CN105272298B - A kind of environmental friendly ramming material - Google Patents
A kind of environmental friendly ramming material Download PDFInfo
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- CN105272298B CN105272298B CN201510716224.7A CN201510716224A CN105272298B CN 105272298 B CN105272298 B CN 105272298B CN 201510716224 A CN201510716224 A CN 201510716224A CN 105272298 B CN105272298 B CN 105272298B
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Abstract
The invention discloses a kind of environmental friendly ramming material, is made of discarded brick particle, high grade bauxite, pelletted pitch, carborundum, modified Nano carbon dust, alumina powder etc..Solve the problems, such as the comprehensive utilization of Al2O3 SiC C bricks, produce the low ramming mass of cost using cheap industrial solid castoff, its cost is only the 75% of common iron runner castable cost, while meets national energy-saving environmental requirement and fire resisting industry development trend.The present invention can be such that discarded Al2O3 SiC C bricks are applied in ramming mass, reduce the waste of resource and the destruction of environment, saved the production cost of ramming mass, while ensure that the quality of product, beneficial to popularization and application.
Description
【Technical field】
The present invention relates to the technical field of metal smelt, particularly a kind of technical field of environmental friendly ramming material.
【Background technology】
Ramming mass be used primarily in blast furnace iron outlet groove, slag runner ramming, build by laying bricks or stones and repair, or be inconvenient to use casting and constructing
Position.At present, blast furnace iron runner with ramming mass using corundum, high grade bauxite, SiC as ramming mass matrix, add a certain amount of asphalt powder,
The bonding agents such as tar.The tap drain of big blast furnace typically uses castable, and uses ramming mass in iron runner part more.Small furnace is due to slag
Iron is difficult to clear up, and uses based on ramming mass more, and iron only leads to iron in a few kiloton, the ramming mass after composition improves with formula in recent years
Amount reached more than 20,000 tons.Exempting from baking iron runner ramming mass need not toast, and directly logical iron, use is more convenient, and ramming is also easy.
But due to having used pitch, tar, use at high temperature, distribute the toxic smog of yellow, have an impact to site environment, damage work
The health of people.And in iron runner use when dry slag, local failure, scarfing cinder is extremely difficult, temperature is high, now local paving ditch, ramming
Expect taste weight, influence environment.In recent years, as the continued downturn of steel industry, each iron and steel enterprise reduce the increased pressure of cost,
Refractory material also turns into steel industry by the important step of this synergy.In addition, the Al2O3- that many big-and-middle-sized iron and steel enterprises are annual
SiC-C bricks go out of use because tearing stove open, and a large amount of solid waste cause the waste of resource and the destruction of environment.
【The content of the invention】
The purpose of the present invention is exactly to solve the problems of the prior art, proposes a kind of environmental friendly ramming material, can make to discard
Al2O3-SiC-C bricks be applied in ramming mass, reduce the waste of resource and the destruction of environment, saved the production of ramming mass
Cost, while the quality of product is ensure that, beneficial to popularization and application.
To achieve the above object, the present invention proposes a kind of environmental friendly ramming material, including following components and the matter of each component
Amount ratio is：
The discarded brick particle is particle ＜ 0.525mm fine powder, and the main component of the discarded brick particle is Al2O3-
SiC-C, the composite micro-powder are mixed by alumina powder and ultrafine silica powder.
Preferably, the high grade bauxite raw material is particle ＜ 0.325mm fine powder, the purity of the high grade bauxite raw material
More than 95%, the pelletted pitch raw material is particle ＜ 0.850mm fine powder, and the zircon raw material is particle ＜ 0.150mm
Fine powder, the sic raw material be particle ＜ 0.115mm fine powder, the modified Nano carbon dust raw material is particle ＜
0.025mm fine powder, the ferro-silicon nitride raw material are particle ＜ 0.525mm fine powder, and the alumina powder is particle ＜
0.025mm fine powder, the ultrafine silica powder are particle ＜ 0.025mm fine powder.
Preferably, the composite micro-powder includes following components and the mass ratio of each component is：Alumina powder：60~
70 parts；Ultrafine silica powder：30~40 parts.
Preferably, the bonding agent includes following components and the mass ratio of each component is：10~40 parts of phenolic resin；
60~80 parts of organic solvent.
Preferably, the mass ratio of each component is：Discarded brick particle：50 parts；High grade bauxite：25 parts；Pelletted pitch：10
Part；Zircon：10 parts；Carborundum：5 parts；Modified Nano carbon dust：10 parts；Polypropylene fibre：1 part；Composite micro-powder：10 parts；With reference to
Agent：6 parts；Ferro-silicon nitride：5 parts.
Preferably, the mass ratio of each component is：Discarded brick particle：60 parts；High grade bauxite：20 parts；Pelletted pitch：15
Part；Zircon：15 parts；Carborundum：7 parts；Modified Nano carbon dust：15 parts；Polypropylene fibre：1 part；Composite micro-powder：15 parts；With reference to
Agent：8 parts；Ferro-silicon nitride：7 parts.
