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(11) | EP 1 288 569 A3 |
| (12) | EUROPEAN PATENT APPLICATION |
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| (54) | Ash Melting Device |
| (57) An ash melting device employing the means of using a crucible (4) with a three-layer
(24,25,26) structure, using an auxiliary burner (27) for prevention of the lowering
of temperature in the vicintiy of the discharge outlet (13) employing furnace walls
with a four-layer (20-23) structure to improve the heat insulating property and thereby
improve the durability, providing lids (2) at both the left and right sides to enable
the crucible to be taken out readily, etc. This ash melting device is intended to
significantly improve durability even after a long period of use at a high temperature
of 1600 to 1700°C or more, to resolve the problem of prevention of use of the melting
furnace due to clogging of the vicinity of the discharge outlet by the cooling and
solidification of the ash melt, to reduce fuel cost by the improvements in thermal
efficiency through improvement of the heat insulating property of the furnace walls,
and to enable the crucible to be exchanged readily in a short time. |