CN110407487A - A kind of preparation method for the portland cement that solidification duration is controllable - Google Patents
A kind of preparation method for the portland cement that solidification duration is controllable Download PDFInfo
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- CN110407487A CN110407487A CN201810393770.5A CN201810393770A CN110407487A CN 110407487 A CN110407487 A CN 110407487A CN 201810393770 A CN201810393770 A CN 201810393770A CN 110407487 A CN110407487 A CN 110407487A
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- China
- Prior art keywords
- raw material
- cement
- preparation
- portland cement
- grinding
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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
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
A kind of preparation method for the portland cement that solidification duration is controllable, belong to building materials technology field, including following preparation step: preparing stone raw material, broken, mixing, homogenizing, grinding, stirring, preheating and decomposition, the firing of clinker, decompose rapidly, condensation, harden requirement.Preparation principle of the present invention is clear, methodological science, compared with prior art, the present invention matches the portland cement of preparation, at low cost, intensity is high, wearability is good, it can be used for road surface and ground surface works, and the affinity good, fast solidifying of portland cement of which production, early strength and later strength are high, suitable for having a 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 invention belongs to building materials technology fields, are related to a kind of preparation method of portland cement, solidifying more particularly to one kind
Gu the preparation method of the controllable portland cement of duration.
Background technique
Cement: powdery hydraulicity inorganic coagulation material.At slurry after adding water and stirring, can harden in air or in water
Preferably hardening, and can the materials such as sand, stone are 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 cementitious material, be widely used in civil construction, water conservancy,
The engineerings such as national defence.Cement is divided by purposes and performance: general-purpose cement, cement special and characteristic cement three categories.It is all with calcium silicates
Based on Portland clinker, 5% lime stone or granulated blast-furnace slag below, hydraulicity glue made of proper amount of gypsum is levigate
Gel material is referred to as portland cement.Portland cement divides two types, and be not spiked with mixing material is known as I type silicate cement
Mud；Add the lime stone or granulated blast-furnace slag mixing material for being no more than cement quality 5% is known as II type portland cement.Silicon
The essential mineral composition of acid salt cement is: tricalcium silicate, dicalcium silicate, tricalcium aluminate, tetra calcium aluminoferrite.Tricalcium silicate decides
Intensity in four week of portland cement；Ability Developed fiber strength acts on after four week of dicalcium silicate；Tricalcium aluminate intensity play compared with
Fastly, but intensity is low；The intensity of tetra calcium aluminoferrite plays also very fast.In existing technology of preparing, the solidification duration of cement cannot be controlled
System, and intensity is lower, if the problem of encountering bad weather in process of setting, will result in waste material, thus it is proposed that one
Kind portland cement and preparation method.
Summary of the invention
The present invention is directed to the deficiencies in the prior art, proposes a kind of preparation of portland cement that solidification duration is controllable
Method can solve above-mentioned deficiency in the prior art, reduce the generation of waste material, save processing cost, further satisfaction stream
Waterline production procedure requirement, production efficiency can be greatly improved.
A kind of technical solution of the present invention: preparation method for the portland cement that solidification duration is controllable, which is characterized in that packet
Include following operating procedure:
(1) prepare stone raw material；
(2) select crushing plant that stone raw material is crushed to tiny, uniform granularity；
(3) land plaster, zeolite powder are mixed into pulverulent mixture, and it is matched are as follows: land plaster 3%, zeolite powder 7.5%；
(4) it in raw material during depositing, withdrawing, with the heap feeding technology of science, realizes the preliminary homogenisation of raw material, makes material storage yard
It is provided simultaneously with the function of storage and homogenizing；
(5) calcareous raw material, clayey raw material and partial correction raw material are mixed, and carries out grinding using grinding device；
(6) air stirring is used, when dropping raw meal powder downwards, multilayer charge level is cut as far as possible, is sufficiently mixed；
(7) raw material are heated using the waste gas residual heat that rotary kiln and dore furnace are discharged, decomposes raw material preheating and part thereof；
(8) firing of clinker is entered in rotary kiln and is carried out after raw material complete preheating and predecomposition in cyclone preheater
The firing of clinker, carbonate further decomposes rapidly and occurs a series of solid phase reaction in rotary kiln, and it is ripe to generate cement
The mineral such as C3A, C4AF, C2S in material；
(9) cement grog grinding to suitable granularity is formed certain grain composition by cement grinding, increases its water accessible area,
Acceleration of hydration speed meets cement slurry condensation, hardening requires.
The invention has the benefit that a kind of preparation side of portland cement that solidification duration is controllable proposed by the present invention
Method, preparation principle is clear, methodological science, and compared with prior art, the present invention matches the portland cement of preparation, at low cost, strong
Degree is high, and wearability is good, can be used for road surface and ground surface works, and the portland cement of which production is affinity good, solidifying
Knot hardening is fast, and early strength and later strength are high, suitable for having the concrete of early strong demand, winter construction concrete, on the ground,
The high-strength concrete and prestressed concrete engineering of lower important feature.
