CN107056100A - A kind of preparation method of clinker - Google Patents
A kind of preparation method of clinker Download PDFInfo
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- CN107056100A CN107056100A CN201710333040.1A CN201710333040A CN107056100A CN 107056100 A CN107056100 A CN 107056100A CN 201710333040 A CN201710333040 A CN 201710333040A CN 107056100 A CN107056100 A CN 107056100A
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- clinker
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- carbide slag
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- 238000002360 preparation method Methods 0.000 title claims abstract description 17
- 239000002893 slag Substances 0.000 claims abstract description 50
- 150000001875 compounds Chemical class 0.000 claims abstract description 27
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 20
- 239000010881 fly ash Substances 0.000 claims abstract description 16
- 238000004519 manufacturing process Methods 0.000 claims abstract description 14
- 238000000227 grinding Methods 0.000 claims abstract description 11
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 20
- 238000001354 calcination Methods 0.000 claims description 14
- 229910052681 coesite Inorganic materials 0.000 claims description 10
- 229910052906 cristobalite Inorganic materials 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 10
- 239000000377 silicon dioxide Substances 0.000 claims description 10
- 229910052682 stishovite Inorganic materials 0.000 claims description 10
- 229910052905 tridymite Inorganic materials 0.000 claims description 10
- 239000004568 cement Substances 0.000 claims description 8
- 239000011398 Portland cement Substances 0.000 claims description 7
- 239000002994 raw material Substances 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 6
- 229910052593 corundum Inorganic materials 0.000 claims description 6
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 6
- 229910001845 yogo sapphire Inorganic materials 0.000 claims description 6
- 239000010440 gypsum Substances 0.000 claims description 4
- 229910052602 gypsum Inorganic materials 0.000 claims description 4
- 239000011505 plaster Substances 0.000 claims description 4
- 230000018044 dehydration Effects 0.000 claims 1
- 238000006297 dehydration reaction Methods 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 12
- 235000019738 Limestone Nutrition 0.000 abstract description 11
- 239000006028 limestone Substances 0.000 abstract description 11
- 238000005265 energy consumption Methods 0.000 abstract description 4
- 239000005431 greenhouse gas Substances 0.000 abstract description 4
- 239000000203 mixture Substances 0.000 description 7
- 239000000126 substance Substances 0.000 description 7
- 239000005997 Calcium carbide Substances 0.000 description 5
- 238000009841 combustion method Methods 0.000 description 5
- 238000009837 dry grinding Methods 0.000 description 5
- CLZWAWBPWVRRGI-UHFFFAOYSA-N tert-butyl 2-[2-[2-[2-[bis[2-[(2-methylpropan-2-yl)oxy]-2-oxoethyl]amino]-5-bromophenoxy]ethoxy]-4-methyl-n-[2-[(2-methylpropan-2-yl)oxy]-2-oxoethyl]anilino]acetate Chemical compound CC1=CC=C(N(CC(=O)OC(C)(C)C)CC(=O)OC(C)(C)C)C(OCCOC=2C(=CC=C(Br)C=2)N(CC(=O)OC(C)(C)C)CC(=O)OC(C)(C)C)=C1 CLZWAWBPWVRRGI-UHFFFAOYSA-N 0.000 description 5
- 229910000519 Ferrosilicon Inorganic materials 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 4
- 239000011575 calcium Substances 0.000 description 4
- 238000000354 decomposition reaction Methods 0.000 description 3
- 238000001035 drying Methods 0.000 description 3
- 239000002689 soil Substances 0.000 description 3
- 239000002912 waste gas Substances 0.000 description 3
- 241000370738 Chlorion Species 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- VTYYLEPIZMXCLO-UHFFFAOYSA-L calcium carbonate Substances [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 239000003818 cinder Substances 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000003009 desulfurizing effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000003516 soil conditioner Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000003746 solid phase reaction Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000005979 thermal decomposition reaction Methods 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
- C04B7/00—Hydraulic cements
- C04B7/24—Cements from oil shales, residues or waste other than slag
- C04B7/26—Cements from oil shales, residues or waste other than slag from raw materials containing flue dust, i.e. fly ash
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B7/00—Hydraulic cements
- C04B7/24—Cements from oil shales, residues or waste other than slag
