CN1789444A - Method for manufacturing high-alkalinity vanadium titano-sintered ore - Google Patents
Method for manufacturing high-alkalinity vanadium titano-sintered ore Download PDFInfo
- Publication number
- CN1789444A CN1789444A CN 200510132607 CN200510132607A CN1789444A CN 1789444 A CN1789444 A CN 1789444A CN 200510132607 CN200510132607 CN 200510132607 CN 200510132607 A CN200510132607 A CN 200510132607A CN 1789444 A CN1789444 A CN 1789444A
- Authority
- CN
- China
- Prior art keywords
- sintered ore
- powder
- alkalinity
- vanadium
- manufacturing high
- 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
Abstract
The invention relates sintering method used for ferro-vanadium magnetic-iron concentrate powder, especially for ferro-vanadium overbasic sintered ore. The method comprises 30-65wt% magnetic selection ferro-vanadium concentrate powder, 5-15wt% high-magnesian powder, 4-12wt% calcium oxide, 3.5-8wt% pulverized coke, 20wt%-35wt% return ore, 1.9-2.1 alkalinity base number of sintered ore. The method uses the ferro-vanadium concentrate powder as main material (1.9-2.1 alkalinity). The sintered ore made by the said method and ferro-vanadium pellet ore (0.15-0.4 alkalinity) are good materials for high furnace smelting.
Description
Affiliated technical field:
The present invention relates to a kind of production method of the dressing of v-ti magnetite concentrate powder sintering method, particularly high-alkalinity vanadium titano-sintered ore.
Background technology:
At present, produce the basicity (Cao/SiO of vanadic titanium type agglomerate
2) being controlled between the 1.0-1.8 of having, what have is controlled between the 1.1-1.3, and what have is controlled between the 1.4-1.7, and the vanadium titanium agglomerate of this basicity fluctuation range has the following disadvantages.1. sinter machine production utilization coefficient is lower; 2. the fluctuation of basicity scope is bigger, causes fluctuation at blast furnace burden adjustment ore deposit, ball ratio; 3. be between the 1.2-1.4 among the self-fluxed sinter state.4. as and acidic pellet ore collocation use the poorlyest as effect between the blast-furnace smelting furnace charge 1.2-1.4, agglomerate is in rapid process of cooling, liquid phase has little time crystallization, intensity degenerates, and causes the efflorescence of agglomerate nature, is an impediment to reinforcing blast furnace and smelts.
Summary of the invention:
The object of the invention provides a kind of method for manufacturing high-alkalinity vanadium titano-sintered ore, for blast-furnace smelting provides the high-quality furnace charge of going into, improves the capacity factor of a blast furnace, reduces coke ratio, solves the problems referred to above that background technology exists.
Technical scheme of the present invention:
The proportioning raw materials of agglomerate: weight percent, magnetic separation vanadium ilmenite concentrate powder 30-65%, high magnesium ash 5-15%, unslaked lime 4-12%, coke powder 3.5-8% returns mine 20%～35%, according to concrete material condition, control sinter basicity radix is 1.9-2.1, determines the ratio of each component.
The main raw material magnetic separation vanadium ilmenite concentrate powder of agglomerate is the smart powder be combined into of V-Ti-Fe concentrate fines and common iron, can adopt following ratio proportioning by weight percentage, V-Ti-Fe concentrate fines: 60-85%, the smart powder 15-40% of common iron.
Returning mine is the agglomerate screen underflow.The manufacture method of agglomerate also comprise conventional raw material put in storage get the raw materials ready, operations such as charge calculation, mixing, igniting sintering, fragmentation, cooling.
The principal feature of manufacture method is to contain V-Ti-Fe concentrate fines 60-85% in the iron charge of main raw material, the smart powder 15-40% of common iron, can adopt the smart powder of 100% vanadium titanium magnetic separation iron before producing, with addition of the time according to the basicity requirement, iron smart powder, high magnesium ash, lime, return mine and coke powder carries out charge calculation, (the various compositions of ingredient requirement are relatively stable), the down draft sintering method is made agglomerate, goes into stove with vanadic titanium type pellet (basicity 0.15-0.4) and smelts.
