CN102584321A - Lightweight porous heat insulation material and preparation method thereof - Google Patents
Lightweight porous heat insulation material and preparation method thereof Download PDFInfo
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- CN102584321A CN102584321A CN2012100064926A CN201210006492A CN102584321A CN 102584321 A CN102584321 A CN 102584321A CN 2012100064926 A CN2012100064926 A CN 2012100064926A CN 201210006492 A CN201210006492 A CN 201210006492A CN 102584321 A CN102584321 A CN 102584321A
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Abstract
The invention relates to a lightweight porous heat insulation material prepared by iron tailings and other solid wastes and a preparation method thereof. The lightweight porous heat insulation material comprises solid wastes, adhesives, fluxes, a flexibilizer and a foaming agent according to a mass ratio of 1:0.58-1.7:0.18-0.56:0.04-0.24:0.02-0.03, wherein the components are mixed and sintered to obtain the flexibilizer. According to the invention, the volume density of the product as well as the size and distribution of air holes are controlled by the adding quantity of the foaming agent and the temperature regulation; and the lightweight porous heat insulation material provided by the invention has the advantages of utilization of solid wastes, resource conservation, heat insulation property, lightweight, durability, fireproof property, flame retardance, water resistance, corrosion resistance, convenience in construction and the like.
Description
Technical field
Light porous heat preserving and insulating material provided by the present invention belongs to the novel wall material field, is specifically related to a kind of light porous heat preserving and insulating material of lightweight that utilizes the preparation of solid waste such as iron tailings and preparation method thereof.
Background technology
The economic develop rapidly of China at present, but the various resource and the energy are in short supply day by day, and topsoil, water pollution and Land pollution etc. are serious day by day, economize on resources and the vital issue of protecting environment to become us to face.Raising along with living standards of the people; The demand of dwelling house further increases, and annual newly constructed house area surpasses the summation that all developed countries build up floor area of building every year up to 17～1,800,000,000 square metres; Material consumption level phase more developed country; Steel exceed 10%～25%, and every cubic meter of concrete is used 80 kilograms of cement more, and the reusing sewage rate is merely 25%.National economy will realize Sustainable development, and it is imperative, extremely urgent to carry out building energy conservation.
And in the field, mine, the mine waste residue amount of discharging has reached 50～6,000,000,000 t, and annual speed increment with 3～400,000,000 t, and comprehensive utilization ratio is less than 20%.While, the produced quantity of iron ore constantly increased along with China's Iron And Steel Industry develops rapidly, and the iron tailings that discharge in the dressing-works is more and more.The long-term accumulation of a large amount of mine tailings is land occupation not only, but also causes environmental pollution.Because of the iron tailings chemical ingredients near desirable ingredients such as building ceramic material, glass, brick and tile, do raw material with iron tailings and make various building material products, cost is lower; The mine tailing utilization ratio is high, and consumption is big, has both utilized refuse; Reduce environmental pollution, practiced thrift a large amount of soils again.
Porous material significantly is to have higher void content and lower matrix thermal conductivity, has good heat insulation and preservation effect, so porous material is widely used in every field now more and more.Therefore from environmental protection and energy-conservation two aspects, utilize the porous material of industrial residue preparations such as mine tailing, solid waste, can be used as the ideal material of buildings heat-insulation and heat-preservation.
Summary of the invention
Technical problem to be solved by this invention is: utilize a kind of light porous heat preserving and insulating material that utilizes the preparation of solid waste such as iron tailings, this product has advantages such as efficiently utilizing solid waste, economize the land resource, good effect of heat insulation, waterproof fireproofing, construction are convenient.
Technical scheme below preparation of the present invention is adopted: a kind of light porous heat preserving and insulating material; It is characterized in that its component and component concentration thereof count solid waste by mass ratio: sticker: fusing assistant: toughner: whipping agent=1: 0.58～1.7: 0.18～0.56: 0.04～0.24: 0.02～0.03 forms through mixed sintering; Described sticker is a shale; Said fusing assistant is a feldspar; Described toughner is mica, and described whipping agent is a thermolysis type composite foamable agent, and it presses 1: 1: 3 mixture of mass ratio by calcium phosphate, coal dust and lime carbonate.
Press such scheme; Described solid waste be iron tailings with coal gangue, old brick and tile, ceramic powder, glass cullet waste residue in any one or multiplely mix levigate forming; Its particle diameter is 0.07～0.15mm, and wherein iron tailings accounts for 55～90% of solid waste total mass.
