DALIAN SDA HEAVY INDUSTRIES CO., LTD. COMPARISON OF TWO CHINESE WHR TECHNOLOGIES FOR CEMENT PRODUCTION

摘要

Presently in China, there are two prevailing low temperature waste heat recovery (WHR) power generation technologies and equipments therefor: one is the WHR technology adopting sub-medium steam parameters of 1.57 approx 3.43 MPa developed by Dalian East Energy Project Co., Ltd., which is hereinafter referred to as "2nd Generation Technology" (the water/ steam balance thereof is shown in attached Diagram-1); and the other is the WHR technology adopting low steam parameters of 0.69 approx 1.57 MPa developed based on the technology and equipment of KHI (Japan) and the practical execution of the WHR power generation project for the 1500tpd cement kiln of Jinshan Cement Plant of Shanghai Wan'an Group, which is hereinafter referred to as "1 st Generation Technology" (the water/steam balance thereof is shown in attached Diagram-2) which includes technical schemes adopting single steam pressure, dual steam pressures or flash evaporation technology.