Adopt the present invention, with vanadium ilmenite concentrate powder is that main raw material (1.9-2.1 that the basicity fluctuation range is less) is made agglomerate, agglomerate and vanadic titanium type pellet (basicity the is 0.15-0.4) collocation of adopting this method to make use stove, for blast-furnace smelting provides the furnace charge of going into of good specification of quality, have that the capacity factor of a blast furnace improves, degradation characteristics under the coke ratio.
Embodiment:
By the following examples, the invention will be further described.
Technical process of the present invention is:
Raw material put in storage get the raw materials ready → charge calculation (determining ratio) → mixed once material → rerolling (spherolite degree and material temperature are made in raising) → cloth (evenly) → igniting sintering (exhausting control ignition temperature) → fragmentation (utilization of returning mine) → heat sieves (finished product ore deposit with return separate) → cooling → blast-furnace smelting.
Agglomerate batching proportioning is: V-Ti-Fe concentrate fines 30-65%, and high magnesium ash 5-15%, unslaked lime 4-12%, coke powder 3.5-8% returns mine 20～35%, calculates proportion scale, (requirement of sintering composition) according to various compositions.
The main raw material magnetic separation vanadium ilmenite concentrate powder of agglomerate is the smart powder be combined into of V-Ti-Fe concentrate fines and common iron, can adopt following ratio proportioning by weight percentage, V-Ti-Fe concentrate fines: 60-85%, the smart powder 15-40% of common iron.
The smart powder degree-200 of V-Ti-Fe concentrate fines and common iron order accounts for 65-90%, and high magnesium ash granularity＜3mm accounts for more than 80%, and unslaked lime granularity＜3mm accounts for more than 85%, and the granularity＜6mm that returns mine accounts for more than 80%, and coke fines size 0.5 ~ 3mm accounts for more than 85%.Ignition temperature is 1070～1258 ℃, and terminal temperature is 132～160 ℃, and the sintering negative pressure is 8～10Kpa, and bed thickness is 470mm.
Raw materials quality requires:
| Kind | Mass range | Remarks | ||||||||
| TFe％ | Sio％ | S％ | P％ | C is solid | A | Cao％ | Mgo％ | Granularity % | ||
| The smart powder of iron | ≥ 65.5 | ≤6.6 | -200 order 65-90 | |||||||
| Return mine | ≥52 | ≤6 | ≤ 10.5 | ≤4 | ＜6mm ＞80 | The agglomerate screen underflow | ||||
| High magnesium ash | ≤3.0 | ＜0.15 | ＜0.03 | ≥80 | ＞29 | ＜3mm ＞80 | ||||
| Lime | ≤5.5 | ≥72 | ≤5 | ＜3mm ＞85 | ||||||
| Coke powder | ≤0.8 | ≥ 78 | ≤ 16 | 0.5-3mm ＞85 |
Adopt the inventive method, prepared three batches of vanadic titanium type high basicity sinters, concrete parameter is the table 1-table 4 of face as follows.
Table 1, raw material granularity (mm%)
(%) is as follows for table 2, feed proportioning ratio:
Table 3, various processing parameter and technical indicator
Table 4, embodiment blast-furnace smelting main economic and technical indices
Claims (6)
1, a kind of method for manufacturing high-alkalinity vanadium titano-sintered ore, the proportioning raw materials that it is characterized in that agglomerate: weight percent, magnetic separation vanadium ilmenite concentrate powder 30-65%, high magnesium ash 5-15%, unslaked lime 4-12%, coke powder 3.5-8%, return mine 20%～35%, according to concrete material condition, control sinter basicity radix is 1.9-2.1, determines the ratio of each component.
