CN106565166A - Process for preparing cementing material from household garbage incineration fly ash - Google Patents
Process for preparing cementing material from household garbage incineration fly ash Download PDFInfo
- Publication number
- CN106565166A CN106565166A CN201610952484.9A CN201610952484A CN106565166A CN 106565166 A CN106565166 A CN 106565166A CN 201610952484 A CN201610952484 A CN 201610952484A CN 106565166 A CN106565166 A CN 106565166A
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- parts
- mass
- garbage incineration
- water
- fly ash
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- 239000010881 fly ash Substances 0.000 title claims abstract description 34
- 239000010813 municipal solid waste Substances 0.000 title claims abstract description 28
- 239000000463 material Substances 0.000 title claims abstract description 20
- 238000004519 manufacturing process Methods 0.000 title abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 20
- 238000002156 mixing Methods 0.000 claims abstract description 10
- 239000000203 mixture Substances 0.000 claims abstract description 9
- 238000003756 stirring Methods 0.000 claims abstract description 9
- 239000003814 drug Substances 0.000 claims abstract description 6
- 238000001035 drying Methods 0.000 claims abstract description 6
- 239000003513 alkali Substances 0.000 claims abstract description 5
- 238000000227 grinding Methods 0.000 claims abstract description 5
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims description 18
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 17
- 238000000034 method Methods 0.000 claims description 15
- 239000011230 binding agent Substances 0.000 claims description 7
- 239000003795 chemical substances by application Substances 0.000 claims description 4
- 238000002203 pretreatment Methods 0.000 claims description 4
- 239000004115 Sodium Silicate Substances 0.000 claims description 3
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 3
- 229910052911 sodium silicate Inorganic materials 0.000 claims description 3
- 239000000843 powder Substances 0.000 claims description 2
- 239000003755 preservative agent Substances 0.000 claims description 2
- 230000002335 preservative effect Effects 0.000 claims description 2
- 238000007569 slipcasting Methods 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 claims 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims 1
- 239000011575 calcium Substances 0.000 claims 1
- 229910052791 calcium Inorganic materials 0.000 claims 1
- 238000012423 maintenance Methods 0.000 claims 1
- 230000007613 environmental effect Effects 0.000 abstract description 4
- 238000003912 environmental pollution Methods 0.000 abstract description 2
- 239000002689 soil Substances 0.000 abstract description 2
- 238000004056 waste incineration Methods 0.000 abstract description 2
- 238000005303 weighing Methods 0.000 abstract description 2
- 239000002440 industrial waste Substances 0.000 abstract 1
- 238000007873 sieving Methods 0.000 abstract 1
- 238000012360 testing method Methods 0.000 description 12
- 239000000428 dust Substances 0.000 description 8
- 238000004064 recycling Methods 0.000 description 4
- 229910001385 heavy metal Inorganic materials 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- YLQBMQCUIZJEEH-UHFFFAOYSA-N Furan Chemical compound C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 2
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 2
- 239000000920 calcium hydroxide Substances 0.000 description 2
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052793 cadmium Inorganic materials 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 229910052745 lead Inorganic materials 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/021—Ash cements, e.g. fly ash cements ; Cements based on incineration residues, e.g. alkali-activated slags from waste incineration ; Kiln dust cements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles
- B28B11/24—Apparatus or processes for treating or working the shaped or preshaped articles for curing, setting or hardening
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/20—Mortars, concrete or artificial stone characterised by specific physical values for the density
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Combustion & Propulsion (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention relates to a process for preparing a cementing material from household garbage incineration fly ash, which comprises the steps of taking 80-100 parts by mass of household garbage incineration fly ash, 2-4 parts by mass of pretreatment medicament alkali, adding 50-70 parts by mass of water, reacting for 0.5-2 hours at 20-50 ℃, drying, grinding and sieving to obtain pretreated garbage incineration fly ash; weighing 60-80 parts by mass of the pretreated waste incineration fly ash, 20-40 parts by mass of the admixture and 2-8 parts by mass of the excitant, and uniformly mixing; adding 40-60 parts by mass of water, and stirring to obtain a mixed material; injecting into a mould and compacting; placing the grouted mould in a constant-temperature climate curing box at the temperature of 20-60 ℃ for curing for 12-48 hours, and then removing the mould; and then placing the mixture in a water curing box at the temperature of 20-60 ℃ for curing for 21-28 days to obtain the cementing material. The invention can utilize industrial waste according to local conditions, effectively protect water and soil resources and control environmental pollution. Has great environmental, economic and social benefits.
