CN109180150A - Incineration of refuse flyash brick/watt and preparation method thereof - Google Patents
Incineration of refuse flyash brick/watt and preparation method thereof Download PDFInfo
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- CN109180150A CN109180150A CN201811339642.9A CN201811339642A CN109180150A CN 109180150 A CN109180150 A CN 109180150A CN 201811339642 A CN201811339642 A CN 201811339642A CN 109180150 A CN109180150 A CN 109180150A
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- 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
- C04B33/1324—Recycled material, e.g. tile dust, stone waste, spent refractory material
-
- 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
- C04B33/04—Clay; Kaolin
-
- 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
-
- 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
- C04B33/1352—Fuel ashes, e.g. fly ash
-
- 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
- C04B33/00—Clay-wares
- C04B33/32—Burning methods
- C04B33/34—Burning methods combined with glazing
-
- 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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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Dispersion Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Environmental & Geological Engineering (AREA)
- Combustion & Propulsion (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
Incineration of refuse flyash brick/watt and preparation method thereof, belong to field of environment engineering technology.It is characterized in that, brick body/watt body parts by weight of raw materials composition includes: incineration of refuse flyash or/and 24 ~ 55 parts of bottom ash, 0 ~ 22 part of tile edge waste material after 18 ~ 32 parts of clay, cement chelation treatment, 0 ~ 16 part of Solid construction rubbish.Obtain mud the following steps are included: ball-milling additive is added after being fitted into ball mill according to material rate and carries out ball milling, powder processed, it is dry after high pressure compression moulding obtain green body；It is burnt at 1020 DEG C ~ 1250 DEG C to obtain the final product.Processing cost of the present invention is lower, it is big to add treating capacity, dioxin decomposes, heavy metals immobilization is good.
Description
Technical field
Incineration of refuse flyash brick/watt and preparation method thereof, belong to category field of environment engineering technology.
Background technique
Incineration of refuse flyash refers to the residue collected in the flue gas purification system of garbage burning factory, generally comprises dedusting
Device flying dust and absorption tower flying dust, wherein containing flue dust, the chemical agent of addition and chemical reaction product etc..Incineration of refuse flyash
As a kind of high-specific surface area substance, not only the toxic heavy metals such as the mercury of enriched, lead and cadmium, are also enriched a large amount of two and dislike
English substance is a kind of while having the extra quality danger of Heavy Metal Pollution characteristic and the organic toxic hazard characteristic of environmental persistence useless
Object has great harmfulness to human health and ecological environment.
Incineration of refuse flyash is the very low tiny grit of moisture content, is in light gray powder.In terms of physicochemical property, general institute
The moisture content for taking ash sample is 10%~23%, and clinker ignition loss is 34%~51%.Flying dust is produced by particulate matter, reaction product, unreacted
Irregularly shaped object made of object and condensed product aggregation, particle size is uneven, substantially in 100m hereinafter, rough surface, is in polygonal
Matter shape, porosity is higher, and specific surface area is larger, and surface easily condenses the effumabilities metals such as enrichment Pb and Cd.
The content of each heavy metal species differs widely in flying ash, wherein Zn, Pb, Cu, the concentration of narmful substances such as Cr and Cd
Higher, this is related with the evaporating point of incineration temperature and various heavy metal substances.Evaporating point is lower than the heavy metal substance of incineration temperature,
After heated will all evaporation and into signs of human habitation gas.Heavy metal steam in flue gas condenses into uniform small with the reduction of flue-gas temperature
Particle is simultaneously attached on flue dust, is finally trapped by smoke dust-removing equipment, and flying ash is formed.A water-soluble state huge sum of money in flying dust
It is less to belong to content, the Pb and Zn that can be leached mainly exist in the form of sour solvent.And Cd is mainly with sour solvent and ion-exchange state shape
Formula exists, and in acid condition, the Leaching Heavy Metals of flying dust can greatly increase this explanation.
Dioxin is a substance of the chlorine atom instead of hydrogen atom on two phenyl ring connected by oxygen atom, mainly includes
Chloro dibenzo dioxin and chloro dibenzofurans two major classes.Various dioxin-like chemicals are solid, fusing point at normal temperature
It is higher, it is nonpolarity, it is insoluble in water, but be soluble in fat.
Dioxin is a kind of extremely toxic substance, and since chlorine atom number is different with substituted position, PCDDs and PCDFs respectively have
75 kinds and 135 kinds of isomers, and the Difference In Toxicity of various isomers is larger.Wherein 2,3,7,8-TCDD(T4CDD) it is referred to as " generation
The poison of discipline " seriously endangers human health.In addition, dioxin chemical property is also highly stable.In strong acid, highly basic and redox
It can keep stable in the case where effect, the effects of hydrolysis, photodegradation and microbial degradation in natural environment influences it
Very little.It is only more than to be easy after 800 DEG C to decompose, or just decompose under ultraviolet light irradiation in temperature.However, two in atmosphere
English primary attachment is disliked on aerosol particle, it is more difficult to be absorbed into ultraviolet light, therefore dioxin is difficult to natural decomposition once being formed.
In Refuse Incineration Process, chloride contained in rubbish can generate dioxin in burning.And in pyrolytic
Dioxin can be synthesized again in 250 DEG C ~ 400 DEG C temperature ranges, therefore in existing incineration of refuse flyash processing technique,
Dioxin effect is unsatisfactory in removal incineration of refuse flyash, up for developing refuse incineration flying dust processing technique, with
The secondary pollution caused by environment in incineration of refuse flyash treatment process is avoided to pollute.
Heavy metal typically refers to density greater than 6 g/cm3Metallic element, since that is discharged in Refuse Incineration Process has
The density of the minor metallic element of poison substantially belongs to this range, therefore traditionally by the trace toxic of Refuse Incineration Process discharge
Metallic element is referred to as heavy metal element.
In all heavy metals that Refuse Incineration Process is discharged, in addition to Hg is volatilization in a gaseous form, remaining is all kinds of heavy
Metal stays in bottom ash or flying dust admittedly, with particle-matrix or is adsorbed in ash surface.Cd contained in incineration of refuse flyash,
The heavy metals such as Pd, Zn, Cu, Cr meet water leaching in the environment, will cause seriously to pollute to soil, water body and atmosphere, destroy ecology
Environment.Therefore, in all kinds of hazardous wastes, heavy metal waste occupies very big specific gravity.During the burning process, the huge sum of money in rubbish
Belong to and traps experience evaporation, chemical reaction, the entrainment of particle and elutriation, the condensation of metal vapors, gas cleaning, the sedimentation of particle
Etc. processes formed in incinerator in migration.The factors such as the molten boiling point of each heavy metal species will affect their own migrated
Journey.
