CN102372496A - Material formula for preparing gasification furnace slag ceramisite and production method of ceramisite - Google Patents
Material formula for preparing gasification furnace slag ceramisite and production method of ceramisite Download PDFInfo
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- CN102372496A CN102372496A CN2011102379663A CN201110237966A CN102372496A CN 102372496 A CN102372496 A CN 102372496A CN 2011102379663 A CN2011102379663 A CN 2011102379663A CN 201110237966 A CN201110237966 A CN 201110237966A CN 102372496 A CN102372496 A CN 102372496A
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- Prior art keywords
- haydite
- slag
- ceramisite
- coal gasification
- roasting
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- 239000002893 slag Substances 0.000 title claims abstract description 46
- 238000002309 gasification Methods 0.000 title claims abstract description 35
- 239000000463 material Substances 0.000 title claims abstract description 16
- 238000004519 manufacturing process Methods 0.000 title abstract description 9
- 239000003245 coal Substances 0.000 claims abstract description 44
- 239000004927 clay Substances 0.000 claims abstract description 19
- 239000011521 glass Substances 0.000 claims abstract description 7
- 239000000843 powder Substances 0.000 claims abstract description 7
- 229910052925 anhydrite Inorganic materials 0.000 claims abstract description 5
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 claims abstract description 5
- 238000000034 method Methods 0.000 claims description 22
- 238000001816 cooling Methods 0.000 claims description 20
- 238000005245 sintering Methods 0.000 claims description 20
- 210000001161 mammalian embryo Anatomy 0.000 claims description 19
- 238000003756 stirring Methods 0.000 claims description 17
- 238000007605 air drying Methods 0.000 claims description 10
- 238000000498 ball milling Methods 0.000 claims description 10
- 238000005469 granulation Methods 0.000 claims description 10
- 230000003179 granulation Effects 0.000 claims description 10
- 238000012216 screening Methods 0.000 claims description 10
- 239000002245 particle Substances 0.000 claims description 9
- 239000008187 granular material Substances 0.000 claims description 8
- 239000000203 mixture Substances 0.000 claims description 8
- 229910052573 porcelain Inorganic materials 0.000 claims description 8
- 239000002994 raw material Substances 0.000 abstract description 22
- 238000001179 sorption measurement Methods 0.000 abstract description 3
- 239000003795 chemical substances by application Substances 0.000 abstract 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 239000000919 ceramic Substances 0.000 description 7
- 239000000047 product Substances 0.000 description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 5
- 238000001354 calcination Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- 239000010881 fly ash Substances 0.000 description 5
- 229910052799 carbon Inorganic materials 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 239000006227 byproduct Substances 0.000 description 3
- 239000000446 fuel Substances 0.000 description 3
- 239000002910 solid waste Substances 0.000 description 3
- 239000000945 filler Substances 0.000 description 2
- 238000003837 high-temperature calcination Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 230000000813 microbial effect Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- 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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- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses a material formula for preparing a gasification furnace slag ceramisite and a production method of the ceramisite. The formula comprises the following components by weight percent: 80-95% of coal gasification furnace slag, 0-15% of clay and 5-15% of fluxing agent, wherein the fluxing agent is CaO, MgO, NaO, CaSO4 or glass powder. The coal gasification furnace slag is used as the raw material so that the prepared ceramisite product has more excellent adsorption property and wider application range.
Description
Technical field
The invention belongs to the solid waste utilization technology in environment protection and comprehensive utilization of resources field, relate to a kind of method of utilizing of gasification production solid waste, especially make the material prescription of gasifier slag haydite and the method for producing haydite thereof.The haydite that this method makes mainly is used as the filler and the heat insulating and sound insulating material of Sewage Plant microbial film carry, foul smell processing trickling filter filler, light-high-strength material of construction.
