CN102219531A - Early-strength quick-drying refractory mud filling material with good insulativity - Google Patents
Early-strength quick-drying refractory mud filling material with good insulativity Download PDFInfo
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Abstract
The invention discloses an early-strength quick-drying refractory mud filling material with a good insulativity. The filling material is prepared through the following steps: adding water in 100 parts of main raw material and 1-10 parts of composite additives, mixing, ageing mixture or fermenting, grouting, naturally drying and baking, wherein the main raw material is a mixture of sintered mullite, quartz sand powder, alumina micropowder and pure calcium aluminate cement; and the composite additives are lignosulfonate, sodium carboxymethylcellulose and one substance or a mixture of two substances selected from subnano alumina micropowder with a grain size of 0.25-0.50 mu m, silicon micropowder with a grain size of 1-2 mu m, sodium tripolyphosphate, sodium hexametaphosphate and sodium polyphosphate. The filling material has good properties such as good early strength, rapid consolidation speed, no moisture regain and good insulativity, dose not corrode metals, can be widely applied to a metallurgy smelting high temperature sensor and a rapid temperature-measuring element to be used as an insulation material.
Description
Technical field
The present invention relates to a kind of refractory mortar stopping composition, especially relate to a kind ofly have that early strength is good, consolidation rate soon, do not get damp, the refractory mortar stopping composition of corroding metal, good insulating not, can be used as pyrostat, the quick temperature measurement element uses as insulating material.
Background technology
In the Metal smelting process, with must the good stopping composition of filling insulativity between each position of the thermometric end of thermocouple temperature measurement, otherwise can form the thermometric deviation because of the thermode short circuit.Traditional quick temperature measurement element stopping composition has adopted the trimagnesium phosphate solution and the aluminium sesquioxide mixture of the exploitation eighties in last century formulated.Because be subjected to the restriction of trimagnesium phosphate solution properties, this technology is very harsh to environmental requirement, and has the following disadvantages:
(1) winter and two seasons of summer, its proportioning characteristic has nothing in common with each other, and producting process difficulty is big in the winter time, and product stability is poor, causes temperature measurement error bigger than normal;
(2) trimagnesium phosphate solution partly forms aluminum phosphate in conjunction with aluminium sesquioxide, its product shows vesicular, and apparent porosity is up to more than 20%, and the aluminum phosphate structure has dehydration, suction reversible reaction, prolonged preservation absorbs airborne moisture easily, causes loose, the differentiation of aluminum phosphate integrated structure;
(3) because the trimagnesium phosphate solution properties shows slant acidity, especially in the easy moisture absorption characteristics of China's south wet weather, thereby can reduce the thermopair insulation resistance value, the thermopair two-stage insulation resistance value that general Various Seasonal is produced differs the hundreds of megaohm;
When (4) produce thermopair winter, tend to cause the trimagnesium phosphate solution usage too high, the acid ratio of product increases, and can cause the dipolar local pollution of thermopair, corroding metal weld in high temperature uses, even can cause the silica tube efflorescence, bigger thermometric deviation appears.
Summary of the invention
Purpose of the present invention is exactly at the prior art above shortcomings, and provide a kind of morning of good insulating strong, fast dried refractory mortar stopping composition, it has, and early strength is good, consolidation rate soon, do not get damp, the premium properties of corroding metal, good insulating not.
For realizing above-mentioned purpose of the present invention, the morning of a kind of good insulating of the present invention, strong, fast dried refractory mortar stopping composition was realized by the following technical solutions.
The morning of a kind of good insulating of the present invention, strong, fast dried refractory mortar stopping composition was to be that 100 parts main raw material, compound additive that mass fraction is 1～10 part add water and be prepared from through batch mixing, ageing mixture or awake material, grouting, seasoning, roasting procedure by mass fraction.
First kind of scheme
Each component of main raw material comprises:
(1) fused mullite is 30～50 parts;
(2) alumina powder of granularity 2～5 μ m is 1～10 part;
(3) Al
2O
340～60 parts of 〉=71% pure calcium aluminate cements.
Compound additive: 1～10 part.
