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多年来全水冷炉盖在使用中发现具有很多耐火砖炉盖所不具备的优点,但是由于炉盖处于熔池上方,对传热、升温、节能有较大的影响。所以人们总希望在全水冷炉盖工作面上加一层永久性的耐火材料。我们在0.5吨电弧炉上采用铁管镁砂内衬,经过三年的试验取得了明显的效果:第一个炉盖的内衬使用寿命达1017炉次,而水冷炉盖的水箱部份仍然完好无损。其寿命为高铝砖炉盖的5～7倍。使用性能较接近于耐火砖炉盖。最近,该技术已在本厂5吨电弧炉上推广使用,同样取得了较好的效果。
Over the years the whole water-cooled lid found in the use of many refractory lid does not have the advantages, but because the lid is above the pool, heat transfer, heating, energy saving have a greater impact. Therefore, people always hope to add a layer of permanent refractory material in the whole water-cooled furnace cover working surface. We use iron magnesia lining on the 0.5t electric arc furnace. After three years of experiment, we achieved notable results: the lining life of the first furnace cover is 1017 times, while the water tank cover is still partially Undamaged Its life is high alumina brick lid 5 to 7 times. Use performance closer to the firebrick cover. Recently, the technology has been in the factory to promote the use of 5 tons of EAF, also achieved good results.