CN101586187A - Method for smelting laterite nickel ore by rotary furnace using natural gas as fuel - Google Patents
Method for smelting laterite nickel ore by rotary furnace using natural gas as fuel Download PDFInfo
- Publication number
- CN101586187A CN101586187A CNA2009101192474A CN200910119247A CN101586187A CN 101586187 A CN101586187 A CN 101586187A CN A2009101192474 A CNA2009101192474 A CN A2009101192474A CN 200910119247 A CN200910119247 A CN 200910119247A CN 101586187 A CN101586187 A CN 101586187A
- Authority
- CN
- China
- Prior art keywords
- nickel ore
- natural gas
- fuel
- raw material
- laterite nickel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Manufacture And Refinement Of Metals (AREA)
Abstract
A method for smelting laterite nickel ore by rotary furnace using natural gas as fuel uses natural gas as fuel, uses laterite nickel ore as raw material, and combines the rotary furnace and reducing furnace. The method relates to the main material: laterite nickel ore, the reducing agent: coke or anthracite, and the flux: limestone; wherein, the content of the nickel in the laterite nickel ore raw material is 0.8-3.0%, the laterite nickel ore reducing agent and flux are proportioned by the weight ratio of 100:8-15:8-15. The invention has the advantages of less processes, easy operation,, easy control, high raw material adaptability, low energy consumption, high heat price ratio of natural gas, environmental protection, less pollution, low equipment investment, low production cost and high nickel recovery rate.
Description
Technical field:
It is fuel with Sweet natural gas that the present invention relates to a kind of, is raw material is produced the method smelting of ferronickel with rotary hearth furnace and reduction furnace interlock method with the red soil nickel ore.
Background technology:
For adapting to the needs of socio-economic development and living standards of the people upgrading, improve the metallurgic product structure, develop high-end metallurgic product, realize resource, the energy is energy-conservation to be the only way of following metallurgical industry development with preserving the ecological environment.In view of world's nickel resources shortage, primary nickel storage deficiency has become the high-end Special Alloy Steel class of restriction, such as the development bottleneck of stainless steel-like.
Summary of the invention:
The purpose of this invention is to provide a kind of novel method that with the Sweet natural gas is fuel with rotary hearth furnace smelting red soil nickel ore, it can be fuel with the Sweet natural gas, the method that the utilization rotary hearth furnace is smelted non-ferrous metal, heating value of natural gas height, environmental protection and economy, rotary hearth furnace is new metal smelting method, can reduce energy consumption 1/3, shortens the flow process of technology, simple to operate, be easy to control, and adaptability to raw material is strong, energy consumption is low, environment friendly and pollution-free, facility investment is few, production cost is low, the nickel recovery advantages of higher.In order to solve the existing problem of background technology, the present invention is by the following technical solutions: it is made up of major ingredient red soil nickel ore, reductive agent coke or hard coal, flux Wingdale; The content of nickel is 0.8%-3.0% in the red soil nickel ore raw material, and red soil nickel ore reductive agent and flux are 100 according to part by weight: the proportioning of 8-15: 8-15.
Production technique: choosing red soil nickel ore is raw material, the content of nickel is 0.8-3.0% in the described red soil nickel ore raw material, is 100 with red soil nickel ore reductive agent and flux according to part by weight: the proportioning of 8-15: 8-15, uniform mixing is made ball, through the rotary hearth furnace Sweet natural gas is that fuel adds temperature and is controlled at 900 ℃-1300 ℃, time 15-40min, roasting prereduction, directly enter reduction furnace again, temperature is controlled at 1500 ℃-1650 ℃, carry out retailoring, this melting is continuable, regularly discharges slag and molten metal.Molten metal is a ferronickel.
The present invention has following beneficial effect: reduce the flow process of technology, and simple to operate, be easy to control, adaptability to raw material is strong, and energy consumption is low, environment friendly and pollution-free, facility investment is few, production cost is low, nickel recovery is high.
Description of drawings:
Fig. 1 is the schema of production technique in the embodiment.
Embodiment:
The specific embodiment of the invention adopts technical scheme: it is made up of major ingredient red soil nickel ore, reductive agent coke or hard coal, flux Wingdale; The content of nickel is 0.8%-3.0% in the red soil nickel ore raw material, and red soil nickel ore reductive agent and flux are 100 according to part by weight: the proportioning of 8-15: 8-15; Can reduce the flow process of technology, simple to operate, be easy to control, adaptability to raw material is strong, and energy consumption is low, environment friendly and pollution-free, facility investment is few, production cost is low, nickel recovery is high.
Production technique: choosing red soil nickel ore is raw material, the content of nickel is 0.8-3.0% in the described red soil nickel ore raw material, is 100 with red soil nickel ore reductive agent and flux according to part by weight: the proportioning of 8-15: 8-15, and uniform mixing is made ball, be controlled at 900 ℃-1300 ℃ through the rotary hearth furnace temperature, time 15-40min, roasting prereduction directly enters reduction furnace again, temperature is controlled at 1500 ℃-1650 ℃, carry out retailoring, this melting is continuable, regularly discharges slag and molten metal.Molten metal is a ferronickel.Specific embodiment is referring to Fig. 1.