Described compound additive comprises:
(1) a kind of 0.1～6 part in the Subnano-class alumina powder of granularity 0.25～0.50 μ m, granularity 1～2 μ m silicon powder;
(2) mixture of one or both in tripoly phosphate sodium STPP, Sodium hexametaphosphate 99, the sodium polyphosphate is 0.1～1.5 part;
(3) ligninsulfonate is 0.5～1.5 part;
(4) Xylo-Mucine is 0.1～1 part.
The purity of the pure calcium aluminate cement in the described main raw material is with Al
2O
3〉=75% is good, and described fused mullite granularity≤76 μ m are advisable.
Second kind of scheme
Each component of main raw material comprises:
(1) fused mullite is 10～50 parts;
(2) alumina powder of granularity 2～5 μ m is 1～10 part;
(3) Al
2O
320～60 parts of 〉=75% pure calcium aluminate cements;
(4) silica powder is 1～30 part.
Compound additive: 1～10 part;
Described compound additive comprises:
(1) the Subnano-class alumina powder of granularity 0.25～0.50 μ m is 0.1～6 part;
(2) mixture of one or both in tripoly phosphate sodium STPP, Sodium hexametaphosphate 99, the sodium polyphosphate is 0.1～1.5 part;
(3) ligninsulfonate is 0.5～1.5 part;
(4) Xylo-Mucine is 0.1～1 part.
Fused mullite in the described main raw material, the granularity of silica powder≤76 μ m are advisable.
The third scheme
Each component of main raw material comprises:
(1) silica powder is 30～45 parts;
(2) alumina powder of granularity 2～5 μ m is 1～10 part;
(3) Al
2O
345～60 parts of 〉=75% pure calcium aluminate cements.
Compound additive: 1～10 part.
Described compound additive comprises:
(1) the Subnano-class alumina powder of granularity 0.25～0.50 μ m is 0.1～6 part;
(2) mixture of one or both in tripoly phosphate sodium STPP, Sodium hexametaphosphate 99, the sodium polyphosphate is 0.1～1.5 part;
(3) ligninsulfonate is 0.5～1.5 part;
(4) Xylo-Mucine is 0.1～1 part.
The granularity of the silica powder in the described main raw material≤76 μ m are advisable.
The 4th kind of scheme
Each component of main raw material comprises:
(1) fused mullite is 40～50 parts;
(2) Al
2O
350～60 parts of 〉=75% pure calcium aluminate cements.
Compound additive: 1～10 part.
Described compound additive comprises:
(1) granularity 1～2 μ m silicon powder is 0.1～6 part;
(2) mixture of one or both in tripoly phosphate sodium STPP, Sodium hexametaphosphate 99, the sodium polyphosphate is 0.1～1.5 part;
(3) ligninsulfonate is 0.5～1.5 part;
(4) Xylo-Mucine is 0.1～1 part.
Fused mullite granularity in the described main raw material≤76 μ m are advisable.
The morning of a kind of good insulating of the present invention, strong, fast dried refractory mortar stopping composition adopted above technical scheme, utilized aluminium sesquioxide mixture and water generates spawn and formed the consolidation principle, had following remarkable advantage:
(1) abandoned traditional trimagnesium phosphate solution combined process in the production process fully, only need common water to get final product, and aluminium sesquioxide mixture and the apparent neutral alkali partially of water generates spawn), therefore it is nonhygroscopic and have characteristics such as protection against the tide, the stability of quality product in guaranteeing to produce to solidify the back stopping composition.
(2) owing to water is transferred mud apparent neutral (weakly alkaline), in high temperature uses, the dipolar part of thermopair is not produced pollution, more can corroding metal weld, no longer generation and silica tube react with.
(3) form consolidation owing to adopting with the water generates spawn, make pug fixed fast by spawn being added a spot of setting accelerator, early strength is big, oven dry back intensity obviously improves, even the Strength Changes that is immersed in the water is also little, is particularly suitable for wet weather area, China south and produces thermopair.
(4) good fluidity transferred than acid of the water flowability of transferring pug is many, and the cradle portion of being in the milk for the first time in actually operating allows the mud head be filled water, during back-grouting, just is difficult for forming false tamping, and transfers pug grouting convenient than classical acid.
