CN104086190B - A kind of kiln head cover spray material - Google Patents
A kind of kiln head cover spray material Download PDFInfo
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- CN104086190B CN104086190B CN201410293976.2A CN201410293976A CN104086190B CN 104086190 B CN104086190 B CN 104086190B CN 201410293976 A CN201410293976 A CN 201410293976A CN 104086190 B CN104086190 B CN 104086190B
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Abstract
The present invention relates to a kind of refractory materials, particularly relate to a kind of kiln head cover spray material, be intended to solve in prior art the problem adopting the compound lining life-span of calcium silicate board and anti-peeling high aluminium brick composition low.A kind of kiln head cover spray material, 1 ~ 3mm mullite aggregate of 40 ~ 48 parts, the kyanite of 20 ~ 30 parts, the mullite fine powder of 10 ~ 20 parts, the electric smelting aluminous cement fine powder of 20 ~ 30 parts, the accelerator for hardening slaked lime of 0.1 ~ 0.3 part, the composite phosphate of 1.0 ~ 1.5 parts, the composite superfine powder of 8 ~ 15 parts, the organic explosion-proof fiber of 0.15 ~ 0.3 part is comprised, the water of 6 ~ 10 parts according to quality share.The present invention has higher adhesive rate, large adhesion strength and lower water content, can ensure not produce in spraying process to collapse, do not crack in bake process and peel off, enough intensity is remained in the heat-processed such as low temperature, middle gentle high temperature, remain volume stability, fire-resistant abrasion-proof resistance to fouling is good.
Description
Technical field
The present invention relates to a kind of refractory materials, particularly relate to a kind of kiln head cover spray material.
Background technology
Kiln head cover is positioned at the discharge end of rotary kiln, and coal injection pipe gos deep in kiln body through kiln head cover; This position is by wearing and tearing to a certain degree, and refractory surface has dust skinning and is subject to flame radiaton; Along with rotary kiln is to maximization future development, in kiln head cover, empty span is also increasing, the effect of and thermal shock frequent by wear-resisting, cold and hot sudden change, adopts the compound lining of calcium silicate board and anti-peeling high aluminium brick composition to use and just frequently dropped less than six months, poor effect.
The kiln head cover of cement kiln is domes, and must make complex-shaped wooden unit before refractory castable cast, have artificial construction to complete, speed of application is slow, and construction quality also cannot ensure, affects its work-ing life, needs the time of maintenance also very long after construction.
Summary of the invention
The invention provides a kind of kiln head cover spray material, be intended to solve in prior art the problem adopting the compound lining life-span of calcium silicate board and anti-peeling high aluminium brick composition low.
In order to solve above technical problem, the present invention is achieved through the following technical solutions: a kind of kiln head cover spray material, 1 ~ 3mm mullite aggregate of 40 ~ 48 parts, the kyanite of 20 ~ 30 parts, the mullite fine powder of 10 ~ 20 parts, the electric smelting aluminous cement fine powder of 20 ~ 30 parts, the accelerator for hardening slaked lime of 0.1 ~ 0.3 part, the composite phosphate of 1.0 ~ 1.5 parts, the composite superfine powder of 8 ~ 15 parts, the organic explosion-proof fiber of 0.15 ~ 0.3 part is comprised, the water of 6 ~ 10 parts according to quality share.
Further, 1 ~ 3mm mullite aggregate, 27 parts of kyanites, the mullite fine powder of 15 parts, the electric smelting aluminous cement fine powder of 25 parts, the accelerator for hardening slaked lime of 0.2 part, the composite phosphate of 1.2 parts, the composite superfine powder of 10 parts, organic explosion-proof fibers of 0.2 part of 42 parts are comprised, the water of 7 parts according to quality share; Adopt this quality share ratio, the price of spray material is lower, and better performances.
