CN105130465A - High-performance andalusite silicon-carbide kilneye castable and preparation application method thereof - Google Patents
High-performance andalusite silicon-carbide kilneye castable and preparation application method thereof Download PDFInfo
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- CN105130465A CN105130465A CN201510511622.5A CN201510511622A CN105130465A CN 105130465 A CN105130465 A CN 105130465A CN 201510511622 A CN201510511622 A CN 201510511622A CN 105130465 A CN105130465 A CN 105130465A
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- andalusite
- castable
- kilneye
- silicon carbide
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Abstract
The invention relates to a high-performance andalusite silicon-carbide kilneye castable and a preparation application method thereof, and relates to the technical field of castable production. The castable is characterized by comprising the following compositions: andalusite with the particle diameter of 5-3 mm, andalusite with the particle diameter of 3-1 mm, silicon carbide with the particle diameter of 3-1 mm, andalusite with the particle diameter of 1-0 mm, silicon carbide with the particle diameter of 1-0 mm, andalusite with the particle size of 200 mesh, silicon carbide with the particle size of 200 mesh, aluminium oxide micropowder, high-purity silicon oxide micropowder, Lafarge-71 cement, explosion-proof fiber and sodium hexametaphosphate. The preparation application method comprises weighing all solid materials according to a predetermined ratio, mixing, weighing and packaging; and when the castable is used, opening the package, adding water and stirring to form the castable, casting according to requirements, and performing maintenance, drying and baking for usage. The prepared castable possesses advantages of good fluidity, resistance to alkali corrosion, high high-temperature strength, resistance to wear, excellent thermal shock resistance and the like, and is applicable to novel dry-process cement production line kilneye.
Description
Technical field:
The present invention relates to mould material production technical field, specifically a kind of preparation using method of high-performance andalusite silicon carbide kilneye mould material.
Background technology:
Modern New dry process production line kilneye position, because working conditions is harsh, the life-span, fluctuation was at 6 ~ 8 months, cannot accomplish the overhaul time lock annual with cement production enterprise, and promoting kilneye work-ing life is the task of top priority.
Cement kiln port part working temperature is up to 1200 ~ 1300 DEG C, the extruding of rear portion refractory brick is subject in operational process, need mould material to have very high physical strength, and be subject to cement clinker wearing and tearing and the washing away of high temperature gas flow, need mould material to possess enough wear resistancies.Alternately contact with cement clinker and air during kilneye running, cause mould material temperature variation frequently, material produces through-wall crack under stress, causes to peel off, fall block, forces material need possess good thermal shock resistance.Mould material corrodes for a long time by alkaline gas, can with the composite reaction such as Al, Si of material internal, generate eutectic, cause oversintering and the alkali cracking phenomenon of material, mould material need possess good alkaline resistance properties.
Summary of the invention:
Technical problem to be solved by this invention is to provide a kind of high-performance andaluzite-silicon carbide kilneye mould material and preparation using method thereof, and through well-designed, strengthening matrix also optimizes the chemical constitution of mould material, to guarantee the excellent properties of material.
Solve technical problem adopt following technical scheme:
A kind of high-performance andalusite silicon carbide kilneye mould material, is characterized in that: comprise following component by weight percentage,
The aluminium content of described andaluzite is 55% ~ 60%.
A kind of preparation using method of high-performance andalusite silicon carbide kilneye mould material, it is characterized in that: comprise the following steps, various solid material is weighed, after mixing by predetermined proportioning, through weighing, packaging becomes packed unshape refractory, during use, takes packaging apart, pour material into stirrer, add water and stir into mould material, pour into a mould on request, then use through maintenance, drying, baking.
Aggregate fraction, based on andaluzite, silicon carbide, andaluzite is sillimanite race raw material, aluminium content is 55% ~ 60%, and itself also has good alkaline resistance properties, and is converted into mullite under high temperature, and with a certain amount of volumetric expansion, be conducive to the high-temperature behavior improving refractory materials.Silicon carbide has the premium propertiess such as hardness is high, wear resistance good, heat-shock resistance is strong, with andaluzite compound use, can improve the hot strength of material, wear resistance, alkali resistance and thermal shock resistance energy.
Base portion, adopt alumina powder, high-purity silicon oxide micro mist composite micro-powder, make the dispersiveness of material, Packing character is improved, thus the workability of material is significantly improved.
Silicon oxide super-fine powder and alumina powder facilitate mullitization and react:
3Al
2o
3+ 2SiO
2→ 3Al
2o
3.2SiO
2(mullite)
Adding of ultrafine silica powder makes mould material produce hydrogen bonded in the past at 80 DEG C, because of dehydration reaction when 80 ~ 600 DEG C:
SiO
2-Si-OH+HO-Si-SiO
2→SiO
2-Si-O-Si-SiO
2+H
2O
Form firmly Si-O-Si key, present three-dimensional reticulated structure, improve bonding strength;
In sum, this proportioning composition had both made matrix strengthen, and allowed again aggregate mate with Matrix optimization.Thus it is wear-resisting to ensure that material obtains, alkali resistant corrodes, and hot strength is high, the many performances of good in thermal shock.