2, the method for manufacturing high-alkalinity vanadium titano-sintered ore according to claim 1 is characterized in that magnetic separation vanadium ilmenite concentrate powder is the smart powder be combined into of V-Ti-Fe concentrate fines and common iron, by weight percentage, and V-Ti-Fe concentrate fines: 60-85%, the smart powder 15-40% of common iron.
3, the method for manufacturing high-alkalinity vanadium titano-sintered ore according to claim 2, it is characterized in that the smart powder degree-200 of V-Ti-Fe concentrate fines and common iron order accounts for 6590%, high magnesium ash granularity＜3mm accounts for more than 80%, unslaked lime granularity＜3mm accounts for more than 85%, granularity＜the 6mm that returns mine accounts for more than 80%, and coke fines size 0.5 ~ 3mm accounts for more than 85%.
4,, it is characterized in that also comprising batch mixes, igniting sintering, refrigerating work procedure according to claim 1 or 2 described method for manufacturing high-alkalinity vanadium titano-sintered ore.
5, the method for manufacturing high-alkalinity vanadium titano-sintered ore according to claim 4 is characterized in that ignition temperature is 1070～1258 ℃, and terminal temperature is 132～160 ℃, and the sintering negative pressure is 8～10Kpa, and bed thickness is 470mm.
6, according to claim 1 or 2 described method for manufacturing high-alkalinity vanadium titano-sintered ore, can adopt the smart powder of 100% vanadium titanium magnetic separation iron before it is characterized in that producing, with addition of the time according to the basicity requirement, iron smart powder, high magnesium ash, lime, return mine and coke powder carries out charge calculation, the various compositions of ingredient requirement are relatively stable, make agglomerate with the down draft sintering method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510132607 CN1789444A (en) | 2005-12-27 | 2005-12-27 | Method for manufacturing high-alkalinity vanadium titano-sintered ore |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510132607 CN1789444A (en) | 2005-12-27 | 2005-12-27 | Method for manufacturing high-alkalinity vanadium titano-sintered ore |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1789444A true CN1789444A (en) | 2006-06-21 |
Family
ID=36787566
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510132607 Pending CN1789444A (en) | 2005-12-27 | 2005-12-27 | Method for manufacturing high-alkalinity vanadium titano-sintered ore |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1789444A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100596310C (en) * | 2008-08-27 | 2010-03-31 | 攀枝花新钢钒股份有限公司 | High titan type high alkalinity sinter and method for preparing same |
| CN102206718A (en) * | 2010-03-29 | 2011-10-05 | 攀钢集团钢铁钒钛股份有限公司 | Furnace charge for vanadium-titanium magnetite blast furnace smelting, and blast furnace smelting method |
| CN102242255A (en) * | 2011-06-27 | 2011-11-16 | 攀钢集团有限公司 | Method for sintering high-titanium vanadium titanium magnetite concentrate mixed with limonite |
| CN102776359A (en) * | 2011-05-12 | 2012-11-14 | 攀钢集团有限公司 | Sintering mixture, and vanadium-titanium agglomerate, its preparation method and its application |
| CN104946884A (en) * | 2015-06-08 | 2015-09-30 | 河北钢铁股份有限公司承德分公司 | Method for preparing vanadium-titanium sinter through ferrovanadium furnace slag |
| CN110841495A (en) * | 2019-11-05 | 2020-02-28 | 河钢股份有限公司承德分公司 | System and method for accurately mixing vanadium and titanium with common iron concentrate powder |
-
2005
- 2005-12-27 CN CN 200510132607 patent/CN1789444A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100596310C (en) * | 2008-08-27 | 2010-03-31 | 攀枝花新钢钒股份有限公司 | High titan type high alkalinity sinter and method for preparing same |
| CN102206718A (en) * | 2010-03-29 | 2011-10-05 | 攀钢集团钢铁钒钛股份有限公司 | Furnace charge for vanadium-titanium magnetite blast furnace smelting, and blast furnace smelting method |
