广州化工
廣州化工
엄주화공
GUANGZHOU CHEMICAL INDUSTRY AND TECHNOLOGY
2011年
21期
144-146
,共3页
脱硫粉煤灰%粒径%微观形态%矿物组成%重金属
脫硫粉煤灰%粒徑%微觀形態%礦物組成%重金屬
탈류분매회%립경%미관형태%광물조성%중금속
desulfurized fly ash%particle size%microstructure%mineral composition%heavy metal
研究电厂脱硫粉煤灰以粒径在3～45μm的颗粒为主,数量占80%以上,并多是表面光滑的球形微珠,主要的矿物成分是莫来石和石英,它的排放因子达到了2.45 kg/t。脱硫粉煤灰的元素组成选取了Mn、Zn、Cr、Cu、Pb、Ni、Cd七种元素,其中Mn在脱硫粉煤灰中的含量最高,但Mn元素的相对富集因子则小于Zn元素的相对富集因子,说明元素含量高其相对富集因子不一定大,还需要考虑电厂燃烧的煤种中的元素含量,从而来确定元素的富集行为。
研究電廠脫硫粉煤灰以粒徑在3～45μm的顆粒為主,數量佔80%以上,併多是錶麵光滑的毬形微珠,主要的礦物成分是莫來石和石英,它的排放因子達到瞭2.45 kg/t。脫硫粉煤灰的元素組成選取瞭Mn、Zn、Cr、Cu、Pb、Ni、Cd七種元素,其中Mn在脫硫粉煤灰中的含量最高,但Mn元素的相對富集因子則小于Zn元素的相對富集因子,說明元素含量高其相對富集因子不一定大,還需要攷慮電廠燃燒的煤種中的元素含量,從而來確定元素的富集行為。
연구전엄탈류분매회이립경재3～45μm적과립위주,수량점80%이상,병다시표면광활적구형미주,주요적광물성분시막래석화석영,타적배방인자체도료2.45 kg/t。탈류분매회적원소조성선취료Mn、Zn、Cr、Cu、Pb、Ni、Cd칠충원소,기중Mn재탈류분매회중적함량최고,단Mn원소적상대부집인자칙소우Zn원소적상대부집인자,설명원소함량고기상대부집인자불일정대,환수요고필전엄연소적매충중적원소함량,종이래학정원소적부집행위。
The results showed that the content of granule between 3 to 45μm was more than 80%,there were more spherical particles with smooth surface and the mineral composition mainly were mullite and quartz,and the emission factor of the desulfurized fly ash reached to 2.45 kg/t.Mn,Zn,Cr,Cu,Pb,Ni and Cd elements in desulfurized fly ash were selected.The concentration of Mn was the highest in the fly ash,while the relative enrichment factor of Mn was smaller than that of Zn.It was indicated that the concentration of elements in the coal must be considered for determining the enrichment behavior of the elements.
