Reducing the rate of broken rice and increasing the rate of whole rice have become a way to improve the comprehensive economic benefits of enterprises. The higher the temperature of the rice mill is, the more broken rice is produced. This is a common phenomenon in rice factories. In the process of rice milling, the sand roller grinds the surface of the rice grain to remove the crust layer and the rice grains in the whitening chamber are subjected to friction and collision, which will generate a large amount of heat, so that the surface temperature of the rice grain is increased.
Due to the poor thermal conductivity of the rice grains and the slower inward transfer of the surface temperature of the rice grains, a temperature gradient (temperature difference) is formed from the outside to the inside. A large temperature difference causes thermal stress to be generated inside the rice grains, and the thermal stress exceeds the inherent strength of the rice grains. The rice ruptures or bursts. The structure of the traditional rice machine determines that the rice machine has a large ventilation resistance, and the air volume passing through is small, and it is difficult to suppress the rice temperature from rising during the rice milling process to produce broken rice. Achieving low-temperature rice milling and inhibiting the rise of rice temperature is an effective method to reduce cockroaches.
공기 투과량을 늘리면 저온 상승을 달성하고 쌀 가공률을 높일 수 있습니다. 저온 상승 쌀은 백색화 챔버에 분사된 바람을 통해 쌀알 층을 통과시켜 연삭으로 발생하는 열을 제거하여 쌀 온도 상승을 억제하는 방법입니다. 따라서 저온 상승 쌀 가공기계의 핵심 기술은 쌀 기계의 자체 공기 송풍기의 풍압과 공기량을 증가시키고, 백색화 챔버 전면에 분사되는 바람의 저항을 줄이며, 단위 출력당 백색화 이동 구역의 환기량을 늘리는 것입니다.