CN108793815A - A kind of technique of ardealite and red mud relieving haperacidity coproduction concrete accelerator - Google Patents
A kind of technique of ardealite and red mud relieving haperacidity coproduction concrete accelerator Download PDFInfo
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- CN108793815A CN108793815A CN201810712987.8A CN201810712987A CN108793815A CN 108793815 A CN108793815 A CN 108793815A CN 201810712987 A CN201810712987 A CN 201810712987A CN 108793815 A CN108793815 A CN 108793815A
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- red mud
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- ardealite
- concrete accelerator
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- 239000004567 concrete Substances 0.000 title claims abstract description 59
- 238000000034 method Methods 0.000 title claims abstract description 39
- CDBYLPFSWZWCQE-UHFFFAOYSA-L sodium carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims abstract description 46
- 239000000843 powder Substances 0.000 claims abstract description 42
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 40
- 239000007787 solid Substances 0.000 claims abstract description 36
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims abstract description 33
- 239000002994 raw material Substances 0.000 claims abstract description 27
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 24
- 239000001187 sodium carbonate Substances 0.000 claims abstract description 23
- 229910000029 sodium carbonate Inorganic materials 0.000 claims abstract description 23
- PNEYBMLMFCGWSK-UHFFFAOYSA-N al2o3 Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims abstract description 21
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 20
- 235000013312 flour Nutrition 0.000 claims abstract description 17
- 239000007788 liquid Substances 0.000 claims abstract description 17
- NWONKYPBYAMBJT-UHFFFAOYSA-L Zinc sulfate Chemical compound [Zn+2].[O-]S([O-])(=O)=O NWONKYPBYAMBJT-UHFFFAOYSA-L 0.000 claims abstract description 16
- 239000003638 reducing agent Substances 0.000 claims abstract description 16
- 229960001763 zinc sulfate Drugs 0.000 claims abstract description 16
- 229910000368 zinc sulfate Inorganic materials 0.000 claims abstract description 16
- 238000005188 flotation Methods 0.000 claims abstract description 11
- 239000000126 substance Substances 0.000 claims abstract description 11
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 10
- VUKAUDKDFVSVFT-UHFFFAOYSA-N 2-[6-[4,5-bis(2-hydroxypropoxy)-2-(2-hydroxypropoxymethyl)-6-methoxyoxan-3-yl]oxy-4,5-dimethoxy-2-(methoxymethyl)oxan-3-yl]oxy-6-(hydroxymethyl)-5-methoxyoxane-3,4-diol Chemical compound COC1C(OC)C(OC2C(C(O)C(OC)C(CO)O2)O)C(COC)OC1OC1C(COCC(C)O)OC(OC)C(OCC(C)O)C1OCC(C)O VUKAUDKDFVSVFT-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000000654 additive Substances 0.000 claims abstract description 9
- 230000000996 additive Effects 0.000 claims abstract description 9
- 239000001866 hydroxypropyl methyl cellulose Substances 0.000 claims abstract description 9
- 235000010979 hydroxypropyl methyl cellulose Nutrition 0.000 claims abstract description 9
- 229920003088 hydroxypropyl methyl cellulose Polymers 0.000 claims abstract description 9
- 238000000926 separation method Methods 0.000 claims abstract description 8
- 238000001704 evaporation Methods 0.000 claims abstract description 5
- 150000003568 thioethers Chemical class 0.000 claims abstract 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 27
- 229910052760 oxygen Inorganic materials 0.000 claims description 12
- 239000001301 oxygen Substances 0.000 claims description 12
- MYMOFIZGZYHOMD-UHFFFAOYSA-N oxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 claims description 12
- 238000006243 chemical reaction Methods 0.000 claims description 11
- 238000004090 dissolution Methods 0.000 claims description 9
- -1 hydroxypropyl Chemical group 0.000 claims description 9
- 235000011121 sodium hydroxide Nutrition 0.000 claims description 9
- 229920002678 cellulose Polymers 0.000 claims description 8
- 239000001913 cellulose Substances 0.000 claims description 8
- 239000011734 sodium Substances 0.000 claims description 8
