CN105622114B - A kind of low density fire resistant fiber coating and preparation method thereof - Google Patents
A kind of low density fire resistant fiber coating and preparation method thereof Download PDFInfo
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- CN105622114B CN105622114B CN201510961885.6A CN201510961885A CN105622114B CN 105622114 B CN105622114 B CN 105622114B CN 201510961885 A CN201510961885 A CN 201510961885A CN 105622114 B CN105622114 B CN 105622114B
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- low density
- fire resistant
- fiber coating
- resistant fiber
- density fire
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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
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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
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/06—Aluminous cements
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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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/28—Fire resistance, i.e. materials resistant to accidental fires or high temperatures
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- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
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- Ceramic Products (AREA)
- Chemical Or Physical Treatment Of Fibers (AREA)
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Abstract
A kind of low density fire resistant fiber coating and preparation method thereof is related to a kind of refractory fibre and smears, is made of following compositions, is made of by weight percent following compositions by weight percent：Refractory fiber cotton 23 ~ 50%；Hollow ball 10 ~ 20%；Bonding clay 27 ~ 36%；Alumine fine powder 0 ~ 6%；High alumina cement 8 ~ 12%；Bonding agent 3 ~ 5%；Low density fire resistant fiber coating is obtained by dispensing, batch mixing, stirring smearing step；The present invention reduces the bulk density of coating on the basis of thermal and insulating performance is good, and improving the volume stability of material realizes the purpose for improving adhesiving effect when thicker thermal insulation layer is smeared.
Description
【Technical field】
The present invention relates to a kind of refractory fibre coating more particularly to a kind of low density fire resistant fiber coating and its preparation sides
Method.
【Background technology】
Well known, various thermal kiln furnace masonry accumulation of heat losses and furnace body surface heat radiating loss generally account for about fuel consumption
24 ~ 45%, worldwide resource, energy shortage today, compared to traditional light heat-insulating material, using refractory fibre as bone
Expect production coating or gunning refractory due to the features such as quality is lighter, thermal conductivity is lower and easy for construction, be widely used in
The heat insulation layer that kiln furnace wall is in contact is, it can be achieved that saving energy 20 ~ 30%.
And in the privileged sites of certain kilns, such as gasification furnace furnace roof, it is designed as chromium aluminium zirconia block, chrome corundum brick, pink fused alumina and pours
Material feeding, the four-layer structure of fiber coating, since chromium aluminium zirconia block, chrome corundum brick, pink fused alumina castable thermal conductivity factor are larger, to protect
It demonstrate,proves gasification furnace furnace wall temperature and is less than box hat design temperature, fiber smears the bed of material and is commonly designed thicker, some up to 50 ~ 70mm,
The fiber coating of such thickness easily occurs coming off even whole due to gravity and dry contraction during practice of construction
It caves in, construction requirement can not be met, influence construction efficiency.
【Invention content】
In order to overcome the shortcomings of in background technology, the invention discloses a kind of low density fire resistant fiber coating and its preparations
Method on the basis of thermal and insulating performance is good, reduces the bulk density of coating, and the volume stability for improving material is real
The purpose for improving adhesiving effect when thicker thermal insulation layer is smeared is showed.
In order to realize the purpose of foregoing invention, the present invention adopts the following technical scheme that：
A kind of low density fire resistant fiber coating is made of by weight percent following compositions：
Refractory fiber cotton 23 ~ 50%；
Hollow ball 10 ~ 20%；
Bonding clay 27 ~ 36%；
Alumine fine powder 0 ~ 6%；
High alumina cement 8 ~ 12%；
Bonding agent 3 ~ 5%.
The low density fire resistant fiber coating further includes water-reducing agent, and the dosage of the water-reducing agent is fiber coating
The 0.05 ~ 0.5% of total amount.
The low density fire resistant fiber coating, said components grain graininess are：20 ~ 0mm of refractory fiber cotton, with reference to viscous
0.074 ~ 0mm of soil, alumine 0.074 ~ 0mm of powder, 0.088 ~ 0mm of high alumina cement.
The low density fire resistant fiber coating, the refractory fiber cotton are aluminosilicate property ceramic fiber cotton.
The low density fire resistant fiber coating, the hollow ball are alumina hollow ball or fly ash float.
The low density fire resistant fiber coating, the bonding clay are Guangxi white clay.
The low density fire resistant fiber coating, the bonding agent are one or more of CMC, HPMC, dextrin
Combination.
The low density fire resistant fiber coating, the water-reducing agent are one in sodium tripolyphosphate, sodium citrate, NNO
Kind or several combinations.
