrester before entering the furnace.