Preferably, the mass ratio of each component is：Discarded brick particle：55 parts；High grade bauxite：25 parts；Pelletted pitch：15
Part；Zircon：20 parts；Carborundum：8 parts；Modified Nano carbon dust：10 parts；Polypropylene fibre：2 parts；Composite micro-powder：15 parts；With reference to
Agent：8 parts；Ferro-silicon nitride：10 parts.
Beneficial effects of the present invention：The present invention is using discarded brick particle, high grade bauxite, pelletted pitch, carborundum, modification
Environmentally friendly ramming mass made of nano-carbon powder, alumina powder etc..Solve the problems, such as that Al2O3-SiC-C bricks comprehensively utilize, utilization is honest and clean
The industrial solid castoff of valency produces the low ramming mass of cost, and its cost is only the 75% of common iron runner castable cost, together
The environmental requirement of Shi Fuhe national energy-savings and fire resisting industry development trend；Ferro-silicon nitride and zircon are added in ramming mass, makes to smash
The resistance to slag corrosion of dnockout is significantly improved, and most of C and the ferro-silicon nitride reaction under high temperature in Al2O3-SiC-C systems turn
Turn to carborundum and Fe3Si, while there is no obvious boundary line between each phase, the minimum Fe3Si of particle be embedded in carborundum it
In, it is dispersed, dense structure is formed between cenotype SiC and Si3N4 and Fe3Si；ZrO2-SiO2 decomposition production simultaneously
Raw volumetric expansion, the ZrO2 that ZrO2-SiO2 decomposes generation does not react generation eutectic with high-temperature fusant, but assembles in strip
In slag blanket, the infiltration to slag plays barrier effect, while causes the viscosity of slag to rise, so as to effectively inhibit the fortune of slag
It is dynamic, the slag-resistant permeability of material is improved.The present invention can be such that discarded Al2O3-SiC-C bricks are applied in ramming mass, subtract
The waste of resource and the destruction of environment are lacked, have saved the production cost of ramming mass, while ensure that the quality of product, beneficial to pushing away
Wide application.
The feature and advantage of the present invention will be described in detail by embodiment.
【Embodiment】
A kind of environmental friendly ramming material of the present invention, including the mass ratio of following components and each component is：
The discarded brick particle is particle ＜ 0.525mm fine powder, and the main component of the discarded brick particle is Al2O3-
SiC-C, the composite micro-powder are mixed by alumina powder and ultrafine silica powder.
The high grade bauxite raw material is particle ＜ 0.325mm fine powder, and the purity of the high grade bauxite raw material is more than 95%,
The pelletted pitch raw material be particle ＜ 0.850mm fine powder, the zircon raw material be particle ＜ 0.150mm fine powder, institute
The fine powder that sic raw material is particle ＜ 0.115mm is stated, the modified Nano carbon dust raw material is particle ＜ 0.025mm fine powder,
The ferro-silicon nitride raw material be particle ＜ 0.525mm fine powder, the alumina powder be particle ＜ 0.025mm fine powder, institute
State the fine powder that ultrafine silica powder is particle ＜ 0.025mm.
The composite micro-powder includes following components and the mass ratio of each component is：Alumina powder：60~70 parts；Oxidation
Silicon powder：30~40 parts.
The bonding agent includes following components and the mass ratio of each component is：10~40 parts of phenolic resin；Organic solvent
60~80 parts.
Embodiment one：Discarded brick particle：50 parts；High grade bauxite：25 parts；Pelletted pitch：10 parts；Zircon：10 parts；Carbonization
Silicon：5 parts；Modified Nano carbon dust：10 parts；Polypropylene fibre：1 part；Composite micro-powder：10 parts；Bonding agent：6 parts；Ferro-silicon nitride：5
Part.
Embodiment two：Discarded brick particle：60 parts；High grade bauxite：20 parts；Pelletted pitch：15 parts；Zircon：15 parts；Carbon
SiClx：7 parts；Modified Nano carbon dust：15 parts；Polypropylene fibre：1 part；Composite micro-powder：15 parts；Bonding agent：8 parts；Ferro-silicon nitride：7
Part.
Embodiment three：Discarded brick particle：55 parts；High grade bauxite：25 parts；Pelletted pitch：15 parts；Zircon：20 parts；Carbonization
Silicon：8 parts；Modified Nano carbon dust：10 parts；Polypropylene fibre：2 parts；Composite micro-powder：15 parts；Bonding agent：8 parts；Ferro-silicon nitride：10
Part.