The current processing technique of incineration of refuse flyash and advantage and disadvantage
1, solidification and stabilisation+landfill method
It is domestic at present mainly to use cement solidification+landfill processing method.Curing process is flown using curing agent and waste incineration
Solidified body is formed after ash mixing, to reduce the dissolution of heavy metal.Cement is the most common hazardous waste curing agent, therefore engineering
In frequently with cement to flying ash carry out curing process.After flying dust is impregnated in the matrix of cement, under certain conditions, warp
Cross a series of physical and chemical effect, reduce mobility of the dirt in waste cement matrix system, such as formed dissolubility than metal from
The much smaller metal oxide etc. of son.
In addition, can also add some auxiliary materials to promote reaction process, powder and granule shape material is finally made to become firm concrete
Block, so that a large amount of waste be made to stablize because of solidification.Stabilization processes research is carried out to incineration of refuse flyash, the results showed that the greatest extent
Pipe uses flying dusts pre-treating technology, the building blocks that treated such as washing, crushing and is still difficult to reach higher-strength.In addition, due to by
The influence of chloride ion, the Fe in curing block2+、Cu2+、Zn2+Plasma is easy to leach, and causes pollutant exceeded.
Although cement solidification handles flying ash has the advantages that technical maturity, easy to operate, processing cost is low etc., due to
Contain higher chloride ion in incineration of refuse flyash, so when handling flying ash using cement solidification method, it is necessary to place before carrying out
Reason, to reduce the problems such as chloride ion leaches the influence of the mechanical performance of building block after solidification and later period heavy metal ion.This just exists
The requirement built and run to flying ash disposal site is greatly enhanced, increased costs is caused, limits this method
Application.
Cement solidification and stabilisation+landfill method are current domestic with most wide method is used, and are that current processing waste incineration flies
Most safe and reliable one of the means of ash.But the construction of security landfill field and operating cost are higher, while can not reach volume reduction
With the purpose of recycling, it is often more important that pollution hidden trouble cannot be completely eliminated, heavy metal is dissolved in acid, and the later period is acid in landfill heap body
Under the conditions of, heavy metal can be leached largely, contaminated soil and underground water.
2, coagulate stone stabilizing method: the technology Primary Study the result shows that: coagulate stone to heavy metal object in incineration of refuse flyash
The treatment effect of matter is good.But because addition content is too small, the flying dust yield relative to annual millions of tons has little significance.
3, melting and solidification technology: height can occur for heated melting, the organic pollutants such as dioxin in incineration of refuse flyash
Temperature is decomposed, then slag is rapidly cooled to form to fine and close and stable vitreum, to effectively control the leaching of heavy metal.Melting is solid
Change technology not only can control pollution, but also melting makes lime-ash become fine and close, volume reduction effect highly significant.But since this technique needs
Mass energy is consumed, and to Pb, the volatile heavy metal element such as Cd, Zn need to carry out stringent subsequent fume treatment, cause to fly
Grey processing cost is higher, at present can only be in economically developed countries use.
4, wet chemical treatment method: incineration of refuse flyash wet chemical treatment method includes acid adding extraction, in flue gas and carbon
Acidization etc..After the technique extracts the heavy metal (such as acid, alkali) in flying dust, then remaining flying dust and heavy metal carried out respectively
Resource utilization.Cost is relatively low for the process operation, and heavy metal and salt can be recycled.But there is also need to carry out to soluble salt and draining
The drawbacks of processing, be normally only used for heavy metal concentration it is higher, it is necessary to be recycled in the case where, at present seldom application.
By being analyzed above it is not difficult to find that existing processing method all cuts both ways.As a kind of effective processing method
Condition that is essential while meeting three aspects: 1, processing cost is lower, can economically bear.This includes two layers of meaning: first is that
The operating cost of processing method itself is cheap, second is that resource utilization, drags down actual motion cost using obtained by sale of finished product.
2, it is big to add treating capacity, is of practical significance to comprehensive harmless treatment of incineration of refuse flyash.3, there is preferable decomposition to dioxin,
There is preferable solidification to heavy metal.
Summary of the invention
The technical problem to be solved by the present invention is overcoming the deficiencies of the prior art and provide, a kind of processing cost is lower, adds
Treating capacity is big, dioxin decompose preferably, the preferable incineration of refuse flyash brick of heavy metals immobilization/watt and preparation method thereof.
The technical solution adopted by the present invention to solve the technical problems is: the brick body/watt body parts by weight of raw materials group
At including: incineration of refuse flyash or/and 24 ~ 55 parts of bottom ash, tile edge waste material 0 after 18 ~ 32 parts of clay, cement chelation treatment
~ 22 parts, 0 ~ 16 part of Solid construction rubbish.
The present invention is a kind of method that building decoration materials are made in incineration of refuse flyash disposal of resources, utilizes waste incineration
Flying dust manufactures building decoration materials, including but not limited to production floor tile, walltile, seepage brick, common stripping and slicing brick, various
Watt equal building and ornament materials.At normal temperature, by incineration of refuse flyash or the flying dust after cement chelation treatment is carried out, and it is several
After the architectural pottery raw materials for production mixing of special ratios, a certain amount of regulator is added, its physical and chemical index is adjusted, then
According to the product needs to be produced, carries out ball milling processing and dry powder processed or be only simply pulverized and mixed, needs are made
Feed powder.It is fired according to the product compression moulding to be produced into kiln high temperature with resulting feed powder, kiln can be roller kilns
Or tunnel oven, firing temperature is according to the difference of product and decomposes the needs of the harmful substances such as dioxin, and generally 900 ~ 1250
DEG C, buildings and the ornament materials such as production floor tile, walltile, seepage brick, common brick and tile.
