Summary
The application of the Storage Drying with Mixing Method to the rice drying facility was discussed by using two types of practical drying bin, round type and conventional type.HomePage
1) Mixing the half dried paddy and the high moisture paddy just received in the facility, the moisture content of both paddy became the average value. The standard deviation of the moisture content distribution decreased gradually after the mixing. Therefore, since the high moisture paddy is dried fairly rapidly, the rice quality can be kept by this method.
2) The mixing method was examined also by using the equipped storage bin in usual drying facility (called DS bin). The high and the low moisture content paddy was mixed by the rotation process ; the fairly uniform moisture distribution then could be obtained with the moisture transfer between paddy kernels. Therefore, the DS bin can be used for the application of this method.
3) The change of paddy moisture content was simulated in case that the storage drying with mixing is adopted by using the measured conditions, for example air flow rate, moisture content of received paddy and working time of the drying bin. Since the actual change and the simulated result were quite similar, it became clear that the optimization of the drying facility can be discussed by using the simulation program developed by the authors.