CN101698577B - Cement clinker produced by using various industrial waste residues - Google Patents
Cement clinker produced by using various industrial waste residues Download PDFInfo
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- CN101698577B CN101698577B CN2009101175731A CN200910117573A CN101698577B CN 101698577 B CN101698577 B CN 101698577B CN 2009101175731 A CN2009101175731 A CN 2009101175731A CN 200910117573 A CN200910117573 A CN 200910117573A CN 101698577 B CN101698577 B CN 101698577B
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- slag
- cement clinker
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- clinker
- waste residues
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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
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- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention relates to cement clinker produced by using various industrial waste residues, which is characterized in that: metal magnesium reducing slag, lime mud or calcium carbide mud or dicyandiamide slag, mountain flour, fly ash or coal gangue and sulfur acid residue are compounded and optimally mixed to produce a raw material; and the raw material is calcined by a calcining process to produce the cement clinker. The cement clinker is characterized in that: various industrial waste residues are comprehensively used to produce the cement clinker, a large amount of waste residues are used, a large amount of natural resources and energy is saved, and standard coal consumption is saved by more than 20 percent in the calcining process of the waste residues which are compounded and optimally mixed, the emission of CO2 and other harmful gases in a large amount is reduced at the same time, the calcining speed of the clinker is increased, and the energy-saving, emission-reducing, consumption-reducing and environmental-protection effects are obvious; and experiments prove that single-machine output and production efficiency are improved and that after 28 days, the pressure strength ofthe clinker is improved by more than 5MPa compared with that of the clinker produced by the traditional method.
Description
Technical field
The invention belongs to building material technical field, particularly relate to a kind of cement clinker that utilizes multiple industrial residue to produce.
Background technology
It is the raw material calcining of preparing burden that the traditional cement grog adopts the natural Mineral resources such as Wingdale, clay, silica sand, iron ore, gypsum, fluorite, coal and the energy, has not only wasted a large amount of natural resource and the energy, and has discharged a large amount of CO
2And other obnoxious flavour, contaminate environment is serious.At present; Had and utilized magnesium metal reduction slag or industrial residues such as calcium carbide mud or dicyandiamide dreg to substitute the technology that batchings such as part or all of Wingdale and clay, iron ore are processed the raw material calcination of cement clinker separately; But be limited by the fluctuation of material chemical component and the restriction of cement clinker controlling of production process parameter; Its waste residue utilization amount is little, quality is single, energy-conservation, reduce discharging, consumption reduction do not reach best effect as yet, it is bigger to apply difficulty.
Summary of the invention
The object of the invention just is to overcome the defective of above-mentioned prior art, and a kind of cement clinker of widely applying industrial residue to produce is provided.
The present invention realizes through following technical proposals:
A kind of cement clinker that utilizes multiple industrial residue to produce; It is characterized in that this cement clinker uses stone flour, magnesium metal reduction slag, lime slag or calcium carbide mud or dicyandiamide dreg; Flyash or coal gangue reach and adopt the calcining process calcining to form after sulfate slag composite optimization batching is processed raw material;
Described calcining process is the novel dry-process rotary kiln calcining process, and its raw material composition is counted with weight proportion:
Stone flour 40～80%,
Magnesium metal reduction slag 5～25%,
Lime slag or calcium carbide mud or dicyandiamide dreg 5～30%,
Flyash 2～10%,
Sulfate slag 0.5～3%;
Described calcining process is a shaft kiln calcination technology, and its raw material composition is counted with weight proportion:
Stone flour 20～70%,
Magnesium metal reduction slag 5～40%,
Lime slag or calcium carbide mud or dicyandiamide dreg 5～30%,
Coal gangue 1～10%,
Sulfate slag 1～3%,
Fluorite 0.8～1.2%,
Hard coal 6～10%;
Described stone flour is native crack soil and the limestone fines mixture that sieves out with limestone crushing of mountain skin that the limestone mine exploitation is peeled off.
The present invention fully utilizes multiple industrial residue producing cement grog; The waste residue utilization amount is big; Can practice thrift a large amount of natural resource and the energy, and waste residue through composite optimization batching back in the burning clinker of cement process saving standard coal consumption reduce a large amount of CO simultaneously more than 20%
2And other discharge of harmful gases, clinker burning speeds up, and is energy-conservation, reduce discharging, and consumption reduction, environment protecting is obvious, experiment showed, that single machine yield and production efficiency improve, and 28 days compressive strength rate traditional modes of production of grog clinker strength improves more than the 5MPa.