Preferably, the incineration of refuse flyash after the cement chelation treatment or/and bottom ash composition composition include: dioxy
SiClx 15% ~ 62%, aluminum oxide 2.15% ~ 24%, di-iron trioxide 2.2 ~ 35, titanium dioxide 0.5% ~ 0.85%, calcium oxide 8% ~
24.5%, magnesia 0.5% ~ 8.5%, potassium oxide 0.6% ~ 8.1%, sodium oxide molybdena 0.8% ~ 7.9%, loss on ignition 4% ~ 28%.
It is furthermore preferred that the incineration of refuse flyash or/and bottom ash composition composition after the cement chelation treatment include: two
Silica 30% ~ 34%, aluminum oxide 10% ~ 14%, titanium dioxide 0.5% ~ 0.85%, calcium oxide 17% ~ 21.5%, magnesia 2.5%
~ 4.5%, potassium oxide 1.9% ~ 3.1%, sodium oxide molybdena 1.8% ~ 2.9%, loss on ignition 12% ~ 16%.
It is further preferred that incineration of refuse flyash or/and bottom ash composition composition packet after the cement chelation treatment
It includes: silica 32.86%, aluminum oxide 12.09%, di-iron trioxide 4.98%, titanium dioxide 0.67%, calcium oxide
19.42%, magnesia 3.24%, potassium oxide 2.46%, sodium oxide molybdena 2.36%, loss on ignition 14.60%.
Incineration of refuse flyash has the characteristic of high alumina, high sodium, high potassium, high silicon.
Preferably, brick body/watt body parts by weight of raw materials composition includes: 22 ~ 32 parts of clay, 0 ~ 15 part of feldspar, cement
24 ~ 50 parts of incineration of refuse flyash or/and bottom ash, 12 ~ 19 parts of green coke, 10 ~ 15 parts of diopside, 0 ~ 5 part of talcum after chelation treatment,
0 ~ 22 part of tile edge waste material, 0 ~ 16 part of Solid construction rubbish.Preferred parts by weight composition gained brick body/watt body intensity is more
It is high.
Preferably, the brick body be seepage brick/fired brick or watt body be sintered tiles (three bent tiles, S watts, it is flat
Pan tile, roofing tile or chain tile) bottom base, the brick body is seepage brick/fired brick or watt body is sintered tiles
Bottom base, the described parts by weight of raw materials composition include incineration of refuse flyash after 18 ~ 27 parts of clay, cement chelation treatment or/and
38 ~ 55 parts of bottom ash, 0 ~ 17 part of green coke, 0 ~ 14 part of three-level diopside, tile edge waste material 0 ~ 22,0 ~ 16 part of Solid construction rubbish.
Preferably, the brick body is the bottom base of glazed interior tile or glaze paint floor tile, the parts by weight of raw materials composition
Including the incineration of refuse flyash or/and 24 ~ 26 parts of bottom ash, 15 ~ 19 parts of green coke, saturating brightness after 28 ~ 32 parts of clay, cement chelation treatment
11 ~ 13 parts of stone, 12 ~ 13 parts of feldspar, 2.5 ~ 3.5 parts of talcum, 3.5 ~ 4.5 parts of tile edge waste material.
A kind of incineration of refuse flyash brick/watt preparation method, brick body be glazed interior tile bottom base, glaze paint floor tile bottom base or
Fired brick, or watt body are the bottom base of sintered tiles, which is characterized in that including following preparation step:
1) by after cement chelation treatment incineration of refuse flyash or/and bottom ash stirring, sunning, moisture control is 10% ~ 15%；
2) powder processed；
3) high pressure compression moulding is carried out to feed powder by press machine and obtains green body, green body shrinking percentage is 1% ~ 3%, and blank strength is
100kPa~120kPa；
4) it is burnt into obtain the final product at 900 DEG C ~ 1250 DEG C, the exhaust gas that kiln burns in sintering process is passed through in the resulting mud of step 2.
The firing time of firing described in step 4) is 25min ~ 40min when brick body is fired brick, and firing temperature is 900 DEG C
~1080℃。
Preferably, the firing time of firing described in step 4) is 25 min ~ 40 when watt body is the bottom base of sintered tiles
Min, firing temperature are 1020 DEG C ~ 1150 DEG C.When producing sintered tiles, the technique for taking twice firing, firing for the first time is will
Green body enters biscuit kiln and carries out the biscuiting of bottom base；It fires and is fired glaze layer again after glazing on the green body of sizing.
Preferably, when brick body is glazed interior tile bottom base or glaze paint floor tile bottom base when the firing of firing described in step 4)
Between be the min of 25 min ~ 40, firing temperature be 1020 ~ 1200 DEG C.
Preferably, apply overglaze after the biscuiting of bottom base, firing time when firing glaze layer is 25min ~ 40min, firing temperature
It is 1020 DEG C ~ 1200 DEG C.Alternatively, first applying one layer of ceramic precoat glazing again on the green body of the firing sizing.
A kind of preparation method of incineration of refuse flyash seepage brick, which is characterized in that including following preparation step:
1) by after cement chelation treatment incineration of refuse flyash or/and bottom ash stirring, sunning, moisture control is 10% ~ 15%；
2) powder processed respectively of the raw material other than the incineration of refuse flyash or/and bottom ash after cement chelation treatment；
3) by feed powder obtained with after cement chelation treatment incineration of refuse flyash or/and bottom ash uniformly mixed in batch mixer
Conjunction obtains compound powder；
4) high pressure compression moulding is carried out to compound powder by press machine and obtains green body, green body shrinking percentage is 1% ~ 3%, green body water suction
Rate is 19% ~ 21%, and blank strength is 100kPa ~ 120kPa；
5) it fires at 1050 DEG C ~ 1100 DEG C DEG C as 25min ~ 40min to obtain the final product, the exhaust gas that kiln burns in sintering process is passed through step
2) in resulting mud.
At normal temperature by the flying dust after cement chelation treatment and after the raw materials such as clay, porcelain stone are mixed in a certain ratio, carry out
Ball milling processing and dry powder (or being only simply pulverized and mixed) processed are fired with resulting feed powder compression moulding into kiln, raw
Buildings and the ornament materials such as place of production face brick, walltile, seepage brick, common brick and tile.
" powder processed " in above two preparation method in step 2 preferentially uses ball powder-grinding, when ball powder-grinding: according to original
Material ratio is added ball-milling additive progress ball milling and obtains mud after being fitted into ball mill, 3.5 ~ 4 tons of water are added in every 10 tons of raw materials；Powder processed
Feed powder is dried afterwards, moisture control is 5% ~ 7.5%." powder processed " Raymond mill also can be directly used or Vertical Mill is done
Legal system powder.
