CN103553553B - A kind of with lean property industrial residue of coal gangue for raw material sintering prepares the method for haydite - Google Patents
A kind of with lean property industrial residue of coal gangue for raw material sintering prepares the method for haydite Download PDFInfo
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- CN103553553B CN103553553B CN201310508355.7A CN201310508355A CN103553553B CN 103553553 B CN103553553 B CN 103553553B CN 201310508355 A CN201310508355 A CN 201310508355A CN 103553553 B CN103553553 B CN 103553553B
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- coal gangue
- haydite
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Abstract
The invention belongs to building material field, be specifically related to a kind of with lean property industrial residue of coal gangue for raw material sintering prepares the method for haydite.Technical scheme of the present invention is that lean property coal gangue and phyllite are formed compound, add water glass and water, under sealing condition, place 48h, obtain aged material, aged material caused diameter to be the raw material ball of 5 ~ 15mm, raw material ball is put into loft drier, dry 3 ~ 6h under 106 ° of C conditions, does is drying placed in electric furnace, first 120? ~ 600 ° of C are incubated 15 ~ 25min, then in 600? ~ 1250 ° of C are incubated 10 ~ 15min, obtained lean property coal gangue haydite.The lean property coal gangue sintering haydite light weight that the present invention obtains, high-strength, thermal conductivity is low, water-intake rate is low, performance meets haydite standard for building, both the heat resource in coal gangue had fully been recycled, effectively improve coal gangue value-added content of product again, be a kind of new method for comprehensive utilization of coal gangue, there is good application value.
Description
Technical field
The invention belongs to building material field, be specifically related to a kind of with lean property industrial residue of coal gangue for raw material sintering prepares the method for haydite.
Background technology
China is coal big country, and the annual coal gangue produced is more than 200,000,000 tons, and Piling of Gangue, as mountain, takies a large amount of soil and has a strong impact on environment, imperative to its large recycling.Lean property coal gangue accounts for more than 60% of coal gangue total amount, its siliceous height, and plasticity index is low, is difficult to utilize.Along with the quickening of Urbanization Process In China, Highrise buildings is more and more extensive, if can find a kind of alternative traditional cobble concrete batching, will play the effect of energy-conserving and environment-protective, and also will greatly expand the new way of the large recycling of coal gangue.Therefore, how it is effectively used, and improve added value, become technical problem urgently to be resolved hurrily.
Summary of the invention
For above problem, the invention provides a kind of with lean property industrial residue of coal gangue for raw material sintering prepares the method for haydite, object be fully recycle the heat resource in coal gangue while effectively improve coal gangue value-added content of product.
The technical scheme realizing the object of the invention is carried out according to following steps:
(1) by lean property coal gangue with phyllite according to part by weight lean property coal gangue: phyllite=(1 ~ 2.5): 1 mixes, after stirring, is crushed to below particle diameter 1mm, forms compound A;
(2) in compound A, add water glass, add-on is 5 ~ 10% of compound A gross weight, forms compound B; Add water to compound B and stir, water add-on is 12 ~ 16% of compound B weight, then under sealing condition, places 48h, obtains aged material;
(3) diameter aged material is caused to be the raw material ball of 5 ~ 15mm, raw material ball is put into loft drier, dry 3 ~ 6 h under 106 ° of C conditions, drying is placed in electric furnace, first 15 ~ 25min is incubated at 120 ~ 600 ° of C, then 10 ~ 15min is incubated in 600 ~ 1250 ° of C, obtained lean property coal gangue haydite.
Wherein, above-mentioned lean property coal gangue main component is silicon-dioxide and aluminum oxide, and wherein silicon-dioxide quality content is at least 55%.
Above-mentioned phyllite peels off waste for mining, protolith be generally argillaceous rock, siltstone and in, acid tuff etc., main component is silicon-dioxide and aluminum oxide.
