Phenomena that can be observed in Texaco cinder

:Lol, could the expert please be more detailed? :handshake

Yes, could you explain it in detail? That is, how was it formed?

There are many aspects of gasification that can only be understood intuitively and not expressed in words; what the original poster mentioned is mostly based on experience, and it’s difficult to quantify those aspects with data. This is also one of the features of gasification.

This post was last edited by GSP on 2011-4-8 22:11. How can one determine the temperature and operating condition of the gasification furnace based on the condition of the ash? Answer: Normal ash should have a uniform particle size (around Ф5mm), a smooth surface, and an appropriate amount of ash; it is advisable that the ash content make up more than 50% of the total ash volume. (1) There is a significant amount of fine slag; the volume of slag is considerable, but no stringing phenomenon occurs, which indicates that the furnace temperature is too high. However, since the slag has good fluidity, it is possible to lower the temperature slightly in order to reduce the O/C ratio ； (2) There is an excess of fine slag, which has a yellow-green color; analysis shows a high Cr2O3 content. At this time, the furnace temperature is high, so it is necessary to gradually reduce the O/C ratio and lower the operating temperature step by step ； (3) If there is a drawing effect and the amount of slag is moderate, it indicates that the fluidity of the slag has decreased and the slag outlet is blocked, resulting in an irregular shape; in such cases, the temperature should be increased appropriately to raise the O/C ratio ； (4) If there are fibers similar to rock wool, with no formed slag lumps or particles and a relatively large amount of such fibers, it indicates that the slag outlet or downcomer is severely blocked; in this case, it is necessary to reduce the load or shut down the system ； (5) The presence of coarse slag particles, along with a small number of small pieces of irregular shape and an appropriate amount of slag, indicates that the furnace temperature is too low and the fluidity has decreased; it is necessary to increase the temperature accordingly ； (6) The coarse particles have increased significantly; larger slag lumps and adhering slag are present, and their shape is very irregular. This indicates that the furnace temperature is low, and the furnace temperature should be raised to improve slag handling ； (7) The slag contains both lumps and filaments; its amount is moderate. Analysis shows a high carbon content in the slag, indicating poor atomization effect of the burner or uneven spraying, which leads to incomplete gasification and results in large temperature variations in the slag holding plate ； (8) An excessive amount of slag indicates a high ash content in the coal; it is necessary to raise the furnace temperature, reduce the load, or improve operational practices ； If the amount is low, scum or slag may form; in such cases, the slag breaker can be operated in reverse mode or the load can be reduced ； In practical operation, decisions regarding treatment should be made based on a comprehensive assessment of the slag, DCS operation instructions, as well as the CS concentration and coal quality analysis. This post was last edited by Tianya Langji on 2009-1-3 19:46.]

The one on the 6th floor must be Hualu Hengsheng, right? Hehe!

The offerings on the 6th floor are quite good; I’m currently learning *central control systems, and it’s very helpful. This post was last edited by xuqinger on 2009-1-5 13:49.]

Based on my current experience, only by experiencing failures can I understand what the original poster meant by A. Moreover, since my plant does not use coal slurry, I may need to draw my own conclusions and learn from those who work with gasifiers*

What was said on the sixth floor is great, but to really understand it, one needs to observe more in practice. Thank you