CN109437623A - A kind of Portland clinker and preparation method thereof - Google Patents
A kind of Portland clinker and preparation method thereof Download PDFInfo
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- CN109437623A CN109437623A CN201811611383.0A CN201811611383A CN109437623A CN 109437623 A CN109437623 A CN 109437623A CN 201811611383 A CN201811611383 A CN 201811611383A CN 109437623 A CN109437623 A CN 109437623A
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- lime stone
- molding sand
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- waste
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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
- C04B7/24—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
- C04B7/38—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
-
- 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
- C04B7/434—Preheating with addition of fuel, e.g. calcining
-
- 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
- C04B7/44—Burning; Melting
-
- 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
Abstract
The invention discloses a kind of Portland clinkers and preparation method thereof, are related to cement preparation technical field.The raw material weight percentage that the present invention prepares Portland clinker is calcareous material: lime stone 42-72%, siliceous material 1-20%, supplement calcium material 10-40%, ferrous material 0-5%；Iron aluminum material 3-15%；The supplement calcium material is lime stone molding sand waste；Lime stone molding sand waste application clinker can be Reducing Cost in Enterprises, turned waste into wealth by the present invention, have huge Social benefit and economic benefit to society and enterprise.
Description
Technical field
Invention is related to technical field of cement production, more specifically to a kind of Portland clinker and its
Preparation method.
Background technique
Lime stone molding sand is the important mold of casting industry medium casting moulding, by roughing sand, binder and water etc. by certain ratio
Example is mixed, and the auxiliary materials such as coal dust or sawdust are added sometimes.Statistics, often producing one ton of castings can produce about
1.2 tons of waste sands.At least several ten million tons of waste molding sand of casting generation, quantity is very big.However China's casting industry technology
Level is low, energy consumption is high, disposal of pollutants problem long-term existence, and lime stone sand reclamation difference leads to the antiquated sand that Foundry Production gives off
Amount is significantly increased, and casting cost improves, and each foundry enterprises seldom put into regeneration receiving unit, cause to discharge every year, topple over it is useless
Several ten million tons of the molding sand of abandoning, and at the trend that rises year by year, it does not only take up and largely piles up place, and the complicated component of molding sand, have
There is alkalinity, it is serious to will cause underground water pollution, it threatens human health and causes resource serious waste, therefore study lime stone
Molding sand waste again using there is highly important social effect.
State Intellectual Property Office discloses a Publication No. CN102491701B on January 9th, 2013, and entitled " one
The patent of invention of the method for kind preparing clinker with oil shale residues ", the patent of invention 1. by oil shale residues, lime stone,
Iron tailings sand, molding sand mix according to the following ratio: lime stone: 81-84%；Shale waste residue: 12-15%；Iron tailings sand: 1-2%；Molding sand:
2-4%；2. by step, 1. gained mixture grinding at 80 μm of square hole screens tails over the raw material less than 5%, then by raw material in 1350-
1450 DEG C of temperature lower calcination 15-20 minutes, up to clinker after cooling.Its Sand mixes on a small quantity, for clinker
Sintering process substantially without influence, also a large amount of uses of molding sand are not tested.
Summary of the invention
In order to overcome above-mentioned defect existing in the prior art and deficiency, this application provides a kind of portland cement is ripe
Material, Portland clinker of the invention substitute part lime stone using lime stone molding sand waste, can solve molding sand waste
Utilizing question again, the production cost of portland cement can also be reduced, by lime stone molding sand waste application clinker,
It can be Reducing Cost in Enterprises, turn waste into wealth have huge Social benefit and economic benefit to society and enterprise.
The invention also discloses a kind of preparation method of Portland clinker, preparation method of the invention uses lime stone
Molding sand waste substitutes part lime stone, and microelement reduces clinker and go out as the mineralizer during cement burning in molding sand
The temperature of existing liquid phase, saves the firing energy consumption of clinker；It can be enterprise by lime stone molding sand waste application burning clinker of cement
Cost is reduced, is turned waste into wealth, has huge Social benefit and economic benefit to society and enterprise.
