HEAVY MEDIA WET DRUMMAGNETIC SEPARATORS

...maximum magnetite recoverywith a flux control circuit

FLUX CONTROL CIRCUIT s REPLACEABLE WEAR COVERSTANDARD DRIVE COMPONENTS s LIFTING EYEBOLTS s CONTOURED MAGNETISM

CHOICE OF DRUM HEADS s DRUM OVER DRUM DOUBLE DESIGNCANISTERED MAGNET s VARIABLE SPIGOTS

FULL WIDTH TAILINGS WEIR s ADJUSTABLE MAGNET POSITIONPERMANENT MAGNETISM s INTERCHANGEABLE BEARINGS

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Maximum recovery and economy with a flux control circuit

patent #3,365,599

DINGS FLUX CONTROL CIRCUIT is a breakthrough in the design of magnetic wetdrums.

Now, it is possible for the first time to eliminatewasted magnetism, and at the same timeincrease magnetic power. This invention putsmore magnetism and all the magnetism intothe working area outside the drum shell.

Sketches shown below illustrate the differencesbetween the flux control circuit, which is in allDings Wet Drums, and the other most widelyused magnetic circuits.

The sandwich circuit has flux leakage on theback or non-working surface of the assembly.The salient pole circuit has considerableleakage of the flux between the stacks ofmagnets (between the poles). The fluxcontrol circuit has no leakage.

Increasing the amount of magnet material ineither the sandwich or salient pole circuit, inan effort to achieve more working magnetism,has a severe limitation. The amount of wastedflux increases, too. Increasing the amount ofmagnet material in the flux control circuitdevelops more working magnetism and nowaste. Result - lower equipment investmentand a higher magnetite recovery.

Both the sandwich circuit (upper) and the salientpole design (middle) leak magnetic flux. The Dingsflux control circuit (bottom) controls flux leakage bythe addition of small magnets between the mainpoles.

TANK DESIGNTanks are constructed for one or more drums asrequired and are of three general types as follows:

a) Concurrent Tank (see Figure 1-2).(1) Most universally used tank.(2) Used for cobbing, roughing, finishing and

heavy media.(3) Longer time in the magnetic field for

higher recovery of magnetic materials.(4) Spigot tank allows for rejection of coarse

or non- magnetic solids.(5) Long concentrating zone offers high

magnetic concentrate cleaning capability.

b) Counter-rotation Tank (see Figure 1-3).(1) Used on fine grind cobbing and roughing

applications (80% minus 325 mesh) where high percentage of non-magnetic isto be discharged, and as a secondary heavy media separator.

(2) Magnetic concentrates picked up and immediately discharged.

(3) Spigots for removal of coarse non-magnetic tailings.

(4) High recoveries are obtainable with long tailing and overflow launders.

c) Counterflow Tank (see Figure 1-4).(1) Used on finishing where quantity of non-

magnetics is at a minimum and ultimate cleaning of magnetic concentrate is desired.

(2) Undershot feed, with counterflow wash water added under the discharge lip, washes the concentrate and removes entrained magnetics.

(3) All non-magnetics are removed by overflow.

(4) Baffles and weirs allow for maximum squeezing and wash of concentrate for highest grade.

MAGNET MATERIAL

Wet Drum magnetic separators are finished withpermanent ceramic type magnets.

a) Grade VIII ceramic magnets are used.b) There are 5 pole ceramic magnets of opposite

and alternating polarity in standard design.c) Ceramic stacks are assembled to backplate

and charged with high energy charging apparatus.

DRIVE ASSEMBLY

The drive assembly includes a short length shaftextension drive by a standard motor, standard gearreducer and standard V-belts and sheaves.

Figure 1-2. Concurrent Tank

Figure 1-3. Counter-rotation Tank

Figure 1-4. Counterflow Tank

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WET DRUMSMagnetic Separators

72 69 73 85 41 16 18 4 76 63 108 81 3 379563 60 64 76 36 14 16 3 67 57 99 72 2 369560 57 61 73 35 14 16 3 64 54 96 69 2 350048 45 49 61 21 12 14 3 52 42 84 57 2 268536 33 37 49 15 12 12 2 39 44 74 45 1.5 225524 21 25 37 16.5 9 12 2 27.5 33 49 33 1.5 182518 15 19 31 14 - 9 1 21.5 30 56 27 1 134512 9 13 25 28 - 8 1 15 27.5 50 21 1 1200

NOM MAGNET DRUM A B C D E F G H K MECH. WEIGHTWIDTH WIDTH WIDTH HP LBS.

