CN100371397C - Refractory composite heat insulating sprayed material - Google Patents
Refractory composite heat insulating sprayed material Download PDFInfo
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- CN100371397C CN100371397C CNB2005100179883A CN200510017988A CN100371397C CN 100371397 C CN100371397 C CN 100371397C CN B2005100179883 A CNB2005100179883 A CN B2005100179883A CN 200510017988 A CN200510017988 A CN 200510017988A CN 100371397 C CN100371397 C CN 100371397C
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Abstract
The present invention relates to refractory furnace composite heat insulating sprayed paint which is suitable for high temperature furnaces or other heterotype and rotary thermal power equipment, etc. Sepiolite, brucite, blue asbestos, basalt, apyre, quartz and refractory bonding powder which are used as base materials are previously made into dry powdered heat insulating spraying powder. Then, at a construction site, the dry powdered heat insulating spraying powder is mixed with water to prepare the refractory furnace composite heat insulating sprayed paint. The present invention has the advantages of low heat conductivity coefficient, good heat insulating property, high bonding strength, hot and cold construction, easy solidification and shaping, low composite cost and convenient construction. The thickness of a sprayed heat insulating layer is economical and reasonable, and is only about one half of that of a traditional heat insulating material. At the same time, a sealed whole which is formed by the heat insulating layer has the advantages of good adhesion, firm bonding, no cracking, no drop, no pulverization, no corrosion to equipment, etc.
Description
Technical field
The invention belongs to the lagging material technical field, especially for a kind of refractory composite heat insulating sprayed material of heat power equipments such as high temperature kiln or other abnormal shape, rotation.
Background technology
At present, industrial used heat insulating coatings is of a great variety both at home and abroad, but in the heat-insulation and heat-preservation of heat power equipments such as high temperature kiln or other abnormal shape, rotation, existing thermal insulation coatings is not very good on technical feature and result of use, as: the thermal conductivity height that has, high thermal resistance is poor, heat insulation coating is thick, materials are many, cost is high; The lagging material insufficient strength that has, easy to crack behind the construction molding; What have is not all reaching the application requiring that ideal adapts to kiln on the use temperature and on the cohesive force, thereby has influenced device heat efficiency.The thermal insulation coatings that also has is the thick-pasty body for preparing when dispatching from the factory, and its moisture weight accounts for more than 2～3 times of weight of material, stores not only in enormous quantities, remote shipping and producer and brings great inconvenience, has also increased a large amount of transportation storage costs simultaneously.And, owing to paste thermal insulation coatings preservation period is short,, causes the bond effect difference of thermal insulation coatings thus or the disadvantage that thermal insulation layer is not smeared occurs in case shipping at a distance makes thermal insulation coatings produce rotten or appearance dehydration phenomenon easily.
Summary of the invention
The purpose of this invention is to provide that a kind of cohesive strength height, thermal conductivity are low, good heat insulating, can realize under the hot environment state that heat is protected, realize cold guarantor under the low temperature, refractory composite heat insulating sprayed material applied widely.
Realize that the technical scheme that purpose of the present invention is taked is: this heat insulating sprayed material is by as the sepiolite of base-material, brucite, krocodylite and as after the basalt of aggregate, red post rock, quartzite and the resistant to elevated temperatures bonding powder proportioning, make the heat insulating sprayed powder of dry powder in advance, form with the water mixed preparing then, the raw materials used weight percent of heat insulating sprayed powder is: sepiolite 20～30%, brucite 5～10%, krocodylite 15～20%, basalt 5～15%, red post rock 10～20%, quartzite 10～20%, bonding powder 0.5～2%; The weight proportion of heat insulating sprayed powder and water is: 1: 2～2.5.
Described bonding powder is formulated with 1: 0.05～0.2 weight ratio by biphosphate aluminium powder or sulfuric acid aluminium powder and pearlstone micro mist or quartzite micro mist.
