Combustion device

Details Combustion device Combustion device

F - Mech Eng,Light,Heat,Weapons

23

K

110/19

F23K 3/02 (2006.01) F23C 3/00 (2006.01)

Patent

CA 1209408

TITLE OF THE INVENTION COMBUSTION DEVICE ABSTRACT OF THE DISCLOSURE: A combustion device, especially for slow-to- react pulverized coal or coal dust. The inventive device comprises the following combination of features: a blow lance, which supplies the coal dust and extends axially through a cylindrical or conical burner tube, and a twist device for the combustion air at the front end of the burner tube, a cap at the free discharge end of the blow lance for reversing the direction of flow of the coal dust outside the lance; a cylindrical or conical accelerator chamber which is disposed after the burner tube in the axial direction of the latter and which has a diameter at the transition from the burner tube to this chamber which is greater than the diameter of the burner tube at this transition and forms an enlargement and a shoulder; and a plurality of nozzles which are tangentially disposed in a plu- rality of cross-sectional planes arranged one after the other in the longitudinal direction of the accel- erator chamber; these nozzles, independently of one another, supply to the enlargement of the accelerator chamber gas or air while forming in this enlargement a twist flow.

447871

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