- GNTDGMZSJNCJKK-UHFFFAOYSA-N Vanadium(V) oxide Chemical compound O=[V](=O)O[V](=O)=O GNTDGMZSJNCJKK-UHFFFAOYSA-N 0.000 claims description 7
- UGFAIRIUMAVXCW-UHFFFAOYSA-N carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 7
- 238000006555 catalytic reaction Methods 0.000 claims description 7
- 239000003546 flue gas Substances 0.000 claims description 7
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 5
- RHZUVFJBSILHOK-UHFFFAOYSA-N anthracen-1-ylmethanolate Chemical compound C1=CC=C2C=C3C(C[O-])=CC=CC3=CC2=C1 RHZUVFJBSILHOK-UHFFFAOYSA-N 0.000 claims description 4
- 239000003830 anthracite Substances 0.000 claims description 4
- 229910052799 carbon Inorganic materials 0.000 claims description 4
- 238000004131 Bayer process Methods 0.000 claims 1
- 229940091251 Zinc Supplements Drugs 0.000 claims 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims 1
- 239000011701 zinc Substances 0.000 claims 1
- 229910052725 zinc Inorganic materials 0.000 claims 1
- 239000002699 waste material Substances 0.000 abstract description 5
- 239000011499 joint compound Substances 0.000 description 45
- 150000004763 sulfides Chemical class 0.000 description 17
- 229910001388 sodium aluminate Inorganic materials 0.000 description 11
- IYJYQHRNMMNLRH-UHFFFAOYSA-N Sodium aluminate Chemical compound [Na+].O=[Al-]=O IYJYQHRNMMNLRH-UHFFFAOYSA-N 0.000 description 9
- 239000004411 aluminium Substances 0.000 description 6
- 229910052782 aluminium Inorganic materials 0.000 description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminum Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 6
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium monoxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- NBIIXXVUZAFLBC-UHFFFAOYSA-N phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 4
- 229910052681 coesite Inorganic materials 0.000 description 3
- 229910052906 cristobalite Inorganic materials 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 229910052904 quartz Inorganic materials 0.000 description 3
- 229910052682 stishovite Inorganic materials 0.000 description 3
- 229910052905 tridymite Inorganic materials 0.000 description 3
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L Calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 2
- 239000005864 Sulphur Substances 0.000 description 2
- 229910001884 aluminium oxide Inorganic materials 0.000 description 2
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 2
- YVKMMZAFUFUAAX-UHFFFAOYSA-N aluminum;tetrahydrate Chemical compound O.O.O.O.[Al] YVKMMZAFUFUAAX-UHFFFAOYSA-N 0.000 description 2
- SMYKVLBUSSNXMV-UHFFFAOYSA-J aluminum;tetrahydroxide Chemical compound [OH-].[OH-].[OH-].[OH-].[Al+3] SMYKVLBUSSNXMV-UHFFFAOYSA-J 0.000 description 2
- 229910052925 anhydrite Inorganic materials 0.000 description 2
- 229910001570 bauxite Inorganic materials 0.000 description 2
- 239000004566 building material Substances 0.000 description 2
- 239000004568 cement Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000004615 ingredient Substances 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- MBMLMWLHJBBADN-UHFFFAOYSA-N iron-sulfur Chemical compound [Fe]=S MBMLMWLHJBBADN-UHFFFAOYSA-N 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
- WNROFYMDJYEPJX-UHFFFAOYSA-K Aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 description 1
- JHLNERQLKQQLRZ-UHFFFAOYSA-N Calcium silicate Chemical compound [Ca+2].[Ca+2].[O-][Si]([O-])([O-])[O-] JHLNERQLKQQLRZ-UHFFFAOYSA-N 0.000 description 1
- 206010016256 Fatigue Diseases 0.000 description 1
- KKCBUQHMOMHUOY-UHFFFAOYSA-N Na2O Inorganic materials [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 description 1
- AQSJGOWTSHOLKH-UHFFFAOYSA-N Phosphite Chemical compound [O-]P([O-])[O-] AQSJGOWTSHOLKH-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000001399 aluminium compounds Chemical class 0.000 description 1
- 229910021502 aluminium hydroxide Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 229910052918 calcium silicate Inorganic materials 0.000 description 1
- 235000012241 calcium silicate Nutrition 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 229910052593 corundum Inorganic materials 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- NTGONJLAOZZDJO-UHFFFAOYSA-M disodium;hydroxide Chemical compound [OH-].[Na+].[Na+] NTGONJLAOZZDJO-UHFFFAOYSA-M 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 230000036571 hydration Effects 0.000 description 1
