DE3627283A1 - Method for ultrafine grinding of materials, preferably cement powder - Google Patents

Method for ultrafine grinding of materials, preferably cement powder

Info

Publication number
DE3627283A1
DE3627283A1 DE19863627283 DE3627283A DE3627283A1 DE 3627283 A1 DE3627283 A1 DE 3627283A1 DE 19863627283 DE19863627283 DE 19863627283 DE 3627283 A DE3627283 A DE 3627283A DE 3627283 A1 DE3627283 A1 DE 3627283A1
Authority
DE
Germany
Prior art keywords
mill
mills
cement powder
cclf
lock
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.)
Withdrawn
Application number
DE19863627283
Other languages
German (de)
Inventor
Artur Richard Greul
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 DE19863627283 priority Critical patent/DE3627283A1/en
Publication of DE3627283A1 publication Critical patent/DE3627283A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
    • B02C23/06—Selection or use of additives to aid disintegrating
    • 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
    • C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
    • C04B24/005—Halogen-containing compounds
    • 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
    • C04B7/36—Manufacture of hydraulic cements in general
    • C04B7/48—Clinker treatment
    • C04B7/52—Grinding ; After-treatment of ground cement
    • C04B7/527—Grinding ; After-treatment of ground cement obtaining cements characterised by fineness, e.g. by multi-modal particle size distribution

Abstract

Ultrafine grinding of materials, preferably cement powder as a mixture with fluorocarbons in the liquid phase under pressure, in a mill, preferably a plurality of planetary mills arranged one behind the other.

Description

Das Mahlen von Stoffen vorzugsweise Zement und dessen Fein­ mahlung in Rohr- oder Kugelmühlen ist bekannt. Das Pro­ dukt dieser Mahlung ist ein Zementmehl mit einer Korn­ größe von 0 bis ca. 200 My, was aber für verschiedene Zwe­ cke nicht genügt. Beispielsweise wird für einen Polymer- Zement oder auch MDF-Zement (Macro defektfree cement) eine Korngröße bis höchstens 10 My benötigt.The grinding of materials preferably cement and its fine Grinding in tube or ball mills is known. The pro product of this grinding is a cement flour with a grain size from 0 to approx. 200 my, but what for different branches not enough. For example, for a polymer Cement or MDF cement (macro defective free cement) a grain size of up to 10 My is required.

Aufgabe der Erfindung ist ein Verfahren zur Ultrafeinmah­ lung von Stoffen, vorzugsweise das Nachmahlen von Zement­ mehl auch in großen Mengen.The object of the invention is a method for ultrafine mowing treatment of substances, preferably the re-grinding of cement flour in large quantities.

Gelöst wird diese Aufgabe dadurch, daß ein chemischer Arbeitsstoff mit niedrigem Siedepunkt und großer chemi­ scher Stabilität, vorzugsweise Fluorkohlenwasserstoff, mit seinen Abkömmlingen des Methans und des Äthans, wie z. B. CCLF2-CClf2, auch unter Bezeichnung Frigen 114 be­ kannt (Siedetemperatur 3,6°C) einer Mischeinrichtung, z. B. einer geschlossenen Mischschnecke mit einem Druck von ca. 5 Bar in der Flüssigphase mit dem ultrafeinzumahlenden Stoff, vorzugsweise Zementmehl (Kalzium-Aluminaten und -Silikaten), welcher durch eine Schleuse eingetragen wird, vermischt und das pasteuse Gemenge einer Mühle, vor­ zugsweise einer Planetenmühle, wobei mindestens zwei Pla­ netenmühlen hintereinander angeordnet sein sollten, zuge­ führt und in der Mühlenkaskade auf weniger als 10 Mikron gemahlen wird, wobei in den Mühlen durch Kühlung die Tem­ peratur unter 50°C gehalten oder der Druck erhöht werden muß. This object is achieved in that a chemical agent with a low boiling point and high chemical stability, preferably fluorocarbon, with its derivatives of methane and ethane, such as. B. CCLF 2 -CClf 2 , also known as Frigen 114 be known (boiling point 3.6 ° C) of a mixing device, for. B. a closed mixing screw with a pressure of about 5 bar in the liquid phase with the ultra-fine material, preferably cement flour (calcium aluminates and silicates), which is fed through a lock, mixed and the paste mixture of a mill, preferably one Planetary mill, with at least two planetary mills should be arranged one behind the other, leads and is ground in the mill cascade to less than 10 microns, the temperature in the mills being kept below 50 ° C. by cooling or the pressure having to be increased.

