CN104926325B - A kind of bottom of steel ladle castable and preparation method thereof - Google Patents
A kind of bottom of steel ladle castable and preparation method thereof Download PDFInfo
- Publication number
- CN104926325B CN104926325B CN201510311418.9A CN201510311418A CN104926325B CN 104926325 B CN104926325 B CN 104926325B CN 201510311418 A CN201510311418 A CN 201510311418A CN 104926325 B CN104926325 B CN 104926325B
- Authority
- CN
- China
- Prior art keywords
- steel ladle
- preparation
- substrate material
- ladle castable
- content
- 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.)
- Active
Links
Landscapes
- Treatment Of Steel In Its Molten State (AREA)
- Ceramic Products (AREA)
Abstract
The present invention relates to a kind of bottom of steel ladle castable and preparation method thereof.Its technical scheme is：, as aggregate, the titanium oxide fine powder with the ferrotianium slag fine powder, the zirconium oxide micro mist of 1 ~ 4wt% and 2 ~ 5wt% of 25 ~ 35wt% is as substrate material for ferrotianium solid impurity particle with 60 ~ 70wt%；By the aggregate and the content of the substrate material, first substrate material is mixed, then the substrate material after mixing is added in the aggregate, be well mixed；The Ludox for accounting for the substrate material and 3 ~ 7wt% of the aggregate sum being subsequently adding, being stirred, vibration moulding conserves under room temperature condition 6 ~ 12 hours, finally 12 ~ 24h is incubated under the conditions of 90 ~ 110 DEG C, bottom of steel ladle castable is obtained.The characteristics of present invention has with low cost and process is simple；Prepared bottom of steel ladle castable high volume good stability and anti-scour property are strong.
Description
Technical field
The invention belongs to pouring materialfor steel ladle technical field.Specifically related to a kind of bottom of steel ladle castable and preparation method thereof.
Background technology
Ladle is important warehousing and transportation facilities and smelting equipment in steel and iron industry.Bottom of steel ladle refractory material is held in steelmaking process
By steel stream washed away with the flowing of molten steel and cause structure spalling and slag corrosion so that bag bottom refractory material service life it is remote
Less than positions such as containment wall and slag lines, while also the safety in production to hot industry causes certain hidden danger.
At present, Fireproof material for steel ladle bottom is mainly " corundum-spinel pouring material " and " high purity aluminium oxide-point is brilliant
The castable of the magnalium systems such as stone matter castable/prefabricated component ".
Using " corundum-spinel pouring material " as Fireproof material for steel ladle bottom, its refractoriness is high and high-temperature mechanics
Function admirable, especially corundum substantially, can preferably relax fire proofed wood during MOLTEN STEEL FLOW with spinelle difference of thermal expansion coefficients
Thermal stress inside material；Using " corundum-spinel pouring material " as Fireproof material for steel ladle bottom, although can be using heat
The micro-crack caused by coefficient of expansion difference alleviating the thermal stress of material internal, but the presence of micro-crack be greatly reduced it is resistance to
Slag-resistant erosion/the permeance property of fiery material.
Using " high purity aluminium oxide-spinel castable/prefabricated component ", spinelle is formed in situ using aluminum oxide, and
Cause certain volumetric expansion, strengthen the densification degree of refractory material, improve the energy that refractory material slag-resistant corrodes and permeates
Power；Using " high purity aluminium oxide-spinel castable/prefabricated component ", the reaction rate which is formed in situ spinelle is very fast, it is difficult to
It is evenly distributed, causes the expansion damage of bag bottom refractory material local obvious（" bulge " phenomenon）.
Additionally, the cost of the refractory raw material such as corundum, high purity aluminium oxide and high-purity spinel is higher, bag bottom fire resisting is improve
The development cost of material, so as to reduce the competitiveness of bag bottom refractory material.
The content of the invention
It is contemplated that overcoming prior art defect, it is therefore intended that provide a kind of ladle bag of with low cost, process is simple
The preparation method of bottom pour mold material feeding, the high volume good stability and resistance to slag corrosion of the bottom of steel ladle castable prepared with the method
Can be strong.
