Cold air fans suck cold air out of the environment and transport it crossways to the hot-gas flow through the cooling elements. A temperature control element switches the necessary number of cold air fans on.
- a. Dirty gas intake
- b. Dirty gas outlet
- c. Dust outlet
- d. Cooling air intake
Why heat exchanger/gas cooler?
A Cassette-type heat exchanger/gas cooler with pre-heating of cooling air up to 600C (1,112F). The cooling air must be preheated if there is any risk of the temperature on the cooling elements dropping below the acid dew point when cooling hot process gases.
- Cooling of hot process gases up to 600°C
- Modular design
- Heat recovery
- Low maintenance
- Easy to exchange cooling elements
- Leak-proof welded construction
- With cooler cleaning for sticky dust
- Short assembly times =low assembly costs
The cooling elements are designed so, that the cooler cannot become clogged up with dust. An automatic cleaning device is installed for sticky dust.
How the cleaning system works
A pendulum device with cleaning chains is moved by a gear motor from one side of the hood to the other. The cleaning chains scrape adhering dust off the cooling elements.
The parking time depends on the type of dust and the dust content in the polluted process gas. The path of the chain holder is limited by two proximity switches.