In order to solve above-mentioned problems of the prior art, the application is achieved through the following technical solutions:
A kind of Portland clinker, it is characterised in that: the raw material comprising following weight percent: calcareous material: lime stone 42-
72%, siliceous material 1-20%, supplement calcium material 10-40%, ferrous material 0-5%；Iron aluminum material 3-15%；The supplement calcium
Material is lime stone molding sand waste.
Preferably, the raw material comprising following weight percent: lime stone 45.2%, quartz sand 9.1%, flyash 1.0, clay
Dry agent lime stone molding sand waste 40%, sulfate slag 0.5%, high-speed rail aluminium barren rock 2.7%.
Preferably, the raw material comprising following weight percent: lime stone 63.0%, quartz sand 13.0%, waterglass lime stone
Molding sand waste 20.5%, sulfate slag 2.5%, high-speed rail aluminium barren rock 1%.
Preferably, the raw material comprising following weight percent: lime stone 71.9%, quartz sand 14%, waterglass clay lime
Stone-type sand waste 10.0%, Copper Slag 1.9%, low-grade bauxite 2.1%.
Preferably, the raw material comprising following weight percent: lime stone 69.3%, shale 15.2%, waterglass lime stone-type
Sand waste 10%, sulfate slag 5%, high-speed rail aluminium barren rock 0.5%.
Further, the siliceous material is mixing one or more in clay, shale, quartz sand and flyash.
Further, the ferrous material is a kind of in sulfate slag, non-ferrous metal slag, Copper Slag, lead cadmia and manganese slag
Or a variety of mixing.
Further, the iron aluminum material be it is a kind of in high-speed rail bauxite, low-grade bauxite and aluminium ore barren rock or
A variety of mixing.
A kind of preparation method of Portland clinker, it is characterised in that: the following steps are included:
A, raw material destruction step: lime stone molding sand waste is crushed using impact breaker；Siliceous material, calcareous material
Material, ferrous material and iron aluminum material are broken using the broken level-one that carries out of Hubei Province formula, carry out two-stage crushing, control using reaction type is broken
Making into abrasive grain diameter is less than 20mm；
B, raw material mixed powder grinds step: by broken siliceous material, calcareous material, ferrous material, iron aluminum material and lime
Stone-type sand waste is mixed according to following weight percentage:
Calcareous material: lime stone 42-72%, siliceous material 1-20%, lime stone molding sand waste 10-40%, ferrous material 0-5%；
Iron aluminum material 3-15%；Drying and processing is carried out, raw material is uniformly mixed, raw material after mixing is carried out by ball mill
Grinding, final size are that the particle weight greater than 80 μm is no more than 10-20%；
C, calcining step: the raw material after grinding in step B being added in rotary kiln and is calcined, calcination temperature 1300-1380
DEG C, 30-60min is calcined, after the completion of calcining, is cooled to room temperature, obtains silicate cement clinker.
In raw material destruction step, to the broken broken using impact breaker progress level-one of lime stone molding sand waste
It is broken, the feeding trough grid section gap 500mm of impact breaker, by belt conveyor by feedstock transportation to impact breaker,
Crushed particles partial size is less than 25mm.
Preferably, the raw material comprising following weight percent: lime stone 45.2%, quartz sand 9.1%, flyash 1.0, clay
Dry agent lime stone molding sand waste 40%, sulfate slag 0.5%, high-speed rail aluminium barren rock 2.7%.
Preferably, the raw material comprising following weight percent: lime stone 63.0%, quartz sand 13.0%, waterglass lime stone
Molding sand waste 20.5%, sulfate slag 2.5%, high-speed rail aluminium barren rock 1%.
Preferably, the raw material comprising following weight percent: lime stone 71.9%, quartz sand 14.0%, waterglass claystone
Lime stone molding sand waste 10.0%, Copper Slag 1.9%, low-grade bauxite 2.1%.