-
- 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
- C04B7/00—Hydraulic cements
- C04B7/36—Manufacture of hydraulic cements in general
- C04B7/38—Preparing or treating the raw materials individually or as batches, e.g. mixing with fuel
-
- 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
- C04B7/00—Hydraulic cements
- C04B7/36—Manufacture of hydraulic cements in general
- C04B7/43—Heat treatment, e.g. precalcining, burning, melting; Cooling
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/10—Production of cement, e.g. improving or optimising the production methods; Cement grinding
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/10—Production of cement, e.g. improving or optimising the production methods; Cement grinding
- Y02P40/121—Energy efficiency measures, e.g. improving or optimising the production methods
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Compositions Of Oxide Ceramics (AREA)
Abstract
The invention discloses a kind of preparation method of clinker, it is comprised the steps of：Carbide slag is dehydrated outside rotary kiln；Carbide slag and sandstone, flyash, iron powder are mixed to form the first compound；Compound is extruded grinding and mixes homogenizing and obtains the second compound；Second compound is calcined, clinker is obtained.The clinker prepared by the method for the present invention has the exploitation for saving limestone resource, reduces the discharge of greenhouse gases, while saving clinker production process energy consumption, puies forward large-duty plurality of advantages.
Description
Technical field
The present invention relates to a kind of preparation method of clinker.
Background technology
Carbide slag is the residue after calcium carbide hydrolysis, and main component is Ca (OH)2.2015, the whole nation about produced 25,000,000 tons
Calcium carbide, about produces 1.2~1.5 tons of carbide slag calculating, can produce about 3000~37,500,000 tons of carbide slag after being hydrolyzed by calcium carbide per ton.
In recent years, China's accumulation calcium carbide quantity of slag crosses hundred million tons, is stacked and not only occupies moisture in a large amount of soils, carbide slag slurry and ooze
Penetrate into underground water, the problems such as causing soil alkalization and water resource pollution.Carbide slag through long-time stack air-dry after to the wind
Airborne dust is easily played, great threat is brought to surrounding environment.
Carbide slag is both a kind of industrial solid castoff, is also a kind of secondary resource, if it is possible to be used effectively, then right
The development of society, economy and environment is of great advantage.At present, comprehensive utilization of the China to carbide slag has carried out many research,
The desulfurizing agent of carbide slag as coal-burning power plant's waste gas for example can be produced into desulfurated plaster, with carbide slag produce nano-calcium carbonate or
Person is used as soil conditioner to improve acid soil etc..
Containing abundant CaO in carbide slag, the calcareous corrigent in being produced as clinker, therefore replaced with carbide slag
Clinker is prepared for lime stone, the exhaustive exploitation of natural limestone resource has both been reduced, has been greatly reduced greenhouse gases
Discharge.In addition, decomposition temperature of limestone is 850 degrees Celsius, and Ca (OH) in carbide slag2Decomposition temperature is 580 degrees Celsius, because
This, substitutes lime stone using carbide slag and prepares clinker, can reduce energy consumption, improve production efficiency.
The content of the invention
Clinker is prepared based on conventional limestone and the problem of clinker related process is present is prepared using carbide slag,
The present invention proposes a kind of preparation method of clinker, and it is ripe that this method can substitute carbide slag 100% lime stone production cement
Material, has saved the exploitation of limestone resource, has reduced the discharge of greenhouse gases, while clinker production process can also be saved
Energy consumption, improves productivity ratio.
The method that the present invention is used is as described below：
A kind of preparation method of clinker, is comprised the steps of：
Step one, carbide slag is dehydrated outside rotary kiln；
Step 2, the first compound is mixed to form by carbide slag and sandstone, flyash, iron powder；
Step 3, extrudes grinding by the first compound and mixes homogenizing and obtain the second compound；
Step 4, the second compound is calcined, clinker is obtained.
