CN107285788A - A kind of acid/alkali-corrosion-resistant castable - Google Patents
A kind of acid/alkali-corrosion-resistant castable Download PDFInfo
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- CN107285788A CN107285788A CN201710653085.7A CN201710653085A CN107285788A CN 107285788 A CN107285788 A CN 107285788A CN 201710653085 A CN201710653085 A CN 201710653085A CN 107285788 A CN107285788 A CN 107285788A
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- Prior art keywords
- corrosion
- castable
- alkali
- acid
- quartz sand
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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
Abstract
The invention provides a kind of acid/alkali-corrosion-resistant castable, include the composition of following percentage by weight：Carborundum 20 40%, kaolin 30 45%, corundum 4 10%, pure calcium aluminate cement 3 8%, cesium oxide 0.02 0.05%, manganese slag 3 8%, superfine quartz sand 0.1 0.3% and magnesia surplus.The acid/alkali-corrosion-resistant castable of the present invention, cesium oxide, manganese slag and superfine quartz sand are added on the basis of traditional castable refractory, wherein cesium oxide primarily serves reduction smelting temperature, lift the effect of magnesia and corundum reaction effect, it may advantageously facilitate castable formation magnesia-alumina spinel structure, not only fire resistance is good, and antiseptic effect is also fine；And hardness and intensity that manganese slag is conducive to improving castable are added, strengthen anticorrosion effect；And superfine quartz sand is added, its mobility is mainly used, the dispersion effect of castable is improved, so as to improve the integraty of refractory material.
Description
Technical field
The present invention relates to technical field of refractory materials, especially, it is related to a kind of acid/alkali-corrosion-resistant castable.
Background technology
Corrosion refers to metal material and the works being made up of them, in natural environment or under working condition,
Go bad caused by occurring chemistry or electrochemical action with its local environment medium and destroy.The type of corrosion has web rot
Erosion, dry corrosion, local corrosion, species are divided into hydrogen-type corrosion, erosion corrosion, selective corrosion, spot corrosion etc..
Corrosion, wherein also including above-mentioned factor and mechanics factor or the collective effect of biological factor.Some physical actions
Physical dissolution phenomenon of such as metal material in some liquid metals can also be included into metal erosion category.In general, raw
Rust is referred exclusively to for steel and ferrous alloy, and they form the main corrosion being made up of hydrous ferric oxide in the presence of oxygen and water
Product iron rust.Corrosion but simultaneously non-corrosive can occur for non ferrous metal and their alloy, but form the corrosion product similar to iron rust,
Such as the verdigris on copper and copper alloy surface, patina is also referred to as by people once in a while.
On corroding the definition for also having some other forms with metal erosion.Returned again after being corroded due to metal and alloy
The compound state of ore has been arrived again, so metal erosion could also say that the inverse process of smelting process.Above-mentioned definition is not only fitted
For metal material, it can also broadly be applied to the nonmetallic materials such as plastics, ceramics, concrete and timber.For example, coating and
Rubber causes rotten due to the effect of sunlight or chemical substance, and the fusing of lining of steel-smelting furnace and a kind of metal are by another metal
Fused solution metal erosion, the result of these processes belongs to material corrosion, and this is a kind of definition of broad sense.Metal and its alloy
So far most important structural material is still acknowledged as, so one of the problem of metal erosion turns into most noticeable naturally.
The form species of corrosion failure is a lot, and the reason for metal erosion is caused under difficult environmental conditions is not quite similar, and influence because
Element is also extremely complex.In order to prevent and slow down corrosion failure and its damage, by changing some action conditions and influence factor and
Block and control corrosion rate process, the method thus developed, technology and corresponding engineering construction turn into anticorrosion engineering technology.
Incinerator is a kind of by waste gas, waste liquid, solid waste：Example, toxic gas（Paint tail gas）, poisonous rocket liquid
Fuel, medical waste, life waste product, spoil etc. carry out high temperature incineration, reach and quantify one kind environmental protection that number is reduced or reduced
Equipment, while reaching a kind of product for the heat energy that medium is burned using part.
Incinerator refractory brick is in addition to the high temperature resistant required for traditional refractory brick, heat-proof quality, to the resistance to of refractory brick
Acid and alkali corrosion performance also has higher requirement.
Castable is also known as castable refractory, is a kind of to add the granular and powdery that a certain amount of bonding agent is made by refractory material
Material, with compared with high fluidity, the unshape refractory being molded with pouring type.
Compared with other unshape refractories, bonding agent and moisture are higher, and mobility is preferable, so castable should
It is wider with scope, material used and bonding agent can be selected according to use condition.Both it can directly pour into liner body to use, again
Prefabricated section can be made and is used with cast or bumping method.
Therefore the invention provides a kind of acid/alkali-corrosion-resistant castable, for thering is acid/alkali-corrosion-resistant requirement to set incinerator etc.
It is standby the process such as to be repaired, sealed.
The content of the invention
Present invention aims at a kind of acid/alkali-corrosion-resistant castable is provided, to solve technical problem.
