CN108164167A - A kind of preparation method of portland cement - Google Patents
A kind of preparation method of portland cement Download PDFInfo
- Publication number
- CN108164167A CN108164167A CN201711435118.7A CN201711435118A CN108164167A CN 108164167 A CN108164167 A CN 108164167A CN 201711435118 A CN201711435118 A CN 201711435118A CN 108164167 A CN108164167 A CN 108164167A
- Authority
- CN
- China
- Prior art keywords
- parts
- clinker
- portland cement
- preparation
- gypsum
- Prior art date
- 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
-
- 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
- C04B7/02—Portland cement
- C04B7/06—Portland cement using alkaline raw 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
-
- 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
- C04B7/424—Oxides, Hydroxides
Abstract
The present invention relates to building material technical fields, and in particular to a kind of preparation method of portland cement.Include the following steps：Lime stone, clay and gypsum are crushed；Additive will be added in broken mixture, be then fed into grinder and grind, raw material are made；Raw material are put into calcining, are cooled down, clinker is made；Clinker with gypsum is mixed, adds in coagulant and water-reducing agent, portland cement is made in grinding.The present invention improves the intensity of the early strength of cement, particularly three hour or four hours by adding in coagulant and water-reducing agent.Shorten the demoulding time of cement, improve architecture production efficiency.In clinker suitable alkalinity is brought by adding in sodium hydroxide, accelerate the early hydration speed of clinker, further improve the early strength of cement, a small amount of iron ion is brought by adding in iron oxide in clinker, so that clinker burning temperature is relatively low, the heat consumption during clinker burning is reduced.
Description
Technical field
The present invention relates to building material technical fields, and in particular to a kind of preparation method of portland cement.
Background technology
Cement is powdery hydraulicity inorganic coagulation material.Add water stir after into slurry, can in air harden or in water
In preferably harden, and can the materials such as sand, stone are cemented together securely.
The mixture of early stage lime and volcanic ash and modern lime pozzolanic cement are much like, are made of its cementing rubble
Concrete, 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 one
The important cementitious material of kind, is widely used in the engineerings such as civil construction, water conservancy, national defence.
Portland cement is a kind of important construction material, the early strength of cement it is higher, more contribute to shorten demoulding
Time improves production efficiency.
Invention content
The mesh of the present invention is, for problems of the prior art, proposes a kind of preparation method of portland cement,
Improve the early strength of cement.
To achieve these goals, the technical solution adopted by the present invention is：
A kind of preparation method of portland cement, includes the following steps：
It is crushed Step 1: lime stone, clay and gypsum are added in crusher；
Step 2: by additive is added in broken mixture, it is then fed into grinder and grinds, raw material are made；
It calcines, cools down Step 3: raw material are put into rotary kiln, Portland clinker is made；
Step 4: Portland clinker is mixed with gypsum, coagulant and water-reducing agent are added in, is put into grinder and grinds, made
Obtain portland cement.
The portland cement includes the ingredient of following parts by weight：
Portland clinker：85-95 parts；
Gypsum：4-8 parts；
Coagulant：1-2 parts；
Water-reducing agent：2-3 parts.
The Portland clinker includes the ingredient of following parts by weight：
Lime stone：50-60 parts；
Clay：20-30 parts；
Gypsum：10-15 parts；
Additive：2-5 parts；
The additive is sodium hydroxide.
Further, the Portland clinker includes the ingredient of following parts by weight：
Lime stone：55 parts；
Clay：25 parts；
Gypsum：12 parts；
Additive：4 parts；
The additive is sodium hydroxide.
Further, the additive further includes iron oxide.
Further, the weight ratio of the sodium hydroxide and iron oxide is 5：1.
The temperature of the calcining is 900-1400 DEG C.
The time of the calcining is 50-100min.
By adopting the above-described technical solution, the beneficial effects of the invention are as follows：
The present invention improves the strong of the early strength of cement, particularly three hour or four hours by adding in coagulant and water-reducing agent
Degree shortens the demoulding time of cement, improves architecture production efficiency.In clinker by add in sodium hydroxide bring into it is suitable
Alkalinity accelerates the early hydration speed of clinker, the early strength of cement is further improved, by being added in clinker
Iron oxide brings a small amount of iron ion into so that clinker burning temperature is relatively low, reduces the heat consumption during clinker burning.
