CN1420097A - Technique for producing non-extrusion clayless solid slag sintering brick - Google Patents
Technique for producing non-extrusion clayless solid slag sintering brick Download PDFInfo
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- CN1420097A CN1420097A CN02128058A CN02128058A CN1420097A CN 1420097 A CN1420097 A CN 1420097A CN 02128058 A CN02128058 A CN 02128058A CN 02128058 A CN02128058 A CN 02128058A CN 1420097 A CN1420097 A CN 1420097A
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- Prior art keywords
- main raw
- waste
- slag
- raw material
- sodium
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- 239000002893 slag Substances 0.000 title claims abstract description 28
- 238000000034 method Methods 0.000 title claims abstract description 23
- 238000005245 sintering Methods 0.000 title claims abstract description 17
- 239000011449 brick Substances 0.000 title claims description 39
- 238000001125 extrusion Methods 0.000 title description 5
- 239000007787 solid Substances 0.000 title description 4
- 239000002994 raw material Substances 0.000 claims abstract description 41
- 239000010881 fly ash Substances 0.000 claims abstract description 37
- 239000000654 additive Substances 0.000 claims abstract description 34
- 230000000996 additive effect Effects 0.000 claims abstract description 26
- 239000002699 waste material Substances 0.000 claims abstract description 21
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims abstract description 18
- 238000004519 manufacturing process Methods 0.000 claims abstract description 17
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims abstract description 17
- 235000019353 potassium silicate Nutrition 0.000 claims abstract description 14
- 238000001035 drying Methods 0.000 claims abstract description 10
- 238000002156 mixing Methods 0.000 claims abstract description 10
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 9
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims abstract description 9
- 238000000465 moulding Methods 0.000 claims abstract description 9
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 claims abstract description 5
- 239000000292 calcium oxide Substances 0.000 claims abstract description 5
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims abstract description 5
- 238000001723 curing Methods 0.000 claims abstract description 4
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims abstract description 4
- 239000004576 sand Substances 0.000 claims abstract description 4
- 239000002910 solid waste Substances 0.000 claims abstract 9
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims abstract 4
- 239000010802 sludge Substances 0.000 claims abstract 2
- 239000002245 particle Substances 0.000 claims description 16
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 15
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 13
- PUZPDOWCWNUUKD-UHFFFAOYSA-M sodium fluoride Chemical compound [F-].[Na+] PUZPDOWCWNUUKD-UHFFFAOYSA-M 0.000 claims description 12
- 235000010339 sodium tetraborate Nutrition 0.000 claims description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 229910021538 borax Inorganic materials 0.000 claims description 9
- 239000011521 glass Substances 0.000 claims description 9
- 239000004328 sodium tetraborate Substances 0.000 claims description 9
- 229920002678 cellulose Polymers 0.000 claims description 8
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 7
- 239000001913 cellulose Substances 0.000 claims description 6
- 235000010980 cellulose Nutrition 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 6
- 239000011775 sodium fluoride Substances 0.000 claims description 6
- 235000013024 sodium fluoride Nutrition 0.000 claims description 6
- -1 tailings Substances 0.000 claims description 6
- 235000011121 sodium hydroxide Nutrition 0.000 claims description 5
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 4
- RGPUVZXXZFNFBF-UHFFFAOYSA-K diphosphonooxyalumanyl dihydrogen phosphate Chemical compound [Al+3].OP(O)([O-])=O.OP(O)([O-])=O.OP(O)([O-])=O RGPUVZXXZFNFBF-UHFFFAOYSA-K 0.000 claims description 4
- 239000002440 industrial waste Substances 0.000 claims description 4
- 239000011574 phosphorus Substances 0.000 claims description 4
- 229910052698 phosphorus Inorganic materials 0.000 claims description 4
- 229910052814 silicon oxide Inorganic materials 0.000 claims description 4
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 3
