HDRA-RF Series

HDRA-RF High Efficiency, High Turndown Low NOx Burner

Multi-Fuel Burner for Asphalt Drum Dryers

The Webster Combustion model HDRA-RF is a multi-fuel register-style burner for asphalt rotary dryers that allows users to shape the flame by automatically controlling the register vanes to optimally fit their rotary dryer and combustion zone. This allows the Webster burner to operate with a shorter flame than products offered by other asphalt burner manufacturers. This flame-shaping capability means the flame will not impinge on the material, and CO can be maintained at much lower levels than currently available. In addition, NOx levels for the HDRA-RF are significantly lower than typically seen in asphalt applications. The Webster Combustion HDRA-RF operates with lower motor HP, an optionally supplied VFD and an inlet air damper, which allows for higher turndown ranges to reduce energy usage and provide greater total energy savings.

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The Webster Combustion HDRA-RF burner readily adapts to mount on both Parallel Flow and Counter Flow Dryers, and the burner housing and fan can be installed in multiple configurations depending on space constraints and elevator location. The Webster Combustion HDRA-RF Series Asphalt Burner is capable of burning a wide range of fuels, either separately or simultaneously, including Natural, LP, and low BTU gas, all commercially available grades of fuel oil, and qualified waste oils. A dual manifold combustion head is available for applications firing multiple gas fuels.

ABMS (Asphalt Burner Management System)

The ABMS (Asphalt Burner Management System) will provide precise material temperature control in either manual or automatic mode. This allows for optimum performance and emissions control. The system maintains the negative pressure in the drum by controlling the outlet damper of the exhaust fan or through the exhaust fan VFD. The ABMS provides an interface to the system through the HMI and panel push-button switches and acts as the primary point of control. The panel HMI displays setup, diagnostic, and troubleshooting tools to allow the operator full control of the burner, with ethernet communications so you can stay connected from anywhere. Multiple status screens are available in the system for trouble-shooting and the system has continuous data logging which is stored on a hard drive and can be exported through a USB connection.