CN1091778A - High Ti cold curing pellet - Google Patents
High Ti cold curing pellet Download PDFInfo
- Publication number
- CN1091778A CN1091778A CN 93103638 CN93103638A CN1091778A CN 1091778 A CN1091778 A CN 1091778A CN 93103638 CN93103638 CN 93103638 CN 93103638 A CN93103638 A CN 93103638A CN 1091778 A CN1091778 A CN 1091778A
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- titaniferous
- temperature
- cold curing
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Abstract
The high Ti cold curing pellet that the present invention produces is applied to blast furnace protecting and smelts titaniferous pig iron.
The present invention adopts low-temperature concretion technology to replace high-temperature concretion technology.Using mineral binder bond---water glass replaces Bo Telan cement, thereby the titaniferous amount that has overcome domestic and international multiple titaniferous furnace charge is low, and the quantity of slag is big; Perhaps cost height; Perhaps complicated operation; The perhaps shortcoming of poor performance.
High Ti cold curing pellet of the present invention contains TiO
234～40%, contain TFe33～35%, ultimate compression strength 3100N/～5500N/ is individual.Through medium and small blast furnace (620m
3And 90m
3) the high temperature of going into stove evidence pelletizing, low-temperature performance meets the blast-furnace smelting requirement, pig iron titaniferous 0.1～0.3%.
Description
The present invention relates to cold fixed pellet forming process, produce high Ti cold curing pellet, be used for blast furnace protecting.
The titanium furnace retaining is a kind of successful blast furnace protecting measure, and the furnace retaining material that is used for the titanium furnace retaining at present has the schreyerite piece; Agglomerate with addition of the smart powder of titanium; The titanium-containing blast furnace slag piece; Titanium slag material and the smart powder of titanium that sprays into cupola well.
The clear 62-80230 patent of day disclosure special permission communique (A) proposes with Brian index 1300-3000cm
2The smart powder of the titanium of/g is produced high TiO with addition of the 15-20% portland cement
2Non-agglomerates of sintered pellets.
Titanium-containing blast furnace slag piece-quantity of slag is big in the above-mentioned furnace retaining material; Smart powder-the complicated operation of winding-up titanium; High titanium ore piece output is few; Agglomerate-caking rate with addition of the smart powder of titanium is low, poor performance; Titanium slag material cost height; Pelletizing-preserving period that use cement is made binding agent is long, and cement amount strengthens the quantity of slag greatly, and the pelletizing high-temperature behavior is poor.
The present invention adopts cold consolidation technique to produce high Ti cold curing pellet.Cold consolidation ratio sintering is more suitable in the smart powder agglomeration of titanium, and the caking rate that has overcome sintering process is low, the defective of intensity difference.The present invention uses the smart powder of the titanium of titanium content 32-40% to make ball, thereby pelletizing titanium content height, thereby the quantity of slag is few, and ball is gone into stove thereby easy to operate with furnace charge, its binding agent adopts water glass, thereby add-on is little, and it is lower to make the ball cost, the energy consumption of bringing into play cold consolidation technique is low, and cost is low, the advantage of reduced investment.Through research, technology is ripe, can continuous production, thereby output is higher.
The high Ti cold curing pellet titaniferous 32-40% that the present invention produces contains TFe29-31%, is the low iron ball group of a kind of high titanium, and ultimate compression strength 3100n/～5500n/ is individual; Reduction swellability rate 2.04%, reduction and pulverization ratio 8.21%, water resisting property is good.
This ball is at blast furnace (620M
3) use, add titanium ball 18-20kg/ ton iron.Ti0.10% in the titanium～0.12%, add-on is few, does not influence furnace condition anterograde, slag iron Channel Group, the good permeability and the quantity of slag are few, added continuously three days, the stove skin high-temperature zone point of cupola well, temperature descends, and is up to 28 ℃.
Embodiment:
Use titaniferous 32-40%, the smart powder of the titanium of granularity-200 order 24% carries out drying, and moisture content is controlled at below 2%.This siccative is sent into roller to be ground in the formula mixer.With addition of 8% water glass or 7% water glass and a small amount of additive, batch mixing is sent into after 10 minutes and is squeezed into almond shape pelletizing in the pair roller type ball press.Balling ratio can be brought up to more than 92% behind the returning charge secondary pressure ball.Again green-ball is sent into the cylinder-drying kiln drying, 200～250 ℃ of bake out temperatures.Drying time 40-50 minute, ball intensity reached more than 3100N/.
Claims (1)
- The present invention adopts low-temperature concretion technology to replace high-temperature concretion technology, produce high Ti cold curing pellet, use the smart powder of titaniferous amount 33～40%, granularity-200 order, 22～26%, the moisture content titanium below 2% to be raw material, with addition of mineral binder bond-water glass 8% or compound binding agent (water glass rosin) through batch mixing, high Ti cold curing pellet is produced in pressure ball and cryodrying, and intensity 3100N/-5500N/ is individual.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN93103638A CN1035887C (en) | 1993-04-05 | 1993-04-05 | High Ti cold curing pellet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN93103638A CN1035887C (en) | 1993-04-05 | 1993-04-05 | High Ti cold curing pellet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1091778A true CN1091778A (en) | 1994-09-07 |
| CN1035887C CN1035887C (en) | 1997-09-17 |
Family
ID=4984709
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN93103638A Expired - Fee Related CN1035887C (en) | 1993-04-05 | 1993-04-05 | High Ti cold curing pellet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1035887C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105624538A (en) * | 2015-12-30 | 2016-06-01 | 郭宝贵 | Smelting technology of steel for cooker |
| CN108754133A (en) * | 2018-06-14 | 2018-11-06 | 攀钢集团攀枝花钢铁研究院有限公司 | A kind of high titanium solvent borne pelletizing of high chromium and the preparation method and application thereof |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100366756C (en) * | 2004-10-29 | 2008-02-06 | 宝山钢铁股份有限公司 | Titanium ore cold briquetting for protecting blast furnace and its production method |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU626155B2 (en) * | 1988-07-26 | 1992-07-23 | Commonwealth Scientific And Industrial Research Organisation | Titanium agglomerates |
| CN1018933B (en) * | 1991-05-24 | 1992-11-04 | 宣化钢铁公司 | Cold-consolidation and agglomeration technology for loose powder material |
-
1993
- 1993-04-05 CN CN93103638A patent/CN1035887C/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105624538A (en) * | 2015-12-30 | 2016-06-01 | 郭宝贵 | Smelting technology of steel for cooker |
| CN105624538B (en) * | 2015-12-30 | 2017-10-31 | 大连威尔特钢有限公司 | A kind of pan steel smelting technique |
| CN108754133A (en) * | 2018-06-14 | 2018-11-06 | 攀钢集团攀枝花钢铁研究院有限公司 | A kind of high titanium solvent borne pelletizing of high chromium and the preparation method and application thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1035887C (en) | 1997-09-17 |
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| DD01 | Delivery of document by public notice |
Addressee: Wang Mingkui Document name: Deemed as a notice of withdrawal |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |