CN106187268B - Process for preparing ultra-light filler from waste incineration fly ash - Google Patents
Process for preparing ultra-light filler from waste incineration fly ash Download PDFInfo
- Publication number
- CN106187268B CN106187268B CN201610530312.2A CN201610530312A CN106187268B CN 106187268 B CN106187268 B CN 106187268B CN 201610530312 A CN201610530312 A CN 201610530312A CN 106187268 B CN106187268 B CN 106187268B
- Authority
- CN
- China
- Prior art keywords
- filler
- heavy metals
- incineration
- fly ash
- stabilizer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000000945 filler Substances 0.000 title claims abstract description 44
- 239000010881 fly ash Substances 0.000 title claims abstract description 36
- 238000004056 waste incineration Methods 0.000 title abstract description 5
- 238000004519 manufacturing process Methods 0.000 title abstract 2
- 229910001385 heavy metal Inorganic materials 0.000 claims abstract description 39
- 239000003381 stabilizer Substances 0.000 claims abstract description 27
- 239000000463 material Substances 0.000 claims abstract description 24
- 238000000034 method Methods 0.000 claims abstract description 19
- 239000002994 raw material Substances 0.000 claims abstract description 16
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 10
- 238000005245 sintering Methods 0.000 claims abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 8
- 235000007164 Oryza sativa Nutrition 0.000 claims abstract description 6
- 235000009566 rice Nutrition 0.000 claims abstract description 6
- 240000007594 Oryza sativa Species 0.000 claims abstract 2
- 150000001875 compounds Chemical class 0.000 claims description 26
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 18
- 238000002156 mixing Methods 0.000 claims description 13
- 229910021536 Zeolite Inorganic materials 0.000 claims description 9
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims description 9
- 239000000395 magnesium oxide Substances 0.000 claims description 9
- 239000010457 zeolite Substances 0.000 claims description 9
- 238000000227 grinding Methods 0.000 claims description 7
- 229910000403 monosodium phosphate Inorganic materials 0.000 claims description 7
- 235000019799 monosodium phosphate Nutrition 0.000 claims description 7
- AJPJDKMHJJGVTQ-UHFFFAOYSA-M sodium dihydrogen phosphate Chemical compound [Na+].OP(O)([O-])=O AJPJDKMHJJGVTQ-UHFFFAOYSA-M 0.000 claims description 7
- 238000001816 cooling Methods 0.000 claims description 6
- 238000001035 drying Methods 0.000 claims description 5
- 239000010903 husk Substances 0.000 claims description 5
- 238000007873 sieving Methods 0.000 claims description 4
- 239000004615 ingredient Substances 0.000 claims description 2
- 239000008188 pellet Substances 0.000 claims description 2
- 230000035484 reaction time Effects 0.000 claims description 2
- 238000003756 stirring Methods 0.000 claims description 2
- 238000009835 boiling Methods 0.000 claims 1
- 239000002689 soil Substances 0.000 claims 1
- 239000004575 stone Substances 0.000 claims 1
- 238000002386 leaching Methods 0.000 abstract description 11
- 230000008901 benefit Effects 0.000 abstract description 5
- 238000010304 firing Methods 0.000 abstract description 5
- 239000010902 straw Substances 0.000 abstract description 2
- 239000002699 waste material Substances 0.000 abstract description 2
- 239000002023 wood Substances 0.000 abstract description 2
- 239000002131 composite material Substances 0.000 abstract 1
- 239000000428 dust Substances 0.000 description 9
- 238000002474 experimental method Methods 0.000 description 9
- 239000000203 mixture Substances 0.000 description 9
- 239000004927 clay Substances 0.000 description 6
- 241000209094 Oryza Species 0.000 description 4
- 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 description 3
- SEGLCEQVOFDUPX-UHFFFAOYSA-N di-(2-ethylhexyl)phosphoric acid Chemical compound CCCCC(CC)COP(O)(=O)OCC(CC)CCCC SEGLCEQVOFDUPX-UHFFFAOYSA-N 0.000 description 3
- 239000001257 hydrogen Substances 0.000 description 3
- 229910052739 hydrogen Inorganic materials 0.000 description 3
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 3
- 239000011148 porous material Substances 0.000 description 3
- 229910052708 sodium Inorganic materials 0.000 description 3
- 239000011734 sodium Substances 0.000 description 3
- HGUFODBRKLSHSI-UHFFFAOYSA-N 2,3,7,8-tetrachloro-dibenzo-p-dioxin Chemical compound O1C2=CC(Cl)=C(Cl)C=C2OC2=C1C=C(Cl)C(Cl)=C2 HGUFODBRKLSHSI-UHFFFAOYSA-N 0.000 description 2
- 238000009395 breeding Methods 0.000 description 2
- 230000001488 breeding effect Effects 0.000 description 2
- 235000013339 cereals Nutrition 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 244000005700 microbiome Species 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 239000002956 ash Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 229910052793 cadmium Inorganic materials 0.000 description 1
