CN101910427B - A method of agglomeration of ferroalloy fines such as ferromanganese, ferrochrome and ferrosilicon fines - Google Patents
A method of agglomeration of ferroalloy fines such as ferromanganese, ferrochrome and ferrosilicon fines Download PDFInfo
- Publication number
- CN101910427B CN101910427B CN2009801017007A CN200980101700A CN101910427B CN 101910427 B CN101910427 B CN 101910427B CN 2009801017007 A CN2009801017007 A CN 2009801017007A CN 200980101700 A CN200980101700 A CN 200980101700A CN 101910427 B CN101910427 B CN 101910427B
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- China
- Prior art keywords
- fines
- agglomeration
- ferroalloy
- resol
- aggregate
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- 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.)
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B1/00—Preliminary treatment of ores or scrap
- C22B1/14—Agglomerating; Briquetting; Binding; Granulating
- C22B1/24—Binding; Briquetting ; Granulating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/14—Treatment of metallic powder
- B22F1/148—Agglomerating
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B1/00—Preliminary treatment of ores or scrap
- C22B1/14—Agglomerating; Briquetting; Binding; Granulating
- C22B1/24—Binding; Briquetting ; Granulating
- C22B1/242—Binding; Briquetting ; Granulating with binders
- C22B1/244—Binding; Briquetting ; Granulating with binders organic
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B1/00—Preliminary treatment of ores or scrap
- C22B1/14—Agglomerating; Briquetting; Binding; Granulating
- C22B1/24—Binding; Briquetting ; Granulating
- C22B1/248—Binding; Briquetting ; Granulating of metal scrap or alloys
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
A method of agglomeration of ferroalloy fines such as ferromanganese, ferrochrome and ferrosilicon fines comprising the steps of: Providing ferroalloy fines below 10mm size; Sieving <3mm size fraction and crushing 3-10mm to produce <3mm fines; mixing the resulted fines with a phenol formaldehyde resol resin binder in a vessel; compacting the mixed fines in a compressive machine in batches to form agglomerates; curing the agglomerates on heating in a furnace maintained at a temperature range 150-200 DEG C for about 60 to 90 minutes.
Description
Technical field
The present invention relates to reunion (agglomeration) method of ferroalloy fines such as ferromanganese, ferrosilicon, silicomanganese and ferrochrome powder.More particularly, the present invention relates to the method for agglomeration of ferromanganese powder, this ferromanganese powder is from the ferromanganese agglomerate of screening.
Background technology
In order in open hearth furnace, to produce the steel of better quality, must in furnace charge, molten bath, ladle and mold, add silicon, chromium, phosphorus etc. with the form of iron alloy, said iron alloy account for charging capacity from few to 5% to as many as 85%.Important iron alloy product is ferrosilicon, high carbon ferromanganese and ferrochrome, silicomanganese and the calcium silicide that in electric furnace, prepares usually.Yet, can use the ore or the concentrate of siliceous, manganese or chromium in blast furnace, to produce low-grade iron alloy more at an easy rate.Produce such iron alloy with the agglomerate form.Usually iron alloy agglomerate such as ferromanganese, ferrosilicon or ferrochrome are crushed to the block of 10-150mm size.The ferroalloy fines of block generation＜10mm size through the crushing different size.Therefore, it is relatively inexpensive so to produce ferroalloy fines.
Knowing in the art through nodularization, stacking or briquetting and agglomerating route reunites ore and concentrate.But, do not obtain exploitation yet in the reunion of this technical field ferroalloy fines.
Goal of the invention
Therefore, the objective of the invention is to propose a kind of ferroalloy fines particularly the method for agglomeration of ferromanganese, ferrochrome and ferrosilicon fines to produce cheap iron alloy.
Another object of the present invention be through powder collection (expropriate) screening, powder is mixed with particular adhesive and suppresses from ferroalloy fines and develop aggregate.
Further purpose of the present invention is the particular adhesive that is used to reunite through experiment evolution (evolution) selection, and this sticker has the material behavior that is different from conventional water glass or bentonite adhesive.
