CN111423242A - Anti-stripping high-thermal-shock-resistance castable - Google Patents
Anti-stripping high-thermal-shock-resistance castable Download PDFInfo
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Abstract
The invention relates to an anti-stripping high thermal shock resistant castable which is prepared from the following raw materials in parts by weight: 40-60 parts of waste zircon brick particles and fine powder of a glass kiln, 15-30 parts of waste silicon carbide shed plate particles, 1-10 parts of fused quartz particles, 10-20 parts of mullite fine powder, 3-15 parts of aluminate cement, 3-5 parts of silicon oxide micro powder, 3-5 parts of alumina micro powder, 1-3 parts of metal silicon powder and 1-2 parts of one or two of sodium tripolyphosphate or sodium hexametaphosphate; the zircon, the silicon carbide and the fused quartz are all synthetic materials with small thermal expansion coefficient and good thermal shock stability, the product material of the invention has high strength, good wear resistance and excellent thermal shock resistance, and the zircon brick and the waste silicon carbide shed plate are all waste materials, thereby not only recycling the waste materials, but also greatly reducing the product cost and being beneficial to recycling resources.
Description
Technical Field
The invention belongs to refractory materials, and particularly belongs to a low-cost anti-stripping high-thermal shock resistant castable.
Background
According to the production characteristics of general high-temperature industrial equipment, temperature fluctuation exists in the operation process, and the thermal shock damage life of the castable material caused by temperature change is shortened due to the fact that the kiln is stopped and opened in a production plan. In the technology, synthetic raw materials with good thermal shock stability, such as mullite, spinel and the like, are generally adopted as main raw materials to improve the thermal shock stability of the material. At present, a technical method for improving the thermal shock resistance of the material by adding zirconia, steel fibers and other technical means is also adopted, the zirconia is expensive, and the use environment of the steel fibers is limited. And part of the waste refractory materials removed from the high-temperature kiln are not easy to degrade as solid wastes, so that the environmental pollution is caused.
Therefore, the production cost is low, and the anti-stripping high thermal shock resistant castable made of waste materials is utilized, so that the castable has a wide market prospect and good environmental benefits.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides the castable which is low in cost, simultaneously utilizes the anti-stripping high thermal shock resistance of waste materials, and is used for overcoming the defects in the prior art.
The technical scheme of the invention is realized as follows: the anti-stripping high thermal shock resistant castable is prepared from the following raw materials in parts by weight: 40-60 parts of waste zircon brick particles and fine powder of a glass kiln, 15-30 parts of waste silicon carbide shed plate particles, 1-10 parts of fused quartz particles, 10-20 parts of mullite fine powder, 3-15 parts of aluminate cement, 3-5 parts of silicon oxide micro powder, 3-5 parts of alumina micro powder, 1-3 parts of metal silicon powder and 1-2 parts of one or two of sodium tripolyphosphate or sodium hexametaphosphate.
The particle size of the waste zircon brick particles of the glass kiln is not more than 6 mm, and the fine powder is 200 meshes or 300 meshes.
The particle size of the waste silicon carbide slab is not more than 2 mm, and the particle size of the fused quartz is not more than 5 mm.
The invention has the following positive effects: the method mainly comprises the steps of crushing and processing waste zircon bricks of a recycled glass kiln into particles below 6 mm, processing recycled waste silicon carbide slabs into particles with the particle size not larger than 2 mm, matching fused quartz particles with the particle size not larger than 5 mm as aggregate, processing the recycled waste zircon bricks of the glass kiln into 200-mesh, 300-mesh and mullite fine powder as powder, aluminate cement, silica micro powder and alumina micro powder as binding agents, metal silicon powder as an antioxidant, and one or two of sodium tripolyphosphate and sodium hexametaphosphate as a dispersing agent.
The zircon, the silicon carbide and the fused quartz adopted by the invention are all synthetic materials with small thermal expansion coefficient and good thermal shock stability, the product material has high strength, good wear resistance and excellent thermal shock resistance, and the zircon brick and the waste silicon carbide shed plate are all waste materials, so that the waste materials are recycled, the product cost is greatly reduced, and the resource recycling is facilitated.