- 239000003818 cinder Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 150000002240 furans Chemical class 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910052745 lead Inorganic materials 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000002957 persistent organic pollutant Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 231100000004 severe toxicity Toxicity 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 230000003519 ventilatory effect Effects 0.000 description 1
- 229910052725 zinc Inorganic materials 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
- C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
- C04B38/009—Porous or hollow ceramic granular materials, e.g. microballoons
-
- 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
- C04B33/00—Clay-wares
- C04B33/02—Preparing or treating the raw materials individually or as batches
- C04B33/13—Compounding ingredients
- C04B33/132—Waste materials; Refuse; Residues
- C04B33/135—Combustion residues, e.g. fly ash, incineration waste
- C04B33/1355—Incineration residues
-
- 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
- C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
- C04B38/06—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by burning-out added substances by burning natural expanding materials or by sublimating or melting out added substances
- C04B38/063—Preparing or treating the raw materials individually or as batches
- C04B38/0635—Compounding ingredients
- C04B38/0645—Burnable, meltable, sublimable materials
- C04B38/0675—Vegetable refuse; Cellulosic materials, e.g. wood chips, cork, peat, paper
-
- 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
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3205—Alkaline earth oxides or oxide forming salts thereof, e.g. beryllium oxide
- C04B2235/3206—Magnesium oxides or oxide-forming salts thereof
-
- 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
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/34—Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3427—Silicates other than clay, e.g. water glass
- C04B2235/3463—Alumino-silicates other than clay, e.g. mullite
- C04B2235/3472—Alkali metal alumino-silicates other than clay, e.g. spodumene, alkali feldspars such as albite or orthoclase, micas such as muscovite, zeolites such as natrolite
-
- 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
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
- C04B2235/74—Physical characteristics
- C04B2235/77—Density
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Combustion & Propulsion (AREA)
- Environmental & Geological Engineering (AREA)
- Dispersion Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention relates to a process for preparing an ultralight filler by using waste incineration fly ash. The waste incineration fly ash is used as a raw material, shale or fly ash is used as an auxiliary material, wood chips, straws or rice hulls are used as a pore-forming agent, a small amount of composite heavy metal stabilizer is added, and the materials are mixed according to a certain proportion, stirred by adding water, reacted in a water bath, granulated, dried and sintered to prepare the ultra-light filler with low heavy metal leaching rate. The firing of the filler adopts a rapid sintering system without a preheating stage, namely the material ball is suddenly raised from room temperature to the sintering temperature and does not undergo the processes of uniform temperature rise and preheating midway. The process has the advantages of short time consumption and high efficiency, and the prepared filler is light, porous and high in strength. Compared with the conventional waste incineration fly ash treatment and disposal mode, the method has the advantages of low operation cost, short disposal period, less secondary pollution, high waste utilization rate and the like.
Description
Technical field
The present invention relates to a kind of process for reclaiming of dangerous solid waste, and in particular to a kind of incineration of refuse flyash preparation
The technique of ultralight filler.
Background technique
Waste incineration can generate a certain amount of cinder from refuse incineration, wherein collecting in heat recovery system, flue gas purification system
Substance, i.e. incineration of refuse flyash often accounts for be incinerated quantity of refuse 5%~10% or even 10%~15%.Flying dust is general
In canescence or Dark grey, partial size is less than 300 μm, moisture content 5%~15%, heat cut down according to the circumstance rate be 34%~51%, particle shape
Diversification.Flying dust mainly has heavy metal pollution, dioxin contamination and dissolving salt to pollute to the pollution of environment bring.Master in flying dust
Wanting vertical distribution is Pb, Cd, Hg and Zn.It causes to burn due to waste component, ventilatory capacity etc. in Refuse Incineration Process
It burns not exclusively, the dioxin and furans (PCDD/DFs) class organic pollutant of a certain amount of severe toxicity is enriched in fly ash granule, flying
Ash transport, storage, processing and disposition are that these pollutants will constitute a threat to ecological environment, are caused damages to human health.
