| Through on - site inspections, analysis and demonstration, local technical renovations were successively carried out on the C1 downcomer, outlet pipeline, spreading plate, air - locking valve, mid - kiln fan, air compressor and pipeline network, etc. The total investment was 2 million yuan. As a result, the temperature at the C1 outlet decreased by 8 °C, the standard coal consumption of clinker decreased by 0.6 kg/t, the comprehensive power consumption of clinker decreased by 2.12 kWh/t. The annual revenue reached 1.07 million yuan, and the investment payback period was 1.87 years. The effect is remarkable. |