- 238000006703 hydration reaction Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052976 metal sulfide Inorganic materials 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000002367 phosphate rock Substances 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000005215 recombination Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000005871 repellent Substances 0.000 description 1
- BPQQTUXANYXVAA-UHFFFAOYSA-N silicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- LIVNPJMFVYWSIS-UHFFFAOYSA-N silicon monoxide Inorganic materials [Si-]#[O+] LIVNPJMFVYWSIS-UHFFFAOYSA-N 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- KEAYESYHFKHZAL-UHFFFAOYSA-N sodium Chemical compound [Na] KEAYESYHFKHZAL-UHFFFAOYSA-N 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 229910001845 yogo sapphire Inorganic materials 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
- C04B40/0028—Aspects relating to the mixing step of the mortar preparation
- C04B40/0039—Premixtures of ingredients
- C04B40/0042—Powdery mixtures
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B17/00—Sulfur; Compounds thereof
- C01B17/69—Sulfur trioxide; Sulfuric acid
- C01B17/74—Preparation
- C01B17/76—Preparation by contact processes
- C01B17/78—Preparation by contact processes characterised by the catalyst used
- C01B17/79—Preparation by contact processes characterised by the catalyst used containing vanadium
-
- 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
- C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
- C04B20/02—Treatment
- C04B20/04—Heat treatment
-
- 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
- C04B2103/10—Accelerators; Activators
- C04B2103/12—Set accelerators
Abstract
The present invention provides the techniques of a kind of ardealite and red mud relieving haperacidity coproduction concrete accelerator, include the following steps：Ardealite, red mud, additive and modifying agent are mixed and ground, raw material are made, is sent into roasting in kiln, clinker is made；Clinker obtained is dissolved out, and is separated by solid-liquid separation；By isolated residue through flotation, sulfide is detached to obtain；The sulfide isolated is placed in processing, sulfuric acid is made；By isolated solution through evaporation, solid matter is obtained, fixed substance is crushed to obtain solid powder；Aluminum oxide clinker powder, high efficiency water reducing agent, zinc sulfate, sodium carbonate, hydroxypropyl methyl cellulose and silica flour will be added in obtained solid powder, is uniformly mixed to prepare concrete accelerator.The present invention has relieving haperacidity and prepare concrete accelerator at low cost, waste residue utilization rate height, simple for process, the high feature of concrete accelerator quality.
Description
Technical field
The present invention relates to the techniques of a kind of ardealite and red mud relieving haperacidity coproduction concrete accelerator, belong to chemical metallurgy neck
Domain.
Background technology
Ardealite refer in phosphoric acid production with sulfuric acid treating phosphorite when the solid slag that generates, main component is sulfuric acid
Calcium（CaSO4）, content generally can reach 70-90% or so.In addition, ardealite also contains plurality of impurities：Undecomposed phosphorus ore,
Phosphoric acid, calcirm-fluoride, iron, aluminium compound, acid non-soluble substance, organic matter of non-washes clean etc..Ardealite is discharged every year about in China
20000000 tons, add up nearly hundred million tons of discharge capacity.For utilization rate of the ardealite in terms of building materials less than 5%, a large amount of gypsum stacks occupy soil
Ground seriously pollutes environment.
Red mud is to refine the waste generated in alumina process with bauxite.It is in crimson color muddy because it is rich in iron
And it gains the name.1 ton of aluminium oxide is often produced, 1.0-2.0 tons of red mud is about generated.The year yield of China's red mud is about 1.0 hundred million tons, is tired out
It is about 500,000,000 tons to count volume of cargo in storage.