Summary of the invention
Embodiment through the Fe-Mn powder is reunited is set forth the present invention who is proposed, yet, adopting to keep about ferromanganese powder reunite the same procedure step and the condition of disclosed method, the present invention is also applicable to reunion Fe-Si and Fe-Cr powder.
Can obtain the sticker of the various breezes that are used to reunite from the market.The character of ferromanganese powder (0-3mm) is different from the character of iron ore and conventional sticker (water glass, wilkinite) very much, and known method can not be produced the iron alloy aggregate with proper operation performance (rotary drum coefficient, compression and tensile strength) that is used for the plant size operation.According to the present invention, select the sticker of resol, to produce the aggregate that obtains desirable strength through particular experiment as ferromanganese powder (0-3mm).
The sticker of having tested the Different Weight ratio of 2-10% is used for the ferromanganese powder, and finds that the binder content of 3-5% is the optimum content that obtains desired properties with minimum cost.
Therefore, a kind of method of agglomeration of ferroalloy fines is provided, has comprised step: the iron alloy agglomerate has been crushed to the 3mm size; Sticker at least with desirable strength such as resol (resol) that mixing is selected through the characterization assessment of aggregate according to rotary drum coefficient, compression and tensile strength; Pressing mixt on the press that has 5 tons of load bearing capacities at least; In remaining in 150-200 ℃ stove, solidify pressed compact and continue 60-90 minute time.
Brief Description Of Drawings
To understand the present invention better according to accompanying drawing, wherein Fig. 1 relates to the processing flow chart of producing the ferromanganese aggregate with desirable strength.
Detailed Description Of The Invention
As shown in Figure 1, the agglomeration step of ferroalloy fines is following:
A. sieve and the oversized dimensions of crushing (＞3mm) particle: in ferroalloy industry, in the process of the ferromanganese agglomerate of screening casting, the material that is lower than 10mm of generation is called atomizing.The powder of＜3mm can directly be reunited, but＞powder of 3mm can not reunite through conventional method of agglomeration suitably, and need crushing to be reduced to＜scope of 3mm size.
B. sticker mixes: the sticker in wt% mixes with powder to obtain the suitable distribution of sticker in material.The sticker performance is as shown in table 1.
Table 1: sticker performance
| Resin | Performance |
| Resol (resol) | PH value (1% solution): 7.15 proportions: 1.18 solids contents: 45-70.65% is 25 ℃ viscosity: 200cps.Min. carbon: 38% |
C. compacting: the mixing material of 60-80 gram is remained in the mould that diameter is 3cm, use press compacting, the aggregate of preparation is taken off and stores be used for further processing up to 5 tons of load.
The green strength of aggregate is highly to fall from 500cm for 7 times.Aggregate is cylindrical briquet, and diameter is 3cm, and length is 2.0cm.
D. solidify: the aggregate of preparation was solidified 60-90 minute at 150 ℃-200 ℃.Then this product is stored, and this product can be used for substituting the ferromanganese block.
E. experiment: the processing property of reunion material plays an important role to the running of plant size, and does not hope to produce powder.With the compressive strength of UTM machine test aggregate, and its performance is listed in the table below 2.
Table 2 reunion performance
| Sample | Aggregate |
| Dimensions | Cylinder 3cm * 2.0 |
| (the basal plane area of aggregate is with rice for area 2Meter) | 0.0007065 |
| (volume of aggregate is with rice for volume 3Meter) | 0.000014 |
| Weight (kg) | 0.073 |
| Volume density (kg/M 3) | 5208.775655 |
| Failure load (newton) | 39000 |
| Compressive strength (MPa) | 55 |
| The rotary drum coefficient | 94％ |
| Coefficient of wear | 3％ |
| Fall index | 98％ |
The comparative test result of the strength characteristic of ferromanganese aggregate prepared in accordance with the present invention and known ferromanganese block is listed in table 3.
Table 3
| Performance | Intensity | Volume density | Processing property |
| Aggregate | 55-70MPa | 5208-5210 | T.I：94％ A.I：3％ |
| The FeMn block | 50-85MPa | 6527-7185 |
Advantage of the present invention
Aggregate prepared in accordance with the present invention can be used for substituting the ferromanganese block.The physicals of aggregate equals to the ferromanganese block that is purchased.These aggregates can be used for the processing like refining steel in the ladle container.The volume density of having found aggregate is 5208-5210kg/m
3, and it does not float on the slag, in metal sedimentation suitable, and demonstrate dissolution characteristics preferably.The compressive strength of material and rotary drum coefficient (TI) are suitable for transportation route and do not produce too much powder.
