DE2134232A1 - Pulverulent plaster mix - prepd by mixing powdered quick lime with undried sand - Google Patents

Pulverulent plaster mix - prepd by mixing powdered quick lime with undried sand

Info

Publication number
DE2134232A1
DE2134232A1 DE19712134232 DE2134232A DE2134232A1 DE 2134232 A1 DE2134232 A1 DE 2134232A1 DE 19712134232 DE19712134232 DE 19712134232 DE 2134232 A DE2134232 A DE 2134232A DE 2134232 A1 DE2134232 A1 DE 2134232A1
Authority
DE
Germany
Prior art keywords
sand
undried
prepd
pulverulent
quick lime
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.)
Pending
Application number
DE19712134232
Other languages
German (de)
Inventor
Egon Katz De Castro
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 DE19712134232 priority Critical patent/DE2134232A1/en
Publication of DE2134232A1 publication Critical patent/DE2134232A1/en
Pending 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
    • C04B2/00Lime, magnesia or dolomite
    • C04B2/02Lime
    • C04B2/04Slaking
    • C04B2/06Slaking with addition of substances, e.g. hydrophobic agents ; Slaking in the presence of other compounds
    • C04B2/066Making use of the hydration reaction, e.g. the reaction heat for dehydrating gypsum; Chemical drying by using unslaked lime

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Processing Of Solid Wastes (AREA)

Abstract

The quick lime reacts with moisture contained in the sand so that there is no need to pre-dry the latter. There is no lumping when the mix is subsequently mixed with water.

Description

Verfahren zur Herstellung von Putz in Pulverform Die Erfindung betrifft ein verbessertes Verfahren zur Herstellung von Putz in Pulverform.Process for the production of plaster in powder form The invention relates to an improved method of making plaster in powder form.

Es sind bereits Gemische für Bauzwecke im allgemeinen auf der Grundlage von Sand und Kalkhydrat unter einfacher Zugabe von Wasser bekannt, um auf diese Weise Putz oder dergleichen zum Verputzen von Wänden oder sonstigen Flächen zu erhalten.There are already mixtures for building purposes in general on the basis of sand and hydrated lime with the simple addition of water known to act on this Way to get plaster or the like for plastering walls or other surfaces.

Die industrielle Herstellung solcher Gemische von vorgefertigtem Trockenputz stellt ein schwieriges technisches Problem dar; es muß nämlich einforheriges Trocknen des Sandes vorgenommen werden, um zu vermeiden, daß im Gemisch etwa Klumpen oder Agglomerate entstehen. Es ist offensichtlich, daß das Trocknen eines Materials wie Sand, das in großen Mengen bearbeitet werden muß, einen kostspieligen und arbeitsintensiven Vorgang aarstellt.The industrial production of such mixtures of prefabricated dry plaster poses a difficult technical problem; namely, it has to be dried beforehand of the sand to avoid lumps or lumps in the mixture Agglomerates arise. It is obvious that drying a material like Sand, which must be processed in large quantities, is an expensive and labor-intensive one Process.

Aufgabe der Erfindung ist es, ein verbessertes Verfahren Bur Herstellung von vorgefertigtein Trockenputz in Pulverform bezw. eines Trockenputzgemisches zu schaffen; dabei soll die Notwendigkeit, den Sand in einem vorangehenden Arbeitsgang zu trocknen, entfallen.The object of the invention is to provide an improved method Bur Production of prefabricated dry plaster in powder form respectively. a dry plaster mixture to accomplish; this should eliminate the need to remove the sand in a previous operation to dry is not necessary.

Erfindungsgeniäß wird dies erreicht durch Bereitung eines Gemisches aus feinpulverisiertem ungelöschtem Kalk mit ungetrocknetem Sand und Hydratbildung des Kalks auf Kosten der in dem Sand enthaltenen Feuchtigkeit.According to the invention, this is achieved by preparing a mixture from finely pulverized unslaked lime with undried sand and hydrate formation of the lime at the expense of the moisture contained in the sand.

Es ist bekannt, daß ungelöschter Kalk in Kontakt mit Wasser hydratisiert, und zwar unter reichlicher Wärmeabgabe gemäß der einfachen und allgemein bekannten Reaktionsformel: CaO + H20 = Ca (OH)3.It is known that unslaked lime hydrates in contact with water, namely with abundant heat emission according to the simple and well-known Reaction formula: CaO + H20 = Ca (OH) 3.

Die vorliegende Erfindung nutzt dies aus.The present invention takes advantage of this.

Es wird ein Gemisch aus feinpulverisiertem ungelöschtem Kalk mit ungetrocknetem Sand bereitet. Als Folge kommt es hierauf zur Hydratbildüng des Kalks auf Kosten der in dem Sand enthaltenen Feuchtigkeit. Dabei werden der Sand getrocknet sowie Feuchtigkeitsrückstände sowohl im Sand als auch im Gemisch beseitigt infolge der bei der bekannten Reaktion der Hydratbildung abgegebenen großen Wärmemenge.It becomes a mixture of finely pulverized unslaked lime with undried Preparing sand. As a result, the lime will hydrate at the expense the moisture contained in the sand. In doing so, the sand will be dried as well Moisture residues both in the sand and in the mixture eliminated as a result of the large amount of heat given off in the known reaction of hydrate formation.

Im Kontakt mit dem feinpulverisierten Kalk ergibt sich die Reaktion der Hydratbildung unter Aufnahme des im Sande selbst befindlichen Wassers; das Wasser wird beseitigt, indem man sich einer wirklichen Trocknung auf chemischem Wege bedient.The reaction occurs in contact with the finely powdered lime the formation of hydrate with absorption of the water in the sand itself; the water is eliminated by making use of real drying by chemical means.