A kind of preparation method of low density fire resistant fiber coating, the described method comprises the following steps：
（1）Dispensing：According to the ratio of each component, weigh respectively bonding clay, alumine powder, high alumina cement,
Bonding agent, water-reducing agent and hollow ball are spare；
（2）Batch mixing：Previous step is connect, each component prepared is uniformly mixed, later by uniformly mixed material and fire resisting
Cellucotton packs spare after stirring evenly；
（3）Stirring is smeared：Previous step is connect, in use, water is added to carry out secondary agitation while stirring, after stirring evenly
It smears, amount of water is the 70 ~ 80% of batch mixing material gross weight.
Due to the adoption of the above technical scheme, the present invention has the advantages that：
The present invention can keep the basis compared with lower thermal conductivity by adding hollow ball in refractory fibre coating
On, reduce the bulk density of product and dry Linear change rate, improve adhesiving effect when thicker thermal insulation layer is smeared, and in thermal insulation separation
On the basis of good in thermal property, the bulk density of coating is reduced, the volume stability of material is improved, reduces Material shrinkage
The gap generated between box hat is bonded after dry between material and box hat closely, so as to improve the construction efficiency of coating.
【Specific embodiment】
The present invention can be explained in more detail by the following examples, the open purpose of the present invention is intended to the protection present invention
In the range of all changes and improvements, the invention is not limited in the following examples：
Embodiment 1
A kind of gasification furnace low density fire resistant fiber coating, by refractory fiber cotton 23%, the hollow ball of 20 ~ 0mm of grain size
20%th, the bonding clay 36% of 0.074 ~ 0mm, the alumine powder 6% of 0.074 ~ 0mm, the high alumina cement 12% of 0.088 ~ 0mm, paste
Essence 0.5%, CMC2.5% and sodium citrate 0.1% form.
Gasification furnace low density fire resistant fiber coating, production technology are：
（1）Weigh hollow ball, bonding clay, high-alumina fly, high alumina cement, bonding agent and diminishing respectively according to above-mentioned requirements
Agent, it is then that load weighted each component is spare after mixing；
（2）It chooses and weighs refractory fiber cotton, be added into step（1）The material mixed, stirs evenly, and packs；
（3）In use, first dry mixing, adds water while stirring later, the dosage of water is the 70-80% of material total amount, and stirring extremely may be used
It smears.
Embodiment 2
A kind of gasification furnace low density fire resistant fiber coating, by refractory fiber cotton 35%, the hollow ball of 20 ~ 0mm of grain size
15%th, high alumina cement 10%, the CMC of the bonding clay 32% of 0.074 ~ 0mm, the alumine powder 4% of 0.074 ~ 0mm, 0.088 ~ 0mm
4% and NNO 0.5% is formed.
Gasification furnace low density fire resistant fiber coating, production technology is the same as embodiment 1.
Embodiment 3
A kind of gasification furnace low density fire resistant fiber coating, by refractory fiber cotton 50%, the hollow ball of 20 ~ 0mm of grain size
10%th, 0.05% group of the bonding clay 27% of 0.074 ~ 0mm, the high alumina cement 8% of 0.088 ~ 0mm, HPMC 5% and sodium tripolyphosphate
Into.
Gasification furnace low density fire resistant fiber coating, production technology is the same as embodiment 1.
The smearing pug prepared as stated above smears molding in the standard module of 160 × 40 × 40mm, through 110 DEG C ×
After drying for 24 hours, bulk density and Linear change rate reduce 35% ~ 45% and 40.0% compared with the product that the prior art produces respectively ~
49.2%.Construction verification is carried out on the steel plate, as a result shows that the invention product workability is good, is bonded after dry with steel plate tightly
Close, caking property is strong.
Part not in the detailed description of the invention is the prior art.
The embodiment selected herein for the goal of the invention of the open present invention, is presently considered to be suitable, still,
It is to be understood that the present invention is directed to include all changes and the improvement that all belong to this design and the embodiment in invention scope.
Claims (8)
1. a kind of low density fire resistant fiber coating, it is characterized in that：It is made of by weight percent following compositions：
Refractory fiber cotton 23 ~ 50%；
Hollow ball 10 ~ 20%；
Bonding clay 27 ~ 36%；
Alumine fine powder 0 ~ 6%；
High alumina cement 8 ~ 12%；
Bonding agent 3 ~ 5%；
The hollow ball is alumina hollow ball or fly ash float.
2. low density fire resistant fiber coating according to claim 1, it is characterized in that：Further include water-reducing agent, the diminishing
The dosage of agent is the 0.05 ~ 0.5% of fiber coating total amount.
