CN107382339A - A kind of ladle gunning refractory and preparation method for adding titanium nitride - Google Patents
A kind of ladle gunning refractory and preparation method for adding titanium nitride Download PDFInfo
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- CN107382339A CN107382339A CN201710585803.1A CN201710585803A CN107382339A CN 107382339 A CN107382339 A CN 107382339A CN 201710585803 A CN201710585803 A CN 201710585803A CN 107382339 A CN107382339 A CN 107382339A
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- magnesia
- titanium nitride
- gunning refractory
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/66—Monolithic refractories or refractory mortars, including those whether or not containing clay
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- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Compositions Of Oxide Ceramics (AREA)
Abstract
The present invention relates to a kind of ladle gunning refractory and preparation method for adding titanium nitride, include the raw materials of following parts by weight：0 ＜ granularities≤1mm 25 52 parts of magnesia, 1 ＜ granularities≤3mm 25 52 parts of magnesia, 18 28 parts of the following magnesia of 200 mesh, 12 parts of titanium nitride, 0.5 5 parts of 50 cement of CA, 0.5 5 parts of bentonite, 18 parts of sodium metasilicate, 0.5 7 parts of modified pitch.Advantage is：It is aggregate from magnesia, titanium nitride increases gunning refractory erosion resisting, and using sodium metasilicate as bonding agent, the cement of CA 50 is accelerator for hardening, forms the gunning refractory with good inoxidizability and resistance to flaking, service life increases, good fluidity.
Description
Technical field
The present invention relates to a kind of ladle gunning refractory and preparation method for adding titanium nitride.
Background technology
In recent years, as China's steel-smelting technology has new development.First, in order to improve production efficiency, ladle is towards large-scale
Change direction to develop, more than 90 tons of ladle increases sharply；Second, to high-purity, high cleanliness steel quality requirement increasingly
Height, double refining handling rate of the molten steel in ladle are also increasing, and this is resulted in, and tapping temperature improves and molten steel is stagnant in ladle
The time lengthening stayed.These features all make the use condition of ladle harsher, and the damage of refractory material constantly expands, especially
Unbalanced deteriorate be present.In order to improve the service life of ladle, cost is reduced, mitigates labor strength, to for ladle office
Portion maintenance alkaline gunning refractory carry out deeply, systematic research it is imperative.
The content of the invention
For overcome the deficiencies in the prior art, it is an object of the invention to provide a kind of ladle gunning refractory and system for adding titanium nitride
Preparation Method, it is aggregate from magnesia, titanium nitride increases gunning refractory erosion resisting, and using sodium metasilicate as bonding agent, CA-50 cement is
Accelerator for hardening, formation have good inoxidizability and resistance to flaking, and service life increases, good fluidity.
To achieve the above object, the present invention is achieved through the following technical solutions：
A kind of ladle gunning refractory for adding titanium nitride, include the raw material of following parts by weight：0 ＜ granularities≤1mm magnesia
25-52 parts, 1 ＜ granularities≤3mm magnesia 25-52 parts, the following magnesia 18-28 parts of 200 mesh, titanium nitride 1-2 parts, CA-50 cement
0.5-5 parts, bentonite 0.5-5 parts, sodium metasilicate 1-8 parts, modified pitch 0.5-7 parts.
The physical and chemical index of described magnesia is：MgO >=91%, CaO≤2.0%, SiO2≤ 4.5%, Fe2O3≤ 1.1%,
Bulk density >=3.15g/cm3。
A kind of preparation method for the ladle gunning refractory for adding titanium nitride, specifically includes following steps：First by 0 ＜ granularities≤
1mm magnesia and 1 ＜ granularities≤3mm magnesia are dry-mixed to well mixed, then add titanium nitride, CA-50 cement, bentonite,
Sodium metasilicate, modified pitch, it is well mixed, is eventually adding the following magnesia of 200 mesh, is well mixed, then discharges.
