CN102102418A - Steaming/firing-free wall brick prepared from oil shale waste and preparation method thereof - Google Patents
Steaming/firing-free wall brick prepared from oil shale waste and preparation method thereof Download PDFInfo
- Publication number
- CN102102418A CN102102418A CN2009102139323A CN200910213932A CN102102418A CN 102102418 A CN102102418 A CN 102102418A CN 2009102139323 A CN2009102139323 A CN 2009102139323A CN 200910213932 A CN200910213932 A CN 200910213932A CN 102102418 A CN102102418 A CN 102102418A
- Authority
- CN
- China
- Prior art keywords
- oil shale
- brick
- preparation
- wall body
- shale waste
- 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.)
- Pending
Links
- 239000004058 oil shale Substances 0.000 title claims abstract description 53
- 239000002699 waste material Substances 0.000 title claims abstract description 41
- 239000011449 brick Substances 0.000 title claims abstract description 38
- 238000002360 preparation method Methods 0.000 title claims abstract description 15
- 238000010025 steaming Methods 0.000 title 1
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims abstract description 26
- 239000002994 raw material Substances 0.000 claims abstract description 15
- 239000000292 calcium oxide Substances 0.000 claims abstract description 13
- 235000012255 calcium oxide Nutrition 0.000 claims abstract description 13
- 239000004568 cement Substances 0.000 claims abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 11
- 239000010881 fly ash Substances 0.000 claims abstract description 10
- 239000004576 sand Substances 0.000 claims abstract description 9
- 239000000463 material Substances 0.000 claims abstract description 8
- 238000001125 extrusion Methods 0.000 claims abstract description 7
- 239000002893 slag Substances 0.000 claims description 11
- 238000000465 moulding Methods 0.000 claims description 5
- 238000012423 maintenance Methods 0.000 claims description 3
- 235000019353 potassium silicate Nutrition 0.000 claims description 3
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 3
- 239000002245 particle Substances 0.000 claims 4
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 claims 1
- 230000008901 benefit Effects 0.000 abstract description 8
- 238000000034 method Methods 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 230000007613 environmental effect Effects 0.000 abstract description 4
- 238000003756 stirring Methods 0.000 abstract description 4
- 239000012190 activator Substances 0.000 abstract 1
- 238000010276 construction Methods 0.000 abstract 1
- 238000011049 filling Methods 0.000 abstract 1
- 238000002156 mixing Methods 0.000 abstract 1
- 239000012258 stirred mixture Substances 0.000 abstract 1
- 239000003795 chemical substances by application Substances 0.000 description 7
- 239000004566 building material Substances 0.000 description 6
- 238000011160 research Methods 0.000 description 6
- 239000004927 clay Substances 0.000 description 4
- 238000009825 accumulation Methods 0.000 description 3
- 239000002956 ash Substances 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 239000004567 concrete Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 235000002918 Fraxinus excelsior Nutrition 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000002932 luster Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000000197 pyrolysis Methods 0.000 description 1
- 239000003079 shale oil Substances 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
Classifications
-
- 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
- C04B28/02—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 hydraulic cements other than calcium sulfates
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention relates to wall materials used in construction industry, more particularly to an oil shale waste wall brick and a preparation method thereof. The method comprises the steps of: mixing brick-manufacturing raw materials in proper proportions required by the proportion scheme, adding the appropriate amount of water, uniformly stirring and then filling the stirred mixture in a brick-manufacturing mold, and obtaining the wall brick by extrusion forming or vibration forming and then wet curing, wherein the raw materials include the oil shale waste. In the above scheme, the raw materials of the wall brick further include fly ash, sand, cement, quicklime and activator. The wall brick has the advantages of using the waste as the valuable and environmental protection, and has prominent economical and social benefits.
Description
Technical field
The present invention relates to materials for wall used in the building trade, particularly oil shale waste wall body brick and preparation method thereof.
