CN101684680A - Iron tailing sintered porous heat insulation board - Google Patents
Iron tailing sintered porous heat insulation board Download PDFInfo
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- CN101684680A CN101684680A CN200910023626A CN200910023626A CN101684680A CN 101684680 A CN101684680 A CN 101684680A CN 200910023626 A CN200910023626 A CN 200910023626A CN 200910023626 A CN200910023626 A CN 200910023626A CN 101684680 A CN101684680 A CN 101684680A
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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 provides an iron tailing sintered porous heat insulation board, which is composed of the following raw materials in percentage by mass: 10 to 40 percent of iron tailing, 40 to 70 percentof shale, 3 to 15 percent of toughening agent, 6 to 20 percent of cosolvent and 1 to 10 percent of foaming agent; the toughening agent is white mica, silicon carbide or fluorite; the cosolvent is borax, potash feldspar, albite or lead oxide; and the foaming agent is a mixture of 1 to 10 percent of sodium carbonate powder, 1 to 30 percent of silicon carbide powder, 8 to 30 percent of iron powder and 30 to 90 percent of calcium phosphate powder in percentage by mass. The iron tailing sintered porous heat insulation board utilizes a large amount of iron tailings with the maximal doping level of40 percent, saves the energy and is favorable for environmental protection; the volume and density of the board and the size and distribution of air holes can be controlled through the addition amountof the foaming agent and the sintering procedure; and the board has the advantages of uniformly distributed air holes, high strength and good product heat insulation property.
Description
Technical field
The invention belongs to solid waste and utilize technical field, relate to a kind of porous heat insulation board, be specifically related to a kind of iron tailing sintered porous heat insulation board.
Background technology
By 2005, national building storage 40,000,000,000 m
2, according to the medium-term and long-term development plan of 2006-2020, during this with newly-built 30,000,000,000 m
2All kinds of buildings are built 2,000,000,000 m every year on average
2, and the materials for wall demand is huge, reaches 8,000 hundred million (amounting to common brick).In recent years, for protecting farmland, protect environment, energy conservation, country has put into effect relevant policies, will progressively ban use of conventional clay sintering walling; And in ore dressing field, the rejects amount of discharging has reached 50～6,000,000,000 t, and annual speed increment with 3～400,000,000 t, the disposal of these solid waste has become the heavy burden of many barghs, in case it is mishandling, not only can cause engineering project disaster aggravation, the wasting of resources, environment pollution, cause serious harm can for simultaneously society, economy, environment; The volume of cargo in storage of iron tailings is maximum, accounts for nearly 1/3 of whole tailings pile storages.Country actively advocates and develops a circular economy and conservation-minded society at present, so utilize a kind of novel light sheet material of iron tailings developmental research, is significant for the innovation that promotes China's materials for wall and the comprehensive utilization of mine tailing.
Development through materials for wall over nearly 20 years, the road of many kinds, multi-functional development has been gone in the materials for wall industry of China, begun to take shape walling system based on brick, piece, plate, as concrete hollow block, Thistle board, fiber cement filled board etc., but represent various light plate, the composite plate proportion of the modern level of materials for wall still very little, be less than 3% of whole materials for wall total amount, restricting the development of building trade.
Summary of the invention
The objective of the invention is at the deficiencies in the prior art, a kind of lightweight, mechanical property is good, the iron tailings utilization rate is high iron tailing sintered porous heat insulation board are provided.
For solving the problems of the technologies described above, the technical solution used in the present invention is: a kind of iron tailing sintered porous heat insulation board, it is characterized in that making: iron tailings 10%～40% by the raw material of following mass percent, shale 40%～70%, flexibilizer 3%～15%, cosolvent 6%～20%, blowing agent 1%～10%; Described flexibilizer is a kind of in muscovite, carborundum and the fluorite, described cosolvent is a kind of in borax, potassic feldspar, albite and the lead oxide, described blowing agent is the mixture of sodium carbonate powder, carborundum powder, iron powder and phosphoric acid calcium powder, mass percent is: sodium carbonate powder 1%～10%, carborundum powder 1%～30%, iron powder 8%～30%, phosphoric acid calcium powder 30%～90%.