3. low density fire resistant fiber coating according to claim 1, it is characterized in that：Said components grain graininess is：It is resistance to
Fiery 20 ~ 0mm of cellucotton, 0.074 ~ 0mm of bonding clay, alumine 0.074 ~ 0mm of powder, 0.088 ~ 0mm of high alumina cement.
4. low density fire resistant fiber coating according to claim 1, it is characterized in that：The refractory fiber cotton is silicic acid
Aluminum ceramic fiber cotton.
5. low density fire resistant fiber coating according to claim 1, it is characterized in that：The bonding clay is Guangxi White
Mud.
6. low density fire resistant fiber coating according to claim 1, it is characterized in that：Bonding agent is CMC, HPMC, dextrin
One or more of combination.
7. low density fire resistant fiber coating according to claim 1, it is characterized in that：The water-reducing agent is tripolyphosphate
One or more of sodium, sodium citrate, NNO combinations.
8. a kind of preparation method of low density fire resistant fiber coating according to claim 1, it is characterized in that：The side
Method includes the following steps：
（1）Dispensing：According to the ratio of each component, bonding clay, alumine powder, high alumina cement, combination are weighed respectively
Agent, water-reducing agent and hollow ball are spare；
（2）Batch mixing：Previous step is connect, each component prepared is uniformly mixed, later by uniformly mixed material and refractory fibre
Cotton packs spare after stirring evenly；
（3）Stirring is smeared：Previous step is connect, in use, water is added to carry out secondary agitation while stirring, can be applied after stirring evenly
It smears, amount of water is the 70 ~ 80% of batch mixing material gross weight.
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| CN105622114B true CN105622114B (en) | 2018-06-22 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111116181B (en) * | 2018-10-31 | 2022-04-15 | 南京梅山冶金发展有限公司 | Refractory material lining of torpedo car and construction process |
| CN112266660A (en) * | 2020-10-28 | 2021-01-26 | 淄博雨程节能环保科技有限公司 | Refractory fiber coating produced by utilizing refractory fiber waste and preparation method and application thereof |
| CN112279602A (en) * | 2020-11-09 | 2021-01-29 | 艾文斯（焦作）冶金材料有限责任公司 | Fiber fireproof heat-insulating material and use method thereof |
| CN112960986B (en) * | 2021-03-09 | 2022-10-04 | 宜兴瑞泰耐火材料有限公司 | Heat-preservation coating material for propane dehydrogenation device and preparation method thereof |
| CN114455959A (en) * | 2022-03-01 | 2022-05-10 | 天津固特节能环保科技有限公司 | Fire door brick for furnace and preparation method thereof |
| CN118084519A (en) * | 2024-04-28 | 2024-05-28 | 山东鲁阳保温材料有限公司 | Refractory and heat-insulating aluminum silicate ceramic fiber coating and preparation method thereof |
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| CN101172832A (en) * | 2007-10-23 | 2008-05-07 | 浙江大学 | Light high-strength unburned brick |
| CN101591159A (en) * | 2009-01-05 | 2009-12-02 | 上海利尔耐火材料有限公司 | A kind of heat-insulating fiber coating and preparation method thereof |
| CN102674865A (en) * | 2012-06-01 | 2012-09-19 | 山国强 | Light thermal insulation coating |
| CN103601513A (en) * | 2013-11-18 | 2014-02-26 | 河南海格尔高温材料有限公司 | Alumina hollow ball high-viscosity light refractory coating |
| CN104909780A (en) * | 2015-06-25 | 2015-09-16 | 张婷 | High alumina refractory coating material |
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2015
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101172832A (en) * | 2007-10-23 | 2008-05-07 | 浙江大学 | Light high-strength unburned brick |
| CN101591159A (en) * | 2009-01-05 | 2009-12-02 | 上海利尔耐火材料有限公司 | A kind of heat-insulating fiber coating and preparation method thereof |
| CN102674865A (en) * | 2012-06-01 | 2012-09-19 | 山国强 | Light thermal insulation coating |
| CN103601513A (en) * | 2013-11-18 | 2014-02-26 | 河南海格尔高温材料有限公司 | Alumina hollow ball high-viscosity light refractory coating |
| CN104909780A (en) * | 2015-06-25 | 2015-09-16 | 张婷 | High alumina refractory coating material |
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Effective date of registration: 20210126 Address after: 471322 Baisha Town Industrial Agglomeration Area, Yichuan County, Luoyang City, Henan Province Patentee after: Luoyang Lier Functional Materials Co.,Ltd. Address before: 471023 entrance of Mudan Avenue, zhangheng street, Luolong District, Luoyang City, Henan Province Patentee before: LUOYANG LIER REFRACTORY MATERIAL Co.,Ltd. |