CN103204684A - Chromium zirconium corundum mullite brick suitable for burning of waste liquid and wastes of petrochemical industry - Google Patents
Chromium zirconium corundum mullite brick suitable for burning of waste liquid and wastes of petrochemical industry Download PDFInfo
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- CN103204684A CN103204684A CN2012105492395A CN201210549239A CN103204684A CN 103204684 A CN103204684 A CN 103204684A CN 2012105492395 A CN2012105492395 A CN 2012105492395A CN 201210549239 A CN201210549239 A CN 201210549239A CN 103204684 A CN103204684 A CN 103204684A
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- corundum
- fine powder
- waste liquid
- petrochemical industry
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Abstract
The invention discloses a refractory material, especially a chromium zirconium corundum mullite brick suitable for burning of waste liquid and wastes of petrochemical industry. The mullite brick is characterized by comprising synthetic mullite aggregate, synthetic corundum aggregate, corundum fine powder, alpha-alumina micropowder, a composite binder, Cr2O3 fine powder and water. According to a formula amount, the materials is mixed by using a planetary mixer and molded by pressing, and the molded adobe is fired under 80-110 DEG C for 24-48 hours, and roasted under 1560-1610 DEG C for 3.5-4.5 hours. The invention further discloses a preparation method of the chromium zirconium corundum mullite brick. The invention is beneficial in that the chromium zirconium corundum mullite brick is relatively high in refractoriness and high-temperature intensity, and has excellent performances of erosion resistance, thermal shock resistance, stripping resistance, and low creep deformation. The brick is suitable for inner liners of a waste liquid incinerator of the petrochemical industry and a waste incinerator of a rotary kiln industry, and is simple in technology and easy to realize the manufacture.
Description
Technical field
The present invention relates to a kind of refractory materials, relate in particular to a kind of zirconium chromium corundum mullite brick and manufacture method thereof that is suitable for petrochemical industry waste liquid, castoff burning.
Background technology
The waste liquid of petrochemical industry, waste liquid composition complexity, can run into a lot of problems in the treating processes, waste liquid, waste liquid often all contains certain acid, alkali concn, have sodium salt and part heavy metal component simultaneously concurrently, the other industries waste, composition with the petrochemical industry liquid waste disposal in treating processes has concurrently roughly the same, processing to petrochemical industry waste liquid and other industries waste, the general mode that adopts the incinerator burning disposal, in petrochemical industry waste liquid and castoff burning treating processes, because waste liquid and waste composition complexity, moisture content is more, has the existence of certain acid base concentration and part heavy component and sodium salt simultaneously, in the high-temp combustion treating processes, to selecting for use of incinerator lining material, must have high temperature resistant, anti-erosion and good thermal shock resistance, low creep and antistrip performance preferably.General high chrome corundum brick and the high alumina brick of adopting of incinerator lining material.When high chrome corundum brick exists with a large amount of basic oxide at oxidizing atmosphere, under certain temperature condition, cause secondary pollution easily, high alumina brick and alkali have expansion reaction, cause disorganization, cause the generation of crackle, and high alumina brick peels off and violent damage.
Summary of the invention
The objective of the invention is to overcome the deficiency of prior art, a kind of zirconium chromium corundum mullite brick and manufacture method thereof that is applicable to petrochemical industry waste liquid, castoff burning is provided.
Thinking of the present invention is Fe in the control raw material
2O
3Content, suppress chlorination reaction with the densification of material; Improve matrix portion C r
2O
3Content, utilize mullite (3Al
2O
32SiO
2) characteristics, improve the material solidity to corrosion; Utilize ZrO
2Toughening effect, thermal shock resistance and the intensity of raising material; Utilize combined binder, reduce the sintering temperature of material, improve the intensity of material.
A kind of zirconium chromium corundum mullite brick that is suitable for petrochemical industry waste liquid, castoff burning is characterized in that, the component of manufacturing supplies, and its parts by weight:
Combined binder is mixture, and the component of material has kaolin, SiO
2Micro mist, zircon flour, the weight ratio of material, kaolin: SiO
2Micro mist: zircon flour is 5: 1.5: 5.
Described powder fineness, i.e. granularity:
Corundum fine powder is 320 orders
The αYang Hualv micro mist is 1200 orders
Cr
2O
3Fine powder is 320 orders.