Specific embodiment
The present invention is described in detail below.
Purpose, technical scheme and advantage to make the embodiment of the present invention are clearer, below will be in the embodiment of the present invention
Technical solution be clearly and completely described, it is clear that described embodiment be part of the embodiment of the present invention rather than
Whole embodiments.
Therefore, the detailed description of the embodiment of the present invention presented below is not intended to limit claimed invention
Range, but it is merely representative of the selected embodiment of the present invention.Based on the embodiments of the present invention, those of ordinary skill in the art exist
All other embodiments obtained under the premise of creative work are not made, shall fall within the protection scope of the present invention.
In the description of the present invention, it is also necessary to which explanation is unless specifically defined or limited otherwise, term " setting ",
" installation ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected or integrally connect
It connects；Can be mechanical connection or electrical connection；It can be directly connected, can also be indirectly connected by intermediary, it can
To be the connection inside two elements.For the ordinary skill in the art, can above-mentioned term be understood with concrete condition
Concrete meaning in the present invention.
Embodiment 1
As a kind of preferred embodiment of the present invention, present embodiment discloses a kind of preparation method of portland cement, this implementations
Example includes：
A kind of preparation method of portland cement, includes the following steps：
It is crushed Step 1: lime stone, clay and gypsum are added in crusher；
Step 2: by additive is added in broken mixture, it is then fed into grinder and grinds, raw material are made；
It calcines, cools down Step 3: raw material are put into rotary kiln, Portland clinker is made；
Step 4: Portland clinker is mixed with gypsum, coagulant and water-reducing agent are added in, is put into grinder and grinds, made
Obtain portland cement.
The portland cement includes the ingredient of following parts by weight：
Portland clinker：85 parts；
Gypsum：4 parts；
Coagulant：1 part；
Water-reducing agent：2 parts.
The Portland clinker includes the ingredient of following parts by weight：
Lime stone：50 parts；
Clay：20 parts；
Gypsum：10 parts；
Additive：2 parts；
The additive is sodium hydroxide.
The additive further includes iron oxide.
The weight ratio of the sodium hydroxide and iron oxide is 5：1.
The temperature of the calcining is 900 DEG C.
The time of the calcining is 50min.
Embodiment 2
As a kind of preferred embodiment of the present invention, present embodiment discloses a kind of preparation method of portland cement, this implementations
Example includes：
A kind of preparation method of portland cement, includes the following steps：
It is crushed Step 1: lime stone, clay and gypsum are added in crusher；
Step 2: by additive is added in broken mixture, it is then fed into grinder and grinds, raw material are made；
It calcines, cools down Step 3: raw material are put into rotary kiln, Portland clinker is made；
Step 4: Portland clinker is mixed with gypsum, coagulant and water-reducing agent are added in, is put into grinder and grinds, made
Obtain portland cement.
The portland cement includes the ingredient of following parts by weight：
Portland clinker：90 parts；
Gypsum：6 parts；
Coagulant：1 part；
Water-reducing agent：2 parts.
The Portland clinker includes the ingredient of following parts by weight：
Lime stone：55 parts；
Clay：25 parts；
Gypsum：12 parts；
Additive：4 parts；
The additive is sodium hydroxide.
The additive further includes iron oxide.
The weight ratio of the sodium hydroxide and iron oxide is 5：1.
The temperature of the calcining is 1200 DEG C.
The time of the calcining is 80min.
Embodiment 3
As a kind of preferred embodiment of the present invention, present embodiment discloses a kind of preparation method of portland cement, this implementations
Example includes：
A kind of preparation method of portland cement, includes the following steps：
It is crushed Step 1: lime stone, clay and gypsum are added in crusher；
Step 2: by additive is added in broken mixture, it is then fed into grinder and grinds, raw material are made；
It calcines, cools down Step 3: raw material are put into rotary kiln, Portland clinker is made；
Step 4: Portland clinker is mixed with gypsum, coagulant and water-reducing agent are added in, is put into grinder and grinds, made
Obtain portland cement.
