CN1254690A - Process for increasing output and quality of cement - Google Patents

Process for increasing output and quality of cement Download PDF

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Publication number
CN1254690A
CN1254690A CN98122742A CN98122742A CN1254690A CN 1254690 A CN1254690 A CN 1254690A CN 98122742 A CN98122742 A CN 98122742A CN 98122742 A CN98122742 A CN 98122742A CN 1254690 A CN1254690 A CN 1254690A
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CN
China
Prior art keywords
cement
slag
raw
optimum combination
clay
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Pending
Application number
CN98122742A
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Chinese (zh)
Inventor
曾宪春
赵雪扬
Original Assignee
曾宪春
赵雪扬
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 曾宪春, 赵雪扬 filed Critical 曾宪春
Priority to CN98122742A priority Critical patent/CN1254690A/en
Publication of CN1254690A publication Critical patent/CN1254690A/en
Pending legal-status Critical Current

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Classifications

    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B7/00Hydraulic cements
    • C04B7/24Cements from oil shales, residues or waste other than slag
    • C04B7/243Mixtures thereof with activators or composition-correcting additives, e.g. mixtures of fly ash and alkali activators
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B7/00Hydraulic cements
    • C04B7/14Cements containing slag
    • C04B7/147Metallurgical slag
    • C04B7/153Mixtures thereof with other inorganic cementitious materials or other activators
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P40/00Technologies relating to the processing of minerals
    • Y02P40/10Production of cement, e.g. improving or optimising the production methods; Cement grinding

Abstract

A method for increasing the output and qulaity of cement includes such areas as selecting raw materials, optimized combination of selected raw materials, heating to prepare high-activity reinforcing material, adding activating and exciting material, and mixing with clinke (0-50%). Its advantages are less or no use of clinker, less consumption of coal and high effect.

Description

Improve cement output and method for quality
The present invention relates to a kind of reaching raw material is activated, intensifies the method for heating and handling with technology about the raw materials used selection of production cement, optimum combination.
Produce 32.5-52.5 cement clinker volume at present about 50-85%, the consumption coal is many, the cost height, and economic benefit is bad.Manufacture of cement generally is that grog KH is controlled at 0.84-0.93 now, and below the fCao2%, this prescription KH is on the low side, and the high strength CaS content of generation is not high enough, still has potential strength not bring into play.
The objective of the invention is to study a kind of reduction grog volume, utilize multiple industrial residue, optimum combination is turned waste into wealth and raw material is activated, intensifies, and the processing of heating improves cement output and quality, increases the method for economic benefit.
Purpose of the present invention can be realized by following proposal:
A. can have for the raw material and the industrial residue of optimum combination: carbide slag, copper ashes, aluminium slag, bauxitic clay, slag, flyash, coal gangue, sulfate slag, zeolite, slag, clay, lime mud, Wingdale, gypsum etc.
B. can have as cement activation, the material that intensifies: saltcake, alkaline residue, fluorgypsum, yellow soda ash, urea, salt, trolamine, xylogen, Sodium Nitrite etc.
One, according to the Chemical Composition of raw material and industrial residue, the above material of each the 2-3 kind in the above-mentioned a of optimum combination, the b binomial mixes with the grog of 0-50%, and common grinding tails over 3-8% to 0.08mm and can produce 32.5-52.5 cement.Specifically select materials and formulation Example be listed as follows:
Sequence number Grog Slag Wingdale Gypsum Carbide slag Slag Phosphorus slag The aluminium slag Flyash Zeolite Fluorgypsum Alkaline residue Yellow soda ash Saltcake Cement mark MPa
??1 ??13 ??50 ??10 ??15 ??- ??10 ?- ?- ?- ?- ?- ??2 ?- ?- ????32.5
??2 ??0 ??60 ??17 ??16 ??- ??- ?- ?4 ?- ?- ?- ??2 ?- ?1 ????32.5
??3 ??50 ??- ??5 ??4 ??15 ??7.5 ?- ?15 ?- ?- ?- ??2 ?1.5 ?- ????42.5
??4 ??32 ??16 ??10 ??8 ??12 ??8 ?- ?10 ?- ?- ?- ??2 ?- ?2 ????32.5
??5 ??40 ??- ??5 ??5 ??10 ??10 ?8 ?15 ?- ?- ?5 ??- ??2 ?- ????42.5
??6 ??42 ??- ??- ??4 ??- ??12 ?10 ?- ?15 ?12 ?- ??2 ??1 ?2 ????42.5
Two, utilize material among a more than 4 kinds, heating 750-1000 ℃ is fired into highly active cement strongthener A, tails over 5-8% with conventional cement clinker grinding to 0.08mm with the grog of 2-3 kind material replacement 30-50% among cement strongthener A and the b and produces 32.5-52.5 cement.The formulation Example of specifically selecting materials such as following table:
Sequence number Grog Bauxitic clay Copper ashes Lime mud Inferior sour nitre sodium Sulfate slag Xylogen Coal gangue Gypsum Sodium-chlor Saltcake Trolamine ???A Cement mark MPa
????1 ??40 ??- ??- ??2 ??- ??- ?9.98 ??1 ??2 ??- ?0.02 ??45 ????42.5
????2 ??30 ??- ??6 ??- ??- ??10 ??- ???- ??2 ??- ??2 ??- ??50 ????42.5
????3 ??20 ??- ??8 ??12 ??- ??10 ??- ???- ??3 ??2 ??- ??- ??45 ????32.5
????4 ??50 ?8.92 ??- ??- ??- ?0.05 ???- ??- ??1 ??- ?0.03 ??40 ????52.5
????5 ??45 ??- ??10 ??- ??8 ??- ???- ??2 ??- ??2 ??- ??33 ????52.5
The preparation of cement strongthener A: the material in the optimum combination a item, for example get coal gangue 35%, flyash 15%, zeolite 10%, bauxitic clay 15%, gypsum 15%, clay 10% and allocate raw grinding by a certain percentage into and after 0.08mm tails over about 15%, in pan-pelletizer, add the pellet that water 13-15% makes 10-15mm, be calcined to 750-1000 ℃ in the shaft kiln to get final product; The calorific value of above-mentioned coal gangue will be about 1500 calories.
If fire with rotary kiln, can be without balling-up, the optimum combination material is gone into the raw mill grinding promptly enter rotary kiln to fineness about 15% and burn to 750-1000 ℃.
Advantage of the present invention is: use no or little grog, utilize multiple industrial residue, turn waste into wealth, the consumption coal is few, the cement output height, and quality is good, economizes on coal, and has increased the economic benefit of manufacture of cement; Improve grog KH to 0.9-0.97, C 3The S growing amount is many, the intensity height; Relax fCao to 5%, though harmful soundness of cement, present technique is used hydrated cementitious, activates and intensifies technology, and optimum combination industrial residue cheap and easy to get absorbs high fCao to be cleared up, be converted into aquation C-S-H and C-A-H gelling mineral substance, and make strength of cement regeneration.And by multiple industrial residue is heated, make the low activity material be converted into the cement strongthener of high reactivity high added value, can replace the grog more than 30%.Therefore use the grog that present technique is only used 0-50%, can produce the present 32.5-52.5 cement (MPa) that could produce with the grog of 50-85%.
Present technique need not be invested and reforming equipment substantially, it is good to be applicable to that shaft kiln, rotary kiln and grinding station reach soundness of cement, label is high and stablize, improve KH, relax the output that fCao helps improving kiln again, save coal consumption, utilize the waste residue activation to become precious, save the grog volume, cement per ton can obtain overall economic efficiency 30-60 unit.

