| 摘要 |
A silo stores bulk, particulate solids within a vertically oriented, elongated hollow body section. The lower end of the body section is joined to the top of a hollow bottom section and extends downwardly, tapering to a bottom of the bottom section. Solids are introduced into the silo through an inlet and withdrawn through an outlet port proximate the bottom of the bottom section. A perforated, hollow, flow-directing tube is disposed vertically within the body and bottom sections and secured within the silo, so that the bottom of the tube straddles the outlet port. The perforated tube substantially eliminates the formation of arches or bridging during withdrawal of particulate solids from the silo. Bursts of noise known as "silo honking" which accompany the collapse of such bridges are thereby eliminated. The noise reducing method and mechanism are readily applied during construction and operation of new silos. The present techniques are well suited for use in retrofitting existing silos to minimize noise emission during delivery of particulate solids stored therein.
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