PASTILLATION

Pastillation provides an efficient, cost effective process for the continuous converting of molten products into uniform, round and dust free granules ideal for bagging, transporting and bulk material handling systems.

The pastillation process has the flexibility to produce pastille sizes ranging from 1-25 mm in diameter and with viscosities ranging from 5 – 30,000 mPas (cP), based upon processing conditions and need. From pastillator heads to complete turnkey units, up and down stream equipment, our company can provide customized solutions for your pastillation process. 

We do not only provide pastillation cooling belt units but also various pastillation units for existing cooling belt units as well as turnkey plants, which are exactly planned and designed in accordance to our customers needs.

Our company provides different pastillation processes. We choose the right one in consultation with our customers, after a close look at the characteristics of the product and at the process requirements such as performance and size of the pastilles.


THE ZN SYSTEM

The ZN system, predecessor the“DN”, from KAISER originated in 1953 making it the first pastillation process invented. The ZN system operates on a drop forming principle achieved through the up-and-down motion of the needle inside the nozzle. 

The pastille size is primarily determined by the diameter of the needle and nozzle, the liquid level inside the tub and the number of needle strokes.

 

 

ADVANTAGES

  • Low cost solution for low to medium capacities
  • Processing of extremely low viscosity products
  • Electrical heating capabilities
  • Gastight housing available
  • Feeding temperatures up to 400° C (752º F)

OPERATING PRINCIPLE

TYPICAL PRODUCTS

Acetanilide, Bisphenol A, Caustic soda, Disodiumtetrasulfide, Fatty acids, Fatty alcohols, Laurinlactam, Maleic anhydride, Monoglyceride, Neopenthylglycole, Paraffins, Pet food, Potassium soda, Succinic anhydride, TMA, TNT, TPP, Waxes, etc. 


THE GS SYSTEM

The GS system, originally developed in the 60ties by KAISER PBT, is designed for medium to high viscosity products.

Contrary to the ZN system, the needles are replaced by a cylinder and piston arrangement.

The up and down movement of the cylinder and piston allows the molten product to be deposited on to the belt creating uniform pastilles.

ADVANTAGES

  • Low cost solution for low to medium capacities
  • Processing of extremely low viscosity products
  • Electrical heating capabilities
  • Gastight housing available
  • Feeding temperatures up to 400° C (752º F)

OPERATING PRINCIPLE

TYPICAL PRODUCTS

Acetanilide, Bisphenol A, Caustic soda, Disodiumtetrasulfide, Fatty acids, Fatty alcohols, Laurinlactam, Maleic anhydride, Monoglyceride, Neopenthylglycole, Paraffins, Pet food, Potassium soda, Succinic anhydride, TMA, TNT, TPP, Waxes, etc.


ROLLOMAT®

The Rollomat® system, initially developed in 1989 by KAISER, covers the widest viscosity range of all rotating pastillators.

The Rollomat® rotary depositor has an operating principle similar to a gear pump. The heart of this system is an inner-geared, hollow cylinder with nozzles positioned between the teeth. Along the lower portion of the hollow cylinder a pressing roll engages with the teeth of the hollow cylinder and the product is fed - at the designated rate - through the plug-in lance. From there it flows onto the rotating pressing roll and becomes sandwiched between the outer cylinder and inner pressing roll.

Each time the teeth of the hollow cylinder engages with the teeth of the pressing roll, product is pushed through the nozzles and onto the cooling belt. The Rollomat® has a heated product scraper (refeed bar) ensuring that the outer surface of the cylinder is clean when reaching the drop-off point.

ADVANTAGES

  • Ideal for running products with higher melting points
  • Lower operating temperatures
  • Wide range of product applications

OPERATING PRINCIPLE

TYPICAL PRODUCTS

Aluminium sulphate, Bitumen, Caprolactam, Castor oil, Chocolate, Chromic acid, Epoxy resin, Fertilizers, Ketonic resin, Modified stearic acid, Modified waxes, Petroleum resin, Phenolic resin, Polyamide resins, Polyester resins, Polyethylene waxes, PVC additives, Rosin resins, etc. 


ROLLOSIZER®

The rotating pastillation process Rollosizer® is our most recent development, and is complementing our other pastillations systems, when it comes to achieve high capacities on one unit with low viscosity products. For the design of the KAISER-Rollosizer®, we used some of the various advantageous features of the KAISER-Rollomat®, which is successfully in use since many years at various operations.

The drop-forming principle is a static heated cylinder with the inner product channel and the tubes for the heating medium. By means of a special product distribution bar, the product enters the cooling belt through the holes in the perforated outer cylinder.

The pastilles are generated by the overlapping of the holes in the product distribution bar with the holes in the outer rotating cylinder.

The product refeed bar collects the surplus material right after the drop-forming and pushes it back into the holes of the outer rotating cylinder.

The sealing of the product is done very similar to the design of the KAISER-Rollomat® by means of simple and easy to replace o-rings and soft packings and we abandoned all kinds of mechanical seals.

ADVANTAGES

  • Ideal for running products with higher capacities and low viscosities and if only one product grade shall be produced
  • The exchange of the hollow roller of the KAISER-Rollomat® and the rotating, perforated cylinder and of the product distributions pipes and pressing gear is possible with very little efforts, so each Rollomat® could be converted into a Rollosizer® and vice versa. That means all possible products which could be pastillated, could be produced with basically one pastillation unit

OPERATING PRINCIPLE

TYPICAL PRODUCTS

Sulphur, Urea, Waxes, Paraffins, Caprolactam, Fatty alcohols and fatty acid products, etc.