Unit type vacuum moisture regaining loosening technique

Abstract

The invention relates to a unit type vacuum moisture regain loose technique. The vacuum moisture regain casing which is adopted by the technique is a set of vacuum processing unit casings which are arranged in parallel along a cigarette package conveying channel, each unit casing is evenly connected with a vacuum-pumping system and a humidifying system, cigarette packages which are packed into the casing enter into each unit casing through different paths to go through vacuum moisture regain processing, one battlement cigarette or a turnover casing enters into the unit casing in one time, and single turnover casing is put with 1.5-2 cigarette packages in one time. The invention can evenly distribute the moisture regain rate of tobaccos on each part of the moisture regain casing, and continuously feed tobacco package and carry out the vacuum moisture regain processing to realize continuous production, further, the invention can choose different processing strengthen of vacuum moisture regain of tobacco battlements or sheet tobacco battlements with various qualities and kinds, the energy use rate is high, and the operation of equipment is reliable.

Description

technical field [0001] The invention belongs to the technical field of vacuum dampening and loosening treatment of tobacco leaves in a tobacco production line. Background technique [0002] Moisturizing and loosening the tobacco leaves is an indispensable and important process in the production and processing of tobacco. The prior art mainly adopts a drum-type blade dampening machine and an online continuous vacuum dampening system to dampen and loosen tobacco leaves. The main problem of the drum-type blade moistening machine is that the crushing rate of the tobacco leaves is too large. However, in the existing online continuous vacuum moisture regain system, batches of tobacco leaves placed on trays are sent into the vacuum moisture regain box by manual or logistics equipment for vacuum moisture regain treatment. There is only one inner chamber with a larger cavity on a vacuum moisture regain line. The moisture regain box can hold multiple stacks or packs (usually four pa...

AI Technical Summary

Problems solved by technology

[0003] ①Because there are too many cigarette bales processed in one batch, the internal space of the moisture regain box is large, and the air flow is uneven, which makes the permeability of each part uneven, that is, the permeability of different parts varies greatly after vacuum moisture regain treatment

[0004] ②The rehydration box is filled with a large number of cigarette packs each time, which limits the production scheduling, and it is impossible to select different vacuum rehydration "processing intensity" for different quality categories of tobacco leaves

At the same time, when the remaining amount of batch processing is much smaller than the batch processing amount, the remaining small amount of smoke not only wastes energy, but also reduces the penetration rate through experiments.

[0005] ③ Poor continuity when feeding and discharging materials

Batches of tobacco leaves that have been processed at the same time in each batch enter the subsequent process. Due to the long waiting time, the temperature and moisture loss of the tobacco sheets are relatively large.

[0006] ④ The instantaneous steam consumption peak value of the vacuum dampening device is too large, resulting in high steam supply costs

The overall energy loss is large and the energy utilization rate is low

[0007] ⑤ System reliability is not high

The vacuum dampening device is only equipped with a large dampening box. Once a failure occurs, the entire equipment will stop running, resulting in production interruption

[0008] ⑥Due to the poor air permeability in the large vacuum box, the tobacco leaves are not easy to permeate, and the uniformity is not good. It is often necessary to adopt a double-cycle vacuum moisture resurgence treatment process, which takes too long and consumes too much energy.

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