CN107721209A - A kind of portland cement and preparation method - Google Patents
A kind of portland cement and preparation method Download PDFInfo
- Publication number
- CN107721209A CN107721209A CN201711075660.6A CN201711075660A CN107721209A CN 107721209 A CN107721209 A CN 107721209A CN 201711075660 A CN201711075660 A CN 201711075660A CN 107721209 A CN107721209 A CN 107721209A
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- China
- Prior art keywords
- raw material
- portland cement
- clinker
- cement
- preparation
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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
- C04B7/02—Portland cement
- C04B7/04—Portland cement using raw materials containing gypsum, i.e. processes of the Mueller-Kuehne type
-
- 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
- C04B7/44—Burning; Melting
Abstract
The invention discloses a kind of portland cement, including the Portland clinker using silicate as main component, in addition to land plaster, zeolite powder and pulverulent mixture etc., its proportioning are：Land plaster 2%~4%, zeolite powder 6.5%~9.5%, pulverulent mixture 86%~90%.The invention also discloses a kind of preparation method of portland cement, by broken, pre- homogenizing, it is prepared by raw material, raw material are homogenized, pre- thermal decomposition, burning till for clinker is made with cement grinding, the portland cement of the present invention, cost is low, intensity is high, wearability is good, available for road surface and ground surface works, and the portland cement of which production has compatibility good, fast solidifying, early strength and later strength are high, suitable for there is the concrete of early strong demand, winter construction concrete, on the ground, the high-strength concrete and prestressed concrete engineering of underground important feature.
Description
Technical field
The present invention relates to cement；More particularly to a kind of portland cement, the preparation method of the portland cement is further related to.
Background technology
Cement：Powdery hydraulicity inorganic coagulation material.Add water stir after into slurry, can harden in atmosphere or in water
Preferably hardening, and can the materials such as sand, stone is cemented together securely.The mixture of early stage lime and volcanic ash and modern times
Lime pozzolanic cement is much like, and the concrete made of its cementing rubble, not only intensity is higher after hardening, and can also resist
The erosion of fresh water or brackish water.For a long time, it is as a kind of important binder materials, be widely used in civil construction, water conservancy,
The engineerings such as national defence.Cement is divided into by purposes and performance：General-purpose cement, cement special and characteristic cement three major types.It is all with calcium silicates
Based on Portland clinker, less than 5% lime stone or granulated blast-furnace slag, hydraulicity glue made of proper amount of gypsum is levigate
Gel material, it is referred to as portland cement.Portland cement divides two types, and be not spiked with mixing material is referred to as I type silicate cement
Mud, code name P I；Admixture is no more than the lime stone of cement quality 5% or the referred to as II type silicic acid of granulated blast-furnace slag mixing material
Salt cement, code name P II.The essential mineral of portland cement forms：Tricalcium silicate, dicalcium silicate, tricalcium aluminate, iron aluminic acid
Four calcium.Tricalcium silicate decides the intensity in four week of portland cement；Ability Developed fiber strength acts on after the week of dicalcium silicate four；
Tricalcium aluminate intensity plays comparatively fast, but low intensity；The intensity of tetra calcium aluminoferrite plays also very fast.In existing technology of preparing, water
The solidification duration of mud can not control, and intensity is relatively low, if running into bad weather in process of setting, will result in asking for waste material
Topic, it is this it is proposed that a kind of portland cement and preparation method.
The content of the invention
It is an object of the invention to provide a kind of portland cement and preparation method, to solve to propose in above-mentioned background technology
The solidification duration of cement can not control, and intensity is relatively low, if running into bad weather in process of setting, will result in waste material
The problem of.
To achieve the above object, the present invention provides following technical scheme：
A kind of portland cement, including the Portland clinker using silicate as main component, in addition to land plaster, boiling
Stone flour and pulverulent mixture etc., its proportioning are：Land plaster 2%~4%, zeolite powder 6.5%~9.5%, pulverulent mixture 86%
~90%.
Preferably, the raw material of following pbw is included：Land plaster 3%, zeolite powder 7.0%, pulverulent mixture 88%.
