STUDY ON GANGUE BRIQUETTING FUELS SUITABLE FOR FIXED-BED BOILERS

Gangues are waste residues from coal mining that have a low calorific value and a high ash content. They are full of difficulties when direc tly fired in fixed-bed boilers (FBB). This paper presents the technolo gy of gangue briquetting combustion in FBB and the prescriptions, briq uetting conditions, basic properties, applied results, etc. of gangue briquetting fuels (GBF). Because GBF for use of FBB is widely availabl e and relatively cheap, it is regarded as one of the fuels to be suita ble for the national conditions of China.