CN101050070A - Method for producing Portland cement - Google Patents

Method for producing Portland cement Download PDF

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Publication number
CN101050070A
CN101050070A CNA2007100141071A CN200710014107A CN101050070A CN 101050070 A CN101050070 A CN 101050070A CN A2007100141071 A CNA2007100141071 A CN A2007100141071A CN 200710014107 A CN200710014107 A CN 200710014107A CN 101050070 A CN101050070 A CN 101050070A
Authority
CN
China
Prior art keywords
slag
portland cement
cement
steel slag
sandstone
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.)
Pending
Application number
CNA2007100141071A
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Chinese (zh)
Inventor
孙建成
刘希海
王国庆
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
JINLUCHENG CO Ltd SHANDONG
Original Assignee
JINLUCHENG CO Ltd SHANDONG
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 JINLUCHENG CO Ltd SHANDONG filed Critical JINLUCHENG CO Ltd SHANDONG
Priority to CNA2007100141071A priority Critical patent/CN101050070A/en
Publication of CN101050070A publication Critical patent/CN101050070A/en
Pending legal-status Critical Current

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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

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  • Curing Cements, Concrete, And Artificial Stone (AREA)

Abstract

This invention discloses a method for producing Portland cement. The raw materials of the Portland cement comprise steel slag 4-5.5%. The cement clinker is produced with a new dry-method production line, and comprises: limestone 76.6 wt.%, clay 14.1 wt.%, sandstone 4.3 wt.%, and steel slag 5 wt.%. The method can save coal resources, and can utilize waste steel slag.

Description

A kind of method for producing Portland cement
Technical field
The present invention relates to cement, be specially a kind of method for producing Portland cement.
Background technology
Producing at present generally needs in the employed prescription of ordinary Portland cement to add a certain proportion of iron powder, and following table is a common prescription:
The name of an article Wingdale Clay Sandstone Iron powder Slag
Former scheme 82.7 11.4 4.1 1.8 0
Do not see that also the waste steel slag that uses steel mill to dump replaces iron powder and other raw materials of part to produce the report of Portland clinker on new type dry kiln.
Summary of the invention
The objective of the invention is to replace iron powder in the cement clinker raw material, to reach utilization of waste material, energy-conservation, the purpose that reduces production costs by the waste steel slag that uses steel mill to dump.
The present invention implements like this: a kind of production method of silicate cement, contain the slag of 4%-5.5% in its raw mix formula; Calcination of chamotte on new type nonaqueous cement production line.
More specifically, cement slurry formulation weight per-cent is: Wingdale 76.6, clay 14.1, sandstone 4.3, slag 5.
Employed slag composition sees the following form:
Moisture content loss SiO 2 Al 2O 3 Fe 2O 3 CaO MgO ∑
4.00 1.56 16.15 9.68 16.18 45.31 7.55 96.43
Adopt above-mentioned design, the excellent effect that obtains is as follows:
1, raw ingredients is basicly stable, and slag can replace iron powder to use as ferriferous raw material.
2, use the grog composition of slag and original composition to be consistent, can satisfy the requirement of grog composition.
3, the variation of grog free ca is not obvious, adds 5% slag free ca and descends 0.08%.
4,, add 5% slag scheme and improve 1Mpa from 3 days intensity of grog.
5, add slag and reduced carbonate decomposition amount in the decomposing furnace, the corresponding reduction of tail coal consumption has tangible effect of coal saving, and slag falls coal 4kg/t grog for iron powder.
6, increased the consumption of industrial residue, calculated the original industrial residue 3% that consumes more by complete substituting.
Embodiment
Cement clinker composition of raw materials weight percent is: Wingdale 76.6, clay 14.1, sandstone 4.3, slag 5.
Adopt above-mentioned prescription to produce cement clinker and regular convention formula comparative result:
Its raw ingredients relatively sees the following form:
Scheme Loss SiO 2 Al 2O 3 Fe 2O 3 CaO MgO ∑ kh n p
Slag 0% 35.7 11.96 2.61 2 2.08 3 43.44 1.428 97.15 1.145 2.58 1.32
Slag 5% 33.9 12.24 2.70 3 1.95 8 43.43 5 1.428 95.81 1.242 2.63 1.38
Its grog composition comparative result sees the following form:
Scheme Loss SiO 2 Al 2O 3 Fe 2O 3 CaO MgO SO 3 F-CaO
Slag 0% 0.64 21.94 4.78 3.35 65.03 2.25 0.64 2.12
Slag 5% 0.64 22.54 4.80 3.46 64.19 2.37 0.57 2.10
Scheme KH KH’ N P C 3S C 2S C 3A C 4AF 3d (Mpa)
Slag 0% 0.912 0.869 2.703 1.423 50.42 24.84 7.00 10.21 29.90
Slag 5% 0.894 0.854 2.634 1.402 46.95 27.43 7.07 10.45 29.56