Press such scheme, the particle diameter of described shale is below 0.15mm.
Press such scheme, the particle diameter of described whipping agent is less than 0.075mm.
Press such scheme, described feldspar and mica the two when mixing mass ratio be feldspar: mica=1: 0.5～1.5.
The preparation method of light porous heat preserving and insulating material; It is characterized in that including following steps: count solid waste by mass ratio: sticker: fusing assistant: toughner: solid waste, sticker, fusing assistant, toughner and whipping agent are got in whipping agent=1: 0.58～1.7: 0.18～0.56: 0.04～0.24: 0.02～0.03; Subsequent use; Be about 0.07～0.15mm to particle diameter with solid waste is levigate; Mix with sticker, fusing assistant, thickening material, whipping agent again, and add 7～16% water granulations of starting material total mass in the starting material after mixing, place SiC or Al
2O
3Under the calcining system of setting, burnt till 1～4 hour in the fireproof die, make light porous heat preserving and insulating material after the cooling.
Press such scheme, described calcining system is: be lower than 400 ℃, temperature rise rate is 3～5 ℃/min; 400 ℃～900 ℃, temperature rise rate is 5～10 ℃/min; 900 ℃～firing temperature, temperature rise rate is 1～5 ℃/min, and is incubated 1～4 hour down in firing temperature, and described firing temperature is 1080～1160 ℃.
The present invention compared with prior art has following main advantage:
(1) used iron iron tailings and coal gangue, old brick and tile, pottery end, glass cullet etc. are all solid waste, not only can make resource obtain recycle, reduce the pollution of waste to environment, and can practice thrift a large amount of land resourcess; Have good thermal and insulating performance, have characteristics such as excellent waterproof, fire prevention, high-durability;
(2) porous thermal insulating lagging material provided by the present invention adopts thermolysis type whipping agent; Make sintered article when high temperature sintering, produce a large amount of closed micropores; Thermal shock performance is good; This sintered article can further be adjusted the intensity of thermal conductivity and material by addition and the volume density of temperature schedule control goods and the size and the distribution of pore of whipping agent;
(3) porous thermal insulating lagging material ultimate compression strength provided by the present invention is high, and thermal conductivity is low, and volume density is little, also has fire protection flame retarding, water proof anti-seepage, is easy to characteristics such as construction.The porosity of prepared light porous heat preserving and insulating material is 33.62～48.29%%, and average thermal conductivity is 0.09～0.16W/mK, and volume density is 500～1450Kg/m
3, ultimate compression strength is 5～14Mpa, all the other each item indexs also can satisfy the requirement of GB 13544-2000 and GB6566-2001.
Description of drawings
Fig. 1 is the structural section figure of the light porous heat preserving and insulating material of the present invention;
Fig. 2 is an XRD diffracting spectrum of the present invention.
Embodiment
In order to understand the present invention better, further illustrate content of the present invention below in conjunction with embodiment, but content of the present invention not only is confined to following embodiment.
Embodiment 1:
Is 1: 1.3: 0.4 with solid waste such as iron tailings, shale, feldspar, mica, whipping agent according to mass ratio: mix and stir at 0.2: 0.03; The 14% water granulation that adds the starting material total mass; Ageing 1 day obtains to put into the SiC fireproof die after the suitable plasticity-, is burning till under 1100 ℃ about 2 hours; Can obtain thermal conductivity is 0.127W/mK; Ultimate compression strength is 9.6MPa, and density is 1023g/cm3, and all the other each item indexs also satisfy the light porous heat preserving and insulating material of GB13544-2000 and GB6566-2001 requirement.Wherein, the particle diameter of whipping agent is less than 0.075mm, and the particle diameter of all the other solid materials is less than 0.15mm; Said solid waste is that iron tailings, coal gangue and old brick and tile are formed according to mass ratio at 25: 3: 2; Temperature schedule is: be lower than 400 ℃, temperature rise rate is 5 ℃/min; 400 ℃～900 ℃, temperature rise rate is 10 ℃/min; 900 ℃～1100 ℃, temperature rise rate is 3 ℃/min, and in 1100 ℃ of insulations 2 hours.
