| 摘要 |
A method for primarily pre-heating ceramic material primarily in metallurgical processes, the material, in the form of brick or the like, forming part of a lining (3) or the like and being intended to be brought into contact with molten metal, such as molten steel, or a like melt, either directly or indirectly. Heating is effected primarily to reduce the magnitude of the temperature changes that occur in the material as a result of the alternating presence and absence of molten metal, or of a like melt that has an effect on the material. The method is particularly characterized in that heating is effected with the aid of so-called microwaves, and in that the cavity required herefor is formed by an existing metallic casing (2), preferably a steel casing, together with requisite auxiliary casing devices (4), such as lid devices (4) around the material. At least one microwave generator (7) is connected to the cavity in a manner essentially known per se. The invention also relates to an arrangement for carrying out the method. |