- 239000007864 aqueous solution Substances 0.000 claims description 3
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 3
- 238000001354 calcination Methods 0.000 claims description 2
- 239000004115 Sodium Silicate Substances 0.000 claims 3
- 229910052911 sodium silicate Inorganic materials 0.000 claims 3
- 239000001569 carbon dioxide Substances 0.000 claims 1
- 229910002092 carbon dioxide Inorganic materials 0.000 claims 1
- 230000018044 dehydration Effects 0.000 claims 1
- 238000006297 dehydration reaction Methods 0.000 claims 1
- 238000010583 slow cooling Methods 0.000 claims 1
- PVGBHEUCHKGFQP-UHFFFAOYSA-N sodium;n-[5-amino-2-(4-aminophenyl)sulfonylphenyl]sulfonylacetamide Chemical compound [Na+].CC(=O)NS(=O)(=O)C1=CC(N)=CC=C1S(=O)(=O)C1=CC=C(N)C=C1 PVGBHEUCHKGFQP-UHFFFAOYSA-N 0.000 claims 1
- 239000000126 substance Substances 0.000 claims 1
- 239000004927 clay Substances 0.000 abstract description 19
- 239000011230 binding agent Substances 0.000 abstract description 7
- 239000000463 material Substances 0.000 abstract description 7
- 239000003245 coal Substances 0.000 abstract description 6
- 235000008733 Citrus aurantifolia Nutrition 0.000 abstract description 2
- 235000011941 Tilia x europaea Nutrition 0.000 abstract description 2
- 239000004566 building material Substances 0.000 abstract description 2
- 239000004568 cement Substances 0.000 abstract description 2
- 239000004571 lime Substances 0.000 abstract description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract 2
- 239000011451 fired brick Substances 0.000 abstract 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 abstract 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract 1
- 229910052782 aluminium Inorganic materials 0.000 abstract 1
- BHEPBYXIRTUNPN-UHFFFAOYSA-N hydridophosphorus(.) (triplet) Chemical compound [PH] BHEPBYXIRTUNPN-UHFFFAOYSA-N 0.000 abstract 1
- 229910052710 silicon Inorganic materials 0.000 abstract 1
- 239000010703 silicon Substances 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 11
- 239000002585 base Substances 0.000 description 8
- 239000006063 cullet Substances 0.000 description 7
- 239000000758 substrate Substances 0.000 description 7
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 6
- 239000010883 coal ash Substances 0.000 description 6
- 238000001816 cooling Methods 0.000 description 6
- 239000004615 ingredient Substances 0.000 description 6
- 239000011734 sodium Substances 0.000 description 6
- 229910052708 sodium Inorganic materials 0.000 description 6
- 230000006835 compression Effects 0.000 description 5
- 238000007906 compression Methods 0.000 description 5
- 238000000227 grinding Methods 0.000 description 5
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 4
- 238000005266 casting Methods 0.000 description 4
- 238000009413 insulation Methods 0.000 description 4
- 235000017550 sodium carbonate Nutrition 0.000 description 4
- 239000000843 powder Substances 0.000 description 3
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 239000002956 ash Substances 0.000 description 2
- 239000012752 auxiliary agent Substances 0.000 description 2
- 238000005056 compaction Methods 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000000748 compression moulding Methods 0.000 description 2
- 239000004035 construction material Substances 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 238000011049 filling Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 235000015424 sodium Nutrition 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 235000002918 Fraxinus excelsior Nutrition 0.000 description 1
- 102000004160 Phosphoric Monoester Hydrolases Human genes 0.000 description 1
- 108090000608 Phosphoric Monoester Hydrolases Proteins 0.000 description 1
- 239000006004 Quartz sand Substances 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 235000019270 ammonium chloride Nutrition 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 229910052787 antimony Inorganic materials 0.000 description 1
- WATWJIUSRGPENY-UHFFFAOYSA-N antimony atom Chemical compound [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 0.000 description 1
- 238000011074 autoclave method Methods 0.000 description 1
- 229910000281 calcium bentonite Inorganic materials 0.000 description 1
- 235000011089 carbon dioxide Nutrition 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000013467 fragmentation Methods 0.000 description 1
