The Short Rotary Furnace (SRF) remains the most widely used vessel for Pb recycling. In rotary reverberatory or short rotary furnaces not only grids, poles and lead paste but also by-products of lead refining are re-processed. Depending on slag chemistry and process (high soda slag or low soda slag) different lining concepts are in use.
Experience showed that high-purity MgCr brands, based on fused grain or OXICROM products, perform best in the SRF. The presence of PbO requires the application of products with special porosities and with lowest SiO₂ contents to avoid eutectics with low melting points.
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Low porosity
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High chemical resistance
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High abrasion resistance
Application Area | Item | TRLK Brand (Brick)
Barrel
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Ceramic Fiber Paper / Board – Ceramic Fiber Paper / Board
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Safety Layer – TRL 42 D
End wall
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Working Layer – TRL SW HSR3 / TRL CRXS / TRL CRXS A
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Safety Layer – Ceramic Fiber Paper / Board
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Working Layer – TRL 42 D
Layer (Charging & Burner side)
End wall – TRL SW HSR3 / TRL CRXS / TRL CRXS A
Charging Side mouth Brick – TRL CAST AH 50 (Plus)
Burner side mouth Brick – TRL CAST AH 50 (Plus)
Tap hole back filling castable – Tap hole back filling castable
Tap hole back cup castable – TRL CAST CR 35
Tap hole mouth castable – TRL CAST FLOWCAST CR 10
Working Layer Mortar – TRL DMC M
Application Area | Item | TRLK Brand (HAL Brick)
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Ceramic Fiber Paper / Board – Ceramic Fiber Paper / Board
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Safety Layer – TRL 42 D
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Working Layer – Andalusite-based alumina bricks, Fused alumina and high-alumina bricks, Ceramically bonded alumina bricks
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TRL 85 C BST / TRL 80 P / TRL 70 LRF
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End wall, Layer (Charging & Burner)
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Ceramic Fiber Paper / Board – Ceramic Fiber Paper / Board
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Safety Layer – TRL Incast 7 / TRL Incast 11
Burner side mouth brick & Charging side mouth brick
Working Layer – TRL CAST LC 90 / TRL CAST AH 90
Tap hole Back filling castable – TRL CAST AH-50 (Plus)
PCPF Block – TRL 80 G PCPF Tapping Block
Working Layer Mortar – TRL 85 M / TRL 80 M / TRL 70 M