Background technology
Along with the minimizing day by day of petroleum resources, more and more embody utility value and economic advantages with coal as the raw material production energy and Chemicals, and gasification provides raw material of synthetic gas as most important technology in the Coal Chemical Industry industrial chain for the subsequent production process.Rise along with China's Coal Chemical Industry industry; The Coal Chemical Industry project of building up, building and will build is numerous; And gasifier slag is as the solid waste of gasifying process by-product; If it is not rationally utilized and abandons landfill disposal, undoubtedly with serious environment pollution and the waste that causes ample resources.With flyash as raw material production ceramic product technical maturity.Gasifier slag and flyash constituent are similar; But also there is significantly difference; Gasifier slag is the by product that coal generates under the HTHP weakly reducing atmosphere; And flyash to be coal take place under high temperature oxidation atmosphere that burning generates by product; So its internal structure with become to be grouped into certain difference, this has also just determined is the method for raw material production haydite with flyash with produce haydite with slag of coal gasification different, the coal gasifier dregs porcelain granule of being produced also has the character that some are different from lytag.
Summary of the invention
The objective of the invention is to overcome the shortcoming of above-mentioned prior art; A kind of material prescription of gasifier slag haydite and method of producing haydite thereof made is provided, and this method is the good haydite of starting material production performance with the slag of coal gasification, uses for reference the technology that flyash is produced haydite; On this basis, take into full account the character compositing characteristic of slag of coal gasification; To utilize the high characteristics of carbon residue content in the gasifier slag especially, reduce the consumption of the energy in the calcination process, reduce calcining temperature; Adopt suitable technology and prescription to form, to satisfy the requirement of producing.
The objective of the invention is to solve through following technical scheme:
This kind made the material prescription of gasifier slag haydite, according to weight percent, comprises following component:
Slag of coal gasification: 80-95%; Clay: 0-15%; Fusing assistant: 5-15%; Said solubility promoter is CaO, MgO, NaO, CaSO4 or glass powder
The present invention also proposes a kind of haydite working method based on above-mentioned prescription, may further comprise the steps:
1) according to weight percent, 80-95% slag of coal gasification, 0-15% clay and 5-15% fusing assistant were dropped in the ball mill ball milling 30-45 minute, form mixture;
2) use sieve aperture to sieve to above mixture as the vibratory screening apparatus of 0.125mm;
3) screen underflow is added entry and stir, the amount that adds entry is 10%～20% of a mixture quality, uses the shaper granulation again, and particle diameter is 5mm～15mm, and natural air drying after the granulation obtains haydite ball embryo;
4) the above haydite ball embryo that obtains is carried out roasting, sintering temperature is 900 ℃-1300 ℃, and roasting time is 1.0-1.4 hour; Roasting finishes the back below stove internal cooling to 600 ℃, and last kiln discharge, naturally cooling obtain the coal gasifier dregs porcelain granule.
Further, above-mentioned steps 4) in, adopt sintering oven or rotary furnace that haydite ball embryo is carried out roasting.
The present invention has following beneficial effect:
It is raw material that the present invention adopts slag of coal gasification, because residual carbon content is higher in the slag of coal gasification, in the high-temperature calcination process, can be used as fuel, thereby has reduced the usage quantity of extra fuel, reduces calcining temperature, has reduced fuel cost.Gasifier slag is equivalent to a calcination process at the weakly reducing atmosphere HTHP in original gasification, experience follow-up oxidizing atmosphere high-temperature calcination again, thereby make the ceramic product that obtains have higher hardness and intensity.High-load residual carbon impossible perfect combustion in calcination process in the gasifier slag; A wherein residual part is in ceramic product, and this part residual carbon has the adsorption property of gac, and its pore passage structure is flourishing; The aperture is less; Generally between micropore and mesopore, this part residual carbon can remedy the slag macropore more and in lacking, the character of micropore, make the ceramic product of processing have more excellent adsorption property and Application Areas widely.
