CN109133882A - A kind of ladle liner ceramic welding material and its preparation method and application - Google Patents
A kind of ladle liner ceramic welding material and its preparation method and application Download PDFInfo
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- CN109133882A CN109133882A CN201811258032.6A CN201811258032A CN109133882A CN 109133882 A CN109133882 A CN 109133882A CN 201811258032 A CN201811258032 A CN 201811258032A CN 109133882 A CN109133882 A CN 109133882A
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- ladle
- fine powder
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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
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/10—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on aluminium oxide
- C04B35/101—Refractories from grain sized mixtures
-
- 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
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3205—Alkaline earth oxides or oxide forming salts thereof, e.g. beryllium oxide
- C04B2235/3206—Magnesium oxides or oxide-forming salts thereof
-
- 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
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3231—Refractory metal oxides, their mixed metal oxides, or oxide-forming salts thereof
- C04B2235/3232—Titanium oxides or titanates, e.g. rutile or anatase
- C04B2235/3234—Titanates, not containing zirconia
- C04B2235/3236—Alkaline earth titanates
-
- 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
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
- C04B2235/96—Properties of ceramic products, e.g. mechanical properties such as strength, toughness, wear resistance
- C04B2235/9607—Thermal properties, e.g. thermal expansion coefficient
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
Abstract
A kind of ladle liner ceramic welding material and its preparation method and application, it is therefore an objective to which the direct old working lining of spray repair ladle, which meets, quickly builds by laying needs；The present invention is comprising following component and its using part as the proportion of mass unit: 0-80 parts of alundum fine powder, 0-80 parts of fused white corundum fine powder, and 0-10 parts of fused magnesite, 0-20 parts of electric smelting spinelle fine powder, 0-20 parts of vitrified bond；The vitrified bond is comprising following component and its using part as the proportion of mass unit: 0-20 parts of pure calcium aluminate cement, 0-20 parts of alumina powder, and 0-10 parts of titanium calcium aluminate fine powder；Various raw materials are mixed and added into vitrified bond, stir evenly in forced mixer obtained；Its application is after ladle use to ordinary life, using the direct spray repair of refractory material sprayer on ladle liner surface.
Description
Technical field
The invention belongs to fire resisting material fields, and in particular to a kind of ladle liner ceramic welding material and preparation method thereof and
It is applied.
Background technique
With being continuously increased to various fine steel grade demands, iron and steel smelting technology personnel are to various refractory materials in metallurgy
The carburetting problem of steel grade is paid attention to further in technical process, it is desirable that subtract as far as possible in smelting low carbon fine steel grade technical process
The use of few carbon containing refractory is to molten steel recarburization adverse effect.The technique of clean steel can be described as to molten steel decarburization
With the process for substantially reducing the impurity elements such as O, S, N, P, H.The development of mild steel, ultra-low-carbon steel, corresponding requirements develop low-carbon or
Carbon-free refractories.For this purpose, adapting to the needs of ladle turnover, most steel mill to reduce pollution of the carbon containing refractory to molten steel
It is required that bottom of steel ladle castable or carbon free precast block, containment wall is built using carbon free precast block or carbon-free pressed machine brick.But no matter
Using prefabricated section or carbon-free pressed machine brick, ladle life is not generally high, while fabrication cycle is generally longer.Therefore research is able to satisfy steel
The Carbon-free refractories of factory's fast pace production are the task of top priority of current fire resisting material field.It is resistance to due to serious environmental problem
Fiery material enterprise not only will thoroughly prevent the public hazards of refractory material, should also make great efforts the generation for seeking to control trade waste, these
All it is refractory material manufacturer and the problem of steel users cannot avoid.Therefore how research reduces the generation of industrial refuse, this
It is a difficult problem put in face of refractory material enterprise and iron and steel enterprise.Currently, China's steel industry has evolved to production capacity mistake
Stage surplus, profit margin is narrow；Meanwhile as the implementation of national environmental protection policy puts more effort, the raw material for refractory market price
It jumps up, how to reduce refractory material production cost and steel-making cost, this is that refractory material enterprise and iron and steel enterprise are common
The topic of care.Each iron and steel enterprise all removes remaining residual brick after ladle use to certain service life, then builds again
Build new working lining.On the one hand this method removed old working lining and build new working lining again generates a large amount of industrial rubbish
Rubbish, another aspect result in waste of resources.It is straight in old liner body by new technology engagement means if not removing old working lining
One layer of refractory material of spray repair is connect, temperature when being used using ladle welds together new and old working lining organically, is bound in this way
The service life of ladle is greatly improved, while can realize being recycled for multiple times for ladle working lining, reduces the consumption of refractory material,
Cost is reduced, the generation of industrial refuse is reduced.
