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TECHNICAL SPECIFICATIONS FOR FLOW SORT TM
X-RAY DIAMOND RECOVERY MACHINE
FLOW X-ray diamond recovery machines are based on X-ray-induced luminescence of diamonds. Although this basic principle goes back to the 1930s and became popular in South Africa in the early 70s FLOW has pioneered and introduced much advancement in this technology. Since the launch of FLOW’S “XR” sorter range in 1993, FLOW has sold over 640 units to diamond miners and diggers all over the world.
FLOW SORT ‘XR’ diamond recovery machines are designed to sort DRY OR WET diamondiferous material, under virtually any conditions. Model XR 400 DW and TSXR400 DW is the latest addition to the FLOW SORT sorting machine stable.
All FLOW SORT models are equally suitable for ‘fixed’ installations as for ‘mobile’ plants, be it on terra firma or on board a ‘marine’ diamond-mining vessel.
It is our sorter’s robustness, reliability, high recovery efficiency, easy operation and low maintenance, as well as our uncompromising after-sales service that earned our product’s acceptance in the marketplace.
An optical scanning system specifically designed for the recovery of low luminescent diamonds is a standard feature on the [TS]XR 400 DW
The [TS]XR 400 DW, in its basic configuration this machine is set up as a primary sorting machine with a 400 mm wide feed channel which is divided into 16 optical diamond detection channels.
XR400 models: 380 Volt (+- 10%), 50Hz, 3Phase, Power consumption approx. 3kVA.
TSXR 400 models: 380 Volt (+- 10%), 50Hz, 3 Phase, Power consumption approx. 5kVA.
Other Electrical Supply Specifications can be accommodated on request.
Flow Sort lightning and surge protection units, as well as phase failure detection, and voltage stabilizer units, available as optional extra, are specifically designed for FLOW SORT™ products.
QUALITY: Water supply must be filtered through a 100 Micron filter.
PRESSURE: Recommended water supply pressure is 600kpa. (Max: 800kpa, Min: 400kpa)
TEMPERATURE: MIN: +2.5°C MAX: +30°C
CONSUMPTION: Feed water consumption (flow rate) largely depends on feed rate, material size and type of material to be sorted (ranging from 60 l/min to 160 l/min).
Volume XR400: Typically 80 litres/minute
Volume TSXR400: Typically 155 litres/minute
SORTER: MIN: +2.5°C MAX: +45°C REL. HUMIDITY: 95% (non-condensing)
CONTROL PANEL: MIN: -5°C MAX: +45°C REL. HUMIDITY: 95% (non-condensing)
Minimum SIZE Recommended minimum is 10 mm. (Course)
Maximum SIZE Recommended maximum is 60 mm. (Absolute max particle size is 75 mm)
For maximum recovery efficiency, we recommend a size ratio of 2:1 for material below 4mm and up to 3:1 for material above 3mm.
Typical fractions: + 1mm – 2mm, + 2mm – 4mm, + 4mm – 10mm, + 10mm – 25mm, + 25mm – 75mm
NOTE FLOW SORT OFFERS A PROFESSIONAL CONSULTING SERVICE TO ADVISE ON OPTIMAL SIZE SPLITS FOR SPECIFIC APPLICATIONS.
FEED MATERIAL PRESENTED TO THE SORTERS MAY BE WET OR DRY. IT IS HOWEVER IMPORTANT THAT THE MATERIAL IS ‘CLEAN’ i.e. FREE OF CLAY, SLIME, VEGETATION OR OTHER FOREIGN OBJECTS.
IT IS ALSO OF IMPORTANTANCE THAT THE MATERIAL TO BE SORTED IS APPROPRIATELY SIZED AND FREE OF UNDERSIZED AS WELL AS OVERSIZED MATERIAL.
Sorter feed rate ‘FR’ (kg/hr) is computed by using the following approximations:
FR (kg/h) = SC x d (mm) x SF x s.g.
d = AVERAGE PARTICLE DIAMETER (IN A GIVEN SIZE FRACTION) in mm
SC = “SORTER CONSTANT” This value varies with sorter configuration and application (for model XR400DW from
200 to 400). For primary recovery application, this value is typically 300
SF = ‘SHAPE FACTOR’ = the particle volume expressed as a portion of the volume of a sphere with diameter ‘d’. (A particle with 60% of the volume of a sphere of diameter ‘d’ results in a ‘SHAPE FACTOR’ = 0.6)
s.g. = AVERAGE SPECIFIC GRAVITY OF FEED MATERIAL (g/cm3)
The sorter produces concentrate equivalent to approx.: 24 x FR x10-6 per ejection (0.0024% of FR)
Diamond recovery efficiency is influenced by many factors such as feed rate, feed material particle size ratio, feed material temperature, feed material contamination with fines and dirt, and so on.
Diamond detectability based on X-ray luminescence varies with a diamond’s colour, impurities, level of transparency, nitrogen content etc.
FLOW SORT SUPPLIES SPECIAL HIGH-SECURITY CONCENTRATE BINS THAT FIT DIRECTLY ONTO THE SORTERS CONCENTRATE OUTLETS.
FOR OPTIONAL MOBILE PLANTS, PLEASE REFER TO TRAILER AND CONTAINER SPECIFICATIONS!
FLOW SORT (PTY) LTD. RESERVES THE RIGHT TO REVISE THIS SPECIFICATION AND TO MAKE CHANGES FROM TIME TO TIME IN THE CONTENTS THEREOF WITHOUT OBLIGATION TO NOTIFY ANY PERSON OF SUCH REVISION OR CHANGES.
Points to consider when purchasing an X-RAY DIAMOND RECOVERY Machine:
Flow Group, comprises of two formidable companies and was established in 1971. Flow Electronics, the Sole Manufacturer and Distributor and Flow Sort the Originator and Designer of the Flow X-Ray Diamond Recovery Machines.
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