The Optimization Of Biomass Molding Machine Based On ANSYS And Experiment

The biomass energy is the most important renewable energy, and it has a broaddevelopment prospects. The biomass compression molding technology is able to turnloose biomass materials into the biomass molding fuel which has a certain density, sothat the biomass energy sources can be better used. Through the analysis of existingmolding equipment, mainly found the following questions.(1) The existing molding equipment has such problems: high energyconsumption, the article design a new molding machine to save energy and reducecost, so that it can be commercial promotion in the future.(2) The existing molding equipment has a complex forming process, and theadaptability to the raw material is poor. By simplify the molding process to improvethe material adaptability of the molding equipment.The article researches the biomass compression molding from the followingparts:(1) Analysis the deficiency of the existing molding machine and combine withthe biomass compression theory, design and optimization the existing moldingmachine. The design from improve productivity, reducing energy consumption; solvethe problem of the unit cost too much to design the new molding machine. The focalpoint of the design: feeding system, pre-press system, cutting system, compressionsystem, heating system.(2) In the forming process of the biomass compression, there are too manyfactors affect them. In order to better research on biological qualitative moldingprocess, in this paper, we analyze the influence factors of biomass molding processand find the most suitable conditions for the forming process. The main factors weconsider in this paper are: molding temperature, raw material type, raw materialmoisture content, the size of forming sleeve, the size of the particle and friction forceof biomass materials, etc.(3) Using the finite element analysis software ANSYS to analyze the rawmaterial compression molding process. Respectively select the temperature in the 150℃，200℃，250℃to analyze. Select three different temperature field t=0.3T, t=0.6T, t=1T to simulate. And analyze the temperature field changes in the differentconditions, and finally determined the most suitable temperature for the forming ofbiomass.(4) After the biomass materials compression, evaluate the quality of the moldingpieces. The quality of the molding piece directly influence the forming of storage,transportation and fuel combustion performance. This paper mainly inspects thedensity forming quality, through the experiment we can get the relationship amongmolding temperature, moisture and density. And we get the following conclusion:In the molding process, the different of the moisture and molding temperaturewill have a big affect to the density of molding fuel. According to the experimentaldata,we can know that when the temperature is240℃,the moisture is12%, thebiomass molding fuel will have a good density.