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在工业电炉停炉时进行的解剖和研究证明,在所有的炉子中都存在着焦炭层,其形状因炉子不同而异。研究了炉子焦炭层与停炉前操作条件和炉况的关系,结果表明,焦炭层的部位和厚度是影响炉况的重要因素。此外,它们决定了电极端位置——插入深度,也决定了炉子操作的稳定性。随后,通过实验室和操作试验研究了焦炭层厚度和部位变化的原因,并得出了一些结果。为把它应用于炉子实际操作,就必须研制一种测试方法,然后在炉子操作中控制焦炭层的厚度和位置,这些研究工作是借助于计算机进行的。本文叙述研制工作的进程,也触及到已广泛应用的某些传统技术的效果,如原料的分级。同时,本报告指出了加强这些传统技术的效果方面的一些打算。
Anatomy and research conducted during the shutdown of industrial electric furnaces demonstrated that coke layers exist in all furnaces and vary in shape from furnace to furnace. The relationship between the furnace coke layer and the operating conditions and furnace conditions prior to shutdown was studied. The results show that the location and thickness of the coke layer are important factors affecting the furnace condition. In addition, they determine the location of the electrode tip - insertion depth, but also determines the stability of the operation of the stove. Subsequently, the causes of coke layer thickness and location changes were investigated by laboratory and operational tests and some results were obtained. In order to apply it to the actual operation of the furnace, it is necessary to develop a test method and then to control the thickness and position of the coke layer in the operation of the furnace, which is done by means of a computer. This article describes the progress of research and development as well as the effects of some of the more widely used traditional techniques, such as the classification of raw materials. In the meantime, the report points out some plans for strengthening the effectiveness of these traditional technologies.