An application of a bag-type dust removing method in processing crude synthetic gas produced by fluidized-bed equipment of coal gasification and bag-type dust removing equipment thereof

摘要

An application of a bag-type dust removing method in processing crude synthetic gas produced by fluidized-bed equipment of coal gasification, which method controls the temperature in the bag (300) at 180~250 degree centigrade and the pressure difference between the position close to the gas inlet (130) and the position close to the gas outlet (110) in the bag (300) at 1000~5000 pa. The method effectively solves the technical problem of high vapor content in the crude synthetic gas discharged from fluidized-bed equipment of coal gasification being easy to condense, and overcome the defect of the high dust content leading the bag (300) and its material easy to be pluged. A bag-type dust removing equipment for carrying out said application and an equipment for pneumatic transmitting dense phase gas.