Taking fly ash from coal combustion as the object

the influence of chemical agglomeration agent

temperature and agent mass fraction and anionic surfactant on fly ash particles agglomeration were analyzed.Moreover

the effects of chemical composition and temperature on fly ash resistivity were also investigated.The results show that

in several kinds of agglomerant the carrageenan(KC)had the most remarkable effect on fly ash fine particles agglomeration.The particle agglomeration effect got better as the agglomerant concentration was increased.In a certain temperature range

the agglomeration effect got better with the temperature.The anionic surfactants such as sodium dodecyl benzenesulfonate(SDBS)and sodium dodecyl sulfonate(SDS)had a negative effect on the agglomeration.The content of silicon and aluminum had a remarkable positive correlation with the fly ash resistivity

while that of calcium and sulfur had a negative correlation with it.In a certain temperature range

the fly ash resistivity increased with the temperature.The resistivity can be reduced by decreasing the temperature.Therefore

the chemical agglomeration technology can enhance the efficiency of dust removal equipment.