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Anchors

Anchors. Function Roof , Wall or Floor Temperature? Chemical attack on the anchors? Do they need to support the weight of the lining? Or are the anchors only required to hold the lining in place? Type and thickness of the insulation? Expansion/movement of the lining?. Materials

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Anchors

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  1. Anchors

  2. Function Roof , Wall or Floor • Temperature? • Chemical attack on the anchors? • Do they need to support the weight of the lining? • Or are the anchors only required to hold the lining in place? • Type and thickness of the insulation? • Expansion/movement of the lining?

  3. Materials • Steel alloy anchors Max. spec. temp.Actual max. temp • 304 (Cr/Ni 18/8) 1.4301 800oC 900 - 1000oC • 309 (Cr/Ni 1.4828 1000oC • 253MA (Cr/Ni ) 1.4893 1050oC 1100 - 1200oC • 310/314 (Cr/Ni 25/20) 1.4841 1150oC 1100 - 1200oC • 310S (Cr/Ni 25/20) 1.4845 1150oC 1100 - 1200oC Other factors : Stable/fluctuating temperatures, Sigma phase development, Chemical attack, • Ceramic anchors 1400 - 1800oC • Pressed brick • Precast LCC

  4. Steel Alloy Anchors • Flat anchors • Simple to produce • Low cost • Roundanchors • Corrugated Cast steelanchors

  5. Steel Alloy Anchors • Guidelines • Length of anchor 2/3 of total liningthickness Nevercloser to the hot facethan 20mm • Size 6 – 12mm dependingon load and risk of chemicalattack • SpacingLiningthickness 200 – 350mm : spacing 200 – 250mm Liningthickness under 100mm : spacing 50 – 100mm • WeldingElectrode must match the highest grade of steelused • ExpansionAlwaysuse plastic caps

  6. Ceramic Anchors Pressed brick anchors

  7. Ceramic Anchors Traditionally - plastic orwoodenwedgesareused to hold the anchorshorizontal

  8. Ceramic Anchors

  9. Ceramic Anchors Precast LCC Anchors • Roundshape • Smaller diameter • Stronger • Same expansion as the castable

  10. Ceramic Anchors Pressed brick anchors Precast LCC

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