CN1341574A - Chrome diamond spar product - Google Patents
Chrome diamond spar product Download PDFInfo
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- CN1341574A CN1341574A CN 00123760 CN00123760A CN1341574A CN 1341574 A CN1341574 A CN 1341574A CN 00123760 CN00123760 CN 00123760 CN 00123760 A CN00123760 A CN 00123760A CN 1341574 A CN1341574 A CN 1341574A
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Abstract
The present invention discloses a chrome corundum product, and is characterized by that it adopts the aluminium-chrome molten slag produced in the course of production of metal chrome as source of chromium oxide in the mixing material, and adds proper quantity of aluminium oxide fine powder so as to greatly reduce production cost of chrome corundum product. The chrome corundum product made up by means of said invented method is high in strength and volume density, and good in resistance to slag, and can be used as high-temp. furnace lining of carbon black reaction furnace, coal-water fluid gasification furnace, residuum gasiification furnace and cement kiln, etc.
Description
The present invention relates to a kind of chromium corundum goods, particularly the chromium corundum goods of producing with aluminium chromium slag.
Industrial Stoves such as black reactor, synthetic ammonia residual oil gasifier and lead-zinc smelting stove, serious or high temperature corrode seriously extensively adopts the chromium corundum goods as the inner lining of kiln material because of the slagging of retractory.
Known technical literature 1 " the trial-production production and the use of alumina chrome brick " [" refractory materials " 1990,24 (2) 29-31] and document 2 Chinese patent CN1227202A (application number 98121106.2) disclose respectively and adopt aluminium chromium slag to make the method that raw material is made the chromium corundum goods, different is that the batching that adopts in the document 1 is the method that aluminium chromium slag adds small amounts magnesium, the batching that adopts in the document 2 is the method for full aluminium chromium slag, the weak point of aforesaid method is that the coking property of preparing burden is poor, the goods high-temperature behavior, cold crushing strength and volume density are all lower, over-all properties is poor, directly influences the work-ing life of goods.
The object of the present invention is to provide a kind of chromium corundum goods of with low cost, excellent performance.
The material of chromium corundum goods of the present invention consists of (by weight):
Aluminium chromium slag 50～97%
Aluminum oxide fine powder 3～50%
Wedding agent (adding) 2～12%
Wedding agent can be sulfonated lignin, phosphoric acid, phosphoric acid salt, dextrin, spent pulping liquor, silicon sol or pure calcium aluminate cement.
Aluminium chromium slag is a kind of aluminium chromium eutectic that the chromoxide green that is not reduced in the chromium metal production process and aluminum oxide form, its Cr
2O
3+ Al
2O
3Content should be greater than 90%.
Aggregate is made of aluminium chromium solid impurity particle, and granularity is 8～0mm, and wherein the particle greater than 0.1mm accounts for more than 90% of particle total amount.
The matrix part is made of aluminum oxide fine powder and aluminium chromium slag fine powder, and granularity is smaller or equal to 0.1mm.
Aluminum oxide fine powder can be any in commercial alumina fine powder, sintered alumina fine powder and the fused corundom fine powder in the matrix, also can be the wherein combination of two kinds or three kinds arbitrary proportions, and aluminum oxide fine powder accounts for 10～100% of matrix gross weight.
When employing added the moulding of water vibrating casting, wedding agent was a pure calcium aluminate cement, and add-on is 2～12%, and amount of water (adding) is 3～10%.
When adopting semidrying compression moulding, wedding agent is a kind of in sulfonated lignin, phosphoric acid, phosphoric acid salt, dextrin, the spent pulping liquor, and its add-on (adding) is 2～7%.
Firing temperature is 1500～1800 ℃.
Following indefiniteness embodiment is used to explain the present invention, adopts national standard to measure the performance of goods in these embodiments, as Al
2O
3, Cr
2O
3, MgO, Fe
2O
3Content, volume density, cold crushing strength, refractoriness under load and heavily burn line variation etc.
Embodiment 1: make raw material with aluminium chromium slag and aluminum oxide fine powder, adopt phosphoric acid to make wedding agent, prepared a kind of chromium corundum goods, proportioning and performance see Table 1.