Embodiment
According to various industrial residue chemical ingredientss, optimize compounding ingredient according to rational rate value, MgO content is less than below 5% in the control grog.The main raw material chemical analysis is following:
The main raw material chemical component table
| Title | Loss | SiO 2 | AI 2O 3 | Fe 2O 3 | CaO | MgO | Add up to | Remarks |
| Stone flour | 39.32 | 6.25 | 1.67 | 2.06 | 48.02 | 2.38 | 99.70 | No. 1 |
| Stone flour | 38.26 | 7.43 | 1.95 | 2.16 | 46.75 | 3.04 | 99.59 | No. 2 |
| Stone flour | 37.82 | 9.37 | 2.07 | 2.32 | 44.68 | 2.89 | 99.15 | No. 3 |
| Magnesium reduction slag | 0.36 | 33.24 | 1.45 | 5.98 | 54.04 | 6.57 | 101.28 | Dried slag |
| Magnesium reduction slag | 9.69 | 29.88 | 1.35 | 3.75 | 48.35 | 7.42 | 100.45 | Wet deslagging |
| Calcium carbide mud | 27.72 | 2.71 | 1.21 | 0.81 | 66.40 | 0.98 | 99.83 | No. 1 |
| Calcium carbide mud | 27.56 | 4.42 | 2.16 | 0.48 | 65.22 | 0.12 | 99.96 | No. 2 |
| The lime slag | 14.88 | 17.89 | 9.57 | 1.61 | 54.96 | 0.84 | 99.75 | No. 1 |
| The lime slag | 15.82 | 14.62 | 8.75 | 1.57 | 57.68 | 1.09 | 99.53 | No. 2 |
| Dicyandiamide dreg | 41.40 | 8.31 | 2.09 | 0.95 | 44.71 | 0.12 | 97.58 | No. 1 |
| Dicyandiamide dreg | 35.00 | 22.60 | 2.40 | 1.57 | 37.61 | 0.30 | 99.48 | No. 2 |
| Flyash | 5.50 | 51.26 | 21.89 | 9.17 | 9.33 | 2.79 | 99.94 | No. 1 |
| Flyash | 3.10 | 52.96 | 33.39 | 5.72 | 3.91 | 0.91 | 99.99 | No. 2 |
| Sulfate slag | 4.44 | 30.57 | 6.51 | 52.75 | 1.99 | 3.13 | 99.39 | No. 1 |
| Sulfate slag | 12.93 | 16.36 | 2.77 | 48.97 | 6.61 | 3.97 | 91.61 | No. 2 |
Embodiment 1
Produce cement clinker with the novel dry-process rotary kiln calcining process, technical process is: feed proportioning → raw grinding → clinker burning
Raw material adopts limestone mine depleted stone flour; The magnesium reduction slag of MAGNESIUM METAL 99 factory discharging; The lime slag of lime factory discharging; The calcium carbide mud of PVC production plant discharging natural air drying, the natural air drying dicyandiamide sludge as material of Dyhard RU 100 production plant discharging, the flyash of power plant emission, the sulfate slag of chemical plant emission.
Common meal proportioning (weight percent) is: stone flour (No. 2) 42.79%, magnesium metal reduction slag (dried slag) 17.7%, calcium carbide mud (No. 1) 30.00%; Flyash (No. 1) 8.51, sulfate slag (No. 1) 1.00%, raw material three ratio KH=0.98; N=2.27, p=1.09, grog KH=0.88; N=2.20, p=1.30.
Instance 2
Common meal proportioning (weight percent) is: stone flour (No. 2) 40.00%, magnesium metal reduction slag (dried slag) 15.00%, calcium carbide mud (No. 1) 23.82%; Flyash (No. 1) 5.05%, dicyandiamide dreg (No. 2) 15.43%, sulfate slag (No. 1) 0.70%; Raw material three ratio KH=1.00, n=2.40, p=1.19; Grog KH=0.89, n=2.40, p=1.40.
Instance 3
With shaft kiln calcination explained hereafter cement clinker, technical process is: feed proportioning → raw grinding → raw material balling-up → clinker burning
Raw material adopts limestone mine depleted stone flour; The magnesium reduction slag of MAGNESIUM METAL 99 factory discharging; The lime slag of lime factory discharging; The calcium carbide mud of PVC production plant discharging natural air drying, the natural air drying dicyandiamide sludge as material of Dyhard RU 100 production plant discharging, the coal gangue of washery discharging, the sulfate slag of chemical plant emission.
Raw-meal ingredient (weight percent) is: stone flour (No. 1) 28.7%, magnesium metal reduction slag (dried slag) 23.0%, calcium carbide mud (No. 2) 22.0%; Sulfate slag (No. 2) 1.2%, lime slag (No. 2) 13.0%, coal gangue 2.8%; Fluorite 1.0%, hard coal 7.3%, raw material calorific value 2657KJ/Kg; Raw material three ratio KH=0.96, n=2.19, p=1.40.
Instance 4
Raw-meal ingredient (weight percent) is: stone flour (No. 1) 46.23%, magnesium metal reduction slag (dried slag) 23.78%, dicyandiamide dreg (No. 1) 10.0%; Sulfate slag (No. 2) 2.86%, lime slag (No. 1) 6.80%, coal gangue 2.50%; Fluorite 0.8%, hard coal 7.03%, raw material calorific value 2621KJ/Kg; Raw material three ratio KH=1.00, n=2.03, p=1.33.