In heat insulating sprayed material of the present invention, the sepiolite that adopts in the base-material is the high fibrous magnesium silicate clay mineral that a kind of white, light weight can be bubbled through the water column, and has Heat stability is good, the characteristic of formative nature and good insulating; Krocodylite also is a kind of silicate minerals with pliable and tough fiber, and the adsorptivity of this raw material is very strong, have anti-chemical poisonous substance and purification atom pollutant performance, and acid resistance is strong; Brucite belongs to non-metallic minerals, is the fiber material of a kind of fire-retardant, fire prevention, enhancing, reinforcement, is characterized in the whiteness height, unit weight is little, cost is low, the lagging material of alternative asbestos.And the basalt that adopts in the aggregate, andalusite mine material are pore shape structured material, and its matrix is the crystalloid structure of particulate, belongs to acidproof stone material; Quartzite is a kind of siliceous raw material of stable chemical performance.In the present invention, made full use of the characteristic that crystalline structure in the material and the fiber in the material can ensure bonding strength, the base-material that will have fibrous texture makes up with the aggregate with pore shape structure, and mix and join resistant to elevated temperatures bonding powder, through forming the hydration reaction of slurry, fiber in the base-material is penetrated in the hole of the aggregate with pore columnar structure, form a kind of chain relay that is interweaved and constitutes afterwards, can increase the tensile strength and the cohesive force of heat insulating sprayed material.The heat-insulating property that characteristic that self has in view of these materials and combination back form makes heat insulating sprayed material of the present invention possess that stronger heat is protected, cold guarantor's function, and its heat insulation degree reaches as high as about 1300 ℃, cold insulation degree minimum reaching-50 ℃.Can adapt to the insulation requirement of various heat power equipments and various low temperature facilities fully, therefore, widen the range of application of heat insulating sprayed material.Thereby obtain that a kind of heat preservation and insulation is good, thermal conductivity is low, can under the hot environment state, realize the spray coating heat preservation of heat power equipments such as kiln, simultaneously also can be under normal temperature or low temperature, be used for smearing of other lagging facility, and heat insulating sprayed material applied widely.
The refractory composite heat insulating sprayed material of making according to described raw material and proportioning, not only good heat insulating, tensile strength height, comprehensive cost low, be convenient to advantages such as construction; And the cold and hot construction of energy, easy curing molding, the insulation layer thickness economical rationality of its spraying, it only is about 1/2 of traditional lagging material, both alleviated the extra loading of equipment, easily equipment flaw detection maintenance again, simultaneously, the sealing shape integral body that thermal insulation layer forms, sticking power is good, bonding firmly, do not ftracture, do not come off, not efflorescence, etching apparatus not.And the spraying insulation layer surface be creamy white, smooth, smooth, attractive in appearance, compare with traditional thermal insulation coatings, heat insulating sprayed material of the present invention uses coating thin, good airproof performance, thermal conductivity is low, after tested, thermal conductivity is 0.05W/m.k under 300 ℃ of constant temperature, than low 2.8 times of the 0.14W/m.k of national regulation.And the equipment thermal losses reduces greatly after the insulation, has both saved the energy, has improved operating environment again.This heat insulating sprayed material can be widely used in the heat-insulation and heat-preservation of various heat power equipments of department such as chemical industry, electrical building, kiln, oil and low temperature facility.Its material therefor wide material sources, cheap, therefore, can reduce the cost of raw material.
Embodiment
Composite heat insulating sprayed material of the present invention, the work in-process pulverulent material of directly purchasing on raw materials used whole employings market then according to described proportion of raw materials amount, is hybridly prepared into resistant to elevated temperatures composite heat insulating sprayed powder goods according to conventional preparation method with it.During use, only need powder-material is transported to the working-yard, with 1: 2～2.5 weight ratio, add the water scene and mix and stir form slurry, can use by heat insulating sprayed powder and water.In the present invention, heat insulating sprayed material being made the dry powder material in advance, mainly is to be used to prevent that the material generation is rotten, and convenient transportation, packing and preservation, and easy construction.In the preparation of heat insulating sprayed powder, specifically can prepare according to the weight proportion of following embodiment.
Embodiment one
Described heat insulating sprayed powder is to be by weight percent: sepiolite 25%, brucite 9%, krocodylite 18%, basalt 12%, red post rock 20%, quartzite 15%, bonding powder 1% formulated.
Embodiment two
Described heat insulating sprayed powder is to be by weight percent: sepiolite 30%, brucite 10%, krocodylite 20%, basalt 13%, red post rock 10%, quartzite 15%, bonding powder 2% are formulated.
Embodiment three
Described heat insulating sprayed powder is to be by weight percent: sepiolite 20%, brucite 8.5%, krocodylite 15%, basalt 15%, red post rock 20%, quartzite 20%, bonding powder 1.5% are formulated.