Flying dust resource utilization is to solve the unique channel of flying dust processing problem.The resource utilization of flying dust must be from resource
It is paid attention to using two aspects are influenced with environment.In current research, the resource utilization of incineration firing flying dust needs to consider
Once 3 each factor: (1) service performance and cost.Good service performance and low cost are that resource utilization and the marketization are promoted
Necessary condition.(2) flexibility (adaptability) of operation.This is mainly determined by the physicochemical properties of flying dust.(3) meet environmental standard and have
Long-time stability.
Ultralight filler refers to bulk density in 200~500kg/m3Between filler, lightweight, porous feature extremely have
Conducive to the growth and breeding of microorganism, biological aerated filter is used for frequently as water treatment filler.Currently ultralight filler is mostly with clay
Raw material, and the clay overwhelming majority is taken from arable land, in order to protect land resource, country has prohibited producing and selling and use
Clay class agglomerated material.Incineration of refuse flyash is similar to the chemical component of clay, may replace clay and prepares ultralight filler.It is ultralight to fill out
The firing of material generally uses preheating-sintering two-step roasting technique: room temperature --- at the uniform velocity heating up ---, and preheating temperature (keeps one
Fix time) --- at the uniform velocity heat up --- sintering temperature (keeping certain time), the shortcomings that this technique is that the firing time is long, work
Skill low efficiency.
Summary of the invention
It is an object of the invention to improve the deficiencies in the prior art, a kind of incineration of refuse flyash is provided and prepares ultralight filler
Technique is realized the innoxious and disposal of resources to incineration of refuse flyash, while being realized to carrier performance and burning process efficiency
Raising.
The technical solution of the present invention is as follows: a kind of incineration of refuse flyash prepares the technique of ultralight filler, the specific steps are that:
(1) incineration of refuse flyash, Compound Heavy Metals stabilizer and auxiliary material grinding, sieving；Organic pore-forming agents crush, sieving.
(2) filler material is constituted by following weight: 20~56 parts by weight of incineration of refuse flyash, Compound Heavy Metals are steady
Determine 2~8 parts by weight of agent, 4~12 parts by weight of organic pore-forming agents, 32~66 parts by weight of auxiliary material；After siccative mixing, water is added sufficiently to stir
It mixes, after mixing evenly water-bath, is granulated after cooling, raw material ball is made；
(3) raw material ball is dry in baking oven；It is roasted again using the Fast Sintering system in without preheating stage；It is naturally cold after roasting
But to room temperature, ultralight filler is made.
It is preferred that incineration of refuse flyash, Compound Heavy Metals stabilizer and auxiliary material grinding sieve with 100 mesh sieve；Organic pore-forming agents crushed
32 meshes.
It is preferred that the ingredient of above-mentioned Compound Heavy Metals stabilizer is zeolite, sodium dihydrogen phosphate and magnesia；Wherein zeolite accounts for
The 20~30% of Compound Heavy Metals stabilizer quality, sodium dihydrogen phosphate account for the 45~55% of Compound Heavy Metals stabilizer quality, oxygen
Change magnesium and accounts for the 15~35% of Compound Heavy Metals stabilizer quality.
It is preferred that above-mentioned organic pore-forming agents are at least one of sawdust, stalk or rice husk；The auxiliary material is at least page
One of rock, flyash or clay.
It is preferred that above-mentioned water-bath temperature is 60~80 DEG C, the reaction time is 20~40min.
It is preferred that the temperature of raw material ball drying in baking oven is 100~120 DEG C, drying time is 2~4h.
It is preferred that the Fast Sintering system in above-mentioned without preheating stage be it is dry after pellet immigration have warmed up to 1100~
In 1200 DEG C of chamber type electric resistance furnace, 10~20min is roasted.
The utility model has the advantages that
1, the more conventional incineration of refuse flyash processing of incineration of refuse flyash method of resource provided by the invention and disposition side
Method has the advantage that operating cost is low, and the disposition period is short, and secondary pollution is few, and the useless rate of benefit is high.
