Abstract:

To extract cane juice by crushing is a common method of cane sugar manufacturing. The mechanism and operating parameters of sugarcane crushing is studied typically based on practical experience and experiment. However, the cost of test is high and test analysis is affected by many uncertainties. Therefore, the finite element simulation method is used to analyze the fluid-solid coupling of sugarcane crushing process. To study the complex process of large deformation, strong friction and fluid-solid coupling during sugarcane crushing, the reasonable simplification and hypothesis of sugarcane fiber is proposed. According to the nonlinear mechanical phenomenon of sugar cane crushing process, a fluid-solid coupling finite element model of sugarcane juice extraction is established. The results of seepage / stress coupling finite element analysis suggest that the simulation model can exhibit the internal mechanical phenomena of cane fiber, and can explain sugarcane crushing mechanism. The effects of the compression ratio, roller line speed and feeding pressure on roll pressure and roll torque are analyzed, which may provide a reference for optimizing the operating parameters of sugarcane mill. Finally, the corresponding conclusions are presented.

Key words: finite element method, fluid-solid coupling, nonlinear mechanics, porous media, sugarcane crushing