A device for introducing alkali-containing flue gas from a cement kiln bypass ventilation power generation boiler

Abstract

The invention discloses a device for leading in the alkali-containing smoke of a by-pass power generating boiler of a cement kiln. The device comprises a by-pass boiler of which one side is provided with a by-pass boiler pipe, and the by-pass boiler pipe is provided with a dust collecting barrel which is internally provided with a rotating shaft; both ends of the rotating shaft are rotatably connected to the opposite inner side walls of the dust collecting barrel separately, and the outer side wall of the dust collecting barrel is provided with a driving device; the end of an output shaft of the driving device penetrates the side walls of the dust collecting barrel, and is fixedly connected to one end of the rotating shaft; the rotating shaft is provided with two telescoping mechanisms, and the ends, far away from the rotating shaft, of the two telescoping mechanisms are connected through a connecting rod; and the connecting rod is equidistantly provided with a plurality of brush rodsin a run-through manner, and the side walls of the connecting rod are provided with locking devices used for fixing the brush rods to the connecting rod. The device disclosed by the invention is simple in structure and easy to operate, and the problem that a smoke duct is blocked by kiln dust in the by-pass alkali discharge process of a cement decomposing kiln is solved; and the device is applicable for promotion.

Description

technical field [0001] The invention relates to the technical field of cement production, in particular to a device for introducing alkali-containing flue gas from a cement kiln bypass ventilation power generation boiler. Background technique [0002] For a long time in our country and even in many parts of the world, due to the high alkali content in cement raw materials, the clinker produced also has high alkali content. Clinker with high alkali content not only reduces the strength of cement, but also grinds out If the cement is used, the service life of the concrete is greatly shortened, so reducing the alkali content in the clinker is an urgent problem to be solved by many cement manufacturers at home and abroad. [0003] At present, the main measure to reduce the alkali content in the clinker at home and abroad is to perform bypass ventilation at the tail of the decomposition kiln: that is, to extract a stream of flue gas in the tail smoke chamber of the decomposition ...

AI Technical Summary

Problems solved by technology

[0003] At present, the main measure to reduce the alkali content in the clinker at home and abroad is to perform bypass ventilation at the tail of the decomposition kiln: that is, to extract a stream of flue gas in the tail smoke chamber of the decomposition kiln where the alkali content is the most abundant, and to discharge the flue gas. The kiln dust with high alkali content is discharged, thereby reducing the alkali content in the clinker, but in the prior art, the kiln dust is easy to stick and block, causing problems in the production process

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