BISCUIT OVEN TROUBLE SHOOTING
Biscuit bottom black check the band clean the band with band brush and restart the operation .
Biscuit have cracks on top check the steam dampers close the dampers .
Biscuit are dark in color .check the temperatures of zone and reset temperature by decreasing
temperature of zones and adjusting the dampers of flue gas .
Biscuits are pale in color .reverse of above reset temperature by increasing temperatures of
zones and adjust dampers of flue gas.
Oven band tracking .
Check the idle rollers at bottom of oven .Adjust the screw provided to align drive drum of oven
band .Check whether band is damaged or not in case it is remove that section or replace the
entire band .
Clean band regularly for good biscuit production as carbon deposition are normal which in
results in black spot in bottom of oven band .
Check combustion of burners if flue gas is negligible then combustion is good in case it is white or
dark brown then combustion is improper .Adjust air -fuel ratio.
Clean burner nozzles regularly .
Check and grease in circulating fan motor and steam extraction fans .
Check for fire tubes and its condition and in case required repair the fire tube .
Different types biscuit ovens
Biscuit bottom black check the band clean the band with band brush and restart the operation .
Biscuit have cracks on top check the steam dampers close the dampers .
Biscuit are dark in color .check the temperatures of zone and reset temperature by decreasing
temperature of zones and adjusting the dampers of flue gas .
Biscuits are pale in color .reverse of above reset temperature by increasing temperatures of
zones and adjust dampers of flue gas.
Oven band tracking .
Check the idle rollers at bottom of oven .Adjust the screw provided to align drive drum of oven
band .Check whether band is damaged or not in case it is remove that section or replace the
entire band .
Clean band regularly for good biscuit production as carbon deposition are normal which in
results in black spot in bottom of oven band .
Check combustion of burners if flue gas is negligible then combustion is good in case it is white or
dark brown then combustion is improper .Adjust air -fuel ratio.
Clean burner nozzles regularly .
Check and grease in circulating fan motor and steam extraction fans .
Check for fire tubes and its condition and in case required repair the fire tube .
Different types biscuit ovens
Useful Link s On Bakery Industry
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