CN108752024A - A kind of slag ladle slag adhesion spray paint and its preparation and application - Google Patents
A kind of slag ladle slag adhesion spray paint and its preparation and application Download PDFInfo
- Publication number
- CN108752024A CN108752024A CN201810619348.7A CN201810619348A CN108752024A CN 108752024 A CN108752024 A CN 108752024A CN 201810619348 A CN201810619348 A CN 201810619348A CN 108752024 A CN108752024 A CN 108752024A
- Authority
- CN
- China
- Prior art keywords
- slag
- spray paint
- slag ladle
- adhesion spray
- raw material
- 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.)
- Pending
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Classifications
-
- 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
-
- 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
- C04B33/00—Clay-wares
- C04B33/02—Preparing or treating the raw materials individually or as batches
- C04B33/13—Compounding ingredients
- C04B33/132—Waste materials; Refuse; Residues
- C04B33/1324—Recycled material, e.g. tile dust, stone waste, spent refractory material
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/60—Production of ceramic materials or ceramic elements, e.g. substitution of clay or shale by alternative raw materials, e.g. ashes
Abstract
The invention discloses a kind of slag ladle slag adhesion spray paint and its preparation and application.The slag ladle slag adhesion spray paint, includes the raw material of following weight percent：Carbon containing fire resisting waste material 79~90%, bonding agent 6~17%, organic thickening agent 0.1~3%, water-reducing agent 0.2~2%；The weight percent summation of each raw material is 100%, and accounts for the water of each raw material weight summation 45~50%.Slag ladle slag adhesion spray paint disclosed by the invention, w (Al2O3) % contents are higher, 1720 DEG C of refractoriness >, anti-scour property is preferable, and slag ladle turns over tank number after primary spraying and can reach 3 times or more, compared with one time one spray of existing slag adhesion spray paint, improves live efficiency and extends slag ladle service life.
Description
Technical field
The invention belongs to technical field of refractory materials, and in particular to a kind of slag ladle slag adhesion spray paint and its preparation and use
Method.
Background technology
Numerous metallurgical equipments in steelmaking process in the actual production process, due to the splash adherency of high-temperature fusant or natural
Under the conditions of solidification bond, cause to adhere to the high-temperature fusant or viscous iron of the wall surface that contact with high-temperature fusant, steel bonding or dry slag, equipment
After dry slag, it is difficult to clear up, hand labor intensity is big.Therefore, converter sky slag ladle it is previous in slag as first carry out spray treatment, slag ladle
Inner wall and bottom spray slag adhesion spray paint, mainly prevent converter liquid slag and the molten steel of remnants from clinging slag ladle inner wall and making slag
Tank glues undeliverable telegram and gives up, and automatic turning tank.Slag ladle slag adhesion spray paint temperature in use is 1200~1400 DEG C, therefore it is required that slag ladle is anti-sticking
Slag spray paint slag resistance is good, not dry slag, and high temperature resistance is strong, and heat-resistant knocking stability is good, and resistance to flaking is good, has good workability,
And slag adhesion spraying slurry body stability is more than 48h.
The anti-sticking residue material one kind of slag ladle is mainly the cost using alumina, silicon carbide and bonding agent as primary raw material at present
It is higher；It is another kind of using calcium oxide, lime stone, forsterite as primary raw material, cost reduction is apparent but the service life generally only 1
It is secondary, and coating application performance is very poor.
Invention content
The purpose of the present invention is to provide a kind of slag ladle slag adhesion spray paints, with carbon containing fire resisting waste material, binder, You Jizeng
Thick dose, water-reducing agent be raw material, have the characteristics that refractoriness height, performance is stable, anti-scour property is excellent.
The present invention also aims to provide a kind of preparation method of slag ladle slag adhesion spray paint, the preparation method is simple,
And it can guarantee that slag ladle slag adhesion spray paint has good spraying property.
