CN109320272A - A kind of novel environment friendly chrome corundum brick and its production technology - Google Patents
A kind of novel environment friendly chrome corundum brick and its production technology Download PDFInfo
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- CN109320272A CN109320272A CN201811501585.XA CN201811501585A CN109320272A CN 109320272 A CN109320272 A CN 109320272A CN 201811501585 A CN201811501585 A CN 201811501585A CN 109320272 A CN109320272 A CN 109320272A
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- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/10—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on aluminium oxide
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- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3231—Refractory metal oxides, their mixed metal oxides, or oxide-forming salts thereof
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Abstract
The present invention provides a kind of novel environment friendly chrome corundum brick and its production technology, the chrome corundum brick includes the ingredient of following parts by weight: dense alumina: 30 ~ 50 parts, Brown Alundum: 20 ~ 40 parts, chromium oxide powder: 15 ~ 25 parts, alpha-alumina: 10 ~ 15 parts, electrofused mullite: 10 ~ 15 parts, titanium dioxide powder: 5 ~ 10 parts, carborundum powder: 5 ~ 10 parts, degumming agent: 1 ~ 5 part, organic binder: 1 ~ 5 part, bonding agent: 1 ~ 5 part.Rationally, production technology is environmentally friendly for the chrome corundum brick ingredient design, and production gained chrome corundum brick intensity is high, and high temperature resistant, corrosion resistance is strong, and long service life, production cost is low, good in economic efficiency.
Description
Technical field
The invention belongs to chrome corundum brick production technical fields, and in particular, to a kind of novel environment friendly chrome corundum brick and its life
Production. art.
Background technique
Chrome corundum brick (chrome corundum brick) refers to containing Cr2O3Corundum fireproof product.At high temperature,
Cr2O3With Al2O3Continuous solid solution is formed, thus the high-temperature behavior of pink fused alumina product is better than pure corundum products.For petrochemical industry
The chrome corundum brick of gasification furnace should be low silicon, low iron, low alkali, high-purity, also want density and intensity with higher.Using more
Pink fused alumina product, Cr2O3Content is mostly in 9% ~ 15% range.Essential mineral group becomes α-Al2O3- Cr2O3Solid solution.It is secondary
Mineral composition is a small amount of composite spinelle (or without composite spinelle), the refractory brick that chromic oxide content is 1%~30%.There is founding
Two kinds of chrome corundum brick of chrome corundum brick and sintering.Chrome corundum brick just refers to sintering chrome corundum brick under normal circumstances.
Chrome corundum brick (chrome corundum brick) refers to containing Cr2O3Corundum fireproof product.At high temperature,
Cr2O3With Al2O3Continuous solid solution is formed, thus the high-temperature behavior of pink fused alumina product is better than pure corundum products.For petrochemical industry
The chrome corundum brick of gasification furnace should be low silicon, low iron, low alkali, high-purity, also want density and intensity with higher.Using more
Pink fused alumina product, Cr2O3Content is mostly in 9% ~ 15% range.
For chrome corundum brick, it is rigid that the Chinese patent of Publication No. CN106747365A discloses a kind of high-strength zirconium chromium of low stomata
Beautiful brick and its manufacturing method, wherein the high-strength zirconia-chromia corundum brick of low stomata is made of ingredient and bonding agent, the ingredient by weight hundred
Dividing than meter includes: fused white corundum 40 ~ 80%, electrofused mullite 0 ~ 30%, zirconia refractory 1 ~ 10%, chrome refractory
1 ~ 10%, α-Al2O3Micro mist 0 ~ 15% and clay 5 ~ 15%, the weight of the bonding agent are the 1 ~ 12% of ingredient total weight；
1) manufacturing method is comprising steps of prepare ingredient and bonding agent, 2) mixing and brickmaking base, 3) sintering.The present invention low gas obtained
The bond strength of the high-strength zirconia-chromia corundum brick in hole, each storeroom is high, and compactness is good, and the porosity is low, and thermal shock resistance is preferable, anti-slag is soaked
Corrosion can be good, and high temperature resistant.However, chrome corundum brick provided by the patent, high production cost, preparation process be not friendly to environment
It is good.
