Eight-section baking process for upper tobacco leaves of NC102

Abstract

The invention discloses an eight-section baking process for upper tobacco leaves of NC102, which comprises a control section I, a control section II, a control section III, a control section IV, a control section V, a control section VI, a control section VII and a control section VIII, wherein each section is provided with a heating process and a temperature stabilizing process, and the setting of error controlling; in the control sections II, III, and V, a dry bulb temperature and a wet bulb temperature are used as controlling targets; in the other control sections, the dry bulb temperatureis used as the controlling targets. The baking process has the beneficial effects that the operability of the baking process is strong, the dry bulb temperature can be uniformly increased according tothe set heating rate during the heating process, and the heating is not too fast; the dry bulb temperature and the wet bulb temperature can fluctuate within the set range during the temperature stabilizing process. According to the baking process, appearance chromaticity of the tobacco leaves can be enhanced, yield of high-quality tobacco leaves can be improved, smoking evaluation quality can beimproved, energy consumption can be reduced, and baking cost can be reduced.

Description

technical field [0001] The invention belongs to the tobacco leaf curing process, especially an eight-stage curing process for the upper tobacco leaf of NC102. Background technique [0002] At present, intensive baking has made major breakthroughs and innovations in equipment and technology, and has obvious technical advantages in energy saving, quality improvement, labor saving, and consumption reduction. As the carrier of the curing process, the advanced curing room equipment reduces the technical complexity and the risk of tobacco leaf curing, the overall quality of the tobacco leaves has also been effectively improved, the grade structure of the tobacco leaves has been significantly improved, and operators do not need to master a large number of complete sets of curing Toasting technology can realize high-tech toasting process only through simple labor, which effectively promotes the development of specialized toasting, improves the quality and benefit of tobacco leaf toa...

AI Technical Summary

Problems solved by technology

The current research on NC102 mainly focuses on the analysis of planting and quality characteristics. The tobacco leaf curing process of NC102 still adopts the traditional "three-stage five-step" curing process, which is a general-purpose curing technology. The standard is a baking process based on the traditional intensive baking room. Although some researchers have made research and improvement on this process, there are still some problems: ① The traditional baking process cannot meet the baking needs of advanced dense baking rooms, such as Inner circulation dense drying room baking system, this baking system removes the moisture removal window on the original drying room and changes the humidity removal to dehumidification. Poor control requirements are higher. The wet bulb temperature target value set in the dehumidification process is completely different from the wet bulb temperature target value set in the traditional baking process. Heat pumps and electric energy are used for heating, so that heating and heating The speed control is more flexible, but the traditional "three-stage five-step" curing process cannot satisfy; ②The traditional curing process only focuses on the dehydration and dehumidification of the tobacco leaves, without considering the transformation and synthesis of the internal substances of the tobacco leaves. Optimum temperature and humidity lead to light color, insufficient oil content, reduced aroma, and low smoking quality of the cured tobacco leaves, thereby reducing the economic value of the tobacco itself, failing to bring out the advantages and potential of NC102, and reducing the income of tobacco farmers; ③The traditional curing process can no longer match the advanced control system. For the current advanced control system, it can automatically adjust the static pressure in the curing room and the wind speed in the leaf gap according to the advanced curing process according to the degree of withering and drying of the tobacco leaves in the loading room, so that the loading The real-time dry bulb temperature error of each point in the smoke chamber is within a small range, so that the difference in appearance and taste of the tobacco leaves due to the temperature difference between the upper shed, middle shed and lower shed can be avoided

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