The present invention also aims to provide a kind of application method of slag ladle slag adhesion spray paint, application method limitation
It is smaller, it by spray paint direct spraying or can brush on 800 DEG C of slag ladle surfaces below, be turned over after once being sprayed using the coating slag ladle
Tank access times >=3 time.
A kind of slag ladle slag adhesion spray paint provided by the invention, includes the raw material of following weight percent：Carbon containing fire resisting is useless
Material 79~90%, bonding agent 6~17%, organic thickening agent 0.1~3%, water-reducing agent 0.2~2%；The weight percent of each raw material
Summation is 100%, and accounts for the water of each raw material weight summation 45~50%.
Further, it is preferable to be the raw material for including following weight percent：Carbon containing fire resisting waste material 79~90%, bonding agent 6
~17%, organic thickening agent 0.1~3%, sodium tripolyphosphate 0.1~1%, calgon 0.1~1%.The carbon containing fire resisting
Waste material is that give up brick or aluminum silicon carbide carbon of aluminium carbon gives up brick, Al in carbon containing fire resisting waste material2O3Content > 61%, such Al2O3Be conducive to
The refractoriness of spray paint is improved, and resistance to slag significant effect increases.
The granularity of the carbon containing fire resisting waste material is 120~300 mesh and/or 0mm ﹤ grain sizes≤1mm, by by carbon containing fire resisting
Waste material through drying, except iron, broken, fine grinding obtain, pass through and add 0~1mm of part into the carbon containing fire resisting waste material of 120~300 purposes
Aggregate can improve the resistance to slag corrosion of coating.
The bonding agent presses 5~25 by well as clay fines and dextrin:1~5 weight ratio mixes；By the way that clay is added,
Appropriate dextrine powder is added as plasticizer simultaneously, can improve the properties such as adhesive rate, caking property and the plasticity of spray paint.Institute
The well as clay fines stated is 180~300 mesh using Guangxi white clay or modified clay, granularity.
The organic thickening agent is one kind or two of sodium carboxymethylcellulose, hydroxyethyl cellulose or alkali swelling type thickener
Kind or more mixture.
The model ASE-60 of the alkali swelling type thickener.
The water-reducing agent is one or more kinds of mixing of sodium tripolyphosphate, calgon or polycarboxylate water-reducer
Object.
The present invention also provides the preparation methods of the slag ladle slag adhesion spray paint, include the following steps：By formula ratio
Each raw material mixing, it is 1.68~1.72g/cm to add water to adjust slurry density3.It is good attached that this density range can guarantee that coating has
Performance, if density is excessive, poor dispersion is not easy to spray；If density is too small, easily trickle, adhesion property is poor.
The present invention also provides the application methods of the slag ladle slag adhesion spray paint, and each raw material of formula ratio is mixed, is added
It is 1.68~1.72g/cm that water, which adjusts slurry density,3, slurry is sprayed or is brushed on 800 DEG C of slag ladle surfaces below, if spray
Temperature when applying or brushing is excessively high, then coating drying is very fast, cannot effectively and uniformly be adhered to slag ladle surface, steady so as to cause it
It is qualitative poor.The coating layer thickness of the slurry is 0.3~0.5mm, usage of sizing agent 0.4-0.8kg/m2.The coating of this thickness can
Ensure the slag adhesion effect of coating, if being easy peeling after overweight coating drying, falling off and improve cost.
Compared with prior art, the present invention has the following advantages：
1) slag ladle slag adhesion spray paint disclosed by the invention is primary raw material using carbon containing fire resisting waste material, and cost of material is low,
And refractoriness is more than 1720 DEG C, at high temperature, the counterbalance of coating is mutually high-melting-point phase, and operational layer brick and slag can be isolated
Contact, and be not easy to be dissolved by slag in itself；There is larger volume contraction under carbon containing fire resisting waste material high-temperature in itself and exhaust is anti-
It answers, therefore can fall off together with the slag for being adhered to its surface when its cooling, to have the function that slag adhesion.
2) present invention is used by well as clay fines and dextrin hydrous water, is had certain adhesive strength after the drying, is not easy
Fall off abrasion, can also be painted on the slag ladle surface within 800 DEG C and use.