Claims (2)

1. improve cement output and method for quality relate to a kind of about producing the raw materials used selection of cement, optimum combination and to the raw material art treatment that activates, intensifies and heat,
A. can have for the raw material and the industrial residue of optimum combination: carbide slag, copper ashes, aluminium slag, bauxitic clay, slag, flyash, coal gangue, sulfate slag, zeolite, slag, clay, lime mud, Wingdale, gypsum etc.;
B. can have as cement activation, the material that intensifies: saltcake, alkaline residue, fluorgypsum, yellow soda ash, urea, salt, trolamine, xylogen, Sodium Nitrite etc.;
According to the Chemical Composition of raw material and industrial residue, the above material of each the 2-3 kind in the above-mentioned a of optimum combination, the b binomial mixes with the grog of 0-50%, and common grinding tails over 3-8% to 0.08mm and gets final product.
2. improve cement output and method for quality relate to a kind of about producing the raw materials used selection of cement, optimum combination and to the raw material art treatment that activates, intensifies and heat,
A. can have for the raw material and the industrial residue of optimum combination: carbide slag, copper ashes, aluminium slag, bauxitic clay, slag, flyash, coal gangue, sulfate slag, zeolite, slag, clay, lime mud, Wingdale, gypsum etc.;
B. can have as cement activation, the material that intensifies: saltcake, alkaline residue, fluorgypsum, yellow soda ash, urea, salt, trolamine, xylogen, Sodium Nitrite etc.
Utilize material among a more than 4 kinds, heating 750-1000 ℃ is fired into highly active cement strongthener A, tails over 5-8% with conventional cement clinker grinding to 0.08mm with the grog of 2-3 kind material replacement 30-50% among cement strongthener A and the b and produces 32.5-52.5 cement;
The preparation of cement strongthener A: the material in the optimum combination a item, for example get coal gangue 35%, flyash 15%, zeolite 10%, bauxitic clay 15%, gypsum 15%, clay 10% and allocate raw grinding by a certain percentage into and after 0.08mm tails over about 15%, in pan-pelletizer, add the pellet that water 13-15% makes 10-15mm, be calcined to 750-1000 ℃ in the shaft kiln to get final product; The calorific value of above-mentioned coal gangue will be about 1500 calories; If fire with rotary kiln, can be without balling-up, the optimum combination material is gone into the raw mill grinding promptly enter rotary kiln to fineness about 15% and burn to 750-1000 ℃.
CN98122742A 1998-11-23 1998-11-23 Process for increasing output and quality of cement Pending CN1254690A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN98122742A CN1254690A (en) 1998-11-23 1998-11-23 Process for increasing output and quality of cement

