ES2021395B3 - - Google Patents

Info

Publication number
ES2021395B3
ES2021395B3 ES87850297T ES87850297T ES2021395B3 ES 2021395 B3 ES2021395 B3 ES 2021395B3 ES 87850297 T ES87850297 T ES 87850297T ES 87850297 T ES87850297 T ES 87850297T ES 2021395 B3 ES2021395 B3 ES 2021395B3
Authority
ES
Spain
Prior art keywords
middlings
mineral
reground
regrinding
grains
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 - Lifetime
Application number
ES87850297T
Other languages
Spanish (es)
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 filed Critical
Application granted granted Critical
Publication of ES2021395B3 publication Critical patent/ES2021395B3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C17/00—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls
    • B02C17/16—Mills in which a fixed container houses stirring means tumbling the charge
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C17/00—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls
    • B02C17/18—Details
    • B02C17/20—Disintegrating members
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
    • B03B9/00—General arrangement of separating plant, e.g. flow sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
    • B03D1/00—Flotation
    • B03D1/02—Froth-flotation processes

Abstract

Regrinding of middlings in a mineral-product dressing process of the kind in which the middlings are reground in order to crush individual half-grains and release valuable mineral therefrom, is carried out in a mill using an agitated grinding medium. The middlings are reduced to a particle size which is smaller than k80 = 100 mu m. There are used grinding bodies having a mean size of from 2 to 6 mm.
ES87850297T 1986-10-06 1987-10-02 Expired - Lifetime ES2021395B3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE8604241A SE8604241D0 (en) 1986-10-06 1986-10-06 RETURN MATERIALS PROCESSING

Publications (1)

Publication Number Publication Date
ES2021395B3 true ES2021395B3 (en) 1991-11-01

Family

ID=20365837

Family Applications (1)

Application Number Title Priority Date Filing Date
ES87850297T Expired - Lifetime ES2021395B3 (en) 1986-10-06 1987-10-02

Country Status (5)

Country Link
EP (1) EP0267170B1 (en)
AT (1) ATE60527T1 (en)
DE (1) DE3767832D1 (en)
ES (1) ES2021395B3 (en)
SE (1) SE8604241D0 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1230847B (en) * 1989-05-22 1991-11-08 Rodio & C Const G PROCEDURE AND PLANT FOR THE PRODUCTION OF INJECTABLE CEMENT MIXTURES.
SE9000797L (en) * 1990-03-07 1991-09-08 Sala International Ab DEVICE FOR MILLING OF MINERAL PRODUCTS
SE469417B (en) * 1991-12-20 1993-07-05 Sala International Ab SETTING AND DEVICE FOR FINAL PAINTING OF FOOD FILLER DAMAGES APPLICABLE MINERALS IN DRY CONDITION
SE502566C2 (en) * 1992-12-04 1995-11-13 Cementa Ab Methods for relaying cement
EP0577889B1 (en) * 1992-07-07 1997-09-17 Ecc International Limited Differential grinding
CN106179718A (en) * 2016-08-02 2016-12-07 山东华联矿业股份有限公司 Dressing of middles technique
CN107812590B (en) * 2016-09-14 2020-01-03 中国地质科学院矿产综合利用研究所 Selective dissociation strengthening separation method for fine particles difficult to separate
CN108704761A (en) * 2018-04-24 2018-10-26 赣州金环磁选设备有限公司 A method of preparing plank quartz using beach quartz sand
CN110976069A (en) * 2020-01-10 2020-04-10 中建材蚌埠玻璃工业设计研究院有限公司 Harmless purification method of deep sea phase sedimentary type quartz sand

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2441584A (en) * 1942-06-20 1948-05-18 Harry L Mcneill Closed circuit grinding with twostage classification
US3167502A (en) * 1962-03-20 1965-01-26 Minerals & Chem Philipp Corp Process for recovering cassiterite from ores
DE1261094B (en) * 1967-07-28 1968-02-15 Siteg Siebtech Gmbh Method and device for processing by means of flotation
SE410561B (en) * 1973-04-13 1979-10-22 Boliden Ab INSTALLATION FOR AUTOGEN OR SEMIAUTOGEN GRINDING OF PIECE MATERIAL, SPECIAL ORE
SE382920B (en) * 1973-08-09 1976-02-23 Platmanufaktur Ab DEVICE FOR SEPARATION OF PRE-SORTED HOUSEHOLD WASTE
DE2827924B2 (en) * 1977-10-13 1981-05-21 Simmering-Graz-Pauker AG für Maschinen-, Kessel- und Waggonbau, Wien Process for processing floatable minerals and ores

Also Published As

Publication number Publication date
EP0267170A1 (en) 1988-05-11
DE3767832D1 (en) 1991-03-07
EP0267170B1 (en) 1991-01-30
SE8604241D0 (en) 1986-10-06
ATE60527T1 (en) 1991-02-15

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