Method of designing gas-solid separator

Details Method of designing gas-solid separator Method of designing gas-solid separator

2007-07-05

2011-12-06

Greene, Jason M (Department: 1776)

Gas separation

With concentrate backflow or re-entrainment preventing means

Baffle intermediate concentrate collector zone and gas...

C055S452000, C055S440000, C055S459300, C055S447000, C055S337000, C055S427000, C055SDIG030, C422S147000

Reexamination Certificate

active

08070846

ABSTRACT:
A method for operating a gas-solid separator that has: an inner cylinder10having a closed lower end11and an opened upper end1, and extending in a vertical direction; an outer cylinder2that coaxially covers the inner cylinder10from the outside and has a gas vent port6formed on the upper end side of the inner cylinder and communicating with an exterior; and a plurality of axially extending long holes4having a length L[m] and formed on a side surface on the lower end11side of the inner cylinder10in a circumferential direction, one of long side edge parts of each of the long holes being provided with a guide blade5that protrudes outward and is inclined circumferentially so as to cover the long hole4, wherein the length L of each long hole4is defined such as to satisfy an expression of non-dimensional Stokes number St=(ρpdp2/(18μ))·U/L≧0.3, where U[m/s] represents a cross-sectional average linear velocity of a mixture of gas and solid particles that is supplied downward from the opening1of the inner cylinder4, ρp[kg/m3] a particle density of the solid particles, dp[m] an average particle diameter of the solid particles, and μ[Pa·s] a viscosity of the gas.

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