Background technology
Oil shale reserves is very abundant in the world, and stock number that it has been established that is 10,727 hundred million tons.The purposes of oil shale mainly is to refine shale oil or be directly used in combustion power generation by destructive distillation.But the content of ashes of oil shale can produce a large amount of lime-ash, i.e. oil shale waste greater than 40% during development and utilization.At the commitment of oil shale exploitation, owing to lack environmental consciousness and sustainable development idea, the processing mode of oil shale lime-ash is directly abandoned accumulation often, caused taking in a large number of serious ecological environmental pollution and soil.Until current, though extensive day by day both at home and abroad to the research and the application of oil shale waste, can guarantee that bigger utilization, the oil shale waste that has a better economic value added again utilize scheme actually rare.The main research and the application of oil shale waste are aspects such as metallic element extraction, waste gas and wastewater treatment, agricultural fertilizer, chemical products and constructional materials production at present.Owing to through high temperature action, after the organic oil material after-flame volatilization wherein, stay a large amount of micropores when oil shale waste forms, internal surface area significantly increases, active higher, can be used to produce building material products such as cement, wall body brick, concrete light aggregate, have good economic value added; Because building material industry is bigger to the use amount of oil shale waste, can solve the accumulation problem of oil shale waste effectively, simultaneously for the oil shale industrial expansion is removed the obstacles.Therefore, oil shale waste is the main direction of oil shale waste research and application in the research and the application of building material industry.At present, utilize oil shale waste to produce building material product and mainly contain (1) as the cement doping material." utilize oil shale waste and combustible gas to generate electricity and produce the method for clinker " (application number: 200710012507.9) etc. of the patent of this respect main relevant model, Xin Fuge; (2) be used to produce haydite.The patent of this respect mainly contains the Guo Li's of China University of Geosciences etc. " with haydite of oil shale waste preparation and preparation method thereof " (application number: 200610019341.9) etc.; (3) be used to produce light-weight brick.The rarely seen Jilin Province Building Materials Industry Design and Research Institute of this respect is main raw material(s) with the oil shale waste, produces and steam the report of pressing the oil shale slag brick, do not see related application.As seen, utilize oil shale waste manufacturing building material product to still need and strengthen research energetically.
Summary of the invention
Purpose of the present invention
The purpose of this invention is to provide a kind of non-autoclaved and unburned wall body brick with oil shale waste preparation and preparation method thereof.On the one hand, the oil shale slag brick that makes can replace solid clay brick fully, can save the clay resource that the mankind depend on for existence, protects farmland; On the other hand, realize twice laid, turned waste into wealth, not only alleviated the pressure of environmental protection aspect, helped human kind sustainable development again, had tangible economic benefit and social benefit.
Technical solution of the present invention
The technical solution adopted in the present invention is: with the wall body brick of oil shale waste preparation, it by match ratio scheme batching, adds suitable quantity of water with raw material, inserts brick-making mould after stirring, and wet curing is made after extrusion modling or vibration moulding, raw material packet oil scraper shale slag.In the such scheme, also comprise flyash, sand, cement, quicklime and exciting agent in its raw material.The percentage by weight of each component is in the raw material:
Oil shale waste 30.0 ~ 45.0%, flyash 5.0 ~ 10.0%, sand 18.0 ~ 30.0%, cement 20.0 ~ 35.0%, quicklime 2.0 ~ 8.0%, exciting agent 0.5 ~ 1.2%, the weight ratio (ratio of water to material) of water and other raw material gross weights is 0.18 ~ 0.25.
The described exciting agent of such scheme is a water glass.
The present invention with the method step that oil shale waste prepares non-autoclaved and unburned wall body brick is: (1) is with oil shale waste, quicklime porphyrize homogenizing; (2) weigh batching; (3) adding water is stirred to evenly; (4) insert brick-making mould pressurization extrusion modling or vibration moulding; (5) demoulding maintenance.
Technique effect:
The wall body brick structured size that the present invention makes, corner angle are clearly demarcated, the surfacing flawless, and the color and luster light gray is with dark yellow slightly, and the closely knit exquisiteness of outward appearance, every performance indications reach the standard of 15 grades of fly ash brick MU15 and Autoclaved limesand bricks.
The advantage of the inventive method is:
1, utilize oil shale waste to prepare non-autoclaved and unburned wall body brick, product has added value preferably.
2, because the chemical composition of oil shale waste mainly contains SiO
2, Al
2O
3, Fe
2O
3, CaO, MgO etc., its chemical composition and content and clay are close.Therefore, the oil shale waste instead of clay is as the raw materials for production of wall body brick, and is not only sharp useless, and joint soil.
3, owing to adopt the method for extrusion modling to make the oil shale slag brick, do not need high temperature sintering, and need not adopt the steam press maintenance method, save the energy.
4, utilize oil shale waste to prepare wall body brick, can use oil shale waste in a large number, effectively solve the accumulation problem of oil shale waste, have huge social benefit and environmental benefit.
5, the energy-conservation profit of oil shale slag brick is useless, and " turning waste into wealth " is with low cost, and to compare economic indicator good with other materials for walls (as various concrete blocks, Autoclaved limesand brick etc.), has good economic benefit.