Not only can greatly reduce the material cost, but also is beneficial to the cyclic utilization of resources, and can obviously improve the thermal shock resistance of the material. Product bulk density (g/cm)3) More than or equal to 2.6, cold fracture strength (MPa) of × 24h more than or equal to 10 at 110 ℃, × 3h more than or equal to 12 at 1300 ℃, cold compressive strength (MPa) of × 24h more than or equal to 80 at 110 ℃, × 3h more than or equal to 100 at 1300 ℃, linear change rate (%), × 3h more than or equal to +/-0.5 at 1300 ℃, and thermal shock stability (water cooling at 1100 ℃) more than or equal to 50 times.
Detailed Description
The anti-stripping high thermal shock resistant castable is prepared from the following raw materials in parts by weight: 40-60 parts of waste zircon brick particles and fine powder of a glass kiln, 15-30 parts of waste silicon carbide shed plate particles, 1-10 parts of fused quartz particles, 10-20 parts of mullite fine powder, 3-15 parts of aluminate cement, 3-5 parts of silicon oxide micro powder, 3-5 parts of alumina micro powder, 1-3 parts of metal silicon powder and 1-2 parts of one or two of sodium tripolyphosphate or sodium hexametaphosphate. The particle size of the waste zircon brick particles of the glass kiln is not more than 6 mm, and the fine powder is 200 meshes or 300 meshes. The particle size of the waste silicon carbide slab is not more than 2 mm, and the particle size of the fused quartz is not more than 5 mm.
The product not only can greatly reduce the material cost, but also is beneficial to the cyclic utilization of resources, and can obviously improve the thermal shock resistance of the material. Product bulk density (g/cm)3) More than or equal to 2.6, cold fracture strength (MPa) of × h more than or equal to 10 at 110 ℃, × h more than or equal to 12 at 1300 ℃ and coldThe compressive strength (MPa) is that × 24h at 110 ℃ is more than or equal to 80, × 3h at 1300 ℃ is more than or equal to 100, the linear change rate (%) is that × 3h at 1300 ℃ is less than or equal to +/-0.5, and the thermal shock stability (water cooling at 1100 ℃) is more than or equal to 50 times.
The first embodiment is as follows: the anti-stripping high thermal shock resistant castable is prepared from the following raw materials in parts by weight: 40 parts of waste zircon brick particles and fine powder of a glass kiln, 15 parts of waste silicon carbide shed plate particles, 1 part of fused quartz particles, 10 parts of mullite fine powder, 3 parts of aluminate cement, 3 parts of silicon oxide micro powder, 3 parts of alumina micro powder, 1 part of metal silicon powder and 1 part of one or two of sodium tripolyphosphate or sodium hexametaphosphate. The particle size of the waste zircon brick particles of the glass kiln is not more than 6 mm, and the fine powder is 200 meshes or 300 meshes. The particle size of the waste silicon carbide slab is not more than 2 mm, and the particle size of the fused quartz is not more than 5 mm.
Example two: the anti-stripping high thermal shock resistant castable is prepared from the following raw materials in parts by weight: 60 parts of waste zircon brick particles and fine powder of a glass kiln, 30 parts of waste silicon carbide shed plate particles, 10 parts of fused quartz particles, 20 parts of mullite fine powder, 15 parts of aluminate cement, 5 parts of silicon oxide micro powder, 5 parts of alumina micro powder, 3 parts of metal silicon powder and 2 parts of one or two of sodium tripolyphosphate or sodium hexametaphosphate. The particle size of the waste zircon brick particles of the glass kiln is not more than 6 mm, and the fine powder is 200 meshes or 300 meshes. The particle size of the waste silicon carbide slab is not more than 2 mm, and the particle size of the fused quartz is not more than 5 mm.
Example three: the anti-stripping high thermal shock resistant castable is prepared from the following raw materials in parts by weight: the glass kiln waste zircon brick comprises 50 parts of glass kiln waste zircon brick particles and fine powder, 25 parts of waste silicon carbide shed plate particles, 7 parts of fused quartz particles, 15 parts of mullite fine powder, 10 parts of aluminate cement, 4 parts of silicon oxide micro powder, 4 parts of alumina micro powder, 2 parts of metal silicon powder and 1.5 parts of one or two of sodium tripolyphosphate or sodium hexametaphosphate. The particle size of the waste zircon brick particles of the glass kiln is not more than 6 mm, and the fine powder is 200 meshes or 300 meshes. The particle size of the waste silicon carbide slab is not more than 2 mm, and the particle size of the fused quartz is not more than 5 mm.
