The effectiveness of sulpher fixation in the furnace after adding composite sulpher fixation agent which takes alkaline-earth metal Ca

Ba

Sr salt as the main components has been studied on the horizontal pipes' furnace in laboratory and in the boiler of 100 MW unit

the influence of adding ratio concerning composite sulpher fixation agent upon the sulpher fixation efficiency

the SO3 content in fly ash

the sulpher distribution characteristics

and the combustion in boiler being analysised.Results show that the sulpher fixation efficiency in horizontal pipes' furnace reachs 9.2%

22.4%

and 52.4% respectively as the adding ratio of composite sulpher fixation agent being 0.5%

1%

and 2% respectively

and teh sulpher fixation efficiency in boiler of 100 MW unit reaches 6.6%

15.8%

and 23.6% respectively.Along with increasing teh adding ratio of composite sulpher fixation agent

the ratio of sulpher content in flue gas to the total sulpher in coal before entering teh furnace decreases

but the sulpher content in fly ash to the total sulpher in coal before entering the furnace increases

the effectiveness of sulpher fixation being remarkable.