In heat insulating sprayed material of the present invention, because that spraying contains in the powder is anticorrosion, the function and the stronger adsorptivity and the cohesive force of oil resistant, acid-and base-resisting, therefore, do not need before the construction equipment is carried out rotproofing, but the heat insulating sprayed powder of powdered is transported to the working-yard, after adding water and mixing and stirring form slurry, can directly spray or spread upon on the equipment, not only be incubated but also anticorrosion.In concrete the use, when needs preparation spray material, the weight ratio of heat insulating sprayed powder and water is 1: 2.5, promptly get after evenly by the proportioning mix and to spray slurry, can be under the condition of high temperature, directly kiln or other heat power equipment are carried out the spraying of thermal insulation layer by the special-purpose spraying machine that is equipped with, not only easy construction, and also construction quality is secure.When the coating of needs preparations thermal insulation layer, the weight ratio of heat insulating sprayed powder and water is 1: 2, promptly gets the thick-pasty coating by the proportioning mix after even, can be under the normal temperature state, by manually carrying out smearing of thermal insulation layer.
Further specify the example of the present invention in concrete application process below by tabulation: with the big noisy breastwork of 400t level float glass smelting kiln melting end, positions such as the regenerator top is noisy insulation is example, and table 1 has provided heat insulating sprayed material of the present invention and different insulating loading and the thermosteresis data of other lagging material under same use temperature compare.
Table 1
| Insulation construction | Insulation layer thickness (mm) | 1m 3Thermal insulation layer loading (kg) | Thermosteresis reduces (%) |
| 256mm light silicious brick+50mm concrete | 306 | 263 | 77.6 |
| 40m sealing ply+65mm light silicious brick+100mm is siliceous moldable | 205 | 226 | 73.6 |
| 65mm light silicious brick+70mm refractory composite heat insulating coating | 135 | 30 | 75 |
Table 2 has been listed the changing conditions of insulation front and back each position surface temperature of melting furnaces and heavy oil consumption.Use checking by the user, heavy oil 6～9 can be saved every day in the molten kiln insulation of 400t level float glass process back, is worth 10,000 yuan, and insulation is invested within 3 months just recoverable.
Table 2
| The position | Average surface temperature (℃) | Heat dissipation capacity (MJ.h -1) | Heavy oil consumption (kg.h -1) | |
| The regenerator top is noisy | Difference behind the insulation preincubation | 357 108 249 | 2079.8 496.3 1583.5 | 52.6 11.5 41.1 |
| Melting end noisy greatly (melting area) | Difference behind the insulation preincubation | 386 115 271 | 3095.3 738.2 2357.1 | 78.8 20.1 58.7 |
| Melting end noisy greatly (settling section) | Difference behind the insulation preincubation | 293 95 198 | 1346.4 364. 982.4 | 35.9 23 12.9 |
| The fining end breastwork | Difference behind the insulation preincubation | 189 73 116 | 248.8 77.8 171 | 6.6 2.2 4.4 |
Claims (5)
1. refractory composite heat insulating sprayed material, it is characterized in that: be by as the sepiolite of base-material, brucite, krocodylite and as after the basalt of aggregate, red post rock, quartzite and the resistant to elevated temperatures bonding powder proportioning, make the heat insulating sprayed powder of dry powder in advance, form with the water mixed preparing then, the raw materials used weight percent of heat insulating sprayed powder is; Sepiolite 20～30%, brucite 5～10%, krocodylite 15～20%, basalt 5～15%, red post rock 10～20%, quartzite 10～20%, bonding powder 0.5～2%; The weight proportion of heat insulating sprayed powder and water is: 1: 2～2.5.
2. refractory composite heat insulating sprayed material according to claim 1 is characterized in that: described bonding powder is formulated with 1: 0.05～0.2 weight proportion by biphosphate aluminium powder or sulfuric acid aluminium powder and pearlstone micro mist or quartzite micro mist.
3. refractory composite heat insulating sprayed material according to claim 1 and 2 is characterized in that: the weight percent of described heat insulating sprayed powder is: sepiolite 25%, brucite 9%, krocodylite 18%, basalt 12%, red post rock 20%, quartzite 15%, bonding powder 1%.
4. refractory composite heat insulating sprayed material according to claim 1 and 2 is characterized in that: the weight percent of described heat insulating sprayed powder is: sepiolite 30%, brucite 10%, krocodylite 20%, basalt 13%, red post rock 10%, quartzite 15%, bonding powder 2%.
