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INDIRECT HEATING BITUMEN TANKS
In In-direct heating type tanks-cylindrical in shape& horizontal in position, the bitumen is heated by circulating hot thermic oil through its heating coil. A thermic oil heater with oil fired burner heats the thermic oil & this hot oil is circulated through the heating coil inside the bitumen tank by an oil pump on heater. A single heater can easily heat nos. of tanks as required in continuous process. The temperature of oil is very well controlled by an auto thermostat on heater and so, bitumen never gets over-heated. Thus, the quality of bitumen (viscosity) never gets deteriorated/spoiled in this kind of indirect heating system. Fuel consumed to heat every ton of bitumen is also less compared that for a direct heating system.
Tanks capacity available is 30, 40 & 50 tons.