Burner Tile Installation Recommendations for fiber-lined furnaces
Supplement DF-M2
10. For applications exceeding 2200°F furnace temperature, install ceramic fiber board shield as illustrated in Figures 2A and 2B. 11. Important: After initial firing of furnace at design tem- perature, check fiber shrinkage in vicinity of burner tile. Repack any voids with bulk fiber insulation to maintain a gas-tight seal between furnace interior and shell. BURNER TILE REPLACEMENT On fiber-lined furnaces requiring tile replacement, fiber insulation near tile may prevent wrapping and fastening wrap as described in Steps 7 and 8 above. In such cases, the following procedure is recommended. TILE REPLACEMENT (REFER TO FIGURE 1) 1. Bolt mounting plate and burner tile to shell with gasket (F) in place.
Guide for installing burner tile in a fiber-lined furnace- -maximum temperature 2200°F. (See back for higher temperature applications and for all flat flame type burner tile installations.) INITIAL INSTALLATION (REF. FIGURE 1) 1. Cut opening in furnace shell allowing clearance around tile or mounting plate lip. Check burner bulletin for recommended clearance (about ½").
2. Drill holes in furnace shell around opening to match burner mounting plate bolt holes.
3. Insert mounting bolts (G) (not provided) and weld heads to inside of furnace shell.
4. Weld channel stiffeners to outside of furnace shell as required.
5. Bolt mounting plate and tile to shell with gasket (F) in place if supplied.
2. Coat outside of tile with air setting refractory cement (C). Also, fill clearance gap with cement.
6. Coat outside of tile with air setting refractory cement (C). Also, fill clearance gap between shell opening and tile with cement.
3. Pack area between tile and furnace lining with bulk refractory fiber of a quality suitable for furnace design temperature. Compress bulk fiber at least 25% during packing.
7. Wrap exposed tile length with continuous strip of blan- ket insulation (B) two layers thick.
4. Use a fiber board shield to retain the packed bulk fiber. (Refer to Figures 2A and 2B.)
8. Compress and secure wrap to tile, using a suitable non- metallic tape (E). Do not use string as it tends to cut the blanket. Compression of wrap should be at least 25%. 9. Install fiber insulation tightly against wrapped tile, following supplier's recommended procedure for anchoring and compressing fiber. All irregular-shaped sections must be packed with fiber.
5. Repeat Step 11 (check) above.
See page 2 for Figure 1 and legend.
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