CN104817313A - Iron ore tailing powder sintered permeable square brick and preparation method thereof - Google Patents
Iron ore tailing powder sintered permeable square brick and preparation method thereof Download PDFInfo
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- CN104817313A CN104817313A CN201510180866.XA CN201510180866A CN104817313A CN 104817313 A CN104817313 A CN 104817313A CN 201510180866 A CN201510180866 A CN 201510180866A CN 104817313 A CN104817313 A CN 104817313A
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/60—Production of ceramic materials or ceramic elements, e.g. substitution of clay or shale by alternative raw materials, e.g. ashes
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Abstract
The invention discloses an iron ore tailing powder sintered permeable square brick and a preparation method thereof, and belongs to the field of comprehensive utilization of iron ore tailing resources and building materials. According to the method, 50-70% of iron ore tailing powder, 30-50% of network materials and 2-6% of additives are mixed, added with water and uniformly stirred to obtain mixture containing 7-9wt% of water, the mixture is aged for 48h at room temperature, the aged mixture is formed by pressing at 100-160T, the formed product is dried for 6-8h at the temperature of 120-180 DEG C, fed into a kiln, preheated for 7-10h, sintered for 1-2h at the temperature of 1100 DEG C, insulated for 1h at the temperature of 1080-1100 DEG C and cooled for 9-11h to obtain the iron ore tailing powder sintered permeable square brick, and the percent is weight percent. According to the invention, sintered permeable square brick is prepared from iron ore tailing powder by sintering, the resources are saved, tailings are comprehensively utilized, energy is saved, environments are saved, and iron ore tailing powder is a rejected material, is low in cost and can be widely used for various building materials.
Description
Technical field
The invention belongs to iron tailings comprehensive utilization of resources and building material field, particularly a kind of iron ore powdered tailings is around permeable paving tile of knot and preparation method thereof.
Background technology
For a long time, common brick factory in all parts of the country cuts the earth and ruins field and cause and plough destroyed in a large number, and from last century the nineties, country just pays much attention to this problem and put into effect that a series of limit is sticky prohibits real policy, forbid strictly to fetch earth from arable land, encourage and reward to produce vitrified brick with various slag.Existing refractory brick production technology adopts the refractory materialss such as bauxitic clay, kaolin, flint clay, dry powder compression moulding is pulverized in processing, through more than 1000 degree high-temperature firings, and the unit of iron ore powdered tailings have with the elemental silicon of bauxitic clay, kaolin, flint clay containing identical in a large number.Refractory brick bauxitic clay used, kaolin, flint clay are rare mineral product, so the product cost of making is very high, utilize in high temperature resistant building only, can not utilize and use with common building, can not be used for large-area popularization and use.
" a kind of method utilizing iron tailings to prepare environment protection type water permeable brick " is basic aggregate with iron tailings, introduces a certain amount of waste broken glass bits, has prepared the environment protection type water permeable brick of excellent performance; The water-permeable brick ultimate compression strength of preparation is high, and wear resistance is good, excellent water permeability, but cost is very high." production technique of face brick with tailings of iron ore " utilizes iron ore Total tailing or in mine tailing, adds other mineral a certain amount of, mix and stir through adding water, compression moulding, can obtain after high-temperature roasting that intensity is high, smooth surface, leakless, excellent durability, good decorating effect, the interior/exterior decoration face brick of will never fade all size and external form and floor tile, but cost of manufacture is very high.
Summary of the invention
The object of the invention is to overcome the shortcoming that exists in prior art with not enough, provide a kind of iron ore powdered tailings around the preparation method of the permeable paving tile of knot.
Another object of the present invention is to provide the iron ore powdered tailings obtained by above-mentioned preparation method around the permeable paving tile of knot.
Object of the present invention is achieved through the following technical solutions: a kind of iron ore powdered tailings is around the preparation method of the permeable paving tile of knot, 50-70% iron ore powdered tailings, 30-50% network material and 2-6% additive is comprised the steps: to mix, add water and stir, obtain the mixture of moisture 7-9wt%, after room temperature Chenization≤48h, through 100-160T compression moulding, through 6-8h, 120-180 DEG C of drying, enter kiln, through 7-10h preheating, in 1080-1100 DEG C of insulation 1h, cooling 9-11h after 1100 DEG C of sintering 1-2h, obtain iron ore powdered tailings around the permeable paving tile of knot; Described per-cent is mass percent;
Described iron ore powdered tailings is preferably moisture 6-10wt%, fineness 10-20 object iron ore powdered tailings.
Described network material is preferably 30-60 object aluminium matter leaf rock.
Described additive is preferably ferric oxide, manganese oxide or cupric oxide.
