CN101956441B - Lightweight environment-friendly bricks prepared from waste incineration flyash and preparation method thereof - Google Patents
Lightweight environment-friendly bricks prepared from waste incineration flyash and preparation method thereof Download PDFInfo
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- CN101956441B CN101956441B CN2009100890036A CN200910089003A CN101956441B CN 101956441 B CN101956441 B CN 101956441B CN 2009100890036 A CN2009100890036 A CN 2009100890036A CN 200910089003 A CN200910089003 A CN 200910089003A CN 101956441 B CN101956441 B CN 101956441B
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- 239000011449 brick Substances 0.000 title claims abstract description 38
- 239000010881 fly ash Substances 0.000 title claims abstract description 36
- 238000002360 preparation method Methods 0.000 title abstract 3
- 238000004056 waste incineration Methods 0.000 title abstract 2
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 claims abstract description 26
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims abstract description 20
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000000292 calcium oxide Substances 0.000 claims abstract description 14
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims abstract description 14
- 229910001385 heavy metal Inorganic materials 0.000 claims abstract description 14
- 239000004576 sand Substances 0.000 claims abstract description 14
- 239000004568 cement Substances 0.000 claims abstract description 13
- 239000002994 raw material Substances 0.000 claims abstract description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000011790 ferrous sulphate Substances 0.000 claims abstract description 11
- 235000003891 ferrous sulphate Nutrition 0.000 claims abstract description 11
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 claims abstract description 11
- 229910000359 iron(II) sulfate Inorganic materials 0.000 claims abstract description 11
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 claims abstract description 10
- 239000001110 calcium chloride Substances 0.000 claims abstract description 10
- 229910001628 calcium chloride Inorganic materials 0.000 claims abstract description 10
- 229910000029 sodium carbonate Inorganic materials 0.000 claims abstract description 10
- 238000002156 mixing Methods 0.000 claims abstract description 7
- 238000003756 stirring Methods 0.000 claims abstract description 6
- 239000010813 municipal solid waste Substances 0.000 claims description 37
- 239000002956 ash Substances 0.000 claims description 25
- 239000000843 powder Substances 0.000 claims description 19
- 239000002245 particle Substances 0.000 claims description 16
- 238000000034 method Methods 0.000 claims description 15
- 239000000203 mixture Substances 0.000 claims description 11
- 239000003795 chemical substances by application Substances 0.000 claims description 10
- 239000000779 smoke Substances 0.000 claims description 10
- 238000012545 processing Methods 0.000 claims description 9
- 238000001125 extrusion Methods 0.000 claims description 8
- 238000004519 manufacturing process Methods 0.000 claims description 8
- 230000010358 mechanical oscillation Effects 0.000 claims description 8
- 239000000428 dust Substances 0.000 claims description 7
- 238000010438 heat treatment Methods 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 6
- 239000004575 stone Substances 0.000 claims description 6
- 230000005611 electricity Effects 0.000 claims description 5
- 239000012535 impurity Substances 0.000 claims description 5
- 230000001877 deodorizing effect Effects 0.000 claims description 4
- 238000007885 magnetic separation Methods 0.000 claims description 4
- 229910052751 metal Inorganic materials 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 238000000465 moulding Methods 0.000 claims description 4
- 230000001954 sterilising effect Effects 0.000 claims description 4
- 238000004659 sterilization and disinfection Methods 0.000 claims description 4
- 241000270666 Testudines Species 0.000 claims description 3
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 2
- 229910052749 magnesium Inorganic materials 0.000 claims description 2
- 239000011777 magnesium Substances 0.000 claims description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract description 17
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 abstract description 16
- 229910052943 magnesium sulfate Inorganic materials 0.000 abstract description 8
- 235000019341 magnesium sulphate Nutrition 0.000 abstract description 8
- 239000002699 waste material Substances 0.000 abstract description 3
- 235000011148 calcium chloride Nutrition 0.000 abstract description 2
- 235000017550 sodium carbonate Nutrition 0.000 abstract description 2
- 238000012360 testing method Methods 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 6
- 238000011161 development Methods 0.000 description 5
- 230000002742 anti-folding effect Effects 0.000 description 4
- 230000033228 biological regulation Effects 0.000 description 4
- 239000004566 building material Substances 0.000 description 4
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000004927 clay Substances 0.000 description 3
- 239000002920 hazardous waste Substances 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 2
- 235000011941 Tilia x europaea Nutrition 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000004035 construction material Substances 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000004571 lime Substances 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 239000012857 radioactive material Substances 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- DQMUQFUTDWISTM-UHFFFAOYSA-N O.[O-2].[Fe+2].[Fe+2].[O-2] Chemical compound O.[O-2].[Fe+2].[Fe+2].[O-2] DQMUQFUTDWISTM-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 229910000323 aluminium silicate Inorganic materials 0.000 description 1
