CN103205533B - Torpedo tank car deslagging material and preparation method thereof - Google Patents
Torpedo tank car deslagging material and preparation method thereof Download PDFInfo
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- CN103205533B CN103205533B CN201210009348.8A CN201210009348A CN103205533B CN 103205533 B CN103205533 B CN 103205533B CN 201210009348 A CN201210009348 A CN 201210009348A CN 103205533 B CN103205533 B CN 103205533B
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- Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
Abstract
The invention discloses a torpedo tank car deslagging material and a preparation method thereof. The torpedo tank car deslagging material comprises the following component by weight: 17-23 parts of B2O3; 10-14 parts of CaO; 2-3 parts of SiO2; 1-3 parts of Na2O; 7-11 parts of CaF2: and 1-3 parts of a binder. The preparation method includes: mixing the B2O3, the CaO, the SiO2, the Na2O, the CaF2 and the binder, then adding a proper amount of water and stirring them evenly to make pellets with a diameter of 10-20mm, then drying the pellets and preserving them. The torpedo tank car deslagging material provided in the invention ensures that slag and salamanders in the tank can be continuously and effectively dissolved from the bottom of the torpedo tank car to the top. Meanwhile, the torpedo tank car deslagging material also has the characteristics of difficult agglomeration and easy skimming from the torpedo tank car.
Description
Technical field
The present invention relates to the one material and preparation method thereof that removes slag, particularly a kind of torpedo tank car material and preparation method thereof that removes slag.
Background technology
Torpedo tank car is for transporting molten iron and carrying out the instrument of hot metal pretreatment.In the time that molten iron titaniferous is greater than 0.20%, in the time that temperature is less than 1400 DEG C, molten iron viscosity will sharply raise, due to the characteristic of molten iron, in the time that molten iron winding-up is processed, the splash of molten iron, and be subject to after iron fish torpedo ladle turned letter, due to the sharply decline of temperature, splashings and residue molten iron, slag are easily sticked on torpedo tank car inwall and car mouth.Due to the long-time running of high titanium content molten iron, slagging scorification in torpedo tank car, dross situation are on the rise, torpedo tank car molten iron loading capacity reduces, and has a strong impact on molten iron logistics, and desulfuration efficiency and hot metal temperature drop.For this reason, be badly in need of adopting a kind of effective means, reduce the situation of slagging scorification in torpedo tank car, dross.
The conventional material that removes slag is fluorite at present, and its main component is Calcium Fluoride (Fluorspan) (CaF
2), but use separately fluorite big for environment pollution, and corrode serious to the resistance to material of torpedo tank car.
Summary of the invention
For addressing the above problem, the invention provides a kind of torpedo tank car material that removes slag, effectively the phenomenon of slagging scorification in the torpedo tank car of place to go, dross.
Another object of the present invention is to provide the remove slag preparation method of material of a kind of torpedo tank car.
For achieving the above object, the torpedo tank car of the present invention material that removes slag, is characterized in that, the weight part of its component is:
B
2o
3: 17～23 parts;
CaO:10～14 part;
SiO
2: 2～3 parts;
Na
2o:1～3 part;
CaF
2: 7～11 parts;
Binding agent: 1～3 part.
Described binding agent is wilkinite.
The remove slag preparation method of material of torpedo tank car of the present invention, is characterized in that, by described B
2o
3, CaO, SiO
2, Na
2o, CaF
2mix with binding agent, then after adding suitable quantity of water and stirring, make the pelletizing that diameter is 10～20mm, more described pelletizing is dried.
The Main Function of various components in the present invention:
B
2o
3: B
2o
3can significantly reduce CaO-SiO
2the fusing point of slag system, and the erosion that the resistance to material of torpedo tank car is caused is very little;
CaO: can keep slag system compared with low melting point, not worsen desulfurizing iron effect simultaneously;
SiO
2: basic constituent element, B
2o
3be naturally to contain in slag, add in this slag system, keep slag system low melting point;
Na
2o: can reduce CaO-SiO
2the fusing point of slag system;
CaF
2: CaF
2can significantly reduce CaO-SiO
2the fusing point of slag system makes originally to add slag charge energy rapid slagging simultaneously; And CaF
2because content is lower and be combined with calcium-silicate mineral, binder phase, it corrodes very little to the resistance to material of torpedo tank car;
Binding agent: its effect is to consider environmental influence, adds binding agent to form the particle of some strength, causes airborne dust when avoiding torpedo tank car to add and tapping a blast furnace.
The torpedo tank car of the present invention material that removes slag, adopt be easy to obtain, cheap slag system makes, and eliminates dross effect stability, and can not cause molten iron extremely return sulphur and affect torpedo tank car desulfurization, meet torpedo tank car elimination slagging scorification dross, stablize the needs of Intake Quantity.
The torpedo tank car of the present invention material that removes slag, fusing point is controlled near can melt rapidly molten iron temperature region, form smoothly molten slag, can guarantee from torpedo tank car bottom to top continuously and effectively slagging scorification in dissolving vessel, dross, also there is prevented from caking, the characteristic that is easy to claw from torpedo tank car simultaneously.
