Paddle shaft provided with reverse blade of steam dryer

Abstract

The invention discloses a paddle shaft provided with a reverse blade of a steam dryer. The paddle shaft comprises a shaft body, wherein blades are arranged on the shaft body; the blades comprise front blades which are used for pushing materials forwards when the shaft body rotates clockwise and the reverse blade which is used for reversely pushing the materials when the shaft body rotates clockwise. According to the paddle shaft disclosed by the invention, the reverse blade is arranged on the shaft body, so that wet materials are reversely pushed when the shaft body normally rotates, and therefore, dispersing of materials and cleaning of blades are facilitated while drying time of the materials can be guaranteed. The two paddle shafts are separately the first paddle shaft and the second paddle shaft, which are arranged in a dryer case in parallel, and the blades on the first paddle shaft extend to a gap between adjacent blades on the second paddle shaft. According to the paddle shaft disclosed by the invention, the blades on adjacent two shaft bodies are arranged in a crossed mode positively and negatively, so that the materials can be continuously extruded, rubbed and stirred between the two blades, and therefore, contact areas between the materials and the blades are increased.

Description

technical field [0001] The invention relates to a steam dryer, in particular to a paddle shaft for the steam dryer with reverse blades on it. Background technique [0002] The steam dryer transfers the heat energy of the steam to the material through the heat transfer method of heat conduction, so that the moisture of the material is continuously evaporated in the shell. In the dryer shell, the inner propeller shaft stirs to push the material to move, and completes the entire drying process. With the rotation of the paddle shaft in the dryer shell, the materials are stirred and mixed under the action of the blades. [0003] In the paddle steam dryer manufacturing technology, the paddle shaft is the most critical component. The blade arrangement on the traditional paddle shaft is generally to push the material forward after the blade rotates. Practice has proved that this method cannot guarantee the residence time of the material in the dryer shell, so that it will affect t...

AI Technical Summary

Problems solved by technology

The blade arrangement on the traditional paddle shaft is generally to push the material forward after the blade rotates. Practice has proved that this method cannot guarantee the residence time of the material in the dryer shell, so that it will affect the drying effect of the material, and This structure is not conducive to the full twisting of materials and the self-cleaning of blades

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