The invention also discloses a kind of preparation method of portland cement, comprise the following steps：
Step 1：It is broken, bulk materials are crushed to tiny, uniform granularity from suitable disintegrating apparatus；
Step 2：Pre- homogenizing, during the depositing, withdrawing of raw material, with the heap feeding technology of science, realize the preliminary of raw material
Homogenizing, material storage yard is set to be provided simultaneously with storage and the function of homogenizing；
Step 3：Prepared by raw material, calcareous raw material, clayey raw material and partial correction raw material are mixed, and use powder
Mill apparatus carries out grinding；
Step 4：Raw material are homogenized, and using air stirring, Action of Gravity Field, are produced " funneling effect ", raw meal powder is unloaded downwards
When falling, multilayer charge level is cut as far as possible, is sufficiently mixed；
Step 5：Pre- thermal decomposition, the waste gas residual heat discharged using rotary kiln and dore furnace heat raw material, make raw material preheat and
Part thereof decomposes；
Step 6：Clinker is burnt till, and after raw material complete preheating and predecomposition in cyclone preheater, enters revolution
Burning till for clinker is carried out in kiln, carbonate further decomposes rapidly and a series of solid phase reaction occurs in rotary kiln, raw
Into mineral such as C3A, C4AF, C2S in clinker；
Step 7：Cement grinding, by cement grog grinding to suitable granularity, certain grain composition is formed, increases it
Water accessible area, acceleration of hydration speed, meet that cement slurry condenses, hardening requires.
As a preferred technical solution of the present invention, the temperature in the step 6 is 1300 DEG C.
As a preferred technical solution of the present invention, the pulverulent mixture composition and mass ratio are：Calcium oxide 20%,
Magnesia 66%, aluminum oxide 2%, iron oxide 2%, silica 1 0%.
As a preferred technical solution of the present invention, the clinker accounts for the 40% of whole compositions.
As a preferred technical solution of the present invention, the size of the pulverulent mixture particle is 50 microns.
Compared with prior art, the beneficial effects of the invention are as follows：Land plaster 2%~4%, zeolite powder 6.5%~9.5%,
Pulverulent mixture 86%~90% proportioning prepare portland cement, cost is low, intensity is high, and wearability is good, available for road surface with
Ground surface works, and the portland cement of which production has that compatibility is good, fast solidifying, early strength and later strength
Height, suitable for having the concrete of early strong demand, a winter construction concrete, on the ground, the high-strength concrete of underground important feature and pre-
Prestressed concrete engineering.
In addition to objects, features and advantages described above, the present invention also has other objects, features and advantages.
Below by embodiment, the present invention is further detailed explanation.
Embodiment
Embodiment 1
A kind of portland cement, including the Portland clinker using silicate as main component, in addition to land plaster, boiling
Stone flour and pulverulent mixture etc., and its proportioning is：Land plaster 2%, zeolite powder 6.5%, pulverulent mixture 86%.
A kind of preparation method of portland cement, it is characterised in that comprise the following steps：
Step 1：It is broken, bulk materials are crushed to tiny, uniform granularity from suitable disintegrating apparatus；
Step 2：Pre- homogenizing, during the depositing, withdrawing of raw material, with the heap feeding technology of science, realize the preliminary of raw material
Homogenizing, material storage yard is set to be provided simultaneously with storage and the function of homogenizing；
Step 3：Prepared by raw material, calcareous raw material, clayey raw material and partial correction raw material are mixed, and use powder
Mill apparatus carries out grinding；
Step 4：Raw material are homogenized, and using air stirring, Action of Gravity Field, are produced " funneling effect ", raw meal powder is unloaded downwards
When falling, multilayer charge level is cut as far as possible, is sufficiently mixed；
Step 5：Pre- thermal decomposition, the waste gas residual heat discharged using rotary kiln and dore furnace heat raw material, make raw material preheat and
Part thereof decomposes；
Step 6：Clinker is burnt till, and after raw material complete preheating and predecomposition in cyclone preheater, enters revolution
Burning till for clinker is carried out in kiln, carbonate further decomposes rapidly and a series of solid phase reaction occurs in rotary kiln, raw
Into mineral such as C3A, C4AF, C2S in clinker；
Step 7：Cement grinding, by cement grog grinding to suitable granularity, certain grain composition is formed, increases it
Water accessible area, acceleration of hydration speed, meet that cement slurry condenses, hardening requires.
Embodiment 2
A kind of portland cement, including the Portland clinker using silicate as main component, in addition to land plaster, boiling
Stone flour and pulverulent mixture etc., and its proportioning is：Land plaster 3%, zeolite powder 7.5%, pulverulent mixture 88%.
