| abstract |
The utility model relates to an anti-vacuum strip material vacuum device for a furan phenol production device, comprising a first-stage steam jet vacuum pump, a system vacuum buffer tank, a screw vacuum pump, a roots vacuum pump, a condenser and an ejector. The utility model adopts the double roots screw vacuum pump unit and the first-stage steam jet vacuum pump to be connected in series through the vacuum pipeline. The utility model can reduce the phenomenon of rotor sticking and coating wear of the double Roots screw vacuum unit caused by the influence of the system vacuum material during the operation of the single double Roots screw vacuum unit, and prolong the service life of the vacuum unit. |