초록 ▼

An oil/slurry burner with injection atomization for the gasification of solids-containing liquid fuels under high pressures of e.g. 80 bar (8 MPa) and high temperatures of e.g. 1200 to 1900 degrees centigrade in reactors with liquid slag removal is proposed, wherein a plurality of feeding elements d

An oil/slurry burner with injection atomization for the gasification of solids-containing liquid fuels under high pressures of e.g. 80 bar (8 MPa) and high temperatures of e.g. 1200 to 1900 degrees centigrade in reactors with liquid slag removal is proposed, wherein a plurality of feeding elements disposed outside the annular duct concentrically with respect to the burner axis are provided for introducing liquid fuel and atomizing agent, the individual feeding elements being implemented intrinsically straight in the burner, inclined to the burner axis in the direction of the burner mouth, and ending at the burner mouth adjacent to the oxidant outlet. By introducing the liquid fuel and atomizing agent in individual completely implemented tubes with a corresponding nozzle, different fuels can be supplied simultaneously via the individual feeds and converted in a flame reaction.

대표청구항 ▼

1. An oil/slurry burner with injection atomization for the gasification of solids-containing liquid fuels, comprising: a cooled housing, wherein a coiled tube provides cooling;a pilot burner section centrally arranged in the cooled housing comprising a pilot burner passageway, comprising a separate

1. An oil/slurry burner with injection atomization for the gasification of solids-containing liquid fuels, comprising: a cooled housing, wherein a coiled tube provides cooling;a pilot burner section centrally arranged in the cooled housing comprising a pilot burner passageway, comprising a separate pilot burner section cooling system;an annular passageway arranged in the cooled housing concentric with the pilot burner passageway and comprising an annular passageway outlet disposed at a downstream end of the oil/slurry burner, where the annular passageway supplies an oxidant, wherein the annular passageway is cooled by a separate annular passageway cooling system;a plurality of supply tubes concentrically arranged outside the annular passageway, wherein each of the supply tubes delivers a liquid fuel flow to a supply tube outlet disposed at the downstream end of the oil/slurry burner adjacent to and radially outward of the annular passageway outlet, wherein the individual supply tubes are implemented mutually straight and are inclined radially inward toward a longitudinal axis of the burner in a direction of the oil/slurry burner downstream end; andan atomizing agent feeding element that supplies an atomizing agent to the liquid fuel, comprising an atomizing agent feeding element outlet disposed at the downstream end of the oil/slurry burner;wherein the annular passageway, the supply tubes, and the atomizing agent feeding element are configured to keep the oxidant, the liquid fuel flow, and the atomizing agent discrete from each other throughout the oil/slurry burner. 2. The oil/slurry burner as claimed in claim 1, wherein the atomizing agent feeding elements comprises an annular supply passageway, and the supply tubes are arranged in the annular supply passageway. 3. The oil/slurry burner as claimed in claim 2, wherein the annular supply passageway and the supply tube cross section narrow from the burner inlet to the oil/slurry burner downstream end. 4. The oil/slurry burner as claimed in claim 3, wherein the annular passageway has swirl devices that impart a rotating motion to the oxidant stream, thereby imparting a rotating motion to the single liquid-fuel/atomizing-agent/oxidant stream. 5. A method of operating an oil/slurry burner, comprising: providing a cooled housing, wherein a coiled tube provides cooling, the cooled housing having a pilot burner section centrally arranged in the cooled housing, wherein the pilot burner comprises a pilot burner passageway and a separate pilot burner section cooling system; arranging an annular passageway in the cooled housing concentric with the pilot burner passageway and comprising an annular passageway outlet disposed at a downstream end of the oil/slurry burner, where the annular passageway supplies an oxidant and wherein the annular passageway is cooled by a separate annular passageway cooling system;providing a plurality of supply tubes concentrically arranged outside the annular passageway, wherein each supply tube introduces a liquid fuel flow to a supply tube outlet disposed at the downstream end of the oil/slurry burner adjacent to and radially outward of the annular passageway outlet, wherein the individual supply tubes are implemented mutually straight and are inclined radially inward toward a longitudinal axis of the burner in a direction of the oil/slurry burner downstream end, andproviding an atomizing agent feeding element that supplies an atomizing agent,wherein the supply tubes, the annular passageway, and the atomizing agent feeding element are configured to keep the oxidant, the liquid fuel flow, and the atomizing agent separate from each other throughout the oil/slurry burner. 6. The method as claimed in claim 5, wherein the atomizing agent feeding elements comprises an annular supply passageway, and the supply tubes are arranged in the annular supply passageway. 7. The method as claimed in claim 6, wherein the annular supply passageway and the supply tube cross sections narrow from the burner inlet to the oil/slurry burner downstream end. 8. The method as claimed in claim 7, wherein the annular passageway has swirl devices that impart a rotating motion to the oxidant stream, thereby imparting a rotating motion to the single liquid-fuel/atomizing-agent/oxidant stream. 9. A method for starting up an oil/slurry burner having a pilot burner passageway incorporated in the center of the oil/slurry burner, an annular passageway concentric with the pilot burner passageway and comprising an annular passageway outlet disposed at a downstream end of the oil/slurry burner wherein the annular passageway supplies an oxidant, a plurality of liquid fuel supply tubes disposed concentric with and radially outward of the annular passageway, each liquid fuel supply tube comprising a supply tube outlet disposed at the downstream end of the oil/slurry burner adjacent to and radially outward of the annular passageway outlet, wherein the liquid fuel supply tubes are angled radially inward toward a longitudinal axis of the burner, and a feeding element to supply atomizing agent, wherein the supply tubes, the atomizing agent feeding element, and the annular passageway are configured to keep the oxidant, the liquid fuel flow, and the atomizing agent separate from each other throughout the oil/slurry burner, the method comprising: cooling the oil/slurry burner with a separate coiled tube;cooling the pilot burner with a separate pilot burner cooling system cooling the annular passageway with a separate annular passageway cooling system;igniting the pilot burner under reducing reactor atmosphere and at slightly elevated system pressure; andincreasing a reaction pressure to the operating pressure necessary for igniting the oil/slurry burner, as the pilot burner output increases. 10. The method as claimed in claim 9, wherein the atomizing agent feeding elements comprise an annular supply passageway, and the supply tubes are arranged in the annular supply passageway. 11. The method as claimed in claim 10, wherein the annular supply passageway and the supply tube cross sections narrow from the burner inlet to the oil/slurry burner downstream end. 12. The method as claimed in claim 11, wherein the annular passageway has swirl devices that impart a rotating motion to the oxidant stream, thereby imparting a rotating motion to the single liquid-fuel/atomizing-agent/oxidant stream.