现在使用的钢砼，砖混、砖结构立筒仓都为透气性材料建成，钢板立筒仓虽不是透气性材料构成，但设计安装也未考虑气密性的问题，因而接口等处透气，对环流熏蒸防治储粮害虫、灭疫。气控储粮、双低储粮、抑制霉菌繁殖等都存在很大难题。天津市粮食局于1993年给我厂下达了科技攻 Currently used steel concrete, brick, brick vertical silos are made of breathable material, although the vertical steel silo structure is not made of breathable material, but the design and installation did not consider the issue of airtightness, so the interface, such as breathable, Circulation fumigation prevention and control of stored grain pests, epidemic. Gas-controlled grain storage, double low grain storage, inhibition of mold breeding and so there is a big problem. Tianjin Grain Bureau in 1993 to my factory issued a scientific and technological attack