Aggregate washing systems are described including mechanisms for slurrying, washing and/or dewatering aggregate material.

Aggregate washing systems are described including mechanisms for slurrying, washing and/or dewatering aggregate material.

A method of separating particles (P) having different sedimentation velocities in a fluid sample (30) through centrifugal sedimentation comprises enclosing the sample (30) and rotating the sample about a primary axis (12) outside the sample at a first rotational speed (Ω), and about a secondary axis (22) located in the center of the sample at a second rotational speed (ξ), for subjecting the sample to a varying centrifugal field until each particle (P) has settled at a position which depends on the sedimentation velocity of the particle.

A method of separating particles (P) having different sedimentation velocities in a fluid sample (30) through centrifugal sedimentation comprises enclosing the sample (30) and rotating the sample about a primary axis (12) outside the sample at a first rotational speed (Ω), and about a secondary axis (22) located in the center of the sample at a second rotational speed (ξ), for subjecting the sample to a varying centrifugal field until each particle (P) has settled at a position which depends on the sedimentation velocity of the particle.

Provided are methods and apparatuses for controlling a position of a target point on a processing result relative to a focus point of a focusing sensor system for determining properties of the processing result. The method includes the steps of determining an initial focus point of the focusing sensor system, controlling rotation of the cartridge and disc, checking whether the initial focus point of the focusing sensor system corresponds to the target point on the processing result, comparing (x, y) target positions in captured images with the initial focus point of the focusing sensor system, adjusting rotation of the cartridge and disc such that the focus point of the focusing sensor system corresponds to the target point on the processing result, and detecting and examining signals received from the focusing sensor system for determining properties of the processing result.

Provided are methods and apparatuses for controlling a position of a target point on a processing result relative to a focus point of a focusing sensor system for determining properties of the processing result. The method includes the steps of determining an initial focus point of the focusing sensor system, controlling rotation of the cartridge and disc, checking whether the initial focus point of the focusing sensor system corresponds to the target point on the processing result, comparing (x, y) target positions in captured images with the initial focus point of the focusing sensor system, adjusting rotation of the cartridge and disc such that the focus point of the focusing sensor system corresponds to the target point on the processing result, and detecting and examining signals received from the focusing sensor system for determining properties of the processing result.

The present invention relates to improved methods for processing fluids and to a fluid processing device (1) for use in a centrifuge comprising: (a) a first holder (14) form-fit to the shape of a first tube (18) for holding said first tube (18) whereby said first tube (18) has a first cross section (A1); and (b) a second holder (22) form-fit to the shape of a second tube (26) for holding said second tube (26) whereby said second tube (26) has a second cross section (A2) that is different from said first cross section (A1). With the fluid processing devices and the methods according to the invention, it is possible to simplify the centrifugal processing steps for a given fluid processing sequence and to automate them.

The present invention relates to improved methods for processing fluids and to a fluid processing device (1) for use in a centrifuge comprising: (a) a first holder (14) form-fit to the shape of a first tube (18) for holding said first tube (18) whereby said first tube (18) has a first cross section (A1); and (b) a second holder (22) form-fit to the shape of a second tube (26) for holding said second tube (26) whereby said second tube (26) has a second cross section (A2) that is different from said first cross section (A1). With the fluid processing devices and the methods according to the invention, it is possible to simplify the centrifugal processing steps for a given fluid processing sequence and to automate them.

Method and Apparatus for predicting the volume of a component separated from a composite fluid by predicting the volume of the composite fluid from sensed pressure and predicting the volume of other separated components from sensed movement of the other components to collection bags.

Method and Apparatus for predicting the volume of a component separated from a composite fluid by predicting the volume of the composite fluid from sensed pressure and predicting the volume of other separated components from sensed movement of the other components to collection bags.