THE YEAR-BOOK OF THE COKE OVEN - Coke Oven Managers ...

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emoved to reveal the brickwork needing repair as shown in figure 27. Atthis stage cracked and damaged burning bottles are also renewed asrequired. No. 62 wall was a rare case where all 7 of the coke side outergas bottles were so damaged that gas was tracking via the side of theupper bottles, located to the rear of the corbels, into the regeneratorarea. Stainless steel inserts were fitted into this region but these burntaway after approximately 2 months. These were later replaced with ahigher temperature rated stainless inserts in April 2007, and to date all ofthese flues are still burning satisfactorily. At this stage of a throughwallairports are checked and cleared if found blocked with brick.Fig 28: Completed high burner showing stainless tie-in bandsDuring the heating wall construction, a stainless steel band is used onhigh burners to prevent toppling as the wall moves on expansion asshown in figure 28. Due to the weight of the bricks it is possible to buildonly a few courses at a time due to the compression of cement before itsets. Figure 29 shows the facia plates are set by the small springs tocontrol the firebrick expansion (which is less than the silica).Thermocouples are fitted into flues 6, 13, 22 & 28 of the heating wallfrom the cellars area for the warm up. The warm up contractors then fitthree thermocouples into each oven chamber and all the thermocouples26
Fig 29: Fascia Plates and Tie bars at <strong>Oven</strong> topFig30:HighVelocityBurners inpositionarewired up to a recorder. Figure 30 shows the high velocity burners inposition. The large pipe is for air and small for coke oven gas.Combustion occurs in the burner chamber and venturi ensures hotproducts of combustion are exhausted into the oven at high velocity and27
Page 2: Main types of refractory repairThe
Page 5 and 6: 3. Conveying - The powder is mixed
Page 7 and 8: The end wall rebuild processFigure
Page 9 and 10: Fig 6: Roof Support techniqueRoof s
Page 11 and 12: 5. If excessive damage is seen gas
Page 13 and 14: Fig 10: Traditional Warm-up Practic
Page 15 and 16: Since 1984 most of theoven walls ha
Page 17 and 18: To support the filled charge car, w
Page 19 and 20: Fig 17: Rolling the curtain rail in
Page 21 and 22: Fig 20: Triple throughwall during w
Page 23 and 24: Blankets are lashed back at the bot
Page 25: Fig 26: Regenerator dividing wall r
Page 29 and 30: metres, this equates to around 200m
Page 31: Closing RemarksApart from the maint

THE YEAR-BOOK OF THE COKE OVEN - Coke Oven Managers ...

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