Drying hopper as well as grinding and drying plant comprising such
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United States of America Patent
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Nov 15, 2022
Grant Date -
Dec 17, 2020
app pub date -
Dec 6, 2018
filing date -
Dec 7, 2017
priority date (Note) -
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status (Latency Note)
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Abstract
A drying hopper for drying granular material includes a hopper casing defining a plenum chamber for granular material, and an upper part and a bottom part. The hopper also includes a material inlet for the granular material arranged in the upper part; a material outlet port at the bottom part; a component for introducing hot drying gas into the hopper casing; and a gas outlet arranged in the upper part. The component for introducing hot drying gas includes gas pipes arranged to extend substantially vertically in the upper part, each gas pipe having a gas outlet port at its lower end and being connected at its upper end to an annular gas duct having a gas inlet for receiving a flow of drying gas, the gas pipes being distributed on the annular gas duct.
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