3) present invention is by selecting sodium carboxymethylcellulose, hydroxyethyl cellulose or alkali swollen thickener to increase slurry
It is thick, prevent sagging phenomenon occur in construction, and improve the storage stability of slag adhesion spray paint slurry.
Slag ladle slag adhesion spray paint disclosed by the invention, w (Al2O3) % contents are higher, 1720 DEG C of refractoriness >, anti-slag is invaded
Better performances are lost, slag ladle turns over tank number after primary spraying and can reach 3 times or more, with one time one spray phase of existing slag adhesion spray paint
Than improving live efficiency and extending slag ladle service life.
Specific implementation mode
The following describes the present invention in detail with reference to examples.
Aluminium carbon according to the present invention give up brick, aluminum silicon carbide carbon give up brick discarded after the use of steel mill and iron-smelter it is resistance to
Fiery material can be roughly divided into sliding plate brick, fish torpedo ladle brick, continuous-casting three-main-product etc. by purposes.Al2O3C Bricks, aluminum silicon carbide brick warp after
Artificial sorting, dry, magnetic separation are crushed, obtain varigrained particulate material after ball milling and gradation sizing, are mixed in producing spray paint
Enter.
Embodiment 1
A kind of slag ladle slag adhesion spray paint, includes the raw material of following weight percent：The useless brick of the aluminium carbon of 0mm ﹤ grain sizes≤1mm
15%, granularity is the useless brick 70% of aluminium carbon of 120~300 mesh, and granularity is the well as clay fines 11% of 180~300 mesh, dextrin 1%, carboxylic
Sodium carboxymethylcellulose pyce 1%, alkali swollen thickener 1.5%, sodium tripolyphosphate 0.2%, calgon 0.3%；And it accounts for each
The water of raw material weight summation 45%.
The preparation method of the slag ladle slag adhesion spray paint is：It is constructed using flush coater, the raw material of above-mentioned formula ratio is used
Water mixes, and stirs evenly, and 45%, adjusting slurry density is 1.70kg/m for amount of water control3。
The application method of the slag ladle slag adhesion spray paint is：Slag ladle inner wall direct spraying this implementation within 800 DEG C
Slag ladle slag adhesion spray paint slurry in example, to form coating on slag ladle surface, the adhesion rate of coating is applied 97% or more
Layer thickness is 0.5mm.For slag ladle after using slag adhesion spray paint, no dry slag residual, slag ladle turns over tank number >=3 after primary spraying
It is secondary.
Embodiment 2
A kind of slag ladle slag adhesion spray paint, includes the raw material of following weight percent：The useless brick of the aluminium carbon of 0mm ﹤ grain sizes≤1mm
5%, granularity be 120~300 purpose carbon containing aluminium give up brick 85%, granularity be 180~300 mesh well as clay fines 6%, dextrin 0.4%,
Sodium carboxymethylcellulose 1%, alkali swollen thickener 2%, sodium tripolyphosphate 0.3%, calgon 0.3%；And it accounts for each
The water of raw material weight summation 50%.
The preparation method of the slag ladle slag adhesion spray paint is：It is constructed using flush coater, the raw material of above-mentioned formula ratio is used
Water mixes, and by amount of water control 50%, adjusting slurry density is 1.68kg/m3。
The application method of the slag ladle slag adhesion spray paint is：Slag ladle inner wall slag ladle inner-wall spraying sheet within 800 DEG C
Slag adhesion spray paint in embodiment, slag ladle surface form the linen protective coating of one layer of 0.4mm, and the adhesion rate of coating exists
95% or more.Slag ladle is after using slag adhesion spray paint, and no dry slag residual, using effect is preferable, and slag ladle turns over after primary spraying
Tank number >=3 time.