Summary of the invention
Above-mentioned to solve the problems, such as, the purpose of the present invention is to provide a kind of novel environment friendly chrome corundum brick and its productions
Technique, rationally, production technology is environmentally friendly for the chrome corundum brick ingredient design, and production gained chrome corundum brick intensity is high, resistance to height
Temperature, corrosion resistance is strong, and long service life, production cost is low, good in economic efficiency.
In order to achieve the above objectives, the technical scheme is that
A kind of novel environment friendly chrome corundum brick, the chrome corundum brick include the ingredient of following parts by weight: dense alumina: 30 ~ 50 parts, palm fibre
Corundum: 20 ~ 40 parts, chromium oxide powder: 15 ~ 25 parts, alpha-alumina: 10 ~ 15 parts, electrofused mullite: 10 ~ 15 parts, titanium dioxide
Powder: 5 ~ 10 parts, carborundum powder: 5 ~ 10 parts, degumming agent: 1 ~ 5 part, organic binder: 1 ~ 5 part, bonding agent: 1 ~ 5 part.
Further, the chrome corundum brick includes the ingredient of following parts by weight: dense alumina: 40 ~ 50 parts, Brown Alundum: 30 ~
40 parts, chromium oxide powder: 15 ~ 20 parts, alpha-alumina: 12 ~ 15 parts, electrofused mullite: 13 ~ 15 parts, titanium dioxide powder: 5 ~ 8 parts,
Carborundum powder: 6 ~ 10 parts, degumming agent: 1 ~ 3 part, organic binder: 1 ~ 4 part, bonding agent: 2 ~ 5 parts.
Further, the chrome corundum brick includes the ingredient of following parts by weight: dense alumina: 40 parts, Brown Alundum: and 30 parts,
Chromium oxide powder: 20 parts, alpha-alumina: 13 parts, electrofused mullite: 14 parts, titanium dioxide powder: 7 parts, carborundum powder: 8 parts, solution
Jelly: 3 parts, organic binder: 2 parts, bonding agent: 3 parts.
Further, the Alpha-alumina Powder Particle Size < 0.044mm.
Further, the bonding agent is aluminum sulfate saturated solution.
Further, the degumming agent is ammonium hydroxide or 2-amino-2-methyl-1-propanol.
Further, the organic binder includes phenolic resin or epoxy resin.
Meanwhile the present invention also provides a kind of production technology of novel environment friendly chrome corundum brick, the production technology includes as follows
Step: according to the proportion by the dense alumina, Brown Alundum, chromium oxide powder, alpha-alumina, electrofused mullite, titanium dioxide powder,
Pulvis kolleroang is added in carborundum powder, degumming agent, organic binder and bonding agent, and continuous mixed grind 50 ~ 60 minutes is uniformly mixed
Afterwards, it suppresses to obtain green body using machine pressure mode, low-temperature bake 6 ~ 10 hours at 150 ~ 280 DEG C, through 100 ~ 110 DEG C of dryings 24 ~
36 hours, 6 ~ 10 hours were kept the temperature through 1380 ~ 1430 DEG C and is burnt into obtain the novel environment friendly chrome corundum brick.
The beneficial effects of the present invention are:
Rationally, production technology is environmentally friendly for the chrome corundum brick ingredient design, and production gained chrome corundum brick intensity is high, resistance to height
Temperature, corrosion resistance is strong, and long service life, production cost is low, good in economic efficiency.
