Cyclone separator including a hopper formed by water-steam cooled walls

Claim 1

A cyclone separator comprising an inner cylinder; a plurality of tubes, the intermediate portions of said tubes extending vertically and circumferentially in a parallel relationship to form an outer cylinder extending around said inner cylinder in a coaxial relationship to define an annular chamber between said cylinders, the upper end portions of aid tubes being bent radially inwardly to form a roof section, and the lower end portions of said tubes being bent radially inwardly to form a conical shaped hopper section; a first ring header connected to the upper ends of said tubes; a second ring header connected to the lower ends of said tubes; means for passing water or steam or a water and steam mixture through said ring headers to circulate said water or steam or water and steam mixture through said tubes to cool said separator; and means for directing gases containing solid particles through said annular chamber for separating the solid particles from said gases by centrifugal forces, the separated gases exiting through said inner cylinder and the separated solids falling to the bottom of said hopper section for disposal or recycle.