CN103936432A - Steel slag separating agent - Google Patents
Steel slag separating agent Download PDFInfo
- Publication number
- CN103936432A CN103936432A CN201410084406.2A CN201410084406A CN103936432A CN 103936432 A CN103936432 A CN 103936432A CN 201410084406 A CN201410084406 A CN 201410084406A CN 103936432 A CN103936432 A CN 103936432A
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- powder
- agent
- separating agent
- slag separating
- carbon brick
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Abstract
The invention relates to a steel slag separating agent, and belongs to the field of steelmaking auxiliary materials. The steel slag separating agent comprises, by weight, 30-50% of waste magnesia carbon brick powder, 1-10% of fused magnesia powder, 1-10% of waste graphite electrode powder, 1-3% of a dispersing agent, 10-15% of a binding agent, 5-15% of a suspending agent, and the balance of water. With the separating agent, the slag adhesion phenomenon of the steel ladle can be effectively reduced, and the steel slag adhered on the edge and the slag line position of the steel ladle can be easily cleaned.
Description
[technical field]
The present invention relates to make steel subsidiary material field, especially relate to a kind of for preventing the slag separating agent of steel ladle edge and slag lining steel bonding, dry slag.
[background technology]
Known, ladle is the carrier of iron and steel enterprise as splendid attire molten steel, but owing to being subject to the impact of liquid steel temperature, steel grade, refractory materials and other correlative factor, dry slag phenomenon often can in use occur for the bag edge of ladle and slag lining; In prolonged application, find, dry slag not only can cause reducing of ladle bore and volume, has influence on the freight volume of molten steel, but also can cause the output of blast furnace and converter to reduce, thereby has influence on the effect of enforcement and the refining of refinery practice; In addition, the existence of dry slag not only can increase the weight of ladle, reduces the coefficient of lifting safety, but also can shorten the bag age of ladle, increases the consumption of refractory materials, therefore, must clear up the normal operation that just can guarantee ladle to ladle dry slag; For example: Handan Iron and Steel Co three is made steel in ladle operation process too fast for preventing molten steel temperature drop, it has adopted " ladle stamp " technology, but, because steel ladle edge dry slag is more serious, need to carry out sordid clearly words, the clad of ladle just cannot cover surely, and therefore, how can effectively solve ladle dry slag problem just becomes one of research topic of those skilled in that art.
[summary of the invention]
In order to overcome the deficiency in background technology, the invention discloses a kind of slag separating agent, described separating agent not only can effectively reduce ladle dry slag phenomenon, but also can make the slag that sticks to steel ladle edge and slag lining be easy to cleaning.
For achieving the above object, the present invention adopts following technical scheme:
A kind of slag separating agent, described separating agent is made up of following compositions in weight percentage: waste magnesia carbon brick powder 30～50%, electrofusion magnesia powder 1～10%, useless graphite electrode powder 1～10%, dispersion agent 1～3%, bonding agent 10～15% and suspension agent 5～15%, and its surplus is water; Wherein, waste magnesia carbon brick powder requires containing magnesium oxide > 75%, carbon > 12%, fineness 200 order all-pass mistakes; Electrofusion magnesia powder requires containing magnesium oxide > 97%, fineness 200 order all-pass mistakes; Useless graphite electrode powder requires carbon containing > 97%, fineness 200 order all-pass mistakes; Dispersion agent is aluminium hydroxide > 98%, fineness 200 order all-pass mistakes; Bonding agent is 85% phosphoric acid liquid; Suspension agent is silicon powder > 97%, fineness 500 order all-pass mistakes.
Further, described slag separating agent is made up of following compositions in weight percentage: waste magnesia carbon brick powder 35%, electrofusion magnesia powder 8%, useless graphite electrode powder 8%, dispersion agent 2%, bonding agent 12% and suspension agent 12%, its surplus is water.
Further, described slag separating agent is made up of following compositions in weight percentage: waste magnesia carbon brick powder 40%, electrofusion magnesia powder 5%, useless graphite electrode powder 5%, dispersion agent 3%, bonding agent 12% and suspension agent 12%, its surplus is water.
Further, described slag separating agent is made up of following compositions in weight percentage: waste magnesia carbon brick powder 45%, electrofusion magnesia powder 2%, useless graphite electrode powder 3%, dispersion agent 3%, bonding agent 12% and suspension agent 12%, its surplus is water.
Further, the magnesia carbon brick abrasive dust of pulling down when described waste magnesia carbon brick powder is repaired liner by ladle is made; The rejected material abrasive dust that described useless graphite electrode powder is dismantled to a certain extent time for the Graphite Electrodes loss that heats up by steel mill's refining furnace is made.
Further, described slag separating agent making method is as follows: first pour in corresponding tank and be heated to boiling in connection with agent, dispersion agent and water, make work in-process; Again waste magnesia carbon brick powder, electrofusion magnesia powder, useless graphite electrode powder and suspension agent are stirred and make powder in addition; Finally work in-process and powder are mixed to rear uniform stirring 25～35 minutes, make finished product.
