Experimental Study And Numerical Simulation On Circular Mould Wear Of Biomass Briquetting

With the rapid development of economy for many years in our country, growth in demand for energy will inevitably lead to energy shortages and environmental pollution--the dual enormous pressures. Therefore, developing and utilizing a new type of energy which ensuring the rapid development of economy without damaging the environment has become a major hot topic. Biomass energy resources are very rich in China, researching and developing high utilization technology of biomass energy can promote the improvement of energy structure, ensure future energy supply and raise the level of economic development and environmental quality. It is significance for building a harmonious society.Biomass briquetting is an important branch of biomass energy conversion technology. It is significance for the development and utilization of straw biomass resources of Heilongjiang province in China. In this paper, based on"863" project "The new technologies of inclined plate-type heat trough low-power precision control of biomass fast pyrolysis system for bio-fuel and hybrid emulsion fuel", and research project in Heilongjiang province "The bio-fuel production plant of annual output of 2,000 tons", and key projects in Heilongjiang province "The key technology of biomass briquette manufacturing", Under the background of developing biomass utilization technology as a kind of energy resource, aimed at no domain in abrasion mechanism research on biomass material to the metallic material in China, in order to improve the wear resistance of metallic material to biomass material, in order to reduce the circular mould wear, in order to optimize the circular mould structure, in order to increase service life of roller forming machine, the paper does the research on the wear failure mechanism of circular mould and the abrasion mechanism of biomass material to metallic material; Finite-element method, BP Neural Network and genetic algorithms were combined together to optimize the circular mould; The method of B-spline function interpolation had been used to describe circular mould profile, the paper established optimal mathematical model and get the optimal shape of the circular mould in the end.This paper created a new domain in abrasion mechanism research on biomass materials to metallic materials. The research not only provided a theoretical basis for the choice of key parameters of biomass briquetting, but also provided theoretical and reference basis for designing and manufacturing circular mould. The method used in the optimal design of the circular mould was also a breakthrough and meaningful attempt.