Dusty clinker

If the clinker is extremely sandy or dusty, crushing prior to sieving may not be necessary. A random spoonful taken from a well-mixed sample will likely be adequate. 

Dusty clinker high porosity, breaded nodules, agglomerated fine particles, alite-rich, large alite crystals, and relatively scarce liquid phase (a) Decomposition of outer clinker shell and concentration of liquid phase in clinker core (Allegre and Terrier, 1960) (b) Recycling of precipitator dust, reducing zones, lack of AljOj in raw slurry (Hofmanner, 1973)... 

Dusty clinker (poor nodulization) and snowmen (a) Unfavorable temperature distribution (b) Too little melt (c) Too much coarse quartz, lime, slag (d) Heavy alkali circulation resulting in early crystal growth of belite and free lime and large silicate crystal size (Miller, 1980)... 

Dusty clinker, coarsely crystalline silicates, low-porosity nodules, poor grindability Slow temperature rise, higher clinkering temperature, longer time in burning zone and transition zone (Wolter, 1985)... 

Widely fluctuating C3S abundance in clinker and dusty kiln conditions Periodic dumping of silica-rich loads resulting from silica buildups in dry raw feed grinding mill and consequent surges of fine calcite (Dorn, 1980)... 

Increase in silica ratio, decrease in melt volume Results in decrease in power for grinding, providing that small crystals are produced and that the clinker is not dusty (Petersen, 1980)... 

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