Compared with prior art, the beneficial effects of the invention are as follows：
The ladle gunning refractory index for adding titanium nitride is as follows：MgO >=90%, Al2O3≤ 2, Fe2O3≤ 2, SiO2≤2；
1500 DEG C, bulk density is 2.2g/cm in the environment of being incubated 3h3, compressive resistance is 10MPa.The present invention is aggregate from magnesia,
Titanium nitride increases gunning refractory erosion resisting, and using sodium metasilicate as bonding agent, CA-50 cement is accelerator for hardening, is formed with good
The gunning refractory of inoxidizability and resistance to flaking, service life increase, good fluidity.
Embodiment
The present invention is described in detail below, it should be noted that the implementation of the present invention is not limited to following embodiment party
Formula.
A kind of ladle gunning refractory for adding titanium nitride, include the raw material of following parts by weight：0 ＜ granularities≤1mm magnesia
25-52 parts, 1 ＜ granularities≤3mm magnesia 25-52 parts, the following magnesia 18-28 parts of 200 mesh, titanium nitride 1-2 parts, CA-50 cement
0.5-5 parts, bentonite 0.5-5 parts, bonding agent；Bonding agent is sodium metasilicate 1-8 parts, modified pitch 0.5-7 parts.
The physical and chemical index of magnesia is：MgO >=91%, CaO≤2.0%, SiO2≤ 4.5%, Fe2O3≤ 1.1%, volume is close
Degree >=3.15g/cm3。
A kind of preparation method for the ladle gunning refractory for adding titanium nitride, specifically includes following steps：
1) each component is weighed according to above-mentioned parts by weight standby；
2) it is first that the magnesia of 0 ＜ granularities≤1mm magnesia and 1 ＜ granularities≤3mm is dry-mixed to well mixed, then add nitrogen
Change titanium, CA-50 cement, bentonite, sodium metasilicate, modified pitch, be well mixed, be eventually adding the following magnesia of 200 mesh, mixing is equal
It is even, then discharge.
Embodiment
The ladle gunning mix for adding titanium nitride is as shown in table 1.
Table 1 adds the ladle gunning mix (unit of titanium nitride：Part)
| Dispensing | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 |
| 1-3mm magnesia | 35 | 35 | 35 | 25 | 52 |
| 0-1mm magnesia | 35 | 35 | 35 | 25 | 52 |
| 200 mesh magnesia | 23 | 22 | 22 | 18 | 28 |
| Titanium nitride | 2 | 1.5 | 1 | 1 | 2 |
| Sodium metasilicate | 1 | 1.5 | 2 | 1.5 | 8 |
| Bentonite | 1.5 | 1.5 | 1.5 | 0.5 | 5 |
| CA-50 cement | 1.5 | 1.5 | 1.5 | 0.5 | 5 |
| Modified pitch | 1 | 2 | 2 | 0.5 | 7 |
Its preparation method of the ladle gunning refractory of embodiment 1-5 addition titanium nitride, comprises the following steps：
1) each component is weighed according to above-mentioned parts by weight standby；
2) it is extremely well mixed by 0 ＜ granularities≤1mm magnesia and the 1 ＜ granularities≤3mm dry-mixed 3min of magnesia, Ran Houjia
Enter titanium nitride, CA-50 cement, bentonite, sodium metasilicate, modified pitch, then mixed 3~5min, to uniform, the addition following magnesium of 200 mesh
Sand, 4~6min is mixed, to being well mixed, then discharged.
The ladle gunning refractory of addition titanium nitride has good inoxidizability and resistance to flaking compared with conventional gunning refractory, makes
Increased with the life-span, good fluidity；In certain steel mill's using effect clearly.
Claims (3)
1. a kind of ladle gunning refractory for adding titanium nitride, it is characterised in that include the raw material of following parts by weight：0 ＜ granularities≤
1mm magnesia 25-52 parts, 1 ＜ granularities≤3mm magnesia 25-52 parts, the following magnesia 18-28 parts of 200 mesh, titanium nitride 1-2 parts,
CA-50 cement 0.5-5 parts, bentonite 0.5-5 parts, sodium metasilicate 1-8 parts, modified pitch 0.5-7 parts.
