X-ray luminescence sorter LS-20-09L

The principle of operation of the sorter is based on the use of the property of diamonds to luminesce under the exposure to X-rays and the difference of these properties in diamonds and associated luminescent minerals. This model is distinguished by its higher concentrate conditioning and its ability to recover low-luminescent and type 2 diamonds more efficiently than other similar models.

The sorter consists of a sorting machine and an automatic control rack.

Specifications

Main specification
Size fraction, mm	-50 +20	-20 +10	-10 +5
Throughput, t/h	100	60	30
Yield per 1 ejection, kg	1	0.65	0.4
Recovery rate, %	98,5
Type of material	wet

Material feeding and detection system
Material feed	gravity feeder
Flow	1
X-ray tube	2
Photomultiplier	8

Sorter’s supply
Power consumption, kVA (single phase, 220V/50Hz)		6
Technical water consumption, not more than, l/min		30
Cooling water consumption, l/min		6
Consumption of compressed air	per 1 ejection, l	1.15
	nominal productivity, l/min	30

Dimensions and mass
	Dimensions, mm	Mass, kg
Sorting machine	2300 х 845 х 2300	1100
Automatic control rack	881 х 603 х 1952	200

Process diagram

Options

Tracers for the Diamond Mining

Containerized Unit

Additional Lining Equipment

Rock Analysis Software

Tracers for the Diamond Mining

Bourevestnik offers a wide range of simulators (tracers) for testing mechanical recovery efficiency, adjusting transport delay time and cutoff duration, and adjusting the sensitivity of X-ray system.

Containerized Unit

Upon request Bourevestnik supplies the sorter and integrated auxiliary equipment as a part of the container unit.

Container plant is a mobile building in metal construction, container type, without running gear for operation outdoors at any time of the year and day and for permanent presence of personnel.

Unit composition:
• all-welded metal housing;
• power supply system;
• climate control system;
• fire alarm system and automatic fire extinguishing system;
• lighting system;
• water cooling system;
• air supply system;
• ore feed bin

Additional Lining Equipment

Bourevestnik offers the service of upgrading sorters with wear-resistant lining. This solution provides protection for the internal components of sorting machines (chutes, feed, concentrate and tailings compartments, transition sections, gravitational feeders — depending on the model of the sorter) against mechanical damage and significantly extends their service life.

The lining is made from ultra-high molecular weight polyethylene or alumina ceramic — the type of material depends on the application area.

Rock Analysis Software

Rock analysis software is designed for visualization of mineral luminescence signals and further analysis of the obtained parameters.

This software allows to analyze the character of distribution of minerals in the material by selective characteristics in the form of graphs and databases. The program is installed on a PC, reads information from the sorter human-machine interface unit via a specially provided RS232 channel and displays it on the screen.

After that it is possible to analyze the obtained information. Each line of the table corresponds to one luminescence signal of a mineral in one channel, it is assigned a certain serial number. The image of the luminescence signal is stored under the same number, which can be viewed below the data table.