For achieving the above object, the technical solution adopted in the present invention is：Ferrotianium solid impurity particle with 60 ~ 70wt% as aggregate,
Titanium oxide fine powder with the ferrotianium slag fine powder, the zirconium oxide micro mist of 1 ~ 4wt% and 2 ~ 5wt% of 25 ~ 35wt% is as substrate material；By described
Substrate material is first mixed by the content of aggregate and the substrate material, then the substrate material after mixing is added in the aggregate, and mixing is equal
It is even；The Ludox for accounting for the substrate material and 3 ~ 7wt% of the aggregate sum is subsequently adding, is stirred, vibration moulding, room temperature bar
Conserve under part 6 ~ 12 hours, finally 12 ~ 24h is incubated under the conditions of 90 ~ 110 DEG C, bottom of steel ladle castable is obtained.
The ferrotianium slag is to smelt the slag produced by ferro-titanium, the main thing of ferrotianium slag is mutually titanium calcium aluminate, corundum,
Calcium hexaluminate, Calcium dialuminate and calcium titanate；Wherein：Al2O3Content is 70 ~ 80wt%, TiO2Content be 10 ~ 15wt%, CaO content
For 10 ~ 15wt%, Fe2O3Content ＜ 2wt%.
The granularity of the ferrotianium solid impurity particle is 8 ~ 0.1mm.
The granularity of the ferrotianium slag fine powder is 0.1 ~ 0.088mm.
The ZrO of the zirconium oxide micro mist2Content ＞ 99wt%, grain diameter are 1 ~ 2 μm.
The TiO of the titanium oxide fine powder2Content ＞ 99wt%, grain diameter are 1 ~ 2 μm.
The SiO of the Ludox2Content is 20 ~ 30wt%.
There is following good effect compared with prior art due to taking above-mentioned technical proposal, the present invention：
1st, the present invention adopts ferrotianium slag for primary raw material, greatly reduces the development cost of bottom of steel ladle castable.
2nd, the present invention saves human resources without the need for special Preparation equipment and treatment technology, and technological process is simple.
3rd, the present invention utilizes the bulk effect caused by the thing phase reaction under high temperature between ferrotianium slag component to alleviate castable
Internal thermal stress, and then improve the high volume stability and resistance to slag corrosion of castable.
Bottom of steel ladle castable Jing prepared by the present invention is determined：After 1550 DEG C × 3h burns, Linear change rate is -0.05 ~ -0.1%；
1550 DEG C of Static crucible method anti-slag experiment erosion index are 8 ~ 15%.
Therefore, the characteristics of present invention has with low cost and process is simple；Prepared bottom of steel ladle castable high-temperature body
Product good stability and anti-scour property are strong.
Specific embodiment
With reference to specific embodiment, the invention will be further described, not the restriction to its protection domain.
To avoid repeating, first will be the raw material Unify legislation involved by this specific embodiment as follows, no longer go to live in the household of one's in-laws on getting married in embodiment
State：
The ferrotianium slag is to smelt the slag produced by ferro-titanium, the main thing of ferrotianium slag is mutually titanium calcium aluminate, corundum,
Calcium hexaluminate, Calcium dialuminate and calcium titanate；Wherein：Al2O3Content is 70 ~ 80wt%, TiO2Content be 10 ~ 15wt%, CaO content
For 10 ~ 15wt%, Fe2O3Content ＜ 2wt%.
The granularity of the ferrotianium solid impurity particle is 8 ~ 0.1mm.
The granularity of the ferrotianium slag fine powder is 0.1 ~ 0.088mm.
The ZrO of the zirconium oxide micro mist2Content ＞ 99wt%, grain diameter are 1 ~ 2 μm.
The TiO of the titanium oxide fine powder2Content ＞ 99wt%, grain diameter are 1 ~ 2 μm.
The SiO of the Ludox2Content is 20 ~ 30wt%.
Embodiment 1
A kind of bottom of steel ladle castable and preparation method thereof.The preparation method of the bottom of steel ladle castable is：With 60 ~
The ferrotianium solid impurity particle of 64wt% is aggregate, with the ferrotianium slag fine powder of 31 ~ 35wt%, the zirconium oxide micro mist of 1 ~ 3wt% and the oxygen of 2 ~ 4wt%
It is substrate material to change titanium micro mist；By the aggregate and the content of the substrate material, first substrate material is mixed, then by the matrix after mixing
During material adds the aggregate, it is well mixed；The Ludox for accounting for the substrate material and 3 ~ 4wt% of the aggregate sum is subsequently adding, is stirred
Mix uniform, vibration moulding conserves under room temperature condition 6 ~ 12 hours, finally 12 ~ 24h is incubated under the conditions of 90 ~ 110 DEG C, steel is obtained
Bag bag bottom pour mold material feeding.