- 238000006062 fragmentation reaction Methods 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- NDLPOXTZKUMGOV-UHFFFAOYSA-N oxo(oxoferriooxy)iron hydrate Chemical compound O.O=[Fe]O[Fe]=O NDLPOXTZKUMGOV-UHFFFAOYSA-N 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 235000019980 sodium acid phosphate Nutrition 0.000 description 1
- AJPJDKMHJJGVTQ-UHFFFAOYSA-M sodium dihydrogen phosphate Chemical compound [Na+].OP(O)([O-])=O AJPJDKMHJJGVTQ-UHFFFAOYSA-M 0.000 description 1
- 239000001488 sodium phosphate Substances 0.000 description 1
- 229910000162 sodium phosphate Inorganic materials 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- OBSZRRSYVTXPNB-UHFFFAOYSA-N tetraphosphorus Chemical compound P12P3P1P32 OBSZRRSYVTXPNB-UHFFFAOYSA-N 0.000 description 1
- RYFMWSXOAZQYPI-UHFFFAOYSA-K trisodium phosphate Chemical compound [Na+].[Na+].[Na+].[O-]P([O-])([O-])=O RYFMWSXOAZQYPI-UHFFFAOYSA-K 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- 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
Landscapes
- Processing Of Solid Wastes (AREA)
Abstract
本发明涉及一种用工业固体废渣制造烧结砖的生产方法，该烧结砖是一种免挤压、无粘土的环保型建筑材料。其主原料是工业固体废渣包括粉煤灰、尾矿、磷渣、废砂、炉渣、赤泥、硫酸渣、污泥，配以磷酸为主或水玻璃为主的两个不同体系的添加剂，根据主原料中含硅、铝、铁、钙氧化物的多少进行配比，经混合、浇注、固化、干燥、烧结等工序而得。本发明不用粘土、水泥、石灰等原料为粘结剂，成型采用浇注和振动成型方式，因此，提高了废物综合利用率，减少了天然资源的使用量，降低了生产投资、电耗、煤耗及生产成本。产品性能可与普通粘土烧结砖同比。是一种极具开发前景的建筑墙体材料。The invention relates to a production method of using industrial solid waste slag to manufacture fired bricks, which are extrusion-free and clay-free environment-friendly building materials. Its main raw material is industrial solid waste, including fly ash, tailings, phosphorous slag, waste sand, slag, red mud, sulfuric acid slag, sludge, with two different additive systems mainly phosphoric acid or water glass. According to the proportion of silicon, aluminum, iron and calcium oxide contained in the main raw materials, it is obtained through mixing, pouring, curing, drying, sintering and other processes. The present invention does not use clay, cement, lime and other raw materials as binders, and adopts pouring and vibration molding methods for forming, so the comprehensive utilization rate of waste is improved, the usage of natural resources is reduced, and production investment, power consumption, coal consumption and Cost of production. Product performance can be compared with ordinary clay fired bricks. It is a very promising building wall material.
Description
One, affiliated technical field: material of construction
Two, background technology:
Clay brick, still widely adopts at the existing thousands of years applicating histories of China so far as typical case's representative of " Qin brick and Han tile ".So-called clay brick is to be that raw material is through blank forming with the clay, the most widely used construction material that high temperature sintering forms, the production of clay brick and use not only destroy environment, reduce and plough, and the waste resource and the energy, be the backward products that country forbids and limit use.For the instead of clay brick, and utilize industrial waste, make the technology of novel wall material with industrial waste and just carried out the sixties, and formed with sintering process, autoclave method, non-autoclaved and unburned three kinds of representative processes technology in China.Wherein coal ash sintering brick, coal gangue baked brick are the representatives of sintering process.So-called coal ash sintering brick is to be main raw material with flyash and clay, the construction material that is made through operations such as raw material ageing, batching, mixing, extrusion molding, drying and roastings.Fired fly ash brick is in the history in existing more than 40 year of China, original adoption plasticity expressing technique, and doping quantity of fly ash is generally about 25%; In recent years, some units adopt and mould expressing technique firmly with the higher clay (about plasticity index 18) of plasticity-, make doping quantity of fly ash bring up to 45%.In order further to improve the volume of flyash, some units have adopted the method for compression moulding, and the volume of flyash is brought up to more than 70%.Without clay, adopt small amounts of inorganic or organic binder bond, improve doping quantity of fly ash, closely produce the made from full fly ash vitrified brick, will be to be an outlet of the brickmaking enterprise of raw material with flyash.
