WO2008145522A1 - Procédé et installation de production de ciment - Google Patents

Procédé et installation de production de ciment Download PDF

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Publication number
WO2008145522A1
WO2008145522A1 PCT/EP2008/055918 EP2008055918W WO2008145522A1 WO 2008145522 A1 WO2008145522 A1 WO 2008145522A1 EP 2008055918 W EP2008055918 W EP 2008055918W WO 2008145522 A1 WO2008145522 A1 WO 2008145522A1
Authority
WO
WIPO (PCT)
Prior art keywords
hydraulic
clinker
mineral mixture
latent
latent hydraulic
Prior art date
Application number
PCT/EP2008/055918
Other languages
German (de)
English (en)
Inventor
Wilfried Kreft
Original Assignee
Polysius Ag
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 Polysius Ag filed Critical Polysius Ag
Publication of WO2008145522A1 publication Critical patent/WO2008145522A1/fr

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
    • C04B7/36—Manufacture of hydraulic cements in general
    • C04B7/48—Clinker treatment
    • 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
    • C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
    • 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
    • C04B7/17—Mixtures thereof with other inorganic cementitious materials or other activators with calcium oxide containing activators
    • C04B7/19—Portland cements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B19/00—Combinations of furnaces of kinds not covered by a single preceding main group
    • F27B19/04—Combinations of furnaces of kinds not covered by a single preceding main group arranged for associated working
    • 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
    • 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
    • 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
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/91—Use of waste materials as fillers for mortars or concrete

Definitions

  • the invention relates to a method and a plant for the production of cement by blending of hydraulic clinker and a latent hydraulic mineral mixture.
  • DE-C2-33 10 129 a process for the preparation of different hydraulic binders from common raw materials in a firing process operated, wherein a partial flow of the gas / solid stream is branched off in the region of the calciner.
  • a binder composition is known in the deacidified cement raw meal with a latent hydraulic hardening substance, such as
  • Blast furnace slag in particular blastfurnace slag, is mixed.
  • a fast-curing hydraulic binder is also known from DE-T2-693 15 078, which is formed by a mixture of natural cement with natural or artificial pozzolans, such as industrial waste, in particular silica fumes.
  • the invention is therefore based on the object of specifying a method and a plant for the production of cement, which allow a saving of heat energy and a reduction of the CO 2 emission even in such cases.
  • the raw materials of the latent hydraulic mineral mixture will be composed so that the latent hydraulic mineral mixture has a component of 30 to 40% by weight of CaO and the latent hydraulic mineral mixture is prepared by subsequently firing or melting these raw materials and cooling.
  • industrial waste is not resorted to, but the latent hydraulic mineral mixture is prepared by purposefully assembling desired raw materials and then firing or melting these raw materials and cooling.
  • At least one furnace for burning the hydraulic clinker and the latent hydraulic mineral mixture means for combining the hydraulic clinker and the latent hydraulic mineral mixture separately prepared therefrom and a milling device for the common grinding of the mixture of hydraulic clinker and latent hydraulic Mineral mixture provided.
  • the hydraulic clinker and the latent hydraulic mineral mixture are mixed together such that the proportion of hydraulic clinker in the range of 3 to 40 wt.%, Preferably in the range of 20 to 30 wt.% Is.
  • the raw materials of the hydraulic clinker are preferably composed to have a component of 60 to 70% by weight of CaO.
  • the drawing shows a block diagram of a plant for the production of cement by blending of hydraulic clinker and a latent hydraulic mineral mixture.
  • the plant consists essentially of a first process strand 1 for producing a hydraulic clinker 2 and a second process strand 3 for producing a latent hydraulic mineral mixture 4.
  • the first process strand 1 comprises in particular an oven 5 and a downstream cooler 6. The for the production of the hydraulic Clinker 2 required
  • Raw materials 7 are supplied to the furnace 5 in a suitable form. Before the actual firing process, the raw materials are preheated in the usual manner and / or precalcined.
  • Also in the second process strand 3 is a furnace 8 with a downstream
  • Cooler 9 is provided to produce the latent hydraulic mineral mixtures 4 by assembling desired raw materials 10, then firing or melting of these raw materials and subsequent cooling.
  • means 11 for merging the hydraulic clinker 2 and the latent hydraulic mineral mixture 4 are provided. These means can be formed for example by dosing belt cars. The ratio of the two components can thereby be adapted to the corresponding requirements. Preferably, the proportion of the hydraulic clinker is in the range of 3 to 40 wt.%, Preferably in the range of 20 to 30 wt.%.
  • the resulting mixture 12 is ground, optionally with the addition of further ingredients 13, such as gypsum and other additives in a grinder 14 to cement 15.
  • the latent hydraulic mineral mixture has a component of 30 to 40 wt.% CaO, while the corresponding constituent of CaO in the hydraulic clinker is preferably between 60 to 70 wt.%.
  • the heat requirement can be reduced by about 30% compared with a cement made from pure hydraulic clinker.
  • the emission of CO 2 from CaCO 3 and CO 2 from fuel combustion is reduced even more. This results in great benefits for the heat industry and a significantly reduced environmental impact.

Landscapes

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

Abstract

La présente invention concerne un procédé de production de ciment par mélange de clinker hydraulique et d'un mélange minéral hydraulique latent qui subissent une cuisson séparée. Les matières premières nécessaires pour la constitution du mélange minéral hydraulique latent sont rassemblées de sorte que le mélange minéral hydraulique latent a une teneur de 30 à 40 % en poids de CaO et est préparé par cuisson ou fusion subséquente de ces matières premières puis refroidissement.
PCT/EP2008/055918 2007-05-30 2008-05-14 Procédé et installation de production de ciment WO2008145522A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007025094.2 2007-05-30
DE200710025094 DE102007025094A1 (de) 2007-05-30 2007-05-30 Verfahren und Anlage zur Herstellung von Zement

Publications (1)

Publication Number Publication Date
WO2008145522A1 true WO2008145522A1 (fr) 2008-12-04

Family

ID=39651430

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2008/055918 WO2008145522A1 (fr) 2007-05-30 2008-05-14 Procédé et installation de production de ciment

Country Status (2)

Country Link
DE (1) DE102007025094A1 (fr)
WO (1) WO2008145522A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008059370B4 (de) * 2008-11-28 2012-02-09 Polysius Ag Verfahren und Anlage zur Herstellung von Zement

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3310129A1 (de) * 1983-03-21 1984-09-27 Klöckner-Humboldt-Deutz AG, 5000 Köln Verfahren und vorrichtung zur herstellung von hydraulischen bindemitteln
US5043020A (en) * 1988-09-23 1991-08-27 Lerke Pavel P Method for production of portland clinker
CN1092390A (zh) * 1993-12-28 1994-09-21 浙江大学 用硫酸铝渣作水泥生料原料和混合材的水泥生产工艺
WO2005030669A1 (fr) * 2003-09-23 2005-04-07 Polysius Ag Procede et dispositif pour produire un liant hydraulique
US20050252421A1 (en) * 2004-05-13 2005-11-17 Procedo Enterprises Etablissement Processing system for manufacturing composite cementitious materials with reduced carbon dioxide emissions

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3412357A1 (de) * 1984-04-03 1985-10-10 Klöckner-Humboldt-Deutz AG, 5000 Köln Hydraulisch haertbare, anorganische bindemittelzusammensetzung
FR2694552B1 (fr) * 1992-08-05 1994-10-28 Vicat Liants hydrauliques à prise et durcissement rapides, leur préparation et leur utilisation pour la préparation de mortiers et bétons.
EP1741683A3 (fr) 2005-07-08 2010-09-01 Alexander Kehrmann Mélange des matières brutes pour la production d'un clinker de ciment, clinker de ciment et ciment

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3310129A1 (de) * 1983-03-21 1984-09-27 Klöckner-Humboldt-Deutz AG, 5000 Köln Verfahren und vorrichtung zur herstellung von hydraulischen bindemitteln
US5043020A (en) * 1988-09-23 1991-08-27 Lerke Pavel P Method for production of portland clinker
CN1092390A (zh) * 1993-12-28 1994-09-21 浙江大学 用硫酸铝渣作水泥生料原料和混合材的水泥生产工艺
WO2005030669A1 (fr) * 2003-09-23 2005-04-07 Polysius Ag Procede et dispositif pour produire un liant hydraulique
US20050252421A1 (en) * 2004-05-13 2005-11-17 Procedo Enterprises Etablissement Processing system for manufacturing composite cementitious materials with reduced carbon dioxide emissions

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
CEM. CONCR. COMPOS., vol. 16, no. 1, 1994, pages 39 - 48 *
CHEMICAL ABSTRACTS, vol. 121, no. 12, 19 September 1994, Columbus, Ohio, US; abstract no. 140167, TAY, J-H.; SHOW, K-Y: "Municipal wastewater sludge as cementitious and blended cement materials" page 420; XP000494194 *

Also Published As

Publication number Publication date
DE102007025094A1 (de) 2008-12-04

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