A kind of zirconium chromium corundum mullite brick manufacture method that is suitable for petrochemical industry waste liquid, castoff burning is characterized in that step is as follows:
Press formula ratio, with corundum fine powder, αYang Hualv micro mist, the Cr of three kinds of specifications
2O
3The even premix of fine powder;
Press formula ratio, with the synthetic zircon corundum aggregate of four kinds of specifications and mullite synthesizing aggregate, water, with corundum fine powder, αYang Hualv micro mist, the Cr of three kinds of specifications of premix
2O
3Fine powder and micro mist mix and combined binder, mix through the planet mixing machine, are mixed to evenly;
The material that mixes, through friction press compression moulding, work in-process unit weight 3.15～3.35g/cm
3
The adobe of moulding is through 80～110 ℃ of bakings, and the time is 24～48 hours;
1560～1610 ℃ of following roastings, the time is 3.5～4.5 hours.
Zirconium chromium corundum mullite brick of the present invention and since institute adds zircon decompose after, the existence of dendritic baddeleyite can be attached to the corundum in granules surface, thereby has very high structural strength.Al
2O
3-Cr
2O
3Sosoloid not only is beneficial to direct combination, and is also favourable to thermostability.ZrO
2Toughening effect both can improve intensity, can improve thermostability again.Utilize mullite (3Al
2O
32SiO
2) matter the anti acid alkali performance energy and in matrix, add Cr
2O
3The corrosion resisting property of improving and material being provided will be helped.The low-temperature sintering performance of the favourable raising goods of the adding of combined binder.
Zirconium chromium corundum mullite brick of the present invention, because the kind of bond material is different with add-on, its performance, also different as the soft beginning temperature of lotus, normal temperature resistance to compression/folding strength, anti-erosion, anti-thermal shock stability, ZrO
2The transformation toughening effect can superpose really and improve the performance of material, goods are selected for use in mullite synthesizing particle and the matrix and are added Cr
2O
3Fine powder has good solidity to corrosion to sodium salt and heavy component in acid, alkaline media and the waste liquid, is used for industry liquid waste incinerator and rotary kiln type industrial waste incinerator liners such as petrochemical complex, has use value and promotional value widely.
Beneficial effect of the present invention: zirconium chromium corundum mullite brick has higher refractoriness, hot strength, anti-erosion, anti-thermal shock and antistrip performance.Be applicable to petrochemical industry liquid waste incinerator and rotary kiln type incinerator, be applicable to the liner of refuse, liquid waste incinerator treatment facility.On the liquid waste incinerator and acroleic acid device liquid waste incinerator and rotary kiln type industrial waste incinerator of acrylonitrile installation, demonstrate have hot strength preferably, the performance of anti-erosion, anti-thermal shock, low creep, antistripping, have the characteristics of long service life.Technology of the present invention is simple, makes to be easy to realize.
Embodiment:
Below in conjunction with specific embodiment the present invention is made detailed description further.
Embodiment 1:
With the mullite synthesizing aggregate of 6 parts of 3～5mm, 24 parts of 1～3mm mullite synthesizing aggregates, 12 parts of synthetic zircon corundum aggregates of 1～3mm, 13.5 parts of 0.1～1mm mullite synthesizing aggregates, 8 parts of corundum fine powder, 15 parts of αYang Hualv micro mists, 7.5 parts of Cr
2O
3Fine powder, 14 parts of combined binders, 5.6 parts of water; After mixing at the 3150KN friction press, compression moulding, work in-process unit weight is 3.15～3.35g/cm
3, through 110 ℃ the baking 24 hours after, base substrate residual water-content≤2%.After burning till, by pushed bat kiln or tunnel furnace burn till all can, through 1560～1610 ℃ of following roastings 3.5 hours, get required finished product zirconium chromium corundum mullite brick.
Embodiment 2:
With the mullite synthesizing aggregate of 10 parts of 3～5mm, 20 parts of 1～3mm mullite synthesizing aggregates, 14 parts of synthetic zircon corundum aggregates of 1～3mm, 12 parts of 0.1～1mm mullite synthesizing aggregates, 10 parts of corundum fine powder, 12 parts of αYang Hualv micro mists, 6 parts of Cr
2O
3Fine powder, 16 parts of combined binders, 4.7 parts of water; After mixing at the 3150KN friction press, compression moulding, work in-process unit weight is 3.15～3.35g/cm
3, through 80 ℃ the baking 48 hours after, base substrate residual water-content≤2%.After burning till, by pushed bat kiln or tunnel furnace burn till all can, through 1560～1610 ℃ of following roastings 3.5 hours, get required finished product zirconium chromium corundum mullite brick.
