为了保持大米的食用品质和新鲜度,设想利用分子筛富氮机,制取比较纯净、干燥的氮气,定期或不定期置换与净化粮桩内陈、湿气体,借以达到大米安全渡夏。本试验在1982年3月～10月进行,历时7个月,经过夏季高温考验,获得了较好的效果,经试验的水份16.6%的34万斤标一粳米,桩湿、气体均能控制在一定程度,既未发现袋皮白霉 In order to maintain the edible quality and freshness of rice, it is envisaged that molecular sieve nitrogen-enriching machine will be used to produce relatively pure and dry nitrogen, and regular or irregular replacement and purification of Chen and moisture in the grain piles will lead to safe rice crossing. The experiment was carried out in March-October 1982 and lasted for 7 months. After the summer high temperature test, good results were obtained. The tested moisture of 16.6% Control to a certain extent, neither bag white mold