Specific embodiment
A kind of novel environment friendly chrome corundum brick of the present invention, the chrome corundum brick include the ingredient of following parts by weight: being caused
Close corundum: 30 ~ 50 parts, Brown Alundum: 20 ~ 40 parts, chromium oxide powder: 15 ~ 25 parts, alpha-alumina: 10 ~ 15 parts, electrofused mullite:
10 ~ 15 parts, titanium dioxide powder: 5 ~ 10 parts, carborundum powder: 5 ~ 10 parts, degumming agent: 1 ~ 5 part, organic binder: 1 ~ 5 part, in conjunction with
Agent: 1 ~ 5 part.
Further, the chrome corundum brick includes the ingredient of following parts by weight: dense alumina: 40 ~ 50 parts, Brown Alundum: 30 ~
40 parts, chromium oxide powder: 15 ~ 20 parts, alpha-alumina: 12 ~ 15 parts, electrofused mullite: 13 ~ 15 parts, titanium dioxide powder: 5 ~ 8 parts,
Carborundum powder: 6 ~ 10 parts, degumming agent: 1 ~ 3 part, organic binder: 1 ~ 4 part, bonding agent: 2 ~ 5 parts.
Further, the chrome corundum brick includes the ingredient of following parts by weight: dense alumina: 40 parts, Brown Alundum: and 30 parts,
Chromium oxide powder: 20 parts, alpha-alumina: 13 parts, electrofused mullite: 14 parts, titanium dioxide powder: 7 parts, carborundum powder: 8 parts, solution
Jelly: 3 parts, organic binder: 2 parts, bonding agent: 3 parts.
Further, the Alpha-alumina Powder Particle Size < 0.044mm.
Further, the bonding agent is aluminum sulfate saturated solution.
Further, the degumming agent is ammonium hydroxide or 2-amino-2-methyl-1-propanol.
Further, the organic binder includes phenolic resin or epoxy resin.
Meanwhile the present invention also provides a kind of production technology of novel environment friendly chrome corundum brick, the production technology includes as follows
Step: according to the proportion by the dense alumina, Brown Alundum, chromium oxide powder, alpha-alumina, electrofused mullite, titanium dioxide powder,
Pulvis kolleroang is added in carborundum powder, degumming agent, organic binder and bonding agent, and continuous mixed grind 50 ~ 60 minutes is uniformly mixed
Afterwards, it suppresses to obtain green body using machine pressure mode, low-temperature bake 6 ~ 10 hours at 150 ~ 280 DEG C, through 100 ~ 110 DEG C of dryings 24 ~
36 hours, 6 ~ 10 hours were kept the temperature through 1380 ~ 1430 DEG C and is burnt into obtain the novel environment friendly chrome corundum brick.
It should be noted that the above examples are only used to illustrate the technical scheme of the present invention and are not limiting.Although referring to compared with
Good embodiment describes the invention in detail, those skilled in the art should understand that, it can be to the technology of invention
Scheme is modified or replaced equivalently, and without departing from the range of technical solution of the present invention, should all be covered in power of the invention
In sharp claimed range.
Claims (8)
1. a kind of novel environment friendly chrome corundum brick, which is characterized in that the chrome corundum brick includes the ingredient of following parts by weight: fine and close rigid
It is beautiful: 30 ~ 50 parts, Brown Alundum: 20 ~ 40 parts, chromium oxide powder: 15 ~ 25 parts, alpha-alumina: 10 ~ 15 parts, electrofused mullite: 10 ~
15 parts, titanium dioxide powder: 5 ~ 10 parts, carborundum powder: 5 ~ 10 parts, degumming agent: 1 ~ 5 part, organic binder: 1 ~ 5 part, bonding agent: 1
~ 5 parts.
2. novel environment friendly chrome corundum brick according to claim 1, which is characterized in that the chrome corundum brick includes following weight
The ingredient of part: dense alumina: 40 ~ 50 parts, Brown Alundum: 30 ~ 40 parts, chromium oxide powder: 15 ~ 20 parts, alpha-alumina: 12 ~ 15 parts,
Electrofused mullite: 13 ~ 15 parts, titanium dioxide powder: 5 ~ 8 parts, carborundum powder: 6 ~ 10 parts, degumming agent: 1 ~ 3 part, organic binder: 1
~ 4 parts, bonding agent: 2 ~ 5 parts.
