| 摘要 |
A pump for pumping high consistency materials such as paper pulp having a consistency of about 8% or more. The pump includes a pair of rotors disposed in a pumping chamber, and a number of blades extending radially from each rotor, each blade mounted for cooperation with a circumferential portion of the other rotor in sequence during rotation of the rotors in operation. The blades are suitably constructed so that during normal pumping of high consistency material they can produce a head of about 10-170 ft., remaining rigid during normal pumping. However, the blades will flex out of engagement with tramp metal or the like when encountered thereby so that no damage to the pump components results during normal operation. A relatively large clearance can be provided between each blade and its cooperating circumferential portion of the opposite rotor. The pump is especially utilizable in pulp treatment systems between vessels adapted to have high density cellulosic pulp therebetween.
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