Example four: the anti-stripping high thermal shock resistant castable is prepared from the following raw materials in parts by weight: 40 parts of waste zircon brick particles and fine powder of a glass kiln, 30 parts of waste silicon carbide shed plate particles, 10 parts of fused quartz particles, 20 parts of mullite fine powder, 15 parts of aluminate cement, 5 parts of silicon oxide micro powder, 5 parts of alumina micro powder, 3 parts of metal silicon powder and 2 parts of one or two of sodium tripolyphosphate or sodium hexametaphosphate. The particle size of the waste zircon brick particles of the glass kiln is not more than 6 mm, and the fine powder is 200 meshes or 300 meshes. The particle size of the waste silicon carbide slab is not more than 2 mm, and the particle size of the fused quartz is not more than 5 mm.
Example five: the anti-stripping high thermal shock resistant castable is prepared from the following raw materials in parts by weight: 60 parts of waste zircon brick particles and fine powder of a glass kiln, 15 parts of waste silicon carbide shed plate particles, 10 parts of fused quartz particles, 20 parts of mullite fine powder, 15 parts of aluminate cement, 5 parts of silicon oxide micro powder, 5 parts of alumina micro powder, 3 parts of metal silicon powder and 2 parts of one or two of sodium tripolyphosphate or sodium hexametaphosphate. The particle size of the waste zircon brick particles of the glass kiln is not more than 6 mm, and the fine powder is 200 meshes or 300 meshes. The particle size of the waste silicon carbide slab is not more than 2 mm, and the particle size of the fused quartz is not more than 5 mm.
Example six: the anti-stripping high thermal shock resistant castable is prepared from the following raw materials in parts by weight: 60 parts of waste zircon brick particles and fine powder of a glass kiln, 30 parts of waste silicon carbide shed plate particles, 1 part of fused quartz particles, 20 parts of mullite fine powder, 15 parts of aluminate cement, 5 parts of silicon oxide micro powder, 5 parts of alumina micro powder, 3 parts of metal silicon powder and 2 parts of one or two of sodium tripolyphosphate or sodium hexametaphosphate. The particle size of the waste zircon brick particles of the glass kiln is not more than 6 mm, and the fine powder is 200 meshes or 300 meshes. The particle size of the waste silicon carbide slab is not more than 2 mm, and the particle size of the fused quartz is not more than 5 mm.
Example seven: the anti-stripping high thermal shock resistant castable is prepared from the following raw materials in parts by weight: 60 parts of waste zircon brick particles and fine powder of a glass kiln, 30 parts of waste silicon carbide shed plate particles, 10 parts of fused quartz particles, 10 parts of mullite fine powder, 15 parts of aluminate cement, 5 parts of silicon oxide micro powder, 5 parts of alumina micro powder, 3 parts of metal silicon powder and 2 parts of one or two of sodium tripolyphosphate or sodium hexametaphosphate. The particle size of the waste zircon brick particles of the glass kiln is not more than 6 mm, and the fine powder is 200 meshes or 300 meshes. The particle size of the waste silicon carbide slab is not more than 2 mm, and the particle size of the fused quartz is not more than 5 mm.
Example eight: the anti-stripping high thermal shock resistant castable is prepared from the following raw materials in parts by weight: 60 parts of waste zircon brick particles and fine powder of a glass kiln, 30 parts of waste silicon carbide shed plate particles, 10 parts of fused quartz particles, 20 parts of mullite fine powder, 3 parts of aluminate cement, 5 parts of silicon oxide micro powder, 5 parts of alumina micro powder, 3 parts of metal silicon powder and 2 parts of one or two of sodium tripolyphosphate or sodium hexametaphosphate. The particle size of the waste zircon brick particles of the glass kiln is not more than 6 mm, and the fine powder is 200 meshes or 300 meshes. The particle size of the waste silicon carbide slab is not more than 2 mm, and the particle size of the fused quartz is not more than 5 mm.
