System and method for cogeneration from mixed oil and inert solids, furnace and fuel nozzle for the same

A nozzle assembly for feeding a mixture of solid particulates and oil to a combustion location under pressure comprising:

• a screw feed that rotates at a predetermined rate to direct the mixture from a source location down a screw feed casing to a tip from which the mixture is ejected, the screw feed extending an entire length of the screw feed casing;
• a plurality of air ports surrounding the tip, at a location external of the screw feed casing that direct pressurized air in a selected quantity into the mixture as it is ejected from the tip;
• an igniter that directs a pilot flame into the mixture as it is elected from the tip;
• and
• a nozzle cone that is disposed about the tip and that extends beyond the air ports;
• wherein the nozzle cone comprises a distal conical section and an annular port section that is proximal to and contiguous with said conical section, an entirety of the conical section extending beyond all of the plurality of air ports and the annular port section supporting the plurality of air;
• wherein the ports are tilted angularly with the angle of tilt substantially matching the pitch of the conical section.

A nozzle assembly for feeding a mixture of solid particulates and oil to a combustion location under pressure comprising:

• a screw feed that rotates at a predetermined rate to direct the mixture from a source location down a screw feed casing to a tip from which the mixture is ejected, the screw feed extending an entire length of the screw feed casing;
• a plurality of air ports surrounding the tip, at a location external of the screw feed casing that direct pressurized air in a selected quantity into the mixture as it is ejected from the tip;
• an igniter that directs a pilot flame into the mixture as it is ejected from the tip;
• and
• a nozzle cone that is disposed about the tip and that extends beyond the air ports;
• wherein the nozzle cone comprises a distal conical section and an annular port section that is proximal to and contiguous with said conical section, an entirety of the conical section extending beyond all of the plurality of air ports and the annular port section supporting the plurality of air;
• wherein the ports have both a radial tilt relative to the lead screw longitudinal axis and an axial tilt relative to the lead screw longitudinal axis.

A nozzle assembly for feeding a mixture of solid particulates and oil to a combustion location under pressure comprising:

• a screw feed that rotates at a predetermined rate to direct the mixture from a source location down a screw feed casing to a tip from which the mixture is ejected;
• a plurality of air ports surrounding the tip, at location external of screw feed casing that direct pressurized air in a selected quantity into the mixture as it is ejected from the tip;
• an igniter that directs a pilot flame into the mixture as it is ejected from the tip;
• wherein the air ports comprise a plurality of discrete directional ports interconnected with respective conduits;
• wherein the directional ports are interconnected, respectively with selectively controlled air sources;
• and a controller that controls air flow through respective of the air ports so as to direct the pressurized air in a directional pattern.