[go: up one dir, main page]

WO2008138172A1 - Ciment à trois composants fabriqué à partir de scories d'acier et son procédé de production - Google Patents

Ciment à trois composants fabriqué à partir de scories d'acier et son procédé de production Download PDF

Info

Publication number
WO2008138172A1
WO2008138172A1 PCT/CN2007/001559 CN2007001559W WO2008138172A1 WO 2008138172 A1 WO2008138172 A1 WO 2008138172A1 CN 2007001559 W CN2007001559 W CN 2007001559W WO 2008138172 A1 WO2008138172 A1 WO 2008138172A1
Authority
WO
WIPO (PCT)
Prior art keywords
steel slag
cement
auxiliary material
slag
clinker
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.)
Ceased
Application number
PCT/CN2007/001559
Other languages
English (en)
Chinese (zh)
Inventor
Jianwei Wang
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to PCT/CN2007/001559 priority Critical patent/WO2008138172A1/fr
Publication of WO2008138172A1 publication Critical patent/WO2008138172A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • C04B7/14—Cements containing slag
    • C04B7/147—Metallurgical slag
    • 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
    • C04B7/153—Mixtures thereof with other inorganic cementitious materials or other activators
    • 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

Definitions

  • the present invention relates to the technical field of building materials, and in particular to a formulation for producing three-in-one cement using steel slag and a processing technique thereof.
  • Background Art In the prior art, ordinary cement is prepared by mixing limestone, gypsum auxiliary materials, etc., by calcination, ball milling, and the like. Due to the tight raw materials and rising prices, the production cost of cement has increased.
  • Steel slag refers to the slag which is produced after steel making. After the slag is crushed, the iron and broken iron are taken out for recovery, and the steel slag (also called tailings) is left.
  • the steel slag contains silicon trioxide, aluminum oxide, ferric oxide, calcium oxide, magnesium oxide, etc., and has a hard mass (Mohs hardness of about 8.5 degrees) and a specific gravity of about 1.45 tons/M 3 . Steel slag is generally stored as industrial waste and has not yet been fully utilized.
  • the object of the present invention is to provide a steel slag three-in-one cement and a processing technique thereof, which can fully utilize steel slag, turn waste into treasure, reduce cement production cost, and do not use limestone, no calcination, no carbon dioxide emission, and more environmental protection.
  • steel slag three-in-one cement is prepared by weighting the following materials: steel slag 60-70%, auxiliary material 30-40%.
  • the steel slag three-in-one cement is made of 70% steel slag and 30% auxiliary material, or 65% steel slag and 35% auxiliary material.
  • the auxiliary material may be 100% clinker, or may be a mixture of 25-40% of bottom slag, 60-75% of clinker, or 60-70% of coal gangue, 5-15% of gypsum, clinker 15 - 25% by weight of the mixture, or a mixture of 80-90% clinker, 5-10% gypsum, 5-10% by weight of the gelling material.
  • Excipients are specifically selected from coal gangue 70%, gypsum 10%, clinker 20% mixed or clinker 80%, gypsum 10%, and reduced cementitious material 10%.
  • the steel slag and the auxiliary materials are respectively dried to a water content of 2-3%; To the particle diameter of 5mm or less; further according to the ratio of 60-70% steel slag, 30-40% of the auxiliary material, and finely ground to a specific surface area of 450m 2 /Kg or more; then, pulse homogenization mixing to uniformity CV ⁇ 0.3%; the final packaging, that is, the finished steel slag three-in-one cement.
  • the invention is more than 60% incorporation of steel slag, and the technology is only available at home and abroad, which can not only make the quality of the cement product reach the national standard PC32. 5 cement standard, and can completely replace the cement to form a terminal.
  • the product, and the invention can also make full use of the steel slag, turn waste into treasure, make the resource form a recycling cycle, reduce the cost, and do not use limestone, no calcination, no carbon dioxide emission, and more environmental protection.
  • Figure 1 is a block diagram showing the process flow of the present invention.
  • the steel slag three-in-one cement according to the present invention is made of 60-70% of steel slag and 30-40% by weight of auxiliary materials.
  • the auxiliary material may be 100% clinker, or it may be bottom slag (also can be replaced by fly ash, this is equivalent) 25-40%, clinker 60-75% mixture, or coal gangue 60-70 %, gypsum 5-15%, clinker 15-25% mixture (70% coal gangue, 10% gypsum, 20% clinker is preferred), or clinker 80-90%, gypsum 5-10 %, 5-10% by weight of the cementitious material mixture (preferably 80% clinker, 10% gypsum, 10% gelling material).
  • the formula can also be added with additives according to the quality of the steel slag.
  • the additive is made of aluminum sulfate, ethylene glycol, curing agent, acrylic acid and amine, so that the finished cement can reach the national standard PC32. 5 cement standard and the quality is better.
  • Steel slag is used to replace the semi-finished product in the original cement processing process - clinker.
  • the steel slag When the steel slag is ground to a specific surface area of 450 m 2 /Kg or more, it will activate in the whole formula, and the amount of steel slag will increase.
  • the cost of steel slag three-in-one cement products is reduced but the stability is poor, while the reduction of steel slag will increase the cost of the product but the stability is good.
  • Excipients (which may contain bottom slag or fly ash) play a role in neutralizing steel slag and complementing chemical properties throughout the formulation. As the proportion of auxiliary materials increases, the cost of steel slag three-in-one cement products is high and stable.
  • the reduced gelling material in the auxiliary material acts to excite the material to make the product active and stable, and the reduced gelling material can be added in the pulse mixing homogenization without coarse grinding and fine grinding. Therefore, the specific formula of steel slag three-in-one cement is 70% steel slag, 30% auxiliary material, or 65% steel slag, and 35% auxiliary material is preferred.
  • the steel slag and auxiliary materials are respectively dried to a water content of 2-3% through a drying system.
  • the drying system mainly processes the materials required for the product in the raw product process to achieve the object.
  • the material contains a permanent rate of less than 3%, which guarantees the technical specifications specified in the production process.
  • the dried material is coarsely ground by a coarse grinding system to a particle diameter of 5 mm or less, and the pre-treatment is performed for the next process.
  • the binder is used in the auxiliary material, it may be added in the pulse mixing homogenization without coarse grinding and fine grinding.
  • the ingredients are proportioned by 60-70% steel slag and 30-40% of auxiliary materials.
  • the batching system is the most important in the whole production process, and the accurate batching can ensure the quality of the product. Therefore, the measurement accuracy of the bulk material in the process is less than 0.5% precision, the measurement accuracy of the small material batching 2% ⁇ Achieved less than 0.2% accuracy.
  • the prepared material is finely ground.
  • the system adopts the phase-rotating super-gravity grinding process. Under the excitation of physical mechanics, chemistry and instantaneous ultra-high temperature, the fineness of the grinding powder reaches the specific surface area. Above 450m 2 /Kg, the various properties of the material are changed to meet the national standard PC32. 5 cement standard.
  • pulse homogenization is carried out in a pulse mixing homogenization system. Since the composition of the steel slag three-in-one cement is complicated, it is composed of a plurality of materials and components, and the pulse mixing system is fully utilized for its components. If the binder is used in the auxiliary material, it is better to add it directly in the pulse mixing homogenization. After the fine grinding after the above grinding, the system is homogenized until the uniformity is CV ⁇ 0.3%, in order to achieve the quality requirements of the final product.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)