Accelerator is that it is made to condense a kind of concrete external additive of hardening rapidly in incorporation concrete, and effect is to accelerate
The hydration and hardening of cement forms enough intensity in a short period of time, to ensure the requirement of special construction.In existing coagulation
Contain sodium aluminate in native accelerator, and the sodium aluminate generally uses bauxite or aluminium hydroxide to be prepared into sodium hydroxide processing
It arrives, the preparation process complexity of sodium aluminate, production cost are high, lead to sodium aluminate price, greatly increase the life of water-repellent paint
Produce cost.
It is now currently, seldom for the technology of the comprehensive utilization of ardealite and red mud, it is substantially focused on building materials and paves the way
Traditional field, which results in the waste of a large amount of high value ingredients in ardealite and red mud, added value is very low.And by ardealite and
Red mud comprehensive utilization comes relieving haperacidity, while the technique of coproduction concrete accelerator, has not been reported.
Goal of the invention
The object of the present invention is to provide the techniques of a kind of ardealite and red mud relieving haperacidity coproduction concrete accelerator.The present invention has
There is relieving haperacidity and to prepare concrete accelerator at low cost, waste residue utilization rate is high, simple for process, the high spy of concrete accelerator quality
Point.
Technical scheme of the present invention
A kind of technique of ardealite and red mud relieving haperacidity coproduction concrete accelerator, includes the following steps：
A, ardealite, red mud, additive and modifying agent are mixed and is ground and raw material are made, be sent into roasting in kiln, clinker is made；
B, clinker made from step A is dissolved out, and is separated by solid-liquid separation；
C, by residue isolated step B through flotation, sulfide is detached to obtain；
D, the step C sulfide isolated is placed under the oxygen-enriched environment of 30-50%, is roasted 3-5 hours at 800-1200 DEG C,
The flue gas generated is roasted after vanadic anhydride catalysis reaction, is absorbed using the concentrated sulfuric acid, sulfuric acid is made；
E, solution isolated step B is obtained solid matter, fixed substance is crushed to obtain solid powder through evaporation；
F, aluminum oxide clinker powder, high efficiency water reducing agent, zinc sulfate, sodium carbonate, hydroxypropyl first are added in the solid powder for obtaining step E
Base cellulose and silica flour, are uniformly mixed to prepare concrete accelerator.
In the technique of ardealite and red mud relieving haperacidity coproduction concrete accelerator above-mentioned, in step A, the red mud is to visit
Ear method produces the red mud that aluminium oxide generates；The additive is sodium carbonate or caustic soda；The modifying agent is anthracite, carbon or bastard coal
Stone.
In the technique of ardealite and red mud relieving haperacidity coproduction concrete accelerator above-mentioned, in step A, in the raw material,
Ardealite and Bayer red mud are according to 1:The ratio of 0.7-1.9 weight ratios mixes, and additive adding proportion presses contained Na in raw material2O
And A12O3+Fe2O3The molecular proportion of summation is 1:1 addition, the mixed proportion of modifying agent are the 10-25% of raw material total weight.
In the technique of ardealite and red mud relieving haperacidity coproduction concrete accelerator above-mentioned, in step A, the kiln is that industry is returned
Rotary kiln, Industry Tunnel Kiln or industrial shaft kiln.
It is in temperature 1000- in step A in the technique of ardealite and red mud relieving haperacidity coproduction concrete accelerator above-mentioned
Roasting time 1-2 hours at 1350 DEG C.
In the technique of ardealite and red mud relieving haperacidity coproduction concrete accelerator above-mentioned, in step B, clinker elder generation water mill
After dissolve out；It is 3-6 that liquid when dissolution, which consolidates volume ratio,:1.
In the technique of ardealite and red mud relieving haperacidity coproduction concrete accelerator above-mentioned, the liquid when dissolution consolidates volume ratio
For 4-6:1.
In the technique of ardealite and red mud relieving haperacidity coproduction concrete accelerator above-mentioned, in step E, the evaporating temperature is
80-120℃。
In the technique of ardealite and red mud relieving haperacidity coproduction concrete accelerator above-mentioned, in step F, by weight, institute
It includes 15-20 parts of solid powder, 20-25 parts of aluminum oxide clinker powder, 5-10 parts of high efficiency water reducing agent, zinc sulfate 5- to state concrete accelerator
5-10 parts of 8 parts, 10-15 parts of sodium carbonate, 2-5 parts of hydroxypropyl methyl cellulose and silica flour.