Table 1
| Comparative Examples 1 * | Comparative Examples 2 * | Embodiment 1 | |||
| Ratio of components | Aluminium chromium slag 5～0mm, % | ????84 | |||
| Aluminum oxide fine powder＜60 μ m, % | ????16 | ||||
| Phosphoric acid (adding), % | ????2.5 | ????2.5 | |||
| Spent pulping liquor (adding), % | ????2.5 | ?????- | |||
| Chemical ingredients, % | ????Al 2O 3 | ????70.30 | ????68.35 | ????84.12 | |
| ????Cr 2O 3 | ????17.16 | ????16.80 | ????12.78 | ||
| ????MgO | ????2.38 | ????2.28 | ????0.48 | ||
| ????Fe 2O 3 | ????0.62 | ????0.48 | ????0.23 | ||
| ????SiO 2 | ????0.87 | ????1.12 | ????0.35 | ||
| Volume density, g/cm 3 | ????2.89 | ????2.96 | ????3.40 | ||
| Cold crushing strength, MPa | ????48.4 | ????＞92.9 | ????203 | ||
| Heavily burn line change (1600 ℃, 3h), % | ????+0.1 | ||||
| Apparent porosity, % | ????17.5 | ????18 | ????17 | ||
* Comparative Examples 1 and Comparative Examples 2 are derived from " refractory materials ", 1990,24 (2) 29-31
The result who is provided by table 1 as can be seen, it is main raw material that embodiment 1 adopts aluminium chromium slag, add the chrome corundum brick that the appropriate amount of alumina fine powder is made, not only ferric oxide, silicon oxide and magnesium oxide foreign matter content be far below Comparative Examples, and performances such as volume density and cold crushing strength are higher than the performance that adopts aluminium chromium slag to add the chromium corundum goods that magnesium oxide makes significantly.
Embodiment 2: adopt aluminium chromium slag and alumina powder as main raw material, make wedding agent with pure calcium aluminate cement, add a small amount of admixture, as tripoly phosphate sodium STPP or Sodium hexametaphosphate 99 etc., add water 6.5%, mix the after vibration casting, burn till at 1600 ℃ after maintenance, drying, its proportioning and performance see Table 2.
Table 2
| Comparative Examples 3 * | Embodiment 2 | |||
| Ratio of components | Fused corundom 5～0mm, % | ????- | ||
| Chromoxide green fine powder＜0.1mm, % | ????10 | ????- | ||
| Aluminium chromium slag 5～0mm, % | ????78 | |||
| Aluminum oxide fine powder＜60 μ m, % | ????20 | |||
| Pure calcium aluminate cement, % | ????2 | |||
| Water (adding), % | ????6.5 | |||
| Chemical ingredients, % | ????Al 2O 3 | ????85.18 | ||
| ????Cr 2O 3 | ????10 | ????11.63 | ||
| ????CaO | ????0.45 | ????0.43 | ||
| Volume density, g/cm 3 | ????3.21 | ????3.24 | ||
| Apparent porosity, % | ????14.9 | ????14 | ||
| Cold crushing strength, Mpa | ????62.3 | ????+189.3 | ||
* Comparative Examples 3 is derived from " refractory materials ", 1990,24 (3) 21-23
The result who is provided by table 2 as can be seen, embodiment 2 adopts aluminium chromium slag and alumina powder as main raw material, make wedding agent with pure calcium aluminate cement, the chromium corundum goods that utilize the vibrating casting moulding process to make, its performance is significantly better than the chromium corundum goods that adopt fused corundom and chromoxide green fine powder to make.The goods of embodiment 2 burn the back compressive strength and exceed much than Comparative Examples 3.
Claims (7)
1 one kinds of chromium corundum goods, its ingredient groups becomes (by weight):
Aluminium chromium slag 50～97%
Aluminum oxide fine powder 3～50%
Wedding agent (adding) 2～12%
2 chromium corundum goods as claimed in claim 1 is characterized in that: aluminium chromium slag is a kind of aluminium chromium eutectic that the chromoxide green that is not reduced in the chromium metal production process and aluminum oxide form, its Cr
2O
3+ Al
2O
3Content should be greater than 90%.
3 chromium corundum goods as claimed in claim 1 is characterized in that: aggregate is made of aluminium chromium solid impurity particle, and granularity is 8～0mm, and wherein the particle greater than 0.1mm accounts for more than 90% of aggregate total amount.
4 chromium corundum goods as claimed in claim 1 is characterized in that: the matrix part is made of aluminum oxide fine powder and aluminium chromium slag fine powder, and granularity is smaller or equal to 0.1mm.
5 chromium corundum goods as claimed in claim 1, it is characterized in that: aluminum oxide fine powder can be any in commercial alumina fine powder, sintered alumina fine powder and the fused corundom fine powder in the matrix, also can be the wherein combination of two kinds or three kinds arbitrary proportions, aluminum oxide fine powder accounts for 10～100% of matrix gross weight.
