Method and system for the thermal treatment of dispersible raw material
AssigneesThyssenkrupp Industrial Solutions AG, thyssenkrupp AG
InventorsDaniel Klegraf, Sebastian Frie, Henning Brinkschulte
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Abstract
A method for the thermal treatment of dispersible raw material may involve introducing raw material into a riser tube that is perfused by hot gases and thermally treating the raw material with the hot gases. Furthermore, the method may involve feeding a fuel to the riser tube. The fuel may initially dwell in a fuel-conditioning region on a bearing face, where the fuel comes into contact with a part of the hot gas that is mixed with the raw material. Consequently, the fuel is dried and/or at least partially de-gassed and/or at least partially reacted and subsequently transferred into the riser tube.
Claims5
A method for thermal treatment of dispersible raw material, the method comprising:
- introducing raw material into a riser tube that is perfused by hot gases;
- thermally treating the raw material in the riser tube with the hot gases;
- feeding a fuel into a fuel-conditioning region and onto a bearing face disposed in a conditioning chamber that leads into the riser tube, wherein at least 50% of hot gases that come into contact with the fuel is formed by a part of the hot gases that are mixed with the raw material and deflected into the conditioning chamber, whereby as a result the fuel is at least one of
- dried,
- partially or completely de-gassed, or
- partially or completely reacted;
- and
- transferring the fuel into the riser tube.
Dependencies are inferred from the claim text.