According to one embodiment of present invention, the carbide slag water content after being dehydrated through step one is less than 1%.
According to one embodiment of present invention, various raw material proportionings are respectively in step 2：The weight of carbide slag 73.8~75.2
Measure part, the parts by weight of sandstone 12.0~13.8, the parts by weight of flyash 6.4~7.2 and the parts by weight of iron powder 5.4~6.0.
It is preferred that, according to one embodiment of present invention, various raw material proportionings are respectively in step 2：Carbide slag 74.0~
75.0 parts by weight, the parts by weight of sandstone 12.0~13.5, the parts by weight of flyash 6.5~7.0 and the parts by weight of iron powder 5.7~5.9.
It is further preferred that according to one embodiment of present invention, various raw material proportionings are respectively in step 2：Carbide slag
74.10~74.84 parts by weight, the parts by weight of sandstone 12.38~13.31, the parts by weight of flyash 6.63~6.94 and iron powder 5.79
~5.85 parts by weight.
According to one embodiment of present invention, above-mentioned each raw material needs to meet following components requirement：Carbide slag includes quality
Percentage is 65%~70% CaO；Flyash includes each component of following mass percent：45%~50% SiO2、
34%~39% Al2O3；Sandstone includes the SiO of mass percent 86%~92%2；Iron powder includes following mass percent
Each component：44%~48% SiO2, 40%~46% Fe2O3。
It is preferred that, according to one embodiment of present invention, above-mentioned each raw material needs to meet following components requirement：Calcium carbide cinder ladle
CaO containing mass percent 66.73%~69.23%；Flyash includes each component of following mass percent：46.92%~
48.13% SiO2, 35.28%~37.56% Al2O3；Sandstone includes mass percent 87.48%~89.47%
SiO2；Iron powder includes each component of following mass percent：45.55%~47.17% SiO2, 42.01%~44.92%
Fe2O3。
According to one embodiment of present invention, dehydrating for carbide slag can make full use of rotary kiln and/or dore furnace
The waste gas residual heat of discharge is carried out.
According to one embodiment of present invention, the calcining of step 4 is " dry grinding dry combustion method " technique, and it is comprised the steps of：
Step one, by the second preheating of mixed material so that part Ca therein (OH)2Decompose, the warm can be fully sharp
The waste gas residual heat discharged with rotary kiln and/or dore furnace is heated；
Step 2, calcines second compound after preheating in rotary kiln, Ca (OH) in calcination process2Further
Decompose and occur solid phase reaction, the various mineral needed for generation clinker obtain clinker.
According to one embodiment of present invention, burning clinker of cement temperature is 1400 DEG C~1450 DEG C, and calcination time is 20
~28 minutes.It is preferred that, burning clinker of cement temperature is 1420 DEG C~1440 DEG C, and calcination time is 22~27 minutes.
According to one embodiment of present invention, grinding obtains portland cement production after clinker is mixed with retarder
Product.
According to one embodiment of present invention, the adding proportion of retarder is 3~5%.
According to one embodiment of present invention, retarder is the natural gypsum and/or desulfurated plaster.
According to one embodiment of present invention, the mass fraction of chlorion is not higher than 0.06% in carbide slag.It is preferred that, electricity
The mass fraction of chlorion is 0.01-0.03% in rock ballast.
According to one embodiment of present invention, ferrosilicon mass fraction is not higher than 0.05% in carbide slag.It is preferred that, carbide slag
Middle ferrosilicon mass fraction is 0.01%-0.05% (FexSiy, ferrosilicon is the compound of the different chemical valences of Si, Fe formation).
According to one embodiment of present invention, raw material particle size is less than 80 μm of ratio after material extruding grinding after mix
For more than 90%.
According to one embodiment of present invention, the pre- thermal decomposition process of " dry grinding dry combustion method " technique is thermally decomposed in advance using three-level whirlwind
System.