A kind of preparation method of portland cement, is comprised the following steps：
Step 1：It is broken, bulk materials are crushed to tiny, uniform granularity from suitable disintegrating apparatus；
Step 2：Pre- homogenizing, during the depositing, withdrawing of raw material, with the heap feeding technology of science, realize the preliminary of raw material
Homogenizing, material storage yard is set to be provided simultaneously with storage and the function of homogenizing；
Step 3：Prepared by raw material, calcareous raw material, clayey raw material and partial correction raw material are mixed, and use powder
Mill apparatus carries out grinding；
Step 4：Raw material are homogenized, and using air stirring, Action of Gravity Field, are produced " funneling effect ", raw meal powder is unloaded downwards
When falling, multilayer charge level is cut as far as possible, is sufficiently mixed；
Step 5：Pre- thermal decomposition, the waste gas residual heat discharged using rotary kiln and dore furnace heat raw material, make raw material preheat and
Part thereof decomposes；
Step 6：Clinker is burnt till, and after raw material complete preheating and predecomposition in cyclone preheater, enters revolution
Burning till for clinker is carried out in kiln, carbonate further decomposes rapidly and a series of solid phase reaction occurs in rotary kiln, raw
Into mineral such as C3A, C4AF, C2S in clinker；
Step 7：Cement grinding, by cement grog grinding to suitable granularity, certain grain composition is formed, increases it
Water accessible area, acceleration of hydration speed, meet that cement slurry condenses, hardening requires.
Embodiment 3
A kind of portland cement, including the Portland clinker using silicate as main component, in addition to land plaster, boiling
Stone flour and pulverulent mixture etc., and its proportioning is：Land plaster 4%, zeolite powder 9.5%, pulverulent mixture 90%.
A kind of preparation method of portland cement, is comprised the following steps：
Step 1：It is broken, bulk materials are crushed to tiny, uniform granularity from suitable disintegrating apparatus；
Step 2：Pre- homogenizing, during the depositing, withdrawing of raw material, with the heap feeding technology of science, realize the preliminary of raw material
Homogenizing, material storage yard is set to be provided simultaneously with storage and the function of homogenizing；
Step 3：Prepared by raw material, calcareous raw material, clayey raw material and partial correction raw material are mixed, and use powder
Mill apparatus carries out grinding；
Step 4：Raw material are homogenized, and using air stirring, Action of Gravity Field, are produced " funneling effect ", raw meal powder is unloaded downwards
When falling, multilayer charge level is cut as far as possible, is sufficiently mixed；
Step 5：Pre- thermal decomposition, the waste gas residual heat discharged using rotary kiln and dore furnace heat raw material, make raw material preheat and
Part thereof decomposes；
Step 6：Clinker is burnt till, and after raw material complete preheating and predecomposition in cyclone preheater, enters revolution
Burning till for clinker is carried out in kiln, carbonate further decomposes rapidly and a series of solid phase reaction occurs in rotary kiln, raw
Into mineral such as C3A, C4AF, C2S in clinker；
Step 7：Cement grinding, by cement grog grinding to suitable granularity, certain grain composition is formed, increases it
Water accessible area, acceleration of hydration speed, meet that cement slurry condenses, hardening requires.
Although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of changes, modification can be carried out to these embodiments, replace without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (7)
1. a kind of portland cement, including the Portland clinker using silicate as main component, in addition to land plaster, zeolite
Powder and pulverulent mixture etc., and its proportioning is：Land plaster 2%~4%, zeolite powder 6.5%~9.5%, pulverulent mixture 86%
~90%.
2. a kind of portland cement as claimed in claim 1, it is characterised in that include the raw material of following pbw：Gypsum
Powder 3%, zeolite powder 7.0%, pulverulent mixture 88%.