Further, 1 ~ 3mm mullite aggregate, 20 parts of kyanites, the mullite fine powder of 10 parts, the electric smelting aluminous cement fine powder of 30 parts, the accelerator for hardening slaked lime of 0.3 part, the composite phosphate of 1.5 parts, the composite superfine powder of 15 parts, organic explosion-proof fibers of 0.3 part of 40 parts are comprised, the water of 10 parts according to quality share; Adopt this quality share ratio, spray material is most economical.
Further, 1 ~ 3mm mullite aggregate, 30 parts of kyanites, the mullite fine powder of 20 parts, the electric smelting aluminous cement fine powder of 20 parts, the accelerator for hardening slaked lime of 0.1 part, the composite phosphate of 1.0 parts, the composite superfine powder of 8 parts, organic explosion-proof fibers of 0.15 part of 48 parts are comprised, the water of 6 parts according to quality share; The performance of spray material is best.
Further, described kyanite is not more than 5mm by granularity, and wherein the ratio of granularity to be the kyanite of 1 ~ 5mm and granularity the be kyanite total mass of 0 ~ 1mm is 2/5 ~ 3/5; Fine particle can improve the plasticity-required by adhesivity; Coarse particles can time spray repair layer more stable, improve spray repair layer density and erosion resistance; When maximum value higher than this scope of the ratio of volume, in spraying process, too much can there is higher segregation shape in coarse particles in the duct, and rebound degree can be caused to rise, and increases the loss of material; When minimum value lower than this scope of the ratio of volume, fine particle content too much can increase drying period, the peeling off quantity and make spray repair layer become unstable of coating.
Further, described composite superfine powder is made up of Reactive alumina and silicon powder;-Si-OH the micelle that silicon powder is formed after meeting water plays bonding effect under low-temperature condition; Activated alumina has unimodal activity, reunites, with silicon powder with the use of forming column, acicular mullite crystal under the high temperature conditions, thus make spray material obtain better high-temperature behavior without crystal.
Compared with prior art advantage of the present invention is: the present invention with mullite aggregate, kyanite and mullite fine powder for main raw material; Add electric smelting aluminous cement while playing cohesive action, contribute to improving heat resistance; By adding the slaked lime of 0.1 ~ 0.3 part as accelerator for hardening, the nucleation time of hydrated cementitious mineral facies can be shortened, promoting the formation of hydrated minerals phase and growing up; Add the composite phosphate water reducer of 1.0 ~ 1.5 parts, make the amount of water of spray material at 6 ~ 10 parts, decrease amount of water, the volume density of spray material is increased substantially, and void content significantly reduces; The composite superfine powder of adding 8 ~ 15 parts can improve low temperature and the hot strength of spray material, can contribute to improving heat resistance and adhesion property while playing good combination effect; Be added with the wet strength that explosion-proof fiber can increase sprayed coating, can realize after spraying completes, can light a fire is rapidly heated resumes production, and ensure that the long-term continuous and steady operation of rotary kiln.
The present invention has higher adhesive rate, large adhesion strength and lower water content, can ensure not produce in spraying process to collapse, do not crack in bake process and peel off, enough intensity is remained in the heat-processed such as low temperature, middle gentle high temperature, remain volume stability, fire-resistant abrasion-proof resistance to fouling is good.
Embodiment
Embodiment one:
A kind of kiln head cover spray material, 1 ~ 3mm mullite aggregate, 27 parts of kyanites, the mullite fine powder of 15 parts, the electric smelting aluminous cement fine powder of 25 parts, the accelerator for hardening slaked lime of 0.2 part, the composite phosphate of 1.2 parts, the composite superfine powder of 10 parts, organic explosion-proof fibers of 0.2 part of 42 parts are comprised, the water of 7 parts according to quality share; Described kyanite is not more than 5mm by granularity, and wherein the ratio of granularity to be the kyanite of 1 ~ 5mm and granularity the be kyanite total mass of 0 ~ 1mm is 2/5 ~ 3/5; Described composite superfine powder is made up of Reactive alumina and low pore silicon powder.
