Sintering machine head bellows

Abstract

The invention relates to a handpiece air bellows of a sintering machine. The handpiece air bellows comprises a pipeline. The two ends of the pipeline are connected with flanges. The pipeline is a rectangular pipe. Abrasion-resistant ceramic lining plates are arranged on the inner walls of the pipeline. A turning plate is arranged in a pipeline cavity of the pipeline. The turning plate is in a rectangle shape matched with that of the pipeline cavity of the pipeline. A rotary shaft is connected with one side of the turning plate. The two ends of the rotary shaft are rotationally matched with the pipeline. The other side faces of the turning plate are closely attached to the pipeline cavity walls of the pipeline. According to the handpiece air bellows of the sintering machine, the abrasion-resistant ceramic lining plates are arranged in the inner cavity of the pipeline, and the flushing loss of high-speed airflow can be greatly reduced; one side of the turning plate in the pipeline cavity is connected with the rotary shaft, part of a channel of the pipeline cavity is normally open, the opening degree of the other part of the channel is adjusted through the turning plate, and particle blocking is avoided; and according to a preferable mode, a pipeline with the section dimension being reduced is adopted, airflow is prevented from flowing through narrow gaps under the same air capacity condition, and the possibility of flushing and blockage is decreased.

Description

technical field [0001] The invention relates to a sintering machine in the field of metallurgy, in particular to a sintering machine head bellows which is beneficial to prolonging the service life. Background technique [0002] The sintering machine is used to heat the iron-containing powder or fine granular material at high temperature, and the fine granular material is sintered into blocks under the condition of incomplete melting for ironmaking. [0003] The bellows and supporting system installed in the sintering machine head. The bellows is a pipe-like structure. There is a flap inside the pipe. The middle part of the flap is connected to the pipe through a rotating shaft. Rotating the flap reduces the opening of the flap so that the flap and the inner wall of the pipe A narrow gap is formed between them. When the sintering machine is in operation, it performs a draft action, and the airflow passes through the narrow gaps on both sides of the flap to achieve low negati...

AI Technical Summary

Problems solved by technology

However, the decrease of the opening of the flap causes the speed of the flue gas to increase, and the airflow carries the material particles to form a strong erosion of the bellows, which greatly reduces the life of the bellows, and because the opening of the flap is small, it is easy to block the gap between the flaps

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