DE936853C - Method and device for the production of mineral and slag wool - Google Patents
Method and device for the production of mineral and slag woolInfo
- Publication number
- DE936853C DE936853C DES26798A DES0026798A DE936853C DE 936853 C DE936853 C DE 936853C DE S26798 A DES26798 A DE S26798A DE S0026798 A DES0026798 A DE S0026798A DE 936853 C DE936853 C DE 936853C
- Authority
- DE
- Germany
- Prior art keywords
- slag
- length
- jet
- atomized
- slots
- 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
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B37/00—Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
- C03B37/01—Manufacture of glass fibres or filaments
- C03B37/06—Manufacture of glass fibres or filaments by blasting or blowing molten glass, e.g. for making staple fibres
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Geochemistry & Mineralogy (AREA)
- Manufacturing & Machinery (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Glanulating (AREA)
- Manufacture, Treatment Of Glass Fibers (AREA)
- Inorganic Fibers (AREA)
- Paper (AREA)
Description
Der Wert der Mineral- oder Schlackenwolle wird entscheidend von der Fadenlänge und dem Perlengehalt bestimmt. Bei dem wirtschaftlichsten und bedeutungsvollsten Herstellungsverfahren, dem Zerblasen des Schmelzflusses mit Hilfe von Preßgasen, ist — im Gegensatz zu den teuren Ziehverfahren — die Fadenlänge begrenzt, und es muß mit einem bestimmten Perlengehalt gerechnet werden. Man ist daher bestrebt gewesen, das Blaseverfahren so zu leiten, daß die Fäden möglichst lang und der Perlengehalt möglichst niedrig werden. Inbesondere bei Benutzung der aus dem Hochofen kommenden flüssigen Schlacke, bei der von Seiten der chemischen Zusammensetzung keine Verbesserungsmöglichkeit besteht, ist das genannte Problem bisher noch nicht gelöst worden.The value of the mineral or slag wool depends on the length of the thread and the pearl content certainly. In the most economical and meaningful manufacturing process, the Blowing up the melt flow with the help of compressed gases is - in contrast to the expensive drawing process - the thread length is limited and a certain pearl content must be expected. Efforts have therefore been made to direct the bubble process so that the threads are as long as possible and the Pearl content should be as low as possible. Especially when using the ones coming out of the blast furnace liquid slag in which there is no room for improvement in terms of chemical composition exists, the above problem has not yet been solved.
Die Erfindung geht von der Erkenntnis aus, daß bei allen praktisch benutzten Verfahren Blasdüsen, insbesondere in U- oder V-Form Anwendung gefunden haben, durch die das Zerstäubungsmittel auf den fallenden Strahl so aufgeblasen wurde, daß es diesen zerschlägt und dabei zerfasert und daß dieses Zerschlagen ausschlaggebend für die Bildung von Perlen und für das Entstehen im wesentlichen kurzer Fasern ist.The invention is based on the knowledge that in all methods used in practice, blowing nozzles, have found application in particular in U- or V-shape, through which the atomizing agent on the falling jet was inflated so that it smashed it and thereby frayed and that This smashing is decisive for the formation of pearls and essentially for their emergence short fibers.
Demgegenüber besteht die Erfindung darin, daß das Zerstäubungsmittel, z. B. Luft, auf einen senkrecht fallenden Strahl in Form von zwei breiten ebenen, zueinander parallelen Bändern an beiden Seiten des Gießstrahls im wesentlichen senkrecht zu dessen Fließrichtung in einer Länge desselben zur Einwirkung gebracht wird, die größer ist alsIn contrast, the invention consists in that the atomizing agent, for. B. air, on a perpendicular falling ray in the form of two broad, flat, parallel bands on both Sides of the pouring stream substantially perpendicular to its flow direction for a length thereof is brought to action which is greater than
seine doppelte Dicke, so daß von den Seiten Her ein allmähliches Abtragen des Gießstrahls und ein Ausziehen desselben zu Wolle erfolgt.its double thickness, so that from the sides a gradual removal of the pouring stream and a pulling out same to wool.
Es wird also durch die zielbewußte Schaffung zweier den Schlackenstrahl nur seitlich berührender Bänder des Zerstäubungsmittels dafür gesorgt, daß eine Zerschlagung des Schlackenstrahls praktisch nicht eintritt, sondern ein im wesentlichen durch Sog bewirktes Abtragen der Schlacke von derSo it is only laterally touching the slag stream through the purposeful creation of two Ribbons of atomizing means that a disruption of the slag stream is practical does not occur, but a removal of the slag from the essentially caused by suction
ίο Seite her auf einer längeren Strecke in Richtung des Schlackenstrahls, wobei außergewöhnlich lange Fasern mit einem Mindestmaß an Perlenbildung entstehen.ίο Sideways on a longer stretch in the direction of the slag jet, with exceptionally long fibers with a minimum of beading develop.