A kind of acid/alkali-corrosion-resistant castable, includes the composition of following percentage by weight：
Carborundum 20-40%
Kaolin 30-45%
Corundum 4-10%
Pure calcium aluminate cement 3-8%
Cesium oxide 0.02-0.05%
Manganese slag 3-8%
Superfine quartz sand 0.1-0.3%
Magnesia surplus.
It is preferred that, in described kaolin, SiO2Content >=40%, Al2O3Content >=30%.
It is preferred that, described corundum is plate diamond spar.
It is preferred that, the particle diameter of described superfine quartz sand is 50-100 μm.
It is preferred that, content >=38% of manganese in described manganese slag.
The invention has the advantages that：The acid/alkali-corrosion-resistant castable of the present invention, in traditional castable refractory
On the basis of add cesium oxide, manganese slag and superfine quartz sand, wherein cesium oxide primarily serves reduction smelting temperature, lifting magnesia and
The effect of corundum reaction effect, may advantageously facilitate castable formation magnesia-alumina spinel structure, not only fire resistance is good, and anti-corrosion
Effect is also fine；And hardness and intensity that manganese slag is conducive to improving castable are added, strengthen anticorrosion effect；And add ultra-fine stone
Sand, mainly uses its mobility, the dispersion effect of castable is improved, so as to improve the integraty of refractory material.
In addition to objects, features and advantages described above, the present invention also has other objects, features and advantages.
The present invention is further detailed explanation below.
Embodiment
Embodiments of the invention are described in detail below, but the present invention can be limited and covered according to claim
Multitude of different ways implement.
Embodiment 1
A kind of acid/alkali-corrosion-resistant castable, includes the composition of following percentage by weight：
Carborundum 35%
Kaolin 38%
Corundum 6%
Pure calcium aluminate cement 5%
Cesium oxide 0.03%
Manganese slag 5%
Superfine quartz sand 0.2%
Magnesia surplus.
In described kaolin, SiO2Content >=40%, Al2O3Content >=30%.
Described corundum is plate diamond spar.
The particle diameter of described superfine quartz sand is 50-100 μm.
Content >=38% of manganese in described manganese slag.
Embodiment 2
A kind of acid/alkali-corrosion-resistant castable, includes the composition of following percentage by weight：
Carborundum 40%
Kaolin 35%
Corundum 10%
Pure calcium aluminate cement 5%
Cesium oxide 0.03%
Manganese slag 4%
Superfine quartz sand 0.2%
Magnesia surplus.
In described kaolin, SiO2Content >=40%, Al2O3Content >=30%.
Described corundum is plate diamond spar.
The particle diameter of described superfine quartz sand is 50-100 μm.
Content >=38% of manganese in described manganese slag.
Embodiment 3
A kind of acid/alkali-corrosion-resistant castable, includes the composition of following percentage by weight：
Carborundum 20%
Kaolin 40%
Corundum 4%
Pure calcium aluminate cement 7%
Cesium oxide 0.02%
Manganese slag 7%
Superfine quartz sand 0.1%
Magnesia surplus.
In described kaolin, SiO2Content >=40%, Al2O3Content >=30%.
Described corundum is plate diamond spar.
The particle diameter of described superfine quartz sand is 50-100 μm.
Content >=38% of manganese in described manganese slag.
Embodiment 4
A kind of acid/alkali-corrosion-resistant castable, includes the composition of following percentage by weight：
Carborundum 40%
Kaolin 30%
Corundum 10%
Pure calcium aluminate cement 3%
Cesium oxide 0.05%
Manganese slag 3%
Superfine quartz sand 0.3%
Magnesia surplus.
In described kaolin, SiO2Content >=40%, Al2O3Content >=30%.
Described corundum is plate diamond spar.
The particle diameter of described superfine quartz sand is 50-100 μm.
Content >=38% of manganese in described manganese slag.
Embodiment 5
A kind of acid/alkali-corrosion-resistant castable, includes the composition of following percentage by weight：
Carborundum 20%
Kaolin 35%
Corundum 10%
Pure calcium aluminate cement 7%
Cesium oxide 0.04%
Manganese slag 5%
Superfine quartz sand 0.2%
Magnesia surplus.
In described kaolin, SiO2Content >=40%, Al2O3Content >=30%.
Described corundum is plate diamond spar.
The particle diameter of described superfine quartz sand is 50-100 μm.
Content >=38% of manganese in described manganese slag.
Embodiment 1-5 sample detect and obtains following data：
The detection data of the embodiment 1-5 of table 1 sample.
Comparative example 1
Cesium oxide in embodiment 1 is removed, remaining proportioning and preparation condition are constant.
After testing, the sample in comparative example 1, compared to the sample of embodiment 1, refractoriness reduction by 12.8% is especially acidproof
Alkalescence can be significantly reduced, 10% sulfuric acid immersion 24h, and weight loss reaches 5.8%, and 10% soaking with sodium hydroxide 24h, weight loss
Reach 2.4%.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.Within the spirit and principles of the invention, that is made any repaiies
Change, equivalent substitution, improvement etc., should be included in the scope of the protection.