(5) water accent slurry curing structure is that capillary is poroid, solidify the back and itself have waterproof and dampproof characteristics, the pore structure forms equilibrium state to the absorption of water in air gas, resistance value is changed by the humidity cycle of air in the four seasons, naturally place and equilibrated pore structure is long-term, also can not change insulation resistance and descend, reduce the change of surveying into rate and causing measuring accuracy.
The fast dry mud material of the present invention is that above-mentioned raw material for preparing and compound additive thorough mixing is even, add in the slurry mixer before the cast on-site, add water modulation and be stirred to 350～400 required denseness of cast-in-site and can use, transfer mud to save 48 hours ageing mixture time than former classical acid.It is little that the present invention has an amount of water, receives the time of doing by back-grouting and shorten, and improved work efficiency.Grouting work in-process well are through 24 hours natural Health preservations, through reaching higher early strength after 60 ℃ of oven dry of low temperature.
Description of drawings
Fig. 1 is strong, fast dried refractory mortar stopping composition preparation technology schema morning of a kind of good insulating of the present invention.
Embodiment
For further describing the present invention, below in conjunction with drawings and Examples to the morning of a kind of good insulating of the present invention strong, fast dried refractory mortar stopping composition be described in further detail again, press 100 parts of preparations of main raw material siccative:
Embodiment 1
20 parts of the mullites of granularity≤76 μ m, 5 parts of the alumina powders of granularity 2～5 μ m, 20 parts of the quartz sands of granularity≤76 μ m, Al
2O
355 parts of 〉=75% pure calcium aluminate cements, 1.6 parts of compound additives.Compound additive wherein: 1 part of granularity 0.25～0.50 μ m Subnano-class alumina powder, 0.1 part of tripoly phosphate sodium STPP, 0.2 part of ligninsulfonate, 0.3 part of Xylo-Mucine.Stirred dry powder 2 minutes in slurry mixer, add water and stirred 3 minutes, place and can be in the milk after 30 minutes, work in-process were finished through 60 ℃ of bakings through 24 hours natural Health preservations in 48 hours.
Embodiment 2
5 parts of the alumina powders of granularity 2～5 μ m, 40 parts of the quartz sands of granularity≤76 μ m, Al
2O
355 parts of 〉=75% pure calcium aluminate cements, 1.6 parts of compound additives.Compound additive wherein: 1 part of granularity 0.25～0.50 μ m Subnano-class alumina powder, 0.1 part of tripoly phosphate sodium STPP, 0.2 part of ligninsulfonate, 0.3 part of Xylo-Mucine.Stirred dry powder 2 minutes in slurry mixer, add water and stirred 3 minutes, place and can be in the milk after 30 minutes, work in-process were finished through 60 ℃ of bakings through 24 hours natural Health preservations in 48 hours.
Embodiment 3
40 parts of the mullites of granularity≤76 μ m, 5 parts of the alumina powders of granularity 2～5 μ m, Al
2O
355 parts of 〉=75% pure calcium aluminate cements, 1.7 parts of compound additives.Compound additive wherein: 1 part of granularity 0.25～0.50 μ m Subnano-class alumina powder, 0.1 part of Sodium hexametaphosphate 99,0.1 part of tripoly phosphate sodium STPP, 0.2 part of ligninsulfonate, 0.3 part of Xylo-Mucine.Stirred dry powder 2 minutes in slurry mixer, add water and stirred 3 minutes, place and can be in the milk after 30 minutes, work in-process were finished through 60 ℃ of bakings through 24 hours natural Health preservations in 48 hours.
Embodiment 4
37 parts of the mullites of granularity≤76 μ m, 5 parts of the alumina powders of granularity 2～5 μ m, Al
2O
358 parts of 〉=75% pure calcium aluminate cements, 1.3 parts of compound additives.Compound additive wherein: 0.5 part of the silicon powder of granularity 1～2 μ m, 0.1 part of sodium polyphosphate, 0.2 part of ligninsulfonate, 0.5 part of Xylo-Mucine.Stirred dry powder 2 minutes in slurry mixer, add water and stirred 3 minutes, place and can be in the milk after 30 minutes, work in-process were finished through 60 ℃ of bakings through 24 hours natural Health preservations in 48 hours.
