sulphure ring in kiln 14 to 22 meter

Dear Ted

Please find enclosed sulphure balance for our pyro section which is clearly shown 22% sulphure not balalnce in system and recirculate.

we are continue facing coaing and ring formation in kiln between 14 to 22meter and every 7 to 8 days we have to stop the kiln and clean the coating manually.

please suggest what are the measures we have to take to control the coating formation, We have KHD pulsjet burner but by adjusting swirl and axial still there is no impact on reduction in coating formation.

 

please suggest any specific burner setting required.

please ask in case any specific data required foranalysis

please find the sulphure balalnce:-

Date	9.10.18
	Parameter	UoM
	Clinker Production	TPH	92.90	2230
Input	Coal   sulphure	%	4
	Coal consumption	% Cli.	15
	Sulphure from Coal	tons/Hrs	0.56
	So3 In Raw Meal	%	1.30
	Raw Meal requ.	tons/Hrs	137
	So3 from raw meal	tons/Hrs	1.8
	Sulphure from raw meal	tons/Hrs	0.71
	Total Input sulphure	tons/Hrs	1.27
Output	So3 in clinker	%	2.6
	So3 from clinker	Tons/hr	2.4
	Sulphure from clinker	Tons/hr	0.97
	So2 in PH OL gas	mg/NM3	650
	RABH OL gas volume	Nm3/Kg of clinker	2.35
	RABH OL gas volume	Nm3/Hr	218315
	So2 in RABH OL gas	Mg/Hr	141904750
	So2 in RABH OL gas	Tons/hr	0.14
	Sulphure from PH OL gas	Tons/hr	0.071
	Total	Tons/hr	1.04
Diff	Input-Output	Tons/hr	0.24
	balance Sulphur in circuit		18.49

 

with regards

Raju

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re sulphure ring in kiln 14 to 22 meter

interested to read your query.. for  my knoledge can you explain and how to derive sulpur from raw meal , so3 in rawmeal and from raw meal.% so3 in kiln feed.

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re sulphure ring in kiln 14 to 22 meter

There is one simple way, you control volatile factor below 2 , ie. VF=clinker SO3/ previous hour KF DC sample SO3.

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re sulphure ring in kiln 14 to 22 meter

  Dear Mr Anm,

                   Can you pl clarify whats KF DC sample SO3. (is it hot raw meal so3 or degree of calcination/??)

 

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