(1) The working conditions of the industrial furnace should firstly investigate the working conditions of each part of the furnace, and analyze the primary and non-essential factors that damage the furnace materials. Focus on the furnace temperature unevenness, furnace temperature changes, slag properties, furnace atmosphere, impact wear, heat transfer and insulation, and other special requirements to ensure furnace life and product quality. If the refractory material is selected according to the furnace temperature, the following can usually be referred to.
1000℃ medium temperature resistance furnace Lightweight refractory clay brick, refractory fiber, floating bead brick
1300℃ Fuel heating furnace Refractory clay bricks, high alumina bricks, silica bricks, silicon carbide bricks, refractory castables, refractory plastics
1100℃ heat treatment furnace Refractory clay brick, refractory fiber
1300℃ high-temperature salt bath furnace Refractory clay bricks, high alumina bricks, zircon bricks, refractory castables
1400℃ high-temperature resistance furnace Lightweight refractory clay bricks, light high alumina bricks, light alumina bricks, light refractory clay bricks
1650℃ Molybdenum wire furnace Alumina brick, corundum brick, silicon carbide brick, alumina hollow ball finished product
1650℃ Cupola Refractory clay bricks, silicon carbide bricks, dolomite bricks, carbon bricks, graphite bricks
1700℃ electric arc furnace high alumina bricks, silica bricks, magnesia bricks, magnesia alumina bricks, magnesia chrome bricks, dolomite bricks, carbon bricks, refractory castables
1700℃ induction furnace Silica sand, magnesia sand, high alumina sand, zircon sand
Energy Saving Intelligent Tower Melting Furnace
This is a new type of high-efficiency furnace launched by Wanfeng technology, which is used in the aluminum alloy die casting industry.
It is mainly used for concentrated melting of molten aluminum in the fields of high pressure, low pressure, and gravity casting.
It has the advantages of simple operation, intelligent control, energy-saving, high efficiency, stability, and durability.
(2) The high-temperature application function of refractory materials should master the functions of various refractory materials, especially the high-temperature application function. When selecting, it should give full play to its strengths, and overcome its defects in terms of furnace structure, masonry, and protection.
(3) The cooperation of the service life of each part of the masonry will consume a lot of man-hours, materials, and fuel due to the middle or overhaul of the furnace. In addition, the dismantling and repair of certain parts of the furnace will inevitably affect the lifespan of other parts. Therefore, when selecting materials, all the life spans of each part of the masonry should be considered to make them accustomed to each other.
(4) Economically, is it necessary to do a technical and economic analysis when selecting materials reasonably? On the premise that the technical indicators meet the working conditions of the furnace, refractory materials with low quotations should be used as much as possible instead of high-end finished products. It is necessary to think about whether you can start making it yourself (such as irrigating refractory concrete), and try to adapt to local conditions, repair the old and make use of the waste.