The portland cement includes the ingredient of following parts by weight：
Portland clinker：95 parts；
Gypsum：8 parts；
Coagulant：2 parts；
Water-reducing agent：3 parts.
The Portland clinker includes the ingredient of following parts by weight：
Lime stone：60 parts；
Clay：30 parts；
Gypsum：15 parts；
Additive：5 parts；
The additive is sodium hydroxide.
Further, the additive further includes iron oxide.
Further, the weight ratio of the sodium hydroxide and iron oxide is 5：1.
The temperature of the calcining is 1400 DEG C.
The time of the calcining is 100min.
Embodiment 4
As a kind of preferred embodiment of the present invention, present embodiment discloses a kind of preparation method of portland cement, this implementations
Example includes：
A kind of preparation method of portland cement, includes the following steps：
It is crushed Step 1: lime stone, clay and gypsum are added in crusher；
Step 2: by additive is added in broken mixture, it is then fed into grinder and grinds, raw material are made；
It calcines, cools down Step 3: raw material are put into rotary kiln, Portland clinker is made；
Step 4: Portland clinker is mixed with gypsum, coagulant and water-reducing agent are added in, is put into grinder and grinds, made
Obtain portland cement.
Claims (8)
1. a kind of preparation method of portland cement, which is characterized in that include the following steps：
It is crushed Step 1: lime stone, clay and gypsum are added in crusher；
Step 2: by additive is added in broken mixture, it is then fed into grinder and grinds, raw material are made；
It calcines, cools down Step 3: raw material are put into rotary kiln, Portland clinker is made；
Step 4: Portland clinker is mixed with gypsum, coagulant and water-reducing agent are added in, is put into grinder and grinds, made
Obtain portland cement.
2. the preparation method of portland cement according to claim 1, which is characterized in that the portland cement is included such as
The ingredient of lower parts by weight：
Portland clinker：85-95 parts；
Gypsum：4-8 parts；
Coagulant：1-2 parts；
Water-reducing agent：2-3 parts.
3. the preparation method of portland cement according to claim 2, which is characterized in that the Portland clinker packet
Include the ingredient of following parts by weight：
Lime stone：50-60 parts；
Clay：20-30 parts；
Gypsum：10-15 parts；
Additive：2-5 parts；
The additive is sodium hydroxide.
4. the preparation method of portland cement according to claim 2, which is characterized in that the Portland clinker packet
Include the ingredient of following parts by weight：
Lime stone：55 parts；
Clay：25 parts；
Gypsum：12 parts；
Additive：4 parts；
The additive is sodium hydroxide.
5. the preparation method of portland cement according to claim 3 or 4, it is characterised in that：The additive further includes
Iron oxide.
6. the preparation method of portland cement according to claim 5, it is characterised in that：The sodium hydroxide and iron oxide
Weight ratio be 5：1.
7. the preparation method of portland cement according to claim 1, it is characterised in that：The temperature of the calcining is 900-
1400℃。
8. the preparation method of portland cement according to claim 1, it is characterised in that：The time of the calcining is 50-
100min。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711435118.7A CN108164167A (en) | 2017-12-26 | 2017-12-26 | A kind of preparation method of portland cement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711435118.7A CN108164167A (en) | 2017-12-26 | 2017-12-26 | A kind of preparation method of portland cement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108164167A true CN108164167A (en) | 2018-06-15 |
Family
ID=62521560
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711435118.7A Withdrawn CN108164167A (en) | 2017-12-26 | 2017-12-26 | A kind of preparation method of portland cement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108164167A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112225474A (en) * | 2020-10-21 | 2021-01-15 | 西藏昌都高争建材股份有限公司 | Novel cement production process |
| CN113788633A (en) * | 2021-10-22 | 2021-12-14 | 石家庄市曲寨水泥有限公司 | Production method and application of high-strength cement |
-
2017
- 2017-12-26 CN CN201711435118.7A patent/CN108164167A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112225474A (en) * | 2020-10-21 | 2021-01-15 | 西藏昌都高争建材股份有限公司 | Novel cement production process |
| CN113788633A (en) * | 2021-10-22 | 2021-12-14 | 石家庄市曲寨水泥有限公司 | Production method and application of high-strength cement |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180615 |
|
| WW01 | Invention patent application withdrawn after publication |