Full-automatic cut stem softening and continuous production method for tobacco stems

Abstract

The invention relates to an automatic tobacco stem and cut stem softening continuous production method, which comprises the following steps of: manually feeding tobacco stems, performing sorting, performing weighing according to a process ratio, conveying the tobacco stem into an extraction process section blanking device through air charging, performing continuous stem washing and continuous stemsteaming process links, feeding the tobacco stems into a vertical extraction tank, adding hot water into the vertical extraction tank, and performing stirring and extracting; after extraction is finished, pumping the tobacco stems to a water filtering screw through a screw pump to remove surface water and feeding the tobacco stems into a primary grinding machine for defibering, diluting defiberedstems in a transition tank, pumping thetobacco stems to a plate-and-frame filter press through the screw pump for solid-liquid separation, feeding liquid to a concentration section for concentration,and spirally conveying solids into a secondary extraction tank through the bottom of the plate-and-frame filter press; adding hot water into the extraction tank for dilution, performing stirring andextraction, then pumping the mixture into a secondary plate-and-frame filter press through a screw pump for solid-liquid separation, and enabling the solids to enter a pulping process section for pulping. After treatment by the method, the suspended matter content of the extracting solution is less than or equal to 0.2%, and the extracting solution can directly enter a concentration process section to be concentrated.

Description

technical field [0001] The invention belongs to the technical field of tobacco processing, and specifically relates to a method for fully automatic shredded stem softening and continuous production of tobacco stems. Background technique [0002] At present, the extraction of tobacco stems in reconstituted tobacco leaves by the papermaking method has been stuck in the solid-liquid separation of twin-screw presses. In order to discharge liquid smoothly, the filter seam is relatively large. During the pressing process, fine fibers are discharged together with the liquid, resulting in a decrease in the yield of raw materials. At the same time, it also brings great pressure to the purification of the extraction liquid. The cost of purification of the extraction liquid also increase. In the current process, there is no continuous washing and steaming of stems, the extraction efficiency is poor, the softness of tobacco stems is not enough, the content of chloride ions in tobacco s...

AI Technical Summary

Problems solved by technology

[0002] At present, the extraction of tobacco stems in reconstituted tobacco leaves by the papermaking method has been stuck in the solid-liquid separation of twin-screw presses. In order to discharge liquid smoothly, the filter seam is relatively large. During the pressing process, fine fibers are discharged together with the liquid, resulting in a decrease in the yield of raw materials. At the same time, it also brings great pressure to the purification of the extraction liquid. The cost of purification of the extraction liquid also increased

In the current process, there is no continuous washing and steaming of stems, the extraction efficiency is poor, the softness of tobacco stems is not enough, the content of chloride ions in tobacco stems is large, the skin of tobacco stems cannot be removed, and the purity of the extract is poor, etc. Neither can be improved

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