Circulation method for preparing expanded cut tobacco

Abstract

The invention discloses a circulation method for preparing expanded cut tobacco, comprising the following steps: (1) putting cut tobacco into a preheated impregnating tank, then carrying out vacuum-pumping; (2) spraying liquid expanding agent to the cut tobacco; (3) filling gas expanding agent to the impregnating tank; (4) impregnating; (5) first, recycling the liquid expanding agent, then recycling the gas expanding agent; and (6) expanding the impregnated cut tobacco, and carrying out operations in step (2) or / and step (3) by the liquid expanding agent and the gas expanding agent recycled in step (5). The method of the invention has mild condition and greatly reduced requirement for devices, by fully recycling the expanding agents, the cost is lowered, the complete set of devices has low energy consumption and high automation, continuous mass production can be carried out, all performance indexes of the obtained expanded cut tobacco are high, the expanded efficiency of the cut tobacco is high, and the recycling rate of the expanding agents is high.

Description

technical field [0001] The invention relates to the field of tobacco production and manufacturing, in particular to a shredded tobacco manufacturing process in the cigarette production and manufacturing process. Background technique [0002] At present, in the world's cigarette production and manufacturing process, in order to improve the quality of cigarettes, various processes are adopted to improve the quality of shredded tobacco. Among them, in order to reduce the amount of tar in cigarette smoke, improve the quality of smoking, make cigarettes burn evenly and improve the filling capacity of shredded tobacco to cigarettes , Manufacturers with a certain technical capacity all adopt shredded tobacco expansion technology to achieve the above goals. And in the shredded tobacco expansion technology, the technologies that are relatively mature and popular in the world at this stage are carbon dioxide shredded tobacco expansion technology, Freon shredded tobacco expansion techn...

AI Technical Summary

Problems solved by technology

[0008] In summary, CO 2 The process of expanding shredded tobacco needs to be carried out under low temperature and high pressure, the crushing rate of shredded tobacco is high, the energy consumption of equipment is large, and the CO 2 The boiling point is low, although it can be recovered, its recycling rate is not high; and the above-mentioned tobacco expansion process with water as the medium also has high requirements for equipment