DE1095091B - Method and device for granulating metal and slag melts - Google Patents

Method and device for granulating metal and slag melts

Info

Publication number
DE1095091B
DE1095091B DEH33565A DEH0033565A DE1095091B DE 1095091 B DE1095091 B DE 1095091B DE H33565 A DEH33565 A DE H33565A DE H0033565 A DEH0033565 A DE H0033565A DE 1095091 B DE1095091 B DE 1095091B
Authority
DE
Germany
Prior art keywords
funnel
melt
outlet
double
slag
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
DEH33565A
Other languages
German (de)
Inventor
Dr-Ing Eugen Peetz
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.)
SALZGITTER HUETTENWERK AG
Original Assignee
SALZGITTER HUETTENWERK AG
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 SALZGITTER HUETTENWERK AG filed Critical SALZGITTER HUETTENWERK AG
Priority to DEH33565A priority Critical patent/DE1095091B/en
Priority to GB1957359A priority patent/GB873394A/en
Priority to BE579731A priority patent/BE579731A/en
Publication of DE1095091B publication Critical patent/DE1095091B/en
Pending legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B7/00—Working up raw materials other than ores, e.g. scrap, to produce non-ferrous metals and compounds thereof; Methods of a general interest or applied to the winning of more than two metals
    • C22B7/04—Working-up slag
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2/00—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic
    • B01J2/02—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic by dividing the liquid material into drops, e.g. by spraying, and solidifying the drops
    • B01J2/06—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic by dividing the liquid material into drops, e.g. by spraying, and solidifying the drops in a liquid medium
    • 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
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B3/00—General features in the manufacture of pig-iron
    • C21B3/04—Recovery of by-products, e.g. slag
    • C21B3/06—Treatment of liquid slag
    • C21B3/08—Cooling slag
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B2400/00—Treatment of slags originating from iron or steel processes
    • C21B2400/02—Physical or chemical treatment of slags
    • C21B2400/022—Methods of cooling or quenching molten slag
    • C21B2400/024—Methods of cooling or quenching molten slag with the direct use of steam or liquid coolants, e.g. water
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B2400/00—Treatment of slags originating from iron or steel processes
    • C21B2400/05—Apparatus features
    • C21B2400/062—Jet nozzles or pressurised fluids for cooling, fragmenting or atomising slag
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B2400/00—Treatment of slags originating from iron or steel processes
    • C21B2400/05—Apparatus features
    • C21B2400/066—Receptacle features where the slag is treated
    • C21B2400/072—Tanks to collect the slag, e.g. water tank
    • 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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/20—Recycling

Description

Verfahren und Vorrichtung zum Granulieren von Metall-und Schlackenschmelzen Es ist bekannt, Metall- und Schlackenschmelzen dadurch zu granulieren, daß man den zu zerteilenden Schmelzstrahl zu einer kegelmantelförmigen Schicht ausbreitet, die Schicht ausschleudert und in Granulat zerteilt und das Granulat in Wasser abkühlt. Zum Ausbreiten und Ausschleudern der kegelmantelförmigen Metall- bzw. Schlackenschicht dient dabei ein um eine senkrechte Achse umlaufender Drehkörper. Method and device for granulating metal and slag melts It is known that molten metal and slag can be granulated by the to be divided melt jet spreads to a cone-shaped layer which The layer is thrown out and divided into granules and the granules are cooled in water. For spreading and hurling out the cone-shaped metal or slag layer a rotating body revolving around a vertical axis is used.

Da beim Granulieren schmelzflüssiger Metall- und Schlackenschmelzen Geräte mit bewegten Teilen, wie Drehtellern, Trommeln u. dgl., störanfällig sind und auch nicht immer mit der erforderlichen Gleichmäßigkeit arbeiten, liegt der Erfindung die Aufgabe zugrunde, ohne sie auszukommen. Das ist bei einem Verfahren zum Granulieren von Metall- und Schlackenschmelzen möglich, bei dem erfindungsgemäß die Schmelze mit so hoher kinetischer Energie tangential nach abwärts gerichtet in einen aufrecht stehenden, ortsfesten Trichter mit umgekehrt doppelkegelig gestaltetem Auslauf eingeführt wird, daß sie aus dem Auslauf als geschlossener, paraboloidförmiger Hohlkörper austritt, von dessen unterem Ende sich die Schmelze in Tröpfchen ablöst. Das Zerflattern bzw. das Abtropfen der paraboloidförmigen Metall-oder Schlackenschmelze in dem doppelkegeligen Auslauf kann dadurch geregelt werden, daß man die Neigung des doppelkegelig gestalteten Auslaufs des Trichters verändert. As when granulating molten metal and slag melts Devices with moving parts, such as turntables, drums and the like, are prone to failure and not always work with the required uniformity, that's where it lies The invention is based on the object without it. That is with one procedure for granulating metal and slag melts possible in the case of the invention the melt with such high kinetic energy directed tangentially downwards into an upright, stationary funnel with an inverted double-conical shape Spout is introduced that it comes out of the spout as a closed, paraboloidal shape Hollow body emerges, from the lower end of which the melt is detached in droplets. The fluttering or dripping of the parabolic metal or slag melt in the double-conical spout can be regulated by the inclination of the double-conical shaped outlet of the funnel changed.

