CN105439482A - Cement production method - Google Patents
Cement production method Download PDFInfo
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- CN105439482A CN105439482A CN201510787769.7A CN201510787769A CN105439482A CN 105439482 A CN105439482 A CN 105439482A CN 201510787769 A CN201510787769 A CN 201510787769A CN 105439482 A CN105439482 A CN 105439482A
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- China
- Prior art keywords
- cement
- drying
- production
- grinding
- screening
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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
- C04B7/36—Manufacture of hydraulic cements in general
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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
-
- 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
- C04B7/40—Dehydrating; Forming, e.g. granulating
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- 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
- Y02P40/121—Energy efficiency measures, e.g. improving or optimising the production methods
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses a cement production method and relates to the technical field of cement production. The method comprises the following steps: (I) breaking the raw materials for cement production into a coarse-particle material and screening with a screening machine; breaking the screened large-diameter material again to obtain a fine-particle material; (II) uniformly mixing the fine-particle material with slag and drying the mixture with a dryer, wherein the drying temperature is 115-155 DEG C, and the drying time is 10-30 minutes; (III) adding the mixture dried in the step (II) into lime powder and then grinding in a grinding apparatus, wherein a cement grinding aid is added during the grinding, and the grinding time is 20-40 minutes; and (IV) screening the ground cement with the screening machine to screen out large particles in the cement, and packaging the qualified cement. The method disclosed by the invention has the following beneficial effects: the production is fast, and the time is saved; the product quality is improved, and the quality is high; and the cost is saved while the energy is reasonably utilized.
Description
Technical field
The present invention relates to technical field of cement production, be specifically related to a kind of method for production of cement.
Background technology
Cement is powdery hydraulicity inorganic coagulation material.Add water after stirring and become slurry, can harden in atmosphere or better harden in water, and can the material such as sand, stone is cemented together securely.Cement mono-word is developed by Latin caementum, is the meaning of rubble and slabstone.Early stage lime is very similar to modern lime pozzolanic cement to pozzuolanic mixture, and the concrete made with its cementing rubble, after sclerosis, not only intensity is higher, and can also resist the erosion of fresh water or brackish water.For a long time, it, as a kind of important gelling material, is widely used in the engineerings such as civil construction, water conservancy, national defence.
Cement is divided into by purposes and performance:
(1), general-purpose cement: the cement that general civil construction project adopts usually.General-purpose cement mainly refers to: the six large class cement that GB175-2007 specify, i.e. silicate cement, ordinary Portland cement, Portland blast furnace slag cement, Portland pozzolana cement, Portland fly ash cement and composite Portland cement.
(2), cement special: the cement of special purpose.As: G level oil well cement, road silicate cement.
(3), characteristic cement: the cement that certain Performance comparision is outstanding.As: quick hardening Portland cement, low heat portland blast-furnace-slag cement, expansion aluminosulfate cement, phosphor aluminate cement and phosphate cement.
Cement is divided into by its main hydraulicity material title:
(1), silicate cement, the i.e. external portland cement be generally called;
(2), aluminate cement;
(3), aluminosulfate cement;
(4), ferro-aluminate cement;
(5), fluoroaluminate cement;
(6), phosphate cement;
(7), with the cement that volcanic ash or latent hydraulicity material and other active materials are main ingredient.
Cement is divided into by main technical characteristics:
(1), soon rigid (hydraulicity): be divided into fast hard and hard two classes of express train;
(2), hydration heat: be divided into middle heat and low-heat two class;
(3), sulfate resistance: in point, anti-sulphates corrosive and high sulfate resisting corrode two classes;
(4), swelling property: be divided into expansion and seif-citing rate two class;
(5), high thermal resistance: the high thermal resistance of aluminate cement is with alumina content classification in cement.
The production technique of portland-type cement is representative in manufacture of cement, for main raw material with Wingdale and clay, through broken, batching, levigately make raw material, then feed mature calcined material in cement kiln, then grog is added proper amount of gypsum (sometimes going back admixture mixing material or admixture) is levigate to be formed.
Manufacture of cement is different with method for preparing raw material, can be divided into dry method (comprising semidrying) and wet method (comprising semi-wet method) two kinds.
1. dry production: raw material to be dried simultaneously and grinding, or first dry and become through grinding the method feeding mature calcined material in dry method kiln after raw meal powder.But also have and raw meal powder is added suitable quantity of water make raw material ball, send into the method for mature calcined material in lepol kiln, be referred to as semidrying, still belong to the one of dry production.
