Constant-state pulp distribution forming device of thick-pulp-method reconstituted tobacco special for heating cigarettes

Abstract

The invention discloses a constant-state pulp distribution forming device of thick-pulp-method reconstituted tobacco special for heating cigarettes. The constant-state pulp distribution forming devicecomprises a follow-up tape casting unit (1), a curtain type feeding unit (2) and a release agent roller coating unit (3), wherein the follow-up tape casting unit (1) comprises a rack (11), a tape casting box (13), a formed steel belt (14) and a hub (17); the curtain type feeding unit (2) comprises a thick slurry buffer tank (21), a thick slurry discharging pipe (22) and a thick slurry feeding pipe (23); and the release agent coating unit (3) comprises a coating roller (31), a release agent trough (32) and a release agent feeding pipe (33). According to the invention, stable tape casting of thick slurry can be realized, the longitudinal thickness and quantitative stability of the pulp film and thick-slurry-method reconstituted tobacco are improved, holes of the pulp film and thick-slurry-method reconstituted tobacco caused by blockage of the bottom of the scraper by fiber clusters are avoided, and the paper forming rate of the thick-slurry-method reconstituted tobacco is improved; andthe requirements of heating cigarettes on the thickness and quantification stability of the thick-slurry-method reconstituted tobacco are met.

Description

technical field [0001] The invention belongs to the technical field of production and processing of reconstituted tobacco leaves, and in particular relates to a constant-state pulp-distributing and forming device for reconstituted tobacco leaves by the thick pulp method for heating cigarettes. Background technique [0002] The thick pulp reconstituted tobacco has a high water content (about 80%), so the thick pulp has high fluidity, and the tobacco raw materials, added fibers, binders and smokers in the thick pulp have good dispersibility. Reconstituted tobacco has the characteristics of high homogenization, adjustable processing resistance and good heat conduction uniformity, which is one of the main reasons why it becomes the tobacco section material of heated cigarettes. The tobacco material segment of the representative heating cigarette - Philip Morris' IQOS (inner heating) product is the reconstituted tobacco leaf of thick slurry method. [0003] Thick pulp reconstitu...

AI Technical Summary

Problems solved by technology

[0005] (1) During the tape casting process of reconstituted tobacco leaves by thick slurry method, due to the thickness deviation of the formed steel strip and the circumferential runout of the hub, the gap between the steel strip and the scraper fluctuates, and then the prepared serous film and reconstituted tobacco leaves in the longitudinal direction. Quantitative fluctuations are large

[0006] (2) The thick slurry is directly transported to the casting box through one feed pipe or multiple feeding pipes without buffering, resulting in inconsistencies in the lateral height and pressure of the thick slurry in the casting box, making the prepared serous film and Reconstituted tobacco leaves have large fluctuations in banner thickness and ration

[0007] (3) Thick slurry usually has only one scraper during tape casting, and the instantaneous operating pressure for processing the size film is relatively high; If there is tumbling, the fibers in it are easy to agglomerate and block the bottom of the scraper, and then the prepared serous film and reconstituted tobacco leaves with thick pulp method are prone to holes

[0008] (4) Since the release agent has an impact on the sensory quality of the reconstituted tobacco leaves by the thick slurry method, it is necessary to control the amount of the release agent used, and when the release agent is sprayed onto the steel strip by spraying, unevenness is prone to occur, so , when the thick slurry is coated on the steel belt after spraying the release agent, it will cause the uneven thickness of the size film, the reconstituted tobacco leaf and the fluctuation of the sensory quality

[0009] To sum up, it can lead to uneven filling degree of heated cigarettes, which in turn causes large fluctuations in the draw resistance and weight of cigarettes

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