Kennzeichnend für die Erfindung ist also eine tangentiale Heranführung des Zerstäubungsmittels an den Schlackenstrahl unter einem solchen Druck, von z. B. 5 atü, daß die Fäden durch Sog entstehen. Die Länge der Einwirkungszone des Zerstäubungsmittels beträgt zweckmäßig das 8- bis i2fache der Schlackenstrahldicke. Die Länge kann so groß gewählt werden, daß entweder bis zu ihrem Ende die ganze Schlacke des Strahles zerstäubt ist oder aber nur ein Teil. Im letzteren Falle läuft dann der restliche Teil in eine Pfanne ab. Das erfindungsgemäße Verfahren kann Anwendung finden, wenn man lediglich einen einzigen Schlackenstrahl zerstäubt; es kann aber auch Anwendung finden, wenn aus einer geeigneten Vorrichtung in an sich bekannter Weise mehrere Schlackenstrahlen ausfließen.Characteristic of the invention is therefore a tangential approach of the atomizing agent to the slag stream under such pressure, from e.g. B. 5 atü that the threads are created by suction. The length of the zone of action of the atomizing agent is expediently 8 to 12 times the slag jet thickness. The length can be chosen so that either up to its end all or only part of the slag of the jet is atomized. In the latter case then runs the remaining part in a pan. The method according to the invention can be used find if one only atomizes a single stream of slag; but it can also be used find, if several from a suitable device in a known manner Slag streams flow out.
Ein besonderer Vorzug des Verfahrens besteht darin, daß es auch hochwertigste Fasern ergibt, wenn unmittelbar vom Hochofen kommende Schlacke zerstäubt werden soll.A particular advantage of the process is that it also produces the highest quality fibers, if slag coming directly from the blast furnace is to be atomized.
Zur Ausführung des Verfahrens dient eine Vorrichtung,, die durch zwei vorzugsweise parallel zueinander in Abstand liegende Schlitze für den Austritt des Zerstäubungsmittels gekennzeichnet ist. Die Schlitzlänge beträgt mindestens das iofache ihrer Breite; als Beispiel sei eine Schlitzbreite von 2 mm bei einer Länge von ioo mm angegeben. Zwischen den Schlitzen ist eine breite Luftdurchtrittsöffnung vorgesehen, damit die Bänder des Zerstäubungsmittels auch die gewünschte Form besitzen und in der angegebenen Weise an den Schlackenstrahl herantreten. Wenn die Zerstäubungsvorrichtung U-Form besitzt, sind die Schlitze lediglich in den Schenkeln, vorgesehen; dadurch unterscheidet sich diese Düsenanordnung grundsätzlich von den bekannten U-Düsen, Falls mehrere Schlackenstrahlen beeinflußt werden sollen, sind in der Vorrichtung mehrere Schlitzgruppen in Abstand voneinander vorgesehen.A device is used to carry out the method, which is characterized by two slots, which are preferably parallel and spaced from one another, for the exit of the atomizing agent. The length of the slot is at least 10 times its width; As an example, a slot width of 2 mm with a length of 100 mm is given. A wide air passage opening is provided between the slots so that the bands of the atomizing agent also have the desired shape and approach the slag jet in the specified manner. If the atomizing device has a U-shape, the slots are only provided in the legs; in this way this nozzle arrangement differs fundamentally from the known U-nozzles. If several slag jets are to be influenced, several groups of slots are provided in the device at a distance from one another.
In der Zeichnung ist die Vorrichtung schematisch -dargestellt und der Zerstäubungsvo-rgang angedeutet. In the drawing, the device is shown schematically and the atomization process is indicated.
Das Preßgas tritt durch das Rohr ι in die gabelförmig ausgebildete Zerblasedüse 2 ein. Der Austritt der Gase erfolgt aus den beiden Schlitzen 3. Diese sind parallel oder annähernd parallel angeordnet. Die Schlitzbreite ist über die Länge gleich oder annähernd gleich. In der Aussparung 4 der Düse entsteht ein starker Sog, der bandförmig ausgebreitet ist, entsprechend der Länge der Schlitze 3. In dieses Sogband fließt der Schlackenstrahl 5 ein, z. B. vor der die Schlitze enthaltenden Seite der Zerblasedüse. Von dem Gießstrahl wird beim Durchfallen des Sogbandes seitlich der Schmelzfluß abgetragen und zu Wolle ausgezogen. Da die Fäden mit dem einen Ende am Flüssigkeitsstrahl haftenbleiben, entstehen lange Fasern mit nur sehr wenig Granalien.The compressed gas enters the fork-shaped tube through the tube trained blowing nozzle 2 a. The gases exit from the two slots 3. These are arranged in parallel or approximately in parallel. The slot width is the same over the length or approximately the same. A strong suction is created in the recess 4 of the nozzle, which is spread out in the form of a band is, corresponding to the length of the slots 3. The slag jet 5 flows into this suction belt, z. B. in front of the side of the blowing nozzle containing the slots. From the pouring stream is at If the suction band falls through the side, the melt flow is removed and drawn out into wool. Since the If threads stick to one end of the liquid jet, long fibers are created with only very long little granules.
