2016年7月7日星期四
Dry tailings discharge equipment: Tailings Disposal and Application
Dry tailings discharge equipment: Tailings Disposal and Application: Tailings is one of the products of mineral dressing,along with the granularity of tailings ground more fine,tailings emissions is more and m...
Tailings Disposal and Application
Tailings is one of the products of mineral dressing,along with the granularity of tailings ground more fine,tailings emissions is more and more big,the tailings has become a major dangerouse of metal mines.
Because of the limitation of current techinical and ecnomic conditions,tailings have unfavorable further separation.depend on the tailings concentration,it can be divided into slurry,paste tailings and tailings filter cake.At present,the tailings disposal technology is basicly dry stacking of tailings and pit fill.but because of the tailings preparation and delivery concentration is too low and there are many problems,Such as easy segregation layered,low intensity,difficult dehydration,severe wear of pipeline,a long time consolidation.surface paste stack and underground paste filling is a promising way to deal with the tailings.
Dry stacking of tailings is concentrated by hydrocyclone,while the coarse particles directly into the dewatering screen for dehydration dry stacks,the ultra fine tailings enters into efficient thickener turns into paste and then pumped and transported to a certain locations dealt with filter press.
With the development of fillings techniques,the tailings as the main filling material is used to fill mined out area,which not only solves the problem of the dispossal of the tailings but also provides a feasible scheme for the treatment of mined out area.
Because of the limitation of current techinical and ecnomic conditions,tailings have unfavorable further separation.depend on the tailings concentration,it can be divided into slurry,paste tailings and tailings filter cake.At present,the tailings disposal technology is basicly dry stacking of tailings and pit fill.but because of the tailings preparation and delivery concentration is too low and there are many problems,Such as easy segregation layered,low intensity,difficult dehydration,severe wear of pipeline,a long time consolidation.surface paste stack and underground paste filling is a promising way to deal with the tailings.
Dry stacking of tailings is concentrated by hydrocyclone,while the coarse particles directly into the dewatering screen for dehydration dry stacks,the ultra fine tailings enters into efficient thickener turns into paste and then pumped and transported to a certain locations dealt with filter press.
With the development of fillings techniques,the tailings as the main filling material is used to fill mined out area,which not only solves the problem of the dispossal of the tailings but also provides a feasible scheme for the treatment of mined out area.
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| dry tailings stacked |
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| tailings dewatering |
2016年7月5日星期二
2016年6月28日星期二
Dry tailings discharge equipment: Efficient Dewatering Hydrocyclone Supplier
Dry tailings discharge equipment: Efficient Dewatering Hydrocyclone Supplier: Jinyang efficient dewatering hydrocyclone is suitable for dewatering of various mineral slurry.jinyang can make different design depend on d...
Efficient Dewatering Hydrocyclone Supplier
Jinyang efficient dewatering hydrocyclone is suitable for dewatering of various mineral slurry.jinyang can make different design depend on different characteristics of the materials.It has the advantages of low pressure,large capacity and high dewatering efficiency.
Jinyang efficient dewatering hydrocyclone applied to the re-election of iron ore tailings dewatering operations,while the density of tailings is 5-12%,particle size,P75% below 74μm,the avarage density of overflow from hydrocyclone could be controled below1.5%,Not only effectively dewatering but also avoid the lost of the useful minerals.In the application of a silica mine dewatering operations,the density of the overflow achieved 0.5%,and the overflow is almost unqulified fine mud,achieved the double effect of dehydration and desliming.The water of cyclone overflow can be reuse after settlement.
Jinyang efficient dewatering hydrocyclone applied to the re-election of iron ore tailings dewatering operations,while the density of tailings is 5-12%,particle size,P75% below 74μm,the avarage density of overflow from hydrocyclone could be controled below1.5%,Not only effectively dewatering but also avoid the lost of the useful minerals.In the application of a silica mine dewatering operations,the density of the overflow achieved 0.5%,and the overflow is almost unqulified fine mud,achieved the double effect of dehydration and desliming.The water of cyclone overflow can be reuse after settlement.
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| Jinyang efficient dewatering hydrocyclone |
2016年6月22日星期三
Power plant flue gas desulphurization hydrocyclone
Power plant flue gas desulphurization hydrocyclone
Currently, Flue Gas Desulfurization(FGD) is the most widely adopted and most mature technology in coal-fired power plants of the world. Generally, a complete set of desulfurization system will use three kinds of hydrocyclones with different roles.
Limestone classification hydrocyclone
As desulfurizer, before the limestone enters into the tower, it needs to pass through the closed-circuit grinding classification . Generally, its fineness -325 mesh content requires more than 90%. The dedicated limestone classification hydrocyclone produced by Jinyang has the characteristics of continuous and stable work condition, fine classification particle size , efficient classification ,wear and corrosion resistance inner and long service life.
Gypsum hydrocyclone
Whether it adopts gypsum, ammonia or calcium-sodium double alkali, the product after desulfurization needs to be concentrated, filtered and then separated continuously from the system. Commonly ,combining the hydrocyclone with the belt filter or centrifuge can get a dry heap of solid productAccording to the distribution of feed particle size , when Jinyang gypsum hydrocyclone processes different desulfurization products, the general design separation size is 20 or less than 20 microns. When the feed concentration is 5-20%,the underflow concentration can reach 40-60%,the overflow concentration can reach 2-5%. It has characteristics of efficient concentration ,high underflow production rate ,wear and corrosion resistance inner and long service life.
Waste water hydrocyclone
Part of the waste water separated from the desulfurization system needs to be concentrated to meet the demand of the follow-up waste water system. When the feed concentration of waste water concentration hydrocyclone produced by Jinyang is 3-5%,the underflow concentration is greater than 12-15% and overflow concentration is of 1-3%.
Currently, Flue Gas Desulfurization(FGD) is the most widely adopted and most mature technology in coal-fired power plants of the world. Generally, a complete set of desulfurization system will use three kinds of hydrocyclones with different roles.
Limestone classification hydrocyclone
As desulfurizer, before the limestone enters into the tower, it needs to pass through the closed-circuit grinding classification . Generally, its fineness -325 mesh content requires more than 90%. The dedicated limestone classification hydrocyclone produced by Jinyang has the characteristics of continuous and stable work condition, fine classification particle size , efficient classification ,wear and corrosion resistance inner and long service life.
Gypsum hydrocyclone
Whether it adopts gypsum, ammonia or calcium-sodium double alkali, the product after desulfurization needs to be concentrated, filtered and then separated continuously from the system. Commonly ,combining the hydrocyclone with the belt filter or centrifuge can get a dry heap of solid productAccording to the distribution of feed particle size , when Jinyang gypsum hydrocyclone processes different desulfurization products, the general design separation size is 20 or less than 20 microns. When the feed concentration is 5-20%,the underflow concentration can reach 40-60%,the overflow concentration can reach 2-5%. It has characteristics of efficient concentration ,high underflow production rate ,wear and corrosion resistance inner and long service life.
Waste water hydrocyclone
Part of the waste water separated from the desulfurization system needs to be concentrated to meet the demand of the follow-up waste water system. When the feed concentration of waste water concentration hydrocyclone produced by Jinyang is 3-5%,the underflow concentration is greater than 12-15% and overflow concentration is of 1-3%.
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| flue gas desulphurization hydrocyclone |
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