Application Of Refractories In Different Parts Of Glass Furnaces

Refractories are the main building materials for glass furnaces. It has a d ecisive impact on the quality of glass, energy consumption and the cost. Th e development of glass melting technology mainly depends on the development and quality of refractories.

Sidewall and bottom of melter predominately consist of fused cast AZS block , whereas sintered zirconia mullite brick in some cases can be applied to b ottom area, where the application condition is not that demanding. Beneath the fused cast AZS lie the chamotte block at the very bottom, in between AZ S ramming mix is filled. In corner area fused cast AZS with Void Free Casti ng is used exclusively. Fused cast AZS is so far the primary refractory bri ck for glass furnace.

In tin bath, alumina forming brick such as sillimanite and bottom block are used typically.

Silica brick is used also quite frequently in glass furnace. It finds its a pplication for melter crown, front wall, breast wall and gable as well. It is the traditional choice for the crown.

?-? Fused cast alumina block is used extensively for breast wall, as well as sidewall and bottom of cooling zone. Fused cast ?-?al umina block and Fused cast ?alumina block are also used in the crown a nd superstructure.

Direct-bonded magnesia chrome brick is most suitable for upper checker, whe re strong alkali corrosion exist, or lower and middle checker, where sodium sulfate condenses. There are several substitute brick of chrome magnesia f or checker chamber, among them are magnesia zirconia brick, magnesia forste rite brick and magnesia alumina brick. While the first two have similar the rmal properties and usage as magnesia chrome brick, magnesia alumina brick is usually used for the middle checker of small regenerator. Light weight m agnesia forsterite brick is used for the insulation layer of checker chambe r. Sillimanite brick can be used also for checker in low temperature area (

line with that of checker brick at the same height.

Sunrise is a refractory material supplier from China. The main products of Sunrise include fused cast AZS block, fused cast alumina block, mullite bri ck, zircon brick, alumina bubble brick, sillimanite brick, corundum brick, low porosity fireclay brick, high alumina brick, all kinds of glass furnace ramming masses, etc..

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