CN102391006A - Alkaline atmosphere refractory brick made from red mud - Google Patents
Alkaline atmosphere refractory brick made from red mud Download PDFInfo
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- CN102391006A CN102391006A CN201110230245XA CN201110230245A CN102391006A CN 102391006 A CN102391006 A CN 102391006A CN 201110230245X A CN201110230245X A CN 201110230245XA CN 201110230245 A CN201110230245 A CN 201110230245A CN 102391006 A CN102391006 A CN 102391006A
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- red mud
- refractory brick
- alkaline atmosphere
- alkaline
- refractory
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- Furnace Housings, Linings, Walls, And Ceilings (AREA)
Abstract
The invention provides an alkaline atmosphere refractory brick made from red mud, wherein the refractory brick is suitable for being used under an alkaline atmosphere condition for a long time and used for changing the situation that alkaline refractory materials produced by foreign companies are used in the industry of the building materials, such as cement, glass and the like, in China for a long time, particularly, the red mud which is the alumina industrial waste is adopted as a main raw material, thus the waste is changed in wealth, the pollution of the alumina red mud to the environment is reduced, the characteristic that the red mud per se has higher content in inorganic alkali and gelatinizers, and the production cost of enterprises is reduced. The alkaline atmosphere refractory brick comprises the components of 15wt% of inorganic bond, 10wt% of phosphate compound curing agent and 75wt% of alumina red mud fillers, has a good use effect in an alkaline atmosphere environment below 1700 DEG C, can be used for reducing self alkalization losses by more than 98% compared with that of the traditional alkaline refractory material, and has cracking resistance.
Description
Technical field
The present invention relates to a kind of refractory brick, especially a kind ofly make alkaline atmosphere refractory brick with red mud.
Background technology
Basic refractory is the critical material that cement kiln clinkering zone, transitional zone and regenerator chamber of glass kiln checker be unable to do without, and the quality of basic refractory is one of deciding factor that influences kiln work-ing life, production efficiency.So world various countries bar none the research and development of basic refractory, produce as main direction, to embody its level of aggregation and strength.
By contrast, the result of use of homemade basic refractory is unsatisfactory, and high-end basic refractory is not as external product.On large-scale float glass furnace, the average out to 2～3 years in work-ing life of refractory materials comprises high purity refractory brick.On large-size cement kiln (daily output is more than 2000 tons), clinkering zone normalizing point (high-temperature zone) does not all use homemade refractory brick.Reason is: homemade refractory brick can only use at non-normalizing point, or on the lower non-building materials kiln of temperature.
Summary of the invention
Problem to be solved by this invention provides a kind of refractory brick that is adapted at life-time service under the alkaline atmospheric condition; Be used to solve the basic refractory general layout that building material industry life-time service offshore companies such as cement in China, glass produce, especially adopt aluminum oxide industry waste-red mud, turn waste into wealth as main raw material; Reduced the pollution of alumina laterite to environment; Utilize mineral alkali of red mud own and the higher characteristic of gelatinization agents content, reduced the enterprise production cost, and product performance are stable.
For solving the problems of the technologies described above, technical scheme of the present invention is: a kind of refractory brick that is adapted at life-time service under the alkaline atmospheric condition, form by inorganic adhesive, 10% phosphate cpd solidifying agent, the 75% alumina laterite filler of 15% weight percent.
Described inorganic adhesive by weight percent be 70% silicon sol, 25% zinc oxide, 5% alkaline water glass in reaction kettle, stirring reaction made in 45 minutes under 95 degrees centigrade of envrionment temperatures, wherein the silicon sol modulus is 2.
Described phosphate cpd solidifying agent by weight percent be 65% phosphoric acid, 35% extra light calcined magnesia in reaction kettle, stirring reaction made in 120 minutes under 110 degrees centigrade of envrionment temperatures, wherein phosphoric acid effective concentration is 85%.
Described alumina laterite filler is the trade waste that the Bayer process process for making alumina is produced, and what must specify is: the red mud water ratio is not more than 2%, and fineness is greater than 300 orders, and wherein iron oxide content must not be greater than 1%.Make through drying, grinding, magnetic separation by the Bayer process alumina laterite.