The chemical analysis of all the other raw materials is seen table 1-3, and physical properties of articles sees attached list 4, and shown in Figure 2 is the XRD figure spectrum that makes sample under the different sintering temperatures, can be found out by figure, and the main thing in the sample is quartz, plagioclase and a small amount of rhombohedral iron ore mutually.Wherein, with the rising of sintering temperature, the peak intensity that quartz, plagioclase and rhombohedral iron ore are corresponding descends to some extent, explains that three kinds of mineral contents reduce with the rising of sintering temperature.Owing to there is not new thing to produce mutually, the rising mineral melt of analyzing its reason and possibly being with sintering temperature produces more liquid phase.
Embodiment 2:
Is 1: 1.1: 0.25 with solid waste such as iron tailings, shale, feldspar, mica, whipping agent according to mass ratio: mix and stir at 0.12: 0.025; The 15% water granulation that adds the starting material total mass; Make after the plasticity-that obtains to suit and put into the SiC mould; Burning till under 1110 ℃ about 3 hours, can obtain thermal conductivity is 0.114W/mK, and ultimate compression strength is 8.3MPa; Density is 942g/cm3, and all the other each item indexs also satisfy the light porous heat preserving and insulating material of GB13544-2000 and GB6566-2001 requirement.Wherein, the particle diameter of whipping agent is less than 0.075mm, and the particle diameter of all the other solid materials is less than 0.15mm; Said solid waste is that iron tailings, coal gangue and old brick and tile are formed according to mass ratio at 14: 3: 3; Temperature schedule is: be lower than 400 ℃, temperature rise rate is 5 ℃/min; 400 ℃～900 ℃, temperature rise rate is 10 ℃/min; 900 ℃～1110 ℃, temperature rise rate is 4 ℃/min, and in 1110 ℃ of insulations 3 hours.The chemical analysis of all the other raw materials is seen table 1-3.
Embodiment 3:
Is 1: 1.2: 0.2 with solid waste such as iron tailings, shale, feldspar, mica, whipping agent according to mass ratio: mix and stir at 0.15: 0.03; The 15% water granulation that adds the starting material total mass; Make after the plasticity-that obtains to suit and put into the SiC mould; Burning till under 1120 ℃ about 2 hours, can obtain thermal conductivity is 0.099W/mK, and ultimate compression strength is 7.5MPa; Density is 829g/cm3, and all the other each item indexs also satisfy the light porous heat preserving and insulating material of GB13544-2000 and GB6566-2001 requirement.Wherein, the particle diameter of whipping agent is less than 0.075mm, and the particle diameter of all the other solid materials is less than 0.15mm; Said solid waste is that iron tailings, coal gangue and glass cullet are formed according to mass ratio at 16: 3: 2; Temperature schedule is: be lower than 400 ℃, temperature rise rate is 5 ℃/min; 400 ℃～900 ℃, temperature rise rate is 10 ℃/min; 900 ℃～1120 ℃, temperature rise rate is 3 ℃/min, and in 1120 ℃ of insulations 2 hours.The chemical analysis of all the other raw materials is seen table 1-3.
Embodiment 4:
Is 1: 0.7: 0.2 with solid waste such as iron tailings, shale, feldspar, mica, whipping agent according to mass ratio: mix and stir at 0.1: 0.02; The 14% water granulation that adds the starting material total mass; Make after the plasticity-that obtains to suit and put into the SiC mould; Burning till under 1130 ℃ about 3 hours, can obtain thermal conductivity is 0.108W/mK, and ultimate compression strength is 6.9MPa; Density is 695g/cm3, and all the other each item indexs also satisfy the light porous heat preserving and insulating material of GB13544-2000 and GB6566-2001 requirement.Wherein, the particle diameter of whipping agent is less than 0.075mm, and the particle diameter of all the other solid materials is less than 0.15mm; Said solid waste is that iron tailings, old brick and tile are formed according to mass ratio at 17: 3; Temperature schedule is: be lower than 400 ℃, temperature rise rate is 5 ℃/min; 400 ℃～900 ℃, temperature rise rate is 8 ℃/min; 900 ℃～1130 ℃, temperature rise rate is 5 ℃/min, and in 1130 ℃ of insulations 3 hours.The chemical analysis of all the other raw materials is seen table 1-3.
