How to choose a fan
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The hot air furnace is at a slight negative pressure, and the 800°C gas that emerges proceeds to the next processing step; the pressure required in that downstream step is 800 Pa gauge pressure. What should I do? Add more fans? But are there fans that can reach such high temperatures? Or there might be other ways to solve it.
Install a cold air bypass on the hot air duct to introduce cold air
Wouldn’t that lower the temperature? The gas downstream requires a high temperature
1. High-temperature fans at 800℃ do exist, but they have high temperatures, large sizes, and low efficiency; it’s best to use them as little as possible； 2. It is recommended to use a positive-pressure hot air furnace, with the appropriate positive pressure downstream
Positive-pressure hot blast stove? Can that manufacturer do it? Thank you
There are many options; most of them can be used. For our own projects, we have both positive-pressure and negative-pressure systems. What size of hot air furnace do you need?
Place the fan at the end and use it to draw in the hot air; 800 degrees Celsius isn’t a problem – it just means higher costs, but we have done this many times before.