In order to comprehensively pass judgment on material property, detect the test of normal temperature, high temperature physicochemical property and alkali resistant, normal temperature cut resistance test.
Various solid material is weighed by predetermined proportioning, and mixing and water adding stirs, and sample preparation, reaches following performance after testing
1, physicochemical property is as following table
| Volume density g .cm -3 | Folding strength/MPa | Compressive strength/MPa | Linear change rate/% | |
| 110℃/24h | 2.61 | 15.30 | 112.43 | -0.01 |
| 1100℃/3h | 2.55 | 12.36 | 115.88 | -0.09 |
| 1350℃/3h | 2.57 | 11.65 | 123.26 | 0.14 |
2, alkali resistant: one-level.(GB10696-89)
3, wear resistance: 5.76cm
3
The invention has the beneficial effects as follows: mould material prepared by the present invention, have good fluidity, alkali resistant corrodes, and hot strength is high, wear resisting property, the advantages such as good in thermal shock.Be applicable to new type nonaqueous cement production line kilneye position.
Embodiment:
The technique means realized to make the present invention, creation characteristic, reaching object and effect is easy to understand, below in conjunction with specific examples, setting forth the present invention further.
Embodiment 1
A kind of high-performance andalusite silicon carbide kilneye mould material, comprises following component by weight percentage,
The aluminium content of andaluzite is 55%.
A kind of preparation using method of high-performance andalusite silicon carbide kilneye mould material, comprise the following steps, various solid material is weighed, after mixing by predetermined proportioning, through weighing, packaging becomes packed unshape refractory, during use, takes packaging apart, pour material into stirrer, add water and stir into mould material, pour into a mould on request, then use through maintenance, drying, baking.
Embodiment 2
A kind of high-performance andalusite silicon carbide kilneye mould material, comprises following component by weight percentage,
The aluminium content of andaluzite is 58%.
A kind of preparation using method of high-performance andalusite silicon carbide kilneye mould material is identical with the preparation using method in embodiment one.
Embodiment 3
A kind of high-performance andalusite silicon carbide kilneye mould material, comprises following component by weight percentage,
The aluminium content of andaluzite is 60%.
A kind of preparation using method of high-performance andalusite silicon carbide kilneye mould material is identical with the preparation using method in embodiment one.
More than show and describe ultimate principle of the present invention and principal character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and specification sheets just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.Application claims protection domain is defined by appending claims and equivalent thereof.
Claims (3)
1. a high-performance andalusite silicon carbide kilneye mould material, is characterized in that: comprise following component by weight percentage,
2. a kind of high-performance andalusite silicon carbide kilneye mould material according to claim 1, is characterized in that: the aluminium content of described andaluzite is 55% ~ 60%.
3. the preparation using method of a kind of high-performance andalusite silicon carbide kilneye mould material according to claim 1, it is characterized in that: comprise the following steps, various solid material is weighed, after mixing by predetermined proportioning, through weighing, packaging becomes packed unshape refractory, during use, takes packaging apart, pour material into stirrer, add water and stir into mould material, pour into a mould on request, then use through maintenance, drying, baking.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510511622.5A CN105130465A (en) | 2015-08-18 | 2015-08-18 | High-performance andalusite silicon-carbide kilneye castable and preparation application method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510511622.5A CN105130465A (en) | 2015-08-18 | 2015-08-18 | High-performance andalusite silicon-carbide kilneye castable and preparation application method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105130465A true CN105130465A (en) | 2015-12-09 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510511622.5A Pending CN105130465A (en) | 2015-08-18 | 2015-08-18 | High-performance andalusite silicon-carbide kilneye castable and preparation application method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105130465A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106365658A (en) * | 2016-08-30 | 2017-02-01 | 安徽瑞泰新材料科技有限公司 | High-strength wear-resistant low-temperature smearing refractory material |
| CN111978089A (en) * | 2020-08-21 | 2020-11-24 | 浙江锦诚新材料股份有限公司 | Dry-type spray coating for coal injection pipe and preparation method thereof |
-
2015
- 2015-08-18 CN CN201510511622.5A patent/CN105130465A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106365658A (en) * | 2016-08-30 | 2017-02-01 | 安徽瑞泰新材料科技有限公司 | High-strength wear-resistant low-temperature smearing refractory material |
| CN111978089A (en) * | 2020-08-21 | 2020-11-24 | 浙江锦诚新材料股份有限公司 | Dry-type spray coating for coal injection pipe and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20151209 |
|
| WD01 | Invention patent application deemed withdrawn after publication |