HERMETIC STORE OF RAW ROUGH RICE

为了保证糙米原料的临时安全储存，在对糙米进行初步密封贮存试验时，由于厌氧真菌的发酵作用，糙米的质量变化更大。作为一种改进方法，本研究采用了谷物减湿降温的方法。试验于1986年至1988年进行，试验时间为3年，试验装置为谷物容器、除湿机和空气管道相结合的装置。少量的进气气使排风侧内壁表面的露珠凝结，受潮的谷物吸收了露珠而发霉，其谷物沾染了斑纹。循环空气中O_2和CO_2的重量比与大气中相同，因此需要注意促进好氧真菌繁殖的露水。然后曝气方向由上向下转变。在最后一年，将500公斤左右的糙米放在离地1米的高度，调节空气流速，每100公斤大米约0.025m^3/s。通过87.5 h后，27.5%的初始水分降至15%，平均干燥速率为0.12%h。除湿机产生的热量几乎全部消耗在进气口一侧的顶部空间，快速的减湿和上层温度的下降产生了特征效果。因此，为了避免裂缝，翻过来说“旋转”通常是必不可少的。降低1 kg水分耗电量为0.992 kwh （3.573MJ）。

When having a preliminary test for hermetic store on purpose to make sure of temporary safe store for the raw rough rice, there was a worse change in quality because of fermentation caused by the anaerobic fungi. As an improvable means to it, moisture reduction and temperature fall of the grain were taken up in this study. The experiments were carried out using the apparatus combined a grain container and a dehumidifier with the air pipes for three years from 1986 through 1988.A small quantity of aeration to the grain layer condensed the dew on the surface of inside wall on the side of exhaust, the moist grain absorbed it got musty, and its grain was contaminated with spotted patterns. The weight proportion of O_2 and CO_2 in the circulating air was the same one as it in the atmosphere, so it needed to pay attention on the dew that made promote multiplication of the aerobic fungi. Then the direction- of aeration changed from up to down.At the final year, the rough rice of about 500 kg was charged in the height of 1 m above the floor, and an air flow rate was regulated so as to be about 0.025m^3/s per 100 kg grain. 27.5% of the initial moisture reduced to 15% level after 87.5 hours through, the mean drying rate was 0.12%h. The quantity of heat which enerated in the dehumidifier was almost consumed in a head space on the side of intake, rapid moisuture reduction and temperature fall in the upper layer made characteristic results. Turning over saying "Rotation" usually was, therefore, indispensable to avoid the crack. The electric power consumed for reducing 1 kg of moisture was 0.992 kwh (3.573MJ).