Summary of the invention
The purpose of the present invention is overcoming the shortcomings of above-mentioned prior art, provide one kind can directly the old working lining of spray repair ladle,
Meet the ladle liner ceramic welding material and preparation method thereof for quickly building by laying ladle needs.This method, which has, reduces industrial refuse
It generates, protects environment, improves working efficiency, reducing that cost, ladle durability are good, do not pollute the advantages that molten steel.
Ladle liner ceramic welding material of the present invention, comprising following component and its using part as the proportion of mass unit: sintering
0-80 parts of corundum fine powder, 0-80 parts of fused white corundum fine powder, 0-10 parts of fused magnesite, 0-20 parts of electric smelting spinelle fine powder, ceramics
0-20 parts of bonding agent；The vitrified bond is comprising following component and its using part as the proportion of mass unit: pure calcium aluminate water
0-20 parts of mud, 0-20 parts of alumina powder, 0-10 parts of titanium calcium aluminate fine powder.
The mass percent of the alundum fine powder variable grain partial size are as follows: 10-90% is accounted between partial size 1-3mm,
10-90% is accounted between partial size 0-1mm, various partial sizes add up to 100%.
The fused white corundum powder particle size is 0-0.044mm, and parts by weight are 0-80 parts.
The mass percent of the fused magnesite different-grain diameter are as follows: partial size 1-3mm's accounts for 0-60%；0.075-1mm's accounts for 0-
60%；The fine powder of 0-0.075mm accounts for 0-60%, adds up to 100%.
The electric smelting spinelle fine powder, granularity 0-0.044mm, preferred weight number are 0-10 parts.
The Al of the alundum fine powder2O3Content is 97%-99.8%；The Al of the fused white corundum2O3Content is 95%-
99.0%；Content of MgO is 95%-98% in the fused magnesite；Al in the electric smelting spinelle fine powder2O3Content is 70%-
80%, content of MgO 20%-30%.
The preparation method of ladle liner ceramic welding material of the present invention is: with alundum fine powder, fused white corundum fine powder,
Fused magnesite, electric smelting spinelle fine powder are primary raw material, and vitrified bond is added, stirs evenly in forced mixer.Pottery
Porcelain bonding agent is using alumina powder, titanium calcium aluminate fine powder, pure calcium aluminate cement as raw material, using corundum ball as medium, in ball mill
In be blended.
The application of ladle liner ceramic welding material of the present invention is not removed on ladle after ladle use to ordinary life
Old working lining or conversion zone, does not also install mold, using sprayer that above-mentioned ladle liner is ceramic under ladle normal temperature state
On the surface of ladle liner, spray repair thickness degree+residual liner thickness degree of working lining is no more than former new job contract and makees the uniform spray repair of welding material
Liner thickness degree is continued to use in this, as new working lining.100 parts of quality of ladle liner ceramic welding material are taken, then take pure water
After 10 parts of mass mixings are uniform, new working lining is formed to the residual lining of ladle by the uniform spray repair of sprayer.