Preferably, the raw material comprising following weight percent: lime stone 69.3%, shale 15.2%, waterglass lime stone-type
Sand waste 10%, sulfate slag 5%, high-speed rail aluminium barren rock 0.5%.
Further, the siliceous material is mixing one or more in clay, shale, quartz sand and quartz sand.
Further, the ferrous material is a kind of in sulfate slag, non-ferrous metal slag, Copper Slag, lead cadmia and manganese slag
Or a variety of mixing.
Further, the iron aluminum material be it is a kind of in high-speed rail bauxite, low-grade bauxite and aluminium ore barren rock or
A variety of mixing.
Compared with prior art, technical effect beneficial brought by the application is shown:
1, part lime stone, microelement in lime stone molding sand waste are substituted using lime stone molding sand waste in the present invention
As the mineralizer during cement burning, reduces clinker and the temperature of liquid phase occur, reduce firing temperature, save the firing of clinker
Energy consumption, and because lime stone molding sand waste price is well below lime stone price, some only need to pay freight, and cost is lower.
Therefore by lime stone molding sand waste application burning clinker of cement, it can be Reducing Cost in Enterprises, turn waste into wealth.
2, part lime stone in the present invention, is substituted using lime stone molding sand waste, can solve to think what waste again
Utilizing question can also reduce the production cost of portland cement, while the preparation method in the application is in calcination of cement clinker
When, calcination temperature is lower than the calcination temperature of existing preparation process, is also due to microelement conduct in lime stone molding sand waste
Mineralizer during cement burning reduces clinker and the temperature of liquid phase occurs, reduce firing temperature, saves the firing of clinker
Energy consumption.
3, portland cement in the present invention, is prepared using lime stone molding sand waste substitution part raw limestone, is made
The physical property of standby obtained portland cement does not reduce, but increases, and specific data are referring to the embodiment of the present application portion
Point, each age aquation calorific value of low-heat portland cement clinker aggregate of lime stone molding sand discarded sections substitution limestone calcination is below
The value of common low-heat portland cement clinker aggregate, setting time also changes without apparent, micro in clinker in terms of cement mortar strength
Ion, which is dissolved into dicalcium silicate and tricalcium silicate, enhances the defect of mineral crystal, greatly improves cement early stage cement mortar strength
With 28 days intensity.
4, for from preparation method, since the roughing sand group of lime stone molding sand waste becomes the lime stone of 20-30 mesh
Grain, the adhesion strength of binder is not high, and when being crushed, lime stone molding sand waste is easy to defeated and dispersed, easily broken to incite somebody to action
The broken level-one that is reduced to of two-stage is broken, reduces broken process, although it is larger to enter mill control partial size, is easy to grinding, reduces
The broken and grinding cost of raw material.
5, the present invention is mixing low-heat portland cement clinker aggregate prepared by the present invention and dihydrate gypsum according to the ratio of 95:5
Grinding is closed at cement, and by existing common low-heat portland cement and dihydrate gypsum according to identical ratio combined grinding Cheng Shui
Mud carries out physical property detection.The composition of raw materials and physical property and ordinary portland cement of Portland clinker of the present invention
Shown in the composition of raw materials and the following Tables 1 and 2 of the physical property table of comparisons of clinker:
Table 1
Table 2
Comparing result is obvious, with low-heat portland cement clinker aggregate each age of lime stone molding sand discarded sections substitution limestone calcination
Phase aquation calorific value is below the value of common low-heat portland cement clinker aggregate, and setting time also changes without apparent, in cement mortar strength
Aspect, the micro ion in clinker, which is dissolved into dicalcium silicate and tricalcium silicate, enhances the defect of mineral crystal, is greatly improved
Cement early stage cement mortar strength and 28 days intensity.