First optimal technical scheme of the present invention is: a kind of iron tailing sintered porous heat insulation board, it is characterized in that making: iron tailings 20%～30% by the raw material of following mass percent, shale 45%～55%, flexibilizer 5%～10%, cosolvent 10%～15%, blowing agent 1%～5%, surplus are water; Described flexibilizer is a kind of in muscovite, carborundum and the fluorite, described cosolvent is a kind of in borax, potassic feldspar, albite and the lead oxide, described blowing agent is the mixture of sodium carbonate powder, carborundum powder, iron powder and phosphoric acid calcium powder, mass percent is: sodium carbonate powder 1%～10%, carborundum powder 1%～30%, iron powder 8%～30%, phosphoric acid calcium powder 30%～90%.
Second optimal technical scheme of the present invention is: a kind of iron tailing sintered porous heat insulation board, it is characterized in that making: iron tailings 10%～40% by the raw material of following mass percent, shale 40%～70%, flexibilizer 3%～15%, cosolvent 6%～20%, blowing agent 1%～10%, surplus are water; Described flexibilizer is a kind of in muscovite, carborundum and the fluorite, described cosolvent is a kind of in borax, potassic feldspar, albite and the lead oxide, described blowing agent is the mixture of sodium carbonate powder, carborundum powder, iron powder and phosphoric acid calcium powder, mass percent is: sodium carbonate powder 2～8%, carborundum powder 5%～10%, iron powder 15%～25%, phosphoric acid calcium powder 65%～75%.
The present invention's the 3rd optimal technical scheme is: a kind of iron tailing sintered porous heat insulation board, it is characterized in that making: iron tailings 20%～30% by the raw material of following mass percent, shale 45%～55%, flexibilizer 5%～10%, cosolvent 10%～15%, blowing agent 5%～10%, surplus are water; Described flexibilizer is a kind of in muscovite, carborundum and the fluorite, described cosolvent is a kind of in borax, potassic feldspar, albite and the lead oxide, described blowing agent is the mixture of sodium carbonate powder, carborundum powder, iron powder and phosphoric acid calcium powder, mass percent is: sodium carbonate powder 2～8%, carborundum powder 5%～10%, iron powder 15%～25%, phosphoric acid calcium powder 65%～75%.
Preparation method of the present invention is: shale and iron tailings are sent into jaw crusher and hammer crushing crusher machine respectively, granularity≤25mm after the fragmentation, send into the ball mill grinding then, shale behind the grinding and iron tailings are through sieving, measuring, and grinding fineness is between 20～80 μ m; Is to mix after the shale of 20～80 μ m and iron tailings add flexibilizer, cosolvent and blowing agent by said ratio with grinding fineness, send into mix in the batch mixer after, through feed bin, to add mixture quality percentage in advance be 3～15% water balling-up granulation, the raw material ball particle diameter is 1～7mm; Air dry is distributed in raw material ball in the mould of cleaning and spraying release agent by material distributing machine after 24 hours equably, then the unsettled kiln of putting into of mould is burnt till, kiln adopts automatic control system, temperature curve is controlled, sintering process adopts the mode of segmentation insulation to carry out, calcining system is: room temperature～300 ℃, and heating rate is 7～15 ℃/min; 300 ℃～900 ℃, heating rate is 2～10 ℃/min; 900 ℃～1000 ℃, heating rate is 3～8 ℃/min; 1000 ℃～1200 ℃ of blowing temperatures, heating rate is 2～10 ℃/min; 1200 ℃ of insulation coolings after 30 minutes, rate of temperature fall is 2～10 ℃/min; At last cooled sheet material finished product is stacked.
The present invention compared with prior art has the following advantages:
1. iron ore mine utilization rate of the present invention can reach 40%, and energy conservation economizes on resources, is beneficial to environmental protection, has good social benefit.
2. adopt the high temperature foam process, by addition and the bulk density of the controlled panel of sintering schedule and the size and the distribution of pore of blowing agent.
3. the equally distributed porous light sheet material of prepared pore, bulk density is 400～600kg/m
3, coefficient of thermal conductivity is 0.11～0.17W/m.K, compressive strength is 7～10Mpa, can satisfy the requirement of national different regions building energy conservation 50%, with the same life-span of building, has good economic benefits and social benefit.
Below by embodiment the present invention is described in further detail.
