1, Asphalt pump body running at high temperature, cold installation piping should be set hinge support to prevent the pipe after heating temperature. 2, behind the pump outlet melt filter to be replaced on a regular basis, do not long-term high pressure and pressure limit to run. 3, Regular replacement of bearings can save maintenance costs. When it is found that the amount of wear on the inner surface of the shaft or bearing is close to the thickness of the hardened layer, the shaft can be polished and reused, replacing only the bearing. This prolongs the life of the shaft by 8 to 10 years. 4, in case of power outage or heat medium cycle interrupt more than 3Omin, the asphalt pump should be disassembled after cleaning reassembly, in order to avoid melt curing. Cracking caused by poor lubrication of the bearing so that the pump damage. 5, the coupling must be heat in the pump body heat correction, in order to avoid running additional torque. 6, the pump outlet pressure measuring point to set the interlock to stop the alarm, otherwise, once the discharge pipe blocked, easy to cause damage to the pump. 7, Asphalt pump start, no pressure in the export formation, you can not blindly speed, in order to prevent premature failure of the shaft or bearing. 8, cleaning pipetting, do not pump delivery of cleaning fluid, the inner parts should be removed, pipetting after the end of installation, so as not to pump foreign matter. 9, bitumen pump heat medium jacket temperature can be slightly lower than before and after the jacket tube heat medium temperature. Melt viscosity and shear rate as a decreasing function, asphalt pump gear extrusion, bearing shear will melt the temperature rise after the pump 3 ~ 5 ℃, reducing the heat medium temperature to prevent melt degradation. The data shows that by reducing the temperature in the bearing zone, the bearing capacity can be greatly increased without the need to replace a large capacity pump and the output capacity of the asphalt pump can be increased by 50% simply by increasing the speed. 10, the speed to be slow, do not make the pressure before and after a sharp rise in order to avoid damage to the bearings or melt blocked lubrication channel.
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