Owing to adopting technical scheme as above, the present invention has following beneficial effect:
Ladle separating agent cost of the present invention is lower, and it adopts steel mill's rejected material as raw material, and therefore cost is only 1/3 of equal new raw material price; When application, described slag separating agent is sprayed to ladle slag line and bag along position, not only can corresponding effective minimizing ladle dry slag phenomenon, easily come off along the slag at position but also can make to adhere to bag, and fall in the interior molten steel of bag, the slag that has sticked to steel ladle edge and slag lining is also highly susceptible to cleaning; Prove through contrast experiment repeatedly, the ladle of applying described separating agent not only can obviously increase access times, reduce the consumption of resistance to material, and ladle turnover rate and molten steel recovery rate can both effectively improve, described separating agent not only can produce beneficial effect to ladle stamp and cleaning bag edge, but also can contribute to faster production rhythm and save production cost.
[embodiment]
Can explain in more detail the present invention by the following examples, disclose object of the present invention and be intended to protect all changes and improvements in the scope of the invention, the present invention is not limited to the following examples:
Described slag separating agent is made up of following compositions in weight percentage: waste magnesia carbon brick powder 30～50%, electrofusion magnesia powder 1～10%, useless graphite electrode powder 1～10%, dispersion agent 1～3%, bonding agent 10～15% and suspension agent 5～15%, and its surplus is water; Wherein, the magnesia carbon brick abrasive dust of pulling down when described waste magnesia carbon brick powder is repaired liner by ladle is made, require containing magnesium oxide > 75%, carbon > 12%, fineness 200 order all-pass mistakes, because waste magnesia carbon brick powder has, compact structure, slag resistance are strong, the feature of good thermal shock stability, therefore, set it as main base-material be sprayed at ladle slag line and bag mouthful time, can not cause erosion to the cylinder-packing of magnesia carbon brick material; Described electrofusion magnesia powder requires containing magnesium oxide > 97%, fineness 200 order all-pass mistakes, and its effect is mainly the Chemical Composition of adjusting described separating agent, improves product refractoriness; Described useless graphite electrode powder is also the main base-material of described separating agent, its rejected material abrasive dust of being dismantled to a certain extent time for the Graphite Electrodes loss that heats up by steel mill's refining furnace is made, require carbon containing > 97%, fineness 200 order all-pass mistakes, its effect is that oilness is good, resistance to erosion; Described dispersion agent is aluminium hydroxide > 98%, fineness 200 order all-pass mistakes, and its effect is to improve peptization and emulsification; Described bonding agent is the phosphoric acid liquid of concentration 85%; Described suspension agent is silicon powder > 97%, fineness 500 order all-pass mistakes; The Main Function of bonding agent and suspension agent is to keep the slurry stirring to be suspended state, improves stability and the ease of use of described separating agent;
As required, described slag separating agent can be made up of following compositions in weight percentage: waste magnesia carbon brick powder 35%, electrofusion magnesia powder 8%, useless graphite electrode powder 8%, dispersion agent 2%, bonding agent 12% and suspension agent 12%, and its surplus is water; Or, formed by following compositions in weight percentage: waste magnesia carbon brick powder 40%, electrofusion magnesia powder 5%, useless graphite electrode powder 5%, dispersion agent 3%, bonding agent 12% and suspension agent 12%, its surplus is water; Again or, formed by following compositions in weight percentage: waste magnesia carbon brick powder 45%, electrofusion magnesia powder 2%, useless graphite electrode powder 3%, dispersion agent 3%, bonding agent 12% and suspension agent 12%, its surplus is water;
In addition, described slag separating agent making method is as follows: first pour in corresponding tank and be heated to boiling in connection with agent, dispersion agent and water, make work in-process; Again waste magnesia carbon brick powder, electrofusion magnesia powder, useless graphite electrode powder and suspension agent are stirred and make powder in addition; Finally work in-process and powder are mixed to rear uniform stirring 30 minutes, make finished product, and then with cell therefor, finished product is carried out to sealed packaging and deposit; In use, only need described slag separating agent be uniformly sprayed at ladle slag line and bag along position by corresponding equipment, requirement consumption is moderate, can not allow slag separating agent form ponding at the bottom of tank because overspray flows into, meanwhile, the ladle temperature being sprayed is at least greater than 500 DEG C, and red packet spraying effect is better, in addition, workmen also should carry out the correlative protection work under on-the-spot hot conditions.
Part not in the detailed description of the invention is prior art, therefore the present invention is not described in detail.