Embodiment 5
45 parts of the mullites of granularity≤76 μ m, Al
2O
355 parts of 〉=75% pure calcium aluminate cements, 1.3 parts of compound additives.Compound additive wherein: 0.5 part of the silicon powder of granularity 1～2 μ m, 0.1 part of tripoly phosphate sodium STPP, 0.2 part of ligninsulfonate, 0.5 part of Xylo-Mucine.Stirred dry powder 2 minutes in slurry mixer, add water and stirred 3 minutes, place and can be in the milk after 30 minutes, work in-process were finished through 60 ℃ of bakings through 24 hours natural Health preservations in 48 hours.
Embodiment 6
37 parts of the mullites of granularity≤76 μ m, 5 parts of the alumina powders of granularity 2～5 μ m, Al
2O
358 parts of 〉=71% pure calcium aluminate cements, 2.3 parts of compound additives.Compound additive wherein: 1 part of granularity 0.25～0.50 μ m Subnano-class alumina powder, 0.5 part of the silicon powder of granularity 1～2 μ m, 0.1 part of sodium polyphosphate, 0.2 part of ligninsulfonate, 0.5 part of Xylo-Mucine.Stirred dry powder 2 minutes in slurry mixer, add water and stirred 3 minutes, place and can be in the milk after 30 minutes, work in-process were finished through 60 ℃ of bakings through 24 hours natural Health preservations in 48 hours.
The pure calcium aluminate cement that adopts among the present invention also can part replace with silicate cement.
Claims (8)
- The morning of a good insulating strong, fast dried refractory mortar stopping composition, it is characterized in that being is that 100 parts main raw material, compound additive that mass fraction is 1～10 part add water and be prepared from through batch mixing, ageing mixture or awake material, grouting, seasoning, roasting procedure by mass fraction;Described main raw material comprises:(1) fused mullite is 30～50 parts;(2) alumina powder of granularity 2～5 μ m is 1～10 part;(3) Al 2O 340～60 parts of 〉=71% pure calcium aluminate cements;Described compound additive comprises:(1) a kind of 0.1～6 part in the Subnano-class alumina powder of granularity 0.25～0.50 μ m, granularity 1～2 μ m silicon powder;(2) mixture of one or both in tripoly phosphate sodium STPP, Sodium hexametaphosphate 99, the sodium polyphosphate is 0.1～1.5 part;(3) ligninsulfonate is 0.5～1.5 part;(4) Xylo-Mucine is 0.1～1 part.
- The morning of a kind of good insulating as claimed in claim 1 strong, fast dried refractory mortar stopping composition, it is characterized in that: the purity of the pure calcium aluminate cement in the described main raw material is with Al 2O 3〉=75%, described fused mullite granularity≤76 μ m.
- The morning of a good insulating strong, fast dried refractory mortar stopping composition, it is characterized in that being is that 100 parts main raw material, compound additive that mass fraction is 1～10 part add water and be prepared from through batch mixing, ageing mixture or awake material, grouting, seasoning, roasting procedure by mass fraction;Each component of described main raw material comprises:(1) fused mullite is 10～50 parts;(2) alumina powder of granularity 2～5 μ m is 1～10 part;(3) Al 2O 320～60 parts of 〉=75% pure calcium aluminate cements;(4) silica powder is 1～30 part;Described compound additive comprises:(1) the Subnano-class alumina powder of granularity 0.25～0.50 μ m is 0.1～6 part;(2) mixture of one or both in tripoly phosphate sodium STPP, Sodium hexametaphosphate 99, the sodium polyphosphate is 0.1～1.5 part;(3) ligninsulfonate is 0.5～1.5 part;(4) Xylo-Mucine is 0.1～1 part.
- The morning of a kind of good insulating as claimed in claim 3 strong, fast dried refractory mortar stopping composition, it is characterized in that: the fused mullite in the described main raw material, the granularity of silica powder≤76 μ m.
