Study On Mechanism And Key Technoloty Of Fen Chiew Starter Making

Mode of production in Mechanical starter-making have saveral advantages such as higher efficacy, better consistency of products, lower intensity of labour, etc. But there are also drawbacks of poor effect in purifying syrup etc., which cause the phenomenon, the choice of starter-making way between artificial and mechanical cannot determine.In this paper, firstly, analysis and research the key technology in the first six links of starter making. At the same time, did a deeply experimental study and numerical simulation optimization on box cleaning process and hopper speed control methods. As the results, some key arguments were listed for hopper, installation angle, installation height, water supply pressure parameters for nozzles of cleaning were chosen, guided by the ANFIS tools in MATLAB.In this paper, the accepted starter qualified of the density of the distribution parameters as a starting point, and designed the density of starter stratification, zoneing density by the physics experiment. The key paramete integrated the density of starter purifying syrup effect and the degree of compaction, two important factors, density difference between center and border, and distribution law of the parameters in qualified starter were obtained.In order to get variations of purifying syrup effect and the compaction degree of starter in different compression speed, different moisture content, elastic lag, different repeat times of compression etc,. This paper organized a lot of compression density experiments, summarized the compression process of the law. As conclusiones, a group of starter-making procession parameters was aquired, in the current conditions.Research effortes were done to understanded the density distribution rule and improve purifying syrup result of starter, on pressure distribution, damp particle model, side pressure distribution experiment, side pressure coefficient of friction, etc. Combined with the macro physical experiment phenomenon, the mechanism of compression molding and purifying syrup was studied, at the microscopic level.In this paper, three kinds of experimental hammer designed, and were simulated by using PFC2D. One kind of perfect hummer with space curve surface was proposed, that result to compression and purifying syrup perfectively. The three kinds of experimental hammer were list as follows, flat hammer, bionic hammer, space surface hammer. The compression numerical model was corrected by simulating the compression process for flat hammer. By using the simulation tool, the last hummer was perfect to purifying syrup because its alternating role was very widespread.After test density distribution, the results of purifying syrup and the rule of density distribution were similar to the artificial way of starter making. Finally, integrateing three key technologies and particular peripheral constraints, in the factory of Fen-chiew Company, pilot production was done. The special hummer and the technological parameter were used simultaneously.The pilot production results showed that the densification effects of mechanical system equipment with the special hummer, the special fan cleaning nozzle and the special hopper of developed by research group, was similar to the artificial way and was superior to the current technological parameter.