CN106746803A - Coal ash instead clay makees correction material - Google Patents
Coal ash instead clay makees correction material Download PDFInfo
- Publication number
- CN106746803A CN106746803A CN201611251833.0A CN201611251833A CN106746803A CN 106746803 A CN106746803 A CN 106746803A CN 201611251833 A CN201611251833 A CN 201611251833A CN 106746803 A CN106746803 A CN 106746803A
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- CN
- China
- Prior art keywords
- clay
- coal ash
- flyash
- raw material
- ash instead
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- 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
- C04B7/42—Active ingredients added before, or during, the burning process
- C04B7/421—Inorganic materials
- C04B7/427—Silicates
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Processing Of Solid Wastes (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Silicates, Zeolites, And Molecular Sieves (AREA)
Abstract
Coal ash instead cement makees Binder Materials for mass concrete.Coal ash instead clay makees correction material, when that in manufacture of cement, when the dioxide-containing silica of clay is higher, can be used by using coal ash instead part of clay, the KH values of raw material, n, p value is adjusted as clay correction material.Flyash of the present invention is by the reasonable coordination ratio with silicon raw material clay high; the match ratio of cement slurry can be optimized; while optimized mix-proportion; coal consumption can also be reduced; the generation of liquid phase is burnt till in promotion; reduce the dispensing of ferriferous raw material; lime saturation factor is improved, more silicate minerals are produced, the early strength and later strength of clinker is improved; protect clay resource; expand flyash and use approach, more soils are protected while production cost is reduced, meet the industrial policy of country; while solving industrial waste, clinker product quality is improved.
Description
Technical field
The present invention relates to flyash applied technical field, specifically a kind of coal ash instead clay makees correction material.
Background technology
In manufacture of cement, because the place of production is different, cause the chemical composition of clay also different, particularly in clay two
It is larger on the dispensing influence in manufacture of cement when silica is changed greatly, and flyash is the catching from the flue gas after coal combustion
The fine ash got off, flyash is the primary solids waste of coal-burning power plant's discharge.With the development of power industry, the powder of coal-burning power plant
Coal ash discharge capacity increases year by year, as one of larger industrial residue of the current discharge capacity of China.If not processed its meeting rationally
Certain environmental pollution is caused, certain wasting of resources can be caused again, therefore, corrected we have proposed coal ash instead clay
Raw material.
The content of the invention
Make correction material it is an object of the invention to provide a kind of coal ash instead clay, it passes through flyash and silicon raw material high
The reasonable coordination ratio of clay, can optimize the match ratio of cement slurry, can reduce coal consumption, improve early strength and the later stage of clinker
Intensity, protects clay resource, while solving industrial waste, improves clinker product quality.
The purpose of the present invention is achieved through the following technical solutions:Coal ash instead clay makees correction material, its scheme
It is as follows:
When in manufacture of cement, when the dioxide-containing silica of clay is higher, being used by using coal ash instead part of clay, with
The KH values of raw material are adjusted as clay correction material, n, p value, specific replacement match somebody with somebody such as table 2;
Coal ash instead clay makees correction material proportioning, table 2
Lime stone | Clay | Flyash | Iron powder | Anthracite | Amount to | |
Common raw-meal ingredient | 72 | 12 | / | 3.0 | 13.0 | 100 |
Flyash makees correction material proportioning | 72 | 8.2 | 4.2 | 2.8 | 12.8 | 100 |
Beneficial effects of the present invention:Flyash of the present invention can optimize cement by the reasonable coordination ratio with silicon raw material clay high
The match ratio of raw material, while optimized mix-proportion, moreover it is possible to reduce coal consumption, the generation of liquid phase is burnt till in promotion, reduces ferriferous raw material
Dispensing, improve lime saturation factor, produce more silicate minerals, improve the early strength and later strength of clinker, protect
Clay resource is protected, has been expanded flyash and is used approach, more soils have been protected while production cost is reduced, met country
Industrial policy, solve industrial waste while, improve clinker product quality.
Specific embodiment
Experiment raw material:
Lime stone
Clay
Flyash(0.045 tails over 58.2)
Iron powder
Anthracite.
Test apparatus:
Disc mill
500*500 test mills
Blain specific surface instrument
Electronic analytical balance(A ten thousandth)
Electronic analytical balance(One thousandth)
High temperature furnace
Drying box
Sealed type sample pulverizer, analysis sampling machine
Silver crucible
Hydrochloric acid
NaOH
Phenolphthalein indicator
Nitric acid
Sulfuric acid
Sulfosalicylic acid sodium salt
Copper sulphate
Ammoniacal liquor
NaAc_HAc buffer solution
PAN indicator
Potassium chloride
Quantitative filter paper
Sodium potassium tartrate tetrahydrate.