2, the flying dust base provided by the invention ultralight filler burning process firing time is short, technique it is high-efficient.
3, filler produced by the present invention is light porous, is conducive to the backwash of the growth and breeding and filler of microorganism.
4, the Compound Heavy Metals stabilizing agent dosage that the present invention prepares is few, at low cost, heavy metal stabilization effect is good, to difference
Heavy metal component and form have universality, and the leaching rate of heavy metals that filler is made is smaller.
Specific embodiment
Embodiment 1
Zeolite, sodium dihydrogen phosphate and magnesia are by certain mass than mixing, and zeolite accounts for the 20% of mixture quality, di(2-ethylhexyl)phosphate
Hydrogen sodium accounts for the 45% of mixture quality, and magnesia accounts for the 35% of mixture quality, is sufficiently stirred, and is uniformly mixed, is configured to compound
Heavy metal stabilizer.Incineration of refuse flyash, Compound Heavy Metals stabilizer and shale grinding, sieve with 100 mesh sieve；Sawdust crushes, and crosses 32
Mesh.Filler material is constituted by following weight: 20 parts of incineration of refuse flyash, 2 parts of Compound Heavy Metals stabilizer, and sawdust 12
Part, 66 parts of shale；After siccative mixing, water is added to be sufficiently stirred, reacts 40min under 60 DEG C of water-baths after mixing evenly, made after cooling
Grain, is made raw material ball.Raw material ball dry 4h in the baking oven that temperature is 100 DEG C；The box electricity having warmed up to 1100 DEG C is moved into again
It hinders in furnace, roasts 20min；Ultralight filler is made in cooled to room temperature after roasting.Be made filler bulk density be
253.8kg/m3, the sum of percentage of damage and wear rate are 1.65%.
Filler prepared by embodiment 1 does Leaching of Heavy Metals experiment, and the result is shown in tables 1.
1 filler leaching experiment result of table
From the leaching experiment of 1 filler of table: the present invention uses incineration of refuse flyash as raw material, and shale is as auxiliary material, wood
Bits are used as pore creating material, add Compound Heavy Metals stabilizer, filler are made, heavy metal concentration is lower in leachate.
Embodiment 2
Zeolite, sodium dihydrogen phosphate and magnesia are by certain mass than mixing, and zeolite accounts for the 25% of mixture quality, di(2-ethylhexyl)phosphate
Hydrogen sodium accounts for the 50% of mixture quality, and magnesia accounts for the 25% of mixture quality, is sufficiently stirred, and is uniformly mixed, is configured to compound
Heavy metal stabilizer.Incineration of refuse flyash, Compound Heavy Metals stabilizer and shale grinding, sieve with 100 mesh sieve；Stalk crushes, and crosses 32
Mesh.Filler material is constituted by following weight: 38 parts of incineration of refuse flyash, 5 parts of Compound Heavy Metals stabilizer, and stalk 8
Part, 49 parts of shale；After siccative mixing, water is added to be sufficiently stirred, reacts 30min under 70 DEG C of water-baths after mixing evenly, made after cooling
Grain, is made raw material ball.Raw material ball dry 3h in the baking oven that temperature is 110 DEG C；The box electricity having warmed up to 1150 DEG C is moved into again
It hinders in furnace, roasts 15min；Ultralight filler is made in cooled to room temperature after roasting.Be made filler bulk density be
292.2kg/m3, the sum of percentage of damage and wear rate are 1.36%.
Filler prepared by embodiment 2 does Leaching of Heavy Metals experiment, and the result is shown in tables 2.
2 filler leaching experiment result of table
From the leaching experiment of 2 filler of table: the present invention uses incineration of refuse flyash as raw material, and shale is as auxiliary material, straw
Stalk adds Compound Heavy Metals stabilizer, filler is made, heavy metal concentration is lower in leachate as pore creating material.
