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到目前為止,國內各冶金工廠的冶金爐上一般的都採用水冷却系统。平爐的冷却也已成為生產操作上不可缺少的一部分,並因此大大地增加了平爐的堅實性,提高了爐子的生產力,改善了操作人員的勞動條件。但是水冷却系统存在着很多缺點,隨着煉鋼生產的發展,以及採用新技術的結果,如鉻鎂磚爐頂的使用,越來越顯得它和進一步提高平爐耐用性的要求不相符合。蘇聯1955年5月召開的全蘇煉鋼工作者會議指出,將
So far, metallurgical furnaces at all metallurgical plants in China have generally adopted water cooling systems. The cooling of open hearths has also become an integral part of the production operation and therefore greatly increases the solidity of the hearth, increasing furnace productivity and improving the working conditions of the operators. However, there are a number of shortcomings with water cooling systems. With the development of steelmaking and the adoption of new technologies, such as the use of chrome-magnesium brick roofs, it appears more and more that it is not in conformity with the requirement of further improving the durability of open hearths. The All-Soviet Steel Workers Conference convened by the Soviet Union in May 1955 pointed out