Description
Technical field
The present invention relates to a kind of disposal of resources of solid waste, specifically a kind of domestic garbage incineration flyash prepares glue
The technique of gel material.
Background technology
In incineration process of domestic garbage, in the material that heat recovery system, flue gas purification system are collected, i.e. consumer waste incineration
Flying dust, often accounts for being incinerated the 5%～10% of quantity of refuse, or even 10%～15%.Flying dust typically in canescence or Dark grey,
Particle diameter is less than 300 μm, moisture content 5%～15%, and clinker ignition loss is 10%～15%, particle shape variation.Flying dust is to environment
The pollution for bringing mainly has the pollution of heavy metal pollution, bioxin and dissolving salt pollution.Main Heavy Metals Pollution element in flying dust
For Pb, Cd and Ni.As the reasons such as waste component, ventilation cause to burn incomplete in Refuse Incineration Process, in fly ash granule
It is middle to be enriched with a certain amount of hypertoxic bioxin and furan (PCDD/DFs) class organic pollution, in the fortune of domestic garbage incineration flyash
In defeated, storage, process and disposal, ecological environment structure will be threatened, human health will be worked the mischief.
Domestic garbage incineration flyash recycling is to solve its unique channel for processing a difficult problem.Domestic garbage incineration flyash
Recycling must pay attention in terms of the utilization of resources and environmental effect two.In current research, house refuse is burnt
The recycling for burning flying dust needs to consider 3 each factors：(1) performance and cost.Good performance and it is low into
Originally it is the essential condition of recycling and marketization popularization.(2) flexibility (adaptability) of operation.This is mainly by the physicochemical properties of flying dust
Determine.(3) meet environmental standard and there are long-time stability.
The main component of domestic garbage incineration flyash belongs to CaO-SiO2-Al2O3-Fe2O3System, adds a small amount of admixture
Jing after medicament is excited, a kind of good Binder Materials of hydraulicity are obtained, while its own hydrated product and alkaline environment can
The heavy metal effectively fixed in flying dust, meets environmental requirement, therefore can be prepared into one with domestic garbage incineration flyash
Plant economic and environment-friendly ecological functions material.
The content of the invention
It is an object of the invention to overcome the deficiencies in the prior art, propose that a kind of domestic garbage incineration flyash prepares gelling material
The technique of material, the present invention utilize domestic garbage incineration flyash and breeze production novel ecological material, realize " turning waste into wealth ".Tool
There are great environment, economic and social benefit.
The technical scheme is that：A kind of domestic garbage incineration flyash prepares the technique of Binder Materials, and concrete steps are such as
Under：
(1) 80～100 mass parts of domestic garbage incineration flyash, 2～4 mass parts of pre-treatment medicaments alkali, are taken, 50～70 are added water
Mass parts, after reacting 0.5～2h at 20～50 DEG C, drying, grinding are sieved to obtain incineration of refuse flyash after pretreatment；
(2) 60～80 mass parts of incineration of refuse flyash, 20～40 mass parts of admixture (butt) after, weighing pretreatment, excite
2～8 mass parts of agent, mix homogeneously；
(3) 40～60 mass parts water, are subsequently adding, are placed in blender and are stirred to obtain batch mixing；
(4) batch mixing is injected into jolt ramming in mould again,；
(5) the mould for, finishing slip casting covers last layer preservative film, is placed in 20～60 DEG C of constant temperature weather curing box and conserves
Form removal after 12～48 hours；
(6), the block after form removal obtains Binder Materials after being placed in 20～60 DEG C of water curing case and conserving 21～28d.
Pre-treatment medicaments alkali described in preferred steps (1) is the one kind in calcium hydroxide, sodium hydroxide or potassium hydroxide
Or it is several.
Grinding in preferred steps (1) is sieved to cross 100 mesh sieves.
Admixture described in preferred steps (2) is natural ore powder.
Exciting agent described in preferred steps (2) is one or more in sodium silicate, sodium hydroxide or potassium hydroxide.
Stir speed (S.S.) described in preferred steps (3) is 50～200 revs/min, and mixing time is 20～30min.
Jolt ramming frequency described in preferred steps (4) is 20～50 beats/min, and the jolt ramming time is 2～6min.
Beneficial effect：
Using domestic garbage incineration flyash and breeze, traditional handicraft is replaced using Binder Materials excitation technique, produced new
Ecomaterial, can not only effectively utilize trade waste (such as：Incineration of refuse flyash, breeze etc.), effective protection water and soil resources,
Control environmental pollution, moreover it is possible to develop a circular economy.With great environment, economic and social benefit.