By using above-mentioned technical proposal, following many beneficial effects are achieved：
(1) lime stone production clinker is substituted using carbide slag 100%, has saved the exploitation of limestone resource, reduced
The discharges of greenhouse gases.
(2) because carbide slag decomposition temperature is low compared with lime stone, clinker production process energy consumption is saved, production is improved
Rate.
(3) due in carbide slag chloride ion content it is low, rotary kiln exhaust gas outlet knot chlorine phenomenon it is lighter, rotary kiln can be realized
Continuous production.
(4) due in carbide slag ferrosilicon content it is low, saved raw grinding and cement grog grinding process time, equipment mill
Loss rate is relatively low.
Brief description of the drawings
The above-mentioned and/or additional aspect and advantage of the present invention will more in the description carried out to embodiment is combined with accompanying drawing
Plus substantially and be readily appreciated that, wherein：
Fig. 1 shows the schematic flow sheet of the preparation method of clinker according to an embodiment of the invention.
Embodiment
It should be appreciated that shown embodiments of the invention are merely illustrative in the exemplary embodiment.Although in this hair
Only a small number of embodiments are described in detail in bright, but those skilled in the art are readily appreciated that and depart from the present invention in not essence
In the case of the teaching of theme, a variety of modifications are feasible.Correspondingly, all such modifications should all be included in the present invention's
In the range of.Without departing from the spirit of the invention, design, operating condition and ginseng that can be to following exemplary embodiment
Number etc. makes others and replaces, changes, changes and delete.
Embodiment one
In the present embodiment, each material chemical component is as shown in table 1.
With reference to Fig. 1, in the step s 100, carbide slag is dehydrated outside rotary kiln, then in step s 200 will be dry
Carbide slag of the water content less than 1% after dry is according to the parts by weight of carbide slag 73.81, the parts by weight of sandstone 13.78, the weight of flyash 6.43
The component composition for measuring part and the parts by weight of iron powder 5.98 carries out mix the first compound of formation.Then in step S300
Above-mentioned first compound is extruded into grinding, then is mixed homogenizing and forms the second compound.Finally in step S400, by second
Compound is calcined according to new dry process " dry grinding dry combustion method " technique, prepared by the natural gypsum that the product after calcining is added into 3%
Obtain Portland cement production.Wherein, burning clinker of cement temperature is 1400 DEG C, and calcination time is 28 minutes.
Each material chemical component of table 1, wt%
| Project | LOI | CaO | SiO2 | Al2O3 | Fe2O3 | MgO | Cl- | (Fe,Si) |
| Carbide slag | 27.5 | 69.23 | 0.51 | 1.22 | 0.21 | 0.93 | 0.03 | 0.05 |
| Flyash | 5.51 | 3.13 | 47.85 | 36.71 | 3.78 | 0.72 | 0.001 | 0.001 |
| Sandstone | 0.29 | 0.79 | 87.48 | 3.45 | 0.84 | 0.36 | 0 | 0 |
| Iron powder | 0.34 | 1.35 | 47.17 | 5.18 | 42.01 | 0.7 | 0 | 0 |
Embodiment two
In the present embodiment, each material chemical component is as shown in table 2.
With reference to Fig. 1, in the step s 100, carbide slag is dehydrated outside rotary kiln, then in step s 200 will be dry
Carbide slag of the water content less than 1% after dry is according to the parts by weight of carbide slag 74.68, the parts by weight of sandstone 13.28, the weight of flyash 6.82
The component composition for measuring part and the parts by weight of iron powder 5.42 carries out mix the first compound of formation.Then in step S300
Above-mentioned first compound is extruded into grinding, then is mixed homogenizing and forms the second compound.Finally in step S400, by second
Compound is calcined according to new dry process " dry grinding dry combustion method " technique, prepared by the desulfurated plaster that the product after calcining is added into 4%
Obtain Portland cement production.Wherein, burning clinker of cement temperature is 1450 DEG C, and calcination time is 20 minutes.