Test procedure:
1st, 100g is weighed respectively by the clay of drying and the sample of flyash, then is respectively put into analysis sampling machine crush 3-5 points
Clock, big particle is screened out with 0.08, is weighed residue on sieve and is performed an analysis use.
2nd, the sample 0.5g dried in 105-1100C accurately is weighed, is placed in silver crucible.Plus 2g natrium carbonicum calcinatums,
Stirred with thin glass bar, then spreading a thin layer sodium carbonate above, cover crucible cover, be placed on blowtorch and 4-5 is heated with weak fire
Minute, by GB/T176-1996 Method for chemical analysis of cement, the chemical composition of clay and flyash is determined respectively.
3rd, the chemical composition such as table 1 of flyash and clay is measured:
Loss | SiO2 | Fe2O3 | Al2O3 | CaO | MgO | Acid non-soluble substance | |
Clay | 6.12 | 66.82 | 5.58 | 16.01 | 1.61 | 1.22 | 2.64 |
Flyash | 2.86 | 48.4 | 5.12 | 37.31 | 5.60 | 1.35 | 2.22 |
Pocket clay | 5.12 | 72.08 | 4.02 | 15.84 | 1.68 | 1.34 | 2.52 |
4th, the silica of unselected clay is 66.82, and the silica of pocket clay is 72.08, clay ingredient scheme at this moment
Adjustment is just needed, and the silica of flyash is 48.4, after adding flyash in the ratio of table 2, as clay correction material, energy
The KH values of regulation raw material, n, p value are played well.
Coal ash instead clay makees correction raw material ratio, table 2
Lime stone | Clay | Flyash | Iron powder | Anthracite | Amount to | |
Common raw-meal ingredient | 72 | 12 | / | 3.0 | 13.0 | 100 |
Flyash makees correction material proportioning | 72 | 8.2 | 4.2 | 2.8 | 12.8 | 100 |
Fine coal ash composition and silicate component are close, can also play crystal seed effect, are played in the calcination process of clinker
Induce the generation in advance of silicate mineral, reduction to burn till heat consumption, reduce fuel, while saving production cost.Through experiment, part is used
Coal ash instead clay makees correction raw material, can save fire coal, because the iron in flyash can also substitute a small amount of iron powder, from reality
In the production of border, correction raw material are made with flyash, while production is saved, the clinker of high yield, high-quality can be produced, because
Flyash also acts as certain catalyst action, plays inducing action, occurs liquid phase in advance.
Conclusion:
1st, flyash can optimize the match ratio of cement slurry by the reasonable coordination ratio with silicon raw material clay high.
2nd, when flyash is made clay correction material and used, while optimized mix-proportion, moreover it is possible to reduce coal consumption, promote to burn till
The generation of liquid phase, reduces the dispensing of ferriferous raw material, improves lime saturation factor, produces more silicate minerals, improves clinker
Early strength and later strength.
3rd, rational part coal ash instead clay makees correction raw material, protects clay resource, expands flyash and uses
Approach, more soils are protected while production cost is reduced, and meet the industrial policy of country, solve the same of industrial waste
When, improve clinker product quality.
Claims (1)
1. coal ash instead clay makees correction material, it is characterised in that scheme is as follows:
When in manufacture of cement, when the dioxide-containing silica of clay is higher, being used by using coal ash instead part of clay, with
The KH values of raw material are adjusted as clay correction material, n, p value, specific replacement match somebody with somebody such as table 2;
Coal ash instead clay makees correction material proportioning, table 2
。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201611251833.0A CN106746803A (en) | 2016-12-30 | 2016-12-30 | Coal ash instead clay makees correction material |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201611251833.0A CN106746803A (en) | 2016-12-30 | 2016-12-30 | Coal ash instead clay makees correction material |
Publications (1)
Publication Number | Publication Date |
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CN106746803A true CN106746803A (en) | 2017-05-31 |
Family
ID=58928086
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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CN201611251833.0A Pending CN106746803A (en) | 2016-12-30 | 2016-12-30 | Coal ash instead clay makees correction material |
Country Status (1)
Country | Link |
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CN (1) | CN106746803A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107382106A (en) * | 2017-07-21 | 2017-11-24 | 高建华 | A kind of cement production process |
CN111233354A (en) * | 2020-03-13 | 2020-06-05 | 杭州富阳南方水泥有限公司 | Method for producing general cement clinker by partially replacing iron correction raw material with fly ash |
-
2016
- 2016-12-30 CN CN201611251833.0A patent/CN106746803A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107382106A (en) * | 2017-07-21 | 2017-11-24 | 高建华 | A kind of cement production process |
CN111233354A (en) * | 2020-03-13 | 2020-06-05 | 杭州富阳南方水泥有限公司 | Method for producing general cement clinker by partially replacing iron correction raw material with fly ash |
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PB01 | Publication | ||
PB01 | Publication | ||
WD01 | Invention patent application deemed withdrawn after publication | ||
WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170531 |