Nach Durchlaufen der Mühlen wird das Mahlgut durch eine Schleuse ausgetragen und entspannt, wobei auch ein Phasen­ wechsel des FKW stattfindet und der nun gasförmige Fluor­ kohlenwasserstoff wieder von einem Verdichter angesaugt und an den Anfang des Verfahrens zurückgeführt wird, während der entstandende Zementpuder einer Sichtung unter­ worfen und das Überkorn (über 10 My) dem Eingangsmaterial wieder zugeschlagen wird. After passing through the mills, the regrind is replaced by a Lock carried out and relaxed, also a phase change of the HFC takes place and the now gaseous fluorine hydrocarbon sucked in again by a compressor and going back to the beginning of the process during the resulting cement powder a sighting throw and oversize (over 10 my) the input material is struck again.

Der Vorteil dieses Verfahrens liegt in der Naßmahlung ohne Wasser, die besonders wirkungsvoll und energiesparend ist. Außerdem wird die Verschleißrate der Planeten stark redu­ ziert, während das Zementmehl keinerlei Reaktion mit dem FKW eingeht und nach der Entspannung trocken fällt.The advantage of this process lies in the wet grinding without Water that is particularly effective and energy-saving. In addition, the planet's wear rate is greatly reduced adorns, while the cement flour has no reaction with the HFC enters and falls dry after relaxation.

Ultrafeinmahlung von Stoffen, vorzugsweise Zementmehl als Mischung mit FKW in der Flüssigphase unter Druck, in einer Mühle, vorzugsweise mehrerer hintereinander geschalteten Planetenmühlen.Ultrafine grinding of materials, preferably cement flour as Mixing with HFC in the liquid phase under pressure, in one Mill, preferably several in series Planetary mills.

Claims (1)