Fuel used in this method production process can be the general fossil fuel such as natural gas, coal gas, coal, can also
To cooperate with incineration firing treatment plant, using organic species Biogas such as rubbish from cooking, stalk rubbish after its garbage classification,
Using biogas as fuel；It can also explore and refuse burner is transformed, directly use rubbish as fuel, fired using rubbish
The heat of generation is burnt to handle incineration firing flying dust, so that realizing really turns waste into wealth, recycles, the reduction of bottom line
Energy consumption reduces pollution.
Such as: building constructions ceramic production line is attached in newly-built waste incineration enterprise, mating when building waste incineration enterprise
Bulky refuse sorting facility and biogas production facility are built, produces biogas using rubbish from cooking, stalk rubbish sorted out etc..It produces
Fuel of the raw biogas as architectural pottery production line makes waste incineration enterprise save flying dust chelating to produce fired brick
The expense of processing and the fuel of production building decoration materials, have stretched industry chain (supply chain), energy conservation and environmental benefit are significant significantly.
Alternatively, the self-built architectural pottery production line of waste incineration enterprise, built-in in the waste incineration enterprise being constructed and put into operation
If architectural pottery production line, increases the equipment such as ball milling, drying powder processed, press-molding, roller kilns firing, flown using waste incineration
The method of ash, bottom ash disposal of resources production fired brick, makes waste incineration enterprise save the expense of flying dust chelation treatment, and
It is allowed to resource utilization, is turned waste into wealth.
Compared with prior art, possessed beneficial effect of the invention is: the present invention is truly realized the money of garbage flying ash
Source and sustainable use.Using the high alumina of incineration of refuse flyash, high sodium, high potassium, high silicon characteristic, recycling benefit is carried out to it
With, as production building decoration materials major ingredient, be equipped with clay, porcelain stone, green coke, feldspar, kaolin, tile edge waste material, build
The one or more auxiliary material such as building refuse, improves its plasticity and porcelain degree, reaches its intensity, hardness, surface smoothness etc.
The standard requirements of building decoration materials make it have best possible merchandise and lower production cost, have the market competitiveness, very
Just reaching recycling and sustainable utilization.
Garbage flying ash addition content of the invention is big, and utilization rate is high, can rise to the general digestion processing of incineration of refuse flyash
To conclusive effect.China is still in the initial stage of urbanization at present, and all kinds of infrastructure construction dynamics of investment are very big, for building
Build the in great demand of ornament materials.Only by taking Zibo City as an example, peak period produce every year ceramic tile, building block turn, seepage brick, watt etc. products
About 2.4 hundred million square metres, consume about 5,000,000 tons of all kinds of ceramic raw materials.It is calculated according to 50% utilization rate and average 40% addition content,
About 1000000 tons of incineration of refuse flyash can be consumed every year, and do not generate other solid waste and secondary pollution, it is right
It is effectively treated comprehensively in millions of tonne of the incineration of refuse flyash that the current whole nation generates every year significant.
Harmless treatment excellent of the present invention to dioxin.Dioxin chemical property is highly stable, in strong acid, highly basic
With can keep stable in the case where redox, the effects of hydrolysis, photodegradation and microbial degradation in natural environment
Also very little is influenced on it.It is only more than to be easy after 800 DEG C to decompose, or just decompose under ultraviolet light irradiation in temperature.Rubbish
In burning process, chloride contained in rubbish can generate dioxin in burning.And the dioxin in pyrolytic exists
250 DEG C ~ 400 DEG C temperature ranges can synthesize again, therefore in existing incineration of refuse flyash processing technique, remove waste incineration
Dioxin effect is unsatisfactory in flying dust.And technical solution of the present invention exactly meets the decomposition condition of dioxin: 900 DEG C ~
1250 DEG C of firing temperature adds about 20 ~ 35 minutes high temperature firing sections, it is sufficient to promote dioxin to decompose, then soaking zone, drop
The forced ventilation of temperature section, can to avoid pyrolytic dioxin 250 DEG C ~ 400 DEG C temperature ranges synthesis again, it is ensured that
Harmless treatment to dioxin.
The present invention is to the close perfection of the harmless treatment of heavy metal.After high temperature forms by a firing, silica etc. is at high temperature
Melting forms glass solidified body, locks heavy metal molecules by the compact crystal structure of vitreum, it is ensured that solidified body is forever
Stablize long.
It is sintered the fuel used in production process of the present invention, can be the general fossil fuel such as natural gas, coal gas, coal,
It can also cooperate with incineration firing treatment plant, be produced using organic species such as rubbish from cooking, stalk rubbish after its garbage classification
Biogas, using biogas as fuel；Refuse burner can also be transformed, directly use rubbish as fuel, utilize rubbish
The heat generated that burns is fired, so that realizing really turns waste into wealth, recycles, the reduction energy consumption of bottom line, reduction
Pollution.
Specific embodiment
The present invention will be further described combined with specific embodiments below, and wherein embodiment 1 is best implements.
