CN101219883A - Baking-free brick of red mud and production method thereof - Google Patents
Baking-free brick of red mud and production method thereof Download PDFInfo
- Publication number
- CN101219883A CN101219883A CNA2008103001829A CN200810300182A CN101219883A CN 101219883 A CN101219883 A CN 101219883A CN A2008103001829 A CNA2008103001829 A CN A2008103001829A CN 200810300182 A CN200810300182 A CN 200810300182A CN 101219883 A CN101219883 A CN 101219883A
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- CN
- China
- Prior art keywords
- red mud
- brick
- baking
- radioactivity
- free brick
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/14—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing calcium sulfate cements
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00025—Aspects relating to the protection of the health, e.g. materials containing special additives to afford skin protection
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Abstract
The invention discloses a non-burnt brick of red mud, which comprises red mud, fly ash, sand stone, gypsum and lime added with barium sulfate powders. Adding the barium sulfate in the material for preparing brick of red mud can effectively reduce the radioactivity of the red mud; the non-burnt brick is prepared and obtained by natural maintenance or a steaming and pressing technology; by inspection, the radioactivity of the prepared non-burned brick of red mud does not exceed the national standard. The applicant finds out that after the barium sulfite powders are mixed with the red mud, the radioactivity of the red mud can be reduced by about 10 to 20 percent immediately; after 8 to 12 hours of sinking, the radioactivity of the red mud can be further reduced by another 20 percent; through test, the radioactivity of the prepared brick of red mud is kept between 0.4 to 0.8 percent, which is lower than the national standard.
Description
Technical field
The present invention relates to a kind of baking-free brick of red mud and making method, belong to red mud recovery and utilization technology field.
Background technology
In the prior art, waste material Zhao red mud in the alumina producing, never well utilize, though being arranged, some utilize red mud to make vitrified brick, non-burning brick technology, disclose a kind of red mud composite brick and preparation method as Chinese patent 92104133.0, but do not had good solution for the radioactivity of red mud.The red mud composite brick of gained, its radioactivity can't be controlled or reduce, if the red mud that adds is too much, the radioactivity of the red mud material that is perhaps adopted is bigger, the radioactivity that obtains red mud composite brick will surpass national standard, so result of use is not ideal enough.
Summary of the invention
The objective of the invention is to: provide a kind of and can effectively reduce radioactive baking-free brick of red mud of red mud and making method, to overcome the deficiencies in the prior art.
Baking-free brick of red mud of the present invention, it comprises that employing red mud, flyash, sandstone, gypsum and lime making are non-burning brick, adds blaue fixe in above-mentioned materials.
Above-mentioned baking-free brick of red mud, by weight, each material component is red mud 22～42, flyash 20～40, sandstone 20～30, gypsum 3～7, lime 6～10, blaue fixe 0.1～1.
Above-mentioned baking-free brick of red mud, proportioning is preferably, by weight, each material component is red mud 30～34, flyash 28～32, sandstone 24～26, gypsum 4～6, lime 7～9, blaue fixe 0.3～0.6.
Above-mentioned baking-free brick of red mud, best proportioning are that by weight, each material component is red mud 32, flyash 30, sandstone 25, gypsum 5, lime 8, blaue fixe 0.4
Baking-free brick of red mud making method of the present invention is ground above-mentioned raw materials, and after adding water and mixing, repressed moulding, maintenance obtain non-burning brick.
Above-mentioned baking-free brick of red mud making method is ground above-mentioned raw materials, and after adding water and mixing, heavyization 8～12 hours suppressed again.
Above-mentioned baking-free brick of red mud making method, after non-burning brick compression moulding, precuring 12 hours under 50 ℃ of temperature, 70% humidity was earlier pressed in the stove maintenance 8 hours in the steaming of 180 ℃ of temperature, air pressure 1.2MPa again, obtained non-burning brick.
The invention has the advantages that, in the material of making the red mud brick, add blaue fixe, can effectively reduce the radioactivity of red mud, obtain non-burning brick by natural curing or the making of steaming compression technology again, through check, the baking-free brick of red mud radioactivity of preparation can not exceed national standard.The applicant draws the best proportioning of various materials through a large amount of test, and how on the basis that reduces red mud brick cost, adds the best component of blaue fixe.The applicant finds, with blaue fixe with after red mud mixes, can reduce red mud radioactivity about 10～20% immediately, by heavyization 8～12 hours, can further reduce the radioactivity about 20% of red mud, finally prepd red mud brick, after testing, its radioactivity is lower than national standard between 0.4～0.8%.Therefore compare with prior art, the present invention has can effectively reduce advantages such as red mud brick radioactivity, preparation technology is simple, production cost is lower.
Embodiment
Embodiments of the invention 1: by weight, with red mud 22～42, flyash 20～40, sandstone 20～30, gypsum 3～7, lime 6～10, blaue fixe 0.1～1, each material grinds, add water mix after, repressed moulding, maintenance obtain non-burning brick.
Embodiments of the invention 2: by weight, with red mud 30～34, flyash 28～32, sandstone 24～26, gypsum 4～6, lime 7～9, blaue fixe 0.3～0.6, each material grinds, add water mix after, heavyization 8～12 hours, compression moulding again, maintenance obtain non-burning brick.Heavy metallization processes makes blaue fixe to reduce the radioactivity of red mud fully with the absorption of the radioactive substance in the red mud.
