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US 8,845,324 B2Granted
Device for controlling regenerative burners
AssigneeFives Stein
InventorPatrice Sedmak
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AssigneeFives Stein
InventorPatrice Sedmak
Estimating the term…
The invention relates to a device for controlling regenerative burners used as a firing device, particularly for iron and steel product heating furnaces or for radiating tubes for continuous strip steel processing lines, according to which the supply of at least one of the fluids involved in the combustion (fuel and comburent) is carried out through a rotary injector (12) rotating by means of a rotatable actuator (M) so as to supply fluid alternately to one and then the other of the burners (B1, B2), the rotary injector (12) being placed on the comburent inlet duct (6), particularly air, and is provided to partially obstruct the supply pipe (19.1; 19.2) to the burner (B1; B2) such that one portion of the fumes from a regenerator (2.2; 2.1) for the non-operating burner (B2; B1) is led to the operating burner (B1; B2) and such that the other portion of the fumes is discharged to the stack.
A device for controlling regenerative burners used as firing equipment for furnaces to reheat steel making products or radiant tubes for lines for the continuous treatment of steel strip, wherein at least one of the fluids involved in combustion, a fuel and an oxidant, is supplied using a rotary injector having rotating injection nozzle which is rotated by a rotary actuator so as to supply one of the burners then the other, in turn, the inlet of air and the outlet of flue gases for a burner are performed by one and the same supply piping, the rotary injector is positioned on the inlet pipe for oxidant, and the rotating injection nozzle is configured to partially block the supply piping leading to the burner so that some of the flue gases from a regenerator of the burner that is switched off are drawn toward the burner that is switched on and the other proportion of the flue gases is discharged to the exhaust.
A device for controlling regenerative burners used as firing equipment for furnaces to reheat steel making products or radiant tubes for lines for the continuous treatment of steel strip, wherein an oxidant is supplied using a rotary injector having rotating injection nozzle which is rotated by a rotary actuator so as to supply one of the burners then the other, in turn, the inlet of air and the outlet of flue gases for a burner are performed by one and the same supply piping, the rotary injector is positioned on the inlet pipe for oxidant, and the rotating injection nozzle is configured to partially block the supply piping leading to the burner so that some of the flue gases from a regenerator of the burner that is switched off are drawn toward the burner that is switched on and the other proportion of the flue gases is discharged to the exhaust, wherein the rotary injector is configured with a rotational position in which the oxidant from the inlet pipe is cut off from both burners.
A device for controlling regenerative burners used as firing equipment for furnaces to reheat steel making products or radiant tubes for lines for the continuous treatment of steel strip, wherein a fuel is supplied using a rotary injector having rotating injection nozzle which is rotated by a rotary actuator so as to supply one of the burners then the other, in turn, the inlet of air and the outlet of flue gases for a burner are performed by one and the same supply piping, the rotary injector is positioned on the inlet pipe for the fuel, and the rotating injection nozzle is configured to partially block the supply piping leading to the burner so that some of the flue gases from a regenerator of the burner that is switched off are drawn toward the burner that is switched on and the other proportion of the flue gases is discharged to the exhaust, wherein the rotary injector is configured with a rotational position in which the fuel from the inlet pipe is cut off from both burners.
Dependencies are inferred from the claim text.