Embodiment 1
Incineration of refuse flyash used in the embodiment and bottom ash source are that Chinese Jin Jiang River environment Pty Ltd subordinate Zibo is green
Energy eco-friendly power source Co., Ltd Zichuan MSW Incineration Plant, has carried out cement chelation treatment.After cement chelation treatment
Incineration of refuse flyash basis composition include: silica 32.86%, aluminum oxide 12.09%, titanium dioxide 0.67%,
Calcium oxide 19.42%, magnesia 3.24%, potassium oxide 2.46%, sodium oxide molybdena 2.36%, loss on ignition 14.60%.Flown using waste incineration
The method of grey disposal of resources production fired brick, processing step include: flying dust and bottom ash pretreatment, ingredient, ball milling, powder processed, at
Type, drying, high temperature are fired, are classified packaging and other steps:
The pretreatment of flying dust bottom ash is that flying dust, the bottom ash after garbage burning factory to have been carried out to cement chelation treatment are mixed and stirred, dried in the air
It shines, makes its ingredient is opposite to keep stable, and the chelating agents such as ammonium hydroxide is enable sufficiently to decompose, moisture is evaporated, moisture content control
System is in 10-15%；
Ingredient, it is useless according to 42 parts of 26 parts of clay, flying dust and bottom ash mixture, 15 parts of green coke, 13 parts of three-level diopside, tile edge
5 parts of material is packed into ball mill；To solve the problems, such as that different batches flying dust, bottom ash and other material composition difference are larger, it is ensured that different
The ingredient that feed powder is made in batch raw material is relatively stable, should often chemically examine material composition, according to composition transfer to various
The component proportion of raw material is adjusted, it is ensured that feed powder ingredient made from different batches raw material is relatively stable；Tile edge waste material
The cost that addition has handled waste material of buildings, reduced cost this product；
When carrying out ball milling, filled the water according to the ratio of 10 tons of material, 3.5 tons of water.Routinely soda ash, humic acid is added in the amount of seepage brick
The chemical agents such as sodium, inclined silicon promote slurry to keep ingredient uniform and stable；After ball milling, by the exhaust gas utilization of kiln burning
Pipeline is passed through in ball mill or mud pit, carries out the flue gas carbonic acid reaction treatment of 10h, first is that solving exhaust pollution problems, makes it
Reach qualified discharge, second is that being reacted using the carbon dioxide in exhaust gas with the heavy metallic oxide in flying dust, bottom ash, is allowed to
Metastable heavy metal carbonate is formed, heavy metal pollution is reduced；It is larger to solve different batches flying dust, bottom ash ingredient difference
The problem of, larger amount of mud pit should be prepared, the mud as made from different batches raw material is adequately mixed, to realize
Material composition it is relatively stable；
It is different according to product produced when powder processed, determine the ratio of various fineness feed powders；It is aqueous when feed powder is dried
Rate is controlled 7% or so.Entire body additive color is needed, colorant and powder need to be sufficiently mixed.Ensuring that press pressing blank do not occur
Pipe under the premise of playing the problems such as drum, layering, should reduce moisture content as far as possible；
High pressure compacting is carried out to feed powder by press machine when molding, becomes the size and shape of needs；Surface layer is needed to add face
Color, the method that layer-by-layer distribution can be taken；This example produces fired brick, selects the press of 2000T or so, takes into account press speed and base
Body intensity；Green body is 1% ~ 3% having a size of 240*120*45mm, water absorption rate 20%, shrinking percentage；After drying, intensity is green body
108KPa；
This example produces fired brick, takes the method for once-firing.In the case where roller way kiln length is about 200 meters, when firing
Between be 37 minutes.Firing temperature is 1020 DEG C ~ 1080 DEG C.At this temperature, dioxin is sufficiently decomposed, and is contained in raw material
The abundant porcelain of ingredients such as sial sodium potassium magnesium, form silicate, the aluminosilicate structure of the extremely stable densification of physicochemical properties,
Heavy metal ion is firmly locked to solidification, avoids exudation pollution.
Embodiment 2
Fired brick, basic technology and step are prepared with above-described embodiment 1, the difference is that parts by weight of raw materials composition are as follows: 25 parts of clay,
40 parts of incineration of refuse flyash and bottom ash, 17 parts of green coke, 14 parts of three-level diopside, tile edge waste material after cement chelation treatment or
5.5 parts of Solid construction rubbish, firing time 38min.
Embodiment 3
Fired brick, basic technology and step are prepared with above-described embodiment 1, the difference is that parts by weight of raw materials composition are as follows: 27 parts of clay,
12 parts of 13 parts of 40 parts of waste incineration bottom ash, green coke, three-level diopside after cement chelation treatment, firing time 35min.
Embodiment 4
Fired brick, basic technology and step are prepared with above-described embodiment 1, the difference is that parts by weight of raw materials composition are as follows: 22 parts of clay,
15 parts of 12 parts of 24 parts of incineration of refuse flyash, green coke, diopside, tile edge waste material or Solid construction rubbish after cement chelation treatment
8 parts of rubbish.
Embodiment 5
The method for producing S watts using incineration of refuse flyash disposal of resources, processing step include: flying dust and bottom ash pretreatment, match
Material, ball milling, powder processed, molding, drying, high temperature are fired, are classified packaging and other steps:
Incineration of refuse flyash basis composition after cement chelation treatment includes: silica 30%, aluminum oxide 14%, and two
Titanium oxide 0.5%%, calcium oxide 21.5%, magnesia 2.5%, potassium oxide 3.1%, sodium oxide molybdena 2.9%, loss on ignition 16%, flying dust bottom ash are pre-
Processing is that flying dust, the bottom ash after garbage burning factory to have been carried out to cement chelation treatment are mixed and stirred, dried, and keeps its ingredient opposite
It keeps stablizing, and the chelating agent containing ammonium hydroxide is enable sufficiently to decompose, moisture is able to evaporation moisture control 15%.
Ingredient, according to 42 parts of mixture, the green coke of incineration of refuse flyash and bottom ash after 26 parts of clay, cement chelation treatment
15 parts, the ratio of 13 parts of three-level diopside, 5 parts of tile edge waste material are packed into ball mill.To solve different batches flying dust, bottom ash
Larger problem, chemically examines material composition with other material composition difference, matches according to composition transfer to various raw material
It is adjusted than ratio, it is ensured that the ingredient that feed powder is made in different batches raw material is relatively stable；
When carrying out ball milling, filled the water according to the ratio of 10 tons of material, 3.5 tons of water.The chemical agents such as soda ash, sodium humate, inclined silicon are added,
Slurry is promoted to keep ingredient uniform and stable.After ball milling, the exhaust gas utilization pipeline that kiln burns is passed through ball mill or mud
In stock tank, the flue gas carbonic acid reaction treatment of 8h is carried out, first is that solving exhaust pollution problems, qualified discharge is reached, second is that sharp
It is reacted with the carbon dioxide in exhaust gas with the heavy metallic oxide in flying dust, bottom ash, is allowed to form a metastable huge sum of money
Belong to carbonate, reduces heavy metal pollution.To solve the problems, such as that different batches flying dust, bottom ash ingredient difference are larger, should prepare compared with
A large amount of mud pit, the mud as made from different batches raw material are adequately mixed, to realize the relatively steady of material composition
It is fixed；
When powder processed, the ratio of various fineness feed powders is determined.When feed powder is dried, moisture content general control is 7% or so.It needs
Entire body additive color is wanted, colorant and powder need to be sufficiently mixed.Ensure press pressing blank do not occur pipe, rise drum, layering etc.
