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Sedimentation type centrifuge

A centrifuge, a form of technology used in centrifuges, centrifuges with rotating drums, etc.

Inactive Publication Date: 2004-05-12
ALFA LAVAL CORP AB
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, it is not possible to optimally design a decanter centrifuge to handle mixtures with a relatively small solids content

Method used

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  • Sedimentation type centrifuge
  • Sedimentation type centrifuge
  • Sedimentation type centrifuge

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0045] 1-3 show a first embodiment of the invention. The centrifugal separator comprises a rotor 1, a screw conveyor 2, and a drive device, the rotor rotates at a certain speed around a vertical rotation axis R, the screw conveyor is arranged in the rotor 1 and rotates around the same rotation axis R Rotate, however at a speed different from that of the rotor 1, the drive means rotates the rotor 1 and the screw conveyor 2 each at its own speed. The drive means comprises one or more motors (not shown) and a gear unit 3 which connects the motors or connects the motors to the rotor 1 and the screw conveyor 2 .

[0046] The rotor 1 has a partially cylindrical upper rotor part 4 and a conical lower rotor part 6 , the upper rotor part 4 partially comprising a hollow rotor shaft 5 or being connected to the hollow rotor shaft 5 . The rotor parts 4 and 6 are detachably connected to one another by means of bolts 7 . Of course, other connection methods can also be used.

[0047] As al...

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PUM

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Abstract

In a decanter centrifuge having a rotor (1) and a screw conveyor (2) the rotor is suspended only at its one end, the rotational axis (R) of the rotor extending vertically. The inlet (22) of the rotor (1) for a sludge containing liquid to be separated as well as the rotor outlet (12; 67) for liquid having been freed from sludge are situated at the upper end of the rotor, whereas a sludge outlet (13) for separated sludge is situated at the lower end of the rotor. The rotor (1) as well as the screw conveyor (2) are adapted to be driven through shafts (5, 8) situated at the upper end of the rotor. By the invention it becomes possible by simple means to adapt the decanter centrifuge for different separation duties, since the location of the sludge outlet (13) can be chosen freely without other parts of the decanter centrifuge preventing this.

Description

[0001] related application [0002] This application is a divisional application of the patent application with application number 99807460.8 entitled "A Decanter Centrifuge". technical field [0003] The present invention relates to a centrifuge for separating solids from a liquid mixture in which such particles are suspended in a liquid which has a lower density than the particles. The invention relates in particular to a so-called decanter centrifuge comprising a rotor rotatable about a central axis at a first speed, a rotor arranged in the rotor and rotatable about said central axis at a speed different from the An auger rotating at a second speed of said first speed and a drive adapted to rotate said rotor at said first speed and to rotate said auger at said second speed. Background technique [0004] Such decanter centrifuges are used in many different applications, especially where the solids content of the mixture to be processed is relatively high. Decanter centri...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B04B1/20B04B9/08B04B9/12B04B11/02B04B11/08
CPCB04B2001/2033B04B2001/2083B04B11/08B04B2001/2025B04B2001/2066B04B1/2016B04B9/12B04B1/20B04B2001/2041
Inventor K·斯特罗肯R·里德尔斯特拉勒
Owner ALFA LAVAL CORP AB