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US 4,067,940 AGranted
Method of continuously heating limestone-mud
OwnerPeter van Boxtelinventor
Life of this patent
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Abstract
The present invention provides in a method of continuously heating limestone-mud, particularly the calcination of the limestone-mud to form lime, which method comprises continuously passing the mud through a refractory lined chamber where it is contracted with hot gases, the improvement in which the mud is passed through the chamber as at least one continuous self-sustaining column, the hot gases contacting the outer periphery of the column. The invention also provides an apparatus for use in said method.
Claims6
A method for heating limestone-mud consisting of the steps of:
- extruding a column of limestone-mud having a solid content of from 60 to 70% with the remaining content water, about a tubular member disposed within an extrusion tube and through an opening in one wall of a refractory chamber;
- continuing the extrusion of said limestone-mud about said tubular member with the simultaneous advancement of the limestone-mud and tubular member through the interior of said chamber with said limestone-mud forming a self-sustaining column about said tubular member within said chamber interior;
- admitting heated gases into said chamber in contact with said advancing column to heat said limestone-mud;
- further continuing the extrusion of said limestone-mud and advancement of said tubular member to pass said tubular member and its surrounding self-sustaining column through an opening in an opposite wall of said chamber and to a position external of said chamber, and removing said column from said tubular member external of said chamber.
1 more element
A method for heating limestone-mud consisting of the steps of:
- extruding a column of limestone-mud having a solid content of from 60 to 70% with the remaining content water, about a tubular member having a splitter member disposed on the end thereof, said tubular member being disposed within an extrusion tube and through an opening in one wall of a refractory chamber;
- continuing the extrusion of said limestone-mud about said tubular member with the simultaneous advancement of the limestone-mud and tubular member through the interior of said chamber with said limestone-mud forming a self-sustaining column about said tubular member within said chamber interior;
- admitting heated gases into said chamber in contact with said advancing column to heat said limestone-mud;
- further continuing the extrusion of said limestone-mud and advancement of said tubular member to pass said tubular member and its surrounding self-sustaining column through an opening in an opposite wall of said chamber and to a position external of said chamber, and further continuing said step of extruding said limestone-mix to pass said column through said opening in said opposite wall of said chamber to cause passage of said column along said tubular member external of said chamber to urge said heated limestone-mud passing out of said chamber to contact said splitter member and become detached from said tubular member.
1 more element
Dependencies are inferred from the claim text.