抄録
The automatic rice husker which has beed widely in Japan consists of some unit processes so called husking, separating and elevating units. The unhulled rice grains are fed through in these units and are changed into the rough rice grains. The static and dynamic characteristics of these unit processes are represented by Ki and Gi, which are the static gain constant and the time behaviour of grain flow rate respectively. The process system of a test husker (3 inch width rubber roll type) is shown by a block diagram.
Results of some experiments on static relationships between various operating conditions of each unit process and grain feed rate are stated in this report. Ki varies by grain flow rate as well as operating conditions because the husking ratio is the system parameter. To determine the grain flow rate and Ki at given operating conditions of the husker, the mathematical models are introduced from these results.
The dynamic characteristics of each unit process shall be reported in the next paper.