The present invention is using discarded brick particle, high grade bauxite, pelletted pitch, carborundum, modified Nano carbon dust, alumina powder
The environmentally friendly ramming mass Deng made of.Solve the problems, such as the comprehensive utilization of Al2O3-SiC-C bricks, utilize cheap industrial solid castoff
The low ramming mass of cost is produced, its cost is only the 75% of common iron runner castable cost, while meets national energy-saving environmental protection
It is required that and fire resisting industry development trend；Ferro-silicon nitride and zircon are added in ramming mass, obtains the resistance to slag corrosion of ramming mass
To significantly improving, most of C and the ferro-silicon nitride reaction under high temperature in Al2O3-SiC-C systems are converted into carborundum and Fe3Si,
Simultaneously there is no obvious boundary line between each phase, the minimum Fe3Si of particle is embedded among carborundum, dispersed, cenotype SiC
Dense structure is formed between Si3N4 and Fe3Si；ZrO2-SiO2 decomposition produces volumetric expansion, ZrO2- simultaneously
The ZrO2 that SiO2 decomposes generation does not react generation eutectic with high-temperature fusant, but is gathered in strip in slag blanket, to slag
Infiltration play barrier effect, while cause the viscosity of slag to rise, so as to effectively inhibit the motion of slag, melt the anti-of material
Slag permeability improves.
Above-described embodiment is the description of the invention, is not limitation of the invention, it is any to simple transformation of the present invention after
Scheme belong to protection scope of the present invention.
Claims (4)
- A kind of 1. environmental friendly ramming material, it is characterised in that：Mass ratio including following components and each component is：The discarded brick particle is particle ＜ 0.525mm fine powder, and the main component of the discarded brick particle is Al2O3- SiC-C, The composite micro-powder is mixed by alumina powder and ultrafine silica powder, and the high grade bauxite raw material is particle ＜ 0.325mm Fine powder, the purity of the high grade bauxite raw material is more than 95%, and the pelletted pitch raw material is particle ＜ 0.850mm fine powder, The zircon raw material is particle ＜ 0.150mm fine powder, and the sic raw material is particle ＜ 0.115mm fine powder, described Modified Nano carbon dust raw material is particle ＜ 0.025mm fine powder, and the ferro-silicon nitride raw material is particle ＜ 0.525mm fine powder, The alumina powder is particle ＜ 0.025mm fine powder, and the ultrafine silica powder is particle ＜ 0.025mm fine powder, described Composite micro-powder includes following components and the mass ratio of each component is：Alumina powder：60~70 parts；Ultrafine silica powder：30~ 40 parts, the bonding agent includes following components and the mass ratio of each component is：10~40 parts of phenolic resin；Organic solvent 60~ 80 parts.
- A kind of 2. environmental friendly ramming material as claimed in claim 1, it is characterised in that：Fraction including following components and each component Ratio is：Discarded brick particle：50 parts；High grade bauxite：25 parts；Pelletted pitch：10 parts；Zircon：10 parts；Carborundum：5 parts；Change Property nano-carbon powder：10 parts；Polypropylene fibre：1 part；Composite micro-powder：10 parts；Bonding agent：6 parts；Ferro-silicon nitride：5 parts.
- A kind of 3. environmental friendly ramming material as claimed in claim 1, it is characterised in that：Fraction including following components and each component Ratio is：Discarded brick particle：60 parts；High grade bauxite：20 parts；Pelletted pitch：15 parts；Zircon：15 parts；Carborundum：7 parts；Change Property nano-carbon powder：15 parts；Polypropylene fibre：1 part；Composite micro-powder：15 parts；Bonding agent：8 parts；Ferro-silicon nitride：7 parts.
- A kind of 4. environmental friendly ramming material as claimed in claim 1, it is characterised in that：Fraction including following components and each component Ratio is：Discarded brick particle：55 parts；High grade bauxite：25 parts；Pelletted pitch：15 parts；Zircon：20 parts；Carborundum：8 parts；Change Property nano-carbon powder：10 parts；Polypropylene fibre：2 parts；Composite micro-powder：15 parts；Bonding agent：8 parts；Ferro-silicon nitride：10 parts.
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| CN106083107B (en) * | 2016-07-22 | 2018-08-21 | 武汉科技大学 | Using polyaluminium chloride waste residue as iron runner castable of primary raw material and preparation method thereof |
| CN108046810A (en) * | 2017-12-11 | 2018-05-18 | 宁波爱克创威新材料科技有限公司 | Environment-friendly type gunning refractory and preparation method thereof |
| CN112897999A (en) * | 2021-01-27 | 2021-06-04 | 湖南华菱涟源钢铁有限公司 | Castable for ladle slag-off plate, ladle slag-off plate and preparation method thereof |
| CN113582707B (en) * | 2021-08-13 | 2023-01-06 | 宜兴市海科窑炉工程有限公司 | High-strength environment-friendly wear-resistant ramming mass and preparation method thereof |
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| JP2774982B2 (en) * | 1989-05-17 | 1998-07-09 | 東興建設株式会社 | Water pipe protection material and water pipe protection wall used for incinerators, etc. |
| CN103693977B (en) * | 2013-12-12 | 2017-01-11 | 东海县盛昌石英材料有限公司 | Regenerated pouring material used for swinging runner and prepared from waste slide plates and preparation method of regenerated pouring material |
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