Traveling Grate

The curvature design of the grates keeps the grates closed without the aid of auxiliary weights, when making the turn around the sprockets. With this design, no gaps appear between the grates, thereby directing all foreign materials into the ash pit and not into the drive shaft mechanism.

In stoker firing, part of the fuel is burned in suspension and part on the great. The fuel is projected across the furnace by a series of fuel feeders with a uniform spreading action, permitting suspension burning of the fine particles during travel. The larger pieces fall on the grate for combustion, forming a thin fast burning fuel bed from 1 to 2 inches thick.

This method of firing fuel provides for extreme load fluctuation as ignition is almost instantaneous on increase of firing rate and the thin fuel bed can be burned out rapidly when required.

The travelling grate has an extraordinary ability to burn any type of fuel with a wide range of burning characteristics with no limit on the ash content.

An over fire air system is provided for successful suspension burning. This air mixes with the furnace gases and creates the turbulence required to complete combustion.

To compensate for variation of the ash content in the fuel, the great speed can be adjusted