In the technique of ardealite and red mud relieving haperacidity coproduction concrete accelerator above-mentioned, by weight, the concrete
Accelerator includes 18 parts of solid powder, 23 parts of aluminum oxide clinker powder, 8 parts of high efficiency water reducing agent, 6 parts of zinc sulfate, 13 parts of sodium carbonate, hydroxypropyl
7 parts of 4 parts of ylmethyl cellulose and silica flour.
The present invention is by by ardealite and red mud reaction, recombination, making utility.The net reaction of principle is：
CaSO4（Ardealite）+ Na2O·SiO2·Al2O3（Red mud）→ Na2O·Al2O3 + CaO·SiO2↓+[sulphur]
From the reaction equation it is found that with the SiO in the CaO and red mud in ardealite2Generate calcium orthosilicate（ CaO·SiO2↓）Afterwards,
Obtain soluble fabulous sodium aluminate（Na2O·Al2O3）.[sulphur] in reaction equation refers to adding modifying agent technique by raw material, raw
At metal sulfide, main component FeS；After leaching the sodium aluminate in clinker, obtained sediment flotation can be obtained
To FeS.
Advantageous effect
1, the present invention is used as raw material by ardealite and red mud, and is added after additive and modifying agent, in the work of high-temperature roasting
The clinker of main silicate-containing, aluminate and sulfide is obtained under skill, and the main component of the aluminate is sodium aluminate, by aluminic acid
Sodium it is water-soluble go out after may be recovered, and after solid residue flotation, obtain sulfide, sulfuric acid prepared using sulfide, pass through
The sodium aluminate of recycling and other raw materials prepare concrete accelerator, due to ardealite and red mud being mainly original in entire technique
Material adds other a small amount of substances and therefore greatly reduces the cost input of relieving haperacidity and concrete accelerator.Also increase
The utilization rate for having added ardealite and waste red mud residues has important contribution to alleviate ardealite and red mud to the pollution of environment.
2, the present invention obtains after the solid residue flotation in technique sulfide, sulfuric acid, relieving haperacidity is prepared using sulfide
Cost it is low, acid-making process is simple.
3, the present invention by raw material by roasting after, obtained ingredient is clearly demarcated, aluminium mainly with aluminic acid na form exist, profit
The characteristic of water is highly soluble in sodium aluminate, can be simple and quick be isolated and be used to prepare concrete accelerator, concrete speed
Solidifying agent quality is high, and concrete accelerator is at low cost.
Further to prove that the effect of the present invention, inventor have done following experiment.
1, concrete accelerator Quality Detection
Concrete accelerator in following five groups of embodiments is added in cement with the addition content of 4-5% after being configured to concrete and is observed
And be detected, examining report is as follows；
As can be seen from the table above, concrete accelerator of the invention analyzes to have from data that setting time is short, intensity
High advantage, concrete accelerator quality of the invention is high, the good feature of effect.
Specific implementation mode
With reference to embodiment, the present invention is further illustrated, but is not intended as the foundation limited the present invention.