Embodiment 5:
Is 1: 1.3: 0.4 with solid waste such as iron tailings, shale, feldspar, mica, whipping agent according to mass ratio: mix and stir at 0.23: 0.03; The 14% water granulation that adds the starting material total mass; Make after the plasticity-that obtains to suit and put into the SiC mould; Burning till under 1140 ℃ about 3 hours, can obtain thermal conductivity is 0.119W/mK, and ultimate compression strength is 5.6MPa; Density is 560g/cm3, and all the other each item indexs also satisfy the light porous heat preserving and insulating material of GB13544-2000 and GB6566-2001 requirement.Wherein, the particle diameter of whipping agent is less than 0.075mm, and the particle diameter of all the other solid materials is less than 0.15mm; Said solid waste is that iron tailings, coal gangue and old brick and tile are formed according to mass ratio at 13: 5: 2; Temperature schedule is: be lower than 400 ℃, temperature rise rate is 5 ℃/min; 400 ℃～900 ℃, temperature rise rate is 9 ℃/min; 900 ℃～1140 ℃, temperature rise rate is 4 ℃/min, and in 1140 ℃ of insulations 3 hours.The chemical analysis of all the other raw materials is seen table 1-3
Subordinate list
Chemical analysis/the Wt% of table 1 iron tailings
Chemical analysis/the Wt% of table 2 coal gangue
Chemical analysis/the Wt% of the old brick and tile of table 3
Table 4 physical properties of articles
Claims (7)
1. light porous heat preserving and insulating material; It is characterized in that its component and component concentration thereof count solid waste by mass ratio: sticker: fusing assistant: toughner: whipping agent=1:0.58 ~ 1.7:0.18 ~ 0.56:0.04 ~ 0.24:0.02 ~ 0.03 forms through mixed sintering; Described sticker is a shale; Said fusing assistant is a feldspar; Described toughner is mica, and described whipping agent is a thermolysis type composite foamable agent, and it is pressed the mixture of mass ratio 1:1:3 by calcium phosphate, coal dust and lime carbonate.
2. light porous heat preserving and insulating material according to claim 1; It is characterized in that described solid waste be iron tailings with coal gangue, old brick and tile, ceramic powder, glass cullet waste residue in any one or multiplely mix levigate forming; Its particle diameter is 0.07 ~ 0.15mm, and wherein iron tailings accounts for 55 ~ 90% of solid waste total mass.
3. light porous heat preserving and insulating material according to claim 1 is characterized in that: the particle diameter of described shale is below 0.15mm.
4. light porous heat preserving and insulating material according to claim 1 is characterized in that: the particle diameter of described whipping agent is less than 0.075mm.
5. light porous heat preserving and insulating material according to claim 1 is characterized in that: described feldspar and mica the two when mixing mass ratio be feldspar: mica=1:0.5 ~ 1.5.
6. the preparation method of the described light porous heat preserving and insulating material of claim 1; It is characterized in that including following steps: count solid waste by mass ratio: sticker: fusing assistant: toughner: solid waste, sticker, fusing assistant, toughner and whipping agent are got in whipping agent=1:0.58 ~ 1.7:0.18 ~ 0.56:0.04 ~ 0.24:0.02 ~ 0.03; Subsequent use; Be about 0.07 ~ 0.15mm to particle diameter with solid waste is levigate; Mix with sticker, fusing assistant, thickening material, whipping agent again, and add 7 ~ 16% water granulations of starting material total mass in the starting material after mixing, place SiC or Al
2O
3Under the calcining system of setting, burnt till 1 ~ 4 hour in the fireproof die, make light porous heat preserving and insulating material after the cooling.
7. light porous heat preserving and insulating material preparation method according to claim 6 is characterized in that described calcining system is: be lower than 400 ℃, temperature rise rate is 3 ~ 5 ℃/min; 400 ℃ ~ 900 ℃, temperature rise rate is 5 ~ 10 ℃/min; 900 ℃ ~ firing temperature, temperature rise rate is 1 ~ 5 ℃/min, and is incubated 1 ~ 4 hour down in firing temperature, and described firing temperature is 1080 ~ 1160 ℃.
