论文部分内容阅读
应用机机通风技术保管粮食具有很多优越性,是实现低温储藏的有效措施,正在全县范围内大量推广应用.目前,使用最多,效果较好的是地槽式机械通风,选用的通风机一般为中压离心式通风机,常用的主要有4-72-11-4.5A型和4-72-116A型两种.据我县实践证明,采用地槽式离心通风机通风,降温速度快,能有效地利用干冷时机,把粮温降下来,实现低温保藏.但这种方法对我们山区县来说,由于多数基层粮管所、库缺乏高压三相电
The application of machine ventilation technology has many advantages of storing food, is an effective measure to achieve low-temperature storage, is widely used within the county wide application.At present, the most used, the effect is better to slot mechanical ventilation, the general use of the fan For the medium-pressure centrifugal fan, commonly used mainly 4-72-11-4.5A type and 4-72-116A type 2. According to the practice in our county proved that the use of ground-type centrifugal fan ventilation, cooling speed, Can effectively use the dry-cold time, the grain temperature down, to achieve low-temperature preservation.But this method for our mountain counties, the majority of grassroots food barn, the lack of high-voltage three-phase power