CN85109663A - The making decorative face brick from tailings of iron ore - Google Patents
The making decorative face brick from tailings of iron ore Download PDFInfo
- Publication number
- CN85109663A CN85109663A CN85109663.8A CN85109663A CN85109663A CN 85109663 A CN85109663 A CN 85109663A CN 85109663 A CN85109663 A CN 85109663A CN 85109663 A CN85109663 A CN 85109663A
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- CN
- China
- Prior art keywords
- brick
- iron ore
- tailings
- lime
- compound
- 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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- 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 making decorative face brick from tailings of iron ore.A kind of novel silicate product and technology thereof.
Utilize iron ore tailings to make material, lime (or cement) and make the tapestry brick that calcareous material is produced, adopt twice rolling, mix clear up, measures such as compression moulding, control moulding water ratio and xeothermic precuring, do not need roasting, need not steam pressure, can make not breathing, loose, intensity is high, contraction is little, flawless, smooth surface, good decorating effect, face brick that weather resistance is good, but place of ceramic tiles, marble, vitrified brick are made indoor and outdoor and are decorated usefulness, for building materials department has increased the build a wall new variety of brick and tapestry brick of silicate.
Description
A kind of novel silicate product and technology thereof.
The present invention is used to make tapestry brick with a kind of depleted iron ore tailings.Iron ore tailings is the waste material that mining industry is got rid of in ore dressing process, becomes muddy, generally all is thrown into tailing dam, and dry back becomes fine powder, and the particle diameter major part is all less than 0.16 millimeter.Long-term next, these thin mine tailings are failed to handle always and are used, contaminate environment, and country is annual need a large amount of expense of raftinging of expenditure.
General silicate concrete goods are that material and calcareous material (or adding gypsum again) press (or steam-cured) to get through levigate, stirring, moulding, steaming, and grey article then must steam presses, otherwise intensity and weather resistance are all defective.
By analysis, contain a certain amount of silicon-dioxide (Sio in the iron tailings
2), be well known that, as add an amount of calcareous material, gypsum etc. and might make silicate building products.Abroad have and utilize the raw material of iron tailings powder as Cement industry, substitute for clay is joined baking cement clinker, once had unit to utilize the iron tailings powder to mix an amount of flyash, lime, the gypsum development brick of building a wall for building in domestic 1972, but iron tailings powder volume can not surpass 70%, and only limit to testing laboratory's examination and join.
Task of the present invention is similar to the Dinas brickes of producing both at home and abroad at present, as siliceous material, mixes an amount of calcareous material (lime or cement) with the iron tailings powder, adopts steam-cured means, makes silicate product.This kind of iron ore tailings usage belongs to initiative at home and abroad.This achievement in research has following characteristics.
Strict a series of technological process of control and technological factor, to overcome the weakness in the silicate concrete making, reach not breathing, loose, intensity is high, contraction is little, flawless, smooth surface, good decorating effect, the face brick that weather resistance is good, the major control link is that moulding water ratio and xeothermic precuring technology are cleared up, limited in twice rolling, mixing, and whole process flow is:
The about 1 minute → compound of iron tailings powder+unslaked lime → mixing rolling is cleared up (25～60 ℃ of temperature, the time was greater than 4 hours) → 5 minutes → compression moulding of secondary rolling (compound water ratio 14%, forming pressure 200 kilograms per centimeter
2) → xeothermic precuring (temperature 30-50 ℃, about 24 hours) → vapor cure (temperature 95-100 ℃) → finished product.
Be main raw material with the iron tailings powder in the batching, account for 80～95%, lime intermingled quantity be in 5～20%(lime the content of free calcium oxide greater than 60%), can adding coal ash and gypsum.Iron tailings powder face brick mainly adopts atmospheric steam curing, and equipment is simple on producing like this, and investment is saved, last detective.
Iron ore tailings this as brown powder, can be pressed into the brick of building a wall, floor tile, and the indoor and outdoor tapestry brick of all size and external form.The building block of producing for filbert, has certain decorative effect under the condition that does not add any pigment, color is even, and colour-fast, and weather resistance is good, is suitable for building by laying bricks or stones dry wall.As calcareous material, then effect is better to adopt silicate cement (volume is 10-15%), can further simplify technology, remove lime grinding and compound from and clear up two procedures, and the moulding water content is 8%.The tapestry brick of producing, bright in luster, and avoided surperficial whiting, and be more suitable for doing brick pasted outside wall, also can do the chromatic unsaturated polyester resin of skim on the surface of making brick, produce the artificial marble of various colors and decorative pattern, make indoor facing.
