750-368
CBEX Elite 100-1200 HP
8-27
8.19 — Front Door and Rear Access Plug
FIGURE 8-24. Throat Tile and Furnace Liner Installation Notes
8.19 — Front Door and Rear Access Plug
8.19.1 — Opening Front Door
Before opening the door, tighten the nut on the davit arm to create a
slight tension. This will minimize sagging and facilitate opening of the
door. After opening, check the gaskets and seating surfaces. Replace
the door gaskets if they are hard or brittle. Clean the sealing surfaces of
the door and tube sheet.
After the boiler is back in operation, re-tighten the door bolts to com-
pensate for compression of the gasket or movement of the door.
FIGURE 8-25. Tighten the Davit Nut
1) No insulation or cut bricks to be installed in upper 120° section of the furnace.
2) Pack all bricks tightly with a mallet and remove excess mortar. Typical mortar joints shall be
approximately 1/16" .
3) Do not apply mortar between insulation and bricks, tiles, or furnace.
4) Do not cover furnace weld seams with insulation. Cut a strip of insulation out to reveal weld.
5) During installation, su
pport upper tiles with wooden supports in a diagonal fashion until row
is complete.
6) To insure a tight fit and maximum I.D. of arch bricks, place a 3" square scrap piece of insulation
as a shim between bricking tool collar and I.D. of upper half of arch bricks (as nessesary).
7) Stagger liner tile mortar joints at each row.
8)
Do not fill the first half corrugation.
9) Use arch brick instal
lation tool (see table).
Arch brick installation tool must be fastened to furnace ring with a minimum
of ( 2) 5/ 8- 11 UNC nut s 180° ap art .
Arch brick installat ion tool
BHP Part number
100-125
150-200
350-400
500-600
700-800
900-1000
1100-1200
098-00385
098-00336
098-00333
098-00375
098-00334
098-00394
098-00365
*
[500 HP and up] Fill the first two (500-600 HP) or four (700-1200 HP) full furnace corrugations under
the liner tiles with Vee-Block mix (Item #5) below the horizontal centerline (3 o-clock to 9 o-clock position).
*
See parts section (Chapter 9) for arch brick & liner tile part numbers
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