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 1
- 239000000920 calcium hydroxide Substances 0.000 description 1
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 1
- 239000013522 chelant Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 230000001112 coagulating effect Effects 0.000 description 1
- 239000002817 coal dust Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 235000013312 flour Nutrition 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 210000004884 grey matter Anatomy 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 239000000383 hazardous chemical Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000004064 recycling Methods 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
- CCEKAJIANROZEO-UHFFFAOYSA-N sulfluramid Chemical group CCNS(=O)(=O)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)F CCEKAJIANROZEO-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/10—Lime cements or magnesium oxide cements
-
- 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
- C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
- C04B2103/0004—Compounds chosen for the nature of their cations
- C04B2103/0006—Alkali metal or inorganic ammonium compounds
- C04B2103/0008—Li
-
- 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
- C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
- C04B2103/0004—Compounds chosen for the nature of their cations
- C04B2103/001—Alkaline earth metal or Mg-compounds
- C04B2103/0012—Mg
-
- 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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00017—Aspects relating to the protection of the environment
-
- 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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00034—Physico-chemical characteristics of the mixtures
- C04B2111/00129—Extrudable mixtures
-
- 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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/0075—Uses not provided for elsewhere in C04B2111/00 for road construction
-
- 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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/40—Porous or lightweight materials
-
- 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Abstract
The invention relates to lightweight environment-friendly bricks prepared from waste incineration flyash and a preparation method thereof. The preparation method is characterized by comprising the following steps of: mixing and stirring waste flyash, flyash, river sand, calcium oxide, calcium sulfate, cement, sodium carbonate, calcium chloride, ferrous sulfate, magnesium sulfate, a Li high molecular heavy metal collector, water and the like serving as raw materials, and mechanically vibrating and extruding for forming the lightweight environment-friendly bricks under the pressure of 25-30MPa; and performing steam curing by using a still kettle, raising the temperature to heat for 2 to 3 hours, keeping constant temperature of between 95 and 100 DEG C for 5 to 8 hours, and naturally reducing the temperature for 1 to 2 hours to prepare the lightweight environment-friendly bricks. The raw materials of the invention can be prepared into hollow blocks and sidewalk road bricks in different specifications; and the products have the advantages of light weight, high strength, no pollution, low cost and good benefit.
Description
Technical field
The present invention relates to a kind of garbage flying ash light-weight environment-friendly brick, specifically it be with household garbage in the burning electricity generation process, a kind of light-weight environment-friendly brick that the garbage flying ash that discharges behind the residue of collecting by the collected flying dust of smoke duster and smoke processing system is made.
The invention still further relates to the manufacture method of this light-weight environment-friendly brick.
Background technology
Domestic garbage incineration flyash belongs to one of hazardous waste of national regulation, and code is: 802-002-18.Its contents of heavy metal elements is higher.Along with the continuous increase of China's rapid development of economy and urban population, the generation of household garbage is increasing.The whole nation has 2/3 city to be surrounded by rubbish, and annual with 8% speed increase, governments at all levels and relevant department all actively seeking effective treatment technology, handle household garbage.The household garbage of I Country adopts incinerating method to obtain better effects at present, and development speed is than piece, scale is increasing, but the generation of incineration of refuse flyash is also accumulated year by year and is increased, current processing mode to domestic garbage incineration flyash, mainly be to adopt burying method to handle, to reduce pollution to environment.Owing to contain a certain amount of hazardous substances, particularly heavy metal in the garbage flying ash, if unprocessed direct landfill, will contaminated soil and groundwater resources, be easy to generate secondary pollution, environment is worked the mischief.Long-term landfill need take a large amount of land resources, and environmental protection has become necessary part in everyone life, also is the basis that promotes social development, becomes the main task that current people pay close attention to most.