Embodiment 3
A kind of slag ladle slag adhesion spray paint, includes the raw material of following weight percent：The aluminium silicon carbide of 0mm ﹤ grain sizes≤1mm
Carbon gives up brick 10%, and granularity is that the aluminum silicon carbide carbon of 120~300 mesh gives up brick 71%, and granularity is the well as clay fines of 180~300 mesh
12%, dextrin 4%, sodium carboxymethylcellulose 0.6%, hydroxyethyl cellulose 1.0%, sodium tripolyphosphate 0.5%, calgon
0.9%；And account for the water of each raw material weight summation 48%.
The preparation method of the slag ladle slag adhesion spray paint is：It is constructed using flush coater, the raw material of above-mentioned formula ratio is used
Water mixes, and stirs evenly, and 48%, adjusting slurry density is 1.70kg/m for amount of water control3。
The application method of the slag ladle slag adhesion spray paint is：Slag ladle inner wall direct spraying this implementation within 800 DEG C
Slag ladle slag adhesion spray paint slurry in example, to form coating on slag ladle surface, the adhesion rate of coating is applied 96% or more
Layer thickness is 0.3mm.For slag ladle after using slag adhesion spray paint, no dry slag residual, slag ladle turns over tank number >=3 after primary spraying
It is secondary.
Embodiment 4
A kind of slag ladle slag adhesion spray paint, includes the raw material of following weight percent：The aluminium silicon carbide of 0mm ﹤ grain sizes≤1mm
Carbon gives up brick 23%, and granularity is that the aluminum silicon carbide carbon of 120~300 mesh gives up brick 62%, and granularity is the well as clay fines of 180~300 mesh
5%, dextrin 5%, sodium carboxymethylcellulose 1.0%, hydroxyethyl cellulose 1.0%, alkali swollen thickener 1.0%, tripolyphosphate
Sodium 1.0%, calgon 0.3%, polycarboxylate water-reducer 0.7%；And account for the water of each raw material weight summation 50%.
The preparation method of the slag ladle slag adhesion spray paint is：It is constructed using flush coater, the raw material of above-mentioned formula ratio is used
Water mixes, and stirs evenly, and 45%, adjusting slurry density is 1.72kg/m for amount of water control3。
The application method of the slag ladle slag adhesion spray paint is：Slag ladle inner wall direct spraying this implementation within 800 DEG C
Slag ladle slag adhesion spray paint slurry in example, to form coating on slag ladle surface, the adhesion rate of coating is applied 97% or more
Layer thickness is 0.5mm.For slag ladle after using slag adhesion spray paint, no dry slag residual, slag ladle turns over tank number >=3 after primary spraying
It is secondary.
A kind of above-mentioned detailed description that slag ladle slag adhesion spray paint and its preparation and application are carried out with reference to embodiment,
It is illustrative without being restrictive, several embodiments can be enumerated according to limited range, therefore do not departing from this hair
Change and modification under bright general plotting should belong within protection scope of the present invention.
Claims (10)
1. a kind of slag ladle slag adhesion spray paint, which is characterized in that include the raw material of following weight percent：Carbon containing fire resisting waste material 79
~90%, bonding agent 6~17%, organic thickening agent 0.1~3%, water-reducing agent 0.2~2%；The weight percent summation of each raw material
It is 100%, and accounts for the water of each raw material weight summation 45~50%.
2. slag ladle slag adhesion spray paint according to claim 1, which is characterized in that include the original of following weight percent
Material：Carbon containing fire resisting waste material 79~90%, bonding agent 6~17%, organic thickening agent 0.1~3%, sodium tripolyphosphate 0.1~1%,
Calgon 0.1~1%.
3. slag ladle slag adhesion spray paint according to claim 1 or 2, which is characterized in that the carbon containing fire resisting waste material is aluminium
Give up brick or aluminum silicon carbide carbon of carbon gives up brick, Al in carbon containing fire resisting waste material2O3Content > 61%.
4. slag ladle slag adhesion spray paint according to claim 3, which is characterized in that the granularity of the carbon containing fire resisting waste material is
120~300 mesh and/or 0mm ﹤ grain sizes≤1mm.
