Steam stalk moistening method and equipment for implementing same

Abstract

The invention provides a tobacco stalk pre-processing method and tobacco stalk pre-processing equipment which can shorten the water permeability time of the tobacco stalk, ensure consistent moisture of the soaked tobacco stalk, save the storage process of the moistening of the tobacco stalk and simplify the process flow. The method comprises the following steps of: feeding a tobacco stalk material into a screw conveyer which is filled with steam and keeps proper pressure and proper temperature; continuously feeding the tobacco stalk material into the screw conveyer through a feeding vapor lock; continuously discharging the tobacco stalk material through a discharging vapor lock; and increasing the moisture and the temperature of the tobacco stalk to meet the requirements of the stalk pressing and cutting process on the discharging temperature and the moisture. The equipment comprises a bearing screw conveyer with a steam inlet and a water drainage port; a feed port and a discharge port of the screw conveyer are provided with the feeding vapor lock and the discharging vapor lock respectively; and the feeding vapor lock is provided with a water replenishing port. The water permeability of the tobacco stalk is improved by increasing the pressure and the temperature of the moistening environment of the tobacco stalk, so that the method and the equipment shorten the water permeability time of the tobacco stalks, quickly realize the pre-processing effect of the moistening of the tobacco stalk, save the storage process of the moistening of the tobacco stalk and greatly simplify the process flow of the stalk processing.

Description

technical field [0001] The invention relates to a method for pretreatment of tobacco stems in the process of tobacco processing, in particular to a treatment method for moistening tobacco stems with steam before the tobacco stems are shredded. Background technique [0002] For tobacco processing technology, the internal and external moisture balance of tobacco stem treatment is crucial to the quality of cut tobacco stems. It is important to improve the treatment effect of tobacco stems before cutting, reduce process procedures and production energy consumption, and improve process control quality. It is an important way for enterprises to reduce production costs and improve processing quality. [0003] Chinese patent 200610098314.5 provides a method for processing tobacco stems. The method for processing tobacco stems includes screening, dust removal and winnowing, flow control and expanding tobacco stems. The stem raw material is sent into the pressurized treatment bin thr...

AI Technical Summary

Problems solved by technology

[0008] 2. The moisture content of cut stems cannot be effectively controlled

The moisture content of cut stems is sometimes too high, resulting in poor uniformity of cut stems

[0009] 3. The process is complicated, the equipment occupies a large area, the investment is high, and the energy consumption is high

[0010] 4. There are many links in the treatment of tobacco stems, the process is complicated, and the process quality is difficult to control

However, this treatment method does not simplify the tobacco stem treatment process. On the contrary, it needs to add a vacuum moisture resurfacing device, which cannot effectively achieve the purpose of reducing production costs for tobacco companies.

[0012] The existing high-temperature and high-humidity tobacco stem treatment process is for the wetting treatment of the tobacco stems under normal pressure, and the water permeability of the tobacco stems is used to realize the wetting of the tobacco stems. For a long time, this method completely relies on the moisture suction of the tobacco stem itself to achieve water penetration, and it is difficult to achieve uniform moisture inside and outside the tobacco stem.

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