Traditional coal ash sintering brick moulding process has two kinds: extrusion moulding and half-dried molded.Because flyash is a kind of lean property material, plasticity is poor, and extruding-out process requires compound to have good plasticity, and makes green compact have certain intensity, and this just must take measures from the plasticity and the ratio of forcing machine and clay.The flyash add-on is too high, and plasticity is extruded difficulty, and green body quality is poor, and is big to the wearing and tearing of equipment; If force to extrude, and improve the addition content of flyash, just must adopt the scheme of high-power, high vacuum and outer adding additives, this can increase investment undoubtedly again, raise the cost.Facts have proved: when the volume of flyash is 60%, the vitrified brick that adopts expressing technique to produce, the scrap rate height, cost is also higher than low-dosage flyash.Half-dried molded mode also must use clay to be binding agent, just owing to the molding mode difference, the volume of flyash can improve, but the amplitude that improves is limited, its reason is: flyash is generally very thin, grain composition is even, and during compression moulding, base substrate slabbing phenomenon is very general, in order to overcome this technical problem, the necessary an amount of coarse aggregate of admixture (as furnace bottom slag, quartz sand, slag), coarse aggregate does not play a role very little; Aggregate is too many, has reduced the ratio of flyash again, and influences product performance.Therefore, from principle analysis as can be known, can not produce the made from full fly ash vitrified brick with traditional forming method.
In recent years, the flyash consumption is improving in a lot of entity and individual, improves the prescription aspect of baking bricks and develops, and obtained progress in succession, and disclose some patented technologies:
Chinese patent 1049148 (publication number) discloses a kind of fine coal ash sintered brick prescription, and filling a prescription is: flyash 30～80%, swelling soil 20～50%, coal gangue 10～30%, borax 1～5%; 1121920 (publication numbers) disclose a kind of clay-free flyash sintered brick and method for making, and filling a prescription is: flyash 80～97%, calcium bentonite 3～20%; 1200361 (publication numbers) disclose a kind of manufacture craft of coal ash sintering brick, and employed raw material is a flyash, pearlstone, wilkinite, clay.128705 (publication numbers) disclose a kind of high-dosage flyash sintered brick and production method, and its prescription is: flyash 70～90%, earth 30～10%, alkali sodium acid phosphate 0.5～1.5%, ammonium chloride 0.1～0.8%; CN1325831A discloses a kind of production technique of coal ash sintering brick, and its prescription is flyash 80～90%, clay 17～4%, and fusing assistant 3～6%, wherein fusing assistant is made up of by 5/2/3 alkali, glass cullet, hydromica; CN1091404A discloses and has a kind ofly made the method for colour glazed tile and pantile with copper slag, and its notable feature has been to use elder generation to want the high ferro waste residue of calcination process, and is binding agent with phosphoric acid or aluminium dihydrogen phosphate; It is the method for the building materials article of main raw material with glass cullet that CN1358583A discloses a kind of, its prescription feature is: glass/auxiliary agent/flyash/water glass=100/2～4/200～400/20～40, wherein auxiliary agent is the title complex of borax, yellow soda ash, antimony bloom, graphite etc.
With regard to vitrified brick, be that main raw material manufacturing vitrified brick is the most representative with flyash, coal gangue, but, be not difficult to find following characteristics from present technology:
(1) molding mode: no matter be conventional art or disclosed patented technology, two kinds are only extruded and suppressed to the green compact molding mode of vitrified brick;
(2) prescription: conventional art mainly is binding agent with the clay; No loam mould is binding agent with the wilkinite; In some prescriptions, fusing assistant such as borax, sodium phosphate etc. have been adopted.
Take a broad view of conventional art,, the mass ratio of flyash in brick do not appeared in the newspapers as yet greater than 90% Technology without clay (comprising), without extrusion molding without wilkinite.
Three, summary of the invention 1, purpose of the present invention
Remain mass-producing with industrial residue manufacturing vitrified brick and utilize one of main technological route of waste.Therefore, the objective of the invention is: must use clay, high-pressure molding, doping quantity of fly ash is low and cost is high problem at traditional waste residue vitrified brick, invent a kind of without clay, need not push and but can increase substantially the ash industrial waste residues consumption, reduce a kind of brick-making technology of producing investment and production cost.The present invention will produce positive effect to the large utilization of industrial residue, protection environment, saving natural resource.2, technology contents of the present invention
1) raw material of the present invention:
(1) main raw material: industrial residue, comprise flyash, mine tailing, phosphorus slag, antiquated sand, slag, red mud, sulfate slag, mud, they both can use separately, but also two or more mix and match uses;
(2) additive: be made up of two kinds of systems, system 1 is a major ingredient by phosphoric acid or aluminium dihydrogen phosphate, cooperates to adopt water glass, yellow soda ash, Sodium Fluoride, borax, Sodium Silicofluoride, Mierocrystalline cellulose, cullet; System 2 is a major ingredient with water glass, cooperates to adopt water glass, yellow soda ash, caustic soda, Sodium Fluoride, borax, Sodium Silicofluoride, Mierocrystalline cellulose, cullet;
(3) material fiting ratio:
The proportioning scope such as the following table of main raw material and additive.