The embodiment of the present invention
Embodiment 1：A kind of technique of ardealite and red mud relieving haperacidity coproduction concrete accelerator, steps are as follows：
A, ardealite, Bayer red mud, sodium carbonate and anthracite are mixed and is ground and raw material are made, be sent into industrial rotary kiln in temperature
Roasting time 2 hours at 1000 DEG C of degree, is made clinker；Wherein, ardealite and Bayer red mud are according to 1:The ratio of 0.7 weight ratio is mixed
It closes, sodium carbonate adding proportion presses contained Na in raw material2O and A12O3+Fe2O3The molecular proportion of summation is 1:1 addition, it is anthracitic mixed
Composition and division in a proportion example is the 10% of raw material total weight；
B, clinker made from step A is consolidated into volume ratio as 4 with liquid:1 carries out water mill dissolution, and is separated by solid-liquid separation；
C, by residue isolated step B through flotation, sulfide is detached to obtain；
D, the step C sulfide isolated is placed under 30% oxygen-enriched environment, is roasted 5 hours at 800 DEG C, roasts generation
Flue gas is absorbed using the concentrated sulfuric acid after vanadic anhydride catalysis reaction, sulfuric acid is made；
E, by solution isolated step B pass through temperature be 80 DEG C at evaporate, obtain solid matter, fixed substance crushed
To solid powder；
F, aluminum oxide clinker powder, high efficiency water reducing agent, zinc sulfate, sodium carbonate, hydroxypropyl first are added in the solid powder for obtaining step E
Base cellulose, silica flour, are uniformly mixed to prepare concrete accelerator, wherein by weight, it is described to include 18 parts of solid powder, aluminium
23 parts of oxygen chamotte powder, 8 parts of high efficiency water reducing agent, 6 parts of zinc sulfate, 13 parts of sodium carbonate, 4 parts of hydroxypropyl methyl cellulose, 7 parts of silica flour.
Embodiment 2：A kind of technique of ardealite and red mud relieving haperacidity coproduction concrete accelerator, steps are as follows：
A, ardealite, Bayer red mud, caustic soda and carbon are mixed and is ground and raw material are made, be sent into industrial rotary kiln in temperature 1200
Clinker is made in roasting time 1.5 hours at DEG C；Wherein, ardealite and Bayer red mud are according to 1:The ratio of 1.2 weight ratios mixes,
Caustic soda adding proportion presses contained Na in raw material2O and A12O3+Fe2O3The molecular proportion of summation is 1:1 addition, the mixed proportion of carbon are made a living
Expect the 15% of total weight；
B, clinker made from step A is consolidated into volume ratio as 5 with liquid:1 carries out water mill dissolution, and is separated by solid-liquid separation；
C, by residue isolated step B through flotation, sulfide is detached to obtain；
D, the step C sulfide isolated is placed under 35% oxygen-enriched environment, is roasted 4 hours at 900 DEG C, roasts generation
Flue gas is absorbed using the concentrated sulfuric acid after vanadic anhydride catalysis reaction, sulfuric acid is made；
E, by solution isolated step B pass through temperature be 85 DEG C at evaporate, obtain solid matter, fixed substance crushed
To solid powder；
F, aluminum oxide clinker powder, high efficiency water reducing agent, zinc sulfate, sodium carbonate, hydroxypropyl first are added in the solid powder for obtaining step E
Base cellulose, silica flour, are uniformly mixed to prepare concrete accelerator, wherein by weight, it is described to include 20 parts of solid powder, aluminium
23 parts of oxygen chamotte powder, 10 parts of high efficiency water reducing agent, 5 parts of zinc sulfate, 13 parts of sodium carbonate, 4 parts of hydroxypropyl methyl cellulose, silica flour 10
Part.
Embodiment 3：A kind of technique of ardealite and red mud relieving haperacidity coproduction concrete accelerator, steps are as follows：
A, ardealite, Bayer red mud, sodium carbonate and gangue are mixed and is ground and raw material are made, be sent into industrial rotary kiln in temperature
Roasting time 1.5 hours at 1300 DEG C of degree, is made clinker；Wherein, ardealite and Bayer red mud are according to 1:The ratio of 1.4 weight ratios
Mixing, sodium carbonate adding proportion press contained Na in raw material2O and A12O3+Fe2O3The molecular proportion of summation is 1:1 addition, gangue
Mixed proportion is the 20% of raw material total weight；
B, clinker made from step A is consolidated into volume ratio as 6 with liquid:1 carries out water mill dissolution, and is separated by solid-liquid separation；
C, by residue isolated step B through flotation, sulfide is detached to obtain；
D, the step C sulfide isolated is placed under 45% oxygen-enriched environment, is roasted 3 hours at 1000 DEG C, roasts generation
Flue gas is absorbed using the concentrated sulfuric acid after vanadic anhydride catalysis reaction, sulfuric acid is made；
E, by solution isolated step B pass through temperature be 100 DEG C at evaporate, obtain solid matter, fixed substance crushed
Obtain solid powder；
F, aluminum oxide clinker powder, high efficiency water reducing agent, zinc sulfate, sodium carbonate, hydroxypropyl first are added in the solid powder for obtaining step E
Base cellulose, silica flour, are uniformly mixed to prepare concrete accelerator, wherein by weight, it is described to include 20 parts of solid powder, aluminium
25 parts of oxygen chamotte powder, 5 parts of high efficiency water reducing agent, 8 parts of zinc sulfate, 10 parts of sodium carbonate, 5 parts of hydroxypropyl methyl cellulose, 5 parts of silica flour.
