DE913729C - Process for granulating metals and slag - Google Patents
Process for granulating metals and slagInfo
- Publication number
- DE913729C DE913729C DER2718D DER0002718D DE913729C DE 913729 C DE913729 C DE 913729C DE R2718 D DER2718 D DE R2718D DE R0002718 D DER0002718 D DE R0002718D DE 913729 C DE913729 C DE 913729C
- Authority
- DE
- Germany
- Prior art keywords
- water
- slag
- cooled
- shaking
- granulating
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/02—Making metallic powder or suspensions thereof using physical processes
- B22F9/06—Making metallic powder or suspensions thereof using physical processes starting from liquid material
- B22F9/08—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F2999/00—Aspects linked to processes or compositions used in powder metallurgy
Description
Das Granulieren, von Roheisen mit Hilfe von Wasser ist schwierig durchzuführen und hat sich deshalb nur vereinzelt durchsetzen können. So werden beispielsweise in Hochofenbetrrieben fast ausschließlich Masselgießmasch'venen verwendet. Das Versagen des Granulierens von Roheisen in der bisher bekannten Weise liegt vor allem in dem hohen; Wärmeinhalt des Roheisens und der damit verbundenen Überhitzung des zur Kühlung benutzten Wassers. begründet. Die Überhitzung kann mitunter solche Ausmaße annehmen, daß sich Knallgas bildet, das. zu heftigen und gefährlichen Explosionen führt. Dies gilt auch für das bekannte Schleudern des flüssigen Metalls auf sich schnell drehenden, gekühlten Scheiben, von denen, das Gut in zerteilter Form unter Schleuderwirkung ib einen Wasserbehälter gelangt.Granulating pig iron with the help of water is difficult to carry out and has therefore only been able to assert itself in isolated cases. For example In blast furnace operations, ingot casting machine veins are used almost exclusively. The Failure the granulation of pig iron in the previously known manner is mainly in that high; Heat content of the pig iron and the associated overheating of the cooling system used water. justified. The overheating can sometimes reach such proportions that oxyhydrogen is formed, which leads to violent and dangerous explosions. this also applies to the well-known hurling of liquid metal on rapidly rotating, chilled slices, of which the material is cut up under centrifugal action ib enters a water tank.
Zur Vermeidung dieses Übelstandes wird erfin.-dungsgemäß vorgeschlagen, das flüssige Gut unter gleichzeitiger Kühlung durch eine rüttelnde und/ oder schwingende Bewegung ineinzelneteigförmige Teilchen zu zerstäuben, die in Wasser vollständig abgekühlt werden.To avoid this inconvenience, it is proposed according to the invention, the liquid material with simultaneous cooling by a shaking and / or vibrating one Movement into individual dough-shaped particles to atomize that in water completely be cooled down.
Zur Durchführung dieses Verfahrens eignet sich eine allseitig gekühlte, schwenkbar gelagerte Transportrinne, welche beispielsweise durch einen Vibrator in rüttelnde oder schwingende Bewegung versetzt wird. Wird das Gut in dünnem Strahl auf die Rinne geleert, so wird. es durch die Rüttelbewegung in tropfen:förmige Gebilde zerrissen. und infolge der hierdurch erzielten Oberflächenvergrößerung des Gutes bereits auf der Rinne so weit abgekühlt, daß die Teillchen in festen oder zumindest teigförmigen Zustand übergehen, der es nun mehr gestattet, das zerstäubte Gut durch. Bespritzen mit Wasser vollkommen abzukühlen. Voraussetzung hierbei ist es., daß die Transportrinne. eine solche Länge besitzt, daß der teigförmige Zustand des Gutes erreicht wird, solange es auf der Rinne hezabgleitet.An all-round cooled, pivotally mounted transport chute, which can be driven, for example, by a vibrator is set in shaking or swaying motion. Will the good in a thin stream emptied onto the gutter. by shaking it into drops: shaped structures torn. and as a result of the increased surface area of the goods already cooled so far on the gutter that the particles in solid or at least Pass through the dough-like state, which now allows the atomized material to pass through. Splash with water to cool completely. The prerequisite here is that the transport channel. has such a length that the dough-like state of the goods is achieved as long as it slides on the gutter.
In der -Zeichnung sind eine Vorrichtung und eine Anlage zur Durchführung des Verfahrens dargestellt. Abb. r ist eint Querschnitt nach: A-A cler Abb. z.In the drawing are a device and a system for implementation of the procedure. Fig. R is a cross-section according to: A-A cler Fig. Z.
Das; beispielsweise aus. einem Schmelzofen a abgestochene flüssige Eisen, wird in dünnem Strahl auf die wassergekühlte Rinne b geleitet, die in c schwenkbar gelagert ist und durch einen Vibrator d in. Rüttelbewegung versetzt wird. Sobald der Eisenstrahl auf die in schwingende oder rüttelnde Bewegung versetzte, Rinne auftrifft, wird das Eisen in kleine Teilchen zerrissen und auf dem Wege über die Rinne bereits so weitgehend abgekühlt, daß die einzelnen: Teilchen, in teigförmigen Zustand übergehen. Am Austrageende e der Rinne wird das teigförmige Gut zur vollständigen Abkühlung mit Wasser h bespritzt, um hiernach durch das endlose Transportband f weiterbefördert zu werden.That; for example from. a smelting furnace a tapped liquid Iron, is directed in a thin stream onto the water-cooled channel b, which swivels in c is mounted and is set in shaking motion by a vibrator. As soon the iron beam on the gutter set in vibrating or shaking motion hits, the iron is torn into small particles and on the way over the Trough has already cooled down so largely that the individual: particles, in dough-shaped Override state. At the discharge end e of the channel, the dough-like material is complete Cooling is splashed with water h, after which by the endless conveyor belt f to be promoted.
