Analysis and Comparison of Different binders for Coal fines

Abstract

In coal mining process and handling, enormous tons of coal fines are formed. Typically, after handling and cleaning is completed, about 15-20% of the coal mined consists of fines ranging in size from powder to small granules. For the most part, these fines are not directly usable, thereby leaving great quantities of material that is wasted and represents a hazardous and expensive disposal problem. Typically, coal fines are disposed of at or near the mine site in unsightly piles, trenches or ponds. The fines material from mining operations are frequently recovered in the form of a wet filter containing about 20-30% moisture, depending upon its size, distribution and ash content. Currently, there are over two billion tons of discarded coal fines throughout the Indian mines. While a portion of the coal fines can be combined with coarser fractions of mine production for sale, the inclusion of all fines often reduces the quality of the product below market requirements. Accordingly, coal fines handling, storage and disposal operations represent a significant and unproductive expense for the industry. Using different percentage of various binders to briquettes is produced from coal fines. And their physical and chemical properties are analyzed and compared by different test for various concentrations of binders.
Key words: Coal, binders, hazardous, moisture, Molasses, Lignin, Pitch, Dairy Waste