F - Mech Eng,Light,Heat,Weapons – 23 – H
Patent
F - Mech Eng,Light,Heat,Weapons
23
H
F23H 3/04 (2006.01) F23H 3/02 (2006.01) F23H 7/08 (2006.01) F23H 17/00 (2006.01)
Patent
CA 2161835
To cool a grate block (6) which forms a part of a grate for plants for the thermal treatment of waste material, a closed cooling space (27) in the grate block (6) below an upper wall (23) supporting the waste material is filled with cooling water, water feed lines (30, 31, 34) and water drainage lines (40, 42, 43) passing through the cooling space (27), ending in the cooling space (27), and having a plurality of outlet and inlet openings (35 and 41 respectively), so that, in addition to the effective cooling which greatly reduces the temperatures, an optimum distribution of cold water and hot water also takes place in the cooling space (27). Since thermal expansions in the material are dispensed with, only a few screwed- together grate blocks (6) can form a grate-block row (4 or 5). The assembly and exchange of grate blocks are simpler and the undesired amount dropping through the grate between the grate blocks (6) is eliminated to a great extent. Moreover, the grate blocks (6) can be produced from a less high-alloy material.
Hauser Rolf
Morant Daniel
Gowling Lafleur Henderson Llp
von Roll Umwelttechnik Ag
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