The Plast Agglomerator

The proven system for the continuous production  of free flowing granules from thermoplastics of all kinds.

The standard Plast-Agglomerator system consists of the following processing steps:  Granulating, Pneumatic conveying, Storing, Feeding, Agglomerating, Hot-melt granulating, Pneumatic Conveying, Pre-cooling, Air classifying, Transport, Cooling

Characteristics

• Excellent free-flowing agglomerate with high bulk density

• Material-gentle agglomeration by means of frictional heat

• Continuous process

• Fully automatic start from a cold condition

• Low space requirement due to compact design

• Fully automatic continuous operation

Construction

The agglomerator with its feed hopper is the main part of the PALLMANN Plast-Agglomerator System. The machine housing is a sturdy steel welded design, and for easy access to the agglomerating chamber, the front door with the feed screw slides open easily.

The housing and the motor are bolted onto a common frame.  The machine is driven by V belts.  The shaft and the bearings are designed for around the clock operation.  Fumes and odors from water, spinning oils, foaming agents, printing ink, etc, can be vented at a central location.

The feed hopper, in sturdy sheet metal construction, is a self-contained unit and is equipped with horizontal agitators and a special feed screw.  The cleaning door allows quick and easy access to the inside of the feed hopper.  All doors and flaps have safety limit switches.

Options like low and high level indicators, pressure sensors, speed control, construction in special materials, service platforms with ladder etc, are available.

Principle of Operation

From a feed hopper an auger feeds the material to the agglomerator chamber.  Agglomeration is done in a fraction of a second, right below the melting point for the material.  The agglomerated material is pressed through the holes of a die.

The retention time is the agglomerating chamber is only a fraction of a second.  Material exiting the die is cut by rotating knives and then conveyed by air to a cyclone separator into the hot melt granulator.  Here, the material is granulated to equal-sized granules.  The hole size of the selected screen determines the size of the granules.

Depending on the material and the application, fines can be separated and returned ton the agglomerator by means of a gravity sifter.  Additional cooling of the granules can be obtained by using a granules cooler.

The control

The functions of the single system components are controlled from a centrally located control box.  An overload control automatically regulates the material feed to the agglomerator.  The system is controlled by means of stored program control (SPC).

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