Instance 5
Raw-meal ingredient (weight percent) is: stone flour (No. 3) 21.24%, magnesium metal reduction slag (dried slag) 36.73%, calcium carbide mud (No. 1) 16.00%; Sulfate slag (No. 2) 1.00%, lime slag (No. 2) 16.0%, coal gangue 1.00%; Fluorite 1.00%, hard coal 7.21%, raw material calorific value 2604KJ/Kg; Raw material three ratio KH=0.94, n=2.02, p=1.54.
Cement clinker meets the standard-required of general cement clinker in the GB/T21372-2008 Portland clinker fully through checking each item index.
Claims (2)
1. cement clinker that utilizes multiple industrial residue to produce; It is characterized in that this cement clinker uses stone flour; The magnesium metal reduction slag, lime slag or calcium carbide mud or dicyandiamide dreg, flyash; Reach and adopt the calcining of dry-process rotary kiln calcining process to form after sulfate slag composite optimization batching is processed raw material, its raw material composition is counted with weight proportion:
Stone flour 40～80%,
Magnesium metal reduction slag 5～25%,
Lime slag or calcium carbide mud or dicyandiamide dreg 5～30%,
Flyash 2～10%,
Sulfate slag 0.5～3%.
2. cement clinker that utilizes multiple industrial residue to produce; It is characterized in that this cement clinker uses stone flour; The magnesium metal reduction slag, lime slag or calcium carbide mud or dicyandiamide dreg, coal gangue; Reach and adopt the calcining of shaft kiln calcination technology to form after sulfate slag composite optimization batching is processed raw material, its raw material composition is counted with weight proportion:
Stone flour 20～70%,
Magnesium metal reduction slag 5～40%,
Lime slag or calcium carbide mud or dicyandiamide dreg 5～30%,
Coal gangue 1～10%,
Sulfate slag 1～3%,
Fluorite 0.8～1.2%,
Hard coal 6～10%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2009101175731A CN101698577B (en) | 2009-11-10 | 2009-11-10 | Cement clinker produced by using various industrial waste residues |
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| CN2009101175731A CN101698577B (en) | 2009-11-10 | 2009-11-10 | Cement clinker produced by using various industrial waste residues |
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| CN101698577A CN101698577A (en) | 2010-04-28 |
| CN101698577B true CN101698577B (en) | 2012-06-27 |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102173606B (en) * | 2011-01-12 | 2012-10-03 | 缪建通 | Method for calcining cement clinker on cement kiln using waste residue instead of limestone material |
| CN103011639A (en) * | 2012-12-13 | 2013-04-03 | 凤阳中都水泥有限公司 | Process for producing cement by using limestone mine stripping soil |
| CN103304168B (en) * | 2013-06-27 | 2014-12-03 | 宁夏平罗恒达水泥有限责任公司 | Method for producing cement clinker by using dry-process predecomposition kiln |
| CN104211311A (en) * | 2014-09-11 | 2014-12-17 | 山西中条山新型建材有限公司 | Method for producing silicate cement by taking foundry waste sand as siliceous correcting raw material |
| CN104211310A (en) * | 2014-09-11 | 2014-12-17 | 山西中条山新型建材有限公司 | Raw material formula for replacing part of limestone and magnesium slag by using stone powder |
| CN106892580A (en) * | 2017-02-22 | 2017-06-27 | 谢松甫 | The clinker configured using mine, trade waste |
| CN109081615B (en) * | 2018-07-11 | 2021-02-09 | 盐城工学院 | Road portland cement clinker based on industrial waste residues and preparation method thereof |
| CN116444218A (en) * | 2023-05-04 | 2023-07-18 | 华侨大学 | Full-recycled concrete and preparation method and application thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1101017A (en) * | 1993-09-29 | 1995-04-05 | 山东矿业学院 | Coal-stone mixed cement |
| CN1400188A (en) * | 2001-12-24 | 2003-03-05 | 四川省德阳市汉旺船头水泥有限公司 | Compound portland cement produced by utilizing industrial waste slag |
-
2009
- 2009-11-10 CN CN2009101175731A patent/CN101698577B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1101017A (en) * | 1993-09-29 | 1995-04-05 | 山东矿业学院 | Coal-stone mixed cement |
| CN1400188A (en) * | 2001-12-24 | 2003-03-05 | 四川省德阳市汉旺船头水泥有限公司 | Compound portland cement produced by utilizing industrial waste slag |
Non-Patent Citations (2)
| Title |
|---|
| 吴铭生 等.工业废弃物生产水泥的工业性试验.《水泥工程》.2008,(第2期),第81-82页. * |
| 樊磊 等.水泥熟料生产可综合利用的工业废弃物概述.《内蒙古石油化工》.2009,(第07期),第90页. * |
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