Processing method of rice seeds

Abstract

The invention discloses a processing method of rice seeds. The processing method comprises the following steps: (1) performing preliminary cleaning, i.e., selecting rice with full grains, and performing preliminary cleaning on the rice by using a cleaner; (2) drying, wherein drying treatment is required to be performed if the moisture is overlarge when the rice seeds are conveyed into a factory, a hot air type rice seed dryer is selected and used, the hot air temperature of the dryer is set to be 35-39 DEG C, and the rice seeds are kept in the dryer until the moisture content of the rice seeds is less than 6-7 percent; (3) deawning, wherein the rice seeds are required to be deawned by using arch teeth of a deawner in order to guarantee that wobble plate sowing is performed during sowing; (4) carefully selecting, wherein the rice seeds are subjected to air classification and screening by using an air screen type seed cleaner, so that the rice seeds reach the national standard; (5) separating brown rice to ensure that the brown rice rate in the rice seeds does not exceed 0.2 percent; (6) coating and packaging. The processing method can realize low-temperature drying of the rice seeds, and the coating treatment is performed, so that the germination rate and the storage time of the seeds can be improved, the production efficiency of the seeds is also improved; the drying temperature is controllable; the processing method can be widely applied to treating various seeds.

Description

technical field [0001] The invention relates to a processing method of rice seeds. Background technique [0002] The main food crops in China are rice and wheat. Rice seeds have a certain life span. After harvesting, the rice seeds are naturally dried or artificially heated and dried. Because the germ in the rice seeds is very fragile, according to the survey, the germination rate of rice seeds is the same as that of Drying temperature and storage time are negatively correlated; usually, if stored under normal conditions for more than one year, the germination rate will be lower than 80%. At present, the more common method is to dry naturally or artificially, and then perform coating treatment. The cost of the more advanced freeze-drying method and desiccant drying method is quite high, only a small amount of seeds can be processed, and the operation is time-consuming and cumbersome, so it cannot be used in the production practice of rice seeds on a large scale. Although the...

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Problems solved by technology

[0002] The main food crops in my country are rice and wheat. Rice seeds have a certain life span. After harvesting, the rice seeds are naturally dried or artificially heated and dried. Because the germ in the rice seeds is very fragile, according to the survey, the germination rate of rice seeds is the same as that of Drying temperature and storage time are negatively correlated; usually, if stored under normal conditions for more than one year, the germination rate will be lower than 80%. At present, the more common method is to dry naturally or artificially, and then perform coating treatment. The cost of the more advanced freeze-drying method and desiccant drying method is quite high, only a small amount of seeds can be processed, and the operation is time-consuming and cumbersome, so it cannot be used in the production practice of rice seeds on a large scale. Although the cost of natural drying is low, it can The production cycle is very long, which is not conducive to the large-scale production of rice seeds. Therefore, how to solve the processing methods of rice seeds that are fast, controllable, and convenient for storage is still an important issue that plagues the development of agricultural modernization.

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