Cut tobacco air conveying method and device

Abstract

The invention discloses a cut tobacco air conveying method and device. Cut tobacco products enter a pneumatic conveying pipeline from a cut tobacco feeding machine, climb to the height of a pipeline layer by virtue of an active elbow, horizontally advance in the pipeline layer, then arrive at a position above a cigarette making machine and enter one trapezoid interface pipe with cross section gradually increased, and speed of cut tobaccos is flexibly converted; then the cut tobaccos pass through a buffered blanking device, airflow is extracted from the upper part, after the speed of the cut tobaccos is reduced, the cut tobaccos are fed to the blanking device in a free floating way and then enter into a metering tube to be buffered, and a cut tobacco collecting tank of the cigarette making machine is charged as required, so that a cigarette making technology is completed. The cut tobacco air conveying method and device have the advantages that breakage of the cut tobaccos and system energy consumption can be greatly reduced by virtue of measures of lowering air speed of conveying airflow, improving track of airflow in the elbow, lowering direction changing frequency, increasing cut tobacco feeding quantity every time and softening cut tobacco charging.

Description

technical field [0001] The invention relates to the technical field of tobacco pneumatic conveying, in particular to a method and device for pneumatic conveying of shredded tobacco. Background technique [0002] In the tobacco production process, the shredded tobacco is conveyed from the shred storage device to the cigarette making machine through a long distance by pneumatic conveying, and the shredded tobacco is separated from the air flow by the air-material separation device, and the shredded tobacco enters the cigarette process section. The pneumatic conveying equipment is simple, occupies a small area, and is convenient for layout. Therefore, it has become an important transportation method for tobacco production. However, due to the low moisture content of cut tobacco that needs to be pneumatically conveyed, generally between 11.5% and 13.0%, pneumatic conveying is likely to cause large cut tobacco to be broken. [0003] In the pneumatic conveying system, shredded to...

AI Technical Summary

Problems solved by technology

When the shredded tobacco enters the shredded box of the cigarette making machine, the shredded tobacco is compressed and filled without any buffer at high speed, which further increases the shredding of the shredded tobacco

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