Water-vapor sealed slag-discharge pipe of circulating fluidized bed boiler

• Main Authors: ZHAI SHUZHEN, ZHANG HUAIMIN, WANG MINGFANG
• Format: Patent
• Language: Chinese; English
• Published: 31.03.2010
• Subjects: AIR; BLASTING; COMBUSTION APPARATUS; COMBUSTION PROCESSES; HEATING; LIGHTING; MECHANICAL ENGINEERING; METHODSOR APPARATUS FOR COMBUSTION USING FLUID FUELOR SOLID FUEL SUSPENDED IN; WEAPONS

The utility model belongs to a slag-discharge pipe of a circulating fluidized bed boiler, particularly relates to a water-vapor sealed slag-discharge pipe of a circulating fluidized bed boiler, and solves the problems as follows: in the prior art, the slag-discharge pipe of the circulating fluidized bed boiler is easily coked and plugged and the slag is hard to remove. The water-vapor sealed slag-discharge pipe of the circulating fluidized bed boiler includes a slag-discharge pipe body, a slag-discharge plugboard door is arranged at the bottom of the slag-discharge pipe body, an air inlet pipeconnected with water vapor source and communicated with the slag-discharge pipe body is arranged on the slag-discharge pipe body, and a control valve is arranged on an air inlet pipe. The utility model has the benefits as follows: water vapor is used to seal the slag-discharge pipe, so that the air can not enter the inside of the slag-discharge pipe; the temperature is reduced, so that the interior coking of the slag-dis