The present invention is one layer of new refractory material in spray repair directly on old working lining, utilizes the Ultramicro-powder in new material
Vitrified bond passes through chemical reaction at high operating temperatures and organically welds together new and old working lining.Due to introducing ultra micro
Powder vitrified bond is combined, in the use of ladle under room temperature or low-temperature condition by the aluminous cement in vitrified bond
The temperature (high temperature) of ladle itself is utilized in the process, and aluminium oxide and fused magnesite are in sintering aid (ceramic junction in vitrified bond
Titanium calcium aluminate in mixture) under the action of by chemical reaction formed self-bonding, so no matter in low temperature or in the condition of high temperature
Under, successfully new, old working lining can be linked together.
Ladle liner ceramic welding material is directly sprayed onto the old working lining of ladle by refractory material sprayer by the present invention
It is upper to form new working lining, the needs for quickly building by laying ladle can be met.Due to not needing to remove old working lining, greatly reduce
The generation of industrial refuse, protects environment, improves work efficiency；Since old working lining is recycled, it is equivalent to each furnace
Labour saves the working lining brick of 1/3-1/4, to effectively reduce cost.Discharge is few, meets the demand for development of national low-carbon economy；
Refractory consumption is reduced, save the cost achievees the purpose that and partner's win-win.A new ladle was built by laying using conventional method in the past
Liner takes around 24 hours, and is only needed 12 hours using the time that the method for the present invention builds by laying a ladle liner, working efficiency
Promote about 50%.And compared with former bricking ladle, there is same durability；Of the invention using being used on carbon-free brick foundation
Technology can significantly promote ladle life；Due to not carbon containing in system of the present invention, molten steel recarburization will not be caused, while using high
Pure synthesis material will not pollute molten steel.
Specific embodiment
Embodiment 1:
Materials'use of the present invention is wrapped in 180 tons of carbon-free steels of certain steel mill: ladle liner ceramic welding material is with mass unit number
It is calculated as: taking Al2O327 parts, 25 parts of 0-1mm of the alundum fine powder 1-3mm that content is 99.2%；Taking content of MgO is 97.5%
3 parts, 4 parts of 0.075-1mm of fused magnesite 1-3mm；Taking content of MgO is that the fused magnesite that 97% granularity is 0-0.074mm is thin
3 parts of powder；Take Al2O3Content is 8 parts of white fused alumina fine powder that 98.5% granularity is 0-0.044mm, and taking granularity is the electric smelting of 0-0.044mm
10 parts of spinelle fine powder；Take 20 parts of vitrified bond: wherein 7 parts of aluminous cement, Al2O3Content is that 99.8% partial size is 3um's
10 parts of activated alumina, partial size is 3 parts of the titanium calcium aluminate fine powder of 0-0.074mm.Steel is uniformly mixed to obtain in forced mixer
Ladle-lining ceramic welding material.
100 parts of quality of ladle liner ceramic welding material are taken, then after taking 10 parts of mass mixings of pure water uniform, pass through spray repair
The uniform spray repair of machine forms new working lining to the residual lining of ladle.
Embodiment 2:
Materials'use of the present invention is wrapped in 260 tons of carbon-free steels of certain steel mill: ladle liner ceramic welding material is with mass unit part
Number is calculated as: taking Al2O330 parts, 25 parts of 0-1mm of the alundum 1-3mm that content is 99.2%；Taking content of MgO is 97% granularity
It is 3 parts of fused magnesite fine powder of 0-0.075mm；The content of MgO of 0.075-1mm is 4 parts of fused magnesite of 97.5%；Take Al2O3Contain
Amount is the white fused alumina 10% that 98.5% granularity is 0-0.044mm, and taking granularity is 8 parts of the electric smelting spinelle fine powder of 0-0.044mm, takes pottery
20 parts of porcelain bonding agent: wherein 7 parts of aluminous cement, Al2O3Content is 10 parts of activated alumina that 99.8% partial size is 3um, partial size
For 3 parts of the titanium calcium aluminate fine powder of 0-0.074mm.Ladle liner ceramic welding material is uniformly mixed to obtain in forced mixer.