Utilize iron ore tailings to produce the tapestry brick and the brick of building a wall, not only can reduce the volume of cargo in storage and the overhead charges of tailing dam, and raw material not needing special processing (as fragmentation, grinding, screening etc.), is ready-made cheap material.Its application had both improved environmental pollution, and for building materials department has increased the build a wall new variety of brick and tapestry brick of silicate, adobe does not need roasting, has so both reduced cost, saved the energy again again.But iron ore tail tapestry brick place of ceramic tiles, marble, vitrified brick are made indoor and outdoor tapestry brick usefulness, compare with existing decorative block, and price can reduce by 1/3 at least.
Claims (7)
1, the making decorative face brick from tailings of iron ore.A kind of novel silicate product and technology thereof.Utilize the silicon-dioxide (SiO that contains in the iron ore tailings
2) make it to react to produce the silicate tapestry brick with calcareous material (lime or cement).Characteristics of the present invention are that iron ore tailings accounts for 80～95% in the batching, and lime 5～20%, compound adopt rolling twice, control compound digestion condition and time, limit the compression moulding water ratio, take suitable measures such as xeothermic precuring temperature and time.
2, technology according to claim 1, the mine tailing that it is characterized in that iron ore and the compound of unslaked lime mix clear up before and after each rolling once, rolling was cleared up the back rolling 5 minutes, to reach material thorough mixing, even compact about 1 minute before clearing up.
3, technology according to claim 2 is characterized in that the compound digestion condition need be controlled at 25～60 ℃, and digestion time was greater than 4 hours.
4, technology according to claim 3, when it is characterized in that compression moulding, the compound water ratio is 14%, forming pressure is 200 kilograms per centimeter
2
5, technology according to claim 4 is characterized in that steam-cured preceding the need through about 24 hours, and temperature is 40 ℃ xeothermic precuring.
6, technology according to claim 5 is characterized in that then can further simplifying technology as adopting the silicate cement replacing lime as calcareous material, removes lime grinding and compound from and clears up operation.
7, tapestry brick according to claim 1 can be done the chromatic unsaturated polyester resin of skim on the surface of making brick, produce the artificial marble of various colors and decorative pattern.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN85109663A CN1010230B (en) | 1985-12-11 | 1985-12-11 | Making decorative face brick from tailings of iron ore |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN85109663A CN1010230B (en) | 1985-12-11 | 1985-12-11 | Making decorative face brick from tailings of iron ore |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN85109663A true CN85109663A (en) | 1987-06-24 |
| CN1010230B CN1010230B (en) | 1990-10-31 |
Family
ID=4796423
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN85109663A Expired CN1010230B (en) | 1985-12-11 | 1985-12-11 | Making decorative face brick from tailings of iron ore |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1010230B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103449768A (en) * | 2013-07-31 | 2013-12-18 | 潘逸东 | Aerated brick containing waste residues |
| CN106564115A (en) * | 2016-07-28 | 2017-04-19 | 王正作 | Method for pressing coal ash brick bases |
| CN110482979A (en) * | 2019-09-16 | 2019-11-22 | 陕西理工大学 | The method that vanadium titano-magnetite tailing prepares unburned pavement brick |
-
1985
- 1985-12-11 CN CN85109663A patent/CN1010230B/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103449768A (en) * | 2013-07-31 | 2013-12-18 | 潘逸东 | Aerated brick containing waste residues |
| CN106564115A (en) * | 2016-07-28 | 2017-04-19 | 王正作 | Method for pressing coal ash brick bases |
| CN106564115B (en) * | 2016-07-28 | 2018-12-18 | 王菲 | A kind of drawing method of flyash brick green body |
| CN110482979A (en) * | 2019-09-16 | 2019-11-22 | 陕西理工大学 | The method that vanadium titano-magnetite tailing prepares unburned pavement brick |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1010230B (en) | 1990-10-31 |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C13 | Decision | ||
| C14 | Grant of patent or utility model | ||
| C19 | Lapse of patent right due to non-payment of the annual fee |