XXemplary classification

ccost optimization

llight components

aallows increased grinding volume

ssimple installation

ssafe handling

concept

Applications

Cement mills - 2nd compartment Raw mills - 2nd compartment or classifying part DIN drilled mill shells (250x314mm) Mill diameter : 3.0m to 4.8m

Future developments : Mill diameter > 4.8m Non DIN drilled mill shells

250

314

Traditional classifying liners

Users feedback as per prior study

Thick plates (up to 50kg) difficult to handle hazardous to handle loss of grinding volume

Loss of classifying efficiency with wear non-reversible

Different plates to protect shell to classify media

Light plates (25kg max) for easy handling & assembly for safety

Constant classifying efficiency all through lifecycle

Working principle : media classification by spiral effect

LAB PICTURE

NUMBER AND POSITION OF SPIRAL & DEFLECTORS ARE DETERMINED BY PROCESS STUDY

OF MILL CHARACTERISTICS & OPERATING PARAMETERS AND COMPARED WITH LABORATORY AND INDUSTRIAL ON SITES TESTS

Xclass = 3 elements + 1 bolt

BASE PLATE

(IIA)

SUPPORT PLATE

(IIB)

DEFLECTOR

(IIE=CW / IID=CCW)

1 BOLT TYPE

(CL)

Base plate + Support plate = shell protection

LIGHT (base = 21kg / support = 25kg)

BOLTED

1 BASE PLATE & 1 SUPPORT PLATE WHATEVER THE DIRECTION OF ROTATION (clockwise or counterclockwise)

3 BASE PLATES & 3 SUPPORT PLATES COVER ALL MILL DIAMETER RANGE (3->3.7m / 3.8->4.7m / ->4.8m)

MAGOTTEAUX Hi Cr ALLOY > 56 Rc

Deflectors in spiral = media classification

LIGHT (15kg)

BOLTED

1 DEFLECTOR TO SUIT ALL MILL DIAMETERS

2 DEFLECTORS TO SUIT MILL DIRECTION OF ROTATION(clockwise/counterclockwise)

MAGOTTEAUX Hi Cr ALLOY > 59 Rc

Deflectors unique concept :

1

2

1

2

1

2

NO WEAR

LOW WEAR

NO WEAR

MEDIUM WEAR

1

2

the first one protects the second

12

Thus when 1 is used

give thema U turn

switch 1 & 2

to maintain constant classification

Why customerscustomers choose ?

1. GRINDING EFFICIENCY OPTIMIZATION (t/h OR Kwh/t)

2. LIGHT CASTINGS

3. EASY INSTALLATION

4. STANDARDIZED ITEMS (same mill diameter range = same castings)

5. QUICK SUPPLY (standard items out of stock)

Optimized grinding efficiency

Increased grinding volume

Increased absorbed power

Classifying liners Xclass3 -> 3,2m 68 mm 48 mm + 40 mm3,4 -> 4,2m 76 mm 48 mm + 56 mm4,4 -> 4,6m 86 mm 48 mm + 76 mm

Liners average thicknessMill diameter

Easy replacement of deflectors

Constant classifying efficient all through linings lifecycle

= 1% of liner's total weight

All deflectors

Major wear

= 5% of liner's total weight

= 1st 1/3rd of chamber

Deflectors in 1st 1/3rd of chamber

Optimized grinding efficiency

Light castings

For faster & safer installation

Mill diameterClassifying liners Xclass

3 -> 3,2m 40 kg 25 kg3,4 -> 4,2m 43 kg 25 kg4,4 -> 4,6m 56 kg 25 kg

Plates maximum weight

BEFORE NOW

Limited & standardized items

For quick delivery & easy inventory management

Base plates 3 1 for each dia range

Support plates 3 1 for each dia range

Deflectors 2 1 clockwise / 1 countercw

Accessories 1 bolt type c/w nut, bolt & washer

SAFE

EASY &

& QUICK

We saved 4.000 on our installation budget

The new lining wasdelivered in 8 weeks

So far, 23 Xclass liners have been installed. 12 more to come

BASE PLATES, SUPPORT PLATES & DEFLECTORS ON STOCK

PLATES FOR DROP-OUT MANHOLE -> LINER IS CONTINUOUS

PLATES FOR DROP-IN MANHOLE -> MADE TO MEASURE

PRACTICAL ASPECTS

PRACTICAL ASPECTS

ACCESSORIES M30X2 BOLTS c/w NUTS & 2 WASHERS (+ bushing if necessary)

CLCLCLCL

PRACTICAL ASPECTS

ACCESSORIES M30X2 BOLTS c/w NUTS & 2 WASHERS (+ bushing)

39 > 33 36 > 33

BUSHING C19