Cooling method of roller hearth type open fire heat treatment furnace

The invention discloses a cooling method of a roller hearth type open fire heat treatment furnace. The cooling method comprises the following steps: operating the roller hearth type open fire heat treatment furnace; and cooling the roller hearth type open fire heat treatment furnace by using the bur...

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Hauptverfasser:	LIU XUHUI, WANG JING, LI QIYUAN, WEN CHANGFEI, LI ZHENGTAO, ZHOU CHUN, YAN LIXIN, LIANG LIANG
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	CHEMISTRY GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS METALLURGY METALLURGY OF IRON MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS
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Beschreibung
Zusammenfassung:	The invention discloses a cooling method of a roller hearth type open fire heat treatment furnace. The cooling method comprises the following steps: operating the roller hearth type open fire heat treatment furnace; and cooling the roller hearth type open fire heat treatment furnace by using the burners at the even number position and the odd number position of the burner cooling circulation system of the roller hearth type open fire heat treatment furnace in a cooling alternate pulse circulation manner, so that the pressure of the burner cooling circulation system is 5.5-7.5 KPa. According to the cooling method of the roller hearth type open fire heat treatment furnace, the burners, located at the even number position and the odd number position, of the burner cooling circulation system are used for cooling alternate pulse circulation, cold air is blown into the roller hearth type open fire heat treatment furnace for cooling, the cooling uniformity in the furnace can be good, and the cooling rate is consiste