Specific embodiment
Embodiment 1：
Take 100 parts of domestic garbage incineration flyash to be placed in container, plus 4 parts of sodium hydroxide and 70 parts of water, mix, in 50
DEG C reaction the 0.5h times after complete pretreatment, domestic garbage incineration flyash after pretreatment is stand-by in 105 DEG C of drying.Take pretreatment
60 parts of domestic garbage incineration flyash, 40 parts of breeze, 4 parts of sodium hydroxide afterwards, are placed in container and mix, plus 40 parts of water, with 200 turns/
Minute frequency stirring 20min, injects in mould with 50 beats/min of frequency jolt ramming 2min after batch mixing stirring.Mould sealer is placed in 60
DEG C thermostatic curing case in conserve the 12h times after form removal, the block part after form removal be placed in 60 DEG C of water curing case conserve 21 days after
Obtain flying dust based cementitious material.In embodiment 1, the Testing index of test specimen enters shown in subscript.
Test specimen Testing index in 1 embodiment 1 of table
Embodiment 2：
Take 80 parts of domestic garbage incineration flyash to be placed in container, plus 2.5 parts of calcium hydroxide and 50 parts of water, mix, in
Pretreatment is completed after 40 DEG C of reaction 1h times, domestic garbage incineration flyash after pretreatment is stand-by in 105 DEG C of drying.Take pretreatment
71 parts of domestic garbage incineration flyash, 28 parts of breeze, 8 parts of sodium silicate are placed in container and mix afterwards, plus 51 parts of water, with 120 revs/min
Frequency stirs 25min, injects in mould with 40 beats/min of frequency jolt ramming 3min after batch mixing stirring.Mould sealer is placed in 35 DEG C
Form removal after the 36h times is conserved in thermostatic curing case, the block part after form removal is placed in after conserving 25 days in 30 DEG C of water curing case and must fly
Grey based cementitious material.In embodiment 1, the Testing index of test specimen enters shown in subscript.
Test specimen Testing index in 2 embodiment 1 of table
Embodiment 3：
Take 90 parts of domestic garbage incineration flyash to be placed in container, plus 3 parts of potassium hydroxide and 60 parts of water, mix, in 20
DEG C reaction the 2h times after complete pretreatment, domestic garbage incineration flyash after pretreatment is stand-by in 105 DEG C of drying.After taking pretreatment
80 parts of domestic garbage incineration flyash, 20 parts of breeze, 2 parts of potassium hydroxide are placed in container and mix, plus 60 parts of water, with 50 revs/min
Frequency stirs 30min, injects in mould with 20 beats/min of frequency jolt ramming 6min after batch mixing stirring.Mould sealer is placed in 20 DEG C
Form removal after the 48h times is conserved in thermostatic curing case, the block part after form removal is placed in after conserving 28 days in 20 DEG C of water curing case and must fly
Grey based cementitious material.In embodiment 1, the Testing index of test specimen enters shown in subscript.
Test specimen Testing index in 3 embodiment 1 of table
Claims (7)
1. a kind of domestic garbage incineration flyash prepares the technique of Binder Materials, comprises the following steps that：
(1), 80～100 mass parts of domestic garbage incineration flyash, 2～4 mass parts of pre-treatment medicaments alkali are taken, and add water 50～70 mass
Part, after reacting 0.5～2h at 20～50 DEG C, drying, grinding are sieved to obtain incineration of refuse flyash after pretreatment；
(2), 60～80 mass parts of incineration of refuse flyash, 20～40 mass parts of admixture, 2～8 mass of exciting agent after pretreatment is weighed
Part, mix homogeneously；
(3) 40～60 mass parts water, are subsequently adding, are placed in blender and are stirred to obtain batch mixing；
(4) batch mixing is injected into jolt ramming in mould again,；
(5) the mould that slip casting is finished is coverd with into preservative film, maintenance 12～48 in 20～60 DEG C of constant temperature weather curing box is placed in little
When after form removal；
(6), the block after form removal obtains Binder Materials after being placed in 20～60 DEG C of water curing case and conserving 21～28d.
2. technique according to claim 1, it is characterised in that the pre-treatment medicaments alkali described in step (1) is hydroxide
One or more in calcium, sodium hydroxide or potassium hydroxide.
3. technique according to claim 1, it is characterised in that the grinding in step (1) is sieved to cross 100 mesh sieves.
4. technique according to claim 1, it is characterised in that the admixture described in step (2) is natural ore powder.
5. technique according to claim 1, it is characterised in that the exciting agent described in step (2) is sodium silicate, hydroxide
One or more in sodium or potassium hydroxide.
6. technique according to claim 1, it is characterised in that the stir speed (S.S.) described in step (3) is 50～200 revs/min
Clock, mixing time are 20～30min.