Compared with prior art, feature of the present invention and beneficial effect are:
Lean property industrial residue of coal gangue of the present invention, raw material is easy to get, production cost is low, saves a large amount of soil after industrial applications, very favourable to protecting farmland.Haydite obtained by the present invention, the performances such as intensity, unit weight and porosity all meet haydite standard for building.
The lean property coal gangue sintering haydite light weight that the present invention obtains, high-strength, thermal conductivity is low, water-intake rate is low, performance meets haydite standard for building, both the heat resource in coal gangue had fully been recycled, effectively improve coal gangue value-added content of product again, be a kind of new method for comprehensive utilization of coal gangue, there is good application value.The present invention not only has huge economic benefit, and also has significant social benefit saving land, in the useless and environment protection three of profit, meets the requirement of national industrial policies.
Embodiment
The lean property coal gangue composition adopted in the embodiment of the present invention is SiO by weight percentage
255 ~ 65%, Al
2o
315 ~ 35%, Fe
2o
31 ~ 7%, CaO1 ~ 2%, MgO 1 ~ 3%, R
2o 1 ~ 2.5%, moisture and other 10 ~ 17%.
The phyllite composition adopted in the embodiment of the present invention is SiO by weight percentage
250.29%, Al
2o
330.57%, Fe
2o
38.52%, CaO 0.77%, MgO 0.74%, moisture and other 5.09%.
To lean property coal gangue sintering haydite performance measurement method reference " light-weight aggregate and test method part 2 thereof: light-weight aggregate test method " (GB/T 17431.2-2010) in the embodiment of the present invention
Embodiment 1
(1) by lean property coal gangue with phyllite according to part by weight lean property coal gangue: phyllite=2.5: 1 mixes, after stirring, are crushed to below particle diameter 1mm, form compound A;
(2) in compound A, add water glass, add-on is 10% of compound A gross weight, forms compound B; Add water to compound B and stir, water add-on is 12% of compound B weight, places 48h then under sealing condition, obtains aged material;
(3) aged material caused diameter to be the raw material ball of 5 ~ 15mm, raw material ball is put into loft drier, dry 3 h under 106 ° of C conditions, drying is placed in electric furnace, first be incubated 25min at 120 ° of C, be then incubated 15min in 600 ° of C, obtained lean property coal gangue haydite.
After testing, lean property coal gangue sintering haydite cylindrical compress strength 5.1MPa, the tap density 535kg/m of preparation
3, water-intake rate 8.6%.
Embodiment 2
(1) by lean property coal gangue with phyllite according to part by weight lean property coal gangue: phyllite=2: 1 mixes, after stirring, are crushed to below particle diameter 1mm, form compound A;
(2) in compound A, add water glass, add-on is 8% of compound A gross weight, forms compound B; Add water to compound B and stir, water add-on is 14% of compound B weight, places 48h then under sealing condition, obtains aged material;
(3) aged material caused diameter to be the raw material ball of 5 ~ 15mm, raw material ball is put into loft drier, dry 5 h under 106 ° of C conditions, drying is placed in electric furnace, first be incubated 20min at 300 ° of C, be then incubated 12min in 1000 ° of C, obtained lean property coal gangue haydite.
After testing, lean property coal gangue sintering haydite cylindrical compress strength 5.6MPa, the tap density 568kg/m of preparation
3, water-intake rate 7.5%.
Embodiment 3
(1) by lean property coal gangue with phyllite according to part by weight lean property coal gangue: phyllite=1: 1 mixes, after stirring, is crushed to below particle diameter 1mm, forms compound A;
(2) in compound A, add water glass, add-on is 5% of compound A gross weight, forms compound B; Add water to compound B and stir, water add-on is 16% of compound B weight, places 48h then under sealing condition, obtains aged material;
(3) aged material caused diameter to be the raw material ball of 5 ~ 15mm, raw material ball is put into loft drier, dry 6 h under 106 ° of C conditions, drying is placed in electric furnace, first be incubated 15min at 600 ° of C, be then incubated 10min in 1250 ° of C, obtained lean property coal gangue haydite.
