Extract deep purification and edulcoration process in manufacturing technology of papermaking tobacco sheets

Abstract

The invention relates to an extract deep purification and edulcoration process in the manufacturing technology of papermaking tobacco sheets. The process comprises the following steps: a, tobacco waste including tobacco stems, tobacco sticks and tobacco powder is fully soaked in hot water and then extracted; b, the mixture of tobacco waste and water is fed into a squeezer and then squeezed for solid-liquid separation, and the liquid part is extracted crudely and is screened through a linear vibrating screen for solid-liquid separation; c, the liquid separated through the linear vibrating screen enters a filter aid process module to be processed through deep macromolecule flocculation, wherein an edible flocculating agent is adopted, the addition proportion is 0.1 to 0.8%, and the flocculation time is 5 to 50 minutes; liquid processed through deep macromolecule flocculation enters a primary horizontal spiral discharge settling centrifuge to be separated; and e, the liquid separated by the centrifuge in step d is pasteurized at the temperature of 60 to 70 DEG C for edulcoration, and then enters a concentration system to be concentrated. The process can effectively remove macromolecule particles, improves the concentration efficiency and ensures the quality of concentrate.

Description

technical field [0001] The invention relates to an intermediate process for the production of paper-making tobacco sheets, in particular to the deep separation and purification of the extract after extraction of tobacco raw materials (tobacco waste such as tobacco stems, tobacco powder, tobacco flakes, and smoke sticks) in the paper-making tobacco sheet production process. complex process. Background technique [0002] Tobacco sheet by papermaking method uses tobacco waste such as tobacco stems, tobacco powder, tobacco flakes, and smoke sticks produced during the cigarette processing process as raw materials. The tobacco fiber forms a substrate through a principle similar to papermaking. It is coated on the base sheet through the process of sizing, and after drying the fragments, it is reconstituted into reconstituted tobacco leaves, that is, paper-making tobacco sheets. Paper-making tobacco sheet has been used as a raw material in cigarette formula, which can effectively r...

AI Technical Summary

Problems solved by technology

[0004] The raw materials of domestic paper-making tobacco sheet are poor in identity and complex in origin, and its rich protein, starch, pectin, cellulose, hemicellulose, lignin and other macromolecular components exist in a large amount in the extract through the extraction and pulping process. In the follow-up long-term high-temperature concentration process, it is easy to gelatinize and coke these ingredients, which affects the quality of the concentrate, and is a factor for the flavor-absorbing defects of thin-film products such as heavy miscellaneous gas, strong irritation, and unpleasant taste.

In addition, during the process of solid-liquid separation to prepare the extract, some fine solid particles such as dust and fine slurry inevitably enter or remain in the extract, and these fine particles affect the quality of the concentrate to a certain extent

Excessive slag content or insoluble matter in the liquid phase will cause slag to deposit in the concentration tank, causing more heat source waste during concentration

For example: Membrane concentration will lead to a decrease in membrane permeability and shortened service life, and vacuum concentration will lead to gradual blockage of heating tubes and affect heat exchange efficiency

Images