Improving the Heating System and Structure of Shaft Furnaces for Roasting Limestone
V. T. Ryazanov, V. V. Madison, A. S. Dorokhin, and S. S. Shul’gin
Improvements in the thermal system of counter flow shaft furnaces—including the heating systems, burners, gas distribution units, and control algorithms—are described, for new and reconstructed furnaces producing lime containing 92–96% (CaO + MgO)act. The burnout is no more than 1%, and the quantities of CO and NOx are significantly below the permitted values.
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