【発明の名称】真空ポンプ組込み式懸濁液ポンプ

Title:

【発明の名称】真空ポンプ組込み式懸濁液ポンプ

Document Type and Number:

Japanese Patent JPH06503394

Kind Code:

A

Abstract:

PCT No. PCT/SE91/00865 Sec. 371 Date Jun. 14, 1993 Sec. 102(e) Date Jun. 14, 1993 PCT Filed Dec. 16, 1991 PCT Pub. No. WO92/11458 PCT Pub. Date Jul. 9, 1992.A pump for pumping pulp, comprising a first impeller (12) for pumping the pulp in fluidized state, and a gas evacuation pump (23) of liquid ring type comprising a pump housing (24) with a chamber (25) and a second impeller (26) rotating therein for evacuating gas collecting in front of said first impeller (12) via a system of channels (20, 21, 22), said impellets (12, 26) being mounted on the same shaft (4) for common rotation. According to the invention the chamber (24) of the gas evacuation pump (23) containing a rotating liquid ring (29) is defined circumferentially by an element (40) which is movable in relation to the second impeller (26) and the axis of rotation (5) thereof by means of an actuator (48, 50, 51), said element (40) being adjustable by the actuator (48, 50, 51) in three different operating positions dependent on the operating conditions prevailing for the pump.

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