Under the premise of problem, moisture content should be reduced as far as possible；
High pressure compacting is carried out to feed powder by press machine when molding, becomes the size and shape of needs.Surface layer is needed to add face
Color, the method that layer-by-layer distribution can be taken.In production S watt-hour, the press of 2000T or so can be selected, take into account press speed and base
Body intensity.Green body shrinking percentage is 1% ~ 3%.Green body after drying, intensity 110KPa；
In production S watt-hour, the method for twice firing is taken, is fired for the first time as green body is entered biscuit kiln and carries out the biscuiting of bottom base；
It fires and is fired glaze layer again after glazing on the green body of sizing.In the case where roller way kiln length is about 200 meters, firing time
It is 38 minutes.Firing temperature is 1080 ~ 1150 DEG C.At this temperature, dioxin is sufficiently decomposed, the silicon contained in raw material
The abundant porcelain of the ingredients such as aluminium sodium potassium magnesium forms silicate, the aluminosilicate structure of the extremely stable densification of physicochemical properties, will weigh
Metal ion firmly locks solidification, avoids exudation pollution.
Embodiment 6
Three bent tiles, basic technology and step are prepared with above-described embodiment 5, unlike parts by weight of raw materials group become 25 parts of clay,
14 parts of 17 parts of 44 parts of mixture, green coke, three-level diopside, the ceramic tile mill of incineration of refuse flyash and bottom ash after cement chelation treatment
The firing times of leftover bits and pieces of material or 5.5 parts of Solid construction rubbish, two firings are 30 min.
Embodiment 7
Chain tile, basic technology and step are prepared with above-described embodiment 5, unlike parts by weight of raw materials group become 27 parts of clay,
12 parts of 13 parts of 40 parts of incineration of refuse flyash, green coke, three-level diopside after cement chelation treatment, take the method for once-firing,
The once-firing after glazing directly on the green body of compression moulding, the firing time of firing are 40 min.
Embodiment 8
Incineration of refuse flyash basis composition after cement chelation treatment includes: silica 34%, aluminum oxide 10%, and two
Titanium oxide 0.85%, calcium oxide 17%, magnesia 4.5%, potassium oxide 1.9%, sodium oxide molybdena 1.8%, loss on ignition 12%；Utilize waste incineration
Flying dust disposal of resources produce seepage brick (permeable square brick), fired brick, sintered tiles method, processing step include: flying dust and
Bottom ash pretreatment, ingredient, ball milling, powder processed, material mixing, molding, high temperature are fired, are classified packaging and other steps:
The pretreatment of flying dust bottom ash is that flying dust, the bottom ash after garbage burning factory to have been carried out to cement chelation treatment are mixed and stirred, dried in the air
It shines, makes its ingredient is opposite to keep stable, and the chelating agent containing ammonium hydroxide is enable sufficiently to decompose, moisture is evaporated, moisture content
Control is 10%.Then it according to partial size 1-5mm, is sieved.
Ingredient, according to 20 parts of clay, 18 parts of tile edge waste material, 14 parts of Solid construction rubbish of ratio ingredient.To solve
Different batches flying dust, bottom ash and the larger problem of other material composition difference, chemically examine material composition, according to composition transfer
The ratio of various raw material is adjusted, it is ensured that the ingredient that feed powder is made in different batches raw material is relatively stable；
It directlys adopt Vertical Mill and carries out dry method powder.Before ensuring that press pressing blank does not occur the problems such as pipe, play drum, layering
It puts, moisture content should be reduced as far as possible；
By 52 parts of feed powder obtained, 45 parts of mixing of the flying dust and bottom ash that have pre-processed, uniformly mixed in batch mixer.It is mixed
Feed powder humidity after conjunction should be controlled 7%；
High pressure compacting is carried out to mixed feed powder by press machine when molding, becomes the size and shape of needs.It needs
Surface layer adds color, the method that can take layer-by-layer distribution.When producing seepage brick, the press of 2000T or so can be selected, take into account pressure
Machine speed and blank strength.Green body size is generally 240*120*45mm, and shrinking percentage is 1% ~ 3%.After drying, intensity is green body
120KPa；
In the case where roller way kiln length is about 200 meters, firing time is about 32 minutes.Firing temperature is 1050 ~ 1100 DEG C.
At this temperature, dioxin is sufficiently decomposed, and the abundant porcelain of ingredients such as sial sodium potassium magnesium contained in raw material forms physics
Heavy metal ion, is firmly locked solidification, avoids exudation by silicate, the aluminosilicate structure of the extremely stable densification of chemical property
Pollution.
Embodiment 9
Seepage brick, fired brick, sintered tiles are prepared, basic technology and step are with above-described embodiment 8, the difference is that parts by weight of raw materials group
Become: 55 parts of incineration of refuse flyash or/and bottom ash, 15 parts of tile edge waste material after 22 parts of clay, cement chelation treatment, solid
12 parts of building waste, firing time 30min, wherein the mixture basis of incineration of refuse flyash and bottom ash, which forms, includes:
Silica 62%, aluminum oxide 2.15%, di-iron trioxide 2.2%, titanium dioxide 0.85%, calcium oxide 8%, magnesia 8.5%,
Potassium oxide 8.1%, sodium oxide molybdena 7.9%；The loss on ignition 4% of the mixture of incineration of refuse flyash and bottom ash.
Embodiment 10
Seepage brick, fired brick, sintered tiles are prepared, basic technology and step are with above-described embodiment 8, the difference is that parts by weight of raw materials group
Become: the incineration of refuse flyash after 18 parts of clay, cement chelation treatment or/and 38 parts of bottom ash, 22 parts of tile edge waste material, solid
16 parts of building waste, firing time 35min, wherein incineration of refuse flyash basis, which forms, includes: silica 1 5%, and three
Al 2 O 24%, di-iron trioxide 35%, titanium dioxide 0.5%, calcium oxide 19.5%, magnesia 0.5%, potassium oxide 0.6%, oxidation
Sodium 0.8%；The loss on ignition of incineration of refuse flyash is 28%.
