PULVERISED-COAL CONCENTRATOR, AND PULVERISED-COAL BURNER CONTAINING SUCH CONCENTRATOR Russian patent published in 2013 - IPC F23D1/02 

FIELD: power industry.

SUBSTANCE: pulverised-coal concentrator for a pulverised-coal burner, which is rigidly installed inside it, includes front part (102) and rear part (101). Front part (102) is made in the form of a bowl-shaped structure providing direction and concentration of a pulverised- coal-air flow. Rear part (101) is made in the form of a structure supporting proper spread of a zone of dense phase of a pulverised-coal-air flow. Rear part (101) is equipped at the edge of an outlet hole with toothed or petal structure. Pulverised- coal concentrator is made in the form of a fixed structure, i.e. front part (102) and rear part (101) are made as a whole entity. Front part (102) and/or rear part (101) are fixed, or pulverised-coal concentrator is made in the form of a detached structure, i.e. front part (102) and rear part (101) are made separately; front part (102) is connected to rear part (101), and front part (102) and/or rear part (101) are fixed, or front part (102) and rear part (102) are located at some distance from each other, and front part (102) and rear part (101) are fixed.

EFFECT: stabilisation of a combustion process.

16 cl, 13 dwg