Solid bowl helical conveyor centrifuge with a pressurized housing

Abstract

A solid bowl helical conveyor centrifuge. The centrifuge includes a rotating drum, having a centrifuge space with a screw that can also rotate. An inlet tube for supplying a material for centrifugation into the centrifuge space, and at least one liquid discharge and at least one solids discharge, wherein the liquid discharge and / or the solid discharge is / are designed as at least one or more openings in a rotating part of the solid bowl helical conveyor centrifuge, in particular through openings in the drum wall. At least one of the openings is covered by a housing which encloses the drum of the solid bowl helical conveyor centrifuge in only some sections, between the at least one housing and the drum and / or other rotating elements of the solid bowl helical conveyor centrifuge (drum heads, hubs) at least one or more gaskets are provided.

Description

technical field [0001] The invention relates to a non-porous drum screw-fed centrifuge comprising a pressure-tight drum comprising a centrifuge space in which is also rotatable a helical rotor; The centrifuge also includes an inlet pipe for feeding the material to be centrifuged into the centrifuge space. Background technique [0002] In order to ensure the pressure-tight and air-tight operation of the non-porous drum screw conveyor centrifuge, it is known that the entire drum (that is, the entire rotating area of ​​the drum) can be surrounded by a shell that is sealed from the surrounding environment. [0003] Inside this housing, the boundary states of the process to be realized can be maintained and the mass flow can be moved under the required pressure conditions. [0004] The friction that occurs between the gas molecules and the drum surface, especially at high speeds and / or large diameter drums, requires considerable drive power, thus increasing the power consumption...

AI Technical Summary

Problems solved by technology

[0004] The friction that occurs between the gas molecules and the drum surface, especially at high speeds and / or large diameter drums, requires considerable drive power, thus increasing the power consumption of the centrifuge to such an extent that it becomes a shortcoming of

Another problem is that these energy losses cause heating of the gas and rotating parts

Wall friction increases the pressure proportionally, which increases the drive power required

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