| 摘要 |
<p>An industrial furnace comprises a furnace chamber (20) for receiving combustion tables (32) having one or more levels (32.1, 32.2, 32.3, 32.4) for combustible material, and burners (38, 40) arranged so that they fire in a chamber (36) below the lowermost level. Preferred Features: The burners are arranged on opposite-lying walls or on all the walls of the furnace chamber. The furnace also includes auxiliary burners (42) arranged so that they fire in a chamber above the lowermost level of the burner tables. The auxiliary burners are arranged at different distances from the base of the furnace chamber. The energy performance of the auxiliary burners to the total energy performance of the industrial furnace is less than 30%. The furnace is in the form of a hearth furnace.</p> |
