Taxation and Wage Subsidies in a Search-Equilibrium Labor Market

A ceramic gas burner for a combustion chamber of a hot-blast stove of a blast furnace has parallel vertical supply ducts (1,2) for the two combustion components (gas and air). One duct (1) opens upwardly at a first outlet opening (3) which is rectangular in shape. The second duct (2) opens at second outlet openings (5) which are on each side of and above the first outlet opening (3) and whose outflow directions are oblique to that of the first outlet opening (3). Recesses (8) extend in each long side of the first opening (3) towards the second openings (5). To improve the mixing of the two components, opposite each recess (8) there is another such recess (8) in the other long side of the opening (3).