3. novel environment friendly chrome corundum brick according to claim 1, which is characterized in that the chrome corundum brick includes following weight
The ingredient of part: dense alumina: 40 parts, Brown Alundum: 30 parts, chromium oxide powder: 20 parts, alpha-alumina: 13 parts, electrofused mullite:
14 parts, titanium dioxide powder: 7 parts, carborundum powder: 8 parts, degumming agent: 3 parts, organic binder: 2 parts, bonding agent: 3 parts.
4. novel environment friendly chrome corundum brick according to claim 1, which is characterized in that the Alpha-alumina Powder Particle Size <
0.044mm。
5. novel environment friendly chrome corundum brick according to claim 1, which is characterized in that the bonding agent is that aluminum sulfate saturation is molten
Liquid.
6. novel environment friendly chrome corundum brick according to claim 1, which is characterized in that the degumming agent is ammonium hydroxide or 2- ammonia
Base-2- methyl-1-propyl alcohol.
7. novel environment friendly chrome corundum brick according to claim 1, which is characterized in that the organic binder includes phenolic aldehyde tree
Rouge or epoxy resin.
8. a kind of production technology of the novel environment friendly chrome corundum brick as described in any one of claim 1 ~ 7, which is characterized in that institute
Production technology is stated to include the following steps: the dense alumina, Brown Alundum, chromium oxide powder, alpha-alumina, electric smelting according to the proportion
Pulvis kolleroang, continuous mixed grind is added in mullite, titanium dioxide powder, carborundum powder, degumming agent, organic binder and bonding agent
It 50 ~ 60 minutes, after mixing, suppresses to obtain green body using machine pressure mode, low-temperature bake 6 ~ 10 hours at 150 ~ 280 DEG C,
It is 24 ~ 36 hours dry through 100 ~ 110 DEG C, 6 ~ 10 hours, which are kept the temperature, through 1380 ~ 1430 DEG C is burnt into obtain the novel environment friendly chrome corundum brick.
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| CN201811501585.XA CN109320272A (en) | 2018-12-10 | 2018-12-10 | A kind of novel environment friendly chrome corundum brick and its production technology |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111393176A (en) * | 2020-04-09 | 2020-07-10 | 郑州正仟新材料有限公司 | Production method of novel composite corundum brick for blast furnace |
| CN114853454A (en) * | 2022-05-05 | 2022-08-05 | 宜兴市锅炉密封工程有限公司 | High-strength compact zirconium-chromium corundum brick and preparation method thereof |
| CN115259872A (en) * | 2022-08-15 | 2022-11-01 | 郑州中本耐火科技股份有限公司 | Mullite high-strength acid-resistant baking-free brick and preparation method thereof |
| CN116924781A (en) * | 2023-08-14 | 2023-10-24 | 山东淄博沈淄耐火材料有限公司 | High-temperature tin bath bottom brick for float glass production and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111393176A (en) * | 2020-04-09 | 2020-07-10 | 郑州正仟新材料有限公司 | Production method of novel composite corundum brick for blast furnace |
| CN114853454A (en) * | 2022-05-05 | 2022-08-05 | 宜兴市锅炉密封工程有限公司 | High-strength compact zirconium-chromium corundum brick and preparation method thereof |
| CN115259872A (en) * | 2022-08-15 | 2022-11-01 | 郑州中本耐火科技股份有限公司 | Mullite high-strength acid-resistant baking-free brick and preparation method thereof |
| CN116924781A (en) * | 2023-08-14 | 2023-10-24 | 山东淄博沈淄耐火材料有限公司 | High-temperature tin bath bottom brick for float glass production and preparation method thereof |
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