The application of silica ramming mass in submerged arc furnace is mainly reflected in its role as a lining material. Siliceous ramming mass is usually mixed with silica sand and other refractory materials, rammed and constructed by manual or mechanical methods, and hardened at a certain temperature to form a refractory structure. This type of material is mainly used for the lining of submerged arc furnaces because they have the following characteristics:
Cheap raw materials and easy access: silica materials (such as silica sand) are cheap and widely available, which helps to reduce the overall cost of the lining.
High temperature resistance and low thermal conductivity: Siliceous materials have excellent high temperature resistance, and due to the low thermal expansion of silica sand (low thermal expansion coefficient), it helps to maintain the structural stability of the lining and reduce material damage caused by temperature changes.
Chemical stability: silica ramming mass is chemically stable at high temperatures and is not easy to react adversely with the molten material in the furnace, which can reduce chemical erosion of the lining.
Easy construction: silica ramming mass does not need to add water or other liquid binders, which simplifies the construction process and shortens the construction period. It also reduces possible problems during construction, such as poor exhaust.
When using silica ramming mass, key technical points include reasonable particle grading and selection of appropriate binders, which can significantly affect the performance and service life of the furnace lining. In addition, the correct construction method and baking system are also important factors to ensure that the siliceous ramming mass achieves the expected performance in the submerged arc furnace.
In general, silica ramming mass has a competitive advantage in the application of submerged arc furnace lining due to its economic and performance characteristics, especially in those occasions with high requirements for the life and performance of the furnace lining.
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