Specific embodiment
Below with reference to embodiment, the invention will be further described:
A kind of preparation method for the portland cement that solidification duration is controllable, including following operating procedure:
(1) prepare stone raw material；
(2) select crushing plant that stone raw material is crushed to tiny, uniform granularity；
(3) land plaster, zeolite powder are mixed into pulverulent mixture, and it is matched are as follows: land plaster 3%, zeolite powder 7.5%；
(4) it in raw material during depositing, withdrawing, with the heap feeding technology of science, realizes the preliminary homogenisation of raw material, makes material storage yard
It is provided simultaneously with the function of storage and homogenizing；
(5) calcareous raw material, clayey raw material and partial correction raw material are mixed, and carries out grinding using grinding device；
(6) air stirring is used, when dropping raw meal powder downwards, multilayer charge level is cut as far as possible, is sufficiently mixed；
(7) raw material are heated using the waste gas residual heat that rotary kiln and dore furnace are discharged, decomposes raw material preheating and part thereof；
(8) firing of clinker is entered in rotary kiln and is carried out after raw material complete preheating and predecomposition in cyclone preheater
The firing of clinker, carbonate further decomposes rapidly and occurs a series of solid phase reaction in rotary kiln, and it is ripe to generate cement
The mineral such as C3A, C4AF, C2S in material；
(9) cement grog grinding to suitable granularity is formed certain grain composition by cement grinding, increases its water accessible area,
Acceleration of hydration speed meets cement slurry condensation, hardening requires.
Claims (1)
1. a kind of preparation method for the portland cement that solidification duration is controllable, which is characterized in that including following operating procedure:
(1) prepare stone raw material；
(2) select crushing plant that stone raw material is crushed to tiny, uniform granularity；
(3) land plaster, zeolite powder are mixed into pulverulent mixture, and it is matched are as follows: land plaster 3%, zeolite powder 7.5%；
(4) it in raw material during depositing, withdrawing, with the heap feeding technology of science, realizes the preliminary homogenisation of raw material, makes material storage yard
It is provided simultaneously with the function of storage and homogenizing；
(5) calcareous raw material, clayey raw material and partial correction raw material are mixed, and carries out grinding using grinding device；
(6) air stirring is used, when dropping raw meal powder downwards, multilayer charge level is cut as far as possible, is sufficiently mixed；
(7) raw material are heated using the waste gas residual heat that rotary kiln and dore furnace are discharged, decomposes raw material preheating and part thereof；
(8) firing of clinker is entered in rotary kiln and is carried out after raw material complete preheating and predecomposition in cyclone preheater
The firing of clinker, carbonate further decomposes rapidly and occurs a series of solid phase reaction in rotary kiln, and it is ripe to generate cement
The mineral such as C3A, C4AF, C2S in material；
(9) cement grog grinding to suitable granularity is formed certain grain composition by cement grinding, increases its water accessible area,
Acceleration of hydration speed meets cement slurry condensation, hardening requires.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810393770.5A CN110407487A (en) | 2018-04-27 | 2018-04-27 | A kind of preparation method for the portland cement that solidification duration is controllable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810393770.5A CN110407487A (en) | 2018-04-27 | 2018-04-27 | A kind of preparation method for the portland cement that solidification duration is controllable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110407487A true CN110407487A (en) | 2019-11-05 |
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ID=68346815
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810393770.5A Pending CN110407487A (en) | 2018-04-27 | 2018-04-27 | A kind of preparation method for the portland cement that solidification duration is controllable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110407487A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111439433A (en) * | 2020-04-03 | 2020-07-24 | 吴秋敏 | Cement production method |
| CN114106710A (en) * | 2021-11-12 | 2022-03-01 | 宁晋晶兴电子材料有限公司 | Silicon rod splicing process, inorganic cementing material for silicon rod splicing and cutting method |
-
2018
- 2018-04-27 CN CN201810393770.5A patent/CN110407487A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111439433A (en) * | 2020-04-03 | 2020-07-24 | 吴秋敏 | Cement production method |
| CN114106710A (en) * | 2021-11-12 | 2022-03-01 | 宁晋晶兴电子材料有限公司 | Silicon rod splicing process, inorganic cementing material for silicon rod splicing and cutting method |
| CN114106710B (en) * | 2021-11-12 | 2024-02-02 | 包头晶澳太阳能科技有限公司 | Silicon rod splicing process, inorganic cementing material for silicon rod splicing and cutting method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20191105 |
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| WD01 | Invention patent application deemed withdrawn after publication |