Patent ID: 7862333
Filing Date: 2011-01-04
Classification: F16K,F27D,F28C,F28F,Y10T

Abstract:
1. A device for regulating a flow cross section in cooling air inflows of a bulk material grate cooler for cooling a hot bulk material carried on a cooling grate, comprising: a regulator housing comprising a casing formed of solid material integrated into the cooling air inflow below the cooling grate, an actuating member comprising a hose sleeve formed of elastic material tension-mounted at both ends coaxially in the casing and arranged to move in such a way that a rise in a flow velocity in a region of the actuating member brings about a reduction in a free flow cross section of the cooling air inflow, and vice versa, and a pressure difference inside and outside the hose sleeve and a deformation resistance of the sleeve being set such that the hose sleeve is deformable from its maximum flow cross section into its minimum flow cross section by the pressure difference, wherein the cooling air flows through an inside of the hose sleeve, and at least one connecting port communicates with an annular interspace between an outside of the hose sleeve and an inside of the solid casing to introduce a gaseous pressure medium into the interspace.