گوگرد زدايي از زغال سنگ هاي كك شو طبس

Desulphurization of Tabas Coals Coke

ﮔﻮﮔﺮد ﺑﻪ ﺻﻮرت ﻣﻌﺪﻧﯽ و آﻟﯽ در زﻏﺎل ﺳﻨﮕﻬﺎ وﺟﻮد دارد و ﯾﮑﯽ از ﻣﻬﻤﺘﺮﯾﻦ ﻋﻨﺎﺻﺮ ﻣﺰاﺣﻢ در ﺻﻨﻌﺖ ﻓﻮﻻد ﺳﺎزي اﺳﺖ . ﺑﺎﻻ ﺑﻮدن درﺻﺪ ﮔﻮﮔﺮد ﻣﻮﺟﻮد در زﻏﺎل ﺳﻨﮕﻬﺎي ﻃﺒﺲ ﺑﻪ ﻋﻨﻮان ﯾﮏ ﻋﻨﺼﺮ آﻻﯾﻨﺪه و ﻣﻀﺮ ﻣﻄﺮح ﻣﯽ ﺑﺎﺷﺪ. ﮔﻮﮔﺮد ﻋﻼوه ﺑﺮ ﮐﺎﻫﺶ راﻧﺪﻣﺎن ﺗﻮﻟﯿﺪ در ﮐﺎرﺧﺎﻧﻪ ﻫﺎي ﮐﮏ ﺳﺎزي ، ﺑﺎﻋﺚ آﻟﻮدﮔﯽ ﻣﺤﯿﻂ زﯾﺴﺖ ﻣﯽ ﮔﺮدد. ﺑﺮرﺳﯽ ﮐﺎﻫﺶ ﻣﯿﺰان ﮔﻮﮔﻮد ﺑﻪ روﺷﻬﺎي ﻓﯿﺰﯾﮑﯽ ﻣﺎﻧﻨﺪ ﺷﻨﺎور ﺳﺎز ﯾﮑﯽ از اﻫﺪاف اﯾﻦ ﻧﻮﺷﺘﺎر ا ﺳﺖ. ﺑﺮرﺳﯽ ﻧﻤﻮﻧﻪ ﻫﺎي زﻏﺎﻟﯽ در روش ﺷﻨﺎور ﺳﺎزي و ﻓﺎﮐﺘﻮر ﻫﺎي ﻣﻮﺛﺮ دراﻓﺰاﯾﺶ راﻧﺪﻣﺎن ﺟﺪاﺳﺎزي ﮔﻮﮔﺮد ﻣﻮرد ﺑﺮرﺳﯽ ﻗﺮار ﻣﯽ ﮔﯿﺮد . ﻋﻮاﻣﻠﯽ ﻫﻤﭽﻮن ﻣﯿﺰان ﺧﺎﮐﺴﺘﺮ ،ﺗﺎﺛﯿﺮﮐﻠﮑﺘﻮرﻫﺎ و ﮐﻒ ﺳﺎزه ﻫﺎ و وﯾﮋﮔﯿﻬﺎي ﻣﮑﺎﻧﯿﮑﯽ و ﺷﺮاﯾﻂ ﺳﻠﻮﻟﻬﺎي ﺷﻨﺎور ﺳﺎزي ﻣﺪ ﻧﻈﺮ ﻗﺮار دارد. ﻣﻘﺪار ﮐﻠﮑﺘﻮر و ﻣﻘﺪار ﮐﻒ ﮐﻨﻨﺪه و درﺻﺪ ﭘﺎﻟﭗ و زﻣﺎن ﻣﺎﻧﺪ ﻣﺘﻐﯿﺮﻫﺎﯾﯽ ﻫﺴﺘﻨﺪ ﮐﻪ در زﻣﯿﻨﻪ ﮐﺎﻫﺶ ﮔﻮﮔﺮد زﻏﺎل ﺳﻨﮓ در روش ﻓﻠﻮﺗﺎﺳﯿﻮن ﻣﻮﺛﺮ ﻣﯽ ﺑﺎﺷﻨﺪ. ﺑﺎ اﻓﺰاﯾﺶ ﻣﻘﺪار ﮐﻠﮑﺘﻮر ﻧﻔﺖ ﺳﻔﯿﺪ، ﻣﻘﺪار ﺑﺎزﯾﺎﻓﺖ و ﻣﯿﺰان ﮐﺎﻫﺶ ﮔﻮﮔﺮد ﭘﯿﺮﯾﺘﯽ ﺑﺎ ﯾﮏ روﻧﺪ آرام اﻓﺰاﯾﺶ ﻣﯽ ﯾﺎﺑﺪ. اﻓﺰاﯾﺶ ﯾﺎ ﮐﺎﻫﺶ ﺑﯿﺶ از ﺣﺪ دور ﻣﻮﺗﻮر، ﻣﯿﺰان ﮔﻮﮔﺮدزداﯾﯽ را ﮐﻢ ﻣﯽ ﮐﻨﺪ. اﻓﺰاﯾﺶ درﺻﺪ ﭘﺎﻟﭗ ﺑﺮ روي ﮐﺎﻫﺶ ﮔﻮﮔﺮد و ﮐﺎﻫﺶ ﺧﺎﮐﺴﺘﺮ درﺻﺪ ﺑﺎزﯾﺎﻓﺖ را اﻓﺰاﯾﺶ ﻣﯽ دﻫﺪ.

Sulfur is an organic and mineral in coal and is one of the most disturbing elements in the steel industry.The high percentage of sulfur in Tabas coal is considered as a polluting and harmful element. Sulfur, in addition to reducing the production efficiency of coking plants, causes environmental pollution. The study of reducing the amount of sulfur by physical methods such as flotation is one of the goals of this paper.Investigation of coal samples in flotation method and effective factors in increasing the efficiency of sulfur separation are investigated .Factors such as ash content, the effect of collectors and Foam maker, mechanicalproperties and floating cells conditions are considered.The amount of collector, the amount of foaming and pulp percentage and the remaining time are the parameters that are effective in reducing the sulfur content of the flotation method.By increasing the amount of Gasoil collector, the amount of recycling and the amount of pyrite sulfur decreases with a slow process. Increasing or reducing excessive engine speed reduces the rate of desulfurization. Increasing pulp percentages on reducing sulfur and reducing ash increases recycling rates.