Abstract

L'invention porte sur un ciment à trois composants fabriqué à partir de scories d'acier, et un procédé pour produire ce ciment. Ce ciment est constitué de 60-70 % en poids de scories d'acier, 10-15 % en poids de scories de fond de four, et 15-30 % de matériaux auxiliaires. Le procédé consiste à sécher les scories d'acier, les scories de fond de four, et le matériau auxiliaire jusqu'à obtenir une teneur en eau respective de 2-3%, et à les broyer grossièrement à un diamètre de particules égal ou inférieur à 5 mm, à préparer un mélange de 60-70 % de scories d'acier, 10-15 % de scories de fond de four, et 15-30 % de matériaux auxiliaires, à broyer finement le mélange pour obtenir une surface spécifique supérieure à 450 m2/kg, à homogénéiser le mélange par un processus pulsé jusqu'à obtenir une uniformité correspondant à un CV < 0,3%, et à compacter le mélange résultant pour obtenir le ciment final. Ce ciment est un produit inédit et répond aux critères d'un ciment PC 32.5, et peut remplacer le ciment conventionnel. La présente invention utilise de grandes quantités de scories d'aciérie, ce qui abaisse le coût du ciment et permet le recyclage des résidus. En outre le ciment est produit sans composant calcaire, qui permet d'éviter l'émission de dioxyde de carbone.
PCT/CN2007/001559 2007-05-14 2007-05-14 Ciment à trois composants fabriqué à partir de scories d'acier et son procédé de production Ceased WO2008138172A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/CN2007/001559 WO2008138172A1 (fr) 2007-05-14 2007-05-14 Ciment à trois composants fabriqué à partir de scories d'acier et son procédé de production