Die vorliegende Erfindung ermöglicht also insbesondere die industrielle Verwertung der bei der Hydratbildung abgegebenen Wärme für das Trocknen des Sandes sowie der eigentlichen im Entstehen begriffenen Mischung. Dadurch erhält man ein absolut neues sowie äußerst einfaches und praktisches Verfahren für die Herstellung derartiger Gemische. Eine solche Ausnutzung macht das vorherige Trocknen des Sandes entbehrlich. Der Sand kann in feuchtem Zustand, so wie er aus dem Sandvorkommen gewonnen wird, beigegeben werden. Dies stellt eine der wesentlichen durch das erfindungsgemäße Verfahren erzielten Verbesserungen dar.The present invention thus enables, in particular, the industrial one Utilization of the heat given off during hydrate formation to dry the sand as well as the actual nascent mix. This gives you a absolutely new as well as extremely simple and practical method of manufacture such mixtures. Such an exploitation makes the previous drying of the sand dispensable. The sand can be in a moist state, just like it comes from the sand deposits will be added. This constitutes one of the essentials of the invention Processes represent improvements achieved.

Da bei der Reaktion der Hydratbildung eine reichliche Wärmeabgabe erfolgt - das Wasser kommt zum wochen -trägt diese Wärme darüber hinaus noch dazu bei, das Trocknen des Sandes und des eigentlichen Gemischs zu verbessern und zu beschleunigen. Außerdem trägt die Tatsache, daß die Temperatur auf einen ausreichend hohen Wert ansteigt, wesentlich zur Erzelung eines Gemischs von sehr viel reinerem Aussehen als dem der gebräuchlichen Gemische bei. Das durch das erfindungsgemäße Verfahren gewonnene Erzeugnis wird also noch geeigneter und wertvoller für seinen bestimmungsgemäßen Einsatz.Since there is an abundant release of heat during the hydrate formation reaction takes place - the water comes for weeks - this warmth also contributes to it at improving the drying of the sand and the actual mixture accelerate. In addition, the fact that the temperature is at a sufficient level contributes to it high Value increases, essential for the production of a mixture of much purer appearance than that of the usual mixtures. That through the The product obtained by the method according to the invention thus becomes even more suitable and valuable for its intended use.

PatentanspruchClaim

Claims (1)

Patentanspruch Verfahren zur Herstellung von Putz in Pulverform, gekennzeichnet durch die Bereitung eines Gemischs aus feinpulverisiertem ungelöschtem Kalk mit ungetrocknetem Sand und Hydratbildung des Kalks auf Kosten der in dem Sand enthaltenen Feuchtigkeit. Process for the production of plaster in powder form, characterized by the preparation of a mixture of finely pulverized unslaked Lime with undried sand and hydrate formation of the lime at the expense of that in the sand contained moisture.
DE19712134232 1971-07-09 1971-07-09 Pulverulent plaster mix - prepd by mixing powdered quick lime with undried sand Pending DE2134232A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19712134232 DE2134232A1 (en) 1971-07-09 1971-07-09 Pulverulent plaster mix - prepd by mixing powdered quick lime with undried sand

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19712134232 DE2134232A1 (en) 1971-07-09 1971-07-09 Pulverulent plaster mix - prepd by mixing powdered quick lime with undried sand

Publications (1)

Publication Number Publication Date
DE2134232A1 true DE2134232A1 (en) 1973-01-25

Family

ID=5813149

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19712134232 Pending DE2134232A1 (en) 1971-07-09 1971-07-09 Pulverulent plaster mix - prepd by mixing powdered quick lime with undried sand

Country Status (1)

Country Link
DE (1) DE2134232A1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19543121A1 (en) * 1995-11-18 1997-05-22 Georg Badum Manufacture of dry mortar from burnt lime and additives
WO1999051538A1 (en) * 1998-04-07 1999-10-14 Hasit Trockenmörtel Gmbh & Co. Kg Method for producing a mortar resembling a mortar used for a historical structure, and suitable additive
CH690771A5 (en) * 1996-12-11 2001-01-15 Hks Hunziker Kalksandstein Ag Processing clay-containing mud to give dry, free-flowing powder useful as additive for building materials or as soil improver, by mixing the wet mud with quicklime
EP1367033A1 (en) * 2002-05-27 2003-12-03 Wilhelm Kreusch Filler containing cement and process for making this filler
GB2468588A (en) * 2009-03-11 2010-09-15 Lime Technology Ltd A process for producing a dry lime and aggregate mix

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19543121A1 (en) * 1995-11-18 1997-05-22 Georg Badum Manufacture of dry mortar from burnt lime and additives
CH690771A5 (en) * 1996-12-11 2001-01-15 Hks Hunziker Kalksandstein Ag Processing clay-containing mud to give dry, free-flowing powder useful as additive for building materials or as soil improver, by mixing the wet mud with quicklime
WO1999051538A1 (en) * 1998-04-07 1999-10-14 Hasit Trockenmörtel Gmbh & Co. Kg Method for producing a mortar resembling a mortar used for a historical structure, and suitable additive
EP1367033A1 (en) * 2002-05-27 2003-12-03 Wilhelm Kreusch Filler containing cement and process for making this filler
GB2468588A (en) * 2009-03-11 2010-09-15 Lime Technology Ltd A process for producing a dry lime and aggregate mix

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