6, by Portland clinker prepared by the present invention and dihydrate gypsum according to the ratio combined grinding of 95:5 at cement,
And by existing ordinary portland cement and dihydrate gypsum according to identical ratio combined grinding at cement, carry out physical property inspection
It surveys.The composition of raw materials and physical property of Portland clinker of the present invention and the composition of raw materials and object of ordinary portland cement clinker
The rationality energy table of comparisons is as shown in table 3 below:
Table 3
As seen from the above table, the present invention substitutes 31.9% lime stone using 31.7% lime stone molding sand waste, is finally prepared
The physical property of cement is compared with general portland cement, and setting time is close, cement mortar strength increases, i.e., uses in the present invention
After the lower molding sand replacement part lime stone of cost, the physical property for the cement being prepared is not reduced not only, omits instead
There is increase.
Specific embodiment
Embodiment 1
As one preferred embodiment of the application, present embodiment discloses:
A kind of Portland clinker, the raw material comprising following weight percent: calcareous material: lime stone 42-72%, siliceous material
Expect 1-20%, supplement calcium material 10-40%, ferrous material 0-5%；Iron aluminum material 3-15%；The supplement calcium material is stone
Lime stone molding sand waste.The siliceous material is mixing one or more in clay, shale, quartz sand and flyash.It is described
Ferrous material is mixing one or more in sulfate slag, non-ferrous metal slag, Copper Slag, lead cadmia and manganese slag.The iron aluminum
Material is mixing one or more in high-speed rail bauxite, low-grade bauxite and aluminium ore barren rock.
Further, embodiment more preferably, using following ratio:
Table 4
Table 5
It is by above-mentioned comparing result it is found that ripe with the low-heat portland cement of lime stone molding sand discarded sections substitution limestone calcination
Expect that each age aquation calorific value is below the value of common low-heat portland cement clinker aggregate, setting time also changes without apparent, in glue
In terms of sand intensity, the micro ion in clinker, which is dissolved into dicalcium silicate and tricalcium silicate, enhances the defect of mineral crystal, pole
Cement early stage cement mortar strength and 28 days intensity are improved greatly.
Embodiment 2
It is further used as preferred embodiment, uses following ratio in the present embodiment:
Table 6
Embodiment 3
It is further used as preferred embodiment, the present embodiment uses following ratio:
Table 7
Embodiment 4
It is further used as preferred embodiment, the present embodiment uses following ratio:
Table 8
Embodiment 5
It is further used as preferred embodiment, a kind of Portland clinker, the raw material comprising following weight percent: lime stone
45.2%, quartz sand 9.1%, flyash 1.0, clay does agent lime stone molding sand waste 40%, sulfate slag 0.5%, high-speed rail aluminium barren rock
2.7%。
Embodiment 6
It is further used as preferred embodiment, a kind of Portland clinker, the raw material comprising following weight percent: lime stone
63.0%, quartz sand 13.0%, waterglass lime stone molding sand waste 20.5%, sulfate slag 2.5%, high-speed rail aluminium barren rock 1%.
Embodiment 7
It is further used as preferred embodiment, a kind of Portland clinker, the raw material comprising following weight percent: lime stone
71.9%, quartz sand 14%, waterglass clay lime stone molding sand waste 10.0%, Copper Slag 1.9%, low-grade bauxite 2.1%.
Embodiment 8
It is further used as preferred embodiment, a kind of Portland clinker, the raw material comprising following weight percent: lime stone
69.3%, shale 15.2%, waterglass lime stone molding sand waste 10%, sulfate slag 5%, high-speed rail aluminium barren rock 0.5%.
Embodiment 9
It is further used as preferred embodiment, a kind of Portland clinker, the raw material comprising following weight percent: calcareous material
Material: lime stone 42%, siliceous material 10%, supplement calcium material 40%, ferrous material 5%；Iron aluminum material 3%；The supplement calcium
Material is lime stone molding sand waste.
Embodiment 10
It is further used as preferred embodiment, a kind of Portland clinker, the raw material comprising following weight percent: calcareous material
Material: lime stone 72%, siliceous material 12%, supplement calcium material 12%, iron aluminum material 15%；The supplement calcium material is lime
Stone-type sand waste.