Embodiment two:
Be with the difference of embodiment one: the 1 ~ 3mm mullite aggregate, 20 parts of kyanites, the mullite fine powder of 10 parts, the electric smelting aluminous cement fine powder of 30 parts, the accelerator for hardening slaked lime of 0.3 part, the composite phosphate of 1.5 parts, the composite superfine powder of 15 parts, the organic explosion-proof fibers of 0.3 part that comprise 40 parts according to quality share, the water of 10 parts; Adopt this quality share ratio, spray material is most economical.
Embodiment three:
Be with the difference of above embodiment: the 1 ~ 3mm mullite aggregate, 30 parts of kyanites, the mullite fine powder of 20 parts, the electric smelting aluminous cement fine powder of 20 parts, the accelerator for hardening slaked lime of 0.1 part, the composite phosphate of 1.0 parts, the composite superfine powder of 8 parts, the organic explosion-proof fibers of 0.15 part that comprise 48 parts according to quality share, the water of 6 parts; The performance of spray material is best.
Spray gun is adopted the spray material in the present invention to be sprayed into the furnace lining of kiln head cover.
Add composite superfine powder in the present invention and can improve spray material low temperature and hot strength; Water consumption can be reduced by adding composite phosphate; Add the quick baking that organic explosion-proof fiber can realize sprayed coating.
The aggregate of kyanite is selected at 20 ~ 30 parts, and within the scope of this, the high temperature resistant and thermal shock resistance of spray material is higher; When the aggregate of kyanite is more than 30 parts, the intensity of spray material can decline, and wear resisting property reduces; When the aggregate of kyanite is lower than 20 parts, the high temperature resistant and corrosion resistant performance of spray material sharply declines; Wherein 27 parts of the bests, over-all properties is best.
The present invention is directed to the working conditions of kiln head cover liner, mullite synthesizing and kyanite compound is adopted to prepare abrasion-proof and refractory spray material, not only play that mullite resistance to elevated temperatures is strong, heat-resistant knocking stability good, intensity advantages of higher, and make use of kyanite there is the performance characteristics such as corrosion-resistant, high temperature resistant, resisted shrinkage; Change the brickwork construction of kiln head cover liner in the past, both may be used for kiln head cover and repaired, also may be used for kiln head cover and initially construct, adopt spraying method without the need to installation mold, the construction period is short, and construction cost is low, and work-ing life is more than 2 years.
The foregoing is only specific embodiments of the invention, but technical characteristic of the present invention is not limited thereto, any those skilled in the art is in the field of the invention, and the change done or modification are all encompassed among the scope of the claims of the present invention.
Claims (4)
1. a kiln head cover spray material, it is characterized in that: comprise 1 ~ 3mm mullite aggregate of 40 ~ 48 parts, the kyanite of 20 ~ 30 parts, the mullite fine powder of 10 ~ 20 parts, the electric smelting aluminous cement fine powder of 20 ~ 30 parts, the accelerator for hardening slaked lime of 0.1 ~ 0.3 part, the composite phosphate of 1 ~ 1.5 part, the composite superfine powder of 8 ~ 15 parts, the organic explosion-proof fiber of 0.15 ~ 0.3 part according to quality share, the water of 6 ~ 10 parts; Described kyanite is not more than 5mm by granularity, and wherein the kyanite mass ratio of granularity to be the kyanite of 1 ~ 5mm and granularity be 0 ~ 1mm is 2/5 ~ 3/5; Described composite superfine powder is made up of Reactive alumina and silicon powder.
2. a kind of kiln head cover spray material according to claim 1, it is characterized in that: the 1 ~ 3mm mullite aggregate, 27 parts of kyanites, the mullite fine powder of 15 parts, the electric smelting aluminous cement fine powder of 25 parts, the accelerator for hardening slaked lime of 0.2 part, the composite phosphate of 1.2 parts, the composite superfine powder of 10 parts, the organic explosion-proof fibers of 0.2 part that comprise 42 parts according to quality share, the water of 7 parts.
