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Xia C.,Huahuan International Tobacco Co.
Tobacco Science and Technology | Year: 2013

For reclaiming the secondary steam from the open steam condensate reclaiming system in tobacco processing facility and reducing heat and steam condensate loss, the steam condensate reclaiming system was improved. Using soft water from sodium ion exchanger as a cooling medium, it cooled down secondary steam by means of a heat exchanger, the secondary steam condensed and flowed back to a collection container. The results of application showed that after improvement, 900 kg of secondary steam produced by a 1.2×106 kg/h threshing and redrying line every day was reclaimed completely, 37000 kg of coal and 225000 kg of soft water were saved per year, which saved 38030 RMB yuan in total. Source


Zhang X.,Shanghai Tobacco Group Co. | Fu Q.,Tobacco research institute | Dou J.,Huahuan International Tobacco Co. | Dou Y.,Tobacco research institute | Yang B.,Shanghai Tobacco Group Co.
Acta Tabacaria Sinica | Year: 2014

75 leaf samples of different stalk positions produced in Guizhou province in 2012 were measured through multipoint measurement to determine flue-cured tobacco leaf thickness. 5 measuring points were evenly distributed from leaf apex to base, 1/2 half leaf width away from midrib for proper measurement. The average value of these 5 measuring points was considered thickness of the whole leaf. This method was applied to 1200 middle or upper leaf samples from 16 provinces of China's major tobacco growing regions. Result showed that middle or upper leaves from Huanghuai region and Southeastern China were the thickest, followed by those from Southwestern China and those from Northern China as well as upper and middle reaches of the Yangtze River. Source


Huang F.,Huahuan International Tobacco Co. | Wang S.,Huahuan International Tobacco Co. | Wang L.,CAS Zhengzhou Research Institute | Chen Q.,Huahuan International Tobacco Co. | And 2 more authors.
Tobacco Science and Technology | Year: 2015

In order to study the drying characters of tobacco of different makeup, the changes of moisture content in C2F strips from Pingdingshan and Zhumadian, Henan, and their mixtures at the mass ratios of 2:1, 1:1 and 1:2 during drying were investigated. Five conventional drying models were compared, and then a mathematical model was established to describe the drying characters of the mixtures of strips. The results showed that: 1) Newton thin layer drying model was determined as the basic model. 2) The distribution coefficient in the dynamic drying model contained two factors, initial moisture content and equilibrium moisture content of the dried strips. 3) The relative error between the fitted values of Newton model parameters and the calculated values of drying model parameters were less than 5%, the established mathematical model could predict the drying dynamic parameters of mixed strips and evaluate the drying characters of mixed strips. ©, 2015, Editorial Office of Tobacco Science and Technology. All right reserved. Source


Huang F.,Huahuan International Tobacco Co. | Chen Q.,Huahuan International Tobacco Co. | Wang L.,CAS Zhengzhou Research Institute | Dou J.,Huahuan International Tobacco Co. | And 2 more authors.
Acta Tabacaria Sinica | Year: 2014

C2F tobacco strips from Panzhihua were investigated on features of humidifying and drying from the perspective of moisture migration rate, dynamic model and parameters application in order to study the law of moisture migration in tobacco strips during processing under different temperature and humidity conditions. Results showed that humidifying and drying of tobacco both experienced a changing process of increasing stage, first decreasing stage and second decreasing stage. According to mechanism analysis it was found that moisture condensation could be avoided and uniformity of tobacco humidifying could be enhanced by increasing humidity gradually. Six thin-layer dynamic models were examined and the model Midilli fit best in both process of humidifying and drying. Dynamic parameters and interval time of moisture change was highly correlated if moisture control of ordering and redrying in the processing was taken into account. Such correlation would render good reference for actual production. ©, 2014, State Tobacco Monopoly Bureau and China Tobacco Society. All right reserved. Source


Wei P.,Huahuan International Tobacco Co. | Wu Z.,Huahuan International Tobacco Co. | An Y.,Huahuan International Tobacco Co. | Ma J.,Huahuan International Tobacco Co.
Tobacco Science and Technology | Year: 2014

To shorten the time needed for setting the threshing system, the relationships between the physical characteristics of tobacco leaves and the technological parameters of threshing and pneumatic separation were investigated with stepwise regression, partial correlation, path analysis and cluster analysis. The results showed that: 1) The stepwise regression equation for the physical characteristics and the technological parameters reached a significant level. 2) The rotational speed of the first stage threshing drum should be elevated with the increase of leaf temperature leaving the second stage ordering cylinder; the rotational speed of the fourth stage threshing drum should be lowered, while that of the third one should be elevated with the increase of moisture content in leaves; the rotational speed of the first stage threshing drum should be elevated, while that of the fourth one should be lowered with the increase of leaf thickness; the rotational speed of the second stage threshing drum should be elevated with the increase of leaf width; however, leaf length had nothing to do with the drum's speed. 3) Air velocity in all the pneumatic separators should be set higher with the increase of moisture content in leaves leaving the second stage ordering cylinder; the first stage pneumatic separator downstream the second stage thresher should be set at higher air velocity with the increase of leaf thickness. 4) On the basis of physical indexes obtained from stepwise regression and combining with the rotational speed of threshing drum and the air velocity in pneumatic separator, fifteen of nineteen samples were divided into four categories, the leaves in the same category were processed with similar technical parameters; while the other four samples were processed by different parameters. Source

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