CN1186298C - Compact ceramic fiber spraying lining and its working process - Google Patents
Compact ceramic fiber spraying lining and its working process Download PDFInfo
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- CN1186298C CN1186298C CNB031279031A CN03127903A CN1186298C CN 1186298 C CN1186298 C CN 1186298C CN B031279031 A CNB031279031 A CN B031279031A CN 03127903 A CN03127903 A CN 03127903A CN 1186298 C CN1186298 C CN 1186298C
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- ceramic fiber
- high temperature
- lining
- powder
- dense form
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Abstract
The present invention relates to a ceramic fiber spraying lining and a construction method thereof. The ceramic fiber spraying lining is composed of ceramic fiber and a high temperature binding agent, wherein the high temperature binding agent contains 2.8 to 3.2 wt% of fine Al2O3 powder, 3.3 to 3.7 wt% of fine SiO2 powder, 0.9 to 1.1 wt% of nanometer level Al2O3 powder, 0.9 to 1.1 wt% of ammonia water and water as the rest. In construction process of the ceramic fiber spraying lining, a plurality of atomizing nozzles are uniformly arranged around a spray gun; the finished product of the high temperature binding agent is pumped into an atomizing chamber through a high pressure pump and sprayed with the spray-shaped binding agent via the atomizing nozzles; after being mixed with the ceramic fiber which is sprayed from the spray gun, the spray-shaped binding agent is directly sprayed to the surface of operation to form the compact ceramic fiber spraying lining integrally. The compact ceramic fiber spraying lining of the present invention has the advantages of high strength, good waterproof property, strong thermal shock resistance, convenient construction and low cost. The compact ceramic fiber spraying lining is suitable for the spraying construction of the refractory linings of various industrial kilns and thermal insulation layers outside towers, jars and containers.
Description
Technical field
The present invention relates to a kind of ceramic fiber gunite lining and constructional method thereof, especially a kind of dense form ceramic fiber gunite lining and constructional method thereof, mainly be applicable to the refractory liner of various Industrial Stoves, also be applicable to the spraying application of tower, jar, container external thermal insulation.
Background technology
In recent years, ceramic fiber is high temperature resistant with it, vibration resistance, thermal insulation, sound-absorbing and advantage such as in light weight, part replaces brick structure and mould material and becomes fire-resistant, insulation, heat insulation, sound insulation, fp preferred material, and is used widely in industries such as metallurgy, oil, chemical industry, machinery, electronics, building, light industrys.Simultaneously, the construction technology of ceramic fiber is also sought new development in continuous renewal is improved.
It is the novel construction process that grew up in recent years that ceramic fiber adopts the spraying method construction.It has overcome fritter fire-retardent fiber felt-rug furnace lining and acupuncture volume blanket " Z " shape folded piece serves as a contrast shortcomings such as globality is poor, seam is many, easy directional retraction produces the perforation seam, difficulty of construction is big, long in time limit, help improving the thermo-efficiency of Industrial Stoves, for industry energy conservation synergy provides a good approach.Therefore at present but because the wedding agent technology in the spraying application remains in some problems, also to exist intensity low for the ceramic fiber gunite lining, and subject to mechanical collision and damage, water funk immersion, anti-thermal shock is poor, repairs problems such as difficulty is big.
Summary of the invention
The objective of the invention is to overcome that the gunite lining intensity that exists in the existing ceramic fiber spraying coating process is low, problems such as water-repellancy and heat-shock resistance difference, a kind of dense form ceramic fiber gunite lining and spraying coating process thereof are provided.
A kind of dense form ceramic fiber gunite lining provided by the present invention is made up of ceramic fiber and high temperature adhesives, and wherein high temperature adhesives includes Al
2O
3Micro mist, SiO
2Micro mist, nano level Al
2O
3Powder, ammoniacal liquor and water, the weight percent of each component is: Al
2O
3Micro mist 2.8-3.2%, SiO
2Micro mist 3.3-3.7%, nano level Al
2O
3Powder 0.9-1.1%, ammoniacal liquor 0.9-1.1%, admixture is an amount of, and all the other are water; The percentage ratio sum of each component concentration is 100%.Can also include nano level ZrO in the described high temperature adhesives
2Powder or nano level SiO
2Powder.
The construction technology of the above-mentioned dense form ceramic fiber of making provided by the present invention gunite lining is: at first by spraying device special ceramic fiber is carried out pre-treatment, be transported in the spray gun with high pressure positive blower again and spray, at the spray gun periphery several atomizing nozzles are set evenly, described high temperature adhesives finished product is squeezed into spray chamber by high-pressure pump, spray vaporific wedding agent by atomizing nozzle, the ceramic fiber that sprays in this vaporific wedding agent and the spray gun is after the air high speed is mixed, inject directly to the scope of operation, once shaped is a dense form ceramic fiber gunite lining.