100 parts of ladle liner ceramic welding material is taken, then fetches water 10 parts after mixing, is arrived by the uniform spray repair of sprayer
The residual lining of ladle forms new working lining.
Embodiment 3
Material of the present invention wraps use in 300 tons of carbon-free steels of certain steel mill: ladle liner ceramic welding material is with mass unit number
Meter: Al is taken2O327 parts, 20 parts of 0-1mm of the alundum 1-3mm that content is 99.2%；Taking content of MgO is 97.5% electric smelting
3 parts of magnesia 1-3mm, 5 parts of 0-1mm, taking content of MgO is 97% granularity be 0-0.075mm 3 parts of fused magnesite fine powder；It takes
Al2O3Content is the white fused alumina 14% that 98.5% granularity is 0-0.044mm, and taking granularity is the electric smelting spinelle fine powder 8 of 0-0.044mm
Part, take 20 parts of vitrified bond: wherein 7 parts of aluminous cement, Al2O3Content is the activated alumina 10 that 99.8% partial size is 3um
Part, partial size is 3 parts of the titanium calcium aluminate fine powder of 0-0.074mm.The weldering of ladle liner ceramics is uniformly mixed to obtain in forced mixer
Connect material.
100 parts of ladle liner ceramic welding material is taken, then fetches water 10 parts after mixing, is arrived by the uniform spray repair of sprayer
The residual lining of ladle forms new working lining.
Due to smelting in different steel mills, steel grade is different, and used smelting mode, smelting temperature be not also identical, steel slag pair
Erosion degree, the erosion pattern of this ladle liner ceramic welding material are also different, therefore, should be right according to the actual situation on site
Inventive formulation does adjustment appropriate.
The embodiment of the present invention and former bricking ladle compare:
As can be seen from the above table, applied compared with tradition is without the carbon brick bricking service life using material of the present invention and its spray repair, have with
Lower superiority: ladle life improves 106%；It builds according to original and reaches without carbon brick bricking technique after same equivalent life and using this
Inventive technique is compared, and material consumption has fallen 30% on a year-on-year basis；Use cost has dropped 26.5%；Residual lining, work are removed after using
Industry rubbish reduces by 50%；From building from the time, working efficiency improves 50%；In terms of baking time, the decline of steel mill's gas consumption
66.7%, a large amount of coal gas expense is saved for steel mill, while improving the turnover rate of ladle；In terms of the production cycle, plant produced section
Play obvious quickening, improving productivity 88.9%.
Claims (9)
1. a kind of ladle liner ceramic welding material, it is characterized in that comprising following component and its using part as the proportion of mass unit:
0-80 parts of alundum fine powder, 0-80 parts of fused white corundum fine powder, 0-10 parts of fused magnesite, 0-20 parts of electric smelting spinelle fine powder,
0-20 parts of vitrified bond；The vitrified bond is comprising following component and its using part as the proportion of mass unit: fine aluminium acid
0-20 parts of calcium cement, 0-20 parts of alumina powder, 0-10 parts of titanium calcium aluminate fine powder.
2. ladle liner ceramic welding material as described in claim 1, it is characterized in that the alundum fine powder different
The mass percent of grain partial size are as follows: account for 10-90% between partial size 1-3mm, account for 10-90% between partial size 0-1mm, add up to
100%。
3. ladle liner ceramic welding material as claimed in claim 1 or 2, it is characterized in that the fused white corundum fine powder
Granularity is 0-0.044mm.
4. ladle liner ceramic welding material as claimed in claim 1 or 2, it is characterized in that difference contained by the fused magnesite
The mass percent of partial size are as follows: partial size 1-3mm's accounts for 0-60%, and 0-0.075-1mm's accounts for 0-60%, and the fine powder of 0-0.075mm accounts for
0-60%；The fused magnesite of above-mentioned various partial sizes total 100%.