3. a kind of kiln head cover spray material according to claim 1, it is characterized in that: the 1 ~ 3mm mullite aggregate, 20 parts of kyanites, the mullite fine powder of 10 parts, the electric smelting aluminous cement fine powder of 30 parts, the accelerator for hardening slaked lime of 0.3 part, the composite phosphate of 1.5 parts, the composite superfine powder of 15 parts, the organic explosion-proof fibers of 0.3 part that comprise 40 parts according to quality share, the water of 10 parts.
4. a kind of kiln head cover spray material according to claim 1, it is characterized in that: the 1 ~ 3mm mullite aggregate, 30 parts of kyanites, the mullite fine powder of 20 parts, the electric smelting aluminous cement fine powder of 20 parts, the accelerator for hardening slaked lime of 0.1 part, the composite phosphate of 1.0 parts, the composite superfine powder of 8 parts, the organic explosion-proof fibers of 0.15 part that comprise 48 parts according to quality share, the water of 6 parts.
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| CN201410293976.2A CN104086190B (en) | 2014-06-26 | 2014-06-26 | A kind of kiln head cover spray material |
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| CN201410293976.2A CN104086190B (en) | 2014-06-26 | 2014-06-26 | A kind of kiln head cover spray material |
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| CN104086190B true CN104086190B (en) | 2016-02-10 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104829246A (en) * | 2015-04-10 | 2015-08-12 | 浙江锦诚耐火材料有限公司 | Refractory spray paint for a steel ladle work lining and preparation method thereof |
| CN110194663A (en) * | 2019-05-20 | 2019-09-03 | 陈海斗 | A kind of preparation method of wearable ceramic coat layer |
| CN114292098A (en) * | 2021-12-29 | 2022-04-08 | 江苏材睿科技有限公司 | Anti-erosion wear-resistant ceramic spray coating for rotary kiln and preparation method and process thereof |
| CN115745633B (en) * | 2022-11-21 | 2023-08-29 | 浙江锦诚新材料股份有限公司 | Cordierite-mullite spray coating and preparation method thereof |
| CN116178993B (en) * | 2023-03-02 | 2024-03-29 | 北京首钢股份有限公司 | Spray paint for spherical roof of iron-making hot blast stove and baking method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102060549A (en) * | 2009-11-16 | 2011-05-18 | 中冶建筑研究总院有限公司 | Low springback rate spraying and coating material for thermal-state blast furnace maintenance and preparation method thereof |
| CN103588491A (en) * | 2013-11-08 | 2014-02-19 | 贵阳联合高温材料有限公司 | High-strength baking-free flint clay-mullite spray coating as well as preparation and using methods thereof |
| CN103664204A (en) * | 2013-11-12 | 2014-03-26 | 长兴兴鹰新型耐火建材有限公司 | Silicon carbide anti-skinning fire-resistant spray paint |
| CN103755372A (en) * | 2014-02-09 | 2014-04-30 | 张婷 | Medium-temperature spray coating material for pipeline |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102060549A (en) * | 2009-11-16 | 2011-05-18 | 中冶建筑研究总院有限公司 | Low springback rate spraying and coating material for thermal-state blast furnace maintenance and preparation method thereof |
| CN103588491A (en) * | 2013-11-08 | 2014-02-19 | 贵阳联合高温材料有限公司 | High-strength baking-free flint clay-mullite spray coating as well as preparation and using methods thereof |
| CN103664204A (en) * | 2013-11-12 | 2014-03-26 | 长兴兴鹰新型耐火建材有限公司 | Silicon carbide anti-skinning fire-resistant spray paint |
| CN103755372A (en) * | 2014-02-09 | 2014-04-30 | 张婷 | Medium-temperature spray coating material for pipeline |
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Address after: 313100 pheasant Town Industrial Zone, Huzhou, Zhejiang, Changxing County Patentee after: Zhejiang Jincheng new material Limited by Share Ltd Address before: 313100, Huzhou, Changxing County, Zhejiang province pheasant Town Industrial Zone Zhejiang Jincheng refractory materials Co., Ltd. Patentee before: Zhejiang Jincheng Refractories Co., Ltd. |