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Method for Industrialized Production of Ferrosilicon Alloy by Carbon Reduction from Senustin Mixed Ore

A technology for ferrosilicon alloy and ferrosilicon, which is applied in the field of industrialized production of ferrosilicon alloy from carbon reduction in ferrosilicon mixed ore, can solve the problem of obtaining qualified iron concentrate and ilmenite concentrate, there is no good way to deal with it, and it is difficult to beneficiation means and other problems, to achieve the effect of high comprehensive recycling rate, significant social and economic benefits, and no environmental pollution

Inactive Publication Date: 2011-12-21
陕西延长石油中陕金属矿业有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Generally speaking, raw ore (gross ore) dressing and smelting can be roughly divided into two types. One is to obtain qualified iron concentrate and titanium concentrate that can be further processed in industry through ore dressing. Iron concentrate can be obtained through a certain amount of rich iron ore. Blast furnace smelting to obtain pig iron; titanium concentrate can be smelted through carbothermal reduction to obtain high-titanium slag, which can be further processed; another kind of raw ore (gross ore) with low grade and difficult to separate and smelt, it is difficult to obtain qualified raw ore through mineral processing. Iron concentrate and titanium concentrate, so far there is no good way to deal with

Method used

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  • Method for Industrialized Production of Ferrosilicon Alloy by Carbon Reduction from Senustin Mixed Ore
  • Method for Industrialized Production of Ferrosilicon Alloy by Carbon Reduction from Senustin Mixed Ore
  • Method for Industrialized Production of Ferrosilicon Alloy by Carbon Reduction from Senustin Mixed Ore

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] Step 1: Preparation of AlSiFe mixed powder

[0049] The sendust mixed ore is crushed mechanically (XMQ-240×90 ball mill) to obtain a sendust mixed powder with a particle size of 280 mesh;

[0050] In the present invention, the main component (mass percentage) of sendustite: aluminum oxide (Al 2 o 3 )19.02%, silicon dioxide (SiO 2 ) 43.21%, total iron (TFe) 10.6%, titanium dioxide (TiO 2 ) 1.82%.

[0051] Step 2: Making Bituminous Coal Powder

[0052] The bituminous coal is crushed mechanically (XMQ-240×90 ball mill) to obtain bituminous coal powder with a particle size of 100 mesh. The main components are: ash 12.64%, volatile matter 20.92%, moisture 3.70%, and fixed carbon 62.74%. The chemical composition of the ash is: 19.52% aluminum oxide, 49.84% silicon dioxide, 6.52% iron oxide, and 11.72% calcium oxide.

[0053] Step 3: Flash Suspension Reduction and Melting

[0054] (A) sendust mixed powder is packed in wherein one spray gun container, regulates this spra...

Embodiment 2

[0062] Step 1: Preparation of AlSiFe mixed powder

[0063] The sendust mixed ore is mechanically crushed to obtain a sendust mixed powder with a particle size of 200 mesh;

[0064] In the present invention, the main component of sendust: aluminum oxide (Al 2 o 3 )19.02%, silicon dioxide (SiO 2 ) 43.21%, total iron (TFe) 10.6%, titanium dioxide (TiO 2 ) 1.82%.

[0065] Step 2: Making Bituminous Coal Powder

[0066] The bituminous coal is mechanically crushed to obtain bituminous coal powder with a particle size of 80 meshes. The main components are: 12.64% ash, 20.92% volatile matter, 3.70% moisture, and 62.74% fixed carbon. The chemical composition of the ash is: 19.52% aluminum oxide, 49.84% silicon dioxide, 6.52% iron oxide, and 11.72% calcium oxide.

[0067] Step 3: Flash Suspension Reduction and Melting

[0068] (A) the sendust mixed powder is packed in one of the spray gun containers, the spray gun pressure is adjusted under 3MPa, the sendust mixed powder is inject...

Embodiment 3

[0076] Step 1: Preparation of AlSiFe mixed powder

[0077] The sendust mixed ore is crushed by mechanical crushing to obtain the sendust mixed powder with a particle size of 400 mesh;

[0078] In the present invention, the main component of sendust: aluminum oxide (Al 2 o 3 )19.02%, silicon dioxide (SiO 2 ) 43.21%, total iron (TFe) 10.6%, titanium dioxide (TiO 2 ) 1.82%.

[0079] Step 2: Making Bituminous Coal Powder

[0080] The bituminous coal is mechanically crushed to obtain bituminous coal powder with a particle size of 120 meshes. The main components are: 12.64% ash, 20.92% volatile matter, 3.70% moisture, and 62.74% fixed carbon. The chemical composition of the ash is: 19.52% aluminum oxide, 49.84% silicon dioxide, 6.52% iron oxide, and 11.72% calcium oxide.

[0081] Step 3: Flash Suspension Reduction and Melting

[0082] (A) sendust mixed powder is packed in wherein one spray gun container, regulates this spray gun pressure under 3MPa, makes sendust mixed powder...

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Abstract

The invention discloses a method for producing ferrosilicon alloy by carbon reduction from aluminum-silicon-iron mixed ore. The method utilizes the continuous supply of powdery raw materials and the continuous supply of reducing gas to reduce the need for multiple equipment to cooperate in industrial production. To complete the production, while reducing production costs. The present invention adopts the combination of pulverizer and flash suspension furnace on production equipment, and the whole processing time from raw material entering to ferrosilicon alloy production is 20 minutes to 40 minutes, which improves production efficiency and recovery rate.

Description

technical field [0001] The present invention relates to a method for separating minerals, more particularly, a method for producing ferrosilicon alloy by carbon reduction from sendust ore. Background technique [0002] The feasibility of dressing and smelting of raw ore (gross ore) in different origins is not the same. Generally speaking, raw ore (gross ore) dressing and smelting can be roughly divided into two types. One is to obtain qualified iron concentrate and titanium concentrate that can be further processed in industry through ore dressing. Iron concentrate can be obtained through a certain amount of rich iron ore. Blast furnace smelting to obtain pig iron; titanium concentrate can be smelted through carbothermal reduction to obtain high-titanium slag, which can be further processed; another kind of raw ore (gross ore) with low grade and difficult to separate and smelt, it is difficult to obtain qualified raw ore through mineral processing. Iron concentrate and tita...

Claims

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Application Information

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IPC IPC(8): C22B5/10
Inventor 卢惠民
Owner 陕西延长石油中陕金属矿业有限公司
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