Each material chemical component of table 2, wt%
| Project | LOI | CaO | SiO2 | Al2O3 | Fe2O3 | MgO | Cl- | (Fe,Si) |
| Carbide slag | 28.4 | 68.05 | 0.58 | 1.35 | 0.32 | 0.91 | 0.01 | 0.03 |
| Flyash | 5.62 | 3.33 | 46.92 | 37.56 | 3.29 | 0.77 | 0.001 | 0.001 |
| Sandstone | 0.35 | 0.61 | 88.52 | 3.25 | 0.96 | 0.23 | 0 | 0 |
| Iron powder | 0.25 | 1.47 | 45.55 | 5.64 | 44.92 | 0.82 | 0 | 0 |
Embodiment three
In the present embodiment, each material chemical component is as shown in table 2.
With reference to Fig. 1, in the step s 100, carbide slag is dehydrated outside rotary kiln, then in step s 200 will be dry
Carbide slag of the water content less than 1% after dry is according to the parts by weight of carbide slag 75.01, the parts by weight of sandstone 12.01, the weight of flyash 7.19
The component composition for measuring part and the parts by weight of iron powder 5.79 carries out mix the first compound of formation.Then in step S300
Above-mentioned first compound is extruded into grinding, then is mixed homogenizing and forms the second compound.Finally in step S400, by second
Compound is calcined according to new dry process " dry grinding dry combustion method " technique, prepared by the natural gypsum that the product after calcining is added into 5%
Obtain Portland cement production.Wherein, burning clinker of cement temperature is 1430 DEG C, and calcination time is 24 minutes.
Each material chemical component of table 3, wt%
| Project | LOI | CaO | SiO2 | Al2O3 | Fe2O3 | MgO | Cl- | (Fe,Si) |
| Carbide slag | 27.7 | 66.73 | 0.65 | 1.39 | 0.43 | 0.88 | 0.02 | 0.04 |
| Flyash | 5.15 | 3.54 | 48.13 | 35.28 | 3.55 | 0.62 | 0.001 | 0.001 |
| Sandstone | 0.12 | 0.43 | 89.47 | 3.55 | 0.75 | 0.29 | 0 | 0 |
| Iron powder | 0.33 | 1.67 | 45.98 | 5.54 | 43.17 | 0.54 | 0 | 0 |
The related physicochemical property testing result of Portland cement production that embodiment 1-3 is prepared is as shown in table 4 below.
Table 4 adopts the Portland cement production physicochemical property being obtained by the present invention
The foregoing is only presently preferred embodiments of the present invention, not for limit the present invention practical range；If do not taken off
From the spirit and scope of the present invention, the present invention is modified or equivalent substitution, all should covered in the claims in the present invention
Among protection domain.
Claims (10)
1. a kind of preparation method of clinker, it is characterised in that comprise the steps of：
Step one, the carbide slag is dehydrated；
Step 2, the first compound is mixed to form by the carbide slag and sandstone, flyash, iron powder；
Step 3, extrudes grinding by first compound and mixes homogenizing and obtain the second compound；
Step 4, second compound is calcined, clinker is obtained.
2. the preparation method of clinker according to claim 1, it is characterised in that the dehydration Jing Guo the step one is done
The carbide slag water content after dry is less than 1%.
3. the preparation method of clinker according to claim 1, it is characterised in that various raw materials are matched somebody with somebody in the step 2
Than being respectively：The parts by weight of carbide slag 73.8~75.2, the parts by weight of sandstone 11.8~13.8, the parts by weight of flyash 6.4~7.2 and
The parts by weight of iron powder 5.6~6.0.
4. the preparation method of clinker according to claim 3, it is characterised in that the carbide slag includes quality percentage
Than the CaO for 65%~70%；The flyash includes each component of following mass percent：45%~50% SiO2、
34%~39% Al2O3；The sandstone includes the SiO of mass percent 86%~92%2；The iron powder includes following quality
The each component of percentage：44%~48% SiO2, 40%~46% Fe2O3。
5. the preparation method of clinker according to claim 1, it is characterised in that the calcining bag of the step 4
Containing following steps：
Step one, by second preheating of mixed material；
Step 2, second compound after preheating is calcined.
