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包打围仓在我国有几十年的应用历史,在解决仓容不足,露天储存方面发挥了巨大作用。在以往的应用中,总是将包打围麻袋墙当作不透风处理,而实际上漏气现象非常重,结果造成包打围上层四周风量严重不足,成为通风死角区,通风不彻底造成结露、生霉现象非常普遍。因此,在其通风系统设计中,需要研究麻袋墙与粮食的通风阻力比,以便确定通风笼的最佳位置,实现通风死角的最小化。试验通过模拟装置,模拟了在相同通风条件下,探索一定厚度的麻袋墙与多少厚度的粮食具有相当的通风阻力。其结果又用在包打围仓的通风系统中,对包打围仓通风储粮具有重大的指导意义。
Package fight in our country has decades of application history, in solving the shortage of storage capacity, open storage has played a significant role. In the past applications, always wrap around the sack wall as airtight treatment, but in fact the phenomenon of leakage is very heavy, resulting in a serious shortage of wind surrounded the upper and lower package to become a vented area of ventilation, ventilation is not completely caused by condensation, Moldy phenomenon is very common. Therefore, in its ventilation system design, it is necessary to study the ventilation resistance ratio of the sack wall to the grain in order to determine the optimum position of the ventilation cage and to minimize the ventilation dead zone. The experiment simulates the similar ventilation resistance of exploring the sack wall with a certain thickness under the same ventilation condition and how much the thickness of foodstuffs. The result is also used in the system of ventilation in the baling and storage. It is of great guiding significance for the baling and storage of ventilation and grain storage in the bays.