Combined sulphur burning furnace and boiler
AssigneeC-I-L Inc.
InventorsGordon M. Cameron, John McFarland
Life of this patent
Estimating the term…
Abstract
A combined sulphur burning furnace and water-cooled boiler arrangement for producing a cooled, gaseous sulphur dioxide-air mixture in which the furnace is located below the boiler tubes arrangement in a vertical, cylindrical shell. The hot gases produced in the furnace exit axially into an upper chamber defined by the water-tube arrangement and pass through the cooling water-tube arrangement in radial outward flow to an outer chamber provided with cold-side by-pass control means and then exit the shell. The apparatus provides for savings in ducting, foundations, piping and the like; and permits more efficient sulphur burning and cooling.
Claims6
Apparatus for producing a cooled, gaseous sulphur dioxide-air mixture comprising an external shell of a strong heat resistant material;
- sulphur burning means to provide an upwardly directed axial flow of a hot, gaseous sulphur dioxide-air mixture within said external shell;
- a plurality of water-cooled boiler tubes within said external shell and so arranged as
- (a) to define an upper inner chamber above said sulphur burning means to receive said hot gaseous mixture in axial flow from said sulphur burning means,
- (b) to define with said external shell an upper outer chamber to receive said gaseous mixture from said upper inner chamber by radial outflow, and
- (c) to permit said radial outflow of said gaseous mixture from said upper inner chamber to said upper outer chamber and to effect cooling of said gaseous mixture;
- and cooled gaseous mixture exit means.
Apparatus for producing a cooled gaseous sulphur-dioxide mixture comprising
- (i) foundation means;
- (ii) an external, vertical cylindrical shell of a strong, heat resistant material supported on said foundation means;
- (iii) an inner shell of heat resistant material defining a sulphur burning lower chamber within a lower part of said external shell and supported on said foundation means and wherein sulphur is burned in air to provide an upward axial flow of hot, gaseous sulphur dioxide-air mixture;
- said inner shell and said external shell defining a circumferential sweep passage the height of said inner shell;
- (iv) means for injecting air into said lower chamber and through said sweep passage;
- (v) means for injecting molten sulphur into said lower chamber;
- (vi) a plurality of water-cooled boiler tubes axially arranged within said external shell above said inner shell so as
- (a) to define an upper inner chamber to receive said hot gaseous mixture in axial flow from said lower chamber;
- (b) to define with said external shell an upper outer chamber to receive said gaseous mixture by radial outflow from said upper inner chamber;
- and
- (c) to permit said radial outflow of said gaseous mixture from said upper inner chamber to said upper outer chamber and to effect cooling of said gaseous mixture;
- (vii) gaseous mixture flow control means within said outer chamber;
- and
- (viii) cooled, gaseous mixture exit means.
Dependencies are inferred from the claim text.