Embodiment 4：A kind of technique of ardealite and red mud relieving haperacidity coproduction concrete accelerator, steps are as follows：
A, ardealite, Bayer red mud, caustic soda and gangue are mixed and is ground and raw material are made, be sent into industrial rotary kiln in temperature
Clinker is made in roasting time 1 hour at 1350 DEG C；Wherein, ardealite and Bayer red mud are according to 1:The ratio of 1.7 weight ratios is mixed
It closes, caustic soda adding proportion presses contained Na in raw material2O and A12O3+Fe2O3The molecular proportion of summation is 1:1 addition, the mixing of gangue
Ratio is the 25% of raw material total weight；
B, clinker made from step A is consolidated into volume ratio as 5 with liquid:1 carries out water mill dissolution, and is separated by solid-liquid separation；
C, by residue isolated step B through flotation, sulfide is detached to obtain；
D, the step C sulfide isolated is placed under 45% oxygen-enriched environment, is roasted 3 hours at 1200 DEG C, roasts generation
Flue gas is absorbed using the concentrated sulfuric acid after vanadic anhydride catalysis reaction, sulfuric acid is made；
E, by solution isolated step B pass through temperature be 110 DEG C at evaporate, obtain solid matter, fixed substance crushed
Obtain solid powder；
F, aluminum oxide clinker powder, high efficiency water reducing agent, zinc sulfate, sodium carbonate, hydroxypropyl first are added in the solid powder for obtaining step E
Base cellulose, silica flour, are uniformly mixed to prepare concrete accelerator, wherein by weight, it is described to include 17 parts of solid powder, aluminium
22 parts of oxygen chamotte powder, 5 parts of high efficiency water reducing agent, 8 parts of zinc sulfate, 12 parts of sodium carbonate, 2 parts of hydroxypropyl methyl cellulose, 9 parts of silica flour.
Embodiment 5：A kind of technique of ardealite and red mud relieving haperacidity coproduction concrete accelerator, steps are as follows：
A, ardealite, Bayer red mud, caustic soda and anthracite are mixed and is ground and raw material are made, be sent into industrial rotary kiln in temperature
Clinker is made in roasting time 2 hours at 1200 DEG C；Wherein, ardealite and Bayer red mud are according to 1:The ratio of 1.9 weight ratios is mixed
It closes, caustic soda adding proportion presses contained Na in raw material2O and A12O3+Fe2O3The molecular proportion of summation is 1:1 addition, anthracitic mixing
Ratio is the 20% of raw material total weight；
B, clinker made from step A is consolidated into volume ratio as 4 with liquid:1 carries out water mill dissolution, and is separated by solid-liquid separation；
C, by residue isolated step B through flotation, sulfide is detached to obtain；
D, the step C sulfide isolated is placed under 50% oxygen-enriched environment, is roasted 4 hours at 1100 DEG C, roasts generation
Flue gas is absorbed using the concentrated sulfuric acid after vanadic anhydride catalysis reaction, sulfuric acid is made；
E, by solution isolated step B pass through temperature be 120 DEG C at evaporate, obtain solid matter, fixed substance crushed
Obtain solid powder；
F, aluminum oxide clinker powder, high efficiency water reducing agent, zinc sulfate, sodium carbonate, hydroxypropyl first are added in the solid powder for obtaining step E
Base cellulose, silica flour, are uniformly mixed to prepare concrete accelerator, wherein by weight, it is described to include 20 parts of solid powder, aluminium
25 parts of oxygen chamotte powder, 10 parts of high efficiency water reducing agent, 8 parts of zinc sulfate, 15 parts of sodium carbonate, 5 parts of hydroxypropyl methyl cellulose, silica flour 10
Part.
