Regenerators glass-tank

As a result of the larger flues and the restric ted surface area per unit of gas passed, regenerators employed with this type of furnace exhibit much lower efficiency than would be reahzed with smaller flues. In view of the large amount of iron oxide contained in open-hearth exhaust gas and the alkah fume present in glass-tank stack gases, however, smaller checkerbrick dimensions are considered imprac tical. 

A similar system of checkerwork regenerators is used in connection with glass-tank heat-storage systems,... 

Fig. 5.23. Refractory checkerwork regenerator, widely used with steel open-hearth furnaces, and still used with large glass-tank melting furnaces. Positions of the bottom valves and fuel lance valves are reversed about every 20 min.

WEAR OF BASIC REFRACTORIES IN GLASS TANK REGENERATORS... 

Wear of Basic Refractories in Glass Tank Regenerators... 

This paper described some of the principal wear mechanisms of basic refractories used in glass tank regenerators. Alteration of refractories by V2O5 and depletion of CaO from refractories exposed to sodium sulfate was discussed. Alkali attack on forsterite-bonded basic brick was described. Properties of a new type of forsterite-bonded brick that offers the potential for improved performance were presented. 

Flume. Local term for the alkali vapour volatilized from the glass in a glass-tank furnace it causes corrosion of the furnace roof, downtakes, and regenerator refractories. (A corruption of Fume .)... 

Rider Bricks. Refractory bricks, which may be solid, perforated or arched, used in the base of a regenerator chamber to form a support for the checker bricks in a coke-oven regenerator, also known as SOLE-FLUE PORT BRICKS Or NOSTRIL blocks in a glass tank regenerator, also known as the rider arch, bearer arch or saddle arch. 

Slag Pocket. A refractory-lined chamber at the bottom of the downtake of an open-hearth steel furnace, or of a glass-tank furnace, designed to trap slag and dust from the waste gases before they enter the regenerator. 

The principal use of forsterite refractories is in Europe, but apphcations throughout the world have been reported. Its main uses are as steel-making refractories for tundish boards, sprays, and back fiUings ladle safety linings for dolomite brick and in electric arc furnace safety linings and roof brick. In industrial furnace applications, forsterite is employed in alloy foundries and glass tank regenerators. 

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