6 chromium corundum goods as claimed in claim 1 is characterized in that: can adopt to add the moulding of water vibrating casting, wedding agent is a pure calcium aluminate cement, and add-on is 2～12%, and amount of water (adding) is 3～10%.
7 chromium corundum goods as claimed in claim 1 is characterized in that: can adopt semidrying compression moulding, wedding agent is a kind of in sulfonated lignin, phosphoric acid, phosphoric acid salt, dextrin, the spent pulping liquor, and its add-on (adding) is 2～7%.
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|---|---|---|---|
| CN 00123760 CN1341574A (en) | 2000-09-06 | 2000-09-06 | Chrome diamond spar product |
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|---|---|---|---|
| CN 00123760 CN1341574A (en) | 2000-09-06 | 2000-09-06 | Chrome diamond spar product |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1296323C (en) * | 2004-04-30 | 2007-01-24 | 洛阳耐火材料研究院 | Composite refractory materials based on chrome |
| CN100361918C (en) * | 2006-01-10 | 2008-01-16 | 中国铝业股份有限公司 | Water hardened aluminium oxide pouring material binding agent and preparation process thereof |
| CN103011780A (en) * | 2012-12-24 | 2013-04-03 | 宜兴市张泽浇注耐火材料有限公司 | Manufacturing technology of chrome corundum energy-saving honeycomb body |
| CN103058672A (en) * | 2011-10-20 | 2013-04-24 | 辽宁科技大学 | Aluminum chromium-mullite refractory material and its production method |
| CN101687711B (en) * | 2007-07-11 | 2013-09-04 | 法商圣高拜欧洲实验及研究中心 | A sintered product based on alumina and chromium oxide |
| CN103387400A (en) * | 2013-08-06 | 2013-11-13 | 洛阳利尔耐火材料有限公司 | Backing brick for coal water slurry pressurized gasifier and preparation method of backing brick |
| CN103896609A (en) * | 2014-03-08 | 2014-07-02 | 锦州集信高温材料有限公司 | Chromium corundum material and production method thereof |
| CN104529494A (en) * | 2015-01-21 | 2015-04-22 | 北京科技大学 | Ferro-silicon nitride/alumina-chrome slag refractory matter for cement kiln transition zone and preparation method of refractory matter |
| CN105777159A (en) * | 2016-03-17 | 2016-07-20 | 锦州集信高温材料有限公司 | Method for producing large-scale copper smelting furnace lining bricks by smelting chromium slag |
| CN106242535A (en) * | 2016-08-09 | 2016-12-21 | 上海华培动力科技有限公司 | A kind of low pressure casting and suction pouring heat-resisting alloy stalk formula and preparation method thereof |
| CN107311675A (en) * | 2017-07-12 | 2017-11-03 | 洛阳轩石高温材料有限公司 | A kind of air brick prepared by industry byproduct aluminium chromium slag and preparation method thereof |
| CN107721397A (en) * | 2017-11-01 | 2018-02-23 | 安徽马钢耐火材料有限公司 | A kind of pink fused alumina chamotte and preparation method thereof |
| CN107857578A (en) * | 2017-12-22 | 2018-03-30 | 宜兴市张泽浇注耐火材料有限公司 | A kind of waste incineration rotary kiln lining refractory material and preparation method thereof |
| CN108101516A (en) * | 2018-01-15 | 2018-06-01 | 中钢集团洛阳耐火材料研究院有限公司 | A kind of alumina-silica Cr refractory product and preparation method thereof |
| CN108373321A (en) * | 2018-01-25 | 2018-08-07 | 江苏长城窑炉工程有限公司 | A kind of inner liner of rotary kiln high thermal shock chromium steel jade material and preparation method thereof and application |
| CN108395226A (en) * | 2018-04-11 | 2018-08-14 | 武汉科技大学 | A kind of processing method of environment-friendly type aluminium chromium slag |
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| CN109626970A (en) * | 2019-02-20 | 2019-04-16 | 中钢集团耐火材料有限公司 | A kind of nonferrous smelting fusing smelting furnace liquidus lower section furnace wall refractory material and preparation method thereof |
| CN109626972A (en) * | 2019-02-20 | 2019-04-16 | 中钢集团耐火材料有限公司 | A kind of nonferrous smelting fusing smelting furnace top furnace wall refractory material and preparation method thereof |
| CN109650856A (en) * | 2019-02-20 | 2019-04-19 | 中钢集团耐火材料有限公司 | A kind of high-strength fusing smelting furnace of coloured strengthening smelting |
