| 摘要 |
A method and apparatus for blending a mass of heterogeneous material including a first storage vessel having a material receiving port, a multiplicity of particulate solids withdrawal downcomers having inlet ports at the upper ends communicating at preselected vertically and circumferentially spaced apart locations with the first storage vessel and having outlet ports at the lower ends thereof communication with a second storage vessel having a material exiting port at a lower end thereof, and a multiplicity of particulate solids withdrawal downcomers having inlet ports at the upper ends communicating at preselected vertically and circumferentially spaced apart locations with the second storage vessel and having outlet ports at the lower ends thereof communicating with the material exiting port.
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