Cement Clinker Production with Low Emissions

Abstract

The cement clinker production process is optimized from prior art by taking advantage of the exothermic reactions inside the sintering kiln and isolating them from the combustion process. Replacing traditional ways to burn fuels at the kiln discharge, avoiding combustion gases, dust recirculation and excess air inside the kiln by using alternative sources of heat if needed. The result of doing this is a significant decreasing in NOx and CO2 emissions, less specific heat consumption, smaller main equipment for a similar capacity installation compare to prior art, among other benefits. Sending the recovered heat from the cooler thru an advantageously positioned hot air duct, it is possible to burn a good quantity of alternative fuels in the system, recovering the ashes out of the system or mixing them with the produced cement clinker.

Dependencies are inferred from the claim text.