Embodiment 11
It is further used as preferred embodiment, a kind of Portland clinker, the raw material comprising following weight percent: calcareous material
Material: lime stone 60%, siliceous material 20%, supplement calcium material 10%, iron aluminum material 10%；The supplement calcium material is lime
Stone-type sand waste.
Embodiment 12
A kind of preparation method of Portland clinker, comprising the following steps:
A, raw material destruction step: lime stone molding sand waste is crushed using impact breaker；Siliceous material, calcareous material
Material, ferrous material and iron aluminum material are broken using the broken level-one that carries out of Hubei Province formula, carry out two-stage crushing, control using reaction type is broken
Making into abrasive grain diameter is less than 20mm；
B, raw material mixed powder grinds step: by broken siliceous material, calcareous material, ferrous material, iron aluminum material and lime
Stone-type sand waste is mixed according to following weight percentage:
Calcareous material: lime stone 42-72%, siliceous material 1-20%, lime stone molding sand waste 10-40%, ferrous material 0-5%；
Iron aluminum material 3-15%；Drying and processing is carried out, raw material is uniformly mixed, raw material after mixing is carried out by ball mill
Grinding, final size are that the particle weight greater than 80 μm is no more than 10-20%；
C, calcining step: the raw material after grinding in step B being added in rotary kiln and is calcined, calcination temperature 1300-1380
DEG C, 30-60min is calcined, after the completion of calcining, is cooled to room temperature, obtains silicate cement clinker.
Embodiment 13
It is further used as preferred embodiment, a kind of preparation method of Portland clinker, comprising the following steps: A, raw material are broken
Quick short steps are rapid: being crushed using impact breaker to lime stone molding sand waste；In raw material destruction step, to lime stone-type
Broken broken using impact breaker progress level-one, the feeding trough grid section gap 500mm of impact breaker of sand waste,
By belt conveyor by feedstock transportation to impact breaker, crushed particles partial size is less than 25mm；
Siliceous material, calcareous material, ferrous material and iron aluminum material are broken using the broken level-one that carries out of Hubei Province formula, using reaction type
Broken to carry out two-stage crushing, controlling into abrasive grain diameter is less than 20mm；
B, raw material mixed powder grinds step: by broken siliceous material, calcareous material, ferrous material, iron aluminum material and lime
Stone-type sand waste is mixed according to following weight percentage:
Calcareous material: lime stone 63.0%, quartz sand 13.0%, waterglass lime stone molding sand waste 20.5%, sulfate slag 2.5%,
High-speed rail aluminium barren rock 1%；Drying and processing is carried out, raw material is uniformly mixed, raw material after mixing is subjected to powder by ball mill
Mill, final size are that the particle weight greater than 80 μm is no more than 10-20%；
C, calcining step: the raw material after grinding in step B being added in rotary kiln and is calcined, and 1300 DEG C of calcination temperature, is forged
60min is burnt, after the completion of calcining, is cooled to room temperature, obtains silicate cement clinker.
Embodiment 14
It is further used as preferred embodiment, a kind of preparation method of Portland clinker, comprising the following steps: A, raw material are broken
Quick short steps are rapid: being crushed using impact breaker to lime stone molding sand waste；In raw material destruction step, to lime stone-type
Broken broken using impact breaker progress level-one, the feeding trough grid section gap 500mm of impact breaker of sand waste,
By belt conveyor by feedstock transportation to impact breaker, crushed particles partial size is less than 25mm；
Siliceous material, calcareous material, ferrous material and iron aluminum material are broken using the broken level-one that carries out of Hubei Province formula, using reaction type
Broken to carry out two-stage crushing, controlling into abrasive grain diameter is less than 20mm；
B, raw material mixed powder grinds step: by broken siliceous material, calcareous material, ferrous material, iron aluminum material and lime
Stone-type sand waste is mixed according to following weight percentage:
Calcareous material: lime stone 71.9%, quartz sand 14%, waterglass clay lime stone molding sand waste 10.0%, Copper Slag
1.9%, low-grade bauxite 2.1%；Drying and processing is carried out, raw material is uniformly mixed, raw material after mixing is passed through into ball milling
Machine carries out grinding, and final size is that the particle weight greater than 80 μm is no more than 10-20%；
C, calcining step: the raw material after grinding in step B being added in rotary kiln and is calcined, and 1320 DEG C of calcination temperature, is forged
60min is burnt, after the completion of calcining, is cooled to room temperature, obtains silicate cement clinker.
