U nit incorporates separate power and mechanical drive units. Separate units permit flexibility in positioning for ease of installation and maintenance. The mechanical drive unit is directly connected to the grate drive, eliminating the need for variable speed drives with gears and sprockets. The drive is a heavy duty design, capable of running in reverse to facilitate maintenance or relieve a grate jam. Power consumption is low.
Operation is smooth and quiet.
Hydraulic Drive Unit DB Riley also provides a stationary W ater C ooled G rate which is suitable for burning cellulose fuels including wood. Stationary grate segments are fabricated from heat resistant castings supported by floor tubes in the furnace. Intimate contact with the floor tubes provide sufficient cooling to prevent overheating. During operation, accumulated ash is removed periodically by steam jets from nozzles located within the grate segments. The motive energy provided by these jets propels the ash down the sloping grate surface and into the ash pit.