After testing, lean property coal gangue sintering haydite cylindrical compress strength 5.0MPa, the tap density 598kg/m of preparation
3, water-intake rate 7.2%.
Claims (2)
1. sinter for raw material the method preparing haydite with lean property industrial residue of coal gangue, it is characterized in that carrying out according to following steps:
(1) by lean property coal gangue with phyllite according to part by weight lean property coal gangue: phyllite=1: 1 mixes, after stirring, is crushed to below particle diameter 1mm, forms compound A; Described lean property coal gangue main component is silicon-dioxide and aluminum oxide, and wherein silicon-dioxide quality content is at least 55%;
(2) in compound A, add water glass, add-on is 5 ~ 10% of compound A gross weight, forms compound B; Add water to compound B and stir, water add-on is 12 ~ 16% of compound B weight, then under sealing condition, places 48h, obtains aged material;
(3) diameter aged material is caused to be the raw material ball of 5 ~ 15mm, raw material ball is put into loft drier, dry 3 ~ 6 h under 106 ° of C conditions, drying is placed in electric furnace, first 15 ~ 25min is incubated at 120 ~ 600 ° of C, then 10 ~ 15min is incubated in 600 ~ 1250 ° of C, obtained lean property coal gangue haydite.
2. according to claim 1 a kind of with lean property industrial residue of coal gangue for raw material sintering prepares the method for haydite, it is characterized in that described phyllite peels off waste for mining, main component is silicon-dioxide and aluminum oxide.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310508355.7A CN103553553B (en) | 2013-10-25 | 2013-10-25 | A kind of with lean property industrial residue of coal gangue for raw material sintering prepares the method for haydite |
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| CN201310508355.7A CN103553553B (en) | 2013-10-25 | 2013-10-25 | A kind of with lean property industrial residue of coal gangue for raw material sintering prepares the method for haydite |
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| CN103553553A CN103553553A (en) | 2014-02-05 |
| CN103553553B true CN103553553B (en) | 2015-11-04 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111825474A (en) * | 2019-04-15 | 2020-10-27 | 淮南东辰集团有限责任公司 | Coal gangue ceramsite and preparation method thereof |
| CN110508257A (en) * | 2019-08-23 | 2019-11-29 | 煤炭科学技术研究院有限公司 | A kind of use in waste water treatment charcoal-porous ceramic composite adsorption filtrate and its preparation method and application |
| CN113387605B (en) * | 2021-06-18 | 2022-07-26 | 中南大学 | Method for preparing lightweight aggregate by low-temperature self-heating sintering of multiple kinds of coal gangue |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1319573A (en) * | 2001-03-17 | 2001-10-31 | 马芸仙 | Method for producing crushed stone type high-strength and ultralight ceramsite by using carbonaceous slate |
| CN1337378A (en) * | 2001-09-24 | 2002-02-27 | 杨普安 | Coal gangue haydite and its prepn process |
| CN1872784A (en) * | 2006-06-13 | 2006-12-06 | 中国地质大学（武汉） | Haydite prepared from oil shale, and prepartion method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20130009000A (en) * | 2011-07-14 | 2013-01-23 | 이강선 | Coal gangue ceramsite and its preparation approach |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1319573A (en) * | 2001-03-17 | 2001-10-31 | 马芸仙 | Method for producing crushed stone type high-strength and ultralight ceramsite by using carbonaceous slate |
| CN1337378A (en) * | 2001-09-24 | 2002-02-27 | 杨普安 | Coal gangue haydite and its prepn process |
| CN1872784A (en) * | 2006-06-13 | 2006-12-06 | 中国地质大学（武汉） | Haydite prepared from oil shale, and prepartion method |
Non-Patent Citations (2)
| Title |
|---|
| 朝阳某砂岩质煤矸石陶粒的增塑实验;孙晓刚等;《金属矿山》;20130531(第5期);第157-159页 * |
| 陶粒-砖瓦企业转产新产品的又一途径;何添;《砖瓦》;19960430(第4期);第37页 * |
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