Embodiment 3
Zeolite, sodium dihydrogen phosphate and magnesia are by certain mass than mixing, and zeolite accounts for the 30% of mixture quality, di(2-ethylhexyl)phosphate
Hydrogen sodium accounts for the 55% of mixture quality, and magnesia accounts for the 15% of mixture quality, is sufficiently stirred, and is uniformly mixed, is configured to compound
Heavy metal stabilizer.Incineration of refuse flyash, Compound Heavy Metals stabilizer and flyash grinding, sieve with 100 mesh sieve；Rice husk crushes, mistake
32 meshes.Filler material is constituted by following weight: 56 parts of incineration of refuse flyash, 8 parts of Compound Heavy Metals stabilizer, and rice husk
4 parts, 32 parts of flyash；After siccative mixing, water is added to be sufficiently stirred, 20min is reacted under 80 DEG C of water-baths after mixing evenly, after cooling
It is granulated, raw material ball is made.Raw material ball dry 2h in the baking oven that temperature is 120 DEG C；Move into again have warmed up it is box to 1200 DEG C
In resistance furnace, 10min is roasted；Ultralight filler is made in cooled to room temperature after roasting.Be made filler bulk density be
341.7kg/m3, the sum of percentage of damage and wear rate are 1.1%.
Filler prepared by embodiment 3 does Leaching of Heavy Metals experiment, and the result is shown in tables 3.
3 filler leaching experiment result of table
From the leaching experiment of 3 filler of table: the present invention uses incineration of refuse flyash as raw material, flyash as auxiliary material,
Rice husk adds Compound Heavy Metals stabilizer, filler is made, heavy metal concentration is lower in leachate as pore creating material.
Claims (2)
1. a kind of incineration of refuse flyash prepares the technique of ultralight filler, the specific steps are that:
(1) incineration of refuse flyash, Compound Heavy Metals stabilizer and auxiliary material grinding, sieving；Organic pore-forming agents crush, sieving；Wherein
The organic pore-forming agents are at least one of sawdust, stalk or rice husk；The auxiliary material is at least shale, flyash or viscous
One of soil；Incineration of refuse flyash, Compound Heavy Metals stabilizer and auxiliary material grinding, sieve with 100 mesh sieve；Organic pore-forming agents crush,
Cross 32 meshes；
(2) filler material is constituted by following weight: 20~56 parts by weight of incineration of refuse flyash, Compound Heavy Metals stabilizer
2~8 parts by weight, 4~12 parts by weight of organic pore-forming agents, 32~66 parts by weight of auxiliary material；After siccative mixing, adds water to be sufficiently stirred, stir
Water-bath after mixing uniformly is granulated after cooling, raw material ball is made；Wherein the ingredient of the Compound Heavy Metals stabilizer is boiling
Stone, sodium dihydrogen phosphate and magnesia；Wherein zeolite accounts for the 20~30% of Compound Heavy Metals stabilizer quality, and sodium dihydrogen phosphate accounts for multiple
The 45~55% of heavy metal stabilizer quality are closed, magnesia accounts for the 15~35% of Compound Heavy Metals stabilizer quality；It is wherein described
Water-bath temperature be 60~80 DEG C, the reaction time be 20~40min；
(3) raw material ball is dry in baking oven；It is roasted again using the Fast Sintering system in without preheating stage；Natural cooling after roasting,
Ultralight filler is made；Wherein the Fast Sintering system in the without preheating stage is that the pellet immigration after drying has warmed up to 1100
In~1200 DEG C of chamber type electric resistance furnace, 10~20min is roasted.
