FLUIDIZED-BED FURNACE GAS DISTRIBUTOR CAP Russian patent published in 2006 - IPC F27B15/10 

FIELD: nonferrous metallurgy.

SUBSTANCE: invention related to production of magnesium by electrolysis of melted raw material, particularly, to dehydration of carnallite raw material in fluidized bed furnace. Invention is aimed at provision of constant flow rate of gases and prevention of clogging of caps by processes material and mixtures present in gases. Proposed gas distributor cap fluidized-bed furnace includes hearth with holes and caps installed in hearth holes. Novelty is that caps are fitted in hearth holes with clearance for displacement in vertical plane, being made in form of head and guided support provided with support height lifting limiter from bottom. Moreover, guide support of cap be made in form of tube with slots arranged under flay disk or in form of angle plate or in form of arc, and height of lifting of guide support is 1-10 mm. Wire, clamp or split pin can be used as support lifting height limiter. Ratio of diameter of hole in hearth to diameter of head of cap is 1:(1.1-1.8), clearance between wall of hole and guide of support is not less than 0.5 mm. Head of cap can be made in form of flat disk or sphere without holes.

EFFECT: increased capacity of gas distributor cap and furnace as a whole and service life of furnace, reduced labor input in making of caps.

9 cl, 1 ex, 4 dwg