3. the preparation method of a kind of portland cement as described in claim 1~2, it is characterised in that comprise the following steps：
Step 1：It is broken, bulk materials are crushed to tiny, uniform granularity from suitable disintegrating apparatus；
Step 2：Pre- homogenizing, during the depositing, withdrawing of raw material, with the heap feeding technology of science, realize raw material it is preliminary
Change, material storage yard is provided simultaneously with storage and the function of homogenizing；
Step 3：Prepared by raw material, calcareous raw material, clayey raw material and partial correction raw material are mixed, and is filled using grinding
Put carry out grinding；
Step 4：Raw material are homogenized, and using air stirring, Action of Gravity Field, are produced " funneling effect ", raw meal powder is dropped downwards
When, multilayer charge level is cut as far as possible, is sufficiently mixed；
Step 5：Pre- thermal decomposition, the waste gas residual heat discharged using rotary kiln and dore furnace heat raw material, make raw material preheating and part
Carbonate decomposition；
Step 6：Clinker is burnt till, and after raw material complete preheating and predecomposition in cyclone preheater, is entered in rotary kiln
Burning till for clinker is carried out, carbonate further decomposes rapidly and a series of solid phase reaction occurs in rotary kiln, generates water
The mineral such as C3A, C4AF, C2S in mud clinker；
Step 7：Cement grinding, by cement grog grinding to suitable granularity, certain grain composition is formed, increases its aquation
Area, acceleration of hydration speed, meet that cement slurry condenses, hardening requires.
A kind of 4. preparation method of portland cement according to claim 3, it is characterised in that：Temperature in the step 6
Spend for 1300 DEG C.
A kind of 5. preparation method of portland cement according to claim 3, it is characterised in that：The pulverulent mixture into
Divide and mass ratio is：Calcium oxide 20%, magnesia 66%, aluminum oxide 2%, iron oxide 2%, silica 1 0%.
A kind of 6. preparation method of portland cement according to claim 3, it is characterised in that：The clinker accounts for entirely
The 40% of portion's composition.
A kind of 7. preparation method of portland cement according to claim 3, it is characterised in that：The pulverulent mixture grain
The size of son is 50 microns.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201711075660.6A CN107721209A (en) | 2017-11-06 | 2017-11-06 | A kind of portland cement and preparation method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711075660.6A CN107721209A (en) | 2017-11-06 | 2017-11-06 | A kind of portland cement and preparation method |
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| CN107721209A true CN107721209A (en) | 2018-02-23 |
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| CN201711075660.6A Pending CN107721209A (en) | 2017-11-06 | 2017-11-06 | A kind of portland cement and preparation method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108585561A (en) * | 2018-07-07 | 2018-09-28 | 河源市极致知管信息科技有限公司 | A kind of portland cement and preparation method thereof |
| CN108793784A (en) * | 2018-07-07 | 2018-11-13 | 河源市极致知管信息科技有限公司 | One kind containing kaolin composite material and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101367626A (en) * | 2008-09-26 | 2009-02-18 | 仝仲盛 | White portland cement |
| CN101423341A (en) * | 2008-09-26 | 2009-05-06 | 仝仲盛 | Portland cement |
| CN105330180A (en) * | 2015-11-19 | 2016-02-17 | 中国建筑材料科学研究总院 | Early-strength low-heat Portland cement and preparation method thereof |
| CN105985023A (en) * | 2015-01-30 | 2016-10-05 | 重庆雄创建筑工程技术有限公司 | Method for preparing Portland cement |
| CN105985025A (en) * | 2015-01-30 | 2016-10-05 | 重庆雄创建筑工程技术有限公司 | Portland cement formula |
-
2017
- 2017-11-06 CN CN201711075660.6A patent/CN107721209A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101367626A (en) * | 2008-09-26 | 2009-02-18 | 仝仲盛 | White portland cement |
| CN101423341A (en) * | 2008-09-26 | 2009-05-06 | 仝仲盛 | Portland cement |
| CN105985023A (en) * | 2015-01-30 | 2016-10-05 | 重庆雄创建筑工程技术有限公司 | Method for preparing Portland cement |
| CN105985025A (en) * | 2015-01-30 | 2016-10-05 | 重庆雄创建筑工程技术有限公司 | Portland cement formula |
| CN105330180A (en) * | 2015-11-19 | 2016-02-17 | 中国建筑材料科学研究总院 | Early-strength low-heat Portland cement and preparation method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108585561A (en) * | 2018-07-07 | 2018-09-28 | 河源市极致知管信息科技有限公司 | A kind of portland cement and preparation method thereof |
| CN108793784A (en) * | 2018-07-07 | 2018-11-13 | 河源市极致知管信息科技有限公司 | One kind containing kaolin composite material and preparation method thereof |
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Application publication date: 20180223 |
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