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Bourevestnik, Inc. |
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| E-Mail: | bourevestnik@bourevestnik.spb.ru | All services |
| Phone: | +7 (812) 528 7272 | |
| Fax: | +7 (812) 528 6633 | |
LS-20-07 X-Ray Sorter
The LS-20-07 Sorter is designated for the enrichment of wet basic diamond ore with grain size - 50 + 20, - 20 + 10 and - 10 + 5 mm.
The sorter's operation concept is based on the use of diamonds' property of luminescent under X-ray impact and on the difference of those properties with diamonds and associate luminescent minerals. The following different analysis modes are implemented:
- with single-side placement of the X-ray tube and luminescent receivers relatively to the material flow;
- the mode conditionally labeled as «luminescent and absorption", when the X-ray tube and luminescent receptors are located on both sides of the material flow; herein, the effect of difference in X-ray absorption by diamonds and associate luminescent minerals is used;
- with two-side placement of the X-ray tubes in relation to the material flow and single-side placement of luminescent receivers; herein, luminescent excitation in enhanced, although, differently for diamonds and associate luminescent minerals due to different degree of X-ray absorption.
The sorter includes a sorting machine (SM) and an automated control rack (ACR).
The sorter's operation concept is based on the use of diamonds' property of luminescent under X-ray impact and on the difference of those properties with diamonds and associate luminescent minerals. The following different analysis modes are implemented:
- with single-side placement of the X-ray tube and luminescent receivers relatively to the material flow;
- the mode conditionally labeled as «luminescent and absorption", when the X-ray tube and luminescent receptors are located on both sides of the material flow; herein, the effect of difference in X-ray absorption by diamonds and associate luminescent minerals is used;
- with two-side placement of the X-ray tubes in relation to the material flow and single-side placement of luminescent receivers; herein, luminescent excitation in enhanced, although, differently for diamonds and associate luminescent minerals due to different degree of X-ray absorption.
The sorter includes a sorting machine (SM) and an automated control rack (ACR).
Special Features and Specifications
| Material to be processed | Wet, clean from clay and slurries, classified (contents of main class 85% minimum) |
| Material grain size classes | - 50 + 20, - 20 + 10, - 10 + 5 mm |
| Material feed and transportation system | Continuous flow system, single-pass. Loading hopper (with a flange to connect to the mill's transportation system) - gravity feeder with automatically controlled slide valve - a shaping slope tray (300 mm wide) - adjustable outer divider plate (concentrate-tailing) - concentrate and tailing channels (with flanges to connect the relevant pipelines of the mill). Only single layer feed of material to the analysis area is allowed. |
| Throuput rates | 65 t/hr (- 50 + 20 mm) |
| X-ray: number of tubes | Two-side location of the tubes in relation to the material flow in the freefall chute, use depending on the analysis mode. |
| Detection: Luminescent signals' receivers | Single-sided material luminescent detection. |
| Ejection | Pneumatic, with compressed air, by means of solenoid-operated pneumatic valves |
| Recovery | 99% minimum |
| Outward flow of material per one edjection (with Throuput rate) | 0.7 kg maximum (- 50 + 20 mm), 0.35 kg (- 20 + 10 mm), 0.25 kg (- 10 + 5 mm) |
| Automation Extra option (supplied after a special order): Protection system against unauthorized access to SM, material | Checking of main systems prior to start of material feed and in the course of operation (material feed is stopped if fault is detected) Sensitivity Failure indication. Monitoring and control from the concentration mill's Automated Process Checking System |
| Electric power supply | 380V ± 10%; 50 Hz±2%; 6 kVA |
| Flow rate for transportation water (0.015 MPa) | 1.2 ( m³/hr) max. |
| Flow rate for potable quality water to cool the tubes | 6 l/min max. |
| Flow rate for potable quality water to wash the windows of photo receptors and tube collimators (0.3 MPa) | 0.5 l/min max. |
| Average compressed air flow rate (0.6 MPa) | 0.03 m³/min |
| Overall dimensions (LxWxH), mass: | 2300×845×2300 mm; 1100 kg |
| Operation conditions: |
From + 10°С to + 35°С. |
| Relative humidity (at ambient air temperature + 25°С) | SM - to 100% ACR - to 80% |
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