| 摘要 |
FIELD: metallurgy. ^ SUBSTANCE: crushed oily mill scale is mixed with dry caustic soda in an amount of 2-3 kg per 1% of oil per 1 ton of scale, then additionally with dry soda ash, 7-8 kg per 1% of oil per 1 ton of scale and claydite powder, 8-12 kg, respectively. Then it is poured with an aqueous solution of liquid glass with a density of 1350-1400 kg/m3 in the volume of 8-10 l of 1% oil per 1 ton of scale from the previously dissolved therein sodium fluorosilicate salt in an amount of 50-60 g per 1 litre of liquid glass solution. ^ EFFECT: invention helps to reduce energy consumption and improve the drying process and reduce drying time, improves granulation of oily scale without burning of oil and emission of harmful acid gases. ^ 2 tbl |
