Device for pumping gaseous suspensions, particularly fiber suspensions

A technology of fiber materials and suspended matter, which is applied to parts of pumping devices for elastic fluids, pumps for special fluids, liquid fuel engines, etc., can solve the problems of not setting fluidized rotors, etc., and save additional equipment Effect

Active Publication Date: 2010-12-08
ANDRITZ AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But there is no separate fluidization rotor

Method used

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  • Device for pumping gaseous suspensions, particularly fiber suspensions
  • Device for pumping gaseous suspensions, particularly fiber suspensions
  • Device for pumping gaseous suspensions, particularly fiber suspensions

Examples

Experimental program
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Embodiment Construction

[0017] figure 1 A pump 1 with a fluidizing rotor 2 with a hub 3 is shown. At the inlet end 4 , the surfaces of the blades 5 are arranged perpendicular to the axis of the fluidizing rotor 2 . Hydraulic inlet losses are thereby minimized, thereby increasing the efficiency of the pump. The fluidization rotor 2 is arranged in the suction connection 6 of the pump 1 , wherein the fluidized suspension, in particular a fibrous material suspension, is transported via the rotor to the pressure connection 7 . The fluidization rotor 2 protrudes here beyond the suction pipe connection 6 into, for example, a container from which the suspension is to be pumped, and this makes it possible for the suspension to be more easily introduced into the suction pipe connection 6 . The hub 3 of the fluidizing rotor 2 is fixed on the pump shaft 9 by means of screws 8 .

[0018] figure 2 The fluidizing rotor 2 according to the invention of the pump 1 is shown. It can be seen particularly clearly he...

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PUM

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Abstract

The invention relates to a device for pumping gaseous suspensions, comprising a fluidization rotor (2) having one or more blades (5), and a pump impeller and a pressure connector (7), wherein the fluidization rotor (2) is disposed in the intake connector (6) of the pump (1) and comprises a hub (3), the fluidization rotor (2) being free at the center on the inlet end (4) and the blades (5) acting freely without reinforcement or connection among each other. It is characterized in that the ratio of the free length (Fl) of the fluidization rotor (2) to the fluidization rotor diameter (Dr) is between 0% and 75%. In this way, the necessary stability can be ensured for practically all areas of application.

Description

technical field [0001] The invention relates to a device for pumping gas-containing suspensions, in particular fibrous material suspensions, having a fluidizing rotor with one or more blades and a pump impeller and a pressure connection, wherein The fluidization rotor is arranged in the suction connection of the pump and has a hub, wherein the fluidization rotor is hollow in the center on the inlet end and the blades interact freely without reinforcement or connection. Background technique [0002] A series of proposals for pumping gas-containing suspensions are known. US Pat. No. 4,971,519 (Timperi) thus shows a pump with an upstream fluidizing rotor, in which the suspension is fluidized in such a way that gas is substantially prevented from reaching the suction opening of the pump. Furthermore, embodiments are known from EP 0 474 476 or EP 0 474 478 in which the impeller of a vacuum pump is arranged downstream of the impeller of the pump in order to suck off the gas. In ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D7/04F04D29/22
CPCF04D29/2288F04D29/2277F04D7/045
Inventor 路德维希·米卡尔
Owner ANDRITZ AG
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