Summary of the invention
Purpose of the present invention is just in order to solve the problem of above-mentioned existence, provide a kind of light-weight environment-friendly brick and manufacture method made from incineration of refuse flyash thereof according to [2001] No. 199 files of Chinese Ministry of Environmental Protection of Country family environment-development about the relevant Regulations of hazardous waste resource is fixed, thereby solved the resource recycling of hazardous waste, the resource benign cycle that has realized discarded object utilizes, to reduce the pollution to natural environment.
The objective of the invention is by following technical proposal Shi Now's;
A kind of light-weight environment-friendly brick made from incineration of refuse flyash, it is made by the following weight proportion raw material;
Described incineration of refuse flyash powder be with household garbage in the burning electricity generation process, residual mixture material by collected flying dust of smoke duster and smoke processing system collection, remove old metal stone impurity through sorting, magnetic separation, its particle diameter is the powder less than 5mm after deodorizing, sterilization, huge legendary turtle are closed processing.
The manufacture method of described incineration of refuse flyash light-weight environment-friendly brick, it is to be undertaken by following step:
(a) with the garbage flying ash powder of 25～50 weight portions (down with), 23～45 parts flyash, 23～45 parts river sand, 12～20 parts calcium oxide, 3～10 parts calcium sulfate, 12～20 parts cement, 0.5～3 parts sodium carbonate, 0.5～3 parts calcium chloride, 0.5～3 parts ferrous sulfate, 2～6 parts Liu Suan Magnesium, 0.1 mixing ,～0.5 part Li high molecular heavy metals trapping agent and 12～20 parts of water adopt the mechanical oscillation extrusion modling after stirring is moist shape, under the pressure of 25～30Mpa, make the garbage flying ash light-weight environment-friendly adobe of moulding
(b) again still kettle is delivered in the light-weight environment-friendly adobe after the moulding and carried out stream curing, the heating 2～3 hours that heats up was earlier spent constant temperature 5～8 hours 95～100 again, lowered the temperature 1～2 hour naturally then, made garbage flying ash light-weight environment-friendly brick product.
Its powder particle diameter of described calcium oxide and calcium sulfate is-0.2mm.
The present invention adopts domestic garbage incineration flyash; flyash and river sand are the primary raw material of light-weight environment-friendly brick; be to utilize garbage flying ash; contain a large amount of silica and the active component of alundum (Al in flyash and the river sand; with calcium oxide; calcium sulfate; cement; sodium carbonate; calcium chloride; Li high molecular heavy metals trapping thinner mixed raw material causes light-weight environment-friendly brick; do not need high-temperature roasting; utilize chemical reaction and stream curing; three-waste free discharge; save the energy; the protection environment; with ferrous sulfate is reducing agent; magnesium sulfate is the retention agent of ferrous sulfate, and the smell in the garbage flying ash is fully decomposed, and reaches the purpose of rapid deodorize.
The manufacture method of light-weight environment-friendly brick of the present invention is garbage flying ash powder, flyash powder, river sand, calcium oxide, calcium sulfate, cement, sodium carbonate, calcium chloride, ferrous sulfate, magnesium sulfate, the agent of Li high molecular heavy metals trapping and water to be mixed use the mechanical oscillation extrusion modling after stirring is moist shape, makes light-weight environment-friendly brick under the pressure of 25～30Mpa.Again the adobe of forming is transported to still kettle with the track flat car through rail and carries out stream curing, the heating 2～3 hours that heats up was earlier spent constant temperature 5～8 hours 95～100 again, lowered the temperature 1～2 hour naturally then, made the light-weight environment-friendly brick product.
Household garbage is in the burning electricity generation process, residual mixture material by collected flying dust of smoke duster and smoke processing system collection, behind sorting, magnetic separation, removal old metal stone impurity, powder after deodorizing, sterilization adopts the agent of Li high molecular heavy metals trapping that flying dust is handled, and makes garbage flying ash reach the Strongization chemical stabilization, through mediating and maintenance, heavy metal element is captured, generates the chelate of cross-linked structure, realized the efficient stableization of garbage flying ash.
