Cooled grate block

Details Cooled grate block Cooled grate block

1995-11-17

1997-04-08

Kamen, Noah P.

Furnaces

Including means to feed solid fuel

Movable grate

F23H 708

Patent

active

056178018

ABSTRACT:
To cool a grate block which forms a part of a grate for plants for the thermal treatment of waste material, a closed cooling space in the grate block below an upper wall supporting the waste material is filled with cooling water. Water feed lines and water drainage lines pass through the cooling space, end in the cooling space, and respectively have a plurality of outlet and inlet openings, so that, in addition to an effective cooling which greatly reduces the temperatures, an optimum distribution of cold water and hot water also takes place in the cooling space. Since thermal expansions in the material are dispensed with, only a few screwed-together grate blocks can form a grate-block row. The assembly and exchange of grate blocks are simpler and an undesired amount dropping through the grate between the grate blocks is eliminated to a great extent. Moreover, the grate blocks can be produced from a less high-alloy material.

REFERENCES:
patent: 2171848 (1939-09-01), Hofft
patent: 5235921 (1993-08-01), Dunham

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