| CN102206718B (en) * | 2010-03-29 | 2013-04-10 | 攀钢集团钢铁钒钛股份有限公司 | Furnace charge for vanadium-titanium magnetite blast furnace smelting, and blast furnace smelting method |
| CN102776359A (en) * | 2011-05-12 | 2012-11-14 | 攀钢集团有限公司 | Sintering mixture, and vanadium-titanium agglomerate, its preparation method and its application |
| CN102776359B (en) * | 2011-05-12 | 2013-11-06 | 攀钢集团有限公司 | Sintering mixture, and vanadium-titanium agglomerate, its preparation method and its application |
| CN102242255A (en) * | 2011-06-27 | 2011-11-16 | 攀钢集团有限公司 | Method for sintering high-titanium vanadium titanium magnetite concentrate mixed with limonite |
| CN102242255B (en) * | 2011-06-27 | 2014-08-20 | 攀钢集团有限公司 | Method for sintering high-titanium vanadium titanium magnetite concentrate mixed with limonite |
| CN104946884A (en) * | 2015-06-08 | 2015-09-30 | 河北钢铁股份有限公司承德分公司 | Method for preparing vanadium-titanium sinter through ferrovanadium furnace slag |
| CN110841495A (en) * | 2019-11-05 | 2020-02-28 | 河钢股份有限公司承德分公司 | System and method for accurately mixing vanadium and titanium with common iron concentrate powder |
| CN110841495B (en) * | 2019-11-05 | 2022-05-31 | 河钢股份有限公司承德分公司 | System and method for accurately mixing vanadium and titanium with common iron concentrate powder |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100465306C (en) | Sintered ore capable of improving viscosity of blast furnace slag and process for preparing same | |
| CN102242251A (en) | Alkaline V-Ti pellet and preparation method thereof | |
| CN1789444A (en) | Method for manufacturing high-alkalinity vanadium titano-sintered ore | |
| CN103320607B (en) | A kind of cold-consolidated ball and preparation method thereof | |
| CN1042651C (en) | Manufacture method of vanadic titanium type ultra-high basicity agglomerate | |
| CN110904334A (en) | Preparation method of iron ore pellets | |
| CN102409170A (en) | High-mechanical strength carbon-containing pellets for blast furnace and production method for high-mechanical strength carbon-containing pellets | |
| CN104561530A (en) | Medium-titanium high-strength sintered ore and preparation method thereof | |
| CN104152614B (en) | The distributing process of blast furnace burden | |
| CN103627895A (en) | Production method for sintering chromium powder ore by continuous strand sinter machine | |
| CN113832339A (en) | Flux for sintering | |
| CN113817919A (en) | Sintered ore for improving production quality by controlling grain size of high-silicon flux and method thereof | |
| JPS60255937A (en) | Manufacture of cold-bound briquette | |
| CN103146914B (en) | Cold-pressed high-strength fluorite pellet binder and use method thereof | |
| CN104120206A (en) | Sintering ore for protecting blast furnace | |
| CN1037917C (en) | Technique for smelting ferrochrome using powdered Cr ore reductive sintered blocks | |
| CN103614551B (en) | Pellet ore with good metallurgical property and proper alkalinity, and preparation method thereof | |
| CN103320606B (en) | Method for enhancing mineralization reaction effect of sintered iron ores | |
| CN104988309B (en) | Iron ore pellets boron magnesium compound binding agent and purposes and the processing method of acidic pellet ore | |
| CN110343796B (en) | Method for reducing iron loss in blast furnace smelting of vanadium titano-magnetite | |
| JP2022083583A (en) | Steel desulfurization agent and method for manufacturing the same | |
| CN108774684B (en) | Application method of stainless steel refining slag in laterite sintering | |
| CN111809042A (en) | Use super high SiO2Method for preparing sintered ore from limonite with content | |
| CN110846497B (en) | Binder for magnesium-containing fluxed pellets and preparation method thereof | |
| CN112195339A (en) | Contains K2O、Na2O, F pellet prepared by using magnetite concentrate as main material and combining with hematite concentrate and preparation method thereof |
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 |