The flyash that the present invention selects for use is a kind of mixed material like the volcano grey matter that coal dust forms after the high-temp combustion generating.Be a kind of solid waste of coal-fired power plant's discharging, main component is chemical compositions such as silica, alundum (Al, di-iron trioxide, calcium oxide, with coagulating hardening performance shown after lime, the cement mixing.Contain various active oxide such as sio
2, AI
2O
3, they respectively with calcium hydroxide at normal temperatures chemically reactive generate more stable aquation ca aluminosilicate.Therefore flyash is the same with other pozzolanic materials, after mixing and stirring with alkaline matter mixing and water addings such as lime, cement, and can setting and harden and have certain Strong degree.Its loose dry density is 600～1000kg/m
3, fineness is generally 45um; Containing a large amount of ganoid glass microballoons, have energy in the higher chemistry, is the main source of flyash activity.
Used river sand is rivers sand and sea sand, removes stone impurity through sorting, and earth content is less than 5%, its particle diameter is-and the powder of 5mm;
Used calcium oxide, calcium sulfate powder particle diameter are-0.2mm.
Also can be made into the building-block and the pavement bricks of different size with raw material of the present invention.
The light-weight environment-friendly brick of producing according to the technology of the present invention, through the relevant building materials quality detection department check of Country family's regulation, every technical indicator all reaches the construction material standard-required that Country family stipulates.
Testing result is as follows through building material product quality inspection center, Guangdong Construction Academy:
The light-weight environment-friendly solid brick detects: according to Guangzhou capital construction commission file: (2002) No. 15 literary compositions of fringe building and JC525-93 standard.Specification: 240x115x53mm.
A) compressive strength: 10 average: 12Mpa, monolithic minimum value: 10.4Mpa.
B) anti-folding Strong degree: average: 2.7Mpa, monolithic minimum value: 2.4Mpa.
C) water absorption rate 16.4%.
D) bulk density is: 1500Kg/m
3
E) radioactivity: internal radiation: 0.33, external exposure: 0.61, be better than national standard.Test basis: GB6566-2001 " the radioactive material nucleic is limited the quantity of "
The test basis of light-weight hollow building block made: GB/T15229-2002, specification is: 390X190X190mm, compressive strength average is: 6.1Mpa, the monolithic minimum value is: 5.3Mpa, dry apparent density is: 1152Kg/m
3, contract with dry rate is: 0.023%, all be better than 5.0 grades the standard that Country family stipulates.
Light-weight environment-friendly brick is tested according to GB6566-2001 " the radioactive material nucleic is limited the quantity of ", and its result is:
Internal radiation index (I
Ra), standard≤1.0, detected value is 0.33, it is qualified to judge.
External exposure index (I
r), standard≤1.0, detected value is 0.61, it is qualified to judge
Radionuclide specific activity (Bq/kg):
226Ra：66.72，
232Th：72.29，
40k：623.23，
Conclusion: meet the standard-required of building material of main part, its production and marketing and the scope of application are unrestricted.
Owing to take technique scheme the technology of the present invention compared with the prior art to have following advantage and effect:
A) garbage flying ash light-weight environment-friendly brick of the present invention, because the relative density of flying dust and flyash is littler than clay, each piece light-weight environment-friendly brick is than more than the light 0.5kg of clay solid brick, and it is lighter more than 30% than stone flour cement block to make building-block, therefore can alleviate the deadweight of building and the application life of prolongation high-rise building;
B) production technology is simple, and three-waste free discharge meets No. 66 literary compositions of Country affair institute " about greatly developing new construction material such as the energy-conservation sharp useless thermal insulation of water saving that saves land " and requires spirit, and small investment, See imitate fast, cost is low, profitable, is fit to the factories that do at different levels;
C) utilize garbage flying ash, flyash and other industrial residue brickmaking to substitute traditional solid clay brick, be green building material, development prospect is widely arranged;
D) comprehensive utilization of resources for garbage flying ash, flyash and other industrial residues provides good in economic efficiency technology.
E) having solved garbage flying ash needs the difficult problem that takies a large amount of land resources and cause secondary pollution easily in the landfill process, both protected environment, has saved the soil again.