The specific embodiment
Embodiment 1
Present embodiment is made by the raw material of following mass percent: iron tailings 20%, shale 70%, flexibilizer 3%, cosolvent 6%, blowing agent 1%; Described flexibilizer is a kind of in muscovite, carborundum and the fluorite, described cosolvent is a kind of in borax, potassic feldspar, albite and the lead oxide, described blowing agent is the mixture of sodium carbonate powder, carborundum powder, iron powder and phosphoric acid calcium powder, mass percent is: sodium carbonate powder 1%, carborundum powder 1%, iron powder 8%, phosphoric acid calcium powder 90%.
The preparation method is: shale and iron tailings are sent into jaw crusher and hammer crushing crusher machine respectively, and the granularity≤25mm after the fragmentation sends into the ball mill grinding then, and shale behind the grinding and iron tailings are through sieving, measuring, and grinding fineness is between 20～80 μ m; Is to mix after the shale of 20～80 μ m and iron tailings add flexibilizer, cosolvent and blowing agent by said ratio with grinding fineness, send into mix in the batch mixer after, through feed bin, to add mixture quality percentage in advance be 3～15% water balling-up granulation, the raw material ball particle diameter is 1～7mm; Air dry is distributed in raw material ball in the mould of cleaning and spraying release agent by material distributing machine after 24 hours equably, then the unsettled kiln of putting into of mould is burnt till, kiln adopts automatic control system, temperature curve is controlled, sintering process adopts the mode of segmentation insulation to carry out, calcining system is: room temperature～300 ℃, and heating rate is 7～15 ℃/min; 300 ℃～900 ℃, heating rate is 2～10 ℃/min; 900 ℃～1000 ℃, heating rate is 3～8 ℃/min; 1000 ℃～1200 ℃ of blowing temperatures, heating rate is 2～10 ℃/min; 1200 ℃ of insulation coolings after 30 minutes, rate of temperature fall is 2～10 ℃/min; At last cooled sheet material finished product is stacked.
Embodiment 2
Present embodiment is made by the raw material of following mass percent: iron tailings 15%, shale 40%, flexibilizer 15%, cosolvent 20%, blowing agent 10%; Described flexibilizer is a kind of in muscovite, carborundum and the fluorite, described cosolvent is a kind of in borax, potassic feldspar, albite and the lead oxide, described blowing agent is the mixture of sodium carbonate powder, carborundum powder, iron powder and phosphoric acid calcium powder, mass percent is: sodium carbonate powder 10%, carborundum powder 30%, iron powder 30%, phosphoric acid calcium powder 30%.
The preparation method of present embodiment is with embodiment 1.
Embodiment 3
Present embodiment is made by the raw material of following mass percent: iron tailings 10%, shale 60, flexibilizer 8%, cosolvent 15%, blowing agent 7%; Described flexibilizer is a kind of in muscovite, carborundum and the fluorite, described cosolvent is a kind of in borax, potassic feldspar, albite and the lead oxide, described blowing agent is the mixture of sodium carbonate powder, carborundum powder, iron powder and phosphoric acid calcium powder, mass percent is: sodium carbonate powder 5%, carborundum powder 15%, iron powder 20%, phosphoric acid calcium powder 60%.
The preparation method of present embodiment is with embodiment 1.
Embodiment 4
Present embodiment is made by the raw material of following mass percent: iron tailings 40%, shale 40%, flexibilizer 3%, cosolvent 12%, blowing agent 5%; Described flexibilizer is a kind of in muscovite, carborundum and the fluorite, described cosolvent is a kind of in borax, potassic feldspar, albite and the lead oxide, described blowing agent is the mixture of sodium carbonate powder, carborundum powder, iron powder and phosphoric acid calcium powder, mass percent is: sodium carbonate powder 6%, carborundum powder 20%, iron powder 19%, phosphoric acid calcium powder 55%.
The preparation method of present embodiment is with embodiment 1.
Embodiment 5
Present embodiment is made by the raw material of following mass percent: iron tailings 30%, shale 45%, flexibilizer 10%, cosolvent 10%, blowing agent 5%; Described flexibilizer is a kind of in muscovite, carborundum and the fluorite, described cosolvent is a kind of in borax, potassic feldspar, albite and the lead oxide, described blowing agent is the mixture of sodium carbonate powder, carborundum powder, iron powder and phosphoric acid calcium powder, mass percent is: sodium carbonate powder 8%, carborundum powder 10%, iron powder 17%, phosphoric acid calcium powder 65%.