Embodiment
The raw material that the present invention is used to prepare haydite is main with gasifier slag, and wherein this kind made the material prescription of gasifier slag haydite and according to the component proportion relation that weight percent comprises be: slag of coal gasification: 80-95%; Clay: 0-15%; Fusing assistant: 5-15%.According to this kind proportioning raw materials, the present invention proposes a kind of haydite working method that adopts this raw material, specifically carries out according to following steps:
1) according to weight percent, slag of coal gasification, clay and fusing assistant were dropped in the ball mill ball milling 30-45 minute, form mixture;
2) use sieve aperture to sieve to above mixture as the vibratory screening apparatus of 0.125mm;
3) screen underflow is added an amount of water and stir, use the shaper granulation again, natural air drying after the granulation obtains haydite ball embryo;
4) adopt sintering oven or rotary furnace to carry out roasting to the above haydite ball embryo that obtains and advance, wherein sintering temperature is 900 ℃-1300 ℃, and roasting time is 1.0-1.4 hour; Roasting finishes the back below stove internal cooling to 600 ℃, and last kiln discharge, naturally cooling obtain the coal gasifier dregs porcelain granule.
Below in conjunction with embodiment the present invention is explained further details
Embodiment 1
In the present embodiment, the raw material weight proportioning is:
Slag of coal gasification 85%;
Clay 10%;
CaO 5％。
The haydite working method of present embodiment is following:
1) slag of coal gasification, clay, CaO are mixed the back and dropped in the ball mill ball milling 40 minutes;
2) use sieve aperture to sieve as the vibratory screening apparatus of 0.125mm;
3) screen underflow being added mass ratio is that 15% water stirs;
4) the material granulating and forming in shaper after stirring is about feed particles diameter 10mm, with the raw material natural air drying.
5) raw material haydite ball embryo is sent into roasting in the sintering cellar for storing things, 1050 ℃ of sintering temperatures, roasting time 1.1 hours finishes the back below stove internal cooling to 600 ℃, and last kiln discharge, naturally cooling are processed the slag of coal gasification ceramic product.
Embodiment 2
In the present embodiment, the raw material weight proportioning is:
Slag of coal gasification 80%;
Clay 12%;
Glass powder 8%.
The haydite working method of present embodiment is following:
1) slag of coal gasification, clay, glass powder are mixed the back and dropped in the ball mill ball milling 40 minutes;
2) use sieve aperture to sieve as the vibratory screening apparatus of 0.125mm;
3) by quality ratio, the water with screen underflow adding 20% stirs;
4) the material granulating and forming in shaper after stirring is about feed particles diameter 10mm, with the raw material natural air drying.
5) raw material haydite ball embryo is sent into roasting in the sintering cellar for storing things, 1100 ℃ of sintering temperatures, roasting time 1.2 hours finishes the back below stove internal cooling to 600 ℃, and last kiln discharge, naturally cooling are processed the slag of coal gasification ceramic product.
Embodiment 3
In the present embodiment, the raw material weight proportioning is:
Slag of coal gasification 90%;
Clay 5%;
CaO 5％。
The haydite working method of present embodiment is following:
1) slag of coal gasification, clay, CaO are mixed the back and dropped in the ball mill ball milling 30 minutes;
2) use sieve aperture to sieve as the vibratory screening apparatus of 0.125mm;
3) by quality ratio, the water with screen underflow adding 10% stirs;
4) the material granulating and forming in shaper after stirring is about feed particles diameter 10mm, with the raw material natural air drying.
5) raw material haydite ball embryo is sent into roasting in the sintering cellar for storing things, 1000 ℃ of sintering temperatures, roasting time 1.2 hours finishes the back below stove internal cooling to 600 ℃, and last kiln discharge, naturally cooling are processed the slag of coal gasification ceramic product.
