Construction Of Comprehensive Evaluation Index System And Modeling Analysis Of The Effect Of Atomization Of Cigarette Material

Cigarette feeding process is the key process in the production process of cigarettes,tobacco leaves by the material evenly affect the sensory quality of cigarettes directly,how to judge whether the tobacco material is uniformity or not,the domestic tobacco industry through mix the tobacco and liquid mixture according the The results to determine the feeding effect,and did not form a complete set of cigarette material spray atomization effect of comprehensive evaluation index system.In this thesis,the experimental study on the atomization effect of the cigarette material was carried out under the support of the science and technology project"Numerical simulation and Application Research of multiphase flow in charging process"and"research and application of multi physical field coupling effect in the process of wire making based on digital characterization." The influence of the material flow rate(F),the liquid temperature(T),the gas pressure(F),the temperature of the liquid(T)and the temperature of the liquid(T)were measured.The results showed that the liquid flow rate(F),The gas pressure(P)has a significant effect on the change of the atomization cone angle,and the multiple linear regression model of atomization cone angle and liquid temperature(T)and liquid particle size and liquid flow rate(F)were given.The response surface model of the material flow(F),gas pressure(P)and atomization cone angle and the response surface model of the material particle size and gas pressure(P)and liquid temperature(T)were constructed by using response surface analysis method The The digital characterization module of the comprehensive evaluation index system of liquid atomization was improved,and the white box system of the black box system was realizedIn this thesis,the process of atomization of raw material was divided into injection area,atomization zone and diffusion zone.The three regions were divided into three parts,and the new index overlap ratio and the particle size distribution were evaluated.(0.2mm-0.8mm)is defined according to the experimental and simulation results.Based on the experimental study of atomization effect of cigarette material and the idea of system holism reduction theory,the comprehensive evaluation system of atomization effect of cigarette material was constructed.According to the experiment,six atomization schemes(a1,a2...A6),combined with nonlinear AHP decision-making method for the advantages and disadvantages of the atomization program.The sort result was a2>a5>a4>a3>a1>a6.Finally,the rationality of the comprehensive evaluation index system was verified according to the existing testing standard in the production.The results showed that the leaf uniformity was the best in the(0.2mm-0.8mm)particle size distribution and the leaf There was a positive correlation between propylene glycol content and overlap rate.