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN98122742A CN1254690A (en) 1998-11-23 1998-11-23 Process for increasing output and quality of cement

Publications (1)

Publication Number Publication Date
CN1254690A true CN1254690A (en) 2000-05-31

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN98122742A Pending CN1254690A (en) 1998-11-23 1998-11-23 Process for increasing output and quality of cement

Country Status (1)

Country Link
CN (1) CN1254690A (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102092969A (en) * 2010-12-21 2011-06-15 新疆天山水泥股份有限公司 Special concrete clinker without limerock burdening and production method of special concrete clinker
CN101549964B (en) * 2009-04-24 2012-11-28 广东工业大学 Low-calcium silicate cement produced by using granite powder and preparation method thereof
CN101475330B (en) * 2009-01-22 2013-03-06 中国建筑材料科学研究总院 Composite high-early strength blending material for unballasted track plate and use thereof
CN103121801A (en) * 2012-12-18 2013-05-29 金延宇 Method for calcining low-alkali high-grade clinker by reutilizing cement kiln harmful gas
CN103466969A (en) * 2013-08-29 2013-12-25 遵义市节能监测技术服务中心 Formula of portland cement
CN104496222A (en) * 2014-12-11 2015-04-08 同济大学 Method for manufacturing controllable low-strength material from carbide slag, steel slag and coal gangue
CN104529199A (en) * 2015-01-12 2015-04-22 扬中市大地水泥有限公司 Inorganic cement reinforcing agent
CN105217977A (en) * 2015-09-16 2016-01-06 邱如新 alkali slag cement
CN105314902A (en) * 2015-11-25 2016-02-10 天津水泥工业设计研究院有限公司 Method for calcining belite sulphoaluminate cement clinker by totally utilizing industrial waste residues
CN106277870A (en) * 2016-08-25 2017-01-04 北海金匠水泥制品有限责任公司 A kind of clinker formula having good stability

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101475330B (en) * 2009-01-22 2013-03-06 中国建筑材料科学研究总院 Composite high-early strength blending material for unballasted track plate and use thereof
CN101549964B (en) * 2009-04-24 2012-11-28 广东工业大学 Low-calcium silicate cement produced by using granite powder and preparation method thereof
CN102092969B (en) * 2010-12-21 2014-04-23 新疆天山水泥股份有限公司 Special concrete clinker without limerock burdening and production method of special concrete clinker
CN102092969A (en) * 2010-12-21 2011-06-15 新疆天山水泥股份有限公司 Special concrete clinker without limerock burdening and production method of special concrete clinker
CN103121801A (en) * 2012-12-18 2013-05-29 金延宇 Method for calcining low-alkali high-grade clinker by reutilizing cement kiln harmful gas
CN103121801B (en) * 2012-12-18 2015-03-04 青海辰戊有害气体利用有限公司 Method for calcining low-alkali high-grade clinker by reutilizing cement kiln harmful gas
CN103466969A (en) * 2013-08-29 2013-12-25 遵义市节能监测技术服务中心 Formula of portland cement
CN104496222A (en) * 2014-12-11 2015-04-08 同济大学 Method for manufacturing controllable low-strength material from carbide slag, steel slag and coal gangue
CN104496222B (en) * 2014-12-11 2016-08-17 同济大学 The method manufacturing controllability low-intensity material with carbide slag, slag and gangue
CN104529199A (en) * 2015-01-12 2015-04-22 扬中市大地水泥有限公司 Inorganic cement reinforcing agent
CN105217977A (en) * 2015-09-16 2016-01-06 邱如新 alkali slag cement
CN105314902A (en) * 2015-11-25 2016-02-10 天津水泥工业设计研究院有限公司 Method for calcining belite sulphoaluminate cement clinker by totally utilizing industrial waste residues
CN106277870A (en) * 2016-08-25 2017-01-04 北海金匠水泥制品有限责任公司 A kind of clinker formula having good stability

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