- The morning of a good insulating strong, fast dried refractory mortar stopping composition, it is characterized in that being is that 100 parts main raw material, compound additive that mass fraction is 1～10 part add water and be prepared from through batch mixing, ageing mixture or awake material, grouting, seasoning, roasting procedure by mass fraction;Each component of described main raw material comprises:(1) silica powder is 30～45 parts;(2) alumina powder of granularity 2～5 μ m is 1～10 part;(3) Al 2O 345～60 parts of 〉=75% pure calcium aluminate cements;Described compound additive comprises:(1) the Subnano-class alumina powder of granularity 0.25～0.50 μ m is 0.1～6 part;(2) mixture of one or both in tripoly phosphate sodium STPP, Sodium hexametaphosphate 99, the sodium polyphosphate is 0.1～1.5 part;(3) ligninsulfonate is 0.5～1.5 part;(4) Xylo-Mucine is 0.1～1 part.
- The morning of a kind of good insulating as claimed in claim 5 strong, fast dried refractory mortar stopping composition, it is characterized in that: the granularity of the silica powder in the described main raw material≤76 μ m.
- The morning of a good insulating strong, fast dried refractory mortar stopping composition, it is characterized in that being is that 100 parts main raw material, compound additive that mass fraction is 1～10 part add water and be prepared from through batch mixing, ageing mixture or awake material, grouting, seasoning, roasting procedure by mass fraction;Described main raw material comprises:(1) fused mullite is 40～50 parts;(2) Al 2O 350～60 parts of 〉=75% pure calcium aluminate cements.Described compound additive comprises:(1) granularity 1～2 μ m silicon powder is 0.1～6 part;(2) mixture of one or both in tripoly phosphate sodium STPP, Sodium hexametaphosphate 99, the sodium polyphosphate is 0.1～1.5 part;(3) ligninsulfonate is 0.5～1.5 part;(4) Xylo-Mucine is 0.1～1 part.
- The morning of a kind of good insulating as claimed in claim 7 strong, fast dried refractory mortar stopping composition, it is characterized in that: the fused mullite granularity in the described main raw material≤76 μ m.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103641506A (en) * | 2013-12-11 | 2014-03-19 | 中国石油集团川庆钻探工程有限公司 | Fire-resistant pointing material in petroleum industry and construction process of fire-resistant pointing material |
| CN104773995A (en) * | 2015-04-01 | 2015-07-15 | 马鞍山市东江冶金材料有限公司 | Quick temperature measurement component acidic stuffing with low moisture regaining possibility |
| CN110438340A (en) * | 2019-07-18 | 2019-11-12 | 河南中原黄金冶炼厂有限责任公司 | A method of for handling the binder of Kaldo Furnace system cigarette ash and handling Kaldo Furnace system cigarette ash using it |
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| CN1569747A (en) * | 2003-07-23 | 2005-01-26 | 重庆钢铁(集团)有限责任公司 | Refractory material for blast furnace gas cover |
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| CN101215176A (en) * | 2007-12-28 | 2008-07-09 | 中国钢研科技集团公司 | High-strength low heat conductivity energy-saving fireproof material |
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| CN1569747A (en) * | 2003-07-23 | 2005-01-26 | 重庆钢铁(集团)有限责任公司 | Refractory material for blast furnace gas cover |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103641506A (en) * | 2013-12-11 | 2014-03-19 | 中国石油集团川庆钻探工程有限公司 | Fire-resistant pointing material in petroleum industry and construction process of fire-resistant pointing material |
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| CN104773995A (en) * | 2015-04-01 | 2015-07-15 | 马鞍山市东江冶金材料有限公司 | Quick temperature measurement component acidic stuffing with low moisture regaining possibility |
| CN110438340A (en) * | 2019-07-18 | 2019-11-12 | 河南中原黄金冶炼厂有限责任公司 | A method of for handling the binder of Kaldo Furnace system cigarette ash and handling Kaldo Furnace system cigarette ash using it |
| CN110438340B (en) * | 2019-07-18 | 2020-11-10 | 河南中原黄金冶炼厂有限责任公司 | Adhesive for processing soot of Kaldo furnace system and method for processing soot of Kaldo furnace system by using adhesive |
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