Waste PP PE Pelletizing Machine With High Automaticgrade

Waste PP PE Pelletizing Machine With High Automaticgrade

PROCESSING FLOW:

The strand cutting granulating process is one of the most common application for granulating. It is widely used for several kinds of material. The basic pelletizing process goes through the following path:

STRUCTURE OF GRANULATING LINE:

The strand cutting pelletizing line has a relative stable structure. According to the individual application, each component may have different importance for the whole pelletizing line. This needs a further discussion around the customized structure solution. The basic structure and their function of the whole line are listed as following.

Feed system: dossiers and feeds the resin and ingredients into the extruder for mixing and melting.

Extruder: mixes and melts all the materials, which have been fed into the extruder.

Strand die: shapes the molten polymer into strand.

Water bath: cools down the extruded strands into solid state.

Air knife/ Air stripper: removes the moisture on strand surface.

Pelletizer: chops the strand to defined length.

Classifier: filters out the over-and under-sized pellets and collects the pellets, which fit the pellets specification.

Conveys system: transports the first quality pellets for packaging.

ADVANTAGES AND DISADVANTAGES OF STRAND CUTTING PELLETIZING:

Totally understanding the strand pelletizing process is conducive to figuring out whether the process fits the production condition or not.

As a universal granulating method, the strand pelletizing has following advantages:

• low equipment cost

• easy maintenance

• suitable for most of the materials

Disadvantages are listed in comparison with other pelletizing methods such as water ring or under water pelletizing :

• Relatively low automation grad

• high energy consumption

• more human resource needed