Special-shaped vibrating screen for separating silvers and tobacco shreds and screening method

Abstract

The invention discloses a special-shaped vibrating screen for separating silvers and tobacco shreds. The special-shaped vibrating screen is characterized by comprising multiple rows of diversion and organization zones (5) and screen hole zones (6) which are alternatively arranged in the front-back direction, wherein multiple rectangular screen holes (2) are distributed in the screen hole zones (6), a certain distance is reserved between every two adjacent rectangular screen holes (2) and a solid flat plate (7) is limited. Multiple forwards and upwards inclining diversion slope benches (1) aredistributed in the diversion and organization zones (5), a certain distance is reserved between every two adjacent diversion slope benches (1), and an organization groove channel (3) is limited. The special-shaped vibrating screen can solve the problem of silk hanging produced when a traditional screen window type vibrating screen screens a silver and tobacco shred mixture, long-time stable operation can be achieved, and the separating efficiency can be greatly improved.

Description

technical field [0001] The invention belongs to the field of cigarette processing equipment, and in particular relates to a special-shaped vibrating screen and a screening method for separating stem sticks and shredded tobacco. Background technique [0002] In the tobacco processing industry, after the tobacco is dried, threshed, fermented, shredded, etc., a mixture of stalks and shredded tobacco is obtained. The stalks mainly come from the stems or leaf stalks of tobacco, and are mostly short cylindrical. The shredded tobacco mainly comes from the tobacco leaves, mostly in the form of curly sheets or strips. The stem stick affects the quality of smoking, so it needs to be separated from the cut tobacco to obtain pure cut tobacco. [0003] In the prior art, the two are generally screened and separated by using a traditional screen-type screen. The principle is that the length of the shredded tobacco is greater than the size of the sieve hole, and the length of the stem is s...

AI Technical Summary

Problems solved by technology

However, in the screening practice, it is found that the problem of "hanging silk" will occur, that is, the shredded tobacco and stem sticks are entangled with each other to form bridges, which will hinder the fall of stem sticks and cannot fall into the sieve holes, and a large number of bridges will hang on the screen. If the sieve holes are blocked, some bent shredded tobacco will be hooked on the sieve holes and cannot move forward, which will also cause the sieve holes to be blocked. After these problems accumulate to a certain extent, the sieving cannot continue at all.

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