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The material at the secondary air outlet is seriously worn, and the cause of this wear is as follows:
Dec 10, 2018

1. Material falling along the furnace wall and local eddy currents generated by the secondary air. 2. Airflow angle problem; 3. Wear caused by material flowing down the water wall; 4. Impact of material on lining refractory castable, and scouring caused by high velocity airflow carrying solid material.

In response to this wear, technicians in Henan's selection of new materials proposed improvements from the following aspects: 1. flue gas flow rate; 2. fly ash concentration; 3. hardness, temperature, shape and size of fly ash particles.

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