IN IN337KO2014A
[0001] The invention relates to a method of producing wear resistant ceramic liner at low sintering temperature consisting of wt. % of bauxite >88%, an aluminosilicate and oxide additive mixture not exceeding 12%, with organic binding adhesive of 5-10% concentration. The method comprising the steps of a) formulating a composition of Bauxite of specific alumina content with other additives, b) dry mixing in a high speed mixer of the said ingredients; c) pressing the moist powder in the form of tiles of different sizes and shaping by a hydraulic press; d) natural drying of the formed tiles; e) sintering the tiles in a continuous kiln at 1240-1260 °C temperature to obtain an abrasion resistant tile of bulk density 3.0-3.15 g/cc and water absorption of < 0.1%, adjusted abrasion volume loss (AVL) of 13- 16 mm3 and average air jet erosion value (AEV) of 0.44-0.46 mm3/g with homogenous dense microstructure. The material has potential as wear resistant low cost ceramic liner replacing the melt casted Basalt for ash handling application in thermal power plants.
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