FAQ for Experts. Answers by Experts.

28

How can multiple machines be supplied with different material?

Scematic representation of a machine related conveying system

Scematic representation of a machine related conveying system

mo explains the concepts of multi-point conveying systems

If multiple machines in plastics processing need to supplied with different plastics, then normally the installation of a multi-point conveying systems would be sensible. …


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27

How does the material reach the processing machine?

Different versions of stand-alone material loaders for vacuum conveying: Venturi material loader METRO VL (lower left) and METRO HES 50 (middle) for throughputs of up to 50 kg/h back and right material loaders of the METRO HBS range to be connected to a separate blower station.

Different versions of stand-alone material loaders for vacuum conveying: Venturi material loader METRO VL (lower left) and METRO HES 50 (middle) for throughputs of up to 50 kg/h back and right material loaders of the METRO HBS range to be connected to a separate blower station. …


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26

What are the different types of pneumatic conveying?

Schematic representation of a conveying system

Schematic representation of a conveying system

mo explains how vacuum material loaders work

The two main conveying systems are pressure and vacuum conveying for pneumatic conveying within the plastics industry. …


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25

Which types of material conveying are relevant for plastics processing?

The most important conveying principle in plastics processing in pneumatic conveying, where the material is conveyed with air

The most important conveying principle in plastics processing in pneumatic conveying, where the material is conveyed with air

mo explains the procedural principles of bulk material conveying

Hydraulic, mechanical, and pneumatic conveying systems are options for material handling in the plastics industry, in regards to the conveying of bulk material. …


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24

Which criteria need to be considered for material flow?

Silos

mo explains some of the significant aspects for the concept design

The set-up of an economically sustainable as well as technically sensible material supply concepts start with the storage of the source material. …


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23

What is important for material flow in plastics processing?

Conveying line

mo explains the background information and details of plastics conveying

Now that mo’s corner has dealt with the dosing and drying of plastics extensively, this issue will turn to the third chapter of material handling in plastics processing with the topic “conveying”. …


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22

How does drying work?

Moisture content in g/m³ at various dew-points

Moisture content in g/m³ at various dew-points

mo explains the physics of drying

Drying material means removing its moisture, which sounds very simplistic. …


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21

How does the dew-point impact plastic granulate drying?

Moisture content [g] in m³ air at various dew-point temperatures.

Moisture content [g] in m³ air at various dew-point temperatures.

mo explains the correlation between dew-point and (residual) moisture

To recap, there are four key parameters involved in drying plastic granulate: …


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20

What other drying options are there?

Blanketing bins keep granulate dry

Blanketing bins keep granulate dry (photo: motan)

mo explains: drying cabinets, blanketing bins, infrared dryers, and vacuum dryers

As is the case with many fields of industry, when it comes to drying plastics, there are common, and less common, technologies. …


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19

How do compressed-air dryers work?

Compressed-air dryers do not require desiccants, and are especially suited to drying small quantities of granulate. Pictured: a compressed air micro dryer, type LUXOR CAS with double-glazed drying hopper.

Compressed-air dryers do not require desiccants, and are especially suited to drying small quantities of granulate. Pictured: a compressed air micro dryer, type LUXOR CAS with double-glazed drying hopper. …


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