Pulverized coal combination burner

Details Pulverized coal combination burner Pulverized coal combination burner

F - Mech Eng,Light,Heat,Weapons

23

D

F23D 1/00 (2006.01)

Patent

CA 2630941

In the inventive burner for oxidant gasification of pulverized fuels under high pressures of e.g. 80 bar (8 MPa) and temperatures of e.g. 1200 to 1900 °C in reactors with liquid slag removal for oxygen gasification, the individual pulverized fuel supply tubes (4) in the burner are designed such that, while retaining the entry cross-sectional area of the tube, the cross-section makes a systematic transition to a curved rectangular duct (6) matched to the annulus. This means that fuel feeding ends immediately adjacent to the oxidant duct, and the flow rate provided in the feeding element is maintained up to the outlet, thereby ensuring trouble-free flow of the pulverized fuel and reducing the amount of inert gas required for purging the feeding element in the nonoperational state.

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