Embodiment 15
It is further used as preferred embodiment, a kind of preparation method of Portland clinker, comprising the following steps: A, raw material are broken
Quick short steps are rapid: being crushed using impact breaker to lime stone molding sand waste；In raw material destruction step, to lime stone-type
Broken broken using impact breaker progress level-one, the feeding trough grid section gap 500mm of impact breaker of sand waste,
By belt conveyor by feedstock transportation to impact breaker, crushed particles partial size is less than 25mm；
Siliceous material, calcareous material, ferrous material and iron aluminum material are broken using the broken level-one that carries out of Hubei Province formula, using reaction type
Broken to carry out two-stage crushing, controlling into abrasive grain diameter is less than 20mm；
B, raw material mixed powder grinds step: by broken siliceous material, calcareous material, ferrous material, iron aluminum material and lime
Stone-type sand waste is mixed according to following weight percentage:
Calcareous material: lime stone 69.3%, shale 15.2%, waterglass lime stone molding sand waste 10%, sulfate slag 5%, high-speed rail aluminium
Barren rock 0.5%；Drying and processing is carried out, raw material is uniformly mixed, raw material after mixing is subjected to grinding by ball mill, most
Whole granularity is that the particle weight greater than 80 μm is no more than 10-20%；
C, calcining step: the raw material after grinding in step B being added in rotary kiln and is calcined, and 1350 DEG C of calcination temperature, is forged
60min is burnt, after the completion of calcining, is cooled to room temperature, obtains silicate cement clinker.
Embodiment 16
It is further used as preferred embodiment, a kind of preparation method of Portland clinker, comprising the following steps: A, raw material are broken
Quick short steps are rapid: being crushed using impact breaker to lime stone molding sand waste；In raw material destruction step, to lime stone-type
Broken broken using impact breaker progress level-one, the feeding trough grid section gap 500mm of impact breaker of sand waste,
By belt conveyor by feedstock transportation to impact breaker, crushed particles partial size is less than 25mm；
Siliceous material, calcareous material, ferrous material and iron aluminum material are broken using the broken level-one that carries out of Hubei Province formula, using reaction type
Broken to carry out two-stage crushing, controlling into abrasive grain diameter is less than 20mm；
B, raw material mixed powder grinds step: by broken siliceous material, calcareous material, ferrous material, iron aluminum material and lime
Stone-type sand waste is mixed according to following weight percentage:
Calcareous material: lime stone 42%, siliceous material 10%, supplement calcium material 40%, ferrous material 5%；Iron aluminum material 3%；Into
Row drying and processing, raw material is uniformly mixed, by raw material after mixing by ball mill carry out grinding, final size be greater than
80 μm of particle weight is no more than 10-20%；
C, calcining step: the raw material after grinding in step B being added in rotary kiln and is calcined, and 1380 DEG C of calcination temperature, is forged
60min is burnt, after the completion of calcining, is cooled to room temperature, obtains silicate cement clinker.
Claims (10)
1. a kind of Portland clinker, it is characterised in that: the raw material comprising following weight percent: calcareous material: lime stone
42-72%, siliceous material 1-20%, supplement calcium material 10-40%, ferrous material 0-5%；Iron aluminum material 3-15%；The supplement
Calcareous material is lime stone molding sand waste.
2. a kind of Portland clinker as described in claim 1, it is characterised in that: the original comprising following weight percent
Material: lime stone 45.2%, quartz sand 9.1%, flyash 1.0, clay do agent lime stone molding sand waste 40%, and sulfate slag 0.5% is high
Iron aluminium barren rock 2.7%.
