Ultra Compact Dispersing System (UCD)
Compact and Cost-Efficient Pulp Dispersion
The UCD system is designed for high-efficiency pulp treatment with a minimal footprint. It consists of only three main components: a screw press, an infeeder/steam heater, and a disperser. This streamlined configuration delivers the most compact design possible, reducing both plant space requirements and investment costs.
With a retention time of just 5–10 seconds and operating temperatures of up to 110°C (230°F), the UCD system ensures fast and energy-efficient processing.
The process includes key treatment steps for dewatering, heating, and dispersing, all optimized to enhance system performance and pulp quality.

Dewatering zone
Screw press
The screw press thickens the pulp from 3% up to 35% consistency. As the pulp becomes thicker, it enters the heating zone with less water. Because of this, steam use drops, and the dispersing result improves. In the end, higher consistency means lower energy use and better pulp quality.
Heating zone

Infeeder steamheater
The Ultra Compact Disperser (UCD) System is designed for efficient and space-saving pulp processing. It consists of only three machines, with pre-heating performed in a combined infeeder steam heater – the only step between the screw press and the disperser. This innovative setup provides the most compact and cost-efficient system design for modern pulp treatment.
Dispersing zone

Disperser
Inside the disperser, fibers pass through a narrow gap between rotating discs. Here, impurities break down into very small particles. The discs have a special devil-tooth pattern that is adjusted for each pulp type to protect the fibers. Furthermore, the operator can adjust the disc gap online with an accuracy of 0.01 mm for precise control.
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For further information and your personal presentation of our Krima Dispersers solutions contact us: sales@cellwood.se






