CN104211427A - Porous ceramics prepared by using pulverized fuel ash - Google Patents
Porous ceramics prepared by using pulverized fuel ash Download PDFInfo
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- CN104211427A CN104211427A CN201410472929.4A CN201410472929A CN104211427A CN 104211427 A CN104211427 A CN 104211427A CN 201410472929 A CN201410472929 A CN 201410472929A CN 104211427 A CN104211427 A CN 104211427A
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Abstract
The invention discloses porous ceramics prepared by using pulverized fuel ash. The porous ceramics is prepared from the following raw materials in percentage by mass: 35-45 percent of pulverized fuel ash, 25-30 percent of pore-forming agent, 5-10 percent of binding agent, 5-8 percent of additive and 15-20 percent of spent pulping liquor. By adopting the manner, the porous ceramics prepared by using the pulverized fuel ash firstly realizes high-additional value utilization of the pulverized fuel ash, can be used for precision filtration and separation of various mediums, exhaust and noise reduction of high-pressure gas and the like, and is a material which is widely applied to aspects of adsorption, separation, filtration, dispersion, biomedicine and the like; meanwhile, a large quantity of industrial waste can be consumed, and thus the environmental protection is facilitated.
Description
Technical field
The present invention relates to porous ceramics, particularly relate to a kind of porous ceramics utilizing coal ash for manufacturing standby.
Background technology
Flyash is the inevitable outcome in fuel-burning power plant, is one of maximum industrial residue of China's current emissions amount.Contain the noxious pollutant such as plurality of heavy metal, radioactive substance in flyash, grave danger is constituted to environment and public health.
China only has 30% to the utilization ratio of flyash at present, and flyash is the valuable source containing multiple element, along with people are to the enhancing of environmental consciousness and deepening continuously to flyash research, the approach of comprehensive utilization fine coal is also in continuous expansion, also there are the exploitation to flyash in current ceramic technology, and the flyash porous ceramics that how preparation technology is simple, adsorption rate is high, be current ceramic industry urgent problem.
Summary of the invention
The technical problem that the present invention mainly solves is to provide a kind of porous ceramics utilizing coal ash for manufacturing standby; first the high value added utilization to flyash is achieved; the secondary filter that the present invention can be used for various medium be separated; high pressure gas exhaust noise silencing etc.; it is a kind of material be all widely used in absorption, separation, filtration, dispersion and biomedicine etc.; industrial waste can be consumed in a large number simultaneously, be conducive to environment protection.
For solving the problems of the technologies described above, the technical scheme that the present invention adopts is: provide a kind of porous ceramics utilizing coal ash for manufacturing standby, comprise following material composition: flyash, pore-forming material, caking agent, additive and spent pulping liquor, the each Ingredient percent content of described raw material is flyash 35% ~ 45%, pore-forming material 25% ~ 30%, caking agent 5% ~ 10%, additive 5% ~ 8%, spent pulping liquor 15% ~ 20%.
In the present invention's preferred embodiments, each Ingredient percent content of described raw material is flyash 38% ~ 40%, pore-forming material 28% ~ 30%, caking agent 8% ~ 10%, additive 6% ~ 7%, spent pulping liquor 15% ~ 18%.
In the present invention's preferred embodiments, containing Al2O3 25wt% ~ 40wt%, SiO2 45wt% ~ 55wt% in described flyash, Fe2O3 1.5wt% ~ 3.5wt%, CaO1.5%wt ~ 2wt%.
In the present invention's preferred embodiments, described pore-forming material is one or both in carbon black, starch, calcium carbonate.
In the present invention's preferred embodiments, described splicing machine is two kinds of mixtures in glass powder, kaolin, aluminum phosphate.
In the present invention's preferred embodiments, described additive is clay or borax.
In the present invention's preferred embodiments, described spent pulping liquor is water glass waste liquid.
In the present invention's preferred embodiments, described lytag granularity is 85 ~ 105um.
In the present invention's preferred embodiments, the technical parameter of described porous ceramics is: void content 68.26%, folding strength 7.25Mpa, water-intake rate 56.25%, unit weight 0.765g/m
3.
