IN2013MU02554AIN2554MU2013AIN2013MU02554AIN 2013MU02554 AIN2013MU02554 AIN 2013MU02554AIN 2554MU2013 AIN2554MU2013 AIN 2554MU2013AIN 2013MU02554 AIN2013MU02554 AIN 2013MU02554A
Authority
IN
India
Prior art keywords
chamber
injected
air
incineration
flue gases
Prior art date
Application number
Inventor
Dilip Waman Bapat
Samir Vasudeo Kulkarni
Prasad Kisan Autade
Original Assignee
Thermax Ltd
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Publication date
Application filed by Thermax LtdfiledCriticalThermax Ltd
Priority to IN2554MU2013priorityCriticalpatent/IN2013MU02554A/en
Publication of IN2013MU02554ApublicationCriticalpatent/IN2013MU02554A/en
The present disclosure teaches an incineration method and apparatus for non-fouling treatment of spent wash wherein primary air is.injected in to a first chamber (12) while secondary air and tertiary air are injected into a second chamber (14). The primary air, the secondary air and the tertiary air are injected in predetermined proportion to substantially convert spent wash injected into the incineration apparatus into flue gases. The heat from the flue gases are progressively extracted in the second chamber (14), a third chamber (16) and a fourth chamber (18) using non-thermic fluid. This prevents agglomeration of the fluidized bed, slagging on walls and tubes associated with the second chamber (14), the third chamber (16) and the convection tubes within the fourth chamber (16), thereby preventing fouling of the incineration apparatus while ensuring efficient removal of ash from the flue gas.
Method and plant to process ashes that comprises burning the ash in fluidized bed combustion at a temperature of no more than 800ºC to reduce the carbon content and burn the combustion gases in an independent combustion process at a temperature of at least 850ºC .