Example nine: the anti-stripping high thermal shock resistant castable is prepared from the following raw materials in parts by weight: 60 parts of waste zircon brick particles and fine powder of a glass kiln, 30 parts of waste silicon carbide shed plate particles, 10 parts of fused quartz particles, 20 parts of mullite fine powder, 15 parts of aluminate cement, 3 parts of silicon oxide micro powder, 5 parts of alumina micro powder, 3 parts of metal silicon powder and 2 parts of one or two of sodium tripolyphosphate or sodium hexametaphosphate. The particle size of the waste zircon brick particles of the glass kiln is not more than 6 mm, and the fine powder is 200 meshes or 300 meshes. The particle size of the waste silicon carbide slab is not more than 2 mm, and the particle size of the fused quartz is not more than 5 mm.
Example ten: the anti-stripping high thermal shock resistant castable is prepared from the following raw materials in parts by weight: 60 parts of waste zircon brick particles and fine powder of a glass kiln, 30 parts of waste silicon carbide shed plate particles, 10 parts of fused quartz particles, 20 parts of mullite fine powder, 15 parts of aluminate cement, 5 parts of silicon oxide micro powder, 3 parts of alumina micro powder, 3 parts of metal silicon powder and 2 parts of one or two of sodium tripolyphosphate or sodium hexametaphosphate. The particle size of the waste zircon brick particles of the glass kiln is not more than 6 mm, and the fine powder is 200 meshes or 300 meshes. The particle size of the waste silicon carbide slab is not more than 2 mm, and the particle size of the fused quartz is not more than 5 mm.
Example eleven: the anti-stripping high thermal shock resistant castable is prepared from the following raw materials in parts by weight: 60 parts of waste zircon brick particles and fine powder of a glass kiln, 30 parts of waste silicon carbide shed plate particles, 10 parts of fused quartz particles, 20 parts of mullite fine powder, 15 parts of aluminate cement, 5 parts of silicon oxide micro powder, 5 parts of alumina micro powder, 1 part of metal silicon powder and 2 parts of one or two of sodium tripolyphosphate or sodium hexametaphosphate. The particle size of the waste zircon brick particles of the glass kiln is not more than 6 mm, and the fine powder is 200 meshes or 300 meshes. The particle size of the waste silicon carbide slab is not more than 2 mm, and the particle size of the fused quartz is not more than 5 mm.
Example twelve: the anti-stripping high thermal shock resistant castable is prepared from the following raw materials in parts by weight: 60 parts of waste zircon brick particles and fine powder of a glass kiln, 30 parts of waste silicon carbide shed plate particles, 10 parts of fused quartz particles, 20 parts of mullite fine powder, 15 parts of aluminate cement, 5 parts of silicon oxide micro powder, 5 parts of alumina micro powder, 3 parts of metal silicon powder and 1 part of one or two of sodium tripolyphosphate or sodium hexametaphosphate. The particle size of the waste zircon brick particles of the glass kiln is not more than 6 mm, and the fine powder is 200 meshes or 300 meshes. The particle size of the waste silicon carbide slab is not more than 2 mm, and the particle size of the fused quartz is not more than 5 mm.
Example thirteen: the anti-stripping high thermal shock resistant castable is prepared from the following raw materials in parts by weight: 60 parts of waste zircon brick particles and fine powder of a glass kiln, 15 parts of waste silicon carbide shed plate particles, 1 part of fused quartz particles, 10 parts of mullite fine powder, 3 parts of aluminate cement, 3 parts of silicon oxide micro powder, 3 parts of alumina micro powder, 1 part of metal silicon powder and 1 part of one or two of sodium tripolyphosphate or sodium hexametaphosphate. The particle size of the waste zircon brick particles of the glass kiln is not more than 6 mm, and the fine powder is 200 meshes or 300 meshes. The particle size of the waste silicon carbide slab is not more than 2 mm, and the particle size of the fused quartz is not more than 5 mm.