Preferably, the mass percent of described ferric oxide is 3-6%;
Preferably, the mass percent of described manganese oxide is 2-5%.
A kind of iron ore powdered tailings, around the permeable paving tile of knot, is obtained by above-mentioned preparation method.
The present invention has following advantage and effect relative to prior art:
(1) the main silicon content of iron ore powdered tailings is large, the little no adhesion of loss on ignition, 1050-1100 DEG C of expansion.1050-1150 DEG C, aluminium matter shale receipts are large.The present invention is little with the product contraction ratio of the mine tailing sintering of the aluminium matter shale of the different fineness of 30-50% mixing parcel 50-70%, good stability.The resistance to Mo of the permeable paving tile of iron ore mine powder sintering of preparation is strong, has energy saving, the feature of environmental protection, water-permeable, fire line, intensity high.The permeable paving tile of iron ore mine powder sintering is the desirable substitute products replacing clay brick, concrete brick, is conducive to protecting farmland, the energy-conservation energy, protection of the environment, the important measures of the Implement of sustainable development strategy.
(2) utilize iron ore tail powder system around the permeable paving tile of knot, to economize on resources, comprehensive utilization of tailing, energy-saving and environmental protection; Iron ore powdered tailings is rejected material, and cost is low, can extensively use in order to multiple building materials with the product cost made by it is low.
Embodiment
Below in conjunction with embodiment, the present invention is described in further detail, but embodiments of the present invention are not limited thereto.
Embodiment 1
A kind of iron ore powdered tailings is around the preparation method of the permeable paving tile of knot, comprise the steps: 50% iron ore powdered tailings, 48% network material and 2% manganese oxide to mix, add water and stir, obtain the mixture of moisture 7wt%, after room temperature ageing 48h, through 100T compression moulding, through 6h, 120 DEG C of dryings, enter kiln, through 7h preheating, in 1080 DEG C of insulation 1h, cooling 9h after 1100 DEG C of sintering 1h, obtain iron ore powdered tailings around the permeable paving tile of knot; Described per-cent is mass percent;
Described iron ore powdered tailings is moisture 6wt%, fineness 10-20 object iron ore powdered tailings.
Described network material is 30-60 object aluminium matter leaf rock.
The iron ore powdered tailings obtained is around the intensity height >40mpa of the permeable paving tile of knot, and anti-skidding good >75BpN, wear resistance reaches 32.9mm, the strong >75ml/min of seepage force.
Embodiment 2
A kind of iron ore powdered tailings is around the preparation method of the permeable paving tile of knot, comprise the steps: 64% iron ore powdered tailings, 30% network material and 6% ferric oxide to mix, add water and stir, obtain the mixture of moisture 9wt%, after room temperature ageing 68h, through 160T compression moulding, through 8h, 180 DEG C of dryings, enter kiln, through 8h preheating, in 1090 DEG C of insulation 1h, cooling 10h after 1100 DEG C of sintering 1.5h, obtain iron ore powdered tailings around the permeable paving tile of knot; Described per-cent is mass percent;
Described iron ore powdered tailings is moisture 10wt%, fineness 10-20 object iron ore powdered tailings.
Described network material is 30-60 object aluminium matter leaf rock.
The iron ore powdered tailings obtained is around the intensity height >40mpa of the permeable paving tile of knot, and anti-skidding good >75BpN, wear resistance reaches 32.9mm, the strong >75ml/min of seepage force.
Embodiment 3
A kind of iron ore powdered tailings is around the preparation method of the permeable paving tile of knot, comprise the steps: 57% iron ore powdered tailings, 40% network material and 3% ferric oxide to mix, add water and stir, obtain the mixture of moisture 8wt%, after room temperature ageing 58h, through 120T compression moulding, through 7h, 150 DEG C of dryings, enter kiln, through 10h preheating, in 1100 DEG C of insulation 1h, cooling 11h after 1100 DEG C of sintering 2h, obtain iron ore powdered tailings around the permeable paving tile of knot; Described per-cent is mass percent;
Described iron ore powdered tailings is moisture 8wt%, fineness 10-20 object iron ore powdered tailings.
Described network material is 30-60 object aluminium matter leaf rock.
The iron ore powdered tailings obtained is around the intensity height >40mpa of the permeable paving tile of knot, and anti-skidding good >75BpN, wear resistance reaches 32.9mm, the strong >75ml/min of seepage force.
Above-described embodiment is the present invention's preferably embodiment; but embodiments of the present invention are not restricted to the described embodiments; change, the modification done under other any does not deviate from spirit of the present invention and principle, substitute, combine, simplify; all should be the substitute mode of equivalence, be included within protection scope of the present invention.