Embodiment 11
It include: flying dust and bottom ash pretreatment, ingredient, ball using incineration of refuse flyash disposal of resources production glazed tile processing step
It grinds, powder processed, molding, green body biscuiting drying, surface glazing, high temperature firing, classification packaging and other steps:
Incineration of refuse flyash basis composition after cement chelation treatment includes: silica 32%, aluminum oxide 13%, and two
Titanium oxide 0.73%, calcium oxide 18.3%, magnesia 3.3%, potassium oxide 2.63%, sodium oxide molybdena 2.23%, loss on ignition 14.6%.Flying dust bottom
Ash pretreatment is that flying dust, the bottom ash after garbage burning factory to have been carried out to cement chelation treatment are mixed and stirred, dried, and makes its ingredient
It is opposite to keep stablizing, and the chelating agent containing ammonium hydroxide is enable sufficiently to decompose, moisture is evaporated, and moisture control is on 12% left side
It is right；
Ingredient, according to after 32 parts of clay, cement chelation treatment 15 parts of 12 parts of 24 parts of incineration of refuse flyash, Mengyin feldspar, green coke,
The ratio ingredient of 13 parts of diopside, 2.5 parts of talcum, 4.5 parts of tile edge waste material.For solve different batches flying dust, bottom ash and its
His larger problem of material composition difference, chemically examines material composition, according to composition transfer to various raw material with frequently
Example is adjusted, it is ensured that the ingredient that feed powder is made in different batches raw material is relatively stable.This example produces expensive goods, is formulated system with this
In addition the powder obtained is made fabric with the higher ceramic tile raw material of class, is improved by the method for layer-by-layer distribution as green body material
The whiteness of product；
Raymond mill is directlyed adopt after ingredient and carries out dry method powder, and the exhaust gas utilization pipeline that kiln burns is passed through ball mill or mud
In pond, the flue gas carbonic acid reaction treatment of 10h is carried out, first is that solving exhaust pollution problems, reaches qualified discharge, second is that utilizing
Carbon dioxide in exhaust gas is reacted with the heavy metallic oxide in flying dust, bottom ash, is allowed to form metastable heavy metal
Carbonate reduces heavy metal pollution.To solve the problems, such as that different batches flying dust, bottom ash ingredient difference are larger, should prepare larger
The mud pit of amount, the mud as made from different batches raw material are adequately mixed, to realize the relatively stable of material composition；
It is different according to product produced when powder processed, rationally determine the ratio of various fineness feed powders.When feed powder is dried,
Moisture content general control is 7%.Under the premise of ensuring that press pressing blank does not occur the problems such as pipe, play drum, layering, it should use up
Amount reduces moisture content；
High pressure compacting is carried out to feed powder by press machine when molding, becomes the size and shape of needs.Press machine generally selects
With 2000T grades or more of press, press speed and blank strength are taken into account.Green body shrinking percentage is 1% ~ 3%；
Green body enters biscuit kiln and carries out green body firing, so that green body is formed, and reach some strength；
Surface glazing imposes ground coat enamel and overglaze by glazing line, ink jet printer or printing machine, carries out surface ink-jet or stamp；
In the case where roller way kiln length is about 200 meters, firing time is 35 minutes.Firing temperature is about 1080 ~ 1200 DEG C.
At this temperature, dioxin is sufficiently decomposed, and the abundant porcelain of ingredients such as sial sodium potassium magnesium contained in raw material forms physics
Heavy metal ion, is firmly locked solidification, avoids exudation by silicate, the aluminosilicate structure of the extremely stable densification of chemical property
Pollution.
Embodiment 12
Glazed tile, basic technology and step are prepared with above-described embodiment 11, unlike parts by weight of raw materials group become 28 parts of clay,
11 parts of 19 parts of 13 parts of 26 parts of mixing, albite, green coke, the diopside of incineration of refuse flyash and bottom ash after cement chelation treatment,
Talcum 3.5, tile edge waste material 3.5.Firing time is 38 minutes.
Embodiment 13
Glazed tile, basic technology and step are prepared with above-described embodiment 11, unlike parts by weight of raw materials group become 32 parts of clay,
12 parts of 13 parts of 15 parts of 24 parts of mixing, green coke, diopside, the potassium feldspar of incineration of refuse flyash and bottom ash after cement chelation treatment,
2.5 parts of talcum, 4.5 parts of tile edge waste material, firing time are 37 minutes.
Embodiment 14
Glazed tile, basic technology and step are prepared with above-described embodiment 11, unlike parts by weight of raw materials group become 32 parts of clay,
15 parts of 10 parts of 19 parts of 50 parts of mixing, green coke, diopside, the potassium feldspar of incineration of refuse flyash and bottom ash after cement chelation treatment,
5 parts of talcum.
Through detecting, fired brick prepared by embodiment 1 ~ 12/watt, the property of seepage brick, glazed interior tile or glaze paint floor tile
The physical and chemical performance requirement of the even better than national standard and professional standard of Related product can be all satisfied.And the shock resistance of embodiment 1
Excellent in cushion effect 1.3MPa of the intensity compared with embodiment 4, the impact strength of the impact strength of embodiment 11 compared with embodiment 14
High 0.9MPa.
Above-described embodiment 1 ~ 14, powder link processed can be between ball powder-grindings either dry method powder, according to former material
Material and actual production conditions are interchangeable selection.
The above described is only a preferred embodiment of the present invention, being not that the invention has other forms of limitations, appoint
What those skilled in the art changed or be modified as possibly also with the technology contents of the disclosure above equivalent variations etc.
Imitate embodiment.But without departing from the technical solutions of the present invention, according to the technical essence of the invention to above embodiments institute
Any simple modification, equivalent variations and the remodeling made, still fall within the protection scope of technical solution of the present invention.
Claims (10)
1. a kind of incineration of refuse flyash brick/watt, including brick body/watt body, which is characterized in that brick body/watt body raw material weight
Part composition includes: the incineration of refuse flyash or/and 24 ~ 55 parts of bottom ash, tile edge after 18 ~ 32 parts of clay, cement chelation treatment
0 ~ 22 part of waste material, 0 ~ 16 part of Solid construction rubbish.
