Cooling / KRC Rotary Cooler
When you need extreme cooling performance
Our rotary cooler’s patented design overcomes traditional cooling screws. New high-capacity and low-wear technology with flexible layout design brings significant cost savings for high-demand cooling applications.
The Kopar KRC-series Rotary Cooler is the latest expansion to our cooling portfolio, which already offers a range of cooling drums, conventional cooling screws and cooled drag chain conveyors on the market.
With its high cooling power, the KRC is best suited for extreme cooling needs. Main design utilizes mixing and retention time in such an optimum way that both heat convection and heat conduction are maximized, however, keeping the wear rate extremely low.
If you need extreme cooling performance, the KRC is the best available solution on the market.
The detachable panels of the KRC cooler facilitate easy and flexible operation. The panels can be removed, replaced, or rotated around as needed, allowing the rotor to be maintained without having to disassemble the entire unit. By swapping the positions of the panels, their wear can be evenly distributed.
Individual parts can also be refurbished and replaced as necessary, significantly extending the unit’s life and reducing purchase costs.
Watch our animated video showcasing the cooler’s operation and its benefits for detachable panels.
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Typical features of KRC cooling screw
Material in (°C)
900
Material out (°C)
50-200
Capacity (t/h)
10
References
52
Actual cooled materials: bottom ash, fly ash, burnt lime dust, activated carbon
Prime benefits of the KRC coolers are:
- Very high cooling power and capacity per screw
- Very low maintenance costs
(70-90 % lower than in conventional cooling screws) - Flexibility with respect to lay-out
- Modular structure for easy and quick maintenance
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Get the best cooling power with our KRC
Efficient cooling for ashes
The KRC is the best available solution on the market, for example, for bottom ash. Cooling power can be as high as 1 MW per cooling screw. As a result, the smouldering hot bottom ash can be efficiently cooled from a temperature of 900 °C to around 200 °C even at a high capacity of over 5 t/h. Furthermore, thanks to the high cooling power, fly ash can be easily cooled from a typical 250 °C down to well below 100 °C, de facto, below 50 °C. The range of cooled materials typically includes ashes from incineration processes.
KRC brings considerable savings
One Kopar Rotary Cooler can do the same amount of work as two conventional cooling screws. Therefore, the total CAPEX is lower. However, a significant difference in cost comes with substantially reduced operating expenses and maintenance expenses, which are reduced by more than half. The latest innovations of the KRC have resulted in excellent operational performance by avoiding clogging, fluidization and any other uncontrolled and unfavourable behaviour of the hot ash.
Technical specification
The range of KRC coolers consists of various sizes with typical cooling capacities ranging up to 10 t/h with high material inlets up to 900 °C. Outlet temperature typically varies between 160–250 °C, depending on the production capacity, specific heat capacity, particle size and cooling water parameters.
KRC also reduces the space needed for cooling equipment, therefore you can increase the cooling capacity easily without allocating more space for cooling applications.
Test how Kopar Rotary Cooler fits
your production plans.
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