The main function of refractory lining in reheating furnace

Source: | Author:ChangXing Refractory | Published time: 1427 days ago | 1066 Views | Share:

The main function of the heating furnace is to heat the billet to 1000-1025°C until it has sufficient plasticity so that it can be rolled to the required cross-section, size or shape by the hot rolling mill. The chemical material composition and grade are different, and the required rolling temperature also varies. According to the metallurgical properties and productivity of the raw materials, the heating rate of the heating furnace must also meet specific requirements and goals. During the processing of the heating furnace, the materials continuously run through the heating furnace to heat the raw materials to a certain temperature.

The heating furnace is mainly composed of a regenerator that is insulated by refractory materials, a furnace that supports and transports heating elements, a furnace body, and a heat recovery system. The heating furnace uses oil, natural gas, electricity and coal as the main fuels as heat sources. The furnace temperature and pressure are controlled automatically, or manually.

Refractories play an important role in controlling energy consumption and improving the efficiency of heating furnaces. The function of the refractory lining of the heating furnace is to prevent the heat loss of the furnace body and to ensure that the temperature of the outer surface of the heating furnace is low, so as to meet the safe working conditions around the heating furnace body, thereby helping to achieve the unit fuel consumption target. The design and structure of refractory materials also fully consider the problem of minimizing the heat loss of side walls, roof and bottom of the furnace.

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