The specific embodiment
Embodiment 1:
Present embodiment realizes by following steps: after oil shale waste, the levigate homogenizing of quicklime, press its percentage by weight respectively with flyash, sand, cement and exciting agent:
Oil shale waste: flyash: sand: cement: quicklime: exciting agent=44.3: 6.5: 24.1: 21.0: 3.3: 0.8,
Give computation weigh, add suitable quantity of water, insert brick-making mould after stirring, through the extruding aftershaping (briquetting pressure: 5.0MPa), after make the oil shale slag brick after the natural curing (curing time: 28 days).The every performance indications of oil shale slag brick by above-mentioned prescription and explained hereafter see Table 1.
Embodiment 2:
Present embodiment realizes by following steps: after oil shale waste, the levigate homogenizing of quicklime, press its percentage by weight respectively with flyash, sand, cement and exciting agent:
Oil shale waste: flyash: sand: cement: quicklime: exciting agent=42.2: 5.6: 20.6: 28.0: 2.8: 0.8,
Give computation weigh, add suitable quantity of water, insert brick-making mould after stirring, through the extruding aftershaping (briquetting pressure: 5.0MPa), after make the oil shale slag brick after the natural curing (curing time: 28 days).The every performance indications of oil shale slag brick by above-mentioned prescription and explained hereafter see Table 1.
The oil shale slag brick service check result of the different embodiment of table 1
Claims (7)
1. wall body brick with oil shale waste preparation, it is characterized by: it makes raw material packet oil scraper shale slag by raw material through extruding or vibration.
2. wall body brick as claimed in claim 1 is characterized by: also comprise flyash, sand, cement, quicklime, water glass and water in its raw material, the percentage by weight of each component is in the raw material:
Oil shale waste 30.0~45.0%, flyash 5.0~10.0%, sand 18.0~30.0%, cement 20.0~35.0%, quicklime 2.0~8.0%, water glass 0.5~1.2%, the weight ratio (ratio of water to material) of water and other raw material gross weights is 0.18~0.25.
3. wall body brick as claimed in claim 1, it is characterized by: preparation process is non-autoclaved and unburned, extruding or vibration moulding after natural curing form.
4. wall body brick as claimed in claim 1, its preparation methods steps is:
(1) with oil shale waste, quicklime porphyrize homogenizing;
(2) weigh batching;
(3) adding water is stirred to evenly;
(4) insert brick-making mould pressurization extrusion modling or vibration moulding;
(5) demoulding maintenance.
5. wall body brick preparation method as claimed in claim 4 is characterized by: oil shale waste is behind porphyrize, and particle diameter accounts for the ratio of gross weight greater than 65% less than the particle weight of 0.16mm; Quicklime is behind porphyrize, and particle diameter accounts for the ratio of gross weight greater than 70% less than the particle weight of 0.05mm.
6. wall body brick preparation method as claimed in claim 4 is characterized by: during extrusion modling, extrusion stress is 3.5~5.5MPa; During vibration moulding, vibration frequency is greater than 2500 times/minute.
7. wall body brick preparation method as claimed in claim 4 is characterized by: after brick is made, be not less than at temperature under 10 ℃ the condition, keep brick moistening, carry out natural curing.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN2009102139323A CN102102418A (en) | 2009-12-17 | 2009-12-17 | Steaming/firing-free wall brick prepared from oil shale waste and preparation method thereof |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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CN2009102139323A CN102102418A (en) | 2009-12-17 | 2009-12-17 | Steaming/firing-free wall brick prepared from oil shale waste and preparation method thereof |
Publications (1)
Publication Number | Publication Date |
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CN102102418A true CN102102418A (en) | 2011-06-22 |
Family
ID=44155457
Family Applications (1)
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CN2009102139323A Pending CN102102418A (en) | 2009-12-17 | 2009-12-17 | Steaming/firing-free wall brick prepared from oil shale waste and preparation method thereof |
Country Status (1)