Beim Granulieren von Metall hat man schon unter dem Bodenabstich eines Schmelzofens eine doppelkegelige, venturiartige Saugdüse angeordnet und dicht über ihr eine mit Blasgas betriebene Granulierdüse, deren Wirkung dadurch gefördert werden soll, daß sich die zerteilende Wirkung des Gases beim Durchgang durch die doppelkegelige Saugdüse erhöht. Demgegenüber dient der doppelkegelige Auslauf des Trichters nach der Erfindung ausschließlich zum Ausbreiten des zu zerteilenden Schmelzstrahles zu einem geschlossenen paraboloidförmigen Hohlkörper. von dessen unterem Ende sich die Schmelze in Tröpfchen ablöst. When granulating metal you already have under the floor tap of a melting furnace, a double-conical, venturi-like suction nozzle is arranged and sealed above her a granulating nozzle operated with blowing gas, the effect of which is thereby promoted should be that the dividing effect of the gas when passing through the double-conical suction nozzle increased. In contrast, the double-conical outlet of the Funnel according to the invention exclusively for spreading the melt jet to be divided to a closed paraboloidal hollow body. from its lower end itself the melt detaches in droplets.

In der Zeichnung ist eine Vorrichtung zur Durchführung des erfindungsgemäßen Verfahrens im senkrechten Schnitt schematisch dargestellt. In the drawing is a device for carrying out the invention Procedure shown schematically in vertical section.

Der stehende Trichter 1 besitzt einen doppelkegelig gestalteten Auslauf 2. Er ist ortsfest über einem mit Wasser gefüllten Behälter 3 aufgestellt. The upright funnel 1 has a double-conical spout 2. It is set up in a stationary manner above a container 3 filled with water.

Die zu granulierende Metall- oder Schlackenschmelze läuft über eine Rinne 4 tangential und mit hoher Geschwindigkeit in den Trichter 1 ein. Dadurch wird sie in eine rasch kreisende Bewegung versetzt, die in der Zeichnung durch den schraffierten Linienzug 5 dargestellt ist. Auf diese Weise bildet sich bereits im un- teren Teil des Trichters t ein Hohlkörper 6, der sich in dem Auslauf 2 des Trichters zu einem geschlossenen, paraboloidförmigen Hohlkörper 7 erweitert.The molten metal or slag to be granulated runs over a Channel 4 tangentially and at high speed into the funnel 1. Through this it is set in a rapidly circling motion, which in the drawing is caused by the hatched line 5 is shown. In this way, the U.N- lower part of the funnel t a hollow body 6, which is in the outlet 2 of the funnel expanded to form a closed, parabolic hollow body 7.

Am unteren Ende 8 lösen sich von diesem Hohlkörper Tröpfchen 9 ab, die in den unter dem Trichter angeordneten Wasserbehälter 3 fallen und dort zu Granulat erstarren, das aus dem Wasserbehälter absatzweise oder auch mit dem zunächst gestauten Wasser zusammen in bekannter Weise fortlaufend abgeführt werden kann.At the lower end 8 droplets 9 detach from this hollow body, which fall into the water container 3 arranged under the funnel and become granules there solidify that from the water tank intermittently or with the initially jammed Water can be continuously removed together in a known manner.

Claims (3)

