DE380814C - Process for the production of building blocks from lignite ash - Google Patents

Process for the production of building blocks from lignite ash

Info

Publication number
DE380814C
DE380814C DEF51963D DEF0051963D DE380814C DE 380814 C DE380814 C DE 380814C DE F51963 D DEF51963 D DE F51963D DE F0051963 D DEF0051963 D DE F0051963D DE 380814 C DE380814 C DE 380814C
Authority
DE
Germany
Prior art keywords
water
ash
stones
production
building blocks
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
DEF51963D
Other languages
German (de)
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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 DEF51963D priority Critical patent/DE380814C/en
Application granted granted Critical
Publication of DE380814C publication Critical patent/DE380814C/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
    • C04B28/24—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 alkyl, ammonium or metal silicates; containing silica sols
    • C04B28/26—Silicates of the alkali metals
    • 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
    • C04B28/021—Ash cements, e.g. fly ash cements ; Cements based on incineration residues, e.g. alkali-activated slags from waste incineration ; Kiln dust cements
    • 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
    • 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

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)
  • Combustion & Propulsion (AREA)
  • Processing Of Solid Wastes (AREA)

Description

Verfahren zur Herstellung von Bausteinen aus Braunkohlenasche. Aus Braunkohlenasche. sind schon früher Bausteine hergestellt worden, indem man den Gehalt der Braunkohlenasche an Ätzkalk durch Ablöschen derselben hydratisiert und als Bindemittel nutzbar macht. Man erhält dabei Steine, die den Schwemmsteinen ähnlich sind und. sich insbesondere zur Herstellung von Zwischenwänden eignen.Process for the production of building blocks from lignite ash. the end Lignite ash. building blocks have been made before by using the Quick lime content of lignite ash is hydrated and hydrated by quenching the same makes usable as a binding agent. You get stones that are similar to alluvial stones are and. are particularly suitable for the production of partition walls.

Gemäß der Erfindung lassen sich aus Braunkohlenasche Steine wesentlich höherer Festigkeit herstellen, die auch als Ersatz von Ziegelsteinen sowie als Plattenbelag usw. verwendet werden können.According to the invention, bricks can be made from lignite ash Produce higher strength, which can also be used as a replacement for bricks and as paving etc. can be used.

Dieses Herstellungsverfahren beruht auf der Erkenntnis, daß in gut ausgebrannter Braunkohlenasche aus technischen Feuerungen immer in erheblichem Umfange Estrichgips vorhanden ist, der sonst durch Brennen über i ooo° hergestellt wird, und der wertvolle Nförteleigenschaften besizt.This manufacturing process is based on the knowledge that in good Burned-out lignite ash from technical furnaces always in considerable quantities Screed plaster is available, which is otherwise produced by firing over i ooo °, and the valuable Nförtel properties possessed.

Eine typische rheinische Braunkohlenasche hat z. B. einen Gehalt von I o bis 12 Prozent an solchem Gips. Bei dem oben angegebenen älteren, in der deutschen Patentschrift 221871 beschriebenen Verfahren geht das Abbindevermögen dieses Gipses durch das Ablöschen und Lagern des Aschenbreies verloren.A typical Rhenish lignite ash has z. B. a salary of 10 to 12 percent of such plaster of paris. In the case of the older one mentioned above, in the German The method described in patent specification 221871 is the setting capacity of this plaster of paris lost by quenching and storing the ash pulp.

Indem man nun diesen Estrichgips bei der Fabrikation der Steine zum Verkitten der Aschenteile mitbenutzt, wird die Festigkeit der Steine in erheblichen Maße gesteigert.By now using this plaster of paris for the manufacture of the stones If the ash parts are also cemented, the strength of the stones is considerable Dimensions increased.

Es geschieht dies dadurch, daß die trockene Braunkohlenasche trocken gehalten und erst kurz vor der Formung nur mit so viel Wasser angefeuchtet wird, als erforderlich ist, um zu verhüten, daß die unter starkem Druck erzeugten Formlinge auseinanderfallen. Der Wasserzusatz beschränkt sich in der Praxis auf. etwa 2o Prozent. Er wechselt mit der Korngröße der zu pressenden Asche.It does this because the dry lignite ash is dry held and only moistened with so much water just before molding, than is necessary to prevent the moldings produced under strong pressure fall apart. In practice, the addition of water is limited to. about 20 percent. It changes with the grain size of the ash to be pressed.

