Common failure points, operational challenges, and economic considerations of Luchie furnaces
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Seeking help with technical issues related to Luchi furnaces. 1. Where are the common failure points during the operation of Luzzi furnaces? 2. What are the difficulties in operating a Luchi furnace? 3. What are the economic benefits and coal type adaptability of the Luchi furnace? 4. What issues should be considered when building a new Lurgi furnace? Thank you, seniors! This post was last edited by Tianya Langji on 2009-2-9 11:31.]
1. Common failure points during the operation of Luchi furnaces: Mechanically, these issues mainly include the frequent need to replace various hydraulic valves, leakage in the packing of the upper and lower valves of the coal lock and ash lock, as well as leakage in the mechanical seals of the pumps used for washing and cooling the gas； In terms of process issues, the main problems are high outlet and ash lock temperatures, as well as the inability to remove ash ； Other common issues are various gauge problems. 2. The difficulty in operating the Lurgi furnace lies in stabilizing the coal type and adjusting the appropriate gas-to-oxygen ratio. 3. The coal type adaptability of the Lurgi furnace is limited to low-cohesiveness coals, and it is mainly suitable for bituminous coal and lignite ； The economic efficiency is not high compared to new gasification technologies, mainly due to the low C conversion rate and low content of useful gases. Waste residues and wastewater carry away a large amount of thermal energy, and wastewater is difficult to treat and utilize. The comprehensive index is better than that of atmospheric-pressure furnaces. 4. If a new Lurgi furnace is to be built, attention should be paid to the selection of coal type and wastewater treatment. This post was last edited by shanxg on 2009-2-9 13:31]