https://patents.google.com/patent/CN112360749A/en
CN112360749A - Flowing back has multistage centrifugal pump of filter residue slagging-off function...
The invention discloses a multistage centrifugal pump with the functions of filtering residues and removing slag in discharged liquid, which relates to the...
centrifugal pumpslagging offflowingbackmultistage