Method for improving reconstituted tobacco extraction rate in paper-making process

Abstract

The invention discloses a method for improving a reconstituted tobacco extraction rate in a paper-making process. The method comprises the following steps: (1) weighing commercial wood pulp which is 3-8% of the formulated weight of reconstituted tobacco raw materials, and defibering the reconstituted tobacco raw materials by virtue of hot water which is added according to a proportion and conforms to a requirement on extraction process temperature so as to obtain commercial wood pulp slurry which is not greater than 10% in mass concentration; (2) controlling a commercial wood pulp oven dry addition amount in the obtained commercial wood pulp slurry to be not greater than 10% of the weight of the reconstituted tobacco raw materials by virtue of an electronic flow meter, wherein the oven dry addition amount is a result of multiplying a cumulant of the electronic flow meter by the concentration of the commercial wood pulp slurry, and uniformly mixing the slurry with the tobacco raw materials so as to obtain a mixing process product of the reconstituted tobacco raw materials and the commercial wood pulp; and (3) filtering the mixing process product by virtue of a water filtering spiral conveyor so as to remove most extracting solution, pressing the filtered product in a presser and squeezing out liquid in fibers to achieve solid-liquid separation, so that an extracting solution is obtained. According to the method provided by the invention, a pressing dryness degree can be improved and an extracting solution yield can be increased, so that the yield of a tobacco paste is subsequently improved, and a problem on material balance in a reconstituted tobacco production process is solved.

Description

technical field [0001] The invention belongs to the technical field of reconstituted tobacco leaf production by papermaking method. Background technique [0002] The production of reconstituted tobacco leaves by papermaking method is to use tobacco leaf fragments, tobacco stems and other non-tobacco fibers produced in the process of cigarette processing as mixed raw materials, after solvent extraction and concentration of the extract, it is used as a coating solution, and the extracted solids are processed by the papermaking method. Production processes such as beating, copying and molding, coating liquid backcoating, drying and cutting, etc., to obtain reconstituted tobacco leaves that can be used by the cigarette industry. [0003] Tobacco sheets, tobacco stems and tobacco stems, which are the main raw materials for the production of reconstituted tobacco leaves by the papermaking method, are mainly extracted with hot water at 70-85°C as a solvent during the production pro...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the deficiencies in the prior art, to provide a method to improve the extraction rate of reconstituted tobacco leaves by papermaking method, so as to solve the problem of low extraction rate and low smoke paste yield in the production process of papermaking reconstituted tobacco leaves. poor balance problem