CN1035887C - High Ti cold curing pellet - Google Patents
High Ti cold curing pellet Download PDFInfo
- Publication number
- CN1035887C CN1035887C CN93103638A CN93103638A CN1035887C CN 1035887 C CN1035887 C CN 1035887C CN 93103638 A CN93103638 A CN 93103638A CN 93103638 A CN93103638 A CN 93103638A CN 1035887 C CN1035887 C CN 1035887C
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- titanium
- pellet
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Abstract
The present invention relates to a cooled agglomerated pellet with high titanium content, which is used for protecting a blast furnace and smelting pig iron containing titanium. The present invention uses a low-temperature agglomerating technique to replace a high-temperature agglomerating technique. Water glass which is an inorganic binder is used for replacing Portland cement, so that the present invention overcomes the defects of low titanium content, a large amount of slag, or high cost or complex operation or poor performance of various furnace materials containing the titanium at home and aboard. The cooled agglomerated pellet with high titanium content contains 34 to 40% of TiO2 and 33 to 35% of TFe, and has the compression strength of 3100N to 5500N. By the application experiments of middle blast furnaces and small blast furnaces (620m<3> and 90m<3>), the high-temperature performance and the low-temperature performance of the pellet conform to the smelting requirements of the blast furnace, and the pig iron contains 0.1 to 0.3% of titanium.
Description
A kind of production method of producing high Ti cold curing pellet of the present invention belongs to blast furnace raw materials for production field, adopts low-temperature concretion technology to replace high-temperature concretion explained hereafter high Ti cold curing pellet.
The titanium furnace retaining is that a kind of successful blast furnace protecting is arranged to drag and is used for the titanium furnace charge at present the schreyerite piece is arranged; 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 the grace index 1300-3000cm that distributes food among the guests
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; The 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 objective of the invention is to adopt cold consolidation technique to produce high Ti cold curing pellet and provide fine fodder for blast furnace.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, because pelletizing titanium content height, thereby the quantity of slag is little.Ball is gone into stove thereby easy to operate with furnace charge, and its binding agent adopts water glass, thereby add-on is little, and it is lower to make the ball cost, and 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 invention is characterized in: use titaniferous 32-40%, account for 22-26% below the granularity 0.044mm, moisture content is lower than 2% the smart powder of titanium, compound binding agent water glass rosin or water glass with addition of 8%, and abundant batch mixing, pressure ball carries out cryodrying at last and handles then.
The high Ti cold curing pellet that the present invention produces, ultimate compression strength 3100N/-5500N/ is individual, reduction swellability rate 2.04%, reduction and pulverization ratio 8.21%, water resisting property is better.
This ball is at blast furnace (620m
3) use, add titanium ball 18-20 kilogram/ton iron.Titanium 0.10%-0.12% in the iron, 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:
With titaniferous 35%, the smart powder of the titanium of granularity 0.044mm following 24% carries out drying, and moisture content is controlled at below 2%.This siccative is sent in the mixer.Compound binding agent water glass rosin with addition of mineral binder bond 8%.Batch mixing is sent into after 10 minutes and is pressed 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 pelletizing is sent into the cylinder-drying kiln drying, 240 ℃ of bake out temperatures, drying time 50 minutes is so far promptly produced high Ti cold curing pellet, more than ball intensity 3100N/.
Claims (1)
1, a kind of method of producing high Ti cold curing pellet, adopt low-temperature concretion technology to replace high-temperature concretion technology, it is characterized in that: use titaniferous 32-40%, granularity 0.044mm is following accounts for 22-26%, moisture content is lower than 2% the smart powder of titanium, compound binding agent water glass rosin or water glass with addition of 8%, fully batch mixing, pressure ball carries out cryodrying at last and handles then.
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 CN1091778A (en) | 1994-09-07 |
| CN1035887C true 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 (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 |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1990001072A1 (en) * | 1988-07-26 | 1990-02-08 | Commonwealth Scientific And Industrial Research Organisation | Titanium agglomerates |
| CN1056532A (en) * | 1991-05-24 | 1991-11-27 | 宣化钢铁公司 | The cold fixed agglomeration process of diffusing shape powder |
-
1993
- 1993-04-05 CN CN93103638A patent/CN1035887C/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1990001072A1 (en) * | 1988-07-26 | 1990-02-08 | Commonwealth Scientific And Industrial Research Organisation | Titanium agglomerates |
| CN1056532A (en) * | 1991-05-24 | 1991-11-27 | 宣化钢铁公司 | The cold fixed agglomeration process of diffusing shape powder |
Cited By (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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1091778A (en) | 1994-09-07 |
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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 | ||
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| 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 |