Bei Verwendung einer Düse der oben angegebenen Art und Preßluft von S atü ergaben sich aus einem Hochofenschlackenstrahl von 10 mm Dicke Fadenlängen bis 100 cm bei einem Perlengehalt von 3%.Using a nozzle of the type indicated above and compressed air from S atü resulted from a blast furnace slag jet 10 mm thick, thread lengths up to 100 cm with a pearl content Of 3%.
Claims (14)
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL84476D NL84476C (en) | 1952-01-14 | ||
LU31460D LU31460A1 (en) | 1952-01-14 | ||
BE511600D BE511600A (en) | 1952-01-14 | ||
DES26798A DE936853C (en) | 1952-01-14 | 1952-01-14 | Method and device for the production of mineral and slag wool |
DES27944A DE958454C (en) | 1952-01-14 | 1952-04-02 | Device for the production of slag wool |
GB12451/52A GB701886A (en) | 1952-01-14 | 1952-05-16 | Process and apparatus for the production of mineral and slag wool |
FR1056632D FR1056632A (en) | 1952-01-14 | 1952-05-16 | Method and apparatus for manufacturing mineral wool or slag wool |
US314767A US2810158A (en) | 1952-01-14 | 1952-10-15 | Process and apparatus for the production of mineral and slag wool |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DES26798A DE936853C (en) | 1952-01-14 | 1952-01-14 | Method and device for the production of mineral and slag wool |
DES27944A DE958454C (en) | 1952-01-14 | 1952-04-02 | Device for the production of slag wool |
Publications (1)
Publication Number | Publication Date |
---|---|
DE936853C true DE936853C (en) | 1955-12-29 |
Family
ID=25995005
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DES26798A Expired DE936853C (en) | 1952-01-14 | 1952-01-14 | Method and device for the production of mineral and slag wool |
DES27944A Expired DE958454C (en) | 1952-01-14 | 1952-04-02 | Device for the production of slag wool |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DES27944A Expired DE958454C (en) | 1952-01-14 | 1952-04-02 | Device for the production of slag wool |
Country Status (7)
Country | Link |
---|---|
US (1) | US2810158A (en) |
BE (1) | BE511600A (en) |
DE (2) | DE936853C (en) |
FR (1) | FR1056632A (en) |
GB (1) | GB701886A (en) |
LU (1) | LU31460A1 (en) |
NL (1) | NL84476C (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3197295A (en) * | 1960-09-27 | 1965-07-27 | Johns Manville | Method for forming siliceous fibers |
US4497644A (en) * | 1983-09-12 | 1985-02-05 | Owens-Corning Fiberglas Corporation | Blower for the attenuation of fibers |
Citations (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1650136A (en) * | 1927-11-22 | Means for blowing mineral wool | ||
FR756092A (en) * | 1933-05-24 | 1933-12-04 | Hauts Fourneaux De Saulnes Soc | Devices for the manufacture of mineral wool and in particular slag wool |
US1977406A (en) * | 1931-05-19 | 1934-10-16 | Johns Manville | Fluid-jet nozzle for blowing mineral wool |
US2126411A (en) * | 1934-04-17 | 1938-08-09 | Johns Manville | Method for making mineral wool |
US2136158A (en) * | 1937-02-02 | 1938-11-08 | Standard Lime And Stone Compan | Method of blowing meineral wool |
DE682858C (en) * | 1938-04-16 | 1939-10-24 | Eisenwerke Akt Ges Deutsche | Process for the disintegration of liquid, particularly molten substances, by means of a disintegration agent acting on the outflowing material jet |
DE705127C (en) * | 1939-11-15 | 1941-04-18 | Eisenwerke Akt Ges Deutsche | Process for blowing molten substances, such as in particular minerals, glass, slag or the like, into wool by means of a blowing pressure medium |
DE704752C (en) * | 1939-01-01 | 1941-04-22 | Lambert Jansen | Process for separating the fibers from the droplets in the manufacture of mineral fibers |
DE707934C (en) * | 1939-11-16 | 1941-07-08 | Eisenwerke Akt Ges Deutsche | Method and device for defibrating liquid substances by means of a blowing pressure medium, such as in particular for producing slag wool, mineral wool or glass wool |
US2255206A (en) * | 1938-07-13 | 1941-09-09 | United States Gypsum Co | Apparatus for providing uniformly graded fibrous materials |
DE713702C (en) * | 1938-05-24 | 1941-11-13 | Algemeene Kunstvezel Mij N V | Container for holding molten glass |