Embodiment 3:
With the mullite synthesizing aggregate of 7 parts of 3～5mm, 22 parts of 1～3mm mullite synthesizing aggregates, 15 parts of synthetic zircon corundum aggregates of 1～3mm, 13 parts of 0.1～1mm mullite synthesizing aggregates, 11 parts of corundum fine powder, 13 parts of αYang Hualv micro mists, 7 parts of Cr
2O
3Fine powder, 12 parts of combined binders, 4.5 parts of water; After mixing at the 3150KN friction press, compression moulding, work in-process unit weight is 3.15～3.35g/cm
3, through 90 ℃ the baking 36 hours after, base substrate residual water-content≤2%.Burn till by pushed bat kiln or tunnel furnace burn till all can, through 1560～1610 ℃ of following roastings 4 hours, get required finished product zirconium chromium corundum mullite brick.
Embodiment 4:
With the mullite synthesizing aggregate of 6.5 parts of 3～5mm, 23 parts of 1～3mm mullite synthesizing aggregates, 16 parts of synthetic zircon corundum aggregates of 1～3mm, 10 parts of 0.1～1mm mullite synthesizing aggregates, 13 parts of corundum fine powder, 11 parts of αYang Hualv micro mists, 8 parts of Cr
2O
3Fine powder, 12.5 parts of combined binders, 4.9 parts of water; After mixing at the 3150KN friction press, compression moulding, work in-process unit weight is 3.15～3.35g/cm
3, through 100 ℃ the baking 24 hours after, base substrate residual water-content≤2%.Burn till by pushed bat kiln or tunnel furnace burn till all can, through 1560～1610 ℃ of following roastings 4 hours, get required finished product zirconium chromium corundum mullite brick.
Embodiment 5:
With the mullite synthesizing aggregate of 8 parts of 3～5mm, 21 parts of 1～3mm mullite synthesizing aggregates, 12 parts of synthetic zircon corundum aggregates of 1～3mm, 15 parts of 0.1～1mm mullite synthesizing aggregates, 8 parts of corundum fine powder, 17 parts of αYang Hualv micro mists, 6 parts of Cr
2O
3Fine powder, 13 parts of combined binders, 5.4 parts of water; After mixing at the 3150KN friction press, compression moulding, work in-process unit weight is 3.15～3.35g/cm
3, through 110 ℃ the baking 24 hours after, base substrate residual water-content≤2%.Burn till by pushed bat kiln or tunnel furnace burn till all can, through 1560～1610 ℃ of following roastings 4.5 hours, get required finished product zirconium chromium corundum mullite brick.
Zirconium chromium corundum mullite brick of the present invention is carried out physicals detects result such as table 1:
Table 1
The physicals of zirconium chromium corundum mullite brick
Claims (3)
1. a zirconium chromium corundum mullite brick that is suitable for petrochemical industry waste liquid, castoff burning is characterized in that, the component of manufacturing supplies, and its parts by weight:
Combined binder is mixture, and the component of material has kaolin, SiO
2Micro mist, zircon flour, the weight ratio of material, kaolin: SiO
2Micro mist: zircon flour is 5: 1.5: 5.
2. a kind of zirconium chromium corundum mullite brick that is suitable for petrochemical industry waste liquid, castoff burning according to claim 1 is characterized in that described powder fineness, i.e. granularity:
Corundum fine powder is 320 orders
The αYang Hualv micro mist is 1200 orders
Cr
2O
3Fine powder is 320 orders.
3. zirconium chromium corundum mullite brick manufacture method that is suitable for petrochemical industry waste liquid, castoff burning is characterized in that step is as follows:
Press formula ratio, with corundum fine powder, αYang Hualv micro mist, the Cr of three kinds of specifications
2O
3The even premix of fine powder;
Press formula ratio, with the synthetic zircon corundum aggregate of four kinds of specifications and mullite synthesizing aggregate, water, with corundum fine powder, αYang Hualv micro mist, the Cr of three kinds of specifications of premix
2O
3Fine powder and micro mist mix and combined binder, mix through the planet mixing machine, are mixed to evenly;
The material that mixes, through friction press compression moulding, work in-process unit weight 3.15～3.35g/cm
3
The adobe of moulding is through 80～110 ℃ of bakings, and the time is 24～48 hours;
1560～1610 ℃ of following roastings, the time is 3.5～4.5 hours.
