newsletter gb 0208

8/9/2019 Newsletter Gb 0208

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Success with the fluidized bed | 1

allmineral

Paper presented at

Conference on MARKETING OF INDIAN IRON ORE in Goa, India | 23-24 August 2007

Eng. José Pancrácio Ribeiro | Dipl.-Ing. Andreas Horn

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gaustec® – the new Wet High

Intensity Magnetic Separator



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The gaustec® WHIMS

2 | The gaustec® WHIMS

Introduction

allmineral world leader in jigging technology has sig-

ned a Cooperation Agreement with Gaustec Magne-

tismo Ltda. | Brazil in 2006, to market the gaustec®

Magnetic Separator WHIMS type (Wet High Intensity

Magnetic Separator) on a worldwide basis.

This equipment has been designed and improved by

skilled engineers based on their practical experien-

ce of more than 20 years. Several features introduced

to the standard equipment led to the best possible

operational flexibility and easy maintenance.

Leading Technology in Magnetic Separation

A wide range of sizes starting from the smallest unitfor research and process design applications (G340 –

Minimag), with a rated feed capacity of 0.3 t/h, to the

biggest equipment of its kind ever constructed, the

G3600 with a rated feed capacity of 200 t/h is offered.



gaustec® | Technology

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gaustec® Technology | 3

Wet High Intensity Magnetic Separator

Separates ores and other paramagnetic

and feebly magnetic minerals with a par-

ticle size up to 3 mm.

Matrix is made of grooved plates.

Vertical and unhindered flow through the

matrix

The high gradient magnetic field is inde-

pendently adjustable for each rotor

Rougher and cleaner| scavenger process

step possible in one single machine.

Rotor speed is adjustable from 3 to 7 rpm.

Throughput rates of 0,3-200 t|h per machine

-

-

-

-

-

-

-



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4 | gaustec® 3600

gaustec®

gaustec® 3600 | 200 tph feed capacity

The biggest WHIMS in the world.



Innovations | 5

Innovations | The key factor to keep the pace with the growing mining industries demands

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1. Magnetic Induction of each Rotor Independently

adjustable.

The high gradient magnetic field is independent-

ly adjustable for each rotor through AC/DC con-

verters, in the operational ranges. This allows for

rougher and cleaner |scavenger process steps in

one single machine.

2. The standard equipment is supplied with

two AC/DC power supplies, one for each rotor.

The coils that generate the magnetic field on the

top and bottom rotor are fed electrically indepen-

dent, making it possible to have the necessary

magnetic induction on each rotor adjusted accor-

ding to the operational needs.

This feature is also of advantage from the main-

tenance point of view, since if one of the AC/DC

power supplies fails the second power supply can

supply energy to all coils of the machine maintai-

ning the production in emergency status, until

the necessary repair can be made.

Main features introduced to the gaustec®

WHIMS that improve their performance beyond the known limitsof Magnetic Separator Technology:



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6 | Room between poles

gaustec® | Room between poles

3. Larger distance between magnetic poles

One of the main restriction to make the mainte-

nance in traditional WHIMS is the small distance

between the rotors. This makes the maintenance

of the bottom rotor like matrix inspection, clea-

ning, and retightening of the bolts, a tiresome

and difficult task to perform.

The gaustec® Whims presents as one of its main

features a comfortable room between rotors,

making operation and maintenance of this equip-

ment easy.



gaustec® | Adjustable Magnetic pole

Adjustable Magnetic pole | 7

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4. Adjustment of the effective magnetic area of the

magnetic poles

Electrical energy saving is a must in the gaustec®

WHIMS design. The increasing demand to reach

higher magnetic induction is an important factor

as well.

Looking for the wide application range the gau-

stec® WHIMS is developed for, a new design of the

magnetic poles has been introduced to achieve

both: energy savings and higher magnetic induc-

tions.

This possibility is offered to our customers by

making the magnetic pole area adjustable.

Adjustable Magnetic pole

Adjustable Pole



8 | Adjustable Magnetic pole

Adjustable Magnetic pole | Principle

gaustec® | Adjustable Magnetic pole

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The pole size can be adjusted by simply adding

respectiveley removing the yellow marked pole wed-

ges. With a smaller pole one saves energy or can

increase the magnetic field strength. With a wider

pole the residence time can be increased leading to a

higher separation efficiency.