DE722886C (en) * | 1941-04-08 | 1942-07-23 | Fritz Muthmann | Device for the production of slag and mineral wool by means of steam or compressed air jets |
DE724264C (en) * | 1938-01-11 | 1942-08-21 | Hein & Co Vormals Haigerer Hue | Process for generating a pressure medium jet intended for blowing molten substances for the purpose of extracting slag wool, rock wool or the like. |
DE748956C (en) * | 1942-10-10 | 1944-11-11 | Process and device for the production of mineral wool by compressed air defibration |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US299111A (en) * | 1884-05-27 | Process of and apparatus | ||
US436244A (en) * | 1890-09-09 | Method of and apparatus for the production of mineral wool | ||
US721293A (en) * | 1901-10-28 | 1903-02-24 | Baer Brothers | Apparatus for the disintegration of metal. |
US1245328A (en) * | 1916-09-06 | 1917-11-06 | Wood Freeman | Method and apparatus for pulverizing molten materials. |
US2308584A (en) * | 1940-08-03 | 1943-01-19 | New Jersey Zinc Co | Production of metal powder |
US2330038A (en) * | 1940-10-14 | 1943-09-21 | John F Ervin | Method and means of disintegrating metal into abrasive material |
DE848990C (en) * | 1942-01-09 | 1952-09-11 | Gruenzweig & Hartmann G M B H | Device and method for producing mineral wool |
-
0
- BE BE511600D patent/BE511600A/xx unknown
- NL NL84476D patent/NL84476C/xx active
- LU LU31460D patent/LU31460A1/xx unknown
-
1952
- 1952-01-14 DE DES26798A patent/DE936853C/en not_active Expired
- 1952-04-02 DE DES27944A patent/DE958454C/en not_active Expired
- 1952-05-16 FR FR1056632D patent/FR1056632A/en not_active Expired
- 1952-05-16 GB GB12451/52A patent/GB701886A/en not_active Expired
- 1952-10-15 US US314767A patent/US2810158A/en not_active Expired - Lifetime
Patent Citations (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1650136A (en) * | 1927-11-22 | Means for blowing mineral wool | ||
US1977406A (en) * | 1931-05-19 | 1934-10-16 | Johns Manville | Fluid-jet nozzle for blowing mineral wool |
FR756092A (en) * | 1933-05-24 | 1933-12-04 | Hauts Fourneaux De Saulnes Soc | Devices for the manufacture of mineral wool and in particular slag wool |
US2126411A (en) * | 1934-04-17 | 1938-08-09 | Johns Manville | Method for making mineral wool |
US2136158A (en) * | 1937-02-02 | 1938-11-08 | Standard Lime And Stone Compan | Method of blowing meineral wool |
DE724264C (en) * | 1938-01-11 | 1942-08-21 | Hein & Co Vormals Haigerer Hue | Process for generating a pressure medium jet intended for blowing molten substances for the purpose of extracting slag wool, rock wool or the like. |
DE682858C (en) * | 1938-04-16 | 1939-10-24 | Eisenwerke Akt Ges Deutsche | Process for the disintegration of liquid, particularly molten substances, by means of a disintegration agent acting on the outflowing material jet |
DE713702C (en) * | 1938-05-24 | 1941-11-13 | Algemeene Kunstvezel Mij N V | Container for holding molten glass |
US2255206A (en) * | 1938-07-13 | 1941-09-09 | United States Gypsum Co | Apparatus for providing uniformly graded fibrous materials |
DE704752C (en) * | 1939-01-01 | 1941-04-22 | Lambert Jansen | Process for separating the fibers from the droplets in the manufacture of mineral fibers |
DE705127C (en) * | 1939-11-15 | 1941-04-18 | Eisenwerke Akt Ges Deutsche | Process for blowing molten substances, such as in particular minerals, glass, slag or the like, into wool by means of a blowing pressure medium |
DE707934C (en) * | 1939-11-16 | 1941-07-08 | Eisenwerke Akt Ges Deutsche | Method and device for defibrating liquid substances by means of a blowing pressure medium, such as in particular for producing slag wool, mineral wool or glass wool |
DE722886C (en) * | 1941-04-08 | 1942-07-23 | Fritz Muthmann | Device for the production of slag and mineral wool by means of steam or compressed air jets |
DE748956C (en) * | 1942-10-10 | 1944-11-11 | Process and device for the production of mineral wool by compressed air defibration |
Also Published As
Publication number | Publication date |
---|---|
FR1056632A (en) | 1954-03-01 |
LU31460A1 (en) | |
BE511600A (en) | |
US2810158A (en) | 1957-10-22 |
NL84476C (en) | |
GB701886A (en) | 1954-01-06 |
DE958454C (en) | 1957-02-21 |
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