Smoke circulating and converting device of sinterer dust reduction pipe

Abstract

The invention belongs to the technical field of sinterer equipment and sinterer waste heat power generation, and particularly relates to a smoke circulating and converting device of a sinterer dust reduction pipe. The smoke circulating and converting device comprises a sinterer big smoke way main pipe, a smoke way tail pipe, a tail-end dust reduction pipe and an electric control system, an electric pipeline valve is arranged at a position where the sinterer big smoke way main pipe is connected with the smoke way tail pipe, a smoke waste heat air extraction door is arranged on the smoke tail pipe, the tail-end dust reduction pipe is composed of a smoke dust vertical pipe, a smoke dust bypass pipe, a smoke bypass pipe, a pipeline switching device and a pipeline grating device, an electric pipeline valve, the pipeline switching device and the smoke waste heat air extraction door are all connected with the electric control system. The smoke dust vertical pipe is composed of a round vertical pipe, a round-to-square pipeline joint, a square vertical pipe, an electric air locking device I, an electric air locking device II and a manhole door. Low-temperature air in the tail dust reduction pipe does not enter a waste heat boiler any more, so that influence of cold air which leaks in is avoided and inlet smoke temperature and waste heat utilization efficiency of the waste heat boiler are improved greatly.

Description

technical field [0001] The invention belongs to the technical field of sintering machine equipment and sintering machine waste heat power generation, and in particular relates to a flue gas circulation conversion device of a sintering machine dust reduction pipe. Background technique [0002] The lower part of the sintering machine trolley is equipped with a plurality of continuous dust collecting bellows (the number varies from about 20), and the lower part of each bellows is connected with a dust-falling pipe, and the dust-falling pipe is finally connected to the large flue of the sintering machine. The cold air passes through the sintering machine and burns with the sinter to generate hot air. After the hot air is blown by the dust collection bellows, it enters the sintering flue through the dust-falling pipe under the bellows. After the sintering flue, a fan generates power to suck the hot air to the direction of the sintering head. The sintered ore is transported from ...

AI Technical Summary

Problems solved by technology

If the heat of this bellows is used for waste heat utilization, the average flue gas temperature of sintering waste heat recovery will generally be reduced, the quality of waste heat will be reduced, and the waste heat utilization effect of sintering machine will be seriously affected.

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