Embodiments of the invention 3: by weight, with red mud 32, flyash 30, sandstone 25, gypsum 5, lime 8, blaue fixe 0.4, each material grinds, add water mix after, heavyization 8～12 hours, compression moulding again, with adobe precuring 12 hours under 50 ℃ of temperature, 70% humidity earlier, pressed in the stove maintenance 8 hours in the steaming of 180 ℃ of temperature, air pressure 1.2MPa again, obtain non-burning brick.
Claims (7)
1. baking-free brick of red mud, it comprises that to adopt red mud, flyash, sandstone, gypsum and lime to make non-burning brick, it is characterized in that: add blaue fixe in above-mentioned materials.
2. baking-free brick of red mud according to claim 1 is characterized in that: by weight, each material component is red mud 22～42, flyash 20～40, sandstone 20～30, gypsum 3～7, lime 6～10, blaue fixe 0.1～1.
3. baking-free brick of red mud according to claim 2 is characterized in that: by weight, each material component is red mud 30～34, flyash 28～32, sandstone 24～26, gypsum 4～6, lime 7～9, blaue fixe 0.3～0.6.
4. baking-free brick of red mud according to claim 3 is characterized in that: by weight, each material component is red mud 32, flyash 30, sandstone 25, gypsum 5, lime 8, blaue fixe 0.4.
5. according to the described baking-free brick of red mud making method of the arbitrary claim of claim 1～4, it is characterized in that: above-mentioned raw materials is ground, and after adding water and mixing, repressed moulding, maintenance obtain non-burning brick.
6. baking-free brick of red mud making method according to claim 5 is characterized in that: above-mentioned raw materials is ground, and after adding water and mixing, heavyization 8～12 hours suppressed again.
7. baking-free brick of red mud making method according to claim 6, it is characterized in that: after non-burning brick compression moulding, precuring 12 hours under 50 ℃ of temperature, 70% humidity was earlier pressed in the stove maintenance 8 hours in the steaming of 180 ℃ of temperature, air pressure 1.2MPa again, obtained non-burning brick.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008103001829A CN101219883B (en) | 2008-01-22 | 2008-01-22 | Baking-free brick of red mud and production method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008103001829A CN101219883B (en) | 2008-01-22 | 2008-01-22 | Baking-free brick of red mud and production method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101219883A true CN101219883A (en) | 2008-07-16 |
| CN101219883B CN101219883B (en) | 2010-08-11 |
Family
ID=39630005
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008103001829A Expired - Fee Related CN101219883B (en) | 2008-01-22 | 2008-01-22 | Baking-free brick of red mud and production method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101219883B (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101525923B (en) * | 2009-04-15 | 2011-02-09 | 贵阳白云耀筑新型建筑材料厂 | Light aggregate compound heat preserving building blocks |
| CN102173858A (en) * | 2011-01-10 | 2011-09-07 | 济南大学 | Red mud foaming lightweight heat-preserving plate |
| CN102826802A (en) * | 2012-09-27 | 2012-12-19 | 遵义市贵科科技有限公司 | Red mud unfired light-weight insulating brick |
| CN110465177A (en) * | 2019-09-27 | 2019-11-19 | 国家电投集团远达环保工程有限公司重庆科技分公司 | Red mud Comprehensive utilization method |
| CN112279603A (en) * | 2020-11-10 | 2021-01-29 | 济南大学 | Red mud baking-free brick and preparation method thereof |
| CN113149525A (en) * | 2021-04-13 | 2021-07-23 | 中铝山西新材料有限公司 | Coal ash and red mud geopolymer material and preparation method thereof |
| US11111179B2 (en) | 2017-10-11 | 2021-09-07 | Katholieke Universiteit Leuven | Non-fired monoliths |
| CN113409979A (en) * | 2021-06-15 | 2021-09-17 | 中骥新材料有限公司 | Red mud radioactive shielding agent and method for shielding red mud radioactivity |
-
2008
- 2008-01-22 CN CN2008103001829A patent/CN101219883B/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101525923B (en) * | 2009-04-15 | 2011-02-09 | 贵阳白云耀筑新型建筑材料厂 | Light aggregate compound heat preserving building blocks |
| CN102173858A (en) * | 2011-01-10 | 2011-09-07 | 济南大学 | Red mud foaming lightweight heat-preserving plate |
| CN102173858B (en) * | 2011-01-10 | 2012-10-31 | 济南大学 | Red mud foaming lightweight heat-preserving plate |
| CN102826802A (en) * | 2012-09-27 | 2012-12-19 | 遵义市贵科科技有限公司 | Red mud unfired light-weight insulating brick |
| US11111179B2 (en) | 2017-10-11 | 2021-09-07 | Katholieke Universiteit Leuven | Non-fired monoliths |
| CN110465177A (en) * | 2019-09-27 | 2019-11-19 | 国家电投集团远达环保工程有限公司重庆科技分公司 | Red mud Comprehensive utilization method |
| CN110465177B (en) * | 2019-09-27 | 2021-11-09 | 国家电投集团远达环保工程有限公司重庆科技分公司 | Comprehensive utilization and treatment method for red mud |
| CN112279603A (en) * | 2020-11-10 | 2021-01-29 | 济南大学 | Red mud baking-free brick and preparation method thereof |
| CN113149525A (en) * | 2021-04-13 | 2021-07-23 | 中铝山西新材料有限公司 | Coal ash and red mud geopolymer material and preparation method thereof |
| CN113409979A (en) * | 2021-06-15 | 2021-09-17 | 中骥新材料有限公司 | Red mud radioactive shielding agent and method for shielding red mud radioactivity |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101219883B (en) | 2010-08-11 |
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Granted publication date: 20100811 Termination date: 20140122 |