| Formula system | Main raw material | Additive is formed (mass ratio is the % of main raw material) | |||||||||
| Phosphoric acid | Water glass | Water glass | Yellow soda ash | Caustic soda | Sodium Fluoride | Borax | Sodium Silicofluoride | Mierocrystalline cellulose | Cullet | ||
| System 1 (%) | 100 | ?1.5～9 | ?0.2～5 | ?0～2 | ??0～3 | ??0～3 | ??0.3～3 | ????0～5 | ??0～3 | ??0～5 | |
| System 2 (%) | 100 | ?3～9 | ?0～4 | ?0～3 | ?0～2 | 0.2～1.5 | ??0～0.9 | ??0.3～1.0 | ??0～3 | ??0～5 | |
(4) Pei Fang the scope of application
The main raw material industrial residue that the present invention adopts comprises flyash, mine tailing, phosphorus slag, antiquated sand, slag, red mud, sulfate slag, mud, and they both can use separately, but also two or more mix and match uses.Silicon oxide and aluminum oxide sum are greater than 75% in main raw material (independent or collocation after), and perhaps silicon oxide and ferriferous oxide sum were greater than 70% o'clock, and additive can adopt two kinds of formula systems in the table; Silicon oxide, aluminum oxide, ferric oxide sum are less than 50% in main raw material, and calcium oxide was greater than 10% o'clock, and additive adopts system 2 in the table.
System 1 used phosphoric acid can use separately in the table, also can arrange in pairs or groups in 1/0.1～1 ratio with aluminium dihydrogen phosphate.2) technological process:
(1) as the solid slag of main raw material if be bulk or macrobead, at first need fragmentation, if having only a kind of waste residue to use separately, then require grinding, the particle maximum diameter is less than 0.5mm, natural grading; If two or more waste residue is used, the waste particle overall dimension that then requires main raw material is less than 3mm, and the particle overall dimension that requires at least a waste residue wherein is less than 0.1mm.The different sorts that is adopted and the waste residue of size need mix;
(2) can be dissolved in the material of water in the additive, after metering mixes, with the water dissolution that is equivalent to main raw material dry state quality 8～35%; Can not be dissolved in the additive of water such as cullet needs levigate and makes particle overall dimension less than 0.1mm, mixes with solid slag as main raw material then.
(3) even through the aqueous solution of the main raw material handled well and additive, wet mixing is more than 5～15 minutes;
(4) compound that stirs is cast in the mould (available punching block, wooden model, plastic mold) with stable dimensions vibratory compaction; Spontaneous curing demoulding after 3～24 hours;
(5) green compact are placed on the flat board that can move send into kiln, the temperature of kiln is 40～200 ℃, thermal source used vapour, electricity, coal, heavy oil; Stove tail gas preferably, and preferably contain carbonic acid gas in the tail gas greater than 0.5%, and temperature is not higher than 200 ℃; Curing room need be installed induced draft fan and be used for dehumidifier; When the base substrate water ratio less than 5% the time, drying process finishes;
(6) dried base substrate is sent into tunnel furnace or wheel kiln baking earlier through the sign indicating number base, and top temperature is 900～1150 ℃, and is incubated 1～5 hour under top temperature, becomes product after cooling off at a slow speed with stove; Waste heat in the process of cooling is used for the green compact drying.3, the advantage that compared with prior art had of present technique
The remarkable difference of the present invention and traditional brick-making technology is:
1) the present invention is a binding agent without clay, lime, cement, shale, wilkinite fully;
2) the present invention adopts cast and vibratory compaction, without forcing machine and pressing machine.
3) with the vitrified brick performance of the present invention preparation because of main raw material character that adopts and the different differences to some extent of the additive of selecting for use series, but salient features all can reach the quality index of MU10 common brick, wherein ultimate compression strength is greater than 10Mpa, and folding strength is greater than 2.7Mpa, and density is less than 1.4g/cm
3, water-intake rate is less than 23%; The size rule, outward appearance is neat, is brick-red
Difference on composition of raw materials and the molding mode makes the present invention compare tool with conventional art and has great advantage: improved the comprehensive utilization of waste materials rate, reduced the usage quantity of natural resource just; Save investment significantly, particularly reduced power consumption and coal consumption, reduced cost.