5. slag ladle slag adhesion spray paint according to claim 1 or 2, which is characterized in that the bonding agent is by well as clay fines
5~25 are pressed with dextrin:1~5 weight ratio mixes；The well as clay fines is using Guangxi white clay or modified clay, granularity
For 180~300 mesh.
6. slag ladle slag adhesion spray paint according to claim 1 or 2, which is characterized in that the organic thickening agent is carboxylic first
One or more kinds of mixtures of base sodium cellulosate, hydroxyethyl cellulose or alkali swelling type thickener.
7. slag ladle slag adhesion spray paint according to claim 6, which is characterized in that the model of the alkali swelling type thickener
For ASE-60.
8. slag ladle slag adhesion spray paint according to claim 1, which is characterized in that the water-reducing agent be sodium tripolyphosphate,
One or more kinds of mixtures of calgon or polycarboxylate water-reducer.
9. the preparation method of slag ladle slag adhesion spray paint according to claim 1 or 2, which is characterized in that including walking as follows
Suddenly：Each raw material of formula ratio is mixed, it is 1.68~1.72g/cm to add water to adjust slurry density3。
10. the application method of slag ladle slag adhesion spray paint according to claim 1 or 2, which is characterized in that by formula ratio
Each raw material mixing, it is 1.68~1.72g/cm to add water to adjust slurry density3, slurry is sprayed or is brushed in 800 DEG C of slags below
The coating layer thickness on tank surface, the slurry is 0.3~0.5mm, usage of sizing agent 0.4-0.8kg/m2。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810619348.7A CN108752024A (en) | 2018-06-15 | 2018-06-15 | A kind of slag ladle slag adhesion spray paint and its preparation and application |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810619348.7A CN108752024A (en) | 2018-06-15 | 2018-06-15 | A kind of slag ladle slag adhesion spray paint and its preparation and application |
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| CN108752024A true CN108752024A (en) | 2018-11-06 |
Family
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109369142A (en) * | 2018-12-04 | 2019-02-22 | 攀枝花钢城集团有限公司 | The anti-sticking spray paint of steel slag tank and its preparation and application |
| 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 |
| CN112695142A (en) * | 2020-12-09 | 2021-04-23 | 钢城集团凉山瑞海实业有限公司 | Method for preventing metallurgical slag pot from bonding |
| CN113293261A (en) * | 2021-04-13 | 2021-08-24 | 山西太钢不锈钢股份有限公司 | Method for efficiently cleaning accumulated scrap steel on top of RH vacuum tank |
| CN115477542A (en) * | 2022-09-30 | 2022-12-16 | 河南通宇冶材集团有限公司 | Spray coating, preparation method and application |
| CN115925396A (en) * | 2022-11-30 | 2023-04-07 | 钢城集团凉山瑞海实业有限公司 | Slag line repairing material for prolonging service life of magnesia carbon brick |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109369142A (en) * | 2018-12-04 | 2019-02-22 | 攀枝花钢城集团有限公司 | The anti-sticking spray paint of steel slag tank and its preparation and application |
| 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 |
| CN112695142A (en) * | 2020-12-09 | 2021-04-23 | 钢城集团凉山瑞海实业有限公司 | Method for preventing metallurgical slag pot from bonding |
| CN113293261A (en) * | 2021-04-13 | 2021-08-24 | 山西太钢不锈钢股份有限公司 | Method for efficiently cleaning accumulated scrap steel on top of RH vacuum tank |
| CN115477542A (en) * | 2022-09-30 | 2022-12-16 | 河南通宇冶材集团有限公司 | Spray coating, preparation method and application |
| CN115925396A (en) * | 2022-11-30 | 2023-04-07 | 钢城集团凉山瑞海实业有限公司 | Slag line repairing material for prolonging service life of magnesia carbon brick |
| CN115925396B (en) * | 2022-11-30 | 2023-10-10 | 钢城集团凉山瑞海实业有限公司 | Slag line repairing material for prolonging service life of magnesia carbon brick |
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Application publication date: 20181106 |