Embodiment 4
In the present embodiment, the raw material weight proportioning is:
Slag of coal gasification 80%;
Clay 15%;
CaSO4 5％。
The haydite working method of present embodiment is following:
1) slag of coal gasification, clay, CaSO4 are mixed the back and dropped in the ball mill ball milling 45 minutes;
2) use sieve aperture to sieve as the vibratory screening apparatus of 0.125mm;
3) by quality ratio, the water with screen underflow adding 10% stirs;
4) the material granulating and forming in shaper after stirring, particle diameter is 5mm, natural air drying after the granulation obtains haydite ball embryo;
5) haydite ball embryo is sent into roasting in the sintering cellar for storing things, 900 ℃ of sintering temperatures, roasting time 1.4 hours finishes the back below stove internal cooling to 600 ℃, and last kiln discharge, naturally cooling are processed the coal gasifier dregs porcelain granule.
Embodiment 5
In the present embodiment, the raw material weight proportioning is:
Slag of coal gasification 95%;
Glass powder 5%.
The haydite working method of present embodiment is following:
1) slag of coal gasification and glass powder are mixed the back and dropped in the ball mill ball milling 30 minutes;
2) use sieve aperture to sieve as the vibratory screening apparatus of 0.125mm;
3) by quality ratio, the water with screen underflow adding 10% stirs;
4) the material granulating and forming in shaper after stirring, particle diameter is 15mm, natural air drying after the granulation obtains haydite ball embryo;
5) haydite ball embryo is sent into roasting in the sintering cellar for storing things, 1300 ℃ of sintering temperatures, roasting time 1.0 hours finishes the back below stove internal cooling to 600 ℃, and last kiln discharge, naturally cooling are processed the coal gasifier dregs porcelain granule.
Embodiment 6
In the present embodiment, the raw material weight proportioning is:
Slag of coal gasification 80%;
Clay 5%;
MgO 15％。
The haydite working method of present embodiment is following:
1) slag of coal gasification, clay, MgO are mixed the back and dropped in the ball mill ball milling 45 minutes;
2) use sieve aperture to sieve as the vibratory screening apparatus of 0.125mm;
3) by quality ratio, the water with screen underflow adding 20% stirs;
4) the material granulating and forming in shaper after stirring, particle diameter is 5mm, natural air drying after the granulation obtains haydite ball embryo;
5) haydite ball embryo is sent into roasting in the sintering cellar for storing things, 1300 ℃ of sintering temperatures, roasting time 1.4 hours finishes the back below stove internal cooling to 600 ℃, and last kiln discharge, naturally cooling are processed the coal gasifier dregs porcelain granule.
Embodiment 7
In the present embodiment, the raw material weight proportioning is:
Slag of coal gasification 80%;
Clay 5%;
NaO 15％。
The haydite working method of present embodiment is following:
1) slag of coal gasification, clay, NaO are mixed the back and dropped in the ball mill ball milling 45 minutes;
2) use sieve aperture to sieve as the vibratory screening apparatus of 0.125mm;
3) by quality ratio, the water with screen underflow adding 20% stirs;
4) the material granulating and forming in shaper after stirring, particle diameter is 5mm, natural air drying after the granulation obtains haydite ball embryo;
5) haydite ball embryo is sent into roasting in the sintering cellar for storing things, 1300 ℃ of sintering temperatures, roasting time 1.4 hours finishes the back below stove internal cooling to 600 ℃, and last kiln discharge, naturally cooling are processed the coal gasifier dregs porcelain granule.
Claims (3)
1. a material prescription of making the gasifier slag haydite is characterized in that, according to weight percent, comprises following component:
Slag of coal gasification: 80-95%; Clay: 0-15%; Fusing assistant: 5-15%; Said solubility promoter is CaO, MgO, NaO, CaSO4 or glass powder.
2. the haydite working method based on the said prescription of claim 1 is characterized in that, may further comprise the steps:
1) according to weight percent, 80-95% slag of coal gasification, 0-15% clay and 5-15% fusing assistant were dropped in the ball mill ball milling 30-45 minute, form mixture;
2) use sieve aperture to sieve to above mixture as the vibratory screening apparatus of 0.125mm;
3) screen underflow is added entry and stir, the amount that adds entry is 10%～20% of a mixture quality, uses the shaper granulation again, and particle diameter is 5mm～15mm, and natural air drying after the granulation obtains haydite ball embryo;
4) the above haydite ball embryo that obtains is carried out roasting, sintering temperature is 900 ℃-1300 ℃, and roasting time is 1.0-1.4 hour; Roasting finishes the back below stove internal cooling to 600 ℃, and last kiln discharge, naturally cooling obtain the coal gasifier dregs porcelain granule.