The working method of the present invention's alkalescence atmosphere refractory brick does not have special limitation; Just inorganic adhesive, 10% phosphate cpd solidifying agent, the 75% alumina laterite filler with above-mentioned 15% weight, hundred ratios mixes in the acid and alkali-resistance container and abundant the stirring 5 minutes; Press down in pressing machine and to process piece, baking is to being drying to obtain finished product in 150 degrees centigrade of drying rooms.Its density is 2.7g/cm
3-3.5g/cm
3, pH value is 9-12,20 ℃≤20 minutes set time.
The present invention's alkalescence atmosphere refractory brick alkali resistant ability is strong; Especially result of use is good in the alkaline atmosphere of temperature below 1700 degrees centigrade; More traditional basic refractory can be eliminated self to alkalize and lose more than 98% and cracking resistance, can be applicable to high-temperature alkaline atmosphere field.
Embodiment
70 kilograms of silicon sol, 25 kilograms of zinc oxide, 5 kilograms alkaline water glass are dropped in the reaction kettle, be warming up to 95 degrees centigrade of stirring reactions 45 minutes, make inorganic adhesive.
65 kilograms phosphoric acid, 35 kilograms extra light calcined magnesia are dropped in the reaction kettle, be warming up to 110 degrees centigrade of stirring reactions 120 minutes, make the phosphate cpd solidifying agent.
With 100 kilograms of Bayer process alumina laterites through drying, grinding, magnetic separation; Required red mud water ratio is not more than 2%; Fineness is greater than 300 orders; And wherein iron oxide content must not be greater than 1%, and described alumina laterite filler is the trade waste that the Bayer process process for making alumina is produced, and makes the alumina laterite filler.
15 kilograms of inorganic adhesives, 10 kilograms of phosphate cpd solidifying agent, 75 kilograms of composite inorganic powder fillers are mixed in antiacid alkali container and abundant the stirring 5 minutes, press down in pressing machine and process piece, baking is to being drying to obtain finished product in 150 degrees centigrade of drying rooms.
Claims (3)
1. make alkaline atmosphere refractory brick with red mud for one kind, it is characterized in that: its maximum operation (service) temperature can reach 1700 degrees centigrade.
2. according to claim 1ly make alkaline atmosphere refractory brick with red mud, it is characterized in that: inorganic adhesive, 10% phosphate cpd solidifying agent, 75% alumina laterite filler by 15% weight, hundred ratios are formed.
3. red mud according to claim 1 is made alkaline atmosphere refractory brick, it is characterized in that: be applied to high-temperature alkaline atmosphere field, can eliminate self alkalization loss and cracking resistance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110230245XA CN102391006A (en) | 2011-08-07 | 2011-08-07 | Alkaline atmosphere refractory brick made from red mud |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110230245XA CN102391006A (en) | 2011-08-07 | 2011-08-07 | Alkaline atmosphere refractory brick made from red mud |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102391006A true CN102391006A (en) | 2012-03-28 |
Family
ID=45858414
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110230245XA Pending CN102391006A (en) | 2011-08-07 | 2011-08-07 | Alkaline atmosphere refractory brick made from red mud |
Country Status (1)
| Country | Link |
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| CN (1) | CN102391006A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108101576A (en) * | 2018-01-19 | 2018-06-01 | 山东理工大学 | A kind of preparation method of red mud type water-permeable brick |
| CN110366546A (en) * | 2017-03-01 | 2019-10-22 | 氟化学有限公司法兰克福 | The savings medium of new material and its manufacture to be used as in sensitive energy-storage system within the scope of low, medium and high temperature |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1844029A (en) * | 2006-04-28 | 2006-10-11 | 武汉理工大学 | Red mud autoclaved brick and preparation method thereof |
-
2011
- 2011-08-07 CN CN201110230245XA patent/CN102391006A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1844029A (en) * | 2006-04-28 | 2006-10-11 | 武汉理工大学 | Red mud autoclaved brick and preparation method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110366546A (en) * | 2017-03-01 | 2019-10-22 | 氟化学有限公司法兰克福 | The savings medium of new material and its manufacture to be used as in sensitive energy-storage system within the scope of low, medium and high temperature |
| CN108101576A (en) * | 2018-01-19 | 2018-06-01 | 山东理工大学 | A kind of preparation method of red mud type water-permeable brick |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120328 |