Sheet 4343-2 Page 2
EXAMPLE MOUNTING BOX CONSTRUCTION FOR ANGLED FIRIN G
furnace wall
Necessary furnace shell reinforcement not shown.
tile
mounting plate
mounting box by customer
MOUNTING TwinBed ® II TwinBed II’s regenerator weight requires structural support beyond conventional burner requirements. Furnace shell must be rigid and the regenerator should be supported with tie rods or columns. IMPORTANT POINTS ABOUT MOUNTING TwinBed ® II 1) The burner mounting box should be rigid enough to secure burner to furnace without warping or buckling from heat or regenerator load. 2) Use vertical or angled tie rods as shown (drawing page 1) to support regenerator weight. Tie rods must not be more than 30 degrees from vertical. 3) Vertical columns are an alternate to tie rod support of the regenerator but, they must have provision for thermal expansion by the furnace and burner.
IMPORTANT POINTS ABOUT TILE CONSTRUCTION FOR TwinBed ® II
1) Burner tile should be cast or rammed dense refractory rated for 3300° F or higher.
2) The in-situ rammed or cast tile structure must be securely anchored back to the mounting plate and/or furnace shell with metal or refrac- tory anchors. 3) Use mounting box construction for thin wall furnaces to increase tunnel depth to at least 15 inches. Angled firing usually requires mounting box construction. 4) Suitable expansion joints should be provided in the surrounding wall structure to prevent displacement of the tile from the mounting by refractory movement.
WARNING: Situations dangerous to personnel and property may exist with the operation and maintenance of any combustion equipment. The presence of fuels, oxidants, hot and cold combustion products, hot surfaces, electrical power in control and ignition circuits, etc., are inherent with any combustion application. Components in combustion systems may exceed 160°F (71°C) surface temperatures and present hot surface contact hazard. Fives North American Combustion, Inc. suggests the use of combustion systems that are in compliance with all Safety Codes, Standards, Regulations and Directives; and care in operation.
CONTACT fna.sales@fivesgroup.com T +1 800 626 3477 - F +1 216 373 4237
Fives North American Combustion, Inc. 4455 East 71st Street - Cleveland, OH 44105 - USA www.fivesgroup.com
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