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2007/001559 WO2008138172A1 (fr) 2007-05-14 2007-05-14 Ciment à trois composants fabriqué à partir de scories d'acier et son procédé de production

Publications (1)

Publication Number Publication Date
WO2008138172A1 true WO2008138172A1 (fr) 2008-11-20

Family

ID=40001664

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2007/001559 Ceased WO2008138172A1 (fr) 2007-05-14 2007-05-14 Ciment à trois composants fabriqué à partir de scories d'acier et son procédé de production

Country Status (1)

Country Link
WO (1) WO2008138172A1 (fr)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103011723A (zh) * 2012-12-12 2013-04-03 首钢总公司 大掺量钢渣泡沫混凝土砌块及其制备方法
CN104193205A (zh) * 2014-08-20 2014-12-10 中国建材检验认证集团股份有限公司 一种改性煤矸石及其制备方法以及低铬水泥及其制备方法
CN104529368A (zh) * 2015-01-28 2015-04-22 湖南中建五局混凝土有限公司 一种利用搅拌站废水配制的无熟料水泥超高强混凝土及其使用方法
CN105314900A (zh) * 2014-06-13 2016-02-10 登封中联登电水泥有限公司 一种水泥生料
CN105601134A (zh) * 2015-12-19 2016-05-25 湖南科技大学 一种全利用煤矸石制备水泥的方法
CN109485278A (zh) * 2018-12-13 2019-03-19 扬州大学 一种以煤矸石为原料的胶凝材料及其制备方法
CN109608065A (zh) * 2018-12-20 2019-04-12 廖辉 一种改性复合钢渣粉及其制备方法和应用
CN110317076A (zh) * 2019-07-16 2019-10-11 广东金意陶陶瓷集团有限公司 发泡陶瓷的制备方法及其生产系统、发泡陶瓷及其应用
CN111072297A (zh) * 2019-12-20 2020-04-28 王军霞 一种水泥的生产方法
CN112062484A (zh) * 2020-09-18 2020-12-11 费县沂州水泥有限公司 一种水泥及其制备方法
CN113402190A (zh) * 2021-04-22 2021-09-17 刘新阳 一种硫铝酸盐改性碳钢渣及其使用方法
CN113493318A (zh) * 2021-06-28 2021-10-12 山东大学 一种含有盾构渣土的胶凝材料和制备方法及应用
CN114507054A (zh) * 2022-03-28 2022-05-17 河北工程大学 一种无碱激发剂的煤矸石钢渣路面基混合料及其制备方法
CN116354660A (zh) * 2022-11-23 2023-06-30 上海建工建材科技集团股份有限公司 一种复掺炉底渣与钢渣粉的混凝土及其制备方法
CN116924704A (zh) * 2023-07-19 2023-10-24 浙江福瑞再生资源开发股份有限公司 一种预制不锈钢渣及利用其制备的水泥凝结材料、钙塑材料

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1955136A (zh) * 2005-10-25 2007-05-02 王建伟 三合一水泥及其加工工艺
CN1955140A (zh) * 2005-10-25 2007-05-02 王建伟 干粉砂浆及其加工工艺

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1955136A (zh) * 2005-10-25 2007-05-02 王建伟 三合一水泥及其加工工艺
CN1955140A (zh) * 2005-10-25 2007-05-02 王建伟 干粉砂浆及其加工工艺

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
ZHAO XUGUANG ET AL.: "The development of high strength steel slag cement with high content of steel slag", JOURNAL OF WUHAN UNIVERSITY OF TECHNOLOGY, vol. 26, no. 1, January 2004 (2004-01-01), pages 38 - 41 *

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103011723A (zh) * 2012-12-12 2013-04-03 首钢总公司 大掺量钢渣泡沫混凝土砌块及其制备方法
CN105314900A (zh) * 2014-06-13 2016-02-10 登封中联登电水泥有限公司 一种水泥生料
CN104193205A (zh) * 2014-08-20 2014-12-10 中国建材检验认证集团股份有限公司 一种改性煤矸石及其制备方法以及低铬水泥及其制备方法
CN104529368A (zh) * 2015-01-28 2015-04-22 湖南中建五局混凝土有限公司 一种利用搅拌站废水配制的无熟料水泥超高强混凝土及其使用方法
CN104529368B (zh) * 2015-01-28 2016-05-04 中建西部建设湖南有限公司 一种利用搅拌站废水配制的无熟料水泥超高强混凝土及其使用方法
CN105601134A (zh) * 2015-12-19 2016-05-25 湖南科技大学 一种全利用煤矸石制备水泥的方法
CN109485278B (zh) * 2018-12-13 2021-05-04 扬州大学 一种以煤矸石为原料的胶凝材料及其制备方法
CN109485278A (zh) * 2018-12-13 2019-03-19 扬州大学 一种以煤矸石为原料的胶凝材料及其制备方法
CN109608065A (zh) * 2018-12-20 2019-04-12 廖辉 一种改性复合钢渣粉及其制备方法和应用
CN110317076A (zh) * 2019-07-16 2019-10-11 广东金意陶陶瓷集团有限公司 发泡陶瓷的制备方法及其生产系统、发泡陶瓷及其应用
CN110317076B (zh) * 2019-07-16 2022-02-11 广东金意陶陶瓷集团有限公司 发泡陶瓷的制备方法及其生产系统、发泡陶瓷及其应用
CN111072297A (zh) * 2019-12-20 2020-04-28 王军霞 一种水泥的生产方法
CN112062484A (zh) * 2020-09-18 2020-12-11 费县沂州水泥有限公司 一种水泥及其制备方法
CN113402190A (zh) * 2021-04-22 2021-09-17 刘新阳 一种硫铝酸盐改性碳钢渣及其使用方法
CN113493318A (zh) * 2021-06-28 2021-10-12 山东大学 一种含有盾构渣土的胶凝材料和制备方法及应用
CN114507054A (zh) * 2022-03-28 2022-05-17 河北工程大学 一种无碱激发剂的煤矸石钢渣路面基混合料及其制备方法
CN116354660A (zh) * 2022-11-23 2023-06-30 上海建工建材科技集团股份有限公司 一种复掺炉底渣与钢渣粉的混凝土及其制备方法
CN116924704A (zh) * 2023-07-19 2023-10-24 浙江福瑞再生资源开发股份有限公司 一种预制不锈钢渣及利用其制备的水泥凝结材料、钙塑材料
CN116924704B (zh) * 2023-07-19 2024-02-06 浙江福瑞再生资源开发股份有限公司 一种预制不锈钢渣及利用其制备的水泥凝结材料、钙塑材料

Similar Documents

Publication Publication Date Title
WO2008138172A1 (fr) Ciment à trois composants fabriqué à partir de scories d&#39;acier et son procédé de production
CN103193403B (zh) 高活性赤泥基混凝土掺合料制备方法
CN102765889B (zh) 一种含粉煤灰的尾矿废石高强混凝土的制备方法
CN102718423B (zh) 活化低等粉煤灰复合材料制备方法
JP2015517448A (ja) 無機結合剤用の粉砕添加剤
CN108483953A (zh) 一种低水化热铜渣基复合胶凝材料及其制备方法
CN101367629A (zh) 利用电解锰渣生产类硫铝酸盐水泥及其制备方法
CN102745924A (zh) 可缩短磷石膏基水泥混凝土凝结时间的磷石膏改性方法
CN106082720A (zh) 一种高强度水泥及其制备方法
WO2008138170A1 (fr) Mortier sous forme de poudre sèche produit à partir de scories d&#39;acier et son procédé de production
CN108147769A (zh) 一种碳激发钢渣砖的制备方法
CN101250035A (zh) 一种用于水泥或混凝土的膨胀剂及制备方法
CN107056115A (zh) 一种用于磷石膏基胶凝材料的促凝型早强剂及其制备方法
CN106747190A (zh) 一种早强微膨胀型土壤固化剂及制备方法
Yang et al. Achieving carbon utilization and storage (CUS) in cement-based materials with wet-grinding carbonated concrete slurry waste
CN102491717A (zh) 具有抗起砂和抗碳化性能的石膏基混凝土及其制备方法
CN102503199B (zh) 混凝土用复合粉煤灰
CN105418046A (zh) 一种环保型路面基层用水泥基材料
CN104129933B (zh) 一种利用废铜矿渣制得的核电水泥及其制备方法
CN105693119A (zh) 一种改性磷渣粉及其制备方法和应用
CN108546009A (zh) 掺多尺度粒径CaCO3的高性能混凝土浆状掺合料
CN105621910A (zh) 一种硫铝酸盐水泥熟料及其制备方法，硫铝酸盐水泥
CN103964717B (zh) 铁尾矿活性的提高方法、所得的铁尾矿和应用
CN101343156B (zh) 一种提高粉煤灰混凝土掺合料质量的方法
CN106946537A (zh) 一种钛石膏高性能混凝土建材及其制备方法

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 07721132

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 07721132

Country of ref document: EP

Kind code of ref document: A1