The invention has the beneficial effects as follows: a kind of porous ceramics utilizing coal ash for manufacturing standby of the present invention; first the high value added utilization to flyash is achieved; the secondary filter that the present invention can be used for various medium be separated; high pressure gas exhaust noise silencing etc.; it is a kind of material be all widely used in absorption, separation, filtration, dispersion and biomedicine etc.; industrial waste can be consumed in a large number simultaneously, be conducive to environment protection.
Embodiment
Be clearly and completely described to the technical scheme in the embodiment of the present invention below, obviously, described embodiment is only a part of embodiment of the present invention, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making other embodiments all obtained under creative work prerequisite, belong to the scope of protection of the invention.
The embodiment of the present invention comprises:
A kind of porous ceramics utilizing coal ash for manufacturing standby, comprise following material composition: flyash, pore-forming material, caking agent, additive and spent pulping liquor, the each Ingredient percent content of described raw material is flyash 35% ~ 45%, pore-forming material 25% ~ 30%, caking agent 5% ~ 10%, additive 5% ~ 8%, spent pulping liquor 15% ~ 20%.
Further, each Ingredient percent content of described raw material is flyash 38% ~ 40%, pore-forming material 28% ~ 30%, caking agent 8% ~ 10%, additive 6% ~ 7%, spent pulping liquor 15% ~ 18%.
Further, containing Al2O3 25wt% ~ 40wt%, SiO2 45wt% ~ 55wt% in described flyash, Fe2O3 1.5wt% ~ 3.5wt%, CaO1.5%wt ~ 2wt%.
Further, described pore-forming material is one or both in carbon black, starch, calcium carbonate.
Further, described splicing machine is two kinds of mixtures in glass powder, kaolin, aluminum phosphate.
Further, described additive is clay or borax.
Further, described spent pulping liquor is water glass waste liquid.
Further, described lytag granularity is 85 ~ 105um.
Further, the technical parameter of described porous ceramics is: void content 68.26%, folding strength 7.25Mpa, water-intake rate 56.25%, unit weight 0.765g/m
3.
The invention has the beneficial effects as follows: a kind of porous ceramics utilizing coal ash for manufacturing standby of the present invention; first the high value added utilization to flyash is achieved; the secondary filter that the present invention can be used for various medium be separated; high pressure gas exhaust noise silencing etc.; it is a kind of material be all widely used in absorption, separation, filtration, dispersion and biomedicine etc.; industrial waste can be consumed in a large number simultaneously, be conducive to environment protection.
The foregoing is only embodiments of the invention; not thereby the scope of the claims of the present invention is limited; every utilize description of the present invention to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical field, be all in like manner included in scope of patent protection of the present invention.
Claims (9)
1. the porous ceramics utilizing coal ash for manufacturing standby, it is characterized in that, comprise following material composition: flyash, pore-forming material, caking agent, additive and spent pulping liquor, the each Ingredient percent content of described raw material is flyash 35% ~ 45%, pore-forming material 25% ~ 30%, caking agent 5% ~ 10%, additive 5% ~ 8%, spent pulping liquor 15% ~ 20%.
2. the porous ceramics utilizing coal ash for manufacturing standby according to claim 1, it is characterized in that, the each Ingredient percent content of described raw material is flyash 38% ~ 40%, pore-forming material 28% ~ 30%, caking agent 8% ~ 10%, additive 6% ~ 7%, spent pulping liquor 15% ~ 18%.
3. the porous ceramics utilizing coal ash for manufacturing standby according to claim 1, is characterized in that, containing Al2O3 25wt% ~ 40wt%, SiO2 45wt% ~ 55wt% in described flyash, and Fe2O3 1.5wt% ~ 3.5wt%, CaO1.5%wt ~ 2wt%.
4. the porous ceramics utilizing coal ash for manufacturing standby according to claim 1, is characterized in that, described pore-forming material is one or both in carbon black, starch, calcium carbonate.
5. the porous ceramics utilizing coal ash for manufacturing standby according to claim 1, is characterized in that, described splicing machine is two kinds of mixtures in glass powder, kaolin, aluminum phosphate.
6. the porous ceramics utilizing coal ash for manufacturing standby according to claim 1, is characterized in that, described additive is clay or borax.
7. the porous ceramics utilizing coal ash for manufacturing standby according to claim 1, is characterized in that, described spent pulping liquor is water glass waste liquid.
