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Dosing of peanuts for continuous feeding of a grinding line

  • Essai
  • Plan d'accès
Case study reference:
Dosing of peanuts for continious feeding of a grinding mill

Processed products: roasted/caramelized peanuts

Manufacture of coated peanuts


This factory develops and markets chocolate based products.

The installation consists of supplying groundnuts to an existing grinder in the customer's chocolate workshop. The feeding must be carried out in continuous batch, with a regulation of the feeding rate.

Big bag discharger
The peanuts are delivered in one ton big bags. An EasyFlow® big bag emptying station is installed to supply the crushing stand
The big bags are placed using an electric hoist and a handling cross. A spike to burst the bottom of the big bag is integrated on the big bag unloading station and permits the opening of the big bag without direct action by the operator. It is particularly used when using big bags with no spout. Once the big bag is placed on the big bag discharging station, the operator lowers the big bag using a hoist to let it rest on the spike located on the dispensing tray. The force exerted by the 'material' weight on the knives makes it possible to cut the bottom of the big bag instantly.
A collecting buffer hopper is installed under the big bag discharging station

screw feeder peanut big bag discharging palamatic process
peanut screw feeder big bag discharging palamatic process

The hopper is located above a second hopper and is provided with a pneumatically operated slide valve that allows the downflow of powders to be interrupted at any time. 
It feeds a second hopper implanted on load cells which ensure a precise weight dosage of peanuts, i.e. a flow rate of 70kg/h. A screw feeder is positioned under this hopper to feed the downstream process.
The EasyFlow® big bag emptying station is connected to a blowing pump to transfer the peanuts to the conveying cyclone pneumatic conveying dense phase vacuum VFlow®.

Palamatic Process has paid particular attention to the design of the equipment regarding accessibility, cleaning and safety of the equipment. 
Regulation of the feed rate, with an accuracy of +/- 1%

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Big bag discharging - Telescopic tube - Easyflow EF1

Telescopic tube, Electric hoist loading, Forklift truck loading, low profile/independent loading

Pneumatic conveying - Dense phase vacuum - VFlow® - 5 models

All bulk materials, No material degradation, Line purge

Screw feeder - 4 models from D10 to D13

Weight or volumetric dosing system, 24 to 6 458 liters/h.

Slide valve

Extraction and gravity dosing
production line palamatic process

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