Issues regarding the slag from the gasification furnace
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Why are there many large pieces of slag in the gasifier, and why is it green in color? What is the relationship between slag volume and hopper temperature? What should be done when there are many large pieces of slag and it turns green?
Check whether the operating furnace temperature is too low, or determine the ash melting point to see if it is too high, or if there are significant temperature fluctuations that cause slag to melt. The temperature of the lock hopper is primarily used to determine whether slag is being removed from it smoothly over a half-hour period. Pay attention to the temperature curve, as it generally changes in a regular pattern; if there are sudden changes in the curve, then pay attention to the amount of slag and check whether it is being discharged. If it is indeed one of the problems mentioned above, then take action. The answer may not be perfect; everyone please add to it
Please don’t bully me for not having gone to school; the appearance of large areas that are discolored blue is clearly due to an excessively high furnace temperature, which causes slag formation and the erosion of refractory bricks, as well as changes in the color of chromium ions
Why are there many large pieces of slag in the gasifier, and why is it green in color? What is the relationship between slag volume and hopper temperature? What should be done when there are many large pieces of slag and it turns green? .......If the slag appears in large, bluish patches, it indicates that the local temperature is too high. The issue is resolved by increasing the steam-to-oxygen ratio.
I’ve learned something new – has this happened with your stoves as well? The person downstairs also said it was a case of high local temperatures that required cooling treatment; I guess I misunderstood
Is high local temperature caused by the burner combustion center being off? Or is the slag deposition uneven in certain areas? Are it still some issues with the water wall pipelines? Or something else? Seek a solution
It indicates that the slag on the surface of the furnace bricks has fallen off; it is recommended to increase the furnace temperature appropriately, analyze the coal, and also check whether there is a problem with the slag breaking machine!
A large vaporization zone temperature appears; as the vaporization zone temperature rises, the amount of steam used increases. As for you saying the slag is blue in color, I really have never seen that.
The formation of such large pieces of slag here is usually due to insufficient control of the furnace temperature, or changes in coal quality that lead to an increase in the ash melting point without timely adjustment. The slag appears bluish-green because the reaction is not efficient at this time, resulting in a high level of residual carbon