The difference and application between gasification fan and Roots fan**
**Keyword * *: Is gasification fan the same as Roots blower
**1、 Differences in working principles**
-Roots blower: a positive displacement fan that delivers gas through rotor engagement with a constant air volume;
-Gasification fan: mostly centrifugal, generates power through the rotation of the impeller, and the air volume varies with pressure.
**2、 Performance comparison**
|* * Parameters * * | Roots blower | Gasification blower|
|----------|----------|----------|
|Pressure range | 9.8-98kPa |<50kPa|
|Airflow stability | high | low|
|Applicable media | Clean air/biogas | Dust containing gases (such as fly ash transportation)|
**3、 Typical application scenarios**
-Gasification fan: used for pneumatic ash conveying and chemical powder conveying in power plants;
-Roots blower: sewage treatment, aquaculture aeration.
**4、 Misconceptions in selection**
-Error case: A factory mistakenly used Roots blower to transport lime powder, resulting in rotor wear (wear-resistant gasification blower should be selected).