1. Verfahren zur Ultrafeinmahlung von Stoffen vorzugs­ weise Zementmehl, dadurch gekennzeich­ net, daß ein chemischer Arbeitsstoff mit nied­ rigem Siedepunkt und großer chemischer Stabilität, vorzugsweise Fluorkohlenwasserstoff, mit seinen Ab­ kömmlingen des Methans und des Äthans, wie z. B. CCLF2-CCLF2, auch unter der Bezeichnung Frigen 114 bekant (Siedetemperatur 3.6°C) einer Mischeinrich­ tung, z. B. einer geschlossenen Mischschnecke mit ei­ nem Druck von ca. 5 Bar in der Flüssigphase mit dem ultrafeinzumahlenden Stoff, vorzugsweise Zementmehl (Kalzium-Aluminaten und -Silikaten), welcher durch eine Schleuse eingetragen wird, vermischt und das pasteuse Gemenge einer Mühle, vorzugsweise einer Planetenmühle, wobei mindestens zwei Planetenmüh­ len hintereinander angeordnet sein sollten, zuge­ führt und in der Mühlenkaskade auf weniger als 10 Mikron gemahlen wird, wobei in den Mühlen durch Küh­ lung die Temperatur unter 50°C gehalten oder der Druck erhöht werden muß. Nach Durchlaufen der Mühlen wird das Mahlgut durch eine Schleuse ausgetragen und ent­ spannt, wobei auch ein Phasenwechsel des FKW statt­ findet und der nun gasförmige Fluorkohlenwasserstoff wieder von einem Verdichter angesaugt und an den An­ fang des Verfahrens zurückgeführt wird, während der entstandene Zementpuder einer Sichtung unterworfen und das Überkorn (über 10 My) dem Eingangsmaterial wieder zugeschlagen wird.1. A method for ultra-fine grinding of cement powder, characterized in that a chemical agent with a low boiling point and great chemical stability, preferably fluorocarbon, with its comers from methane and ethane, such as. B. CCLF 2 -CCLF 2 , also known under the name Frigen 114 (boiling point 3.6 ° C) a mixing device, z. B. a closed mixing screw with egg nem pressure of about 5 bar in the liquid phase with the ultra-fine material, preferably cement flour (calcium aluminates and silicates), which is fed through a lock, mixed and the paste mixture of a mill, preferably one Planetary mill, whereby at least two planetary mills should be arranged one behind the other, fed and ground in the mill cascade to less than 10 microns, the temperature in the mills being kept below 50 ° C. by cooling or the pressure having to be increased. After passing through the mills, the regrind is discharged through a lock and ent, whereby a phase change of the HFC takes place and the now gaseous fluorocarbon is sucked in again by a compressor and returned to the beginning of the process, while the resulting cement powder is subjected to a screening and the oversize (over 10 my) is added to the input material.
DE19863627283 1986-08-12 1986-08-12 Method for ultrafine grinding of materials, preferably cement powder Withdrawn DE3627283A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19863627283 DE3627283A1 (en) 1986-08-12 1986-08-12 Method for ultrafine grinding of materials, preferably cement powder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19863627283 DE3627283A1 (en) 1986-08-12 1986-08-12 Method for ultrafine grinding of materials, preferably cement powder

Publications (1)

Publication Number Publication Date
DE3627283A1 true DE3627283A1 (en) 1988-02-18

Family

ID=6307203

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19863627283 Withdrawn DE3627283A1 (en) 1986-08-12 1986-08-12 Method for ultrafine grinding of materials, preferably cement powder

Country Status (1)

Country Link
DE (1) DE3627283A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0437324A2 (en) * 1990-01-09 1991-07-17 Shimizu Construction Co., Ltd. Cement and production thereof and concrete made therefrom
DE4000794A1 (en) * 1990-01-12 1991-07-18 Krupp Polysius Ag Grinding of brittle material between two rollers - mixes material with granular material of small grain size to prevent roller vibration
WO2000003806A1 (en) * 1998-07-17 2000-01-27 Reiner Weichert Method and device for milling and mixing solid materials in an ultra-fine manner
WO2009030758A1 (en) * 2007-09-05 2009-03-12 Epg (Engineered Nanoproducts Germany) Ag Hyper-fine cement

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0437324A2 (en) * 1990-01-09 1991-07-17 Shimizu Construction Co., Ltd. Cement and production thereof and concrete made therefrom
EP0437324A3 (en) * 1990-01-09 1993-03-10 Shimizu Construction Co., Ltd. Cement and production thereof and concrete made therefrom
DE4000794A1 (en) * 1990-01-12 1991-07-18 Krupp Polysius Ag Grinding of brittle material between two rollers - mixes material with granular material of small grain size to prevent roller vibration
WO2000003806A1 (en) * 1998-07-17 2000-01-27 Reiner Weichert Method and device for milling and mixing solid materials in an ultra-fine manner
US6520837B2 (en) 1998-07-17 2003-02-18 Reiner Weichert Method and apparatus for ultrafine grinding and/or mixing of solid particles
WO2009030758A1 (en) * 2007-09-05 2009-03-12 Epg (Engineered Nanoproducts Germany) Ag Hyper-fine cement
US8226879B2 (en) 2007-09-05 2012-07-24 Epg (Engineered Nanoproducts Germany) Ag Hyper-fine cement
EP2508495A1 (en) * 2007-09-05 2012-10-10 EPG (Engineered nanoProducts Germany) AG Method for sealing or fixing porous bodies, stones or porous formations with extremely fine cement

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