Interlock factors for a single burner in a Shell gasifier?
Thread Content
When a single burner shuts down due to low speed, changes in density, or variations in the oxygen-coal ratio, how can one determine what is causing it? Is it possible that there is coal blockage somewhere, or that the bottom cone of V1205 is blocked and preventing proper operation? Or could it be that the burner shuts down as a result of issues with the coal line temperature after prolonged operation? How should these situations be diagnosed?
The reasons for the shutdown of Shell’s single burner can be found in the ESD event records, with precision down to milliseconds. In the case of a single burner, if there are fluctuations in speed, density, or the oxygen-coal ratio, it may be due to foreign objects stuck at the coal valve, or foreign objects in the cone section; poor quality of coal powder (particle size, moisture), low nitrogen flow rate, or deviations in the speed meter or density meter could also be the cause.