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CN (1) | CN102102418A (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102877553A (en) * | 2012-10-17 | 2013-01-16 | 肖和平 | Energy storage thermal insulation building material |
CN105315003A (en) * | 2015-12-07 | 2016-02-10 | 海阳市安隆新型建材有限公司 | Thermal-insulating building block and preparation method thereof |
CN105669166A (en) * | 2016-01-15 | 2016-06-15 | 陕西省能源化工研究院 | Lightweight ceramisite prepared from fly ash and preparation method thereof |
CN105731998A (en) * | 2016-01-15 | 2016-07-06 | 陕西省能源化工研究院 | Light ceramsite prepared from oil shale semi-coke and preparation method thereof |
CN111320435A (en) * | 2020-03-13 | 2020-06-23 | 广州大学 | Design method of oil shale slag concrete mixing proportion |
CN114804775A (en) * | 2022-05-18 | 2022-07-29 | 广州大学 | Preparation method of oil shale slag recycled concrete building block |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1064067A (en) * | 1992-01-23 | 1992-09-02 | 抚顺矿务局胜利矿 | Technology for making burn-free bricks with ash dregs after burning oil shale |
CN1073930A (en) * | 1992-05-24 | 1993-07-07 | 俞树声 | Hollow brick made of coal cinder and cement |
CN1381655A (en) * | 2002-05-17 | 2002-11-27 | 华南理工大学 | Technology for making lime-sand brick cured by steam |
CN1456424A (en) * | 2003-04-14 | 2003-11-19 | 刘宏 | Concrete building block preparing method |
CN1872782A (en) * | 2006-06-13 | 2006-12-06 | 中国地质大学(武汉) | Haydite prepared from dregs of oil shale, and preparation method |
JP2007008733A (en) * | 2005-06-28 | 2007-01-18 | Eg Corporation:Kk | Moisture and water control concrete products with adjustable water and water permeability |
CN101143765A (en) * | 2007-08-20 | 2008-03-19 | 关范 | Method for generating power and producing cement clinker from oil shale slag and combustible gas |
CN101143766A (en) * | 2007-08-27 | 2008-03-19 | 吉林大学 | Oil Shale Porous Thermal Insulation Building Material |
CN101200358A (en) * | 2007-12-12 | 2008-06-18 | 吉林大学 | Oil shale ash artificial synthetic marble and preparation method thereof |
-
2009
- 2009-12-17 CN CN2009102139323A patent/CN102102418A/en active Pending
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1064067A (en) * | 1992-01-23 | 1992-09-02 | 抚顺矿务局胜利矿 | Technology for making burn-free bricks with ash dregs after burning oil shale |
CN1073930A (en) * | 1992-05-24 | 1993-07-07 | 俞树声 | Hollow brick made of coal cinder and cement |
CN1381655A (en) * | 2002-05-17 | 2002-11-27 | 华南理工大学 | Technology for making lime-sand brick cured by steam |
CN1456424A (en) * | 2003-04-14 | 2003-11-19 | 刘宏 | Concrete building block preparing method |
JP2007008733A (en) * | 2005-06-28 | 2007-01-18 | Eg Corporation:Kk | Moisture and water control concrete products with adjustable water and water permeability |
CN1872782A (en) * | 2006-06-13 | 2006-12-06 | 中国地质大学(武汉) | Haydite prepared from dregs of oil shale, and preparation method |
CN101143765A (en) * | 2007-08-20 | 2008-03-19 | 关范 | Method for generating power and producing cement clinker from oil shale slag and combustible gas |
CN101143766A (en) * | 2007-08-27 | 2008-03-19 | 吉林大学 | Oil Shale Porous Thermal Insulation Building Material |
CN101200358A (en) * | 2007-12-12 | 2008-06-18 | 吉林大学 | Oil shale ash artificial synthetic marble and preparation method thereof |
Non-Patent Citations (1)
Title |
---|
李胜强等: "油母页岩渣在我国建材行业的研究与应用", 《建筑科学》 * |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102877553A (en) * | 2012-10-17 | 2013-01-16 | 肖和平 | Energy storage thermal insulation building material |
CN102877553B (en) * | 2012-10-17 | 2014-05-07 | 肖和平 | Energy storage thermal insulation building material |
CN105315003A (en) * | 2015-12-07 | 2016-02-10 | 海阳市安隆新型建材有限公司 | Thermal-insulating building block and preparation method thereof |
CN105669166A (en) * | 2016-01-15 | 2016-06-15 | 陕西省能源化工研究院 | Lightweight ceramisite prepared from fly ash and preparation method thereof |
CN105731998A (en) * | 2016-01-15 | 2016-07-06 | 陕西省能源化工研究院 | Light ceramsite prepared from oil shale semi-coke and preparation method thereof |
CN105669166B (en) * | 2016-01-15 | 2018-07-06 | 陕西省能源化工研究院 | A kind of light ceramic standby using coal ash for manufacturing and preparation method thereof |
CN111320435A (en) * | 2020-03-13 | 2020-06-23 | 广州大学 | Design method of oil shale slag concrete mixing proportion |
CN114804775A (en) * | 2022-05-18 | 2022-07-29 | 广州大学 | Preparation method of oil shale slag recycled concrete building block |
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Application publication date: 20110622 |