All-in-one heater heats the asphalt tank while supplying hot oil to the plant
The All-In-One Heater Kit from Seattle, Washington-based Process Heating Company is a complete system that can provide direct heat to the asphalt tank, while also supplying hot oil for the plant. The primary feature of the system is the drywell-style electric heating elements that provide and maintain heat to keep liquid asphalt cement at the desired temperature.
At the same time, the system circulates oil through scavenger coils and thermostat-controlled electric booster heating elements to provide hot oil to heat jacketed lines, pumps and valves, drags, silo cones, and other plant components. The scavenger coils allow for quick heat, while the booster coils sustain it for pinpointed locations. Booster elements also can elevate the oil temperatures above the controlled asphalt storage temperature, if higher-temperature hot oil is required.
The system provides 100%-efficient heat over its lifetime (often 30 years or more), as it reduces emissions and the associated need for expensive stack permits at the plant. Using PHCo’s unique Lo-Density® patented Coil-Lock-design heating elements, which reside within a drywell, the units dissipate controlled heat as low as three watts per square inch on the heater’s sheath, eliminating coking or damage of the asphalt cement and transfer oil. Because the drywell-style elements are accessible from outside of the system, they also may be serviced without draining the tank.
To read the entire article on www.highways.today, Click Here.