Four, description of drawings: Fig. 1 is figure technical process of the present invention:
Five, embodiment
Embodiment 1: get calcium oxide content less than 1000 parts in 8% flyash, 43 parts of additives, wherein constituting of additive: 5 parts of phosphatase 11s, 5 parts of boraxs, 20 parts of water glass, 3 parts of Mierocrystalline celluloses, 350 parts in water; Siccative mixes earlier, and additive is water-soluble, and wet mixing is the back casting evenly, the demoulding after 12 hours, 100 ℃ dry 2 hours down, base substrate is sent into the sintering that heats up at a slow speed in the stove, and 1050 ℃ of insulations 1 hour down, furnace cooling cools to and comes out of the stove after being lower than 80 ℃.The density 1.3g/cm of this brick
3, ultimate compression strength 22Mpa, folding strength 5Mpa heavily burns 5 times, and is indeformable, flawless.
Embodiment 2: get calcium oxide content less than 1000 parts in 8% flyash, 91 parts of additives, wherein additive consists of: 35 parts of water glass, 9 parts of boraxs, 10 parts of water glass, 3 parts of Mierocrystalline celluloses, 4 parts of Sodium Silicofluorides, 30 parts in glass powder, glass powder mixes 340 parts of dissolvings of its clout water earlier in the additive with flyash; The siccative and the additive aqueous solution, wet mixing is the back casting evenly, the demoulding after 5 hours, 100 ℃ dry 2 hours down, base substrate is sent into the sintering that heats up at a slow speed in the stove, and 1080 ℃ of insulations 1 hour down, furnace cooling cools to and comes out of the stove after being lower than 80 ℃.The density 1.4g/cm of this brick
3, ultimate compression strength 15Mpa, folding strength 4Mpa, brick-red, linear shrinkage ratio 3.0%.
Embodiment 3: get 980 parts of the water glass antiquated sands that molding floor produces, grinding to maximum particle size less than 1mm; 20 parts of phosphorus slags, grinding to maximum particle size less than 0.1mm; Become main raw material after mixing, 89 parts of additives, wherein consisting of of additive: 80 parts of phosphoric acid, 9 parts of boraxs), 340 parts in water; Major ingredient mixes earlier, and additive is water-soluble, and two class material wet mixings are the back casting evenly, the demoulding after 5 hours, drying is 2 hours under 100 ℃, and base substrate is sent into the sintering that heats up at a slow speed in the stove, and 1150 ℃ of down insulations 1 hour, furnace cooling cools to and comes out of the stove after being lower than 80 ℃.The density 0.9g/cm of this brick
3, ultimate compression strength 11Mpa, folding strength 2.9Mpa, white, linear shrinkage ratio is almost nil.
Embodiment 4: get 1000 parts of original state copper ashes (particle size is less than 3mm), 400 parts of yellow phosphorus slags, grinding to maximum particle size less than 0.1mm; 70 parts in cullet powder, grinding to maximum particle size less than 0.1mm; After mixing, three kinds of raw materials become main raw material, 46 parts of additives, and wherein additive consists of: 40 parts of water glass, 6 parts of Sodium Silicofluorides, 160 parts in water; Major ingredient mixes earlier, and additive is dissolved in water, in the additive Sodium Silicofluoride earlier levigate mistake to particle size less than 0.05mm, back and major ingredient be dried be mixed even; Major ingredient and additive wet mixing be the back casting evenly, the demoulding after 3 hours, 100 ℃ dry 2 hours down, base substrate is sent into the sintering that heats up at a slow speed in the stove, and 1100 ℃ of insulations 1 hour down, furnace cooling cools to and comes out of the stove after being lower than 80 ℃.The density 2.4g/cm of this brick
3, ultimate compression strength is greater than 50Mpa, folding strength 30Mpa, and shrinking percentage is almost nil.
Claims (5)
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| CNB021280584A CN1197807C (en) | 2002-12-17 | 2002-12-17 | Technique for producing non-extrusion clayless solid slag sintering brick |
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| CNB021280584A CN1197807C (en) | 2002-12-17 | 2002-12-17 | Technique for producing non-extrusion clayless solid slag sintering brick |
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| CN1197807C CN1197807C (en) | 2005-04-20 |
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