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| CN110015677A (en) * | 2019-05-17 | 2019-07-16 | 武汉科技大学 | It is a kind of using aluminium chromium slag as electro-corundum of major ingredient and preparation method thereof |
| CN110550960A (en) * | 2019-08-30 | 2019-12-10 | 锦州集信高温材料有限公司 | Method for producing zinc smelting kiln lining brick by smelting chromium slag |
| CN111533543A (en) * | 2020-05-22 | 2020-08-14 | 中钢南京环境工程技术研究院有限公司 | High-phosphorus aluminum chromium brick for waste melting furnace and preparation method thereof |
-
2000
- 2000-09-06 CN CN 00123760 patent/CN1341574A/en active Pending
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|---|---|---|---|---|
| CN1296323C (en) * | 2004-04-30 | 2007-01-24 | 洛阳耐火材料研究院 | Composite refractory materials based on chrome |
| CN100361918C (en) * | 2006-01-10 | 2008-01-16 | 中国铝业股份有限公司 | Water hardened aluminium oxide pouring material binding agent and preparation process thereof |
| CN101687711B (en) * | 2007-07-11 | 2013-09-04 | 法商圣高拜欧洲实验及研究中心 | A sintered product based on alumina and chromium oxide |
| CN103058672A (en) * | 2011-10-20 | 2013-04-24 | 辽宁科技大学 | Aluminum chromium-mullite refractory material and its production method |
| CN103011780B (en) * | 2012-12-24 | 2014-04-16 | 宜兴市张泽浇注耐火材料有限公司 | Manufacturing technology of chrome corundum energy-saving honeycomb body |
| CN103011780A (en) * | 2012-12-24 | 2013-04-03 | 宜兴市张泽浇注耐火材料有限公司 | Manufacturing technology of chrome corundum energy-saving honeycomb body |
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| CN108373321A (en) * | 2018-01-25 | 2018-08-07 | 江苏长城窑炉工程有限公司 | A kind of inner liner of rotary kiln high thermal shock chromium steel jade material and preparation method thereof and application |
| CN108395226A (en) * | 2018-04-11 | 2018-08-14 | 武汉科技大学 | A kind of processing method of environment-friendly type aluminium chromium slag |
| CN109626972B (en) * | 2019-02-20 | 2021-08-27 | 中钢洛耐科技服份有限公司 | Refractory material for upper furnace wall of non-ferrous smelting melting furnace and preparation method thereof |
| CN109650856B (en) * | 2019-02-20 | 2021-03-12 | 中钢洛耐科技股份有限公司 | Non-ferrous intensive smelting is with melting stove that excels in |
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| CN109650856A (en) * | 2019-02-20 | 2019-04-19 | 中钢集团耐火材料有限公司 | A kind of high-strength fusing smelting furnace of coloured strengthening smelting |
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| CN109852866A (en) * | 2019-02-20 | 2019-06-07 | 中钢集团耐火材料有限公司 | A kind of nonferrous smelting fusing smelting furnace liquidus furnace wall and liquid outlet position refractory material and preparation method thereof |
| CN109626972A (en) * | 2019-02-20 | 2019-04-16 | 中钢集团耐火材料有限公司 | A kind of nonferrous smelting fusing smelting furnace top furnace wall refractory material and preparation method thereof |
| CN109626970B (en) * | 2019-02-20 | 2021-08-27 | 中钢洛耐科技服份有限公司 | Refractory material for furnace wall below liquid line of non-ferrous smelting melting furnace and preparation method thereof |
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| CN110015677A (en) * | 2019-05-17 | 2019-07-16 | 武汉科技大学 | It is a kind of using aluminium chromium slag as electro-corundum of major ingredient and preparation method thereof |
| CN110550960A (en) * | 2019-08-30 | 2019-12-10 | 锦州集信高温材料有限公司 | Method for producing zinc smelting kiln lining brick by smelting chromium slag |
| CN110550960B (en) * | 2019-08-30 | 2022-06-28 | 锦州集信高温材料有限公司 | Method for producing zinc smelting kiln lining brick by smelting chromium slag |
| CN111533543A (en) * | 2020-05-22 | 2020-08-14 | 中钢南京环境工程技术研究院有限公司 | High-phosphorus aluminum chromium brick for waste melting furnace and preparation method thereof |
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