| The cut tobacco procedure features strong continuity and relativity. The process control problem at several key quality control points of tobacco shall be discussed in the article, The upstream process provides high-quality raw materials to the downstream process through link-to-link optimization, so as to decrease broken rate in the course, reduce wear and tear, and produce finished cut tobacco product of stable quality.According to the data of materials-processing production, adjust the times of Slicing & Conditioning System slicing of the cutting knife to be 3. Calculate theoretical water addition and the water addition difference affecting moisture variation, determine the front-end water addition parameters to be set as : total water addition-84.3, the back-end water addition parameters set as : 100, and an effective method to control the moisture at the outlet stable through setting of back-end water addition was found out.In order to investigate the uniformity of cigarette primary casing procedure, ethyl maltol in casing flavour was analyzed by using simultaneous distillation and extraction (SDE) and gas chromatography mass spectrometry (GC/MC), which work in the mode of selected ion monitoring (SIM), and a method of evaluating casing uniformity was developed, it had the character of good repeatability and high recovery, which was the relative coefficient of quantitative equation 0.9969, variability 2.72% and recovery 93.71%; By using the method above, the uniformity of cigarette primary casing procedure was carried out by modulating the casing instrument. The results showed that the muzzles in both ends was better than those in one end, the standard deviation declined from 26.821 to 15.020, the casing precision was improved by 44%. Carry out reproducible verification over the testing effects, the standard deviation of detected data was 14.428, which indicated that the stability of the adjustment effects was good.The qualitative and quantitative analysis of volatile and semi-volatile flavor constituents in Casing of Cigarette manufacturing procedure were performed by Simultaneous Distillation Equipment(SDE),GC and GC/MS. Combining with smoking quality of tobacco, the processing parameters of Casing can be optimized,and the preferred processing parameters of Casing were obtained, which were reverting temperature 58℃, roller speed 35HZ and hot wind 15HZ. Online expanding cut tobacco drying machine is a new type airflow drying system, which determines the technical parameters through the group comparison test and verify the test parameters by using the inferred main parameters relationship and calculated theoretical data sheet, i.e. when the hot air temperature of directly conditioning cylinder is 70℃, the air volume of online expanding cut tobacco drying machine is 13000～14000kg/h, working negative pressure 800Pa, temperature of combustion furnace at 400℃, process temperature 240～280℃, 250℃is properCarry out careful statistics and sifting of the stem raw materials and select the typical and featured stem raw materials of Fujian region, Yunan and Guzhou region to perform primary processing by low-temperature water washing and high-temperature steam wetting, the color, wetting degree and processability have been obviously improved. Use the raw stem of Fujian and Yunnan and Guzhou regions as raw materials, determine the steam injection quantity for online-expanding, the parameters of three sections of fluidized-bed, enhance the whole cut rate, filling power of cut tobacco, and processability of cut stem tobacco, and use high quality raw stem to do a verification test, using organoleptic evaluation and online physical indexes to confirm effects.According to the long-term monitoring of the temperature, humidity, filling power, and whole cut rate, study the effect of climatope on the technical indexes such as filling power in cut tobacco processing, it is found out that the online detected filling power of cut tobacco changes with it in reverse relation. General process pre-warning mechanism can be built according such law so as to adjust technical parameters prior to climate environment changes to enhance product quality and stability. The pre-warning correction values and parameters are as: moisture at outlet as +0.5～1%, the correct value of moisture at outlet of cut tobacco drying machine as -0.5～1%. The production line that employs online expanding drying machine can adjust the injected steam up to +200～400l/h, and temperature of drying process between 240℃～280℃, the correct value of cut tobacco mixing-room and cut tobacco storeroom temperature as -2～3℃, humidity as -10～12%. |
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