POWDER AND GRANULE SAMPLERS ON PNEUMATIC CONVEYORS

Piston samplers on pneumatic conveyors

This device takes a “specimen” of the product being transported at a point in the pipe.

The frequency of sampling ensures greater representativeness.

Préleveurs de poudres et granulés sur transport pneumatique

Principle

At rest, the passage of the product is completely free.

Sampling is carried out by the penetration of a piston open at the end to capture the product over a given section. The sample flows into the duct until it fills (maximum sample volume). Capacity adapted to requirements.

Once the piston is retracted, gas is injected into the implant boss to clean the sampler and propel the sample if necessary.

How it works

Each sampler is designed and sized to meet the customer's needs.

We adapt the sampler:

  • Transfer conditions,
  • The type of product,
  • The volume of sample required for each sample.

An electrical control box equipped with a touch-sensitive display and a PLC enables :

  • Ensure and secure the operating cycle.
  • Set the sampling frequency.

Additional functions, such as pot presence and sample weighing, can be combined.

Equipment

All components are made from materials suited to the product and operating conditions (generally stainless steel) and are particularly robust.

The piston sampler with cyclone

When waiting to be tapped, the piston is retracted, leaving the DN 250 circuit completely free.

Direct debit :

  • The extended piston establishes an auxiliary air/pellet circuit which is separated in a cyclone.
  • The volume collected depends on the time during which the sample is taken.
  • An adjustable automatic sequencer can be integrated into the sampling cycle.
  • At the end of sampling, a purge sequence is used to empty the sampler/cyclone connection tube.

A stand-alone control panel is used to control the sampling cycle and program the settings required for the operation.Material: 304 L stainless steel

Prélèveur de granulés et de poudres à piston avec cyclone

In addition to our pneumatic transport sampling systems, FORRATECHNIC also offers samplers for hoppers, silos, big bags and other types of storage.

Find out more