Zitat: Intelligent Technologies for Energy Recovery

Grate Systems

Reciprocating Grates

This construction has a leaned surface that is built of individual rows of grate bars. Each second row is fixed, whereas the other grate rows do a pushing motion. Due to this movement the cumbustible is stoked and big pieces get broken. The oxygen support is garantized by air channels that are mounted below the grate.

Kablitz-Reciprocating-Grates garantuee a maximum burning of miscellaneous combustibles from big, lumpy bark or wood chips until fine garbage like olive stones or rice husks. The perfectly adjustable stoking is reached by the special movement of the grate bars and the stairs-like assembly of the grate. The moving parts of the grate get driven by hydraulic.

Overthrust Grates

The surface of this construction also is leaned to guarantee a continouus transport and burning of the combustible. Each second great bar in one row is fixed while the others do a pushing movement and overlap each other.

Kablitz-Overthrust-Grates are used in cases of moist combustible with max. 65% humidity. Because of the control of the combustion and the mixing of the combustible in the individual sections, a total burning even of the most difficult combustible is guaranteed. This grates are available with air and water cooling.

Travelling Grates

Traveling grates are broad, endless bands on which the grate bars are fixed. The grate is moving with slow velocity and builds the floor of the firing room. The combustible slides from the bunker on top of the grate where it is dried, ignited and burned by the flame of the combustion chamber. After the combustion of the solid coal, the ash falls through a pendulum fall-back in the ash hopper at the end of the grate. Through the air closet between upper- and lower band of the grate, the demand of air can be adjusted to the firing.

Availability, low costs of maintenance, broad range of combustibles and low emissions of NO^x are the biggest advantages of this grate-system. In Addition to that there is the possibility to combine the traveling grate with a throw-feeding system.

Tilting Grates

The tilting grates, which are placed at the end of the reciprocating or overthrust grates improve the combustion and the energetic coefficient, especially in case of heterogeneous combustibles with unequal sizes. The combustible is held longer in the firing-zone and is finally led into the ash hopper with a collapsible mechanism.