PATENTANSPROCHE: 1. Verfahren zum Granulieren von Metall- und Schlackenschmelzen durch Ausbreiten eines Schmelzstrahles zu einer kegelmantelförmigen Schicht, Ausschleudern und Zerteilen der Schicht in Granulat und Kühlen des Granulats in Wasser, dadurch gekennzeichnet, daß die Schmelze mit so hoher kinetischer Energie tangential nach abwärts gerichtet in einen aufrecht stehenden, ortsfesten Trichter mit doppelkegelig gestaltetem Auslauf eingeführt wird, daß sie aus dem Auslauf als geschlossener, paraboloidförmiger Hohlkörper austritt, von dessen unterem Ende sich die Schmelze in Tröpfchen ablöst. PATENT CLAIM: 1. Process for granulating molten metal and slag by spreading a melt jet to form a cone-shaped layer, centrifuging and dividing the layer into granules and thereby cooling the granules in water characterized in that the melt with such a high kinetic energy tangentially after directed downwards into an upright, stationary funnel with a double cone designed outlet is introduced so that it emerges from the outlet as a closed, parabolic hollow body emerges, from the lower end of which the melt spreads comes off in droplets. 2. Vorrichtung zur Durchführung des Verfahrens nach Anspruch 1, gekennzeichnet durch einen ortsfesten Trichter (1) mit doppelkegelig gestaltetem Auslauf (2) und einem in den oberen Teil des Trichters mündenden, tangential nach abwärts gerichteten Zulauf (4) für die Schmelze. 2. Device for performing the method according to claim 1, characterized through a stationary funnel (1) with a double-conical outlet (2) and one which opens into the upper part of the funnel and is directed tangentially downwards Feed (4) for the melt. 3. Vorrichtung nach Anspruch 2, dadurch gekennzeichnet, daß die Neigung des doppelkegelig gestalteten Auslaufs (2) des Trichters (1) veränderlich ist. 3. Apparatus according to claim 2, characterized in that the inclination of the double cone designed outlet (2) of the funnel (1) is variable. In Betracht gezogene Druckschriften: Deutsche Patentschrift Nr. 920 285; österreichische Patentschrift Nr. 135 675; schweizerische Patentschrift Nr. 315 662; britische Patentschrift Nr. 559 049. Documents considered: German Patent No. 920 285; Austrian Patent No. 135 675; Swiss patent no. 315 662; British Patent No. 559 049.
DEH33565A 1958-06-16 1958-06-16 Method and device for granulating metal and slag melts Pending DE1095091B (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DEH33565A DE1095091B (en) 1958-06-16 1958-06-16 Method and device for granulating metal and slag melts
GB1957359A GB873394A (en) 1958-06-16 1959-06-08 Improvements relating to processes and apparatus for granulating metal and slag melts
BE579731A BE579731A (en) 1958-06-16 1959-06-16 Method and apparatus for granulating metal or slag streams.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEH33565A DE1095091B (en) 1958-06-16 1958-06-16 Method and device for granulating metal and slag melts

Publications (1)

Publication Number Publication Date
DE1095091B true DE1095091B (en) 1960-12-15

Family

ID=7152180

Family Applications (1)

Application Number Title Priority Date Filing Date
DEH33565A Pending DE1095091B (en) 1958-06-16 1958-06-16 Method and device for granulating metal and slag melts

Country Status (3)

Country Link
BE (1) BE579731A (en)
DE (1) DE1095091B (en)
GB (1) GB873394A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2444197A1 (en) * 1974-09-16 1976-03-25 Kindt Huebscher Christian Jako Granulating blast-furnace slag to make building material - where molten slag is forced under pressure into quenching water
DE3346386A1 (en) * 1983-12-22 1985-07-04 Wolfgang 4600 Dortmund Seidler Process and apparatus for the production of steel granulate, especially as abrasive

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT135675B (en) * 1932-10-29 1933-11-25 Johann Eder Device for the production of metal grains.
GB559049A (en) * 1942-04-30 1944-02-02 Telephone Mfg Co Ltd Improvements in and relating to the reduction of metals to powdered or granular form
DE920285C (en) * 1944-03-18 1954-11-18 Eisen & Stahlind Ag Method and device for granulating molten substances, in particular pig iron
CH315662A (en) * 1952-12-06 1956-08-31 Moossche Eisenwerke Ag Process for the production of metallic granules and apparatus for carrying out this process

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT135675B (en) * 1932-10-29 1933-11-25 Johann Eder Device for the production of metal grains.
GB559049A (en) * 1942-04-30 1944-02-02 Telephone Mfg Co Ltd Improvements in and relating to the reduction of metals to powdered or granular form
DE920285C (en) * 1944-03-18 1954-11-18 Eisen & Stahlind Ag Method and device for granulating molten substances, in particular pig iron
CH315662A (en) * 1952-12-06 1956-08-31 Moossche Eisenwerke Ag Process for the production of metallic granules and apparatus for carrying out this process

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2444197A1 (en) * 1974-09-16 1976-03-25 Kindt Huebscher Christian Jako Granulating blast-furnace slag to make building material - where molten slag is forced under pressure into quenching water
DE3346386A1 (en) * 1983-12-22 1985-07-04 Wolfgang 4600 Dortmund Seidler Process and apparatus for the production of steel granulate, especially as abrasive

Also Published As

Publication number Publication date
GB873394A (en) 1961-07-26
BE579731A (en) 1959-10-16

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