3. haydite working method according to claim 2 is characterized in that, in the step 4), adopts sintering oven or rotary furnace that haydite ball embryo is carried out roasting.
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| CN2011102379663A CN102372496A (en) | 2011-08-18 | 2011-08-18 | Material formula for preparing gasification furnace slag ceramisite and production method of ceramisite |
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| CN2011102379663A CN102372496A (en) | 2011-08-18 | 2011-08-18 | Material formula for preparing gasification furnace slag ceramisite and production method of ceramisite |
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Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104774023A (en) * | 2015-03-31 | 2015-07-15 | 北京大学包头创新研究院 | Lightweight ceramisite prepared from coal ashes and gasification slag as well as preparation method and application thereof |
| CN105838261A (en) * | 2016-04-22 | 2016-08-10 | 长安大学 | Polishing and grinding material and preparation method thereof |
| CN107337400A (en) * | 2017-06-15 | 2017-11-10 | 长安大学 | Levigate thick slag cement base material modelled after an antique of coal gasification and its preparation method and application |
| CN107641537A (en) * | 2017-09-28 | 2018-01-30 | 陕西融泰能源控股有限公司 | A kind of slag of coal gasification purifying process and the system for realizing its technique |
| CN107855103A (en) * | 2017-03-15 | 2018-03-30 | 吉林大学 | The method of sorbing material and obtained sorbing material are prepared using coal gasification fine slag |
| CN107855104A (en) * | 2017-03-16 | 2018-03-30 | 吉林大学 | The thick slag of coal gasification prepares the method for complex mesoporous material and obtained mesoporous material |
| CN108464221A (en) * | 2018-06-05 | 2018-08-31 | 新疆天物生态科技股份有限公司 | Utilize gasifier slag production salt affected soil plantation improvement matrix and preparation method thereof |
| CN108840702A (en) * | 2018-08-10 | 2018-11-20 | 新疆天物生态科技股份有限公司 | A kind of haydite and preparation method thereof containing gasifier slag |
| CN108997044A (en) * | 2018-08-16 | 2018-12-14 | 新疆天物生态科技股份有限公司 | A kind of composite microbe fertilizer and preparation method thereof containing gasifier slag and sludge |
| CN109133970A (en) * | 2018-09-30 | 2019-01-04 | 新疆天业（集团）有限公司 | A method of haydite is manufactured with CFB fly ash, gasifier slag |
| CN110100696A (en) * | 2018-02-01 | 2019-08-09 | 广东清大同科环保技术有限公司 | A kind of gasification fine slag plantation sand and preparation method thereof |
| CN110294633A (en) * | 2018-03-23 | 2019-10-01 | 国家能源投资集团有限责任公司 | The method that porous ceramics and gasification slag prepare porous ceramics |
| CN110759710A (en) * | 2018-07-27 | 2020-02-07 | 广东清大同科环保技术有限公司 | Gasified slag baked brick and preparation method thereof |
| CN110963783A (en) * | 2019-12-26 | 2020-04-07 | 中建西部建设股份有限公司 | Sludge-based high-strength ceramsite and preparation method thereof |
| CN111606692A (en) * | 2020-04-30 | 2020-09-01 | 西安建筑科技大学 | A kind of ceramsite proppant prepared from industrial waste gasification slag and preparation process |
| CN111875274A (en) * | 2020-07-16 | 2020-11-03 | 国家能源集团宁夏煤业有限责任公司 | Method for preparing ceramsite and ceramsite prepared by same |
| CN114890702A (en) * | 2022-05-20 | 2022-08-12 | 宁夏大学 | Method for preparing high-strength ceramsite by self-sintering coal gasification fine slag |