Bottom of steel ladle castable manufactured in the present embodiment is after testing：Line change after 1550 DEG C × 3h burns turns to -0.08 ~ -0.1；
1550 DEG C of Static crucible method anti-slag experiment erosion index are 11 ~ 15%.
Embodiment 2
A kind of bottom of steel ladle castable and preparation method thereof.The preparation method of the bottom of steel ladle castable is：With 62 ~
The ferrotianium solid impurity particle of 66wt% is aggregate, with the ferrotianium slag fine powder of 29 ~ 33wt%, the zirconium oxide micro mist of 2 ~ 4wt% and the oxygen of 3 ~ 5wt%
It is substrate material to change titanium micro mist；By the aggregate and the content of the substrate material, first substrate material is mixed, then by the matrix after mixing
During material adds the aggregate, it is well mixed；The Ludox for accounting for the substrate material and 4 ~ 5wt% of the aggregate sum is subsequently adding, is stirred
Mix uniform, vibration moulding conserves under room temperature condition 6 ~ 12 hours, finally 12 ~ 24h is incubated under the conditions of 90 ~ 110 DEG C, steel is obtained
Bag bag bottom pour mold material feeding.
Bottom of steel ladle castable manufactured in the present embodiment is after testing：Line change after 1550 DEG C × 3h burns turns to -0.07 ~ -0.09；
1550 DEG C of Static crucible method anti-slag experiment erosion index are 10 ~ 14%.
Embodiment 3
A kind of bottom of steel ladle castable and preparation method thereof.The preparation method of the bottom of steel ladle castable is：With 64 ~
The ferrotianium solid impurity particle of 68wt% is aggregate, with the ferrotianium slag fine powder of 27 ~ 31wt%, the zirconium oxide micro mist of 1 ~ 3wt% and the oxygen of 2 ~ 4wt%
It is substrate material to change titanium micro mist；By the aggregate and the content of the substrate material, first substrate material is mixed, then by the matrix after mixing
During material adds the aggregate, it is well mixed；The Ludox for accounting for the substrate material and 5 ~ 6wt% of the aggregate sum is subsequently adding, is stirred
Mix uniform, vibration moulding conserves under room temperature condition 6 ~ 12 hours, finally 12 ~ 24h is incubated under the conditions of 90 ~ 110 DEG C, steel is obtained
Bag bag bottom pour mold material feeding.
Bottom of steel ladle castable manufactured in the present embodiment is after testing：Line change after 1550 DEG C × 3h burns turns to -0.06 ~ -0.08；
1550 DEG C of Static crucible method anti-slag experiment erosion index are 9 ~ 13%.
Embodiment 4
A kind of bottom of steel ladle castable and preparation method thereof.The preparation method of the bottom of steel ladle castable is：With 66 ~
The ferrotianium solid impurity particle of 70wt% is aggregate, with the ferrotianium slag fine powder of 25 ~ 29wt%, the zirconium oxide micro mist of 2 ~ 4wt% and the oxygen of 3 ~ 5wt%
It is substrate material to change titanium micro mist；By the aggregate and the content of the substrate material, first substrate material is mixed, then by the matrix after mixing
During material adds the aggregate, it is well mixed；The Ludox for accounting for the substrate material and 6 ~ 7wt% of the aggregate sum is subsequently adding, is stirred
Mix uniform, vibration moulding conserves under room temperature condition 6 ~ 12 hours, finally 12 ~ 24h is incubated under the conditions of 90 ~ 110 DEG C, steel is obtained
Bag bag bottom pour mold material feeding.
Bottom of steel ladle castable manufactured in the present embodiment is after testing：Line change after 1550 DEG C × 3h burns turns to -0.05 ~ -0.07；
1550 DEG C of Static crucible method anti-slag experiment erosion index are 8 ~ 12%.
This specific embodiment has following good effect compared with prior art：
1st, this specific embodiment adopts ferrotianium slag for primary raw material, greatly reduce the exploitation of bottom of steel ladle castable into
This.
2nd, this specific embodiment saves human resources, technological process without the need for special Preparation equipment and treatment technology
Simply.
3rd, the bulk effect caused using the thing phase reaction under high temperature between ferrotianium slag component by this specific embodiment is delaying
Thermal stress inside solution castable, and then improve the high volume stability and resistance to slag corrosion of castable.