3. a kind of Portland clinker as described in claim 1, it is characterised in that: the original comprising following weight percent
Material: lime stone 63.0%, quartz sand 13.0%, waterglass lime stone molding sand waste 20.5%, sulfate slag 2.5%, high-speed rail aluminium barren rock
1%。
4. a kind of Portland clinker as described in claim 1, it is characterised in that: the original comprising following weight percent
Material: lime stone 71.9%, quartz sand 14%, waterglass clay lime stone molding sand waste 10.0%, Copper Slag 1.9%, low-grade aluminium
Alumina 2.1%.
5. a kind of Portland clinker as described in claim 1, it is characterised in that: the original comprising following weight percent
Material: lime stone 69.3%, shale 15.2%, waterglass lime stone molding sand waste 10%, sulfate slag 5%, high-speed rail aluminium barren rock 0.5%.
6. a kind of preparation method of Portland clinker, it is characterised in that: the following steps are included:
A, raw material destruction step: lime stone molding sand waste is crushed using impact breaker；Siliceous material, calcareous material
Material, ferrous material and iron aluminum material are broken using the broken level-one that carries out of Hubei Province formula, carry out two-stage crushing, control using reaction type is broken
Making into abrasive grain diameter is less than 20mm；
B, raw material mixed powder grinds step: by broken siliceous material, calcareous material, ferrous material, iron aluminum material and lime
Stone-type sand waste is mixed according to following weight percentage:
Calcareous material: lime stone 42-72%, siliceous material 1-20%, lime stone molding sand waste 10-40%, ferrous material 0-5%；
Iron aluminum material 3-15%；Drying and processing is carried out, raw material is uniformly mixed, raw material after mixing is carried out by ball mill
Grinding, final size are that the particle weight greater than 80 μm is no more than 10-20%；
C, calcining step: the raw material after grinding in step B being added in rotary kiln and is calcined, calcination temperature 1300-1380
DEG C, 30-60min is calcined, after the completion of calcining, is cooled to room temperature, obtains silicate cement clinker.
7. a kind of preparation method of Portland clinker as claimed in claim 6, it is characterised in that: in raw material destruction step
In, to broken broken, the feeding trough of impact breaker using impact breaker progress level-one of lime stone molding sand waste
Grid section gap 500mm, by belt conveyor by feedstock transportation to impact breaker, crushed particles partial size is less than 25mm.
8. a kind of preparation method of Portland clinker as claimed in claim 6, it is characterised in that: the step B Central Plains
Expect mixed weight percentage are as follows: lime stone 45.2%, quartz sand 9.1%, flyash 1.0, clay do agent lime stone molding sand waste
40%, sulfate slag 0.5%, high-speed rail aluminium barren rock 2.7%.
9. a kind of preparation method of Portland clinker as claimed in claim 6, it is characterised in that: the step B Central Plains
Expect mixed weight percentage are as follows: lime stone 63.0%, quartz sand 13.0%, waterglass lime stone molding sand waste 20.5%, sulfate slag
2.5%, high-speed rail aluminium barren rock 1%.
10. a kind of preparation method of Portland clinker as claimed in claim 6, it is characterised in that: the step B Central Plains
Expect mixed weight percentage are as follows: the raw material comprising following weight percent: lime stone 71.9%, quartz sand 14%, waterglass clay
Lime stone molding sand waste 10.0%, Copper Slag 1.9%, low-grade bauxite 2.1%.
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| CN112250330A (en) * | 2020-09-11 | 2021-01-22 | 邓州中联水泥有限公司 | Green environment-friendly cement and preparation method thereof |
| CN113185154A (en) * | 2021-01-11 | 2021-07-30 | 中国地质科学院矿产综合利用研究所 | Method for preparing cement clinker by using rare earth tailings |
| CN113493317A (en) * | 2020-04-03 | 2021-10-12 | 张延年 | Portland cement clinker prepared from multiple solid wastes and preparation method thereof |
| CN114702258A (en) * | 2022-04-19 | 2022-07-05 | 枣庄中联水泥有限公司 | Raw material proportioning process |
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Application publication date: 20190308 |