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Belt and ribbon mixer - Discontinuous

  • Essai
  • Plan d'accès
Horizontal ndustrial mixer - Bulk materials and powder handling
Description

Ribbon mixer - Low viscocity dry powders and pasty mixtures

Ribbon or belt mixing technology allows high-quality mixing at low speed. The materials are preserved and the risk of overheating is reduced. The resulting low attrition allows to maintain the initial characteristics of powders or granules blended, such as density, particle size or shape. The mixing principle is based on cross and repeated exchanges in the longitudinal direction established by the helical belt of the rotor. The slow movement of rotation is particularly suitable for heat-sensitive, fragile and abrasive materials.

Discontinuous belt mixers consist of a rotor shaft with opposite coils, located in a mixing tank.

Batch belt and ribbon mixer are available in 2 versions:

  • Loading through hopper: MRRA
  • Loading through cuff: MRRC

Operating mode
The external axis conveys the material from both sides towards the center, while the inner axis conveys the material to the sides, producing a convective mixing. The product is gently mixed in a relatively short time: from 5-15 minutes depending on the complexity of mixtures and the amount of each ingredient. 

operating mode mixer ribbon

   Constitution of the belt and ribbon mixer:

  • A central filling opening or alongside the tank
  • A central outlet opening
  • A vent mouth
  • Two closing plates for the ends of the tank to support the end bearings (adjustable and equipped with a shaft sealing unit)
  • A gearbox with transmission
  • Complexity of mixtures
    3
  • Rate
    2
  • Hygiene
    3

Equipment advantages

- Homogeneity of the mixture

- Excellent batch reproducibility

- Gentle treatment of the material without damaging it

- Possibility of complete discharge

- 100% loading rate possible
 

Media

View our equipment in photos

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Features

Technical specification

Technical details:

  • Sizes: from 75 to 15,000 liters
  • Motorizations: from 1.1 kW to 45 kW
  • Capacity: from 2 to 8 batches/h. (depending on the recipe and machine configuration)
  • Mixing time: 5 to 15 minutes
  • Possibility of manufacturing in high-strength steel, stainless steel or special materials with a heating or cooling casing.
  • The discharge door reduces any retention of unmixed materials
  • The seal ensures the tightness of the tank
  • The discharge door is integrated in a pipe allowing connection to any return system (gravity rotary valve, screw...)
  • The operation of the discharge door is carried out by a pneumatic control system including: pneumatic cylinder, distributor, coil, limit switch
  • Dispersion 1 kg/ton

Technical characteristics of the mixing tank:

Total volume of the tank 75 150 300 550 800 1,100 2,000
Max. net capacity in liters* 56 105 210 385 560 770 1,400
Engine power in kW 2.2 3 4 5.5 7.5 11** 13**

*according to density of the product

Loading through hopper mixer dimensions: MRRA

Image
Ribbon mixer hopper - Bulk materials and powder handling
Models A B C D Net capacity dm³ Weight when empty in kg
MRR-A 75 1,300 611 670 1,051 56 160
MRR-A 150 1,460 670 763 1,271 105 270
MRR-A 300 1,840  770 930 1,393 210 400
MRR-A 550 2,150  930 1,133 1,585 385 690
MRR-A 800 2,350  980 1,154 1,602 560 850
MRR-A 1100 2,690 1,100 1,260  1,754 770 1,200 
MRR-A 2000 2,920 1,340  1,465 1,975 1,400 2,400
MRR-A 3000 3,920 1,340 1,465 2,090  2,100 2,700
MRR-A 4800 4,520 1,500 1,725 2,199 3,360 3,800
MRR-A 6000 4,820 1,600 1,876 2,325 4,200 4,400
MRR-A 8800 5,390 1,810 2,067 2,665 6,160 5,300
MRR-A 10500 5,630 1,910 2,413 2,862  7,350 6,900
MRR-A 15000 6,124 2,110 2,706 3,190 10,500 8,000

