A new method for ash melthod thermo-analysis based on mineral quantity  

作　　者：ZHAO YongChun ZHANG JunYing SHAO XinYu ZHENG ChuGuang 

机构地区：[1]State Key Laboratory of Coal Combustion, Huazhong University of Science & Technology, Wuhan 430074, China [2]School of Mechanical Science & Engineering, Huazhong University of Science & Technology, Wuhan 430074, China

出　　处：《Chinese Science Bulletin》2011年第10期1043-1047,共5页

基　　金：supported by the National Natural Science Foundation of China(50906031,40972102,50936001,50721005);National Basic Research Program of China(2010CB227003);Innovation Foundation Program of Huazhong University of Science and Technology(2009012)

摘　　要：Ash deposition has a major impact on safe and economic operation of coal-fired boiler.A new method for ash melting thermo-analysis based on X-ray diffraction mineral quantitative analysis was developed;the classical thermal analysis theory was used to describe the dynamic behavior of ash melting.The low-temperature ash melting process curve was acquired.Compared with the conventional method of ash fusibility,the new method of ash melting characteristic curve reflects the ash melting dynamic better.The ash melting characteristic curve reveals the multi-stage reaction process of minerals melting,explains the gradual increase of mineral melting process in theory.Ash deposition has a major impact on safe and economic operation of coal-fired boiler. A new method for ash melting thermo-analysis based on X-ray diffraction mineral quantitative analysis was developed; the classical thermal analysis theory was used to describe the dynamic behavior of ash melting. The low-temperature ash melting process curve was acquired. Compared with the conventional method of ash fusibility, the new method of ash melting characteristic curve reflects the ash melting dy- namic better. The ash melting characteristic curve reveals the multi-stage reaction process of minerals melting, explains the gradual increase of mineral melting process in theory.

关 键 词：热分析 产量 特性曲线 熔化过程 灰熔点 经济运行 燃煤锅炉 定量分析 

分 类 号：P575[天文地球—矿物学]