Heat Exchanger For Gas Cooling

Based on more than 30 years of experience, the air-to-air heat exchanger is a proven product for handling clinker cooler excess gas.

Heat Exchanger
  • The basics
  • Design
  • Maintenance

Key benefits

  • Long lifetime of downstream filter bags
  • Low power consumption for the cooling fans
  • Minimal maintenance demands
  • Proven performance and design
  • Low initial costs and fast installation on-site
  • Future-proof installation that can be extended to handle increases in production

Operating principles

The excess gas from the clinker cooler is ventilated to the heat exchanger where it passes evenly through vertical parallel tubes. Cooling air is blown horizontally over the outer surface of the tubes by axial flow fans. The upper fan row has full-speed cooling fans whereas the rest of the fan rows have a common frequency drive per row. The outlet temperature is controlled by changing the speed of the fans and the number of rows in operation. This method minimizes the power consumption.

Performance & Design

The heat exchanger is designed to handle cooling from 500°C to 120°C (or any range in between) and the size can be made for any kiln and cooler known in the industry. The design of the heat exchanger includes pre-assembled modules and fans, making it fast to install on-site and reducing initial costs. Small axial fans are used to cool the hot excess gas, reducing operating costs due to decreased power consumption. The optimised design also keeps civil costs low.

Design flexibility

The heat exchanger can be configured to allow gas to enter from either the side or the top, according to the layout of your system. The tube surface area is adjusted to provide optimum performance, depending on the desired temperature drop and the expected gas flow. The basic heat exchanger can easily be extended to meet your requirements. Modules can be added to match an increase in production, making this a future-proof solution to cool excess gas efficiently.

Easy maintenance

Easily replaceable wear parts at each tube inlet, where wear is known to occur, make maintenance easy. In addition, each fan motor can be maintained while the remaining heat exchanger is in operation.