6. the preparation method of clinker according to claim 5, it is characterised in that the calcining is entered in rotary kiln
OK.
7. the preparation method of the clinker according to claim 5, it is characterised in that the calcining heat is 1400 DEG C
~1450 DEG C, calcination time is 20~28 minutes.
8. the preparation method of clinker according to claim 1, it is characterised in that the cement in the step 4
Grinding obtains Portland cement production after clinker is mixed with retarder.
9. the preparation method of clinker according to claim 5, it is characterised in that the adding proportion of the retarder is
3~5%.
10. the preparation method of clinker according to claim 9, it is characterised in that the retarder is the natural gypsum
And/or desulfurated plaster.
Priority Applications (1)
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|---|---|---|---|
| CN201710333040.1A CN107056100A (en) | 2017-05-12 | 2017-05-12 | A kind of preparation method of clinker |
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| CN201710333040.1A CN107056100A (en) | 2017-05-12 | 2017-05-12 | A kind of preparation method of clinker |
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| Publication Number | Publication Date |
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| CN107056100A true CN107056100A (en) | 2017-08-18 |
Family
ID=59596919
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108640545A (en) * | 2018-08-08 | 2018-10-12 | 赵先波 | A kind of corrosion-resistant cement and preparation method thereof |
| CN108726903A (en) * | 2018-08-08 | 2018-11-02 | 赵先波 | A kind of wear-resisting cement and preparation method thereof |
| CN109053007A (en) * | 2018-08-08 | 2018-12-21 | 赵先波 | A kind of high rigidity cement and preparation method thereof |
| CN110482885A (en) * | 2019-09-20 | 2019-11-22 | 四川永祥新材料有限公司 | A kind of portland cement composition of raw materials and portland cement preparation method |
| CN112159131A (en) * | 2020-09-10 | 2021-01-01 | 内蒙古亿利冀东水泥有限责任公司 | Road silicate cement clinker taking carbide slag as raw material and preparation method thereof |
| CN113526882A (en) * | 2020-04-13 | 2021-10-22 | 内蒙古亿利冀东水泥有限责任公司 | Portland cement clinker and preparation method thereof |
| CN114477803A (en) * | 2022-01-26 | 2022-05-13 | 宁夏金昱元资源循环有限公司 | Production method of carbide slag cement |
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2017
- 2017-05-12 CN CN201710333040.1A patent/CN107056100A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108640545A (en) * | 2018-08-08 | 2018-10-12 | 赵先波 | A kind of corrosion-resistant cement and preparation method thereof |
| CN108726903A (en) * | 2018-08-08 | 2018-11-02 | 赵先波 | A kind of wear-resisting cement and preparation method thereof |
| CN109053007A (en) * | 2018-08-08 | 2018-12-21 | 赵先波 | A kind of high rigidity cement and preparation method thereof |
| CN110482885A (en) * | 2019-09-20 | 2019-11-22 | 四川永祥新材料有限公司 | A kind of portland cement composition of raw materials and portland cement preparation method |
| CN113526882A (en) * | 2020-04-13 | 2021-10-22 | 内蒙古亿利冀东水泥有限责任公司 | Portland cement clinker and preparation method thereof |
| CN113526882B (en) * | 2020-04-13 | 2023-10-03 | 内蒙古亿利冀东水泥有限责任公司 | Portland cement clinker and preparation method thereof |
| CN112159131A (en) * | 2020-09-10 | 2021-01-01 | 内蒙古亿利冀东水泥有限责任公司 | Road silicate cement clinker taking carbide slag as raw material and preparation method thereof |
| CN114477803A (en) * | 2022-01-26 | 2022-05-13 | 宁夏金昱元资源循环有限公司 | Production method of carbide slag cement |
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