Claims (1)
1, a kind of novel method that with the Sweet natural gas is fuel with rotary hearth furnace smelting red soil nickel ore, it is made up of major ingredient red soil nickel ore, reductive agent coke or hard coal, flux Wingdale; The content of nickel is 0.8%-3.0% in the red soil nickel ore raw material, and red soil nickel ore reductive agent and flux are 100 according to part by weight: the proportioning of 8-15: 8-15.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009101192474A CN101586187A (en) | 2009-03-10 | 2009-03-10 | Method for smelting laterite nickel ore by rotary furnace using natural gas as fuel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009101192474A CN101586187A (en) | 2009-03-10 | 2009-03-10 | Method for smelting laterite nickel ore by rotary furnace using natural gas as fuel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101586187A true CN101586187A (en) | 2009-11-25 |
Family
ID=41370613
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2009101192474A Pending CN101586187A (en) | 2009-03-10 | 2009-03-10 | Method for smelting laterite nickel ore by rotary furnace using natural gas as fuel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101586187A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102212636A (en) * | 2011-05-26 | 2011-10-12 | 吴道洪 | Iron-making method by performing coal-based direct reduction in rotary hearth furnace and melting in gas melting furnace on lateritic-nickel ore |
| WO2013152487A1 (en) * | 2012-04-09 | 2013-10-17 | 北京神雾环境能源科技集团股份有限公司 | Laterite-nickel ore processing method for efficiently recovering nickel resources |
| CN104726711A (en) * | 2014-06-03 | 2015-06-24 | 山东炜烨节能新材料有限公司 | Technique for coproducing nickel pig iron and rock wool product from lateritic nickel ores |
| CN106148798A (en) * | 2015-03-23 | 2016-11-23 | 江苏锦明不锈钢新材料有限公司 | A kind of stainless preparation technology |
-
2009
- 2009-03-10 CN CNA2009101192474A patent/CN101586187A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102212636A (en) * | 2011-05-26 | 2011-10-12 | 吴道洪 | Iron-making method by performing coal-based direct reduction in rotary hearth furnace and melting in gas melting furnace on lateritic-nickel ore |
| WO2013152487A1 (en) * | 2012-04-09 | 2013-10-17 | 北京神雾环境能源科技集团股份有限公司 | Laterite-nickel ore processing method for efficiently recovering nickel resources |
| GB2515196A (en) * | 2012-04-09 | 2014-12-17 | Beijing Shenwu Environment And Energy Technology Corp | Laterite-nickel ore processing method for efficiently recovering nickel resources |
| CN104726711A (en) * | 2014-06-03 | 2015-06-24 | 山东炜烨节能新材料有限公司 | Technique for coproducing nickel pig iron and rock wool product from lateritic nickel ores |
| CN106148798A (en) * | 2015-03-23 | 2016-11-23 | 江苏锦明不锈钢新材料有限公司 | A kind of stainless preparation technology |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100469912C (en) | Process for preparing nickel ferroalloy by melting and reducing laterite nickel ore | |
| AU2005299184B2 (en) | A smelting process of ferronickel with nickel oxide ore containing of crystal water in a blast furnace | |
| CN101413055B (en) | Process for directly preparing nickel-iron alloy powder from laterite-nickel ore | |
| AU2005304190B2 (en) | A smelting process of ferronickel with nickel oxide ore free of crystal water in a blast furnace | |
| CN101748298B (en) | Method for treating laterite nickel ore and producing ferronickel by combining tunnel kiln prereduction and melting furnace final reduction | |
| WO2008131614A1 (en) | A SMELTING METHOD OF LOW-P STAINLESS STEEL BASE USING LOW-GRADE IRONSTONE CONTAINING Ni AND Cr | |
| CN104195279B (en) | A kind of red soil nickel ore prepares the technique of ferronickel | |
| CN103589939B (en) | A kind of method of red soil nickel ore melting, reducing and smelting Rhometal | |
| CN103436766B (en) | A kind of preparation method of nickel-chrome alloy steel | |
| CN101082067A (en) | Comprehensive utilization technique for low-grade laterite nickel ore | |
| CN101037713A (en) | Method for directly reducing ferronickel by tunnel kiln using laterite-nickel ore as raw material | |
| CN106591600A (en) | Method for preparing high-titanium slag through low-temperature gas-based reduction titanium-containing iron mineral powder | |
| CN102094093A (en) | Method for producing ferronickel alloy grain by directly reducing lateritic nickel ore by rotary kiln | |
| CN104313229B (en) | The method producing high ferrophosphorus with shaft kiln directly reduced high phosphorus ore | |
| CN104498667A (en) | Slagging method of sintering return mines of continuous steelmaking electric furnace | |
| CN102134656B (en) | Method for fluidized drying and synchronous pre-reduction of laterite-nickel ore | |
| CN101586187A (en) | Method for smelting laterite nickel ore by rotary furnace using natural gas as fuel | |
| CN103757165B (en) | A kind of high-iron bauxite blast-furnace smelting has valency constituent element method of comprehensive utilization | |
| CN104878154B (en) | The method of nickel minerals direct Reducing and Alloying in converter | |
| CN103866078B (en) | A point method for comprehensive utilization is melted in the prereduction of a kind of high-iron bauxite shaft furnace | |
| CN107881282A (en) | A kind of phosphorus-containing iron ore prereduction synchronization dephosphorization direct ironmaking technique | |
| CN105695773B (en) | A kind of molten point of method for producing dilval of the step of natural gas two reduction lateritic nickel ore electric furnace | |
| CN202912997U (en) | Intermediate frequency furnace for producing direct-reduced iron | |
| CN102719582B (en) | Process for smelting low-quality complex ore | |
| Lu et al. | New method to produce FeNi nuggets from low grade ore by semi-molten reduction |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20091125 |