Claims (2)

1. the production method of a silicate cement is characterized in that containing in the raw mix formula slag of 4%-6%, calcination of chamotte on new type nonaqueous cement production line.
2. the production method of a kind of silicate cement as claimed in claim 1 is characterized in that its grog composition of raw materials weight percent is: Wingdale 76.6, clay 14.1, sandstone 4.3, slag 5.
CNA2007100141071A 2007-03-30 2007-03-30 Method for producing Portland cement Pending CN101050070A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNA2007100141071A CN101050070A (en) 2007-03-30 2007-03-30 Method for producing Portland cement

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNA2007100141071A CN101050070A (en) 2007-03-30 2007-03-30 Method for producing Portland cement

Publications (1)

Publication Number Publication Date
CN101050070A true CN101050070A (en) 2007-10-10

Family

ID=38781702

Family Applications (1)

Application Number Title Priority Date Filing Date
CNA2007100141071A Pending CN101050070A (en) 2007-03-30 2007-03-30 Method for producing Portland cement

Country Status (1)

Country Link
CN (1) CN101050070A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101585670B (en) * 2009-06-25 2011-10-05 中国华冶科工集团有限公司 High-strength cement clinker and method for producing the same
CN101607797B (en) * 2009-07-30 2011-12-07 北京金隅红树林环保技术有限责任公司 Method for producing low alkali cement by using high alkali raw materials
CN103601379A (en) * 2013-11-15 2014-02-26 武汉理工大学 Phase-separated clinker calcination process for outside-thrown high-calcium granulated slag
CN104496228A (en) * 2014-12-30 2015-04-08 中国建筑材料科学研究总院 Road silicate cement clinker and preparation method thereof
CN110228956A (en) * 2019-05-29 2019-09-13 潞城市卓越水泥有限公司 A kind of Portland clinker of high compressive strength and preparation method thereof

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101585670B (en) * 2009-06-25 2011-10-05 中国华冶科工集团有限公司 High-strength cement clinker and method for producing the same
CN101607797B (en) * 2009-07-30 2011-12-07 北京金隅红树林环保技术有限责任公司 Method for producing low alkali cement by using high alkali raw materials
CN103601379A (en) * 2013-11-15 2014-02-26 武汉理工大学 Phase-separated clinker calcination process for outside-thrown high-calcium granulated slag
CN103601379B (en) * 2013-11-15 2015-09-30 武汉理工大学 A kind of outer high calcium slag sand of throwing calcines phase-splitting grog technique
CN104496228A (en) * 2014-12-30 2015-04-08 中国建筑材料科学研究总院 Road silicate cement clinker and preparation method thereof
CN110228956A (en) * 2019-05-29 2019-09-13 潞城市卓越水泥有限公司 A kind of Portland clinker of high compressive strength and preparation method thereof
CN110228956B (en) * 2019-05-29 2022-02-22 山西卓越水泥有限公司 Portland cement clinker with high compressive strength and preparation method thereof

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