The specific embodiment:
Embodiment 1
With household garbage in the burning electricity generation process, residual mixture material by collected flying dust of smoke duster and smoke processing system collection, through sorting, magnetic separation, remove old metal stone impurity, through deodorizing, sterilization, huge legendary turtle is made powder after processing such as closing, get incineration of refuse flyash powder 25kg, flyash 23kg, get the river sand 23kg of particle diameter for-5mm, particle diameter is the calcium oxide 12kg of 0.2mm, calcium sulfate 5kg, cement 15kg, sodium carbonate 0.5kg, calcium chloride 0.5kg, ferrous sulfate 0.5kg, magnesium sulfate 2kg, Li high molecular heavy metals trapping agent 0.1kg and water 12kg, above-mentioned raw materials mix stirred use the mechanical oscillation extrusion modling after being moist shape, under the pressure of 28Mpa, make the garbage flying ash light-weight environment-friendly brick, again the adobe of forming is transported to still kettle with the track flat car via rail and carries out stream curing, rise earlier Warm heating 2 hours, spent again constant temperature 8 hours 95～100, naturally lowered the temperature 1 hour again, make the light-weight environment-friendly brick product.Average after testing resistance to compression Strong degree is: 12Mpa, rupture strength is: 2.7Mpa.
Embodiment 2
Get the incineration of refuse flyash powder 30kg of embodiment 1, flyash 25kg, get the river sand 28kg of particle diameter for-5mm, particle diameter is the calcium oxide 14g of 0.2mm, calcium sulfate 3kg, cement 12kg, sodium carbonate 1kg, calcium chloride 0.8kg, ferrous sulfate 1kg, magnesium sulfate 3kg, Li high molecular heavy metals trapping agent 0.3kg and water 14kg, above-mentioned raw materials mix stirred use the mechanical oscillation extrusion modling after being moist shape, under the pressure of 25Mpa, make the garbage flying ash light-weight environment-friendly brick, again the adobe of forming is carried out stream curing with still kettle, heating 2.5 hours heats up earlier, spent again constant temperature 6 hours 95～100, naturally fall Warm again 1.5 hours, and made the light-weight environment-friendly brick product.Average after testing resistance to compression Strong degree is: 10Mpa, anti-folding Strong degree is: 2.5Mpa.
Embodiment 3
Get the garbage flying ash powder 23kg of embodiment 1, flyash 20kg, get the river sand 25kg of particle diameter for-5mm, particle diameter is-the calcium oxide 15kg of 0.2mm, calcium sulfate 6kg, cement 13kg, sodium carbonate 0.8kg, calcium chloride 1kg, ferrous sulfate 0.8kg, magnesium sulfate 2.5kg, Li high molecular heavy metals trapping agent 0.5kg and water 13kg, to use the mechanical oscillation extrusion modling behind the moist shape of above-mentioned raw materials mixing stirring, under the pressure of 30Mpa, make the garbage flying ash building-block, carry out stream curing with still kettle, heated up 3 hours earlier, spent again constant temperature 5 hours 95～100, naturally lowered the temperature 2 hours again, make the light-weight hollow building block made product.Mean compressive strength is after testing: 6.1Mpa, the monolithic minimum value is: 5.3Mpa, dry apparent density is: 1152kg/m
3, contract with dry rate is: 0.023%, all be better than 5.0 grades standard of national regulation.
Embodiment 4
Get the incineration of refuse flyash powder 4kg of embodiment 1, flyash 35kg, get the river sand 40kg of particle diameter for-5mm, particle diameter is the calcium oxide 18kg of 0.2mm, calcium sulfate 8kg, cement 18kg, sodium carbonate 2kg, calcium chloride 2kg, ferrous sulfate 2kg, magnesium sulfate 5kg, Li high molecular heavy metals trapping agent 0.4kg and water 18kg, above-mentioned raw materials mix stirred use the mechanical oscillation extrusion modling after being moist shape, under being, the pressure of 25Mpa makes the garbage flying ash light-weight environment-friendly brick, again the adobe of forming is carried out stream curing with still kettle, heating 2.5 hours heats up earlier, spent again constant temperature 6 hours 95～100, naturally lowered the temperature 1.5 hours again, make the light-weight environment-friendly brick product.Average after testing resistance to compression Strong degree is: 10Mpa, anti-folding Strong degree is: 2.5Mpa.
