High burner pressure difference
Thread Content
1. Burner blockage 2. Excessive oxygen flow 3. Increased slurry flow
I think this problem can also occur if the viscosity of the coal slurry is too high
What the original poster said makes sense. But I think a high oxygen flow rate does not necessarily result in a high burner pressure difference; instead, it tends to reduce the burner pressure difference. Because a large flow of oxygen drives the water-coal slurry at the burner outlet to be rapidly injected into the furnace, thereby reducing the burner pressure difference. It seems that this has been analyzed in some literature. I’ll go look for it for everyone. I think it’s possible that high oxygen pressure could cause a high pressure difference in the burner.
A too small gap at the burner head can also cause this issue!
Reasons for high burner pressure difference: 1. High load; 2. High slurry concentration; 3. Blockages of large particles in the slurry pipeline； It has nothing to do with the oxygen flow rate.