DE368807C - Process for the production of cement using, in particular, acid slag - Google Patents

Process for the production of cement using, in particular, acid slag

Info

Publication number
DE368807C
DE368807C DEM75706D DEM0075706D DE368807C DE 368807 C DE368807 C DE 368807C DE M75706 D DEM75706 D DE M75706D DE M0075706 D DEM0075706 D DE M0075706D DE 368807 C DE368807 C DE 368807C
Authority
DE
Germany
Prior art keywords
slag
clinker
production
cement
acid slag
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
DEM75706D
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.)
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 DEM75706D priority Critical patent/DE368807C/en
Application granted granted Critical
Publication of DE368807C publication Critical patent/DE368807C/en
Expired legal-status Critical Current

Links

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
    • C04B7/14Cements containing slag
    • C04B7/147Metallurgical slag
    • C04B7/153Mixtures thereof with other inorganic cementitious materials or other activators
    • C04B7/17Mixtures thereof with other inorganic cementitious materials or other activators with calcium oxide containing 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

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 Zement 'unter Verwendung insbesondere saurer Schlacken. Bei Herstellung von Hochofenzement war maxi gezwungen, als Schlackenanteile basische Schlacke zu verwenden, da saure Schlacken reaktionsträge sind, infolgedessen nur schlechte Festigkeiten ergeben. Man nimmt zur Herstellung des Hochofenzementes in der Regel einen möglichst hochkalkigen Klinker, um, die Reaktionsträgheit mancher Schlacken zu überwinden und zu guten Anfangsfestgkeiten zu kommen. Der Verwendung hochkalkiger Klinker sind aber sehr enge Grenzen gesetzt, denn, wenn auch Klinker verwendet werden können, die, allein° vermahlen, treiben würden, so kann doch der Kalkgehalt nicht ein gewisses, geringes Maß überschreiten, ohne daß ein Treiber erzielt wird.Process for the production of cement 'using in particular acid slags. During the production of blast furnace cement maxi was forced to use as slag proportions to use basic slag, since acidic slags are inert, as a result result in only poor strengths. One takes for the production of the blast furnace cement As a rule, a clinker that is as high-lime as possible, um, the inertia of some To overcome slag and to get a good start. Of use Highly limestone clinker, however, has very narrow limits, because, albeit clinker can be used which, if ground alone, would float, the Lime content does not exceed a certain, small level without a driver is achieved.

Das vorliegende Verfahren nun nimmt auch hochkalkigem Klinker jede Treibeigenschaft und vermittelt gleichzeitig eine in wissenschaftlicher Beziehung noch ungeklärte Einwirkung des Klinkers auf die Schlacke. Diese Reaktionen werden dadurch erzielt, daß ein Teil z. B. ein Viertel der Schlacke naß und der übrige Teil trocken in die Mühle eingebracht wird. Heißes Vermahlen ist hierbei von Vorteil und zweckmäßig. Das mit der Schlacke eingebrachte Wasser beruhigt den Klinker und schließt gleichzeitig die Schlacke auf. Durch diese Einwirkung ist es möglich, z. sehr kalkreiche Klinker zu verwenden, die zu hohen Festigkeiten führen und auch auf saure Schlacken günstig einwirken. Die Treibeigenschaft dieser Klinker wird durch die nasse Schlacke zerstört, und es wird möglich, Klinker zu verwenden, welche in bisherigem Betrieb uribrauchbar waren, da sie zu Treibern führten.The present method now also takes any high-limestone clinker Driving ability and at the same time conveys one in a scientific relationship as yet unexplained effect of the clinker on the slag. These reactions will be achieved in that a part z. B. a quarter of the slag wet and the rest Part dry is brought into the mill. Hot grinding is an advantage here and functional. The water brought in with the slag calms the clinker and opens up the slag at the same time. By this action it is possible, for. to use very lime-rich clinker, which leads to high strength and also have a beneficial effect on acidic slag. The blowing property of this clinker will destroyed by the wet slag, and it becomes possible to use clinker which were originally usable because they led to drivers.

2. sehr saure Schlacken zu verarbeiten, da die kalkreichen Klinker, denen durch das Verfahren die-Treibeigenschaft genommen ist, auch saure Schlacken in genügendem Maße zu Erhärtung anregen.2. to process very acidic slag, since the lime-rich clinker, which have lost their propellant properties as a result of the process, including acidic slag stimulate sufficient hardening.

Claims (1)

PATENT-ANSpRUcH: Verfahren zur Herstellung von Zement unter Verwendung inübesonderer saurer Schlacken, dadurch gekennzeichnet, daß für das heiße Zusammenmahlen mit hochkalkigem Klinker ein Teil der wassergranulierten Schlacke, beispielsweise ein Viertel, in nassem Zustande und der übrige Teil trocken in die Mühle gebracht wird.PATENT CLAIM: Method of making cement using in particular acidic slag, characterized in that for hot grinding with high-lime clinker a part of the water-granulated slag, for example a quarter brought into the mill wet and the remainder dry will.
DEM75706D 1921-11-11 1921-11-11 Process for the production of cement using, in particular, acid slag Expired DE368807C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEM75706D DE368807C (en) 1921-11-11 1921-11-11 Process for the production of cement using, in particular, acid slag

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEM75706D DE368807C (en) 1921-11-11 1921-11-11 Process for the production of cement using, in particular, acid slag

Publications (1)

Publication Number Publication Date
DE368807C true DE368807C (en) 1923-02-08

Family

ID=7316525

Family Applications (1)

Application Number Title Priority Date Filing Date
DEM75706D Expired DE368807C (en) 1921-11-11 1921-11-11 Process for the production of cement using, in particular, acid slag

Country Status (1)

Country Link
DE (1) DE368807C (en)

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