Reverberatory furnace bottom

Reverberatory furnace bottom

The bottom of the reverberatory furnace is an important part of the reverberatory furnace. Due to the long-term high temperature and the huge pressure of the melt, it is constantly subject to melt erosion and chemical erosion. Therefore, it is necessary to choose appropriate refractory materials for masonry or use ramming and sintering the bottom of the furnace. To extend the life of the furnace. The requirements for the furnace bottom are solid, corrosion-resistant and able to expand freely when heated.

Reverberatory furnace wall

The furnace wall is directly laid on the furnace base. The furnace wall is subjected to the physical and chemical effects of high temperature melt and high temperature furnace gas, so the inner layer of the smelting reverberatory furnace wall is mostly built with magnesia bricks and magnesia bricks, the outer layer is built with clay bricks, and some important parts are built with chrome-magnesia bricks. build. The inner and outer walls of the lower melting point metal melting furnace, such as aluminum melting reverberatory furnace, can be built with clay bricks.

Reverberatory furnace structure

The reverberatory furnace is composed of furnace base, furnace bottom, furnace wall, furnace roof, charging port, product discharge outlet, flue and other parts. The auxiliary equipment includes a feeding device, a blowing device, a smoke exhaust device and a waste heat utilization device. (1) Furnace base. The furnace base is the foundation of the entire furnace and bears the huge load of the furnace, so a solid foundation is required. The furnace base can be made of concrete, slag or stone, and the periphery is concrete or reinforced concrete side walls. There is a hole at the bottom of the furnace base for placing the bottom tie rods for strengthening the furnace.

Blackbody requirements for different uses of blackbody furnace

Different uses have different requirements for blackbody. In the field of temperature measurement, the correspondence between blackbody radiation and temperature is mainly used, so the higher the emissivity of the blackbody, the better. It is required that the radiant energy of the black body conforms to Planck’s law according to the spectral distribution (that is, the black body spectral radiant energy, also called monochromatic energy), so that we are verifying or calibrating the radiation thermometer, using the temperature of the black body (or standard radiation thermometer) ) To correct the deviation of the radiation thermometer. Therefore, when choosing a blackbody, a cavity blackbody with a higher emissivity is usually selected. At the same time, attention should be paid to the blackbody cavity diameter, temperature uniformity and radiation temperature uncertainty.

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