8. the porous ceramics utilizing coal ash for manufacturing standby according to claim 1, is characterized in that, described lytag granularity is 85 ~ 105um.
9. the porous ceramics utilizing coal ash for manufacturing standby according to claim 1, is characterized in that, the technical parameter of described porous ceramics is: void content 68.26%, folding strength 7.25Mpa, water-intake rate 56.25%, unit weight 0.765g/m
3.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410472929.4A CN104211427A (en) | 2014-09-17 | 2014-09-17 | Porous ceramics prepared by using pulverized fuel ash |
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| CN201410472929.4A CN104211427A (en) | 2014-09-17 | 2014-09-17 | Porous ceramics prepared by using pulverized fuel ash |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105999846A (en) * | 2016-06-27 | 2016-10-12 | 含山县科宇环境工程有限公司 | Purifying filtering material for industrial wastewater and preparation method thereof |
| CN107021744A (en) * | 2017-05-17 | 2017-08-08 | 山东建筑大学 | A kind of method that porous ceramics is prepared with quartz discarded object |
| CN108117406A (en) * | 2016-11-28 | 2018-06-05 | 神华集团有限责任公司 | A kind of porous ceramics of the method and preparation of white clay or coal ash for manufacturing porous ceramics |
| CN108467258A (en) * | 2018-05-25 | 2018-08-31 | 北方民族大学 | A kind of perforation stomata porous ceramics standby using coal ash for manufacturing and preparation method thereof |
| CN114436631A (en) * | 2021-12-30 | 2022-05-06 | 靖州县惠能耐火材料有限公司 | Preparation method of fly ash-based porous ceramic |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102875128A (en) * | 2012-10-30 | 2013-01-16 | 华北水利水电学院 | Pulverized fuel ash-based heat storage honeycomb ceramic and preparation method thereof |
| CN103304253A (en) * | 2013-06-27 | 2013-09-18 | 山东建筑大学 | Porous ceramic prepared from red mud and coal ash and preparation method thereof |
| CN103420686A (en) * | 2013-08-02 | 2013-12-04 | 南昌大学 | Fly ash open-cell foamed ceramic and preparation method thereof |
| CN103951457A (en) * | 2014-04-21 | 2014-07-30 | 淄博鲁友耐火材料有限公司 | Foamed ceramic wall insulation material and preparation method thereof |
-
2014
- 2014-09-17 CN CN201410472929.4A patent/CN104211427A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102875128A (en) * | 2012-10-30 | 2013-01-16 | 华北水利水电学院 | Pulverized fuel ash-based heat storage honeycomb ceramic and preparation method thereof |
| CN103304253A (en) * | 2013-06-27 | 2013-09-18 | 山东建筑大学 | Porous ceramic prepared from red mud and coal ash and preparation method thereof |
| CN103420686A (en) * | 2013-08-02 | 2013-12-04 | 南昌大学 | Fly ash open-cell foamed ceramic and preparation method thereof |
| CN103951457A (en) * | 2014-04-21 | 2014-07-30 | 淄博鲁友耐火材料有限公司 | Foamed ceramic wall insulation material and preparation method thereof |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105999846A (en) * | 2016-06-27 | 2016-10-12 | 含山县科宇环境工程有限公司 | Purifying filtering material for industrial wastewater and preparation method thereof |
| CN108117406A (en) * | 2016-11-28 | 2018-06-05 | 神华集团有限责任公司 | A kind of porous ceramics of the method and preparation of white clay or coal ash for manufacturing porous ceramics |
| CN108117406B (en) * | 2016-11-28 | 2020-11-24 | 神华集团有限责任公司 | Method for preparing porous ceramic from white mud or fly ash and prepared porous ceramic |
| CN107021744A (en) * | 2017-05-17 | 2017-08-08 | 山东建筑大学 | A kind of method that porous ceramics is prepared with quartz discarded object |
| CN108467258A (en) * | 2018-05-25 | 2018-08-31 | 北方民族大学 | A kind of perforation stomata porous ceramics standby using coal ash for manufacturing and preparation method thereof |
| CN114436631A (en) * | 2021-12-30 | 2022-05-06 | 靖州县惠能耐火材料有限公司 | Preparation method of fly ash-based porous ceramic |
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Application publication date: 20141217 |