Issues related to cupolas
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1. What is the melting temperature achievable inside a cupola furnace (using coke)? 2. How high should the base focus layer generally be laid? Thank you for the advice! This post was last edited by xucai on 2009-2-14 09:46.]
Given environmental concerns, should cupolas be phased out?
I’m not sure if the following will be helpful to you. The high energy consumption of cupolas is mainly due to a high ratio of coke to iron, as well as excessive coke usage. Many people think that adding more coke is a universal solution to improving furnace conditions. Once the furnace is not in good condition, more layer coke is added, rather than analyzing the causes of the problem from aspects such as the furnace structure, air supply volume, feed conditions, and operating procedures in order to take targeted and effective measures to resolve it. A considerable number of cupolas operate for extended periods at a coke-iron ratio of 1:5–1:6, while very few remain stable at a ratio of 1:7–1:10. In fact, under the current conditions in our country, it is entirely possible to maintain the tapping temperature of molten iron at above 1420°C on a 1:10-12 basis, with peaks reaching 1600-1700°C
The cupola is the main equipment used for melting cast iron in the foundry industry, and to date there is no furnace that can completely replace it. Environmental protection issues are addressed by adding additional facilities to the cupola to meet environmental standards.