2. wet production: after the grinding that added water by raw material becomes charge pulp, the method for feeding wet-process rotary kiln mature calcined material.Also have after the charge pulp of wet-layer preparation is dewatered, make the method that raw material block enters kiln mature calcined material, be called semi-wet method, still belong to the one of wet production.
The major advantage of dry production be hear rate low (as with the dry method kiln heat consumption of clinker of preheater be 3140 ~ 3768 burnt/kilogram), shortcoming is that raw ingredients is not easily even, and workshop airborne dust is large, and power consumption is higher.The advantages such as wet production has simple to operate, and raw ingredients easily controls, good product quality, and slurry pipeline transport is convenient, and workshop airborne dust is few, shortcoming is hear rate high (heat consumption of clinker be generally 5234 ~ 6490 burnt/kilogram).
Existing cement is slow in production hourly velocity, and of poor quality, and inconvenient during use, lose time, efficiency is low, consumes energy high.
Summary of the invention
The object of the invention is to the defect for prior art and deficiency, a kind of method for production of cement is provided.
In order to solve the problem existing for background technology, a kind of method for production of cement of the present invention, its method is:
Step one: the raw material producing cement is carried out fragmentation formation coarseparticulate material and sieved by sieve apparatus; By screening after large diameter material again fragmentation obtain fine granular materials;
Step 2: fine granular materials is mixed with slag ash, and adopted by mixture drying machine to carry out drying, its drying temperature is 115-155 DEG C, and time of drying is 10-30 minute;
Step 3: step 2 dry mixture material is added lime powder, then enters milling equipment and carries out abrasive material; Add cement grinding aid during abrasive material, the abrasive material time is 20-40 minute;
Step 4: sieved through sieve apparatus by the cement of abrasive material, by the macrobead screening in cement, its qualified cement is packed.
As preferably, described slag ash is by being cleaned by slag ash, and adopt drying machine drying, its drying time is 10-20 minute, then carries out fine grinding by shredder, finally uses 100 to 130 eye mesh screens screenings to form.
As preferably, described lime powder adopts lime block, plaster block carries out pulverizing, mixing, and the lime powder obtained after mixing uses 130 to 150 eye mesh screens screenings to form.
As preferably, described cement grinding aid is Sodium sulfate anhydrous.min(99), Industrial Salt, flyash, trolamine, polymerized polyalcohol, polyalcohol amine, tri-isopropanolamine.
Beneficial effect of the present invention is:
One, production rate is fast, saves time;
Two, improve the quality of product, quality is high;
Three, save cost, reasonably make use of the energy;
Four, production method is simple.
Embodiment
This embodiment adopts following technical scheme: its method is:
Step one: the raw material producing cement is carried out fragmentation formation coarseparticulate material and sieved by sieve apparatus; By screening after large diameter material again fragmentation obtain fine granular materials;
Step 2: fine granular materials is mixed with slag ash, and adopted by mixture drying machine to carry out drying, its drying temperature is 115-155 DEG C, and time of drying is 10-30 minute;
Step 3: step 2 dry mixture material is added lime powder, then enters milling equipment and carries out abrasive material; Add cement grinding aid during abrasive material, the abrasive material time is 20-40 minute;
Step 4: sieved through sieve apparatus by the cement of abrasive material, by the macrobead screening in cement, its qualified cement is packed.
Further, described slag ash is by being cleaned by slag ash, and adopt drying machine drying, its drying time is 10-20 minute, then carries out fine grinding by shredder, finally uses 100 to 130 eye mesh screen screenings to form.
Further, described lime powder adopts lime block, plaster block carries out pulverizing, mixing, and the lime powder obtained after mixing uses 130 to 150 eye mesh screen screenings to form.
Further, described cement grinding aid is Sodium sulfate anhydrous.min(99), Industrial Salt, flyash, trolamine, polymerized polyalcohol, polyalcohol amine, tri-isopropanolamine.
This embodiment has following beneficial effect:
One, production rate is fast, saves time;
Two, improve the quality of product, quality is high;
Three, save cost, reasonably make use of the energy;
Four, production method is simple.
The above, only in order to technical scheme of the present invention to be described and unrestricted, other amendment that those of ordinary skill in the art make technical scheme of the present invention or equivalently to replace, only otherwise depart from the spirit and scope of technical solution of the present invention, all should be encompassed in the middle of right of the present invention.
Claims (4)
1. a method for production of cement, is characterized in that: its method is:
Step one: the raw material producing cement is carried out fragmentation formation coarseparticulate material and sieved by sieve apparatus; By screening after large diameter material again fragmentation obtain fine granular materials;
Step 2: fine granular materials is mixed with slag ash, and adopted by mixture drying machine to carry out drying, its drying temperature is 115-155 DEG C, and time of drying is 10-30 minute;
Step 3: step 2 dry mixture material is added lime powder, then enters milling equipment and carries out abrasive material; Add cement grinding aid during abrasive material, the abrasive material time is 20-40 minute;
Step 4: sieved through sieve apparatus by the cement of abrasive material, by the macrobead screening in cement, its qualified cement is packed.
2. a kind of method for production of cement according to claim 1, it is characterized in that: described slag ash is by being cleaned by slag ash, adopt drying machine drying, its drying time is 10-20 minute, carry out fine grinding by shredder again, finally use 100 to 130 eye mesh screen screenings to form.
3. a kind of method for production of cement according to claim 1, is characterized in that: described lime powder adopts lime block, plaster block carries out pulverizing, mixing, and the lime powder obtained after mixing uses 130 to 150 eye mesh screen screenings to form.
4. a kind of method for production of cement according to claim 1, is characterized in that: described cement grinding aid is Sodium sulfate anhydrous.min(99), Industrial Salt, flyash, trolamine, polymerized polyalcohol, polyalcohol amine, tri-isopropanolamine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510787769.7A CN105439482A (en) | 2015-11-17 | 2015-11-17 | Cement production method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510787769.7A CN105439482A (en) | 2015-11-17 | 2015-11-17 | Cement production method |
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| CN105439482A true CN105439482A (en) | 2016-03-30 |
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| CN201510787769.7A Pending CN105439482A (en) | 2015-11-17 | 2015-11-17 | Cement production method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107098611A (en) * | 2017-05-26 | 2017-08-29 | 东台市建东机械制造有限公司 | A kind of cement cooling device for building |
| CN108069680A (en) * | 2016-11-15 | 2018-05-25 | 江苏瑞凌新能源科技有限公司 | A kind of high intensity ash concrete |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1047880A (en) * | 1990-06-01 | 1990-12-19 | 同济大学 | Compound water-proof building material and production method thereof |
| CN1477072A (en) * | 2002-08-20 | 2004-02-25 | 赵洪义 | Production method of high-strength cement |
| CN101717207A (en) * | 2009-11-04 | 2010-06-02 | 上海寰保渣业处置有限公司 | Solidification material prepared from incineration residue material as well as production method and application thereof |
| CN101811838A (en) * | 2010-04-16 | 2010-08-25 | 四川川恒化工股份有限公司 | Cement production method |
| CN102101757A (en) * | 2009-12-18 | 2011-06-22 | 王明贵 | Industrial waste slag-doped composite silicate cement and production method thereof |
| CN104058616A (en) * | 2014-06-11 | 2014-09-24 | 成都科力夫科技有限公司 | Cement production method |
| CN104844029A (en) * | 2015-05-07 | 2015-08-19 | 张芳 | Cement production method by adding lignosulfonate |
| CN104844028A (en) * | 2015-05-07 | 2015-08-19 | 张芳 | Cement production method by adding naphthalene sulfonate water reducer |
-
2015
- 2015-11-17 CN CN201510787769.7A patent/CN105439482A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1047880A (en) * | 1990-06-01 | 1990-12-19 | 同济大学 | Compound water-proof building material and production method thereof |
| CN1477072A (en) * | 2002-08-20 | 2004-02-25 | 赵洪义 | Production method of high-strength cement |
| CN101717207A (en) * | 2009-11-04 | 2010-06-02 | 上海寰保渣业处置有限公司 | Solidification material prepared from incineration residue material as well as production method and application thereof |
| CN102101757A (en) * | 2009-12-18 | 2011-06-22 | 王明贵 | Industrial waste slag-doped composite silicate cement and production method thereof |
| CN101811838A (en) * | 2010-04-16 | 2010-08-25 | 四川川恒化工股份有限公司 | Cement production method |
| CN104058616A (en) * | 2014-06-11 | 2014-09-24 | 成都科力夫科技有限公司 | Cement production method |
| CN104844029A (en) * | 2015-05-07 | 2015-08-19 | 张芳 | Cement production method by adding lignosulfonate |
| CN104844028A (en) * | 2015-05-07 | 2015-08-19 | 张芳 | Cement production method by adding naphthalene sulfonate water reducer |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108069680A (en) * | 2016-11-15 | 2018-05-25 | 江苏瑞凌新能源科技有限公司 | A kind of high intensity ash concrete |
| CN107098611A (en) * | 2017-05-26 | 2017-08-29 | 东台市建东机械制造有限公司 | A kind of cement cooling device for building |
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Application publication date: 20160330 |
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