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Study on Key Techniques of Threshing & Re-drying Quality Control

Author: WangBin
Tutor: TuNaiMei
School: Hunan Agricultural University
Course: Crop
Keywords: Formula Runye Playing in leaves Redrying
CLC: S572
Type: Master's thesis
Year: 2010
Downloads: 77
Quote: 0
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Abstract

Roasting the main task is to achieve formula, remove impurities, leaf stems separated and regulate water to achieve storage conditions facilitate the cigarette factory. Among these objectives to be achieved are: uniform chemical composition, sheet-shaped structure with moderate Terrier. In this study, different levels of Anhui Wannan tobacco material using different processing, and processing changes affect Roasting physical and chemical indicators of process control parameters on product quality, the use of comparative law, standard deviation, coefficient of variation and feel product suction identify the best methods and parameters of the different levels of processing of raw materials. Drawn through the test: the key uniform chemical composition in the recipe, the tests showed that pure by SHOP leaf station doing the ratio can be reduced nicotine coefficient of variation around 60%, simply by leaf storage cabinet ratio of nicotine can reduce the coefficient of variation around 10%, by for raw materials pre-election Shop leaf table and then artificial ratio to reduce nicotine coefficient of variation of 80%. Runye is an important factor affecting the threshing, the tobacco Runye moisture content and temperature sparring leaves have a certain impact, With the increase in tobacco moisture in the lower part of the the smoke large and medium-sized piece rate has increased, but on lower smoke affect the central smoke is not obvious, but the lower limit large and medium-sized chip rate changed little smoke near the water. Leaf leaves with stems of large and medium-sized chip rate, fragmentation rates affect different parts of the impact of tobacco, the lower smoke largest the upper smoke, followed by Central Smoke smaller. Different total content Terrier on the piece rate, a stem ratio, the impact of the fragmentation rate, the higher the total content of Terrier is conducive to the increase in the rate of the chip, a Terrier rate has little effect, lower total content Terrier will make playing leaf made chips increased, the fragmentation rate. Comprehensive physical and economic indicators in the play leaves middle leaves with stems controlled in the range of 1.0 to 1.5%, the upper leaves with stems controlled at 1.3 to 1.8%, lower leaves with stems control in the 1.5 to 2.0% is more appropriate. Redrying temperature rise caused by the the certain blade contraction, especially at a temperature greater than 75 ° C, the upper and lower smoke significantly affect, followed by the middle of the smoke. Appropriate redrying temperature is conducive to maintain and improve the quality of tobacco, a lower temperature is conducive to the increase of the amount of tobacco aroma, especially the upper smoke, but the temperature is greater than 80 ° C when the decline in tobacco aroma quality. Redrying temperature control at 70 ° C to 80 ° C, and is conducive to moisture evenly grilled, maintaining at the same time to improve the physical properties of the leaves and tobacco aroma.

Study on Key Techniques of Threshing & Re-drying Quality Control

Abstract

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