Slag falling pipe cover plate for circulating fluidized bed boiler

The utility model provides a slag falling pipe cover plate for a circulating fluidized bed boiler. The slag falling pipe cover plate comprises a slag falling pipe, the sleeve is welded to the slag falling pipe; and the end cover is connected to the slag falling pipe in a sleeving manner and is welded to the sleeve. According to the slag falling pipe cover plate for the circulating fluidized bed boiler, the problem that fine slag possibly enters a steam-water system due to the fact that a welding seam between the sleeve and the slag falling pipe is damaged is solved, and the stability of steam-water circulation is further guaranteed; and under the condition that castable on the air distribution plate is blown off, the slag falling pipe cannot be abraded by large particles and sundries, the service life is prolonged, and the economic benefit of the boiler is improved. 本实用新型提供了一种用于循环硫化床锅炉的落渣管盖板，包括落渣管；套管，焊接于所述落渣管；端盖，套接于所述落渣管并焊接于所述套管。本实用新型提供的一种用于循环硫化床锅炉的落渣管盖板，避免套管与落渣管之间焊缝损坏，导致的细渣可能会进入汽水系统的问题，进一步地保证汽水循环的稳定；能够确保在布风板