Pulverized coal burner

Details Pulverized coal burner Pulverized coal burner

1997-05-23

1999-08-17

Lazarus, Ira S.

Furnaces

Utilizing powdered fuel

110104B, 110261, F23D 100, F23C 110

Patent

active

059377704

ABSTRACT:
A pulverized coal burner includes a venturi for contracting a flow of a mixture of pulverized coal and primary air toward a central axis of a fuel nozzle 2. A spindle having a cone is provided coaxially with the central axis and gradually expands from an upstream side to a downstream side to cause the mixture to impinge thereon and diffuse. A column extends from the cone and is parallel to the central axis of the fuel nozzle, and a cone extends from the column and gradually narrows from an upstream side to a downstream side. A flow path divider, having a cone gradually narrowing coaxially with the central axis on the downstream side of the spindle, and a cylinder extending from the cone and being coaxial and parallel with the central axis of the fuel nozzle 2, coaxially divides the flow path.

REFERENCES:
patent: 5199355 (1993-04-01), Larue
patent: 5231937 (1993-08-01), Kobayashi et al.
patent: 5431114 (1995-07-01), Morita et al.
patent: 5685242 (1997-11-01), Narato et al.
patent: 5806443 (1998-09-01), Kobayashi et al.

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