Claims (10)
1. the technique of a kind of ardealite and red mud relieving haperacidity coproduction concrete accelerator, which is characterized in that include the following steps：
A, ardealite, red mud, additive and modifying agent are mixed and is ground and raw material are made, be sent into roasting in kiln, clinker is made；
B, clinker made from step A is dissolved out, and is separated by solid-liquid separation；
C, by residue isolated step B through flotation, sulfide is detached to obtain；
D, the step C sulfide isolated is placed under the oxygen-enriched environment of 30-50%, is roasted 3-5 hours at 800-1200 DEG C,
The flue gas generated is roasted after vanadic anhydride catalysis reaction, is absorbed using the concentrated sulfuric acid, sulfuric acid is made；
E, solution isolated step B is obtained solid matter, fixed substance is crushed to obtain solid powder through evaporation；
F, aluminum oxide clinker powder, high efficiency water reducing agent, zinc sulfate, sodium carbonate, hydroxypropyl first are added in the solid powder for obtaining step E
Base cellulose and silica flour, are uniformly mixed to prepare concrete accelerator.
2. the technique of ardealite according to claim 1 and red mud relieving haperacidity coproduction concrete accelerator, it is characterised in that：Step
In rapid A, the red mud is the red mud that alumina producing Bayer process generates；The additive is sodium carbonate or caustic soda；It is described to change
Property agent be anthracite, carbon or gangue.
3. the technique of ardealite according to claim 1 and red mud relieving haperacidity coproduction concrete accelerator, it is characterised in that：Step
In rapid A, in the raw material, ardealite and Bayer red mud are according to 1:The ratio of 0.7-1.9 weight ratios mixes, and additive adds ratio
Example is by contained Na in raw material2O and A12O3+Fe2O3The molecular proportion of summation is 1:The mixed proportion of 1 addition, modifying agent is raw material gross weight
The 10-25% of amount.
4. the technique of ardealite according to claim 1 and red mud relieving haperacidity coproduction concrete accelerator, it is characterised in that：Step
In rapid A, the kiln is industrial rotary kiln, Industry Tunnel Kiln or industrial shaft kiln.
5. the technique of ardealite according to claim 1 and red mud relieving haperacidity coproduction concrete accelerator, it is characterised in that：Step
It is roasting time 1-2 hours at 1000-1350 DEG C of temperature in rapid A.
6. the technique of ardealite according to claim 1 and red mud relieving haperacidity coproduction concrete accelerator, it is characterised in that：Step
In rapid B, dissolved out after clinker elder generation water mill；It is 3-6 that liquid when dissolution, which consolidates volume ratio,:1.
7. the technique of ardealite according to claim 6 and red mud relieving haperacidity coproduction concrete accelerator, it is characterised in that：Institute
It is 4-6 to state liquid when dissolution to consolidate volume ratio:1.
8. the technique of ardealite according to claim 1 and red mud relieving haperacidity coproduction concrete accelerator, it is characterised in that：Step
In rapid E, the evaporating temperature is 80-120 DEG C.
9. the technique of ardealite according to claim 1 and red mud relieving haperacidity coproduction concrete accelerator, it is characterised in that：Step
In rapid F, by weight, the concrete accelerator includes 15-20 parts of solid powder, 20-25 parts of aluminum oxide clinker powder, efficiently subtracts
5-10 parts of 5-10 parts of aqua, 5-8 parts of zinc sulfate, 10-15 parts of sodium carbonate, 2-5 parts of hydroxypropyl methyl cellulose and silica flour.
10. the technique of ardealite according to claim 9 and red mud relieving haperacidity coproduction concrete accelerator, it is characterised in that：
By weight, the concrete accelerator includes 18 parts of solid powder, 23 parts of aluminum oxide clinker powder, 8 parts of high efficiency water reducing agent, sulfuric acid
7 parts of 6 parts of zinc, 13 parts of sodium carbonate, 4 parts of hydroxypropyl methyl cellulose and silica flour.
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