Ring heating stove possessing partition air curtain device

Abstract

The invention relates to a ring-shaped heating furnace with a gas proof curtain obstructing device, belonging to the energy-saving and environment-protecting continuous mode heating furnace. A ring-shaped hearth body is provided with a combustion nozzle burning system, a heating furnace exhaust port, a discharge port furnace door and a feeding furnace door, wherein, the front and the back as well as the middle of the discharge port furnace door are provided with three restricting partition walls. The invention is characterized in that the lower edge of the restricting partition wall between the heating furnace exhaust port and the feeding furnace door is provided with a gas proof curtain obstructing device capable of sealing the gap between the restricting partition wall and the bottom of the furnace. The gas proof curtain obstructing device has the structure that the two sides of the lower part of the restricting partition wall are provided with a curtain pipe, an entrance port of the curtain pipe is provided with a manual adjusting valve which is connected with an air supply. The ring-shaped heating furnace ensures that the high temperature flue gas of the soaking zone of the furnace can not pass through the lower edge short passing of the restricting partition wall to the exhaust port, thereby reducing the thermal losses caused by the high temperature flue gas short passing; the ring-shaped heating furnace has good effect of energy conservation and emission reduction and reduce the energy consumption more than 20 percent.

Description

technical field [0001] The invention relates to an annular heating furnace with a partition air curtain device, belonging to an energy-saving and environment-friendly continuous heating furnace. Background technique [0002] The ring furnace is a continuous furnace, which consists of a ring furnace and a rotary furnace bottom. [0003] Annular furnaces are mostly used for heating steel billets before forging and rolling, and can also be used for heat treatment heating. It is a type of furnace commonly used in metallurgy and machinery industries. Its advantage is that it occupies less land and has a high degree of mechanization. [0004] The loading and discharging doors of the annular furnace are located adjacent to each other. The advantages are flexible operation and easy mechanization of loading and discharging. The disadvantage is that the high-temperature heating section is close to the flue opening at the end of the furnace, and there is a short-circuit phenomenon of ...

AI Technical Summary

Problems solved by technology

[0007] (1) More than 30% of fuel was wasted due to the short-circuit phenomenon of high-temperature flue gas

[0008] (2) It is difficult to control the furnace pressure, and the furnace door often bursts into flames or absorbs a large amount of cold air, resulting in the operating environment

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