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.

An apparatus for processing aggregate material includes a chassis, a trough mounted on the chassis at an inclined angle, and at least one shaft rotatably mounted within the trough and extending from a lower to an upper end of the trough. The at least one shaft has blades mounted thereon, the blades being angled so that they carry material within the trough towards the upper end of the trough when the at least one shaft is in a normal direction of rotation. A discharge opening is formed in a base of the trough adjacent the upper end of the trough, a weir being provided in the trough upstream of the discharge opening over which processed material must pass to reach the discharge opening.

A coarse coal slime classifying system and method are disclosed. The system includes: a coal slime bucket, an arc-shaped sieve, a hydraulic classifying cyclone, a coal slime centrifuge, and a coal slime chute. The coal slime bucket is connected to a coal slime water incoming pipe. The hydraulic classifying cyclone is connected to the arc-shaped sieve and the coal slime bucket. The arc-shaped sieve is connected to the coal slime bucket and the coal slime centrifuge. The coal slime centrifuge is connected to the coal slime chute and the coal slime bucket. The coal slime bucket, arc-shaped sieve, hydraulic classifying cyclone, coal slime centrifuge, and coal slime chute are arranged to classify coarse coal slime, which improves the product quality and the yield. The system is simple in overall structure, convenient to maintain, and low in cost.

An apparatus for separating particles from a particulate suspension comprises a conduit comprising a plurality of elongate channels extending in adjacent alignment along a spiral path at different curvature radii from an axis of the spiral path. Longitudinal sidewalls of the elongate channels are fluidly joined together to allow for transfer of fluid between them. The apparatus also comprises an inlet for directing a particulate suspension into the conduit and outlets that direct fluid from the particulate suspension out from different discharge positions. At least first and second of the elongate channels are approximately circular in cross section and comprise a shared longitudinal sidewall, wherein the shared longitudinal sidewall comprises opposed uppermost and lowermost sidewall sections that are laterally offset from one another relative to the axis of the spiral path to allow for transfer of helically flowing fluid between the first and second of the elongate channels.

A flow-type field-flow fractionation apparatus 1 includes a first heater 14 and a second heater 16. The first heater 14 heats a carrier fluid between a first pump 12 and a separation cell 3. The second heater 16 heats a focus fluid between a second pump 15 and the separation cell 3. Thus, the carrier fluid heated by the first heater 14 is sent by the first pump 12 and flows into the separation cell 3, and the focus fluid heated by the second heater 16 is sent by the second pump 15 and flows into the separation cell 3. This can stabilize temperatures of the carrier fluid and the focus fluid flowing into the separation cell 3. Then, when an analysis is performed using the flow-type field-flow fractionation apparatus 1, the analysis can be performed with high reproducibility.

A flow-type field-flow fractionation apparatus 1 includes a first heater 14 and a second heater 16. The first heater 14 heats a carrier fluid between a first pump 12 and a separation cell 3. The second heater 16 heats a focus fluid between a second pump 15 and the separation cell 3. Thus, the carrier fluid heated by the first heater 14 is sent by the first pump 12 and flows into the separation cell 3, and the focus fluid heated by the second heater 16 is sent by the second pump 15 and flows into the separation cell 3. This can stabilize temperatures of the carrier fluid and the focus fluid flowing into the separation cell 3. Then, when an analysis is performed using the flow-type field-flow fractionation apparatus 1, the analysis can be performed with high reproducibility.

Provided is a field-flow-fractionation apparatus that is configured to supply a carrier fluid to a waste fluid chamber through a fluid supply flow path at a flow rate higher than a set flow rate of a flow rate adjusting part at a timing between an end of analysis of a sample and a start of analysis of a subsequent sample, thereby forming a flow of the carrier fluid from the waste fluid chamber to the separation channel. Accordingly, the sample adhering to a separation membrane is separated from the separation membrane and is discharged from the outlet port.

Provided is a field-flow-fractionation apparatus that is configured to supply a carrier fluid to a waste fluid chamber through a fluid supply flow path at a flow rate higher than a set flow rate of a flow rate adjusting part at a timing between an end of analysis of a sample and a start of analysis of a subsequent sample, thereby forming a flow of the carrier fluid from the waste fluid chamber to the separation channel. Accordingly, the sample adhering to a separation membrane is separated from the separation membrane and is discharged from the outlet port.

A method of separating infill material (105) of synthetic turf is disclosed. The infill material (105) comprises sand (155), rubber (165) and fibres (135). The method comprises combining the infill material (105) with water (106) to form an infill slurry (110), and separating one or more of the sand (155), rubber (165) and fibres (135) from the infill slurry (105). A hydrocyclone (104) may be used to separate the infill slurry (105) into a fibre slurry (107) and a sand/rubber slurry (111). An separation unit (200) for carrying out the method is also disclosed.