30” Diameter30” Diameter

DATA (AVERAGE) + 5%Distance from face 9 Readings

.1” 1644

.5” 14011” 11332” 747

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120 117 121 135 65 32 89 61 124 74 148 5 6200108 105 109 123 59 29 78 55 112 68 136 5 580096 93 97 111 53 25 66 49 100 62 125 5 515084 81 85 99 47 21 54 43 88 56 113 3 447572 69 73 87 41 18 42 37 76 50 101 3 416560 57 61 75 35 21 30 31 64 44 85 3 367048 45 49 63 29 17 24 25 52 38 76 2 307036 33 37 51 23 12 20 19 40 32 64 3 259030 27 31 45 20 18 18 16 34 29 58 1.5 235524 21 25 39 17 12 12 13 28 26 52 1.5 210020 17 21 35 15 12 10 11 24 28 45 1 187012 9 13 27 11 - 6 7 16 20 38 1 1500

NOM MAGNET DRUM A B C D E F G H MECH. WEIGHTWIDTH WIDTH WIDTH HP LBS.

36” Diameter36” Diameter

DATA (AVERAGE) + 5%Distance from face 9 Readings

.1” 1684

.5” 14361” 11642” 775

Standard Features:PP11 gauge stainless steel tank. PP11 gauge drumskin with 16 gauge wear skin.PP7 gauge end plates prevent warping. PPMarine grade aluminum end flanges.PPVitaulic couplings at discharge. PPRod for magnetic adjustment.PP770 Gauss profile. PPVertical scale magnetic positioning.

Optional Features:PPHex head arm & turnbuckle for

magnetic adjustment.PPTiming belt “gates” drive.

PPVertically mounted motor.

PPStainless steel end flanges.

PP7 gauge drumskin.

PPHigh Gauss 950 profile.

PPOverflow tank at infeed.

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120 117 121 124 32 130 148 90 124 5 9090108 105 109 112 29 118 137 78 112 5 805096 93 97 100 25 106 125 66 100 5 689084 81 85 88 21 94 113 54 88 3 609572 69 73 76 18 82 101 42 76 3 493060 57 61 64 21 70 85 30 64 3 453548 45 49 52 18 58 76 24 52 2 389536 33 37 40 21 46 64 20 40 1.5 338030 27 31 34 18 40 58 18 34 1.5 312524 21 25 36 12 34 52 12 28 1.5 286020 17 21 24 12 30 45 24 1 259512 9 13 16 - 22 38 6 16 1 2090

NOM MAGNET DRUM A B C D E F MECH. WEIGHTWIDTH WIDTH WIDTH HP LBS.

48” Diameter48” Diameter

DATA (AVERAGE) + 5%Distance from face 9 Readings

.1” 1684

.5” 14361” 11642” 775

Standard Features:PPTurnbuckle and hex head arm provided

for magnetic element adjustment

PPStainless steel end flanges available.

PPVertically mounted space saving motor.

PP7 gauge stainless steel drumskin.

PPVertical scale magnetic indicator.

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* A simple and economical quality control tool used in testing tailings discharge for magnetic losses.

* A super strong rare earth magnet attracts ferrous particles to the polished stainless steel tester face.

* The collected ferrous particles are drawn down the stem of the tester and collected in the inspection tray by extending the plunger handle.

STEM DIA. TRAY DIA. OVERALL LENGTHDIMENSIONS 1” 3.5” 9.5”

LABORATORY MAGNETIC TESTERLABORATORY MAGNETIC TESTERA Super Strong Magnetic Tool

MAGNETIC TUBE TESTERMAGNETIC TUBE TESTER

Standard Duty Heavy Duty

For the laboratory whereFor the laboratory wheremagnetic content matters.magnetic content matters.

Demagnetizing Coils eliminate flocculating of separatedheavy media magnetics. Many diameters offered.

48” Dia. Double Drum Type

4740 W. Electric Ave. Milwaukee, WI 53219414/672-7830 414/672-5354 Fax

www.dingsco.com

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