Novel submerged arc furnace and flue gas sealing device thereof

Abstract

The invention relates to the field of metal smelting and discloses a novel submerged arc furnace and flue gas sealing device thereof. The flue gas sealing device comprises a rotary liner platform anda smoke hood. The rotary liner platform is arranged in a circular notch of the smoke hood. An upper half ring is arranged on the periphery of the rotary liner platform, and the upper half ring is connected with the rotary liner platform through ring-shaped groove plates of the inner ring of the upper half ring. A lower half ring is arranged on the top of the smoke hood in a circular manner. The upper half ring does not contact with the lower half ring, the ring-shaped groove plates of the outer ring of the upper half ring are arranged in a groove of the lower half ring, a smoke sealing mediumis arranged in the groove, a smoke sealing medium is arranged in the groove, and therefore the upper half ring and the lower half ring can form a mazy sealed structure. By means of the novel submergedarc furnace and the flue gas sealing device thereof, due to the flue gas sealing device, flue gas leakage of the submerged arc furnace can be effectively reduce, the environment is protected, meanwhile, the failure rate of the submerged arc furnace can be reduced by utilizing the flue gas sealing device, the occupational disease danger of workers is lowered, and the running rate of the submergedarc furnace is improved.

Description

technical field [0001] The invention relates to the field of metal smelting, in particular to a novel submerged arc furnace and a flue gas sealing device thereof. Background technique [0002] In the production process of smelting various alloys in semi-closed and fully closed submerged arc furnaces, it is necessary to ensure the normal use of the equipment in the submerged arc furnace at all times. The flue gas goes up, and the flue gas and dust enter the interior of the equipment, which will cause the operation of the equipment to be blocked, resulting in equipment overload and control failure. In the long run, it will cause damage to the equipment and shorten the life of the equipment. [0003] Among them, the feeder is more seriously affected by the flue gas. The feeder is one of the common equipment in the submerged arc furnace. It is mainly used to cooperate with other equipment in the submerged arc furnace to complete the unloading work. During the working process of...

AI Technical Summary

Problems solved by technology

During the working process of the feeder, along with the high reaction temperature and severe reaction conditions of the submerged arc furnace, the feeder is very susceptible to the influence of smoke and high temperature environment, especially some moving parts in the feeder, the high temperature flue gas is easy to These moving parts directly enter the interior of the feeder body, causing equipment failures, ranging from furnace shutdown accidents, affecting changes in electric furnace indicators, increasing unit consumption per ton of iron, reducing output, and affecting the health of workers in severe cases.

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