GB842284A - Improvements in and relating to the production of spheroidised particles - Google Patents

Improvements in and relating to the production of spheroidised particles

Info

Publication number
GB842284A
GB842284A GB9394/58A GB939458A GB842284A GB 842284 A GB842284 A GB 842284A GB 9394/58 A GB9394/58 A GB 9394/58A GB 939458 A GB939458 A GB 939458A GB 842284 A GB842284 A GB 842284A
Authority
GB
United Kingdom
Prior art keywords
particles
nozzle
furnace
fed
annular
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
GB9394/58A
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.)
South African Iron & Steel
Original Assignee
South African Iron & Steel
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 South African Iron & Steel filed Critical South African Iron & Steel
Publication of GB842284A publication Critical patent/GB842284A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • B01J2/16—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic by suspending the powder material in a gas, e.g. in fluidised beds or as a falling curtain
    • 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
    • B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
    • B22F1/06—Metallic powder characterised by the shape of the particles
    • B22F1/065—Spherical particles

Abstract

842,284. Granulating metals. SOUTH AFRICAN IRON & STEEL INDUSTRIAL CORPORATION Ltd. March 24, 1958 [April 4, 1957], No. 9394/58. Class 82(2) Irregularly shaped solid particles of oxidizable metals or alloys, e.g. of ferrosilicon, are rendered smooth and rounded by passage through a high temperature reverse flame, in which an annular fuel gas zone surrounds a zone of air, or air enriched with oxygen, or a mixture thereof with a small proportion of combustible gases. The particles may be fed into a burner comprising a nozzle 5 surrounded by a coaxial annular nozzle 7, the particles being induced from a supply pipe 3 into a Venturi 4 by a stream of oxygen enriched air and discharged therewith through the nozzle 5, whilst a combustible gas is fed to the nozzle 7 through pipe 6. The burner is mounted in the top wall 8 of a furnace 9 at the lower end of which the rounded particles are received into a water bath 14. In order to prevent the particles from sticking to the furnace wall heating or cooling gas is fed into the furnace through an annular slot 10 and through slots communicating with annular conduits 11, 12. Alternatively the furnace may be lined with polished stainless steel or vitreous enamelled steel. In an alternative apparatus, Fig. 3 (not shown), the product is collected in the dry state in a cyclone separator.
GB9394/58A 1957-04-04 1958-03-24 Improvements in and relating to the production of spheroidised particles Expired GB842284A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ZA842284X 1957-04-04

Publications (1)

Publication Number Publication Date
GB842284A true GB842284A (en) 1960-07-27

Family

ID=25577683

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9394/58A Expired GB842284A (en) 1957-04-04 1958-03-24 Improvements in and relating to the production of spheroidised particles

Country Status (1)

Country Link
GB (1) GB842284A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106422967A (en) * 2016-11-16 2017-02-22 陈业忠 Manufacturing equipment of dispersible beaded cosmetic raw material
CN110975753A (en) * 2019-11-29 2020-04-10 大连丹特生物技术有限公司 Granulating and coating machine with Venturi effect and using method thereof
CN112169695A (en) * 2020-08-17 2021-01-05 凌岩 Device and method for reducing wall attachment in high-temperature spheroidization of silicon dioxide microspheres
CN112276102A (en) * 2019-12-02 2021-01-29 唐山龙源节能科技有限公司 Spherical metal mineral powder, preparation method and application thereof, and cement slurry composition

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106422967A (en) * 2016-11-16 2017-02-22 陈业忠 Manufacturing equipment of dispersible beaded cosmetic raw material
CN106422967B (en) * 2016-11-16 2024-04-16 陈业忠 Easily-dispersed beaded cosmetic raw material manufacturing equipment
CN110975753A (en) * 2019-11-29 2020-04-10 大连丹特生物技术有限公司 Granulating and coating machine with Venturi effect and using method thereof
CN112276102A (en) * 2019-12-02 2021-01-29 唐山龙源节能科技有限公司 Spherical metal mineral powder, preparation method and application thereof, and cement slurry composition
CN112169695A (en) * 2020-08-17 2021-01-05 凌岩 Device and method for reducing wall attachment in high-temperature spheroidization of silicon dioxide microspheres

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