DE359969C - Process for the production of alluvial stones - Google Patents

Process for the production of alluvial stones

Info

Publication number
DE359969C
DE359969C DESCH59990D DESC059990D DE359969C DE 359969 C DE359969 C DE 359969C DE SCH59990 D DESCH59990 D DE SCH59990D DE SC059990 D DESC059990 D DE SC059990D DE 359969 C DE359969 C DE 359969C
Authority
DE
Germany
Prior art keywords
alluvial
stones
production
pumice
pumice sand
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
DESCH59990D
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.)
JOHANNES SCHNUETGEN
Original Assignee
JOHANNES SCHNUETGEN
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 JOHANNES SCHNUETGEN filed Critical JOHANNES SCHNUETGEN
Priority to DESCH59990D priority Critical patent/DE359969C/en
Application granted granted Critical
Publication of DE359969C publication Critical patent/DE359969C/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
    • 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
    • C04B28/18—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 mixtures of the silica-lime type
    • 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
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/40—Porous or lightweight materials
    • C04B2111/42—Floating materials

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Press-Shaping Or Shaping Using Conveyers (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)

Description

Verfahren zur Herstellung von Schwemmsteinen. Bei der Herstellung von Schwemmsteinen aus Bimskies oder Bimssand und Kalk wird der Bimssand in der Regel in ziemlich trockener Form benutzt und zu dem Kalk oder zur fertigen Mischung das zur Verformung erforderliche Wasser zugegeben. Dadurch aber wurden die zwecks Härtung mit Dampf behandelten Formlinge zu naß und zu schwer. Sie kamen feucht aus dem Kessel oder den Härtekammern und waren deshalb entweder für unmittelbare Versendung nicht geeignet oder bedingten .bei solcher höhere Frachtkosten.Process for the production of alluvial stones. In the preparation of from alluvial stones made of pumice gravel or pumice sand and lime the pumice sand is in the Usually used in a fairly dry form and with the lime or the finished mixture the water required for deformation is added. But this became the purpose Hardening steamed moldings too wet and too heavy. They came off damp the boiler or the hardening chambers and were therefore either for immediate dispatch not suitable or conditional. with such higher freight costs.

Nach der Erfindung wird dieser Mangel zu hoher Nässe gehärteter Schwemmsteine nun durch eine andere Art der Aufbereitung und Benutzung bestimmter Rohstoffe vermieden.According to the invention, this shortcoming becomes too wet for alluvial stones hardened now avoided by a different type of processing and use of certain raw materials.

Es wird von grubenfeuchtem Bimskies ausgegangen und von solchem ein Teil der für die Schwemmsteinmasse erforderlichen Menge gemahlen. Das so entstehende nasse Mahlgut wird mit grubenfeuchtem Bimssand und gelöschtem Magnesiakalk vermengt. Es hat nun ohne weiteres die erforderliche Preßfeuchtigkeit, so daß die Verformung ohne weiteren Zusatz von Wasser erfolgen kann.It is assumed that pumice gravel is moist from the pit and one Part of the amount required for the alluvial stone is ground. The resulting Wet grist is mixed with pit-moist pumice sand and slaked magnesia lime. It now has the required pressing moisture without further ado, so that the deformation can be done without further addition of water.

Die Formlinge oder Preßlinge werden in Dampfdruck gehärtet, und sie kommen nun infolge der besonderen Vorbehandlung, nämlich der Naßmahlung der eigenartigen Mischung und der Vermeidung besonderen Wasserzusatzes, trocken bzw. fast trocken aus dem Härtekessel oder der Härtekammer. Sie sind dadurch leichter, fester und für die Versendung günstiger.The moldings or compacts are cured in steam pressure, and they Now come as a result of the special pretreatment, namely the wet grinding, the peculiar Mixing and avoiding the addition of special water, dry or almost dry from the hardening kettle or the hardening chamber. This makes them lighter, stronger and cheaper for shipping.

Claims (1)

PATENTANSPRUCH Verfahren zur Herstellung von Schwemmsteinen, dadurch gekennzeichnet, daß ein Teil des rohen Bimssandes ungetrocknet gemahlen, das Mahlgut mit grubenfeuchtem Bimssand und gelöschtem Magnesiakalk vermengt, das Gemenge ohne Zusatz von Wasser verformt und die Formlinge in Dampfdruck gehärtet werden.PATENT CLAIM Process for the production of alluvial stones, thereby characterized in that part of the raw pumice sand is ground undried, the grist mixed with pit-moist pumice sand and slaked magnesia lime, the mixture without The addition of water is deformed and the moldings are hardened in steam pressure.
DESCH59990D 1920-11-25 1920-11-25 Process for the production of alluvial stones Expired DE359969C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DESCH59990D DE359969C (en) 1920-11-25 1920-11-25 Process for the production of alluvial stones

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DESCH59990D DE359969C (en) 1920-11-25 1920-11-25 Process for the production of alluvial stones

Publications (1)

Publication Number Publication Date
DE359969C true DE359969C (en) 1922-09-28

Family

ID=7437209

Family Applications (1)

Application Number Title Priority Date Filing Date
DESCH59990D Expired DE359969C (en) 1920-11-25 1920-11-25 Process for the production of alluvial stones

Country Status (1)

Country Link
DE (1) DE359969C (en)

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