Claims (6)
1. a slag separating agent, it is characterized in that: described separating agent is made up of following compositions in weight percentage: waste magnesia carbon brick powder 30～50%, electrofusion magnesia powder 1～10%, useless graphite electrode powder 1～10%, dispersion agent 1～3%, bonding agent 10～15% and suspension agent 5～15%, its surplus is water; Wherein, waste magnesia carbon brick powder requires containing magnesium oxide > 75%, carbon > 12%, fineness 200 order all-pass mistakes; Electrofusion magnesia powder requires containing magnesium oxide > 97%, fineness 200 order all-pass mistakes; Useless graphite electrode powder requires carbon containing > 97%, fineness 200 order all-pass mistakes; Dispersion agent is aluminium hydroxide > 98%, fineness 200 order all-pass mistakes; Bonding agent is 85% phosphoric acid liquid; Suspension agent is silicon powder > 97%, fineness 500 order all-pass mistakes.
2. slag separating agent according to claim 1, it is characterized in that: described slag separating agent is made up of following compositions in weight percentage: waste magnesia carbon brick powder 35%, electrofusion magnesia powder 8%, useless graphite electrode powder 8%, dispersion agent 2%, bonding agent 12% and suspension agent 12%, its surplus is water.
3. slag separating agent according to claim 1, it is characterized in that: described slag separating agent is made up of following compositions in weight percentage: waste magnesia carbon brick powder 40%, electrofusion magnesia powder 5%, useless graphite electrode powder 5%, dispersion agent 3%, bonding agent 12% and suspension agent 12%, its surplus is water.
4. slag separating agent according to claim 1, it is characterized in that: described slag separating agent is made up of following compositions in weight percentage: waste magnesia carbon brick powder 45%, electrofusion magnesia powder 2%, useless graphite electrode powder 3%, dispersion agent 3%, bonding agent 12% and suspension agent 12%, its surplus is water.
5. according to the arbitrary described slag separating agent of claim 1～4, it is characterized in that: the magnesia carbon brick abrasive dust of pulling down when described waste magnesia carbon brick powder is repaired liner by ladle is made; The rejected material abrasive dust that described useless graphite electrode powder is dismantled to a certain extent time for the Graphite Electrodes loss that heats up by steel mill's refining furnace is made.
6. according to the arbitrary described slag separating agent of claim 1～4, it is characterized in that: described slag separating agent making method is as follows: first pour in corresponding tank and be heated to boiling in connection with agent, dispersion agent and water, make work in-process; Again waste magnesia carbon brick powder, electrofusion magnesia powder, useless graphite electrode powder and suspension agent are stirred and make powder in addition; Finally work in-process and powder are mixed to rear uniform stirring 25～35 minutes, make finished product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410084406.2A CN103936432A (en) | 2014-03-10 | 2014-03-10 | Steel slag separating agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410084406.2A CN103936432A (en) | 2014-03-10 | 2014-03-10 | Steel slag separating agent |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103936432A true CN103936432A (en) | 2014-07-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410084406.2A Withdrawn CN103936432A (en) | 2014-03-10 | 2014-03-10 | Steel slag separating agent |
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| CN (1) | CN103936432A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107382330A (en) * | 2017-06-23 | 2017-11-24 | 鞍山市和丰耐火材料有限公司 | A kind of production application process for the high life CAS OB impregnating covers for strengthening globality |
| CN110735017A (en) * | 2019-10-24 | 2020-01-31 | 郑州荣盛窑炉耐火材料有限公司 | slag-liquid separating agent for metallurgy and preparation method thereof |
| CN112457029A (en) * | 2020-12-08 | 2021-03-09 | 首钢集团有限公司 | Spray coating for slag pot grating and use method thereof |
| CN113307641A (en) * | 2021-06-22 | 2021-08-27 | 秦皇岛顺康科技有限公司 | Slag basin anti-sticking agent for smelting steel |
-
2014
- 2014-03-10 CN CN201410084406.2A patent/CN103936432A/en not_active Withdrawn
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107382330A (en) * | 2017-06-23 | 2017-11-24 | 鞍山市和丰耐火材料有限公司 | A kind of production application process for the high life CAS OB impregnating covers for strengthening globality |
| CN107382330B (en) * | 2017-06-23 | 2020-09-08 | 鞍山市和丰耐火材料有限公司 | Production and use method of long-life CAS-OB impregnation cover with integrity enhanced |
| CN110735017A (en) * | 2019-10-24 | 2020-01-31 | 郑州荣盛窑炉耐火材料有限公司 | slag-liquid separating agent for metallurgy and preparation method thereof |
| CN110735017B (en) * | 2019-10-24 | 2021-12-24 | 郑州荣盛窑炉耐火材料有限公司 | Slag-liquid separating agent for metallurgy and preparation method thereof |
| CN112457029A (en) * | 2020-12-08 | 2021-03-09 | 首钢集团有限公司 | Spray coating for slag pot grating and use method thereof |
| CN113307641A (en) * | 2021-06-22 | 2021-08-27 | 秦皇岛顺康科技有限公司 | Slag basin anti-sticking agent for smelting steel |
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| C06 | Publication | ||
| PB01 | Publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20140723 |
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| WW01 | Invention patent application withdrawn after publication |