What are the principles when the asphalt heating tank is heated?

The asphalt heating tank is forcedly circulated by a hot oil pump to heat the asphalt to the use temperature, which can heat various asphalts. So, what are the principles when the asphalt heating tank is heated?

Temperature is an important factor that affects its properties and performance, so it is necessary to strictly control the heating temperature and heating time of the asphalt heating tank. If the local temperature of the asphalt is too high and the heating time is too long, the performance of the asphalt will be affected to varying degrees, thereby affecting the quality of the project.

When the temperature is higher than 180℃, the asphaltenes in the asphalt are decomposed into free carbon. The precipitation of carbides and asphaltenes seriously affects the ductility and cohesiveness of the asphalt, and deteriorates the properties and performance of the asphalt.

If the water contains colored binder, then open the top to a temperature of 100 degrees in the hole and start the dehydration cycle. When the tank level thermometer is below the position, close the suction valve and stop the pump to avoid backflow during heating.

The exhaust valve of the asphalt heating tank is opened, and the asphalt smoothly enters the heater. Fill the water tank with water before ignition, then open the valve, the water level of the steam generator reaches the height, and close the valve.

In order to save fuel, observe the instructions of the thermometer and pump the asphalt at high temperature for dehydration in time. If the temperature is too high, please start the internal circulation cooling quickly. Asphalt heating tanks should be used in accordance with relevant principles.