The preparation method of present embodiment is with embodiment 1.
Embodiment 6
Present embodiment is made by the raw material of following mass percent: iron tailings 20%, shale 55%, flexibilizer 5%, cosolvent 15%, blowing agent 5%; Described flexibilizer is a kind of in muscovite, carborundum and the fluorite, described cosolvent is a kind of in borax, potassic feldspar, albite and the lead oxide, described blowing agent is the mixture of sodium carbonate powder, carborundum powder, iron powder and phosphoric acid calcium powder, mass percent is: sodium carbonate powder 2%, carborundum powder 5%, iron powder 18%, phosphoric acid calcium powder 75%.
The preparation method of present embodiment is with embodiment 1.
Embodiment 7
Present embodiment is made by the raw material of following mass percent: iron tailings 26%, shale 51%, flexibilizer 8%, cosolvent 14%, blowing agent 1%; Described flexibilizer is a kind of in muscovite, carborundum and the fluorite, described cosolvent is a kind of in borax, potassic feldspar, albite and the lead oxide, described blowing agent is the mixture of sodium carbonate powder, carborundum powder, iron powder and phosphoric acid calcium powder, mass percent is: sodium carbonate powder 7%, carborundum powder 8%, iron powder 15%, phosphoric acid calcium powder 70%.
The preparation method of present embodiment is with embodiment 1.
Embodiment 8
Present embodiment is made by the raw material of following mass percent: iron tailings 28%, shale 50%, flexibilizer 7%, cosolvent 12%, blowing agent 3%; Described flexibilizer is a kind of in muscovite, carborundum and the fluorite, described cosolvent is a kind of in borax, potassic feldspar, albite and the lead oxide, described blowing agent is the mixture of sodium carbonate powder, carborundum powder, iron powder and phosphoric acid calcium powder, mass percent is: sodium carbonate powder 5%, carborundum powder 5%, iron powder 25%, phosphoric acid calcium powder 65%.
The preparation method of present embodiment is with embodiment 1.
The equally distributed iron tailing sintered porous light thermal-insulation sheet material of pore that the foregoing description is prepared, bulk density is 400～600kg/m
3, coefficient of thermal conductivity is 0.11～0.17W/m.K, compressive strength is 7～10Mpa, can satisfy the requirement of national different regions building energy conservation 50%, with the same life-span of building, has good economic benefits and social benefit.
Claims (3)
1, a kind of iron tailing sintered porous heat insulation board is characterized in that being made by the raw material of following mass percent: iron tailings 10%～40%, shale 40%～70%, flexibilizer 3%～15%, cosolvent 6%～20%, blowing agent 1%～10%; Described flexibilizer is a kind of in muscovite, carborundum and the fluorite, described cosolvent is a kind of in borax, potassic feldspar, albite and the lead oxide, described blowing agent is the mixture of sodium carbonate powder, carborundum powder, iron powder and phosphoric acid calcium powder, mass percent is: sodium carbonate powder 1%～10%, carborundum powder 1%～30%, iron powder 8%～30%, phosphoric acid calcium powder 30%～90%.
2, a kind of iron tailing sintered porous heat insulation board according to claim 1, it is characterized in that making: iron tailings 20%～30%, shale 45%～55%, flexibilizer 5%～10% by the raw material of following mass percent, cosolvent 10%～15%, blowing agent 1%～5%.
3, a kind of iron tailing sintered porous heat insulation board according to claim 1 and 2, it is characterized in that, described blowing agent is the mixture of sodium carbonate powder, carborundum powder, iron powder and phosphoric acid calcium powder, mass percent is: sodium carbonate powder 2～8%, carborundum powder 5%～10%, iron powder 15%～25%, phosphoric acid calcium powder 65%～75%.
