Grate: Difference between revisions

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===Auxiliary Burners===
===Auxiliary Burners===
Auxiliary burners are used at start up to heat the furnace to a required temperature before the [[Waste|waste]] is introduced. If the temperature falls below the desired value during operation, the burners are switched on automatically. The burners are utilised for shutdown to maintain the furnace temperature and ensure there is no unburnt [[Waste|waste]] left in the furnace.
Auxiliary burners are used at start up to heat the furnace to a required temperature before the [[Waste|waste]] is introduced. If the temperature falls below the desired value during operation, the burners are switched on automatically. The burners are utilised for shutdown to maintain the furnace temperature and ensure there is no unburnt [[Waste|waste]] left in the furnace<ref name="ref1" />.


==Different Grate Types==
==Different Grate Types==
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===Roller grate===
===Roller grate===
The roller [[Grate]] design consists of a perforated roller that traverses the width of the [[Grate]] area. Several rollers are installed in series which rolls or tumbles the material forward, towards the [[Fly Ash|ash]] discharge.
The roller [[Grate]] design consists of a perforated roller that traverses the width of the [[Grate]] area. Several rollers are installed in series which rolls or tumbles the material forward, towards the [[Fly Ash|ash]] discharge<ref name="ref1" />.


==Incineration Temperature, Residence Time and Oxygen Content==
==Incineration Temperature, Residence Time and Oxygen Content==
[[Incineration|Incinerators]] are designed and operated to ensure good burnout of the [[Combustion|combustion]] gases. This is achieved by maintaining the gases at a maximum temperature for a minimum residence time at a minimum oxygen level. Temperature values typically range between 850°C to 1 100°C for at least two seconds at a minimum oxygen level of 6%. Higher temperatures can be associated with [[Hazardous Waste|hazardous waste]]. The carbon monoxide content of the [[Flue Gas|flue gases]] is a main indicator of the quality of [[Combustion|combustion]].  
[[Incineration|Incinerators]] are designed and operated to ensure good burnout of the [[Combustion|combustion]] gases. This is achieved by maintaining the gases at a maximum temperature for a minimum residence time at a minimum oxygen level. Temperature values typically range between 850°C to 1 100°C for at least two seconds at a minimum oxygen level of 6%. Higher temperatures can be associated with [[Hazardous Waste|hazardous waste]]. The carbon monoxide content of the [[Flue Gas|flue gases]] is a main indicator of the quality of [[Combustion|combustion]]<ref name="ref1" />.  




==References==
==References==
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