Combined thermal transmission type micro roller drying device of tobacco

Abstract

The invention provides a tobacco combined heat transfer type small-sized roller drying device, which comprises a pre-heater connected with a gas source and a water source, a saturated humid air generator, a mixer, a roller device and a data acquisition device, wherein the pre-heater and the saturated humid air generator can send gases generated to the mixer by conveying pipes respectively, and the gases are mixed and sent to the roller device by a rotary connector to make the staying time controllable treatment on the cut tobacco in the roller; and the pre-heater, the saturated humid air generator, the mixer and the temperature of air flow sent to the roller device can be controlled by an intelligent temperature control instrument. The drying device has the essential characteristics that under the conditions of controlling the rotary speed and the temperature of the roller wall of the roller, the roller and an introduced dried gas medium jointly processes a certain amount of cut tobacco samples in the roller in the set drying time; simultaneously, during the processing, partial cut tobacco is taken out for analysis and evaluation on physical, chemical and aesthetic quality; furthermore, the analysis and the judgment on the processing quality property of the cut tobacco in the drying process are made.

Description

technical field [0001] The present invention relates to tobacco processing equipment, in particular to a small tobacco composite heat transfer drum drying device, which is aimed at the controllable composite heat transfer (tube wall temperature, gas temperature, etc.) Medium temperature and humidity) and a small device for drying under certain drum rotation speed conditions, the maximum batch capacity is 1kg. Background technique [0002] In the process of tobacco production and processing, the drum dryer based on composite heat transfer is the most widely used. The processing process for shredded tobacco (or cigarette raw materials such as cut stems and sheets) is a steady-state process, and the heat and humidity of shredded tobacco in the steady-state process Transfer is a transient process, and the characteristics of processing quality variation with processing conditions and residence time in the transient process are the core of steady-state process control. The main s...

AI Technical Summary

Problems solved by technology

The heat transfer method of this device has realized the drying process of the composite heat transfer to a certain extent, but because there are two movement modes of the shredded tobacco in the drum, one is to lift together with the heat conduction plate, and the other is to When the heat conduction plate moves to a certain angle, the shredded tobacco is freely sprinkled, but the shredded tobacco in the device is still piled up, the conduction and heat transfer method cannot process the shredded tobacco evenly, and the electric heating sheet cannot meet the uniform temperature field on the sheet; at the same time, there is humid air The temperature and humidity conditions cannot be controlled

Therefore, this device does not well solve the relevant problems of drum drying under compound heat transfer

[0005] However, when studying the processing characteristics of shredded tobacco on the shredded tobacco drum drying equipment used in production, there are the following problems: 1. The amount of shredded tobacco is too large (300kg / h~10000kg / h), resulting in waste of shredded tobacco; 2. The intermediate samples cannot be taken out, resulting in research Difficulties in the relationship between quality and residence time, 3. The adjustment range and control accuracy of the operating parameters of production equipment are limited, which may easily lead to non-repeatable data

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