Der Wasserzusatz ermöglicht ein teilweises Abbinden der in der Asche vorhandenen Bindemittel, was sich durch Erwärmung der Steine kundgibt, und gibt den Steinen so viel Halt, daß sie transportfähig werden. Der völlige Abbindevorgang wird dann durch feuchte Lagerung hervorgerufen: indem die Preßlinge kurze Zeit in Wasser gelegt oder mit Wasser berieselt werden, bis sie sich vollgesogen haben, wobei man nach der Trocknung diese Maßnahme gegebenenfalls wiederholt.The addition of water enables the ashes to partially set existing binding agent, which manifests itself by heating the stones, and gives the stones so much hold that they can be transported. The complete setting process is then caused by moist storage: by the compacts for a short time in Put in water or sprinkled with water until they are soaked, this measure being repeated if necessary after drying.

Durch dieses Verfahren wird das Abbindevermögen sämtlicher Gipsteilchen voll ausgenutzt.This process increases the setting capacity of all gypsum particles fully exploited.

Der so erzeugte Stein hat die Festigkeit gewöhnlicher Ziegel. Seine Härte und Festigkeit läßt sich aber bis zu derjenigen von Klinkern steigern, wenn man dem abbindenden Wasser lösliches Alkalisilikat zusetzt. Benierkenswerterweise genügen bei Braunkohlenaschensteinen ganz geringe Mengen, und zwar ist ein Gehalt des Wassers an I bis 2 Prozent löslichem Silikat ausreichend.The stone produced in this way has the strength of ordinary bricks. His Hardness and strength can be increased up to that of clinker if soluble alkali silicate is added to the setting water. Noteworthy In the case of lignite ash stones, very small quantities are sufficient, namely one content of the water in 1 to 2 percent soluble silicate is sufficient.

Der Verbrauch an Silikat ist daher so gering, daß er durch die Wertsteigerung der Erzeugnisse ausgeglichen wird. Der so gewonnene Klinkerersatz hat deshalb infolge seiner Wohlfeilheit wirtschaftliche Bedeutung.The consumption of silicate is therefore so low that it is due to the increase in value the Products is balanced. The clinker substitute obtained in this way therefore has economic importance due to its cheapness.

Claims (1)

PATENT-ANsPRÜ cfIE: r. Verfahren zur Herstellung von Bausteinen aus Braunkohlenasche durch Anfeuchten, Formen und Trocknen derselben, dadurch gekennzeichnet, daß die Braunkohlenasche trockengehalten und zur Anfeuchtung mit so viel Wasser benetzt wird, als zur Erzeugung haltbarer Formlinge erforderlich ist, und daß die Herstellung der Formlinge ohne vorherige Lagerung des Aschenbreies im unmittelbaren Anschluß an die Anfeuchtung erfolgt, worauf die Steine durch feuchte Lagerung (Eintauchen in Wasser oder Berieseln mit Wasser) erhärten und zu festen Steinen abbinden. ?. Verfahren nach Anspruch r, dadurch gekennzeichnet, daß zur Erzielung besonders harter Steine dem Abbindewasser wenige Prozent Alkalisilikat zugesetzt werden.PATENT CLAIM: r. Method of making building blocks from Lignite ash by moistening, shaping and drying the same, characterized in that that the lignite ash was kept dry and to be moistened with as much water is wetted than is required to produce durable moldings, and that the Production of the moldings without prior storage of the ash slurry in the immediate vicinity Connection to the moistening takes place, whereupon the stones by moist storage (immersion in water or sprinkling with water) harden and set to solid stones. ?. Method according to claim r, characterized in that to achieve particularly hard Stones are added a few percent alkali silicate to the setting water.
DEF51963D 1922-06-08 1922-06-08 Process for the production of building blocks from lignite ash Expired DE380814C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEF51963D DE380814C (en) 1922-06-08 1922-06-08 Process for the production of building blocks from lignite ash

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEF51963D DE380814C (en) 1922-06-08 1922-06-08 Process for the production of building blocks from lignite ash

Publications (1)

Publication Number Publication Date
DE380814C true DE380814C (en) 1923-09-12

Family

ID=7105058

Family Applications (1)

Application Number Title Priority Date Filing Date
DEF51963D Expired DE380814C (en) 1922-06-08 1922-06-08 Process for the production of building blocks from lignite ash

Country Status (1)

Country Link
DE (1) DE380814C (en)

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