Bottom of steel ladle castable Jing prepared by this specific embodiment is determined：1550 DEG C × 3h burn after Linear change rate for-
0.05~-0.1%；1550 DEG C of Static crucible method anti-slag experiment erosion index are 8 ~ 15%.
Therefore, the characteristics of this specific embodiment has with low cost and process is simple；Prepared bottom of steel ladle cast
Material high volume good stability and anti-scour property are strong.
Claims (8)
1. a kind of preparation method of bottom of steel ladle castable, it is characterised in that the ferrotianium solid impurity particle with 60 ~ 70wt% as aggregate, with
The titanium oxide fine powder of the ferrotianium slag fine powder, the zirconium oxide micro mist of 1 ~ 4wt% and 2 ~ 5wt% of 25 ~ 35wt% is substrate material；By the bone
Substrate material is first mixed by the content of material and the substrate material, then the substrate material after mixing is added in the aggregate, and mixing is equal
It is even；The Ludox for accounting for the substrate material and 3 ~ 7wt% of the aggregate sum is subsequently adding, is stirred, vibration moulding, room temperature bar
Conserve under part 6 ~ 12 hours, finally 12 ~ 24h is incubated under the conditions of 90 ~ 110 DEG C, bottom of steel ladle castable is obtained.
2. the preparation method of bottom of steel ladle castable according to claim 1, it is characterised in that the ferrotianium slag is to smelt
Slag produced by ferro-titanium, the main thing of ferrotianium slag is mutually titanium calcium aluminate, corundum, calcium hexaluminate, Calcium dialuminate and metatitanic acid
Calcium；Wherein：Al2O3Content is 70 ~ 80wt%, TiO2Content is 10 ~ 15wt%, and CaO content is 10 ~ 15wt%, Fe2O3Content ＜
2wt%。
3. the preparation method of bottom of steel ladle castable according to claim 1, it is characterised in that the ferrotianium solid impurity particle
Granularity is 8 ~ 0.1mm.
4. the preparation method of bottom of steel ladle castable according to claim 1, it is characterised in that the ferrotianium slag fine powder
Granularity is 0.1 ~ 0.088mm.
5. the preparation method of bottom of steel ladle castable according to claim 1, it is characterised in that the zirconium oxide micro mist
ZrO2Content ＞ 99wt%, grain diameter are 1 ~ 2 μm.
6. the preparation method of bottom of steel ladle castable according to claim 1, it is characterised in that the titanium oxide fine powder
TiO2Content ＞ 99wt%, grain diameter are 1 ~ 2 μm.
7. the preparation method of bottom of steel ladle castable according to claim 1, it is characterised in that the SiO of the Ludox2Contain
Measure as 20 ~ 30wt%.
8. a kind of bottom of steel ladle castable, it is characterised in that the bottom of steel ladle castable is appointed according in claim 1 ~ 7
Bottom of steel ladle castable prepared by the preparation method of the bottom of steel ladle castable described in.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510311418.9A CN104926325B (en) | 2015-06-09 | 2015-06-09 | A kind of bottom of steel ladle castable and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510311418.9A CN104926325B (en) | 2015-06-09 | 2015-06-09 | A kind of bottom of steel ladle castable and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104926325A CN104926325A (en) | 2015-09-23 |
| CN104926325B true CN104926325B (en) | 2017-03-29 |
Family
ID=54113787
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510311418.9A Active CN104926325B (en) | 2015-06-09 | 2015-06-09 | A kind of bottom of steel ladle castable and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104926325B (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104609872B (en) * | 2015-01-12 | 2016-06-15 | 马鞍山利尔开元新材料有限公司 | Modified refractory material of a kind of titanium calcium aluminate-alumine and its preparation method and application |
| CN105669220B (en) * | 2016-01-05 | 2018-02-09 | 武汉科技大学 | A kind of Ausmelt furnace liner regeneration alumina chrome brick and preparation method thereof |
| CN105541359B (en) * | 2016-01-18 | 2018-01-12 | 武汉科技大学 | A kind of ladle splash guard castable refractory and preparation method thereof |
| CN106747363B (en) * | 2016-11-16 | 2019-04-26 | 武汉科技大学 | A kind of chromite calcination rotary kiln working lining castable and preparation method thereof |