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Cited By (11)
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| CN102838379A (en) * | 2012-09-18 | 2012-12-26 | 武汉理工大学 | Lightweight foamed ceramics and preparation method thereof |
| CN103588497A (en) * | 2013-08-08 | 2014-02-19 | 广东摩德娜科技股份有限公司 | Method for manufacturing foam ceramic plates by using ceramic tile polishing waste residues |
| CN104788121A (en) * | 2015-04-20 | 2015-07-22 | 武汉科技大学 | Mullite lightweight refractory material and preparation method thereof |
| CN105218138A (en) * | 2015-09-15 | 2016-01-06 | 江苏锦宇环境工程有限公司 | A kind of method utilizing discarded bone to prepare flame-retardant expanded dose |
| CN106431458A (en) * | 2016-09-18 | 2017-02-22 | 攀枝花学院 | Method for preparing porous ceramics from vanadium extraction tailings |
| CN106747615A (en) * | 2017-03-09 | 2017-05-31 | 咸阳陶瓷研究设计院 | A kind of method that utilization molybdenum tailing produces ceramic thermal insulation plate |
| CN106977225A (en) * | 2017-04-18 | 2017-07-25 | 武汉科技大学 | Iron tailing sintered porous material and preparation method thereof |
| CN107399988A (en) * | 2017-08-22 | 2017-11-28 | 东北大学 | A kind of method for preparing alumina carbon SiClx composite porous ceramic using aluminium silicon systems industrial residue |
| CN109133975A (en) * | 2018-11-05 | 2019-01-04 | 广东金意陶陶瓷集团有限公司 | A kind of high-strength light foamed ceramic plate and preparation method thereof |
| CN112341152A (en) * | 2020-10-08 | 2021-02-09 | 内蒙古建能兴辉陶瓷有限公司 | Preparation raw material and method for multipurpose open-cell type foamed ceramic and application thereof |
| CN114312604A (en) * | 2022-03-11 | 2022-04-12 | 浙江荣泰电工器材股份有限公司 | Upper cover thermal runaway protection mica structural member for new energy automobile and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102838379A (en) * | 2012-09-18 | 2012-12-26 | 武汉理工大学 | Lightweight foamed ceramics and preparation method thereof |
| CN102838379B (en) * | 2012-09-18 | 2013-11-20 | 武汉理工大学 | Lightweight foamed ceramics and preparation method thereof |
| CN103588497A (en) * | 2013-08-08 | 2014-02-19 | 广东摩德娜科技股份有限公司 | Method for manufacturing foam ceramic plates by using ceramic tile polishing waste residues |
| CN103588497B (en) * | 2013-08-08 | 2016-06-22 | 广东摩德娜科技股份有限公司 | Ceramic tile polishing waste residue makes the production method of foam ceramic plate |
| CN104788121A (en) * | 2015-04-20 | 2015-07-22 | 武汉科技大学 | Mullite lightweight refractory material and preparation method thereof |
| CN104788121B (en) * | 2015-04-20 | 2016-08-24 | 武汉科技大学 | A kind of mullite light refractory material and preparation method thereof |
| CN105218138A (en) * | 2015-09-15 | 2016-01-06 | 江苏锦宇环境工程有限公司 | A kind of method utilizing discarded bone to prepare flame-retardant expanded dose |
| CN106431458B (en) * | 2016-09-18 | 2019-05-28 | 攀枝花学院 | The method that tailings in vanadium extraction prepares porous ceramics |
| CN106431458A (en) * | 2016-09-18 | 2017-02-22 | 攀枝花学院 | Method for preparing porous ceramics from vanadium extraction tailings |
| CN106747615A (en) * | 2017-03-09 | 2017-05-31 | 咸阳陶瓷研究设计院 | A kind of method that utilization molybdenum tailing produces ceramic thermal insulation plate |
| CN106977225A (en) * | 2017-04-18 | 2017-07-25 | 武汉科技大学 | Iron tailing sintered porous material and preparation method thereof |
| CN107399988A (en) * | 2017-08-22 | 2017-11-28 | 东北大学 | A kind of method for preparing alumina carbon SiClx composite porous ceramic using aluminium silicon systems industrial residue |
| CN107399988B (en) * | 2017-08-22 | 2020-10-16 | 东北大学 | Method for preparing alumina-silicon carbide composite porous ceramic by using aluminum-silicon industrial waste residues |
| CN109133975A (en) * | 2018-11-05 | 2019-01-04 | 广东金意陶陶瓷集团有限公司 | A kind of high-strength light foamed ceramic plate and preparation method thereof |
| CN112341152A (en) * | 2020-10-08 | 2021-02-09 | 内蒙古建能兴辉陶瓷有限公司 | Preparation raw material and method for multipurpose open-cell type foamed ceramic and application thereof |
| CN114312604A (en) * | 2022-03-11 | 2022-04-12 | 浙江荣泰电工器材股份有限公司 | Upper cover thermal runaway protection mica structural member for new energy automobile and preparation method thereof |
| CN114312604B (en) * | 2022-03-11 | 2022-06-17 | 浙江荣泰电工器材股份有限公司 | Upper cover thermal runaway protection mica structural member for new energy automobile and preparation method thereof |
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Application publication date: 20120718 |