Loading through cuff mixer dimensions: MRRC

Image
Ribbon mixer hopper - Bulk materials and powder handling
Models
A B C Net capacity dm³ Weight when empty in kg
MRR-C 75 1,300 611 649 56 160
MRR-C 150 1,460 670 754 105 270
MRR-C 300 1,840  770 889 210 400
MRR-C 550 2,150  930 1,075 385 690
MRR-C 800 2,350  980 1,151 560 850
MRR-C 1100 2,690 1,100 1,278 770 1,200 
MRR-C 2000 2,920 1,340  1,455 1,400 2,400
MRR-C 3000 3,920 1,340 1,455 2,100 2,700
MRR-C 4800 4,520 1,500 1,750 3,360 3,800
MRR-C 6000 4,820 1,600 1,860 4,200 4,400
MRR-C 8800 5,390 1,810 2,130 6,160 5,300
MRR-C 10500 5,630 1,910 2,160 7,350 6,900
MRR-C 15000 6,124 2,110 2,445 10,500 8,000
Options

Available options

  • Industrial mixer - Bulk materials and powder handling
    Industrial mixer - Bulk materials and powder handling

    Dispersers

    For agglomeration, granulating and coating processes.
    Dispersers, also known as choppers or knives, are tools that break the lumps and ensure high quality and homogeneous final product.

  • Industrial mixer - Bulk materials and powder handling
    Industrial mixer - Bulk materials and powder handling

    Loading through cuff

    Cylindrical tank

  • Industrial mixer - Bulk materials and powder handling
    Industrial mixer - Bulk materials and powder handling

    Loading through hopper

    Trough shape tank

  • Pneumatic sampler on industrial mixer - Bulk materials and powder handling
    Pneumatic sampler on industrial mixer - Bulk materials and powder handling

    Pneumatic sampling device

    Validation of the quality of the batch.
    The sampler extracts a sample of the mixture to verify its quality.

  • Industrial mixer temperature sensor - Bulk materials and powder handling
    Industrial mixer temperature sensor - Bulk materials and powder handling

    Temperature sensor

    It is set on the mixing tank.
    The temperature sensors transmit reliable temperature measurements for applications dealing with sensitive materials (eg. for sanitary/cosmetic/pharmaceutical applications).

  • Pressurized tank for liquid addition
    Pressurized tank for liquid addition

    Pressurized tank for liquid addition

    A pressurized tank allows the addition of liquid during the mixing phase.
    In order to ensure the introduction of fluids (oil, fat, aromas ...), we provide pressure tanks or metering pumps to ensure the spraying of the liquid amidst the mixture. This option must be combined with the implementation of choppers/dispersers.

  • Oxygen nitrogen insufflation
    Oxygen nitrogen insufflation

    Air or nitrogen blowing box

    For the management of air or nitrogen blowing in.
    The pneumatic control box manages the speed and pressure of the air or nitrogen and ensures the sealing of the bearings.

  • Double walled for heating and cooling
    Double walled for heating and cooling

    Heating / cooling double casing 

    To control the temperature of the mix inside the mixer.
    The double casing of the mixer allows heating of its contents through the circulation of the coolant fluid in the double casing or cooling by circulation of chilled water.

  • Industrial mixer - Bulk materials and powder handling
    Industrial mixer - Bulk materials and powder handling

    Steel, stainless steel, food-grade paint manufacturing

    The manufacturing materials are adapted to your process constraints.

  • Industrial mixer oxygen nitrogen insuflation - Bulk materials and powder handling
    Industrial mixer oxygen nitrogen insuflation - Bulk materials and powder handling

    Detached pressurized bearing with air or nitrogen blowing

    To ensure the sealing of the shaft.
    To avoid the introduction of fines in the rotation mechanism of the mixing shaft, air or nitrogen is blown continuously at low rate and low pressure through the lantern ring.

  • Industrial mixer treatment surface - Bulk materials and powder handling
    Industrial mixer treatment surface - Bulk materials and powder handling

    Surface treatment

    Wear lining (Hardox), carbide charging of the tools, wear-resistant coating with easily replaceable plates, ceramic coating, Teflon® coating, stainless steel mesh.

  • Industrial mixer - Bulk materials and powder handling
    Industrial mixer - Bulk materials and powder handling

    Inspection hatch

    To monitor and control the mixing of bulk materials.
    The inspection hatch enables to control and validate the quality of the materials mixing. In addition, the hatch provides easy access to all internal parts of the industrial mixer to ensure complete cleaning.

Case studies
  • Cementation of nuclear waste

    Processed powders: Cement + filler, lime and calcium nitrate - Cementation of nuclear waste - This process is intended for the cementation of fines and resins
  • Aromatic herbs conditioning

    Processed powder: dried grass seeds - Seeds conditioning - Installation of a double discharge station: big bag emptying and container emptying for mixer feeding as well as a double filling station:...
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