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|---|---|---|---|
| CN2012105492395A CN103204684A (en) | 2012-12-05 | 2012-12-05 | Chromium zirconium corundum mullite brick suitable for burning of waste liquid and wastes of petrochemical industry |
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|---|---|---|---|
| CN2012105492395A CN103204684A (en) | 2012-12-05 | 2012-12-05 | Chromium zirconium corundum mullite brick suitable for burning of waste liquid and wastes of petrochemical industry |
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| CN103204684A true CN103204684A (en) | 2013-07-17 |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103496992A (en) * | 2013-09-22 | 2014-01-08 | 郑州亨瑞达新材料有限公司 | Chromium zirconium mullite refractory material and preparation method thereof |
| CN104261848A (en) * | 2014-09-23 | 2015-01-07 | 郑州瑞泰耐火科技有限公司 | Chrome-oxide-containing mullite brick and preparation method thereof |
| CN106747365A (en) * | 2017-01-17 | 2017-05-31 | 重庆钢铁集团矿业有限公司冶金材料厂 | The low high-strength zirconia-chromia corundum brick of stomata and its manufacture method |
| CN108675804A (en) * | 2018-06-08 | 2018-10-19 | 郑州凯翔耐火材料有限公司 | A kind of highly heatproof and shockproof mullite brick and its production technology |
| CN109053176A (en) * | 2018-08-31 | 2018-12-21 | 广州市石基耐火材料厂 | Mullite refractory containing chromium and preparation method thereof |
| CN109251044A (en) * | 2018-09-18 | 2019-01-22 | 明光瑞尔非金属材料有限公司 | A kind of high-strength refractory brick and preparation method thereof |
| CN110698185A (en) * | 2019-10-25 | 2020-01-17 | 唐山金山腾宇科技有限公司 | Light corundum-mullite composite refractory material for blast furnace air supply device |
| CN113511923A (en) * | 2021-04-28 | 2021-10-19 | 郑州大学 | Method for strengthening salt corrosion resistance of refractory lining in situ |
| CN113999029A (en) * | 2021-11-17 | 2022-02-01 | 江苏国豪耐火科技有限公司 | Low apparent porosity anti-chloride ion brick and preparation method thereof |
| CN115403393A (en) * | 2022-08-25 | 2022-11-29 | 宜兴瑞泰耐火材料有限公司 | Zirconium mullite brick for high-salt incinerator and preparation method thereof |
| CN116144204A (en) * | 2023-03-02 | 2023-05-23 | 赵志龙 | Separation paint for synthetic mica smelting furnace |
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|---|
| 寿科迪等: "锆英石加入量对莫来石-刚玉材料性能的影响", 《硅酸盐通报》, vol. 28, no. 3, 30 June 2009 (2009-06-30), pages 459 - 463 * |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103496992A (en) * | 2013-09-22 | 2014-01-08 | 郑州亨瑞达新材料有限公司 | Chromium zirconium mullite refractory material and preparation method thereof |
| CN103496992B (en) * | 2013-09-22 | 2015-04-01 | 郑州亨瑞达新材料有限公司 | Chromium zirconium mullite refractory material and preparation method thereof |
| CN104261848A (en) * | 2014-09-23 | 2015-01-07 | 郑州瑞泰耐火科技有限公司 | Chrome-oxide-containing mullite brick and preparation method thereof |
| CN106747365A (en) * | 2017-01-17 | 2017-05-31 | 重庆钢铁集团矿业有限公司冶金材料厂 | The low high-strength zirconia-chromia corundum brick of stomata and its manufacture method |
| CN108675804A (en) * | 2018-06-08 | 2018-10-19 | 郑州凯翔耐火材料有限公司 | A kind of highly heatproof and shockproof mullite brick and its production technology |
| CN109053176A (en) * | 2018-08-31 | 2018-12-21 | 广州市石基耐火材料厂 | Mullite refractory containing chromium and preparation method thereof |
| CN109251044A (en) * | 2018-09-18 | 2019-01-22 | 明光瑞尔非金属材料有限公司 | A kind of high-strength refractory brick and preparation method thereof |
| CN110698185A (en) * | 2019-10-25 | 2020-01-17 | 唐山金山腾宇科技有限公司 | Light corundum-mullite composite refractory material for blast furnace air supply device |
| CN113511923A (en) * | 2021-04-28 | 2021-10-19 | 郑州大学 | Method for strengthening salt corrosion resistance of refractory lining in situ |
| CN113999029A (en) * | 2021-11-17 | 2022-02-01 | 江苏国豪耐火科技有限公司 | Low apparent porosity anti-chloride ion brick and preparation method thereof |
| CN115403393A (en) * | 2022-08-25 | 2022-11-29 | 宜兴瑞泰耐火材料有限公司 | Zirconium mullite brick for high-salt incinerator and preparation method thereof |
| CN116144204A (en) * | 2023-03-02 | 2023-05-23 | 赵志龙 | Separation paint for synthetic mica smelting furnace |
| CN116144204B (en) * | 2023-03-02 | 2024-04-12 | 赵志龙 | Separation paint for synthetic mica smelting furnace |
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Application publication date: 20130717 |