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| CN2009100236263A CN101684680B (en) | 2009-08-19 | 2009-08-19 | Iron tailing sintered porous heat insulation board |
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| CN2009100236263A CN101684680B (en) | 2009-08-19 | 2009-08-19 | Iron tailing sintered porous heat insulation board |
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| CN101684680B CN101684680B (en) | 2011-06-01 |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102515828A (en) * | 2011-12-14 | 2012-06-27 | 武汉理工大学 | Porous heat-insulation material prepared utilizing iron ore surrounding rock and iron tailings and preparation method thereof |
| CN102584321A (en) * | 2012-01-09 | 2012-07-18 | 武汉理工大学 | Lightweight porous heat insulation material and preparation method thereof |
| CN102807390A (en) * | 2012-08-26 | 2012-12-05 | 西安墙体材料研究设计院 | Porous sintering heat-insulating hollow block and manufacturing process thereof |
| CN105113705A (en) * | 2015-08-06 | 2015-12-02 | 安徽铭源新型建材科技有限公司 | Heat-insulating wear-resistant inner wallboard |
| CN105924206A (en) * | 2016-04-21 | 2016-09-07 | 广东摩德娜科技股份有限公司 | Production method for heat-preserving and anti-explosion foam ceramic |
| CN107244860A (en) * | 2015-12-21 | 2017-10-13 | 乔俊擎 | A kind of hydraulic engineering scour and abrasion resistant concrete and preparation method thereof |
| CN108585942A (en) * | 2018-05-10 | 2018-09-28 | 合肥昂诺新材料有限公司 | A kind of light noise-reducing composite material and preparation method |
| CN109279771A (en) * | 2018-08-29 | 2019-01-29 | 广西科学院 | A kind of light building material foaming agent and preparation method thereof |
| CN109704805A (en) * | 2019-02-19 | 2019-05-03 | 河北恒钏建筑材料股份有限公司 | A kind of iron tailings prepares crystallite foaming material and its manufacturing method |
| CN110885241A (en) * | 2018-09-07 | 2020-03-17 | 何钢 | Mullite-structure ceramic porous water storage material and preparation method thereof |
-
2009
- 2009-08-19 CN CN2009100236263A patent/CN101684680B/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102515828A (en) * | 2011-12-14 | 2012-06-27 | 武汉理工大学 | Porous heat-insulation material prepared utilizing iron ore surrounding rock and iron tailings and preparation method thereof |
| CN102515828B (en) * | 2011-12-14 | 2014-04-09 | 武汉理工大学 | Porous heat-insulation material prepared utilizing iron ore surrounding rock and iron tailings and preparation method thereof |
| CN102584321A (en) * | 2012-01-09 | 2012-07-18 | 武汉理工大学 | Lightweight porous heat insulation material and preparation method thereof |
| CN102807390A (en) * | 2012-08-26 | 2012-12-05 | 西安墙体材料研究设计院 | Porous sintering heat-insulating hollow block and manufacturing process thereof |
| CN105113705A (en) * | 2015-08-06 | 2015-12-02 | 安徽铭源新型建材科技有限公司 | Heat-insulating wear-resistant inner wallboard |
| CN107244860A (en) * | 2015-12-21 | 2017-10-13 | 乔俊擎 | A kind of hydraulic engineering scour and abrasion resistant concrete and preparation method thereof |
| CN105924206A (en) * | 2016-04-21 | 2016-09-07 | 广东摩德娜科技股份有限公司 | Production method for heat-preserving and anti-explosion foam ceramic |
| CN108585942A (en) * | 2018-05-10 | 2018-09-28 | 合肥昂诺新材料有限公司 | A kind of light noise-reducing composite material and preparation method |
| CN109279771A (en) * | 2018-08-29 | 2019-01-29 | 广西科学院 | A kind of light building material foaming agent and preparation method thereof |
| CN109279771B (en) * | 2018-08-29 | 2021-09-21 | 广西科学院 | Light building material foaming agent and preparation method thereof |
| CN110885241A (en) * | 2018-09-07 | 2020-03-17 | 何钢 | Mullite-structure ceramic porous water storage material and preparation method thereof |
| CN109704805A (en) * | 2019-02-19 | 2019-05-03 | 河北恒钏建筑材料股份有限公司 | A kind of iron tailings prepares crystallite foaming material and its manufacturing method |
| CN109704805B (en) * | 2019-02-19 | 2021-07-02 | 河北恒钏建筑材料有限公司 | Microcrystalline foaming material prepared from iron tailings and preparation method thereof |
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