5. ladle liner ceramic welding material as claimed in claim 1 or 2, it is characterized in that the electric smelting spinelle fine powder
Granularity is 0-0.044mm, and parts by weight are 0-10 parts.
6. ladle liner ceramic welding material as claimed in claim 1 or 2, it is characterized in that the Al of the alundum fine powder2O3
Content is 97%-99.8%；The Al of the fused white corundum fine powder2O3Content is 95%-99.0%；MgO contains in the fused magnesite
Amount is 95%-98%；Al in the electric smelting spinelle fine powder2O3Content is 70%-80%, content of MgO 20%-30%.
7. the preparation method of ladle liner ceramic welding material as described in claim 1, it is characterized in that various raw materials mix and add
Enter vitrified bond, is stirred evenly in forced mixer obtained.
8. the application of ladle liner ceramic welding material as claimed in claim 1 or 2, it is characterized in that in ladle use to normal
After service life, working lining or conversion zone old on ladle not being removed, does not install mold, refractory material is utilized under ladle normal temperature state
Sprayer by the above-mentioned uniform spray repair of ladle liner ceramic welding material on the surface of ladle liner, spray repair thickness degree+working lining
Residual liner thickness degree is no more than former new job contract and makees liner thickness degree, continues to use in this, as new working lining.
9. the application of ladle liner ceramic welding material as claimed in claim 8, it is characterized in that taking ladle liner ceramic welding
After 100 parts of quality of material add 10 parts of mass mixings of pure water uniform, pass through the uniform spray repair of refractory material sprayer to the residual lining of ladle
It is upper to form new working lining.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811258032.6A CN109133882A (en) | 2018-10-26 | 2018-10-26 | A kind of ladle liner ceramic welding material and its preparation method and application |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811258032.6A CN109133882A (en) | 2018-10-26 | 2018-10-26 | A kind of ladle liner ceramic welding material and its preparation method and application |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110228997A (en) * | 2019-07-11 | 2019-09-13 | 武汉重远炉窑工程技术服务有限公司 | A kind of mullite ceramic welding material |
| CN113292296A (en) * | 2021-03-29 | 2021-08-24 | 宜兴市海科窑炉工程有限公司 | Special rapid self-solidifying high-temperature bonding agent for refractory material and preparation process thereof |
| CN115650747A (en) * | 2022-11-16 | 2023-01-31 | 鞍山钢铁冶金炉材科技有限公司 | Magnesia-hercynite ladle wall gunning mix and preparation method thereof |
| CN115893995A (en) * | 2022-12-06 | 2023-04-04 | 郑州银河耐火材料有限公司 | Efficient anti-erosion steel ladle gunning material and preparation method thereof |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110228997A (en) * | 2019-07-11 | 2019-09-13 | 武汉重远炉窑工程技术服务有限公司 | A kind of mullite ceramic welding material |
| CN110228997B (en) * | 2019-07-11 | 2021-08-20 | 武汉重远炉窑工程技术服务有限公司 | Mullite ceramic welding material |
| CN113292296A (en) * | 2021-03-29 | 2021-08-24 | 宜兴市海科窑炉工程有限公司 | Special rapid self-solidifying high-temperature bonding agent for refractory material and preparation process thereof |
| CN115650747A (en) * | 2022-11-16 | 2023-01-31 | 鞍山钢铁冶金炉材科技有限公司 | Magnesia-hercynite ladle wall gunning mix and preparation method thereof |
| CN115650747B (en) * | 2022-11-16 | 2023-12-15 | 鞍山钢铁冶金炉材科技有限公司 | Magnesia-hercynite steel ladle wall gunning material and preparation method thereof |
| CN115893995A (en) * | 2022-12-06 | 2023-04-04 | 郑州银河耐火材料有限公司 | Efficient anti-erosion steel ladle gunning material and preparation method thereof |
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