Tunnel kiln, and burner for use in a tunnel kiln
AssigneeWienerberger Ziegelindustrie Aktiengesellschaft
InventorWalter Linke
Life of this patent
Estimating the term…
Abstract
A tunnel kiln useful for burning vertically perforated green bricks, includes a furnace chamber; a plurality of tubular burners for heating the furnace chamber, with the burners defined by longitudinal axes which extend essentially in a vertical direction; and a transport device for so transporting green bricks in raster-like spaced-apart relationship in a travel direction through the furnace chamber that the perforations of the green bricks are oriented in a common direction. Each of the burners has a nozzle body formed with orifices for combustion gases, with the orifices defined by longitudinal axes which extend substantially in a direction of the perforations, wherein the nozzle body is positioned within a spacing between confronting end faces of neighboring green bricks.
Claims14
A tunnel kiln useful for burning vertically perforated green bricks, comprising:
- a furnace chamber;
- a plurality of tubular burners for heating the furnace chamber, said burners defined by longitudinal axes which extend essentially in a vertical direction;
- and
- a transport device for so transporting green bricks in raster-like spaced-apart relationship in a travel direction through the furnace chamber that the perforations of the green bricks are oriented in a common direction,
- wherein each of the burners has a nozzle body formed with orifices for combustion gases, said orifices defined by longitudinal axes which extend substantially in a direction of the perforations, said nozzle body positioned within a spacing between confronting end faces of neighboring green bricks, wherein the burners are configured as high-speed burners and have a core flow speed of 30 to 60 m/s.
A tunnel kiln useful for burning vertically perforated green bricks, comprising:
- a furnace chamber;
- a plurality of tubular burners for heating the furnace chamber, said burners defined by longitudinal axes which extend essentially in a vertical direction;
- and
- a transport device for so transporting green bricks in raster-like spaced-apart relationship in a travel direction through the furnace chamber that the perforations of the green bricks are oriented in a common direction,
- wherein each of the burners has a nozzle body formed with orifices for combustion gases, said orifices defined by longitudinal axes which extend substantially in a direction of the perforations, said nozzle body positioned within a spacing between confronting end faces of neighboring green bricks,
- wherein each of the burners has an outer tube formed with the orifices and closed at its lower end in the area of the nozzle body, an inner tube received in the outer tube and having a lower end disposed above the nozzle body, and a disk-shaped mixer closing the lower end of the inner tube.
A tunnel kiln useful for burning vertically perforated green bricks, comprising:
- a furnace chamber;
- a plurality of tubular burners for heating the furnace chamber, said burners defined by longitudinal axes which extend essentially in a vertical direction;
- and
- a transport device for so transporting green bricks in raster-like spaced-apart relationship in a travel direction through the furnace chamber that the perforations of the green bricks are oriented in a common direction,
- wherein each of the burners has a nozzle body formed with orifices for combustion gases, said orifices defined by longitudinal axes which extend substantially in a direction of the perforations, said nozzle body positioned within a spacing between confronting end faces of neighboring green bricks, wherein the nozzle body is sized sufficient to cover a height of the green bricks and has a length of 340 mm with eight orifices.
Dependencies are inferred from the claim text.