Charging device for a rotary hearth furnace
AssigneePaul Wurth S.A.
InventorsGilbert Bernard, Emile Lonardi, Romain Frieden, Patrick Hutmacher
Life of this patent
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Abstract
The invention relates to a charging device for creating superimposed layers of fine-grained bulk material on a rotating hearth (2). For each layer of bulk material to be charged, said charging device comprises a discharge hopper (22) having an outflow slot (36) and a discharge roller (42) positioned ahead of each outflow slot (26). Said outflow slot (36) and discharge roller (42) extend essentially at a right angle to the direction of rotation of the rotating hearth and the discharge roller (42) has a drive (44), the rotational frequency of which can be controlled.
Claims16
A rotary hearth furnace, comprising:
- a rotary hearth;
- and
- a charging device for production of layers of fine-grained loose material one above the other on said rotary hearth, said charging device including for each loose material layer:
- a discharge bunker with a discharge slot,
- a discharge roller arranged under said discharge slot,
- a variable speed drive associated with said discharge roller, and
- a guide section arranged under said discharge roller;
- wherein said discharge slot and said discharge roller extend essentially transversely to a direction of rotation of said rotary hearth, and said guide section is arranged in such a way that the loose material falling from said discharge roller falls on to said guide section and is guided by the guide section on to said rotary hearth.
Dependencies are inferred from the claim text.