2. incineration of refuse flyash brick according to claim 1/watt, it is characterised in that: after the cement chelation treatment
Incineration of refuse flyash or/and bottom ash composition composition include: silica 1 5% ~ 62%, aluminum oxide 2.15% ~ 24%, three oxygen
Change two iron 2.2 ~ 35, titanium dioxide 0.5% ~ 0.85%, calcium oxide 8% ~ 24.5%, magnesia 0.5% ~ 8.5%, potassium oxide 0.6% ~
8.1%, sodium oxide molybdena 0.8% ~ 7.9%, loss on ignition 4% ~ 28%.
3. incineration of refuse flyash brick according to claim 1/watt, it is characterised in that: brick body/watt body raw material weight
Part composition includes: the incineration of refuse flyash or/and bottom ash 24 ~ 50 after 22 ~ 32 parts of clay, 0 ~ 15 part of feldspar, cement chelation treatment
Part, 12 ~ 19 parts of green coke, 10 ~ 15 parts of diopside, 0 ~ 5 part of talcum, 0 ~ 22 part of tile edge waste material, 0 ~ 16 part of Solid construction rubbish.
4. incineration of refuse flyash brick according to claim 1/watt, it is characterised in that: the brick body is seepage brick/sintering
Brick or watt body are the bottom base of sintered tiles, and the parts by weight of raw materials composition includes 18 ~ 27 parts of clay, cement chelating
Treated incineration of refuse flyash or/and 38 ~ 55 parts of bottom ash, 0 ~ 17 part of green coke, 0 ~ 14 part of three-level diopside, tile edge waste material
0 ~ 22,0 ~ 16 part of Solid construction rubbish.
5. incineration of refuse flyash brick according to claim 1/watt, it is characterised in that: the brick body is glazed interior tile
Or the bottom base of glaze paint floor tile, the parts by weight of raw materials composition are burnt including the rubbish after 28 ~ 32 parts of clay, cement chelation treatment
Burn flying dust or/and 24 ~ 26 parts of bottom ash, 15 ~ 19 parts of green coke, 11 ~ 13 parts of diopside, 12 ~ 13 parts of feldspar, 2.5 ~ 3.5 parts of talcum, porcelain
3.5 ~ 4.5 parts of brick edging waste material.
6. a kind of incineration of refuse flyash brick/watt preparation method, brick body is glazed interior tile bottom base, glaze paint floor tile bottom base or burning
Brick is tied, or watt body is the bottom base of sintered tiles, which is characterized in that including following preparation step:
1) by after cement chelation treatment incineration of refuse flyash or/and bottom ash stirring, sunning, moisture control is 10% ~ 15%；
2) powder processed；
3) high pressure compression moulding is carried out to feed powder by press machine and obtains green body, green body shrinking percentage is 1% ~ 3%, and blank strength is
100kPa~120kPa；
4) it is burnt into obtain the final product at 900 DEG C ~ 1250 DEG C, the exhaust gas that kiln burns in sintering process is passed through in the resulting mud of step 2.
7. a kind of incineration of refuse flyash brick according to claim 6/watt preparation method, it is characterised in that: brick body is to burn
The firing time of firing described in step 4) is 25min ~ 40min when tying brick, and firing temperature is 900 DEG C ~ 1080 DEG C.
8. a kind of incineration of refuse flyash brick according to claim 6/watt preparation method, it is characterised in that: watt body is to burn
The firing time of firing described in step 4) is the min of 25 min ~ 40 when the bottom base of knot watt, and firing temperature is 1020 DEG C ~ 1150
℃。
9. a kind of incineration of refuse flyash brick according to claim 6/watt preparation method, it is characterised in that: brick body is glaze
The firing time of firing described in step 4) is the min of 25 min ~ 40, firing when face internal wall brick bottom base or glaze paint floor tile bottom base
Temperature is 1020 ~ 1200 DEG C.
10. a kind of incineration of refuse flyash brick/watt preparation method, brick body is seepage brick, which is characterized in that is walked including following preparation
It is rapid:
1) by after cement chelation treatment incineration of refuse flyash or/and bottom ash stirring, sunning, moisture control is 10% ~ 15%；
2) by the powder processed respectively of the raw material other than the incineration of refuse flyash or/and bottom ash after cement chelation treatment；
3) by feed powder obtained with after cement chelation treatment incineration of refuse flyash or/and bottom ash uniformly mixed in batch mixer
Conjunction obtains compound powder；
4) high pressure compression moulding is carried out to compound powder by press machine and obtains green body, green body shrinking percentage is 1% ~ 3%, green body water suction
Rate is 19% ~ 21%, and blank strength is 100kPa ~ 120kPa；
5) it fires at 1050 DEG C ~ 1100 DEG C DEG C as 25min ~ 40min to obtain the final product, the exhaust gas that kiln burns in sintering process is passed through step
2) in resulting mud.
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| CN112624732B (en) * | 2020-12-22 | 2023-08-04 | 贵州欧玛陶瓷有限责任公司 | Method and device for preparing building ceramic by utilizing waste incineration fly ash |
| CN112624732A (en) * | 2020-12-22 | 2021-04-09 | 贵州欧玛陶瓷有限责任公司 | Building ceramic prepared from waste incineration fly ash and preparation method |
| CN113350737A (en) * | 2021-06-08 | 2021-09-07 | 江苏乐尔环境科技股份有限公司 | Fly ash chelating agent capable of effectively inhibiting selenium leaching and preparation method thereof |
| CN113372130A (en) * | 2021-06-21 | 2021-09-10 | 湖南国发控股有限公司 | Foamed ceramic produced by fly ash and commercial concrete mixing plant waste and preparation method thereof |
| CN113617806A (en) * | 2021-08-20 | 2021-11-09 | 北科蕴宏环保科技(北京)有限公司 | Novel system and method for removing dioxin in waste incineration fly ash |
| CN113927720A (en) * | 2021-09-24 | 2022-01-14 | 浙江大象新型材料有限公司 | Tile manufacturing process |
| CN116352869A (en) * | 2023-05-31 | 2023-06-30 | 生态环境部华南环境科学研究所(生态环境部生态环境应急研究所) | Harmless treatment and recycling device and method for fly ash |
| CN116352869B (en) * | 2023-05-31 | 2023-08-08 | 生态环境部华南环境科学研究所(生态环境部生态环境应急研究所) | Harmless treatment and recycling device and method for fly ash |
| CN116947452A (en) * | 2023-06-08 | 2023-10-27 | 常州大学 | Method for granulating and making bricks by coating waste incineration fly ash with glass powder |
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