| CN117142875A (en) * | 2022-05-23 | 2023-12-01 | 宁夏大学 | Porous gas slag-silicon carbide composite ceramic support and preparation method thereof |
| CN117658667A (en) * | 2022-08-22 | 2024-03-08 | 国家能源投资集团有限责任公司 | Ceramsite prepared from gasified slag and preparation method thereof |
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| CN104774023A (en) * | 2015-03-31 | 2015-07-15 | 北京大学包头创新研究院 | Lightweight ceramisite prepared from coal ashes and gasification slag as well as preparation method and application thereof |
| CN105838261A (en) * | 2016-04-22 | 2016-08-10 | 长安大学 | Polishing and grinding material and preparation method thereof |
| CN105838261B (en) * | 2016-04-22 | 2018-04-17 | 长安大学 | A kind of polishing grinding material and preparation method thereof |
| CN107855103A (en) * | 2017-03-15 | 2018-03-30 | 吉林大学 | The method of sorbing material and obtained sorbing material are prepared using coal gasification fine slag |
| CN107855103B (en) * | 2017-03-15 | 2019-10-11 | 吉林大学 | Method for preparing adsorption material from coal gasification fine slag and prepared adsorption material |
| CN107855104A (en) * | 2017-03-16 | 2018-03-30 | 吉林大学 | The thick slag of coal gasification prepares the method for complex mesoporous material and obtained mesoporous material |
| CN107855104B (en) * | 2017-03-16 | 2020-04-07 | 吉林大学 | Method for preparing composite mesoporous material from coal gasification coarse slag and prepared mesoporous material |
| CN107337400A (en) * | 2017-06-15 | 2017-11-10 | 长安大学 | Levigate thick slag cement base material modelled after an antique of coal gasification and its preparation method and application |
| CN107337400B (en) * | 2017-06-15 | 2019-12-17 | 长安大学 | Ground coal gasification coarse slag cement-based antique material and its preparation method and application |
| CN107641537A (en) * | 2017-09-28 | 2018-01-30 | 陕西融泰能源控股有限公司 | A kind of slag of coal gasification purifying process and the system for realizing its technique |
| CN110100696A (en) * | 2018-02-01 | 2019-08-09 | 广东清大同科环保技术有限公司 | A kind of gasification fine slag plantation sand and preparation method thereof |
| CN110294633A (en) * | 2018-03-23 | 2019-10-01 | 国家能源投资集团有限责任公司 | The method that porous ceramics and gasification slag prepare porous ceramics |
| CN110294633B (en) * | 2018-03-23 | 2021-11-09 | 国家能源投资集团有限责任公司 | Porous ceramic and method for preparing porous ceramic from gasified slag |
| CN108464221A (en) * | 2018-06-05 | 2018-08-31 | 新疆天物生态科技股份有限公司 | Utilize gasifier slag production salt affected soil plantation improvement matrix and preparation method thereof |
| CN110759710A (en) * | 2018-07-27 | 2020-02-07 | 广东清大同科环保技术有限公司 | Gasified slag baked brick and preparation method thereof |
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| CN110963783A (en) * | 2019-12-26 | 2020-04-07 | 中建西部建设股份有限公司 | Sludge-based high-strength ceramsite and preparation method thereof |
| CN111606692A (en) * | 2020-04-30 | 2020-09-01 | 西安建筑科技大学 | A kind of ceramsite proppant prepared from industrial waste gasification slag and preparation process |
| CN111875274A (en) * | 2020-07-16 | 2020-11-03 | 国家能源集团宁夏煤业有限责任公司 | Method for preparing ceramsite and ceramsite prepared by same |
| CN114890702A (en) * | 2022-05-20 | 2022-08-12 | 宁夏大学 | Method for preparing high-strength ceramsite by self-sintering coal gasification fine slag |
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Application publication date: 20120314 |