Die wassergekühlte Rinne b, deren Seitenwände und Boden, gekühlt sind, kann durch die ebenfalls von Kühlwasser durchströmte Kühlplatte g überdeckt und in der Längsrichtung zweiteilig ausgebildet sein. Unter der am Rinnenende angeordneten Wasserberieselung la ist das Wassersammelbecken i vorgesehen.The water-cooled gutter b, the side walls and bottom of which are cooled, can be covered by the cooling plate g through which cooling water also flows and be formed in two parts in the longitudinal direction. Under the one arranged at the end of the channel Water sprinkling la is provided for the water collecting basin i.
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DER2718D DE913729C (en) | 1941-05-23 | 1941-05-23 | Process for granulating metals and slag |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DER2718D DE913729C (en) | 1941-05-23 | 1941-05-23 | Process for granulating metals and slag |
Publications (1)
Publication Number | Publication Date |
---|---|
DE913729C true DE913729C (en) | 1954-06-18 |
Family
ID=7396099
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DER2718D Expired DE913729C (en) | 1941-05-23 | 1941-05-23 | Process for granulating metals and slag |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE913729C (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE959649C (en) * | 1943-08-26 | 1957-03-07 | Administration Sequestre Des R | Process for the production of phosphorus-free pig iron from phosphorus and vanadium-containing pig iron |
DE1246474B (en) * | 1963-08-07 | 1967-08-03 | Knapsack Ag | Decay projectile for guns |
WO1983002267A1 (en) * | 1981-12-31 | 1983-07-07 | Laitinen, Keijo | Method and apparatus for manufacturing glass splinter mass |
EP0257903A2 (en) * | 1986-08-14 | 1988-03-02 | Multimetco, Inc. | Apparatus and method for fragmenting slag |
WO1993001131A1 (en) * | 1991-07-04 | 1993-01-21 | Anton More | Process and device for the continuous treatment of silicon |
WO2001040523A1 (en) * | 1999-11-30 | 2001-06-07 | Vilela, Viviane, Vasconcelos | Apparatus and process to extract heat and to solidify molten material particles |
DE10107562A1 (en) * | 2001-02-17 | 2002-09-05 | Skw Stahl Technik Gmbh | Device for conditioning hot metal-containing slag produced during steel production comprises buffer module, oscillating module(s) and transport module |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE279657C (en) * | ||||
AT135675B (en) * | 1932-10-29 | 1933-11-25 | Johann Eder | Device for the production of metal grains. |
CH206995A (en) * | 1938-01-21 | 1939-09-15 | Degussa | Process for converting molten substances into finely divided form. |
-
1941
- 1941-05-23 DE DER2718D patent/DE913729C/en not_active Expired
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE279657C (en) * | ||||
AT135675B (en) * | 1932-10-29 | 1933-11-25 | Johann Eder | Device for the production of metal grains. |
CH206995A (en) * | 1938-01-21 | 1939-09-15 | Degussa | Process for converting molten substances into finely divided form. |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE959649C (en) * | 1943-08-26 | 1957-03-07 | Administration Sequestre Des R | Process for the production of phosphorus-free pig iron from phosphorus and vanadium-containing pig iron |
DE1246474B (en) * | 1963-08-07 | 1967-08-03 | Knapsack Ag | Decay projectile for guns |
WO1983002267A1 (en) * | 1981-12-31 | 1983-07-07 | Laitinen, Keijo | Method and apparatus for manufacturing glass splinter mass |
EP0257903A2 (en) * | 1986-08-14 | 1988-03-02 | Multimetco, Inc. | Apparatus and method for fragmenting slag |
EP0257903A3 (en) * | 1986-08-14 | 1989-02-22 | Texasgulf Minerals & Metals Incorporated | Apparatus and method for fragmenting slag |
WO1993001131A1 (en) * | 1991-07-04 | 1993-01-21 | Anton More | Process and device for the continuous treatment of silicon |
US5490162A (en) * | 1991-07-04 | 1996-02-06 | Anton More | Process and device for the continuous treatment of silicon |
WO2001040523A1 (en) * | 1999-11-30 | 2001-06-07 | Vilela, Viviane, Vasconcelos | Apparatus and process to extract heat and to solidify molten material particles |
US6349548B1 (en) | 1999-11-30 | 2002-02-26 | Viviane Vasconcelos Vilela Ltd. | Apparatus and process to extract heat and to solidify molten material particles |
DE10107562A1 (en) * | 2001-02-17 | 2002-09-05 | Skw Stahl Technik Gmbh | Device for conditioning hot metal-containing slag produced during steel production comprises buffer module, oscillating module(s) and transport module |
DE10107562C2 (en) * | 2001-02-17 | 2002-12-19 | Skw Stahl Technik Gmbh | Device and method for conditioning hot, metal-containing slags |
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