In the scope and border of accompanying claims definition, because be feasible, so the present invention who addresses should not understand with ways to restrain here to various adjustings, modification and the change of treatment step and treatment condition.
Claims (10)
1. the method for agglomeration of a ferroalloy fines comprises step:
The ferroalloy fines that is lower than the 10mm size is provided;
Screening＜3mm size partly and with 3-10mm is crushed with the powder of preparation＜3mm;
In container, mix powder and the phenolic resin adhesive that obtains;
On press in batches the compacting mixed powder to form aggregate;
Solidify through 60-90 minute diplomatic corps's polymers of heating in remaining in 150-200 ℃ stove, wherein the ratio of mixture of resol and powder is 2-10%: 1, by weight.
2. the method for agglomeration of ferroalloy fines as claimed in claim 1, wherein resol is resol.
3. the method for agglomeration of ferroalloy fines as claimed in claim 1, wherein ferroalloy fines is selected from ferromanganese, ferrochrome and ferrosilicon fines.
4. the method for agglomeration of ferroalloy fines as claimed in claim 1; Wherein select to have: proportion 1.18 as the resol of sticker; Solids content 70.65%; At 25 ℃ is minimal viscosity and the carbon 38% of 200cps., and wherein resol has 7.15 pH value under the situation of 1% solution.
5. the method for agglomeration of ferroalloy fines as claimed in claim 4, wherein resol is resol.
6. like the method for agglomeration of each described ferroalloy fines among the claim 1-5, wherein sticker is mixed with ferroalloy fines with the ratio of 3-5wt%.
7. the method for agglomeration of ferroalloy fines as claimed in claim 1, wherein the compacting mixed powder is the aggregate that highly falls from 500cm for 7 times to obtain green strength in press.
8. the method for agglomeration of ferroalloy fines as claimed in claim 1, wherein the solidified aggregate has the cylindrical size of 3cm diameter and 2cm height, area 0.0007065m
2, volume 0.000014m
3, weight 0.073 gram, volume density 5208-5210kg/m
3, failure load 39,000 newton, compressive strength 55MPa, rotary drum coefficient 94%, coefficient of wear 3%.
9. like the method for agglomeration of each described ferroalloy fines among claim 1-5 and the 7-8, wherein aggregate has the compressive strength of 55-70MPa, 5208-5210kg/m
3Volume density.
10. the method for agglomeration of ferroalloy fines as claimed in claim 6, wherein aggregate has the compressive strength of 55-70MPa, 5208-5210kg/m
3Volume density.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IN1685/KOL/08 | 2008-09-29 | ||
| IN1685KO2008 | 2008-09-29 | ||
| PCT/IN2009/000532 WO2010035289A1 (en) | 2008-09-29 | 2009-09-29 | A method of agglomeration of ferroalloy fines such as ferromanganese, ferrochrome and ferrosilicon fines |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101910427A CN101910427A (en) | 2010-12-08 |
| CN101910427B true CN101910427B (en) | 2012-11-07 |
Family
ID=42059322
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009801017007A Expired - Fee Related CN101910427B (en) | 2008-09-29 | 2009-09-29 | A method of agglomeration of ferroalloy fines such as ferromanganese, ferrochrome and ferrosilicon fines |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP2329050A4 (en) |
| JP (1) | JP2012504189A (en) |
| CN (1) | CN101910427B (en) |
| WO (1) | WO2010035289A1 (en) |
| ZA (1) | ZA201004347B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102266941A (en) * | 2011-08-09 | 2011-12-07 | 吴庆定 | High-efficiency and energy-saving low-carbon manganese ball production process |