Embodiment 5
Get the incineration of refuse flyash powder 50kg of embodiment 1, flyash 45kg, get the river sand 45kg of particle diameter for-5mm, particle diameter is the calcium oxide 20kg of 0.2mm, calcium sulfate 10kg, cement 20kg, sodium carbonate 3kg, calcium chloride 3kg, ferrous sulfate 3kg, magnesium sulfate 6kg, Li high molecular heavy metals trapping agent 0.5kg and water 20kg, above-mentioned raw materials mix stirred use the mechanical oscillation extrusion modling after being moist shape, under the pressure of 30Mpa, make the garbage flying ash light-weight environment-friendly brick, again the adobe of forming is carried out stream curing with still kettle, heating 3 hours heats up earlier, spent again constant temperature 6 hours 95～100, naturally lowered the temperature 2 hours again, make the light-weight environment-friendly brick product.Average after testing resistance to compression Strong degree is: 10.4Mpa, anti-folding Strong degree is: 2.4Mpa.
Claims (3)
1. light-weight environment-friendly brick made from incineration of refuse flyash is characterized in that it is made by the following weight proportion raw material;
Described incineration of refuse flyash powder be with household garbage in the burning electricity generation process, residual mixture material by collected flying dust of smoke duster and smoke processing system collection, remove old metal stone impurity through sorting, magnetic separation, its particle diameter is the powder less than 5mm after deodorizing, sterilization, huge legendary turtle are closed processing.
2. as the manufacture method of incineration of refuse flyash light-weight environment-friendly brick according to claim 1, it is characterized in that it is undertaken by following step:
(a) with the garbage flying ash powder of 25～50 weight portions (down with), 23～45 parts flyash, 23～45 parts river sand, 12～20 parts calcium oxide, 3～10 parts calcium sulfate, 12～20 parts cement, 0.5～3 parts sodium carbonate, 0.5～3 parts calcium chloride, 0.5～3 parts ferrous sulfate, 2～6 parts Liu Suan Magnesium, 0.1 mixing ,～0.5 part Li high molecular heavy metals trapping agent and 12～20 parts of water adopt the mechanical oscillation extrusion modling after stirring is moist shape, under the pressure of 25～30Mpa, make the garbage flying ash light-weight environment-friendly adobe of moulding
(b) again still kettle is delivered in the light-weight environment-friendly adobe after the moulding and carried out stream curing, the heating 2～3 hours that heats up was earlier spent constant temperature 5～8 hours 95～100 again, lowered the temperature 1～2 hour naturally then, made garbage flying ash light-weight environment-friendly brick product.
3. garbage flying ash light-weight environment-friendly brick according to claim 1 and 2 is characterized in that its powder particle diameter of described calcium oxide and calcium sulfate is-0.2mm.
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| CN102659372B (en) * | 2012-04-23 | 2014-04-09 | 长安大学 | Light building material manufactured through waste incineration ash and manufacturing method |
| WO2016011668A1 (en) * | 2014-07-25 | 2016-01-28 | Shandong V-Tong Science And Technology Co., Ltd. | Method for producing ceramic tiles using coal combustion waste |
| CN104803705B (en) * | 2015-04-07 | 2017-03-22 | 镇江新宇固体废物处置有限公司 | Method for preparing lightweight wallboard from solid waste incineration waste residues |
| CN105503058A (en) * | 2015-09-09 | 2016-04-20 | 杭州来宝得新材料科技有限公司 | Thermal insulation concrete building block |
| CN105541142B (en) * | 2015-12-18 | 2017-10-13 | 淮安市水泥厂有限公司 | A kind of rubbish ash is used as the processing method of cement ingredient |
| CN106336159A (en) * | 2016-08-12 | 2017-01-18 | 王涛 | Multifunctional ecological brick and preparation method and use thereof |
| CN110776302B (en) * | 2019-11-14 | 2022-08-16 | 江苏德昶环保科技有限公司 | Process method for modifying waste incineration fly ash into composite cementing material |
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