Example fourteen: the anti-stripping high thermal shock resistant castable is prepared from the following raw materials in parts by weight: 40 parts of waste zircon brick particles and fine powder of a glass kiln, 30 parts of waste silicon carbide shed plate particles, 1 part of fused quartz particles, 10 parts of mullite fine powder, 3 parts of aluminate cement, 3 parts of silicon oxide micro powder, 3 parts of alumina micro powder, 1 part of metal silicon powder and 1 part of one or two of sodium tripolyphosphate or sodium hexametaphosphate. The particle size of the waste zircon brick particles of the glass kiln is not more than 6 mm, and the fine powder is 200 meshes or 300 meshes. The particle size of the waste silicon carbide slab is not more than 2 mm, and the particle size of the fused quartz is not more than 5 mm.
Example fifteen: the anti-stripping high thermal shock resistant castable is prepared from the following raw materials in parts by weight: 40 parts of waste zircon brick particles and fine powder of a glass kiln, 15 parts of waste silicon carbide shed plate particles, 10 parts of fused quartz particles, 10 parts of mullite fine powder, 3 parts of aluminate cement, 3 parts of silicon oxide micro powder, 3 parts of alumina micro powder, 1 part of metal silicon powder and 1 part of one or two of sodium tripolyphosphate or sodium hexametaphosphate. The particle size of the waste zircon brick particles of the glass kiln is not more than 6 mm, and the fine powder is 200 meshes or 300 meshes. The particle size of the waste silicon carbide slab is not more than 2 mm, and the particle size of the fused quartz is not more than 5 mm.
Example sixteen: the anti-stripping high thermal shock resistant castable is prepared from the following raw materials in parts by weight: 40 parts of waste zircon brick particles and fine powder of a glass kiln, 15 parts of waste silicon carbide shed plate particles, 1 part of fused quartz particles, 20 parts of mullite fine powder, 3 parts of aluminate cement, 3 parts of silicon oxide micro powder, 3 parts of alumina micro powder, 1 part of metal silicon powder and 1 part of one or two of sodium tripolyphosphate or sodium hexametaphosphate. The particle size of the waste zircon brick particles of the glass kiln is not more than 6 mm, and the fine powder is 200 meshes or 300 meshes. The particle size of the waste silicon carbide slab is not more than 2 mm, and the particle size of the fused quartz is not more than 5 mm.
Example seventeen: the anti-stripping high thermal shock resistant castable is prepared from the following raw materials in parts by weight: 40 parts of waste zircon brick particles and fine powder of a glass kiln, 15 parts of waste silicon carbide shed plate particles, 1 part of fused quartz particles, 10 parts of mullite fine powder, 15 parts of aluminate cement, 3 parts of silicon oxide micro powder, 3 parts of alumina micro powder, 1 part of metal silicon powder and 1 part of one or two of sodium tripolyphosphate or sodium hexametaphosphate. The particle size of the waste zircon brick particles of the glass kiln is not more than 6 mm, and the fine powder is 200 meshes or 300 meshes. The particle size of the waste silicon carbide slab is not more than 2 mm, and the particle size of the fused quartz is not more than 5 mm.
Example eighteen: the anti-stripping high thermal shock resistant castable is prepared from the following raw materials in parts by weight: 40 parts of waste zircon brick particles and fine powder of a glass kiln, 15 parts of waste silicon carbide shed plate particles, 1 part of fused quartz particles, 10 parts of mullite fine powder, 3 parts of aluminate cement, 5 parts of silicon oxide micro powder, 3 parts of alumina micro powder, 1 part of metal silicon powder and 1 part of one or two of sodium tripolyphosphate or sodium hexametaphosphate. The particle size of the waste zircon brick particles of the glass kiln is not more than 6 mm, and the fine powder is 200 meshes or 300 meshes. The particle size of the waste silicon carbide slab is not more than 2 mm, and the particle size of the fused quartz is not more than 5 mm.