| CN102296236B (en) * | 2011-08-12 | 2012-12-05 | 河曲县万联节能材料有限公司 | Wear resistant steel ball and segment specially used in mines |
| CN103042210B (en) * | 2012-12-24 | 2015-06-03 | 秀山天雄锰业科技有限公司 | Preparation method of high-pressure manganese balls |
| FI126719B (en) | 2013-12-17 | 2017-04-28 | Outotec Finland Oy | Process for making manganese-containing iron alloy |
| GB201613915D0 (en) * | 2016-08-15 | 2016-09-28 | Binding Solutions Ltd | Briquettes |
| CN111996369A (en) * | 2020-08-28 | 2020-11-27 | 江苏江南铁合金有限公司 | Ferrochromium powder ball for steelmaking and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3898076A (en) * | 1972-10-19 | 1975-08-05 | Robert L Ranke | Sealing and briquetting finely divided material with vinyl copolymer and wax |
| US4497661A (en) * | 1981-08-11 | 1985-02-05 | Ohio & Pennsylvania Fuels Co, Ltd. | Formed briquettes, process for forming the same and process for utilizing the same in the manufacture of metals |
| US5302341A (en) * | 1992-10-29 | 1994-04-12 | Palsat International, Inc. | Continuous method for formation of briquettes contains less than 1% binder by weight of the briquette |
| CN1402799A (en) * | 1999-12-02 | 2003-03-12 | 奥托库姆普联合股份公司 | Method for sintering ferroalloy materials |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1461428A (en) * | 1974-11-20 | 1977-01-13 | Magnesium Elektron Ltd | Addition of magnesium to molten metal |
| DE2638117B1 (en) * | 1976-08-25 | 1977-10-20 | Lung Bernhard Dr | PROCESS FOR PROCESSING FINE MATERIALS CONTAINING SIC AND / OR FESI |
| JPH04236702A (en) * | 1991-01-19 | 1992-08-25 | Astecirie Corp Ltd | Manufacture of metallic compact body using refined iron powder of converter dust |
| JPH06240372A (en) * | 1993-02-22 | 1994-08-30 | Saburo Maruseko | Pellet for iron making raw material and its production |
| ZA200204091B (en) * | 2001-05-24 | 2003-01-23 | Mintek | Agglomeration of ferro-alloy fines. |
| RU2202633C1 (en) * | 2002-03-18 | 2003-04-20 | Общество с ограниченной ответственностью Совместное Российско-Американское предприятие "Технология ХХI века" | Mixture to produce carbon-carrying briquettes |
| JP2007270260A (en) * | 2006-03-31 | 2007-10-18 | Jfe Steel Kk | Unbaked agglomerated ore for iron manufacture |
-
2009
- 2009-09-29 WO PCT/IN2009/000532 patent/WO2010035289A1/en active Application Filing
- 2009-09-29 JP JP2011528497A patent/JP2012504189A/en active Pending
- 2009-09-29 EP EP09815780.3A patent/EP2329050A4/en not_active Withdrawn
- 2009-09-29 CN CN2009801017007A patent/CN101910427B/en not_active Expired - Fee Related
-
2010
- 2010-06-21 ZA ZA2010/04347A patent/ZA201004347B/en unknown
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3898076A (en) * | 1972-10-19 | 1975-08-05 | Robert L Ranke | Sealing and briquetting finely divided material with vinyl copolymer and wax |
| US4497661A (en) * | 1981-08-11 | 1985-02-05 | Ohio & Pennsylvania Fuels Co, Ltd. | Formed briquettes, process for forming the same and process for utilizing the same in the manufacture of metals |
| US5302341A (en) * | 1992-10-29 | 1994-04-12 | Palsat International, Inc. | Continuous method for formation of briquettes contains less than 1% binder by weight of the briquette |
| CN1402799A (en) * | 1999-12-02 | 2003-03-12 | 奥托库姆普联合股份公司 | Method for sintering ferroalloy materials |
Also Published As
| Publication number | Publication date |
|---|---|
| ZA201004347B (en) | 2011-06-29 |
| CN101910427A (en) | 2010-12-08 |
| EP2329050A4 (en) | 2016-05-25 |
| JP2012504189A (en) | 2012-02-16 |
| WO2010035289A1 (en) | 2010-04-01 |
| EP2329050A1 (en) | 2011-06-08 |
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Granted publication date: 20121107 Termination date: 20210929 |