CLEANERS GRADERS Emile MAROT  

 

    Emile MAROT Pre-cleaners simply and quickly remove large particles contained in the grain.
    The grain enters the rotating drum whose perforations allow the grain to pass through while retaining the large-size waste which exits from the bottom of the drum.
    Pre-cleaners are essential for the correct operation of dryers to avoid them fouling up and prevent energy wastage.
    The choice of perforations is made according to the nature of the grain to be worked, its humidity levels and the properties of the waste to be removed.
    The initial grids can be used, if necessary to remove small-size waste products.
    The large surface areas of the grids whose perforations are continually cleared enable flow rates of 35 to 400 tonnes per hour.

    The following table summarizes possible equipment combinations: Dust removers on Grid pre-cleaners, Pre-cleaners on dust removers or suction cleaners on pre-cleaners

 

PRE-CLEANERS / MODELS

PN601

PN1002

PN1253

PN1503

PN2004

PN3003

PN4004
Flow rate (t/h)

35

60

90

200

250

250

400
Nb of grids

1

2

3

3

4

3

4
Siev diam

805

805

805

1260

1260

1610

1610
Grid area(m²)

2,50

5

7,5

12

16

15

20
Power(KW)

1,5

1,5

1,5

4

4

11

11
Lengh (mm)

2420

3570

4720

4955

6105

5231

6381
Width(mm)

1120

1120

1120

1700

1700

2000

2000
Height (mm)

1660

1660

1660

2175

2175

2500

2500
Weight empty (kg)

640

770

960

2010

2260

3300

4000
Flow rates for pre-cleaning maize with 35% humidity
    EACs remove lightweight products and separate broken kernels and large-size waste from the good grain.
    These operations are carried out by double-acting suction followed by a rotating drum.
    The raw product is spread out in a uniform layer and a current of air blows through it.
    The proportion of lightweight products driven off is altered by adjusting the suction power.
    The heaviest particles settle in the holding chamber and are extracted by a screw.
    Lightweight particles are expelled (V) by suction. A direct output P enables the work to be stopped there if desired.
    The grain then flows into a rotating drum with interchangeable grids.
    The first of these remove broken kernels and those following let the good grain pass through.
    The largest elements exit from the bottom of the drum.
    The succession of grids with different perforations make these devices remarkably useful for all types of grain,
    at flow rates from 5 to 400 tonnes/hour.

 

CLEANERS / MODELS
Flow rate (t/h)

Nb

of grids

Drum

diam (mm)
EAC 53
5
3
460
  
EAC 153
15
3
630
  
EAC 354
25
4
630
  
EAC 503
50
3
805
  
EAC 704
70
4
805
  
EAC 1103
130
3
1260
  
EAC 2004
200
4
1260
  
EAC 2505
250
5
1260
  
EAC 3003
220
3
1610
  
A4010 / C4.1610
300
4
1610
  
A4010 / C5.1610
400
5
1610
  
Flow rates for wheat PS 0.75 with 2% impurities.
    Emile MAROT Graders separate grains depending on their size.
    The precision of the sorting process is obtained by means of a rotating drum whose angle and rotation speed can be changed.
    The device is chosen according to the number of products and flow rate desired.
    The first criterion determines the number of sections required (3 to 5) and the second, the diameter of the drum (630 to 1,610 mm).
    When the number of grain categories which must be obtained is very high, as for coffee, grading is achieved using a combination of modular devices.

 

GRADERS / MODELS

Flow rate

(t/h)
Nb of grids
drum diam (mm)
Grid area (m²)
Power (kW)
Weight (kg)
  
 
 
3/630
3
3
630
3.9
0.75
435
  
4/630
4
4
630
5.1
0.75
520
  
5/630
6
5
630
6.4
0.75
605
  
3/805
10
3
805
7.5
1.5
960
  
4/805
14
4
808
10
1.5
1170
  
5/805
18
5
805
12.5
1.5
1380
  
3/1260
20
3
1260
12
4
2010
  
4/1260
30
4
1260
16
4
2260
  
5/1260
40
5
1260
20
5.5
2510
  
3/1610
35
3
1610
15
11
3300
  
4/1610
45
4
1610
20
11
4000
  
5/1610
60
5
1610
25
15
4700
  
Flow rates for barley at 75% humidity
  
    The Suction cleaners are used to remove the grain and the light waste it contains whilst retaining the heaviest products for subsequent retrieval.
    They are used alone or in association with a grid pre-cleaner or a trash catcher.
    The grain, introduced into the device by feed hopper G, emerges as a uniform sheet by means of an adjustable shutter.
    A current of air blows through the sheet removing lightweight products.
    A distributor adjusted by a thumb-wheel ensures straw products are regularly removed.
    The heaviest products fall into a holding chamber and are removed by screw M while the others are ejected.
    These pre-cleaners are compact and integrate very easily into reception systems without limiting their flow rate: 70 to 500 tonnes per hour.

 

SUCTIONS / MODELS

Flow rate

(t/h)
Cleaning (t/h)
Suction (m3/h)
Power (kW)
Length (mm)
Width (mm)
Height (mm)
Vol (m3)
Weight (kg)
 
A 350
45
40
6000
2.2
2120
1295
1290
3.5
250
A 510
90
70
6000
3
2590
1490
1685
6.5
350
A 2010
250
200
12000
0.5+7.5
2635
2300
2745
13.6
660
A 3010
300
250
16000
0.5+10
2914
2700
2745
21.6
980
A 4010
500
400
22000
0.5+22
3185
2595
2855
23.6
1220
Flow rates for wheat PS 0.75 with 2% impurities
    Emile MAROT Dust removers are particularly useful for simple particle removal.
    The grain is laid out in a uniform layer by a counter-weighted hatch, then a current of air is blown through it.
    The proportion of light waste extracted is adjusted by setting the suction power and the additional air intake shutter situated on the upper casing.
    These dust removers may be easily used anywhere in the handling circuits due to their small size.
DUST REMOVERS / MODELS
Flow rate (t/h)

Suction (m3)

POWER (kW)
BD 600
60
2700
1.5
  
BD 1000
100
6000
3
  
BD 2000
180
12000
7.5
  
Flow rates for wheat PS 0.75 at 16% humidity with 2% impurities

 

 

 

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