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Hydrocyclone reject chamber

A technology of hydrocyclone and waste chamber, which is applied to cyclone devices, devices whose axial direction of cyclone remains unchanged, and devices whose axial direction of cyclone can be reversed, etc., which can solve the problems of increasing the number of waste fibers and so on.

Active Publication Date: 2021-08-17
VALMET TECH OY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this also increases the amount of waste fiber that settles towards the walls of the hydrocyclone

Method used

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Embodiment Construction

[0027] The present invention discloses a waste chamber 60 having an interior cavity 64 (see Figure 4 ), into the waste inlet 68 of cavity 64 (see Figure 5 ), and a waste outlet 72 drawn from the cavity 64. In the disclosed embodiment, the longitudinal axis 76 of the waste outlet 72 is at a 90 degree angle to the longitudinal axis 80 of the waste inlet 68, although in other embodiments this angle may vary. The waste chamber 60 is used in place of the second outlet member 22 and fluid supply 26 in FIG. 1 .

[0028] The disclosed waste chamber has two main features. One feature is the centrally disposed backbone 84, and the other feature is two ramps or "bumps" 88 and 92 on either side of the backbone 84, as shown in Figures 2 to 5 best shown. More specifically, at the elbow of the waste chamber 60 where the waste inlet meets the waste outlet, a stem 84 extending into the interior cavity 64 along the longitudinal axis 80 of the waste inlet 68 is disposed. Additionally, a ...

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Abstract

A reject chamber for use with a hydrocyclone for separating a fiber suspension into a heavy fraction substantially containing heavy contaminants and a light fiber fraction substantially containing fibers, the reject chamber having an internal cavity, a reject inlet into the internal cavity, and a reject outlet out of the internal cavity, the longitudinal axis of the reject outlet being angled relative to the longitudinal axis of the reject inlet. The reject chamber has a stem that extends into the internal cavity at the elbow of the reject chamber, and at least two bumps, each of which extend into the chamber on opposite sides of the stem, the reject chamber taken along a cross section through the stem and between the bumps having symmetrical sides.

Description

[0001] References to related applications [0002] This application claims the benefit of US Provisional Application 62 / 790544, filed January 10, 2019. Background technique [0003] The present disclosure relates to a hydrocyclone for separating a fiber suspension into a waste fraction substantially comprising heavy pollutants and a receiving fraction substantially comprising fibres, comprising a hydrocyclone having a defined elongated separation chamber A circumferentially walled housing, the separation chamber has two opposite ends and a central axis extending between the opposite ends. The hydrocyclone further comprises an inlet member for supplying the fiber suspension substantially tangentially into the separation chamber at one end thereof so that the fiber suspension flows in the separation chamber in the form of a vortex, for A first outlet member for discharging the receiving portion from the separation chamber at one end, and a second outlet member for discharging t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B04C5/00B04C5/14B04C7/00B04C11/00B04C3/00B04C3/06D21D5/24
CPCD21D5/24B04C5/14B04C5/181B04C5/04
Inventor B.埃里克森R.贝克
Owner VALMET TECH OY