| CN106365660B (en) * | 2016-11-21 | 2019-04-26 | 武汉科技大学 | A kind of tundish permanent layer titanium calcium aluminate castable and preparation method thereof |
| CN106554194A (en) * | 2016-11-21 | 2017-04-05 | 武汉科技大学 | A kind of ceramsite sand rotary kiln liner and preparation method thereof |
| CN106882973A (en) * | 2017-03-01 | 2017-06-23 | 武汉科技大学 | A kind of fireclay insulating refractory with ferrotianium slag as major ingredient and preparation method thereof |
| CN106747526A (en) * | 2017-03-01 | 2017-05-31 | 武汉科技大学 | A kind of Al2O3‑TiO2CaO systems complex phase fireclay insulating refractory and preparation method thereof |
| CN107056309B (en) * | 2017-04-07 | 2019-09-17 | 武汉科技大学 | A kind of Al2O3-TiO2- CaO matter gravity flow pouring material and preparation method thereof |
| CN108424129B (en) * | 2018-04-27 | 2020-12-18 | 武汉科技大学 | Heat-insulating wear-resistant refractory castable and preparation method thereof |
| CN108409344B (en) * | 2018-05-24 | 2020-10-13 | 武汉科技大学 | Circulating fluidized bed boiler top wear-resistant castable and preparation method thereof |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3226260B2 (en) * | 1996-09-19 | 2001-11-05 | 大光炉材株式会社 | Wet spraying of refractory composition for dense amorphous refractories |
| CN104478448A (en) * | 2014-12-03 | 2015-04-01 | 武汉钢铁(集团)公司 | Blast furnace slag runner castable prepared from ferrotitanium slag |
-
2015
- 2015-06-09 CN CN201510311418.9A patent/CN104926325B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN104926325A (en) | 2015-09-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104926325B (en) | A kind of bottom of steel ladle castable and preparation method thereof | |
| CN105541359B (en) | A kind of ladle splash guard castable refractory and preparation method thereof | |
| CN105036774B (en) | A kind of refining vanadium reflection inner lining of furnace titanium calcium aluminate prefabricated component and preparation method thereof | |
| CN103880454B (en) | The fast dry type anti-explosion refractory castable that a kind of iron notch reworked material is recycled | |
| CN103769567B (en) | Tundish compound flow straightener and preparation method thereof | |
| CN102233412B (en) | Carbon-free steel ladle drainage agent for extremely-low carbon steel | |
| CN107244904A (en) | A kind of corundum spinel castable and preparation method thereof | |
| CN104909772B (en) | Aluminous cement combined corundum matter castable containing compound additive and preparation method thereof | |
| CN105819875B (en) | Refractory castable for Ausmelt copper smelting furnace flue and preparation method thereof | |
| CN102329137A (en) | Carbon-free alumina-magnesia unburned brick and preparation method and application thereof | |
| CN106431436A (en) | Electric furnace cover castable taking aluminum-chromium slag as main material and preparation method thereof | |
| CN108751957A (en) | A kind of carbon-free high-purity magnalium pressed machine brick of refined steel ladles and preparation method thereof | |
| CN104261848A (en) | Chrome-oxide-containing mullite brick and preparation method thereof | |
| CN102898168B (en) | Compound magnesium-aluminum-chrome refractory castable for copper smelting tundish | |
| CN103449803B (en) | Quick-drying anti-explosion refractory castable | |
| CN101215180B (en) | Method for producing AZS electric melting refractory materials by natural mineral raw materials | |
| CN108191404A (en) | A kind of ferro-silicon nitride-periclase-magnesium aluminate spinel compoud and preparation method | |
| CN105777160B (en) | A kind of ladle slag line MgO-Cr7C3Brick and preparation method thereof | |
| CN105272320B (en) | Unfired Al2O3-Cr7C3 brick for hot metal ladle wall and preparation method thereof | |
| CN105461316A (en) | Quartz electric furnace lining refractory material | |
| CN109776101B (en) | CA (certificate Authority)6-MA-Cr2O3-Al2O3Ladle lining castable and preparation method thereof | |
| CN109608174A (en) | It can hydrated alumina combined corundum-spinel pouring material and preparation method thereof | |
| CN105669220B (en) | A kind of Ausmelt furnace liner regeneration alumina chrome brick and preparation method thereof | |
| CN107602136A (en) | A kind of refractory material liner body for tundish and preparation method thereof | |
| CN102910918A (en) | Magnesium-calcium-zirconium composite material |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |