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DE420850C - Process for the production of blast furnace slag cement - Google Patents

Process for the production of blast furnace slag cement

Info

Publication number
DE420850C
DE420850C DEM76527D DEM0076527D DE420850C DE 420850 C DE420850 C DE 420850C DE M76527 D DEM76527 D DE M76527D DE M0076527 D DEM0076527 D DE M0076527D DE 420850 C DE420850 C DE 420850C
Authority
DE
Germany
Prior art keywords
blast furnace
production
furnace slag
slag cement
cement
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.)
Expired
Application number
DEM76527D
Other languages
German (de)
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.)
OSKAR NICKEL
Original Assignee
OSKAR NICKEL
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 OSKAR NICKEL filed Critical OSKAR NICKEL
Priority to DEM76527D priority Critical patent/DE420850C/en
Application granted granted Critical
Publication of DE420850C publication Critical patent/DE420850C/en
Expired 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
    • 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
    • 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

Landscapes

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

Description

Verfahren zur Herstellung von Hochofenschlackenzement. In dem Patent q.10324 ist ein Verfahren zur Herstellung hochwertigen, lagerbeständigen Zementes durch Zusammenmahlen wassergekörnter, entwässerter Hochofenschlacke mit gebranntem, ungelöschtem Kalk unter Schutz gestellt, wonach von weitgehend getrockneter, wassergekörnter Schlacke ausgegangen wird und Vermahlung sowie Weitergabe des Mahlerzeugnisses zur Lagerung nur trocken erfolgen.Process for the production of blast furnace slag cement. In the patent q.10324 is a process for the production of high-quality, shelf-stable cement by grinding water-grained, dewatered blast furnace slag with burnt, unslaked lime placed under protection, after which largely dried, water-grained Slag is assumed and milling and passing on of the milled product for Store in a dry place only.

Es wurde nun weiter gefunden, daß auch die nicht wassergekörnte Schlacke, die also an der Luft erstarrt ist (luftgranulierte, lufterstarrte Schlacke), in gleicher Weise auf Zement verarbeitet werden kann, indem sie je nach ihrer Zusammensetzung und Güte mit einem Zusatz von zo bis 30 Prozent gebranntem, nichthydratisiertem Kalk unter den gleichen Bedingungen fein vermahlen und weiterbehandelt wird. Es entsteht auch hier unmittelbar ein brauchbarer, hochwertiger Zement, der bei sachgemäßer Aufbereitung den hochwertigen Portlandzementen in jeder Beziehung gleichkommt, aber billiger als dieser und andere Zemente ist.It has now also been found that the non-water-grained slag, which has solidified in the air (air-granulated, air-solidified slag), can be processed in the same way on cement by adding zo to, depending on its composition and quality 30 percent quick, non-hydrated lime is finely ground and further treated under the same conditions. Here, too, a usable, high-quality cement is immediately produced, which, when properly prepared, equals high-quality Portland cements in every respect, but is cheaper than this and other cements.

Es ist bereits bekannt, bei einem Zementherstellungsverfahren gebrannten, ungelöschten Kalk und trockene Hochofenschlacke in feingemahlenem Zustand miteinander zu vermischen oder gemeinsam zu vermahlen. Man hat aber geglaubt, daß diese Mischung noch nicht einen Zement darstellt, sondern man war der Ansicht, daß dieses Erzeugnis eine begrenzte Hydratation durch Behandeln mit Wasser unterworfen werden müßte, um in der Schlacke die latenten hydraulischen Eigenschaften zu wecken.It is already known that burned, unslaked lime and dry blast furnace slag in a finely ground state to mix or grind together. But it was believed that this mixture does not yet represent a cement, but it was believed that this product would have to be subjected to limited hydration by treatment with water, to awaken the latent hydraulic properties in the slag.

Neu ist demgegenüber die Erkenntnis, daß das zusammengemahlene Gemisch aus trockener, an der Luft erstarrter Schlacke und gebranntem Kalk ohne weiteres fertigen Zement darstellt.What is new, however, is the knowledge that the ground mixture from dry slag solidified in the air and burnt lime easily Represents finished cement.

Claims (1)

PATENT-ANSPRUCH: Verfahren zur Herstellung von lagerbeständigem Zement durch Zusammenmahlen von an der Luft erstarrter Hochofenschlacke mit gebranntem, nicht gelöschtem Kalk, dadurch gekennzeichnet, daß die Vermahlung sowie Weitergabe des Mahlerzeugnisses zur Lagerung usw. trocken erfolgt. PATENT CLAIM: Process for the production of stable cement by grinding together blast furnace slag solidified in the air with burnt, non-slaked lime, characterized in that the grinding and transfer of the ground product for storage etc. takes place dry.
DEM76527D 1922-01-28 1922-01-28 Process for the production of blast furnace slag cement Expired DE420850C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEM76527D DE420850C (en) 1922-01-28 1922-01-28 Process for the production of blast furnace slag cement

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEM76527D DE420850C (en) 1922-01-28 1922-01-28 Process for the production of blast furnace slag cement

Publications (1)

Publication Number Publication Date
DE420850C true DE420850C (en) 1925-11-02

Family

ID=7317074

Family Applications (1)

Application Number Title Priority Date Filing Date
DEM76527D Expired DE420850C (en) 1922-01-28 1922-01-28 Process for the production of blast furnace slag cement

Country Status (1)

Country Link
DE (1) DE420850C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3742566A1 (en) * 1987-12-16 1989-07-06 Wethmar Herbert Dipl Kaufm Hydraulic binder

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3742566A1 (en) * 1987-12-16 1989-07-06 Wethmar Herbert Dipl Kaufm Hydraulic binder

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