5. refractory composite heat insulating sprayed material according to claim 1 and 2 is characterized in that: the weight percent of described heat insulating sprayed powder is: sepiolite 20%, brucite 8.5%, krocodylite 15%, basalt 15%, red post rock 20%, quartzite 20%, bonding powder 1.5%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100179883A CN100371397C (en) | 2005-09-09 | 2005-09-09 | Refractory composite heat insulating sprayed material |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100179883A CN100371397C (en) | 2005-09-09 | 2005-09-09 | Refractory composite heat insulating sprayed material |
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| Publication Number | Publication Date |
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| CN1740240A CN1740240A (en) | 2006-03-01 |
| CN100371397C true CN100371397C (en) | 2008-02-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2005100179883A Expired - Fee Related CN100371397C (en) | 2005-09-09 | 2005-09-09 | Refractory composite heat insulating sprayed material |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101343426B (en) * | 2008-09-09 | 2010-06-16 | 昆明理工大学 | Flame-proof paint of natural mineral powder |
| CN102390918A (en) * | 2011-08-06 | 2012-03-28 | 蚌埠玻璃工业设计研究院 | Inner wall coating layer for thermal storage chamber of the glass furnace |
| CN104672961B (en) * | 2015-03-12 | 2017-01-11 | 孙昌印 | Mineral powder coating and method for preparing coating layer by adopting coating |
| CN110256879B (en) * | 2019-07-10 | 2020-09-04 | 兰州大学 | Environment-friendly water-based inorganic flame-retardant coating |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1067667A (en) * | 1991-06-08 | 1993-01-06 | 中国科学院广州能源研究所 | A kind of manufacture method of insulating mold coating |
| CN1109089A (en) * | 1995-01-27 | 1995-09-27 | 田震 | Fireproof and heat insulating coating and its preparation |
| CN1124756A (en) * | 1994-12-15 | 1996-06-19 | 王春生 | Dry-powder insulating mold coating and preparing process thereof |
| CN1126985A (en) * | 1993-07-09 | 1996-07-17 | 欧文斯-康宁建筑产品(英国)有限公司 | Compositions for high temperature fiberisation |
| CN1249284A (en) * | 1998-09-26 | 2000-04-05 | 吴火成 | Multifunctional insulating composite felt (cream) |
-
2005
- 2005-09-09 CN CNB2005100179883A patent/CN100371397C/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1067667A (en) * | 1991-06-08 | 1993-01-06 | 中国科学院广州能源研究所 | A kind of manufacture method of insulating mold coating |
| CN1126985A (en) * | 1993-07-09 | 1996-07-17 | 欧文斯-康宁建筑产品(英国)有限公司 | Compositions for high temperature fiberisation |
| CN1124756A (en) * | 1994-12-15 | 1996-06-19 | 王春生 | Dry-powder insulating mold coating and preparing process thereof |
| CN1109089A (en) * | 1995-01-27 | 1995-09-27 | 田震 | Fireproof and heat insulating coating and its preparation |
| CN1249284A (en) * | 1998-09-26 | 2000-04-05 | 吴火成 | Multifunctional insulating composite felt (cream) |
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| CN1740240A (en) | 2006-03-01 |
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Owner name: XINYANG TIANYI ENERGY SAVING TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: NANYANG TIANYI HEAT INSULATING REFRACTORY MATERIAL CO., LTD. Effective date: 20120815 |
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Free format text: CORRECT: ADDRESS; FROM: 474350 NANYANG, HENAN PROVINCE TO: 464100 XINYANG, HENAN PROVINCE |
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Effective date of registration: 20120815 Address after: 464100 Henan Pingqiao District, Xinyang Province five mile Private Economic Experimental Zone Patentee after: Xinyang Tianyi Energy Saving Technology Co., Ltd. Address before: 474350, Garden Road, Neixiang County, Henan, Nanyang Patentee before: Nanyang Tianyi Thermal Refractory Material Co., Ltd. |
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Address after: 464100 Henan Pingqiao District, Xinyang Province five mile Private Economic Experimental Zone Patentee after: XINYANG TIANYI ENERGY SAVING TECHNOLOGY CO., LTD. Address before: 464100 Henan Pingqiao District, Xinyang Province five mile Private Economic Experimental Zone Patentee before: Xinyang Tianyi Energy Saving Technology Co., Ltd. |
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