Smoke collecting device of iron tapping hole of rotary electric furnace

Abstract

The invention discloses a smoke collecting device of an iron tapping hole of a rotary electric furnace. The smoke collecting device comprises a smoke collecting hood (2) arranged around the iron tapping hole (8), an annular chute (3) fixedly arranged outside the smoke collecting hood (2), an arc-shaped flue (5) matched on the outer side of the chute (3) in a sliding manner, and smoke discharging branch pipes (6) uniformly distributed on the flue (5). The smoke collecting hood (2) and the chute (3) rotate together with a furnace body of the electric furnace (1), and the flue (5) is fixed in a working region. The smoke collecting device of the iron tapping hole of the rotary electric furnace, provided by the invention, is used for perfectly collecting and discharging smoke generated by the rotary furnace in an iron tapping process through matching of the smoke collecting hood and a smoke discharging channel, effectively prevents smoke overflow, feasibly solves the problem of difficulty in collecting the smoke in the iron tapping hole of the rotary electric furnace, and has higher use value.

Description

technical field [0001] The invention relates to a flue gas collection device for a rotary electric furnace tapping hole, in particular to a device for collecting flue gas generated during the tapping process of a rotary electric furnace. Background technique [0002] At present, the ferroalloy smelting process is developing rapidly in China, and the electric furnace smelting process is also constantly improving and changing to meet different product requirements, and the rotary electric furnace is born. The smelting process of the electric furnace is periodic, and the iron is tapped once in each cycle, and the molten iron flows out from the taphole, and is received by the molten iron ladle for reprocessing. [0003] The electric furnace will produce a large amount of dust-containing fume during the tapping process, especially when the iron hole is opened and blocked, the smoke generated is very concentrated, and the dust concentration is high. If it is not collected and puri...

AI Technical Summary

Problems solved by technology

[0003] The electric furnace will produce a large amount of dust-containing fume during the tapping process, especially when the iron hole is opened and blocked, the smoke generated is very concentrated, and the dust concentration is high. If it is not collected and purified in time, it will cause damage to the environment. extreme pollution

However, because the taphole flue gas has the characteristics of periodicity and large instantaneous flue gas volume, and there are many process equipment in the taphole area, it is difficult to arrange the collection fume hood and pipeline, which brings great difficulties to the collection and treatment of flue dust

[0004] In addition, the design of the taphole fume collection hood is limited by space, and the design of the fume hood is generally relatively small, especially for the design and arrangement of the taphole fume exhaust hood of the rotary electric furnace.

The rotary electric furnace will rotate at a low speed during the production process, and the taphole arranged on the furnace body will also change position with the rotation of the electric furnace, which increases the difficulty of arranging the taphole trap hood

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