Gunite lining by dense form ceramic fiber provided by the present invention mainly is applicable to the directly refractory liner of various Industrial Stoves that contact with furnace lining, no particle airflow scouring of no solid materials, also is applicable to the spraying application of the external thermal insulation of tower, jar, container.When the gunite lining of dense form ceramic fiber of the present invention during as the refractory liner of various kilns, the shape ceramic fiber cotton that looses forms the three-dimensional net structure furnace lining in the disposable integral spraying process, it is compared with the fibre furnace lining that the fibre furnace lining and the traditional fibre spray-finishing construction method of other constructional method formation form, and has the following advantages:
1, avoids under the high temperature producing directional retraction-improved the thermo-efficiency of Industrial Stoves, prolong the work-ing life (prolonging 3-5 than the traditional fibre gunite lining life-span) of fibre furnace lining.
2, intensity height, anti-airflow scouring ability strong-can resist slight mechanical collision, be not only applicable to the more weak positions of airflow scouring such as radiation chamber, and be applicable to the stronger positions of airflow scouring such as convection chamber, chimney.
3, the reduction of erection time-efficiently solve the construction difficult problem at the special-shaped position of Industrial Stoves, accelerate speed of application, can under the condition of not removing boiler tube, construct.
4, opposing water logging bubble performance-lining has certain opposing water logging bubble performance behind high temperature sintering.
5, rationally with material, reduce cost and one can adopt multiple fiber layering composite spraying according to the process furnace operating mode.
6, be convenient to old furnace modification and modular repair-in the reducing energy consumption and repairing process of a large amount of tubular ovens of petrochemical industry active service, need not dismantle that former boiler tube can be done entire fibre lining or at bricking, mould material furnace lining surface sprayed fire-resistant fiber table lining.
7, Gas permeability little-can effectively stop flue gas to corrode, improve anti-flue gas and corrode use properties.
8, heat-shock resistance height-water quick cooling method test does not have breakage 50 times, improves the frequent resistance to cleavage that uses, and increases the service life.
9, maintenance easy-local or a small amount of repairing can adopt material repair material of the same race manually directly to repair not using under the appointed condition.
Description of drawings
Fig. 1 is high temperature adhesives technological process of production figure among the present invention;
Fig. 2 is the construction flow chart of dense form ceramic fiber gunite lining of the present invention.
Embodiment
Embodiment one:
By the dense form ceramic fiber gunite lining that ceramic fiber and high temperature adhesives are formed, high temperature adhesives includes Al
2O
3Micro mist, SiO
2Micro mist, nano level Al
2O
3Powder, ammoniacal liquor and water, wherein the weight percent of each component is: Al
2O
3Micro mist 2.8%, SiO
2Micro mist 3.5%, nano level Al
2O
3Powder 1.0%, ammoniacal liquor 0.9%, water 91.8%, admixture is an amount of.Each component concentration percentage ratio sum is 100%.
The compound method of high temperature adhesives as shown in Figure 1, with the Al of described ratio
2O
3Micro mist, SiO
2Micro mist mixes and stirs, and adds ammoniacal liquor and water, puts into stainless steel cauldron, and with nano level Al
2O
3Powder and admixture are together put into stainless steel cauldron, stir 2 hours under 110 ℃ of temperature, make the high temperature adhesives finished product.
The construction technology of the dense form ceramic fiber gunite lining of present embodiment as shown in Figure 2, ceramic fiber is carried out wetting in advance, be transported in the spray gun with high pressure positive blower again and spray, at the spray gun periphery several atomizing nozzles are set evenly, described high temperature adhesives finished product is squeezed into spray chamber by high-pressure pump, spray vaporific wedding agent by atomizing nozzle, the ceramic fiber that sprays in this vaporific wedding agent and the spray gun is after the air high speed is mixed, inject directly to the scope of operation, once shaped dense form ceramic fiber gunite lining.
In above-mentioned construction technology, the air pressure of spray chamber is 0.2-0.25MPa, and the pressure of high temperature adhesives moistener is 0.3-0.4MPa, and spray gun is 0.5-1.0m apart from the distance on scope of operation surface; The volume density of dense form ceramic fiber gunite lining is 0.3-0.49g/cm
3
Embodiment two:
By the dense form ceramic fiber gunite lining that ceramic fiber and high temperature adhesives are formed, high temperature adhesives includes Al
2O
3Micro mist: 3.0%, SiO
2Micro mist: 3.3%, nano level Al
2O
3Powder: 0.9%, ammoniacal liquor: 1.1%, nano level SiO
2Powder and nano level ZrO
2Powder: trace, admixture: an amount of, water: all the other, each component concentration percentage ratio sum of high temperature adhesives is 100%.
The construction technology of the compound method of high temperature adhesives and dense form ceramic fiber gunite lining is with embodiment one.
Embodiment three:
High temperature adhesives includes Al
2O
3Micro mist: 3.2%, SiO
2Micro mist: 3.5%, nano level Al
2O
3Powder: 0.9%, ammoniacal liquor: 1.1%, water: 91.4%, admixture: an amount of.Each component concentration percentage ratio sum is 100%.