Claims (6)
1. a kind of acid/alkali-corrosion-resistant castable, it is characterised in that include the composition of following percentage by weight：
Carborundum 20-40%
Kaolin 30-45%
Corundum 4-10%
Pure calcium aluminate cement 3-8%
Cesium oxide 0.02-0.05%
Manganese slag 3-8%
Superfine quartz sand 0.1-0.3%
Magnesia surplus.
2. acid/alkali-corrosion-resistant castable as claimed in claim 1, it is characterised in that include the composition of following percentage by weight：
Carborundum 35%
Kaolin 38%
Corundum 6%
Pure calcium aluminate cement 5%
Cesium oxide 0.03%
Manganese slag 5%
Superfine quartz sand 0.2%
Magnesia surplus.
3. acid/alkali-corrosion-resistant castable as claimed in claim 1 or 2, it is characterised in that in described kaolin, SiO2Content
>=40%, Al2O3Content >=30%.
4. acid/alkali-corrosion-resistant castable as claimed in claim 1 or 2, it is characterised in that described corundum is plate diamond spar.
5. acid/alkali-corrosion-resistant castable as claimed in claim 1 or 2, it is characterised in that the particle diameter of described superfine quartz sand
For 50-100 μm.
6. acid/alkali-corrosion-resistant castable as claimed in claim 1 or 2, it is characterised in that the content of manganese in described manganese slag >=
38%。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710653085.7A CN107285788B (en) | 2017-08-02 | 2017-08-02 | Acid-base corrosion-resistant castable |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710653085.7A CN107285788B (en) | 2017-08-02 | 2017-08-02 | Acid-base corrosion-resistant castable |
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| CN107285788A true CN107285788A (en) | 2017-10-24 |
| CN107285788B CN107285788B (en) | 2020-07-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710653085.7A Active CN107285788B (en) | 2017-08-02 | 2017-08-02 | Acid-base corrosion-resistant castable |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108101562A (en) * | 2017-12-29 | 2018-06-01 | 武汉科技大学 | A kind of potassium steel smelting pouring materialfor steel ladle and preparation method thereof |
| CN114409418A (en) * | 2022-01-19 | 2022-04-29 | 宜兴市锅炉密封工程有限公司 | High-strength wear-resistant castable and preparation method and application thereof |
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| US5206191A (en) * | 1990-12-04 | 1993-04-27 | Pechiney Recherche | Method of producing refractory materials and their applications in the casting of corrosive alloys |
| CN1313262A (en) * | 2001-05-15 | 2001-09-19 | 中国建筑材料科学研究院 | Ultralow-temp process for preparing active synthetic refractory |
| CN104003745A (en) * | 2014-06-14 | 2014-08-27 | 张婷 | Wear-resisting anti-corrosion anti-crusting castables for cement kiln |
| CN104341169A (en) * | 2014-10-28 | 2015-02-11 | 宁夏天纵泓光余热发电技术有限公司 | High-temperature-resistant castable |
| CN105084914A (en) * | 2015-07-09 | 2015-11-25 | 长兴泓矿炉料有限公司 | Fireproof material filler and preparation method therefor |
-
2017
- 2017-08-02 CN CN201710653085.7A patent/CN107285788B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5206191A (en) * | 1990-12-04 | 1993-04-27 | Pechiney Recherche | Method of producing refractory materials and their applications in the casting of corrosive alloys |
| CN1313262A (en) * | 2001-05-15 | 2001-09-19 | 中国建筑材料科学研究院 | Ultralow-temp process for preparing active synthetic refractory |
| CN104003745A (en) * | 2014-06-14 | 2014-08-27 | 张婷 | Wear-resisting anti-corrosion anti-crusting castables for cement kiln |
| CN104341169A (en) * | 2014-10-28 | 2015-02-11 | 宁夏天纵泓光余热发电技术有限公司 | High-temperature-resistant castable |
| CN105084914A (en) * | 2015-07-09 | 2015-11-25 | 长兴泓矿炉料有限公司 | Fireproof material filler and preparation method therefor |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108101562A (en) * | 2017-12-29 | 2018-06-01 | 武汉科技大学 | A kind of potassium steel smelting pouring materialfor steel ladle and preparation method thereof |
| CN108101562B (en) * | 2017-12-29 | 2021-01-01 | 武汉科技大学 | Steel ladle castable for high manganese steel smelting and preparation method thereof |
| CN114409418A (en) * | 2022-01-19 | 2022-04-29 | 宜兴市锅炉密封工程有限公司 | High-strength wear-resistant castable and preparation method and application thereof |
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| Publication number | Publication date |
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| CN107285788B (en) | 2020-07-10 |
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Effective date of registration: 20220311 Address after: 030600 Jia Ling Zhen Qian Ying Cun, Qi County, Jinzhong City, Shanxi Province Patentee after: Qixian Hongda Refractory Co.,Ltd. Address before: 312458 No. 111, Xiaokang Kang door, Hua Tang Village, Jin Ting Town, Shengzhou, Shaoxing, Zhejiang Patentee before: SHENGZHOU WANZHI NETWORK TECHNOLOGY CO.,LTD. |
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