GB956600A - Method of stirring, dispersing or homogenising metal or slag charges having a temperature of at least 800íµ., and mechanical device for such stirring, etc - Google Patents

Method of stirring, dispersing or homogenising metal or slag charges having a temperature of at least 800íµ., and mechanical device for such stirring, etc

Info

Publication number
GB956600A
GB956600A GB24233/61A GB2423361A GB956600A GB 956600 A GB956600 A GB 956600A GB 24233/61 A GB24233/61 A GB 24233/61A GB 2423361 A GB2423361 A GB 2423361A GB 956600 A GB956600 A GB 956600A
Authority
GB
United Kingdom
Prior art keywords
stirrer
stirring
charge
temperature
ladle
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
GB24233/61A
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.)
OSTBERG JAN ERIK
Original Assignee
OSTBERG JAN ERIK
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 OSTBERG JAN ERIK filed Critical OSTBERG JAN ERIK
Publication of GB956600A publication Critical patent/GB956600A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D27/00—Stirring devices for molten material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/80—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis
    • B01F27/81—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis the stirrers having central axial inflow and substantially radial outflow
    • B01F27/811—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis the stirrers having central axial inflow and substantially radial outflow with the inflow from one side only, e.g. stirrers placed on the bottom of the receptacle, or used as a bottom discharge pump
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D3/00—Charging; Discharging; Manipulation of charge
    • F27D2003/0085—Movement of the container or support of the charge in the furnace or in the charging facilities
    • F27D2003/0087—Rotation about a vertical axis
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D27/00—Stirring devices for molten material
    • F27D27/005—Pumps

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
  • Treatment Of Steel In Its Molten State (AREA)

Abstract

A molten metal and/or slag charge at a temperature of at least 800 DEG C. contained in a ladle 1 is stirred by a stirrer 2 rotated by a driven shaft 3 and having a substantially vertical tubular portion with at least one substantially horizontal tubular stirring arm attached to the upper part. Material is caused to flow out of the horizontal arms at a velocity of up to 5 metres/sec. by centrifugal force and is replaced by material flowing in at the bottom of the vertical tube ; the path of the material within the stirrer is at least 15% of the sum of the mean height and mean diameter of the charge. There may be additional inlets in the walls of the vertical tubular portion of the stirrer above or below the horizontal arm(s). <PICT:0956600/C3/1> The ladle has a lid 6 and seals 7, 8 whereby an increased or reduced pressure or special atmoshere may be maintained above the charge. For a charge of 20 tons, the tube diameter of the stirrer may be 150 mm. and its wall thickness and radii of curvature at least 10 mm.; its normal speed will be 60 r.p.m. with a maximum of 500 r.p.m. For stirring iron the stirrer may be made of graphite; chamotte, or at higher temperatures sillimanite, may be used with steel.
GB24233/61A 1960-07-07 1961-07-05 Method of stirring, dispersing or homogenising metal or slag charges having a temperature of at least 800íµ., and mechanical device for such stirring, etc Expired GB956600A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE662760 1960-07-07

Publications (1)

Publication Number Publication Date
GB956600A true GB956600A (en) 1964-04-29

Family

ID=20269191

Family Applications (1)

Application Number Title Priority Date Filing Date
GB24233/61A Expired GB956600A (en) 1960-07-07 1961-07-05 Method of stirring, dispersing or homogenising metal or slag charges having a temperature of at least 800íµ., and mechanical device for such stirring, etc

Country Status (2)

Country Link
US (1) US3278295A (en)
GB (1) GB956600A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1758040B1 (en) * 1968-03-23 1974-07-18 Rheinstahl Huettenwerke Ag Process for desulfurization and deoxidization of carbonaceous iron melts in a ladle and device for its implementation
CN117190689A (en) * 2023-11-06 2023-12-08 包头三钐稀土有限公司 Rare earth metal smelting system

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3490896A (en) * 1966-09-07 1970-01-20 Kaiser Aluminium Chem Corp Process for improving mixing efficiency
CH508047A (en) * 1966-10-11 1971-05-31 Oestberg Jan Erik Arrangement for the formation of a flow in the reaction zone between two layers of very different specific gravity located one above the other in a container
SE307627B (en) * 1967-02-09 1969-01-13 J Oestberg
DE1926290A1 (en) * 1969-05-22 1970-11-26 Kocks Gmbh Friedrich Container or the like. with lid for heating and treating molten metal under vacuum
US3738773A (en) * 1971-10-20 1973-06-12 Tait Mfg Co Bladeless pump impeller
US3791797A (en) * 1971-12-20 1974-02-12 V Yuen Method for purifying mercury
JPS5219525B2 (en) * 1972-09-05 1977-05-28
FR2234032B1 (en) * 1973-06-25 1976-09-17 Labo Electronique Physique
US4328958A (en) * 1978-08-07 1982-05-11 Dolzhenkov Boris S Apparatus for stirring molten metal in container
US4235626A (en) * 1978-12-19 1980-11-25 Dolzhenkov Boris S Method and apparatus for stirring molten metal
US4240618A (en) * 1979-02-23 1980-12-23 Ostberg Jan Erik Stirrer for metallurgical melts
NO155447C (en) * 1984-01-25 1987-04-01 Ardal Og Sunndal Verk DEVICE FOR PLANT FOR TREATMENT OF A FLUID, E.g. AN ALUMINUM MELT.
EP0183402B1 (en) * 1984-11-29 1988-08-17 Foseco International Limited Rotary device, apparatus and method for treating molten metal
DE3717969C1 (en) * 1987-05-27 1988-07-14 Giselher Dr Gust Method and device for generating defined ground shear stresses
CN106440786A (en) * 2016-09-22 2017-02-22 长春黄金研究院 Pouring type industrial high-temperature heating furnace and usage method thereof

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1311964A (en) * 1919-08-05 Venor
US2397737A (en) * 1942-07-14 1946-04-02 Essex Res Corp Process of desulphurizing
US2660525A (en) * 1952-01-22 1953-11-24 Charles B Foster Method of extracting lead from its sulfides
US3893860A (en) * 1974-07-16 1975-07-08 Eastman Kodak Co Photothermographic element and process

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1758040B1 (en) * 1968-03-23 1974-07-18 Rheinstahl Huettenwerke Ag Process for desulfurization and deoxidization of carbonaceous iron melts in a ladle and device for its implementation
CN117190689A (en) * 2023-11-06 2023-12-08 包头三钐稀土有限公司 Rare earth metal smelting system
CN117190689B (en) * 2023-11-06 2024-01-02 包头三钐稀土有限公司 Rare earth metal smelting system

Also Published As

Publication number Publication date
US3278295A (en) 1966-10-11

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