The construction technology of the compound method of high temperature adhesives and dense form ceramic fiber gunite lining is with embodiment one.
Claims (7)
1, a kind of dense form ceramic fiber gunite lining is made up of ceramic fiber and high temperature adhesives, and it is characterized in that: described high temperature adhesives includes Al
2O
3Micro mist, SiO
2Micro mist, nano level Al
2O
3Powder, ammoniacal liquor and water, each weight percentages of components of described high temperature adhesives is:
Al
2O
3Micro mist 2.8-3.2%
SiO
2Micro mist 3.3-3.7%
Nano level Al
2O
3Powder 0.9-1.1%
Ammoniacal liquor 0.9-1.1%
Admixture is an amount of
Water all the other
Each component concentration percentage ratio sum of described high temperature adhesives is 100%.
2, dense form ceramic fiber gunite lining as claimed in claim 1 is characterized in that: also include nano level ZrO in the described high temperature adhesives
2Powder or nano level SiO
2Powder.
3, dense form ceramic fiber gunite lining as claimed in claim 1, it is characterized in that: the compound method of described high temperature adhesives is: with the Al of described ratio
2O
3Micro mist, SiO
2Micro mist mixes and stirs, and adds ammoniacal liquor and water, puts into stainless steel cauldron, and with nano level Al
2O
3Powder and admixture are together put into stainless steel cauldron, stir 2 hours under 110 ℃ of temperature, make the high temperature adhesives finished product.
4, a kind of construction technology of making the described dense form ceramic fiber of claim 3 gunite lining, carry out wetting to ceramic fiber, be transported in the spray gun with high pressure positive blower again and spray, it is characterized in that: several atomizing nozzles evenly are set at the spray gun periphery, described high temperature adhesives finished product is squeezed into spray chamber by high-pressure pump, spray vaporific wedding agent by atomizing nozzle, the ceramic fiber that sprays in this vaporific wedding agent and the spray gun is after the air high speed is mixed, inject directly to the scope of operation, once shaped dense form ceramic fiber gunite lining.
5, the construction technology of dense form ceramic fiber gunite lining as claimed in claim 4 is characterized in that: the air pressure of described spray chamber is 0.2-0.25MPa.
6, the construction technology of dense form ceramic fiber gunite lining as claimed in claim 4 is characterized in that: described spray gun is 0.5-1.0m apart from the distance on scope of operation surface.
7, dense form ceramic fiber gunite lining as claimed in claim 1, it is characterized in that: the volume density of described gunite lining is 0.3-0.49g/cm
3
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031279031A CN1186298C (en) | 2003-04-23 | 2003-04-23 | Compact ceramic fiber spraying lining and its working process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031279031A CN1186298C (en) | 2003-04-23 | 2003-04-23 | Compact ceramic fiber spraying lining and its working process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1458126A CN1458126A (en) | 2003-11-26 |
| CN1186298C true CN1186298C (en) | 2005-01-26 |
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ID=29430430
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB031279031A Expired - Fee Related CN1186298C (en) | 2003-04-23 | 2003-04-23 | Compact ceramic fiber spraying lining and its working process |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4026876A4 (en) * | 2020-11-10 | 2023-01-11 | Luyang Energy-Saving Materials Co., Ltd. | High-temperature-resistant nano composite coating and preparation method therefor, and small-bag flexible packaged coating |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101628806B (en) * | 2009-08-05 | 2012-06-27 | 郑州九环科贸有限公司 | Nanometer composite ceramic lining material and preparation method thereof |
| CN103570371A (en) * | 2012-08-01 | 2014-02-12 | 苏州宏久航空防热材料科技有限公司 | Preparation method for improving uniform compactness of oxide fiber toughened silica ceramics-base composite |
| CN105296912B (en) * | 2015-10-30 | 2018-02-09 | 航天材料及工艺研究所 | A kind of arc spraying filament material and its preparation, spraying method |
| CN110006258A (en) * | 2019-05-05 | 2019-07-12 | 天津南极星隔热材料有限公司 | A kind of refractory lining and burner anti-thermal shock protective layer of rotary kiln |
| CN112592168A (en) * | 2021-02-08 | 2021-04-02 | 淄博雨程节能环保科技有限公司 | Plastic ceramic fiber product |
-
2003
- 2003-04-23 CN CNB031279031A patent/CN1186298C/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4026876A4 (en) * | 2020-11-10 | 2023-01-11 | Luyang Energy-Saving Materials Co., Ltd. | High-temperature-resistant nano composite coating and preparation method therefor, and small-bag flexible packaged coating |
| US11926762B2 (en) | 2020-11-10 | 2024-03-12 | Luyang Energy-Saving Materials Co., Ltd. | High-temperature nano-composite coating and preparation method thereof, and small bag flexible packaging coating |
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| Publication number | Publication date |
|---|---|
| CN1458126A (en) | 2003-11-26 |
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Granted publication date: 20050126 Termination date: 20110423 |