Cooling device for coal burner.

摘要

1. Device for cooling a coal burner with an air-cooled hollow casing (1), which is provided with a guide plate (8) directing the air to and from in the longitudinal direction of the hollow casing and/or with deflecting plates (9, 10) directing the air into a spiral path, the deflecting spirals being arranged of opposite hand on the two sides of the guide plate and the air outlet from the hollow casing being connected with the air inlet (30) of the burner ; characterised in that the burner has a ceramic cladding (11) with a mean thermal capacity of 0.2-0.3 kcal/kg and degree Kelvin and a thickness of 10-50 mm and the burner cooling amounts to between 200 and 300 Watts/m**2 and degree Kelvin, with a firebox load of 0.3-0.7 MW/m**3 .