Example nineteenth: the anti-stripping high thermal shock resistant castable is prepared from the following raw materials in parts by weight: 40 parts of waste zircon brick particles and fine powder of a glass kiln, 15 parts of waste silicon carbide shed plate particles, 1 part of fused quartz particles, 10 parts of mullite fine powder, 3 parts of aluminate cement, 3 parts of silicon oxide micro powder, 5 parts of alumina micro powder, 1 part of metal silicon powder and 1 part of one or two of sodium tripolyphosphate or sodium hexametaphosphate. The particle size of the waste zircon brick particles of the glass kiln is not more than 6 mm, and the fine powder is 200 meshes or 300 meshes. The particle size of the waste silicon carbide slab is not more than 2 mm, and the particle size of the fused quartz is not more than 5 mm.
Example twenty: the anti-stripping high thermal shock resistant castable is prepared from the following raw materials in parts by weight: 40 parts of waste zircon brick particles and fine powder of a glass kiln, 15 parts of waste silicon carbide shed plate particles, 1 part of fused quartz particles, 10 parts of mullite fine powder, 3 parts of aluminate cement, 3 parts of silicon oxide micro powder, 3 parts of alumina micro powder, 3 parts of metal silicon powder and 1 part of one or two of sodium tripolyphosphate or sodium hexametaphosphate. The particle size of the waste zircon brick particles of the glass kiln is not more than 6 mm, and the fine powder is 200 meshes or 300 meshes. The particle size of the waste silicon carbide slab is not more than 2 mm, and the particle size of the fused quartz is not more than 5 mm.
Example twenty one: the anti-stripping high thermal shock resistant castable is prepared from the following raw materials in parts by weight: 40 parts of waste zircon brick particles and fine powder of a glass kiln, 15 parts of waste silicon carbide shed plate particles, 1 part of fused quartz particles, 10 parts of mullite fine powder, 3 parts of aluminate cement, 3 parts of silica micropowder, 3 parts of alumina micropowder, 1 part of metal silicon powder and 2 parts of one or two of sodium tripolyphosphate or sodium hexametaphosphate. The particle size of the waste zircon brick particles of the glass kiln is not more than 6 mm, and the fine powder is 200 meshes or 300 meshes. The particle size of the waste silicon carbide slab is not more than 2 mm, and the particle size of the fused quartz is not more than 5 mm.
The zircon, the silicon carbide and the fused quartz adopted by the invention are all synthetic materials with small thermal expansion coefficient and good thermal shock stability, the product material has high strength, good wear resistance and excellent thermal shock resistance, and the zircon brick and the waste silicon carbide shed plate are all waste materials, so that the waste materials are recycled, the product cost is greatly reduced, and the resource recycling is facilitated.
The foregoing is directed to preferred embodiments of the present invention, other and further embodiments of the invention may be devised without departing from the basic scope thereof, and the scope thereof is determined by the claims that follow. However, any simple modification, equivalent change and modification of the above embodiments according to the technical essence of the present invention are within the protection scope of the technical solution of the present invention.
Claims (3)
1. The anti-stripping high-thermal shock-resistant castable is characterized by being prepared from the following raw materials in parts by weight: 40-60 parts of waste zircon brick particles and fine powder of a glass kiln, 15-30 parts of waste silicon carbide shed plate particles, 1-10 parts of fused quartz particles, 10-20 parts of mullite fine powder, 3-15 parts of aluminate cement, 3-5 parts of silicon oxide micro powder, 3-5 parts of alumina micro powder, 1-3 parts of metal silicon powder and 1-2 parts of one or two of sodium tripolyphosphate or sodium hexametaphosphate.
2. The spalling-resistant high thermal shock resistant castable as claimed in claim 1, wherein: the particle size of the waste zircon brick particles of the glass kiln is not more than 6 mm, and the fine powder is 200 meshes or 300 meshes.
3. The spalling-resistant high thermal shock resistant castable as claimed in claim 1, wherein: the particle size of the waste silicon carbide slab is not more than 2 mm, and the particle size of the fused quartz is not more than 5 mm.
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| CN112851291A (en) * | 2021-03-05 | 2021-05-28 | 中冶武汉冶金建筑研究院有限公司 | Silicon carbide slurry utilizing waste silicon carbide shed plates and preparation method thereof |
| CN113511909A (en) * | 2021-08-25 | 2021-10-19 | 郑州瑞泰耐火科技有限公司 | Anti-skinning castable prepared from waste silicon mullite bricks and preparation process thereof |
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