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AssigneesMaerz Ofenbau AG, thyssenkrupp AG
InventorsHannes PIRINGER, Patrick BUCHER, Fernand DIDELON
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A method can be used to burn and cool material in a parallel flow-counter flow regenerative shaft kiln having two shafts that are operated alternately as a burning shaft and a regenerative shaft. The material flows through a preheating zone, a burning zone, and a cooling zone to a material outlet. Fuel is supplied in or above the preheating zone, and thus fuel is heated in the preheating zone prior to entering the burning zone. Further, a parallel flow-counter flow regenerative shaft kiln for burning and cooling material may have two shafts that can be operated alternately as a burning shaft and a regenerative shaft. Each shaft has, in a flow direction, a preheating zone for preheating material, a burning zone for burning material, and a cooling zone for cooling material. A fuel inlet that admits fuel into each shaft is arranged above or inside the preheating zone.
-15. (canceled)
A method for burning and cooling material in a parallel flow-counter flow regenerative shaft kiln that includes two shafts that are operated alternately as a burning shaft and as a regenerative shaft, wherein the material flows through a preheating zone, a burning zone, and a cooling zone to a material outlet, wherein fuel is supplied inside or above the preheating zone such that the fuel is heated in the preheating zone prior to the fuel entering into the burning zone.
A parallel flow-counter flow regenerative shaft kiln for burning and cooling material, the parallel flow-counter flow regenerative shaft kiln including two shafts that are each configured to be operated alternately as a burning shaft and as a regenerative shaft, wherein each of the two shafts includes, in a direction of flow of the material, a preheating zone for preheating the material, a burning zone for burning the material, and a cooling zone for cooling the material, wherein a fuel inlet for admitting fuel into each shaft is arranged above or inside the preheating zone.
Dependencies are inferred from the claim text.