Claims (7)
1. an iron ore powdered tailings is around the preparation method tying permeable paving tile, it is characterized in that, 50-70% iron ore powdered tailings, 30-50% network material and 2-6% additive is comprised the steps: to mix, add water and stir, obtain the mixture of moisture 7-9wt%, after room temperature Chenization≤48h, through 100-160T compression moulding, through 6-8h, 120-180 DEG C of drying, enter kiln, through 7-10h preheating, in 1080-1100 DEG C of insulation 1h after 1100 DEG C of sintering 1-2h, cooling 9-11h, obtains iron ore powdered tailings around the permeable paving tile of knot; Described per-cent is mass percent.
2. iron ore powdered tailings according to claim 1 is around the preparation method of the permeable paving tile of knot, and it is characterized in that, described iron ore powdered tailings is moisture 6-10wt%, fineness 10-20 object iron ore powdered tailings.
3. iron ore powdered tailings according to claim 1 is around the preparation method of the permeable paving tile of knot, and it is characterized in that, described network material is 30-60 object aluminium matter leaf rock.
4. iron ore powdered tailings according to claim 1 is around the preparation method of the permeable paving tile of knot, and it is characterized in that, described additive is ferric oxide, manganese oxide or cupric oxide.
5. iron ore powdered tailings according to claim 4 is around the preparation method of the permeable paving tile of knot, and it is characterized in that, the mass percent of described ferric oxide is 3-6%.
6. iron ore powdered tailings according to claim 4 is around the preparation method of the permeable paving tile of knot, and it is characterized in that, the mass percent of described manganese oxide is 2-5%.
7. iron ore powdered tailings is around the permeable paving tile of knot, is obtained by the preparation method described in any one of claim 1-6.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510180866.XA CN104817313A (en) | 2015-04-16 | 2015-04-16 | Iron ore tailing powder sintered permeable square brick and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510180866.XA CN104817313A (en) | 2015-04-16 | 2015-04-16 | Iron ore tailing powder sintered permeable square brick and preparation method thereof |
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| CN104817313A true CN104817313A (en) | 2015-08-05 |
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| CN201510180866.XA Pending CN104817313A (en) | 2015-04-16 | 2015-04-16 | Iron ore tailing powder sintered permeable square brick and preparation method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106242609A (en) * | 2016-08-11 | 2016-12-21 | 淄博超威新材料科技有限公司 | A kind of preparation method of mine tailing flint clay water-permeable brick |
| CN110540407A (en) * | 2019-09-20 | 2019-12-06 | 鞍钢集团矿业有限公司 | porous water permeable brick fired by carbonate-containing iron tailings and firing method thereof |
| CN117285331A (en) * | 2023-11-22 | 2023-12-26 | 秦皇岛创亿建材有限公司 | High-strength high-water-permeability water permeable brick and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102815923A (en) * | 2012-08-14 | 2012-12-12 | 中国地质大学（北京） | Method for preparing decorative sintered brick by using tailings |
| CN103204698A (en) * | 2013-04-16 | 2013-07-17 | 北京科技大学 | Method for preparing environment-friendly water permeable bricks by using iron tailings |
| CN103755379A (en) * | 2014-01-17 | 2014-04-30 | 合肥工业大学 | Method of preparing foamed air brick by taking iron tailings as main material |
-
2015
- 2015-04-16 CN CN201510180866.XA patent/CN104817313A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102815923A (en) * | 2012-08-14 | 2012-12-12 | 中国地质大学（北京） | Method for preparing decorative sintered brick by using tailings |
| CN103204698A (en) * | 2013-04-16 | 2013-07-17 | 北京科技大学 | Method for preparing environment-friendly water permeable bricks by using iron tailings |
| CN103755379A (en) * | 2014-01-17 | 2014-04-30 | 合肥工业大学 | Method of preparing foamed air brick by taking iron tailings as main material |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106242609A (en) * | 2016-08-11 | 2016-12-21 | 淄博超威新材料科技有限公司 | A kind of preparation method of mine tailing flint clay water-permeable brick |
| CN110540407A (en) * | 2019-09-20 | 2019-12-06 | 鞍钢集团矿业有限公司 | porous water permeable brick fired by carbonate-containing iron tailings and firing method thereof |
| CN110540407B (en) * | 2019-09-20 | 2022-04-15 | 鞍钢集团矿业有限公司 | Porous water permeable brick fired by carbonate-containing iron tailings and firing method thereof |
| CN117285331A (en) * | 2023-11-22 | 2023-12-26 | 秦皇岛创亿建材有限公司 | High-strength high-water-permeability water permeable brick and preparation method thereof |
| CN117285331B (en) * | 2023-11-22 | 2024-01-23 | 秦皇岛创亿建材有限公司 | High-strength high-water-permeability water permeable brick and preparation method thereof |
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Application publication date: 20150805 |