Embodiment
Torpedo tank car of the present invention removes slag the embodiment composition of material in table 1:
Table 1: the torpedo tank car material prescription table (unit: weight part) that removes slag
| B 2O 3 | CaO | SiO 2 | Na 2O | CaF 2 | Binding agent | |
| Embodiment 1 | 17 | 14 | 3 | 2 | 10 | 1 |
| Embodiment 2 | 20 | 10 | 2 | 3 | 9 | 2 |
| Embodiment 3 | 22 | 10 | 2 | 1 | 11 | 3 |
| Embodiment 4 | 20 | 12 | 3 | 3 | 9 | 2 |
| Embodiment 5 | 23 | 12 | 3 | 2 | 7 | 1 |
Binding agent in above-described embodiment is wilkinite, certainly, also can adopt the general binding agent in this area to substitute, as: Xylo-Mucine, methylcellulose gum, Vltra tears or amylan etc.
Take each component of each embodiment by formula table corresponding data described in table 1.
By described B
2o
3, CaO, SiO
2, Na
2o, CaF
2mix with binding agent, then after adding suitable quantity of water and stirring, make the pelletizing that diameter is 10～20mm, more described pelletizing is carried out preserving after drying treatment.
Described drying treatment can adopt on terrace and dry through 3～5 days, can be also to adopt to dry.
The remove slag fusing point of material of torpedo tank car of the present invention is 1100～1300 DEG C.The material that removes slag once adds in sky torpedo tank car with particulate state, and the joining day is that blast furnace is subject to before iron, and applying unit consumption is 0.4～1.2kg/ ton iron.
Adopt the torpedo tank car of the present invention material that removes slag to try out on torpedo tank car, before test, the average molten iron loading capacity of torpedo tank car is less than 220 tons.Originally the each add-on of material that removes slag when test is 1.2kg/ ton iron, adds altogether 10 times, and torpedo tank car loading capacity is as shown in table 2 with the variation that adds indegree.
Table 2: torpedo tank car loading capacity adds the change list of indegree with the material that removes slag
| Add indegree (inferior) | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
| Loading capacity (ton) | 226.4 | 228.1 | 228.5 | 228.8 | 231.2 | 240.4 | 246.7 | 231.5 | 248.8 | 252.6 |
As can be seen from Table 2, molten iron loading capacity has the trend continuing to increase, illustrate this material to improving torpedo tank car slagging scorification, dross has comparatively obvious effect.
Claims (3)
1. the torpedo tank car material that removes slag, is characterized in that, the weight part of its component is:
B
2o
3: 17～23 parts;
CaO:10～14 part;
SiO
2: 2～3 parts;
Na
2o:1～3 part;
CaF
2: 7～11 parts;
Binding agent: 1～3 part.
2. the torpedo tank car as claimed in claim 1 material that removes slag, is characterized in that, described binding agent is wilkinite.
3. the torpedo tank car as claimed in claim 1 or 2 preparation method of material that removes slag, is characterized in that, by described B
2o
3, CaO, SiO
2, Na
2o, CaF
2mix with binding agent, then after adding suitable quantity of water and stirring, make the pelletizing that diameter is 10～20mm, more described pelletizing is carried out preserving after drying treatment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210009348.8A CN103205533B (en) | 2012-01-13 | 2012-01-13 | Torpedo tank car deslagging material and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210009348.8A CN103205533B (en) | 2012-01-13 | 2012-01-13 | Torpedo tank car deslagging material and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103205533A CN103205533A (en) | 2013-07-17 |
| CN103205533B true CN103205533B (en) | 2014-12-03 |
Family
ID=48752936
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210009348.8A Active CN103205533B (en) | 2012-01-13 | 2012-01-13 | Torpedo tank car deslagging material and preparation method thereof |
Country Status (1)
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|---|---|
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61159506A (en) * | 1985-01-08 | 1986-07-19 | Nippon Kokan Kk <Nkk> | Slag for dephosphorizing molten iron |
| CN1049117A (en) * | 1989-07-31 | 1991-02-13 | 重庆大学 | Presmelting vitrification continuous casting protective slag and production technology thereof |
| CN1068764A (en) * | 1992-07-14 | 1993-02-10 | 冶金工业部钢铁研究总院 | Centrifugal casting molten-slag |
| CN1199099A (en) * | 1998-02-24 | 1998-11-18 | 宝山钢铁(集团)公司 | Desulfurizing slag modifier |
-
2012
- 2012-01-13 CN CN201210009348.8A patent/CN103205533B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61159506A (en) * | 1985-01-08 | 1986-07-19 | Nippon Kokan Kk <Nkk> | Slag for dephosphorizing molten iron |
| CN1049117A (en) * | 1989-07-31 | 1991-02-13 | 重庆大学 | Presmelting vitrification continuous casting protective slag and production technology thereof |
| CN1068764A (en) * | 1992-07-14 | 1993-02-10 | 冶金工业部钢铁研究总院 | Centrifugal casting molten-slag |
| CN1199099A (en) * | 1998-02-24 | 1998-11-18 | 宝山钢铁(集团)公司 | Desulfurizing slag modifier |
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| Publication number | Publication date |
|---|---|
| CN103205533A (en) | 2013-07-17 |
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