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Measures and Effects of Ultra-low Emission Technical Transformation of a 4 500t/d Clinker Production Line
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1. Hefei Fengda Cement Technology Co., Ltd. ; 2. Chunjiang Cement Co., Ltd.
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Abstract In this paper, the transformational scheme of MFC decomposition furnace & 5-stage single series cyclone preheater system is introduced. The scheme adopts self-reducing denitrification technology and adjusts the access position of 3rd-air pipes and the feeding position of C4 cyclone tube. In addition, this scheme also adopts the heavy hammer compression kiln tail seal, and the energy-saving strong swirly flow into the furnace combustion device without external air. After the transformation, due to the lower resistance of system, the average power consumption is reduced by 1.62kW·h/t.cl, the standard-coal consumption reduced by 3.15kg/t.cl, and the NOx emission value controlled less than 100mg/Nm3, which meets the emission requirement.
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Received: 09 June 2020
Published: 04 February 2021
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