2. technique according to claim 1, it is characterised in that the drying temperature of baking oven is 100~120 DEG C in step (3),
Drying time is 2~4h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610530312.2A CN106187268B (en) | 2016-07-06 | 2016-07-06 | Process for preparing ultra-light filler from waste incineration fly ash |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610530312.2A CN106187268B (en) | 2016-07-06 | 2016-07-06 | Process for preparing ultra-light filler from waste incineration fly ash |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106187268A CN106187268A (en) | 2016-12-07 |
| CN106187268B true CN106187268B (en) | 2019-04-19 |
Family
ID=57472497
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610530312.2A Active CN106187268B (en) | 2016-07-06 | 2016-07-06 | Process for preparing ultra-light filler from waste incineration fly ash |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106187268B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111233505A (en) * | 2020-03-12 | 2020-06-05 | 山东省科学院新材料研究所 | Preparation method of waste incineration fly ash ceramsite |
| CN114956785A (en) * | 2022-06-29 | 2022-08-30 | 山东恒远利废技术股份有限公司 | Method for treating waste incineration fly ash and preparing high-strength ceramsite |
| CN115141003B (en) * | 2022-06-29 | 2023-06-09 | 杭州灰弘环保科技有限公司 | Method for preparing high-strength light ceramic tile by recycling fly ash |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103145403A (en) * | 2013-03-19 | 2013-06-12 | 南京工业大学 | Method for stabilizing heavy metals in process of preparing filler from chemical sludge incineration ash |
| CN103224385A (en) * | 2013-03-19 | 2013-07-31 | 南京工业大学 | Process for preparing filler by blending chemical sludge incineration ash with inorganic heavy metal stabilizer |
| CN105712739A (en) * | 2014-12-01 | 2016-06-29 | 北京大学深圳研究生院 | Magnetic biological ceramsite prepared from waste incineration fly ash, and preparation method thereof |
-
2016
- 2016-07-06 CN CN201610530312.2A patent/CN106187268B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103145403A (en) * | 2013-03-19 | 2013-06-12 | 南京工业大学 | Method for stabilizing heavy metals in process of preparing filler from chemical sludge incineration ash |
| CN103224385A (en) * | 2013-03-19 | 2013-07-31 | 南京工业大学 | Process for preparing filler by blending chemical sludge incineration ash with inorganic heavy metal stabilizer |
| CN105712739A (en) * | 2014-12-01 | 2016-06-29 | 北京大学深圳研究生院 | Magnetic biological ceramsite prepared from waste incineration fly ash, and preparation method thereof |
Non-Patent Citations (2)
| Title |
|---|
| 天然沸石负载氧化镁对养猪场废水净化效果的研究;梁文婷;《沈阳农业大学硕士学位论文》;20091231;摘要 |
| 重金属污染河道疏浚底泥稳定化实验研究;宋迪等;《水资源与水工程学报》;20150228;第26卷(第1期);63-67 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106187268A (en) | 2016-12-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105924220B (en) | Process for preparing filler by doping composite stabilizer into chemical sludge incineration ash | |
| CN102266690B (en) | Preparation method for ceramsite filter material for water treatment | |
| CN102206091B (en) | Method for making ceramsite by using sludge | |
| CN110240386A (en) | A kind of stalk cooperates with the devices and methods therefor of processing with sludge | |
| CN107159678B (en) | The control of dioxins method of agglomeration for iron mine collaboration processing garbage flying ash process | |
| CN105712733A (en) | Porous biological ceramsite prepared from waste incineration fly ash and biomass pyrolysis gasification residue, and preparation method thereof | |
| CN105712739B (en) | Magnetic biological ceramsite prepared from waste incineration fly ash and preparation method thereof | |
| CN102060426A (en) | Method for preparing ceramsite by utilizing dried sludge and burnt fly ash | |
| CN106187268B (en) | Process for preparing ultra-light filler from waste incineration fly ash | |
| CN103880472A (en) | Sludge porous material and preparation method thereof | |
| CN104402403B (en) | A kind of preparation method of incinerator ash curing heavy metal high-strength ceramic granule | |
| CN110467429A (en) | A method of high adsorption haydite is prepared using charcoal | |
| CN109867450B (en) | Sludge incineration ash cement and preparation and application thereof | |
| CN114751766A (en) | Light ceramsite fired by solid waste and method thereof | |
| CN101407408A (en) | Method for burning haydite by utilizing sludge | |
| CN103145403B (en) | Method for stabilizing heavy metals in process of preparing filler from chemical sludge incineration ash | |
| CN106642152A (en) | Method for harmless disposal and comprehensive utilization by mixed incineration of sludge and garbage fly ash | |
| CN108440013A (en) | A kind of biological aerated filter ceramic grain filter and preparation method thereof | |
| CN110723961A (en) | Environment-friendly microporous brick prepared by comprehensively utilizing solid wastes and preparation method thereof | |
| CN108147833A (en) | A kind of preparation method of iron tailings base low temperature haydite | |
| CN109534846A (en) | The disposal of resources method and haydite of sludge and agriculture and forestry organic waste material | |
| CN110237803A (en) | A kind of environment-friendly garbage deodorant and preparation method thereof | |
| CN112680232B (en) | Preparation method of ecological-friendly soil composite repairing agent | |
| CN103224385B (en) | Process for preparing filler by blending chemical sludge incineration ash with inorganic heavy metal stabilizer | |
| JP6944774B2 (en) | Sintered body and its manufacturing method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |