CN109020275A - The method that slag is introduced raw meal proportioning production clinker as raw material and crystal seed - Google Patents
The method that slag is introduced raw meal proportioning production clinker as raw material and crystal seed Download PDFInfo
- Publication number
- CN109020275A CN109020275A CN201810759349.1A CN201810759349A CN109020275A CN 109020275 A CN109020275 A CN 109020275A CN 201810759349 A CN201810759349 A CN 201810759349A CN 109020275 A CN109020275 A CN 109020275A
- Authority
- CN
- China
- Prior art keywords
- clinker
- slag
- cement
- raw material
- production
- 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
- C04B7/36—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
-
- 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
- C04B7/14—Cements containing slag
- C04B7/147—Metallurgical slag
-
- 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
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- 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 kind of using slag as raw material, partly or entirely substitution aluminum correction material or siliceous correction material, in production as the independent cement clinker production technology Jing Guo metered raw meal proportioning process of one of component, the burn-ability and sintering range of raw material are improved using the mineralising performance and induction crystal property of slag, accelerate solid state reaction process of the clinker in kiln, reach and greatly improves and improve cement clinker quality, improve kiln yield, reduce the purpose of clinker preparation heat consumption and power consumption, in being more favorable to, the production of the special cements clinker such as low-heat cement clinker, be conducive to cement production enterprise cost efficiency.The application of invention can preferably be burnt to high silicate-rate, high saturation ratio clinker, can preferably improve clinker strength, improve clinker mineral composition and performance, and the production for being conducive to low-heat cement in cement plant is prepared.
Description
Technical field
The invention belongs to building materials field cement clinker production technology methods, and in particular to draw using slag as raw material and crystal seed
Enter the method for raw meal proportioning production clinker.
Background technique
In cement production process although slag is widely used in cement production process at present, but mainly using it as
What one of cement raw material was applied in cement grinding preparation process, it is former usually as active mixed material and clinker, gypsum etc.
Material list is solely or combined grinding is made cement and is applied, and the effect of slag is sent out during hydrated cementitious forms concrete
It waves.This application has certain quality requirement (requirement that such as quality requirement reaches cement quality rule of management) to slag.
This application does not have any effect to the production of clinker and quality improvement.
Summary of the invention
The present invention is applied in the raw grinding preparation of clinker production process using slag as one of raw material raw material, leads to
It crosses together with other raw materials and enters kiln by high-temperature calcination solid state reaction kinetics clinker, using the mineralising performance of slag and induction
Crystal property improves the burn-ability and sintering range of raw material, accelerates solid state reaction process of the clinker in kiln, reaches
Improve and improve cement clinker quality, improve kiln yield, reduce clinker preparation heat consumption and power consumption purpose, be more favorable in,
The production of the special cements clinker such as low-heat cement clinker, is conducive to cement production enterprise cost efficiency.The present invention has widened answering for slag
With range, the typically up to slag less than " for the granulated blast-furnace slag in cement " GB/T203-2008 standard technique index request
It can be used, and this technology applied to obtain the raising of clinker strength, be more advantageous to slag incorporation in the preparation of later period cement
It further increases, establishes solid foundation for the reduction of cement production enterprise production cost.
Specific technical solution of the present invention is as follows:
The method that slag is introduced raw meal proportioning production clinker as raw material and crystal seed, which is characterized in that
Using slag as raw material, the mode of aluminum correction material or siliceous correction material is partly or entirely substituted, in raw meal proportioning
In the process as one of component individually by metered.
It may further be preferable that when the slag is steel plant's blast furnace process pig iron or steel, it is resulting with alumino-silicate
Melting waste residues as main component, the Granulated slag formed after quenching granulating.
It may further be preferable that the incorporation of the slag is 1.5%~25%.
The invention has the benefit that
Invention using slag as one of raw material raw material be applied to clinker production process raw grinding preparation in, by with its
His raw material enters kiln by high-temperature calcination solid state reaction kinetics clinker, using the mineralising performance and induction crystallinity of slag together
The burn-ability and sintering range of raw material can be improved, accelerates solid state reaction process of the clinker in kiln, reaches and substantially mention
It is high and improve cement clinker quality, improve kiln yield, reduce the purpose of clinker preparation heat consumption and power consumption, be more favorable in, it is low
The production of the special cements clinker such as hot cement clinker, is conducive to cement production enterprise cost efficiency.The present invention has widened the application of slag
Range is more advantageous to the extensive use of slag.The application of invention can preferably be burnt to high silicate-rate, high saturation ratio clinker, can
Preferably to improve clinker strength, clinker mineral composition and performance is improved, the production for being conducive to low-heat cement in cement plant is prepared.
Specific embodiment
During the raw meal proportioning of general portland cement clinker, the raw material used is mainly lime stone, sandstone (siliceous correction
Material), clay (aluminum correction material), iron ore (irony correction material).
Technical process in application process of the present invention is, first the raw meal proportioning station in existing clinker production process
It vacates or increases an ingredient library to lay in slag, it is in process of production that the slag individually stored is defeated as one of proportion material
It send to the ingredient library, the difference then formed according to the chemical component of slag, and the requirement of fired clinker moduli, with part
Or the mode of replacing whole aluminum correction material or siliceous correction material, it is individually passed through during raw meal proportioning as one of component
Cross it is metered, generally according to material composition and ingredient needs, incorporation between 1.5%~25%, then with other cooperation
Raw material is delivered to raw grinding system intergrinding, drying by the comprehensive belt of raw meal proportioning together, is milled into qualified raw meal powder,
Being sent into raw material homogenizing silo storage through raw material finished product collection (gathering dust) and transportation system, (the raw material moisture content produced in this approach should be stringent
Control is below 1.5%), then be sent into precalciner kiln preheater through raw material homogenizing silo bottom storehouse transportation system and decompose stove heating, then
Clinker (or send enter kiln calcining cooling to shaft kiln balling-up system clinker is made) is made through rotary kiln high-temperature calcination and grate-cooler are cooling
Process.
The incorporation general control of slag is within 25% in the present invention, and incorporation is higher in incorporation range herein, raw material
Burn-ability is better, and the range of clinker three ratio selection is wider, suggests the main incorporation of slag in production process according to knowhow
Range is preferable with 3%-15%.
Using mineralization of the invention, it can also suitably relax raw grinding fineness in process of production, it generally can be with
Than relaxing 2% or so before being not used, to improve raw mill yield, power consumption is reduced without influencing sinter leaching quality.
With the application of the invention, answering strict control raw material moisture content of finished products in production, it is proposed that less than 1.0% control, in case agglomeration is made
At blocking.
Embodiment
In cement slurry formula, 5% slag, the slag composition of incorporation such as table 1 are mixed；
1 slag composition of table
After mixing 5% slag in raw mix formula, the clinker indices of production such as table 2；
Table 2 mixes clinker indices after 5% slag
After mixing 25% slag in raw mix formula, the clinker indices of production such as table 3;
Table 3 mixes clinker indices after 25% slag
After slag is introduced raw meal proportioning production as raw material and crystal seed, the indices of clinker are improved, meanwhile,
Clinker standard coal consumption reduces, and has preferable implementation result.
Claims (3)
1. the method that slag introduces raw meal proportioning production clinker as raw material and crystal seed, which is characterized in that
Using slag as raw material, partly or entirely substitutes aluminum correction material or siliceous correction material carries out the mode of ingredient,
It is used as one of component individually by metered during raw meal proportioning.
2. the method that slag is introduced raw meal proportioning production clinker as raw material and crystal seed as described in claim 1,
It is characterized in that, the slag is resulting with alumino-silicate melting as main component when being steel plant's blast furnace process pig iron or steel
Waste residue, the Granulated slag formed after quenching granulating.
3. the method that slag is introduced raw meal proportioning production clinker as raw material and crystal seed as claimed in claim 1 or 2,
It is characterized in that, the incorporation of the slag is 1.5%~25%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810759349.1A CN109020275A (en) | 2018-07-11 | 2018-07-11 | The method that slag is introduced raw meal proportioning production clinker as raw material and crystal seed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810759349.1A CN109020275A (en) | 2018-07-11 | 2018-07-11 | The method that slag is introduced raw meal proportioning production clinker as raw material and crystal seed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109020275A true CN109020275A (en) | 2018-12-18 |
Family
ID=64641600
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810759349.1A Pending CN109020275A (en) | 2018-07-11 | 2018-07-11 | The method that slag is introduced raw meal proportioning production clinker as raw material and crystal seed |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109020275A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103435281A (en) * | 2013-08-15 | 2013-12-11 | 威顿水泥集团有限责任公司 | Cement clinker and preparation process thereof |
-
2018
- 2018-07-11 CN CN201810759349.1A patent/CN109020275A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103435281A (en) * | 2013-08-15 | 2013-12-11 | 威顿水泥集团有限责任公司 | Cement clinker and preparation process thereof |
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| Date | Code | Title | Description |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181218 |