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gaustec® Technology | 9

gaustec® | Technology

5. Two process steps in one single machine

Due to the independently adjustable magnetic

fields for the two rotors a cleaner-scavenger pro-

cess can be realised in a single machine. This

offers unsurpassed flexibilty with regard to pro-

duct quality and recovery.



1 1

| 2 0 0 5

1 2

| 2 0 0 5

0 1

| 2 0 0 6

0 2

| 2 0 0 6

0 3

| 2 0 0 6

0 4

| 2 0 0 6

0 5

| 2 0 0 6

0 6

| 2 0 0 6

0 7

| 2 0 0 6

0 8

| 2 0 0 6

0 9

| 2 0 0 6

1 0

| 2 0 0 6

1 1

| 2 0 0 6

1 2

| 2 0 0 6

0 1

| 2 0 0 7

0 2

| 2 0 0 7

0 3

| 2 0 0 7

0 4

| 2 0 0 7

0 5

| 2 0 0 7

0 6

| 2 0 0 7

0 7

| 2 0 0 7

78

74

71

69

66

63

60

57

54

51

48

45

42

39

33

3027

24

21

18

15

12

9

3

0

3, 15 3,23 2,75 2,97 2,73 2,66 2,71 2,88 2,87 2,84 2,75 2,64 3,15 3,07 3,27 3,02 2,63

15,54

19,01 18,1516,23

15,48 16,7418,18 19,40

16,6617,50

21,15

15,3619,35

21,50

17,0815,45 15,96

57,5155,67 56,23 57,31 58,12 57,32

56,0855,40

58,38 56,76

54,2858,06 55,50 54,14 56,62

58,15 57,71

66,79 66,66 67,05 66,40 66,98 67,00 66,94 66,74 66,76 66,81 66,87 66,83 66,56 66,65 66,53 66,72 66,79

Concentrate

Feed

Fe

Feed

Concentrate

SiO2

Fe ( Feed) SiO2 (Feed) Fe (Conc) SiO2 ( Conc)

Performance Data

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gaustec® WHIMS

The performance data of an Gau-

stec 3200 in operation in a Brazilian

mine (03| 2006 - 07|2007) shownot

only a significant increase in pro-

duct quality. The variations in the

feed grade are eliminated and a

very constant product quality is

produced.

10 | Performance Data



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gaustec® | The Minimag

6. Lab Scale Process Design with »MINIMAG«

For the process development for new ore types,

allmineral offers the laboratory WHIMS G340

»MINIMAG«. With a wide range of magnetic

induction reaching fields of up to 17.000 Gauss

(1.7 Tesla) , this equipment works with the real

dynamic conditions of an industrial unit enabling

the process engineer to safely develop his pro-

ject.

Four types of magnetic matrix, with its scale fac-

tor to larger equipments, are offered as standard

design. Other type of matrix can be offered upon

request.

The Minimag

The Minimag | 1 1



12 | The Minimag Matrix

gaustec® | The Minimag Matrix identical to Industrial Matrix

Minimag Matrix | Industrial Matrix

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The matrix for the Minimag has the same height as

the matrix boxes of the industrial units. This ensures

an identical residence time in the process which is

very important for upscaling.

ll i l



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The Minimag-Rotor | 1 3

gaustec® | Minimag Rotor

The Minimag-Rotor



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Aufbereitungstechnik GmbH & Co. KG

Baumstraße 45

47198 Duisburg|Germany

Telefon +49(0)2066. 9917-0

Telefax +49(0)2066.9917-17

e-mail [email protected]

www.allmineral.com

allmineral Llc.

Suite 1- F, 1360 Union Hill Road

Alpharetta, Georgia 30004| USA

Telefon +1. 770 .4 100220

Telefax +1.770.4100807


www.allmineral.com

allmineral Sp.zo.o.

Ul. Powstańców Śl. 5

53332 Wrocław|Poland

Telefon +48(0)71.7837011

Telefax +48(0)71.7804418


www.allmineral.com

allmineral (Pty.) Ltd.

P.O. Box 73171

Fairland 20 30, Johannesburg| South Africa

Telefon +27(0)11.4785380|81

Telefax +27(0)11.4785388


www.allmineral.com

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Our partner in Brazil

Gaustec Magnetismo

Rua Kerban, 35

Jardim Canadá - Nova Lima - MG

Telefon +55313541. 1990


www.gaustec.com.br

newsletter gb 0208

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