A kind of 2. ladle gunning refractory for adding titanium nitride according to claim 1, it is characterised in that the reason of described magnesia
Changing index is：MgO >=91%, CaO≤2.0%, SiO2≤ 4.5%, Fe2O3≤ 1.1%, bulk density >=3.15g/cm3。
3. a kind of preparation method of the ladle gunning refractory of addition titanium nitride according to claim 1, it is characterised in that specific
Comprise the following steps：It is first that the magnesia of 0 ＜ granularities≤1mm magnesia and 1 ＜ granularities≤3mm is dry-mixed to well mixed, Ran Houjia
Enter titanium nitride, CA-50 cement, bentonite, sodium metasilicate, modified pitch, be well mixed, be eventually adding the following magnesia of 200 mesh, mix
Uniformly, then discharge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710585803.1A CN107382339A (en) | 2017-07-18 | 2017-07-18 | A kind of ladle gunning refractory and preparation method for adding titanium nitride |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710585803.1A CN107382339A (en) | 2017-07-18 | 2017-07-18 | A kind of ladle gunning refractory and preparation method for adding titanium nitride |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107382339A true CN107382339A (en) | 2017-11-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710585803.1A Pending CN107382339A (en) | 2017-07-18 | 2017-07-18 | A kind of ladle gunning refractory and preparation method for adding titanium nitride |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1844053A (en) * | 2006-04-27 | 2006-10-11 | 鞍山科技大学 | Magnesia brick containing antioxidant C-TiN composite powder and method for preparing the same |
| CN102584285A (en) * | 2012-01-31 | 2012-07-18 | 莱芜钢铁集团有限公司 | Magnesium-carbon material used for grate-layer material of rotary hearth furnaces and preparation method thereof |
| CN106518110A (en) * | 2016-11-03 | 2017-03-22 | 海城市中兴镁质合成材料有限公司 | Gunning mix using magnesia-calcium residual bricks as raw material and preparing method thereof |
| CN106966739A (en) * | 2017-04-01 | 2017-07-21 | 海城市中兴镁质合成材料有限公司 | A kind of RH gunning refractories of improvement |
-
2017
- 2017-07-18 CN CN201710585803.1A patent/CN107382339A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1844053A (en) * | 2006-04-27 | 2006-10-11 | 鞍山科技大学 | Magnesia brick containing antioxidant C-TiN composite powder and method for preparing the same |
| CN102584285A (en) * | 2012-01-31 | 2012-07-18 | 莱芜钢铁集团有限公司 | Magnesium-carbon material used for grate-layer material of rotary hearth furnaces and preparation method thereof |
| CN106518110A (en) * | 2016-11-03 | 2017-03-22 | 海城市中兴镁质合成材料有限公司 | Gunning mix using magnesia-calcium residual bricks as raw material and preparing method thereof |
| CN106966739A (en) * | 2017-04-01 | 2017-07-21 | 海城市中兴镁质合成材料有限公司 | A kind of RH gunning refractories of improvement |
Non-Patent Citations (1)
| Title |
|---|
| 徐娜等: "TiN提高镁碳砖抗渣侵蚀机理的研究", 《硅酸盐学报》 * |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 114206 Wang Jia village, eight Li Town, Haicheng City, Liaoning Province Applicant after: Haicheng Zhongxing Magnesia Synthetic Materials Co., Ltd. Applicant after: Haicheng Lear MEG Materials Co. Ltd. Sita Address before: 114206 Wangjia village, eight Li Town, Haicheng City, Liaoning Province, Anshan, Liaoning Applicant before: Haicheng Zhongxing Magnesia Synthetic Materials Co., Ltd. Applicant before: Haicheng Zhongxing High-Grade Magnesia Brick Co., Ltd. |
|
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171124 |