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US 8,376,681 B2Granted
Charging device for a shaft furnace
AssigneePaul Wurth S.A.
InventorsGuy Thillen, Jeannot Loutsch, Guy Wagner
Life of this patent
Estimating the term…
Abstract
A charging device for charging a shaft furnace, including a rotary distributor and a variable drive for rotating the rotary distributor about an essentially vertical axis of rotation, where the rotary distributor includes a plurality of guiding members which form sliding channels for charge material, and where the rotary distributor comprises a junction slide from which each guiding member issues and which is arranged such that a flow of charge material slides via one specific guiding member in function of the velocity and/or the sense of rotation of the rotary distributor.
Claims19
A charging device for charging a shaft furnace, comprising
- a rotary distributor comprising a plurality of sliding channels joined by a junction slide from which each of said plurality of sliding channels extends;
- a variable drive for rotating said plurality of sliding channels about an essentially vertical axis of rotation with an adjustable velocity,
- wherein said junction slide is arranged and shaped such that said sliding channels are individually selectable for a flow of charge material based on at least one of the adjustable velocity and rotational direction of said rotary distributor, as actuated by said variable drive,
- wherein the length and/or inclination of at least two of said plurality of sliding channels are arranged to lead charge material to a different annular area of a charging surface,
- wherein outputs of a totality of said plurality of sliding channels extending from said rotary distributor are positioned to extend into an area covering at most 180° of an angular sector taken about an essentially vertical axis of rotation of said plurality of sliding channels, and
- wherein said plurality of sliding channels includes three or more sliding channels.
3 more elements
A charging device for charging a shaft furnace, comprising a rotary distributor, said distributor comprising:
- a plurality sliding channels having a length and/or inclination configured to lead charge material to a different annular area of a charging surface;
- an admission portion for receiving charge material;
- and
- a junction slide having a downstream perimeter from which each sliding channel extends and an upstream perimeter to which said admission portion is joined, said junction slide providing a surface through which each of said sliding channels communicates with said admission portion;
- a variable drive for rotating said plurality of sliding channels about an essentially vertical axis of rotation with an adjustable velocity,
- wherein said device is arranged such that said sliding channels are individually selectable for a flow of charge material based on at least one of the adjustable velocity and a rotation of said rotary distributor, as actuated by said variable drive,
- wherein outputs of a totality of said plurality of sliding channels extending from said rotary distributor are positioned to extend into an area covering at most 180° of an angular sector taken about an essentially vertical axis of rotation of said plurality of sliding channels,
- wherein said plurality of sliding channels includes three or more sliding channels.
5 more elements
A blast furnace comprising a charging device, said charging device comprising:
- a rotary distributor comprising a plurality of sliding channels joined by a junction slide having a downstream perimeter portion from which each guiding member originates;
- a variable drive for rotating said rotary distributor about an essentially vertical axis of rotation, with an adjustable velocity,
- wherein said charging device is arranged such that said sliding channels are individually selectable for a flow of charge material slides based on at least one of the adjustable velocity and a rotation of said rotary distributor, as actuated by said variable drive,
- wherein at least one of said sliding channels comprises an elbow shaped deflector section for charging the central area of a charging surface, said elbow shaped deflector section comprising a transverse deflector plate, a lower deflector plate and lateral side walls and an opening defined by said side walls and said junction slide.
1 more element
A charging device for charging a shaft furnace, comprising
- a rotary distributor comprising a plurality of sliding channels joined by a junction slide from which each of said plurality of sliding channels extends;
- a variable drive for rotating said rotary distributor about an essentially vertical axis of rotation with an adjustable velocity,
- wherein said junction slide is arranged and shaped such that said sliding channels are individually selectable for a flow of charge material based on at least one of the adjustable velocity and rotational direction of said rotary distributor, as actuated by said variable drive,
- wherein said junction slide is inclined at an angle in the range between 35° and 65° with respect to the axis of rotation of said rotary distributor.
1 more element
Dependencies are inferred from the claim text.