7. technique according to claim 1, it is characterised in that the jolt ramming frequency described in step (4) is 20～50 beats/min
Clock, jolt ramming time are 2～6min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610952484.9A CN106565166A (en) | 2016-10-27 | 2016-10-27 | Process for preparing cementing material from household garbage incineration fly ash |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610952484.9A CN106565166A (en) | 2016-10-27 | 2016-10-27 | Process for preparing cementing material from household garbage incineration fly ash |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106565166A true CN106565166A (en) | 2017-04-19 |
Family
ID=58535326
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610952484.9A Pending CN106565166A (en) | 2016-10-27 | 2016-10-27 | Process for preparing cementing material from household garbage incineration fly ash |
Country Status (1)
| Country | Link |
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| CN (1) | CN106565166A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108623199A (en) * | 2018-06-28 | 2018-10-09 | 天津市建筑材料科学研究院有限公司 | A method of preparing geo-polymer cementitious material and Geopolymer mortar |
| CN109092851A (en) * | 2018-07-27 | 2018-12-28 | 南京工业大学 | Process for gelling and solidifying heavy metal in incineration fly ash of household garbage by doping mineral powder |
| CN109553345A (en) * | 2018-12-10 | 2019-04-02 | 上海应用技术大学 | A kind of preparation method with the modified concrete processed of domestic garbage incineration flyash |
| CN111548062A (en) * | 2020-04-26 | 2020-08-18 | 南京工业大学 | Process for preparing cementing material from calcium sulfate sludge |
| CN113231447A (en) * | 2021-05-25 | 2021-08-10 | 重庆建工住宅建设有限公司 | Method for efficiently solidifying and stabilizing domestic garbage incineration fly ash by using alkali slag cement |
| CN113831037A (en) * | 2021-09-17 | 2021-12-24 | 深圳大学 | Cementing material and preparation method thereof |
| CN113983466A (en) * | 2021-11-01 | 2022-01-28 | 中国电力工程顾问集团华东电力设计院有限公司 | Method for treating fly ash by utilizing household garbage-silicon-aluminum material in cooperation with incineration ash |
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| CN101397198A (en) * | 2008-10-30 | 2009-04-01 | 上海大学 | Composite blending material for concrete and preparation method thereof |
| CN102303036A (en) * | 2011-07-06 | 2012-01-04 | 东江环保股份有限公司 | Alkali activated solidification and stabilization treatment method of refuse incineration fly ash |
| CN104671715A (en) * | 2015-01-26 | 2015-06-03 | 广东源盛生态环保科技有限公司 | Method for preparing light-weight protection wall by utilizing flying ash generated after garbage power |
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- 2016-10-27 CN CN201610952484.9A patent/CN106565166A/en active Pending
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| CN101397198A (en) * | 2008-10-30 | 2009-04-01 | 上海大学 | Composite blending material for concrete and preparation method thereof |
| CN102303036A (en) * | 2011-07-06 | 2012-01-04 | 东江环保股份有限公司 | Alkali activated solidification and stabilization treatment method of refuse incineration fly ash |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108623199A (en) * | 2018-06-28 | 2018-10-09 | 天津市建筑材料科学研究院有限公司 | A method of preparing geo-polymer cementitious material and Geopolymer mortar |
| CN108623199B (en) * | 2018-06-28 | 2021-03-12 | 天津市建筑材料科学研究院有限公司 | Method for preparing geopolymer gelled material and geopolymer mortar |
| CN109092851A (en) * | 2018-07-27 | 2018-12-28 | 南京工业大学 | Process for gelling and solidifying heavy metal in incineration fly ash of household garbage by doping mineral powder |
| CN109553345A (en) * | 2018-12-10 | 2019-04-02 | 上海应用技术大学 | A kind of preparation method with the modified concrete processed of domestic garbage incineration flyash |
| CN111548062A (en) * | 2020-04-26 | 2020-08-18 | 南京工业大学 | Process for preparing cementing material from calcium sulfate sludge |
| CN113231447A (en) * | 2021-05-25 | 2021-08-10 | 重庆建工住宅建设有限公司 | Method for efficiently solidifying and stabilizing domestic garbage incineration fly ash by using alkali slag cement |
| CN113831037A (en) * | 2021-09-17 | 2021-12-24 | 深圳大学 | Cementing material and preparation method thereof |
| CN113983466A (en) * | 2021-11-01 | 2022-01-28 | 中国电力工程顾问集团华东电力设计院有限公司 | Method for treating fly ash by utilizing household garbage-silicon-aluminum material in cooperation with incineration ash |
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Application publication date: 20170419 |