Comex delivers innovative sorting solutions and sophisticated processing equipment for demanding industrial applications.
The sorting equipment can be applied for separation of various materials, based on differences in physical properties. After significant efforts in R&D projects, Comex provides today the latest state-of-the-art equipment together with the know-how for fullscale industrial solutions.
Advanced sorting technologies
CXR series represents the complex and robust sensor based sorting systems, used for the analysis, identification and sorting of particles based on different physical properties. The system is operating in dry mode, thus it does not require any use of water. The main function is based on recognizing an individual response to X-ray attenuation in combination with:
■ Colour analysis
■ Infrared reflectance
■ Transparency
■ Size
■ Shape
■ Surface Texture
■ Thermal Transfer
■ Conductivity
Typical applications include:
■ Pre-concentration of metal ores (iron, zinc and lead, tungsten, copper, gold, nickel, chrome, etc.) and other minerals
■ Implementation of sorting in traditional processing plants
■ Re-processing of ore waste material
■ Coal enr ichment
■ Recycling of different materials
■ Quality control and material inspection in production systems
Key benefits :
■ Possibility to combine different sensors in the same sorting unit
■ Advanced software providing complex analysis from different sensors
■ High separating efficiency upto 99%
■ High precision separation by pneumatic nozzles
■ Complete 2D and 3D analysis of particle geometry
■ Possibility for on-site material separation by mobile systems
Generally, the new Comex separation system can provide the following benefits:
■ significant reduction of the investment cost
■ huge reduction of the plant operating cost
■ increased product quality
■ reduced waste generation in form of fine particles
■ reduced water consumption or its elimination
■ reduced environmental impact of mining activities
■ re-processing possibilities for mining waste
When used for pre-concentrationof ROM material, it will additionally result in:
■ removed impurities in the early processing stage
■ impurities, being in form of large particles can be used for other purposes like building industry
■ reduced transportation cost between a mine and a processing plant
■ improved profitability for mining operations
Coal enrichment is necessary not only for economical and processing reasons but also for ecological reasons.
Comex sorting systems allow for:
• Decreasing ash content and increasing calorific value in the product.
• Decreasing sulfur content in the product.
• Identifying and separating oil shales.
• Identifying and accurate separation of coal and stone agglomerates by applying artificial intelligence models in an advanced X-ray image analysis.
• Avoiding material washing and eliminating water from the enrichment process, which facilitates potential applications in various conditions.
As a result, the clean coal product from the Sorter, allows for:
• Improving the energy efficiency of the combustion process.
• Decreasing the amount of waste generated in the combustion process.
• Wider application options in other fields through an accurate control and adjusting coal quality parameters to further process requirements.
• Overall reduction of the total CO, emission from obtaining the raw material to its application and general reduction of the environmental impact.
• Reducing the procedures connected with transportation and processing of raw materials and processing wastes.
State-of-the-ad enrichment methods (Comex)
Process features:
• high quality coal,
• the possibility to adjust to various efficiencies according to the process requirements.
• quick adjustment to new quality requirements.
• wide coal applicability,
• high sales price,
• low investment expenditures,
• significantly lower energy consumption of the enrichment process,
• decreased environmental pollution in the combustion process,
• overall decrease of CO2 emission.
Example of the iron ore pre-concentration
Initial production was based on processing of the complete ROM material output. This generated about 277 t/h of waste from the processing plant in form of fine
particles.
After sorting of the ROM material, 174 t/h of the waste material was removed in form of the coarse particles. Only 326 t/h was processed at the plant. This resulted in 35% reduction of the transportation cost to the plant and the same reduction of the processing cost. The fine waste material was reduced by 62%.
• 62% reduction of fine ground waste
• 35% reduction of the plant processing cost
• 35% reduction of the transportation cost to the plant
Example of the iron ore final concentration
Initial production was based on processing of the complete ROM material output, representing high quality iron ore. This required processing plant capacity of 600t/h.
After sorting of the ROM material,
304 t/h of the high quality ore particles were separated as the final product. Consequently, only 296 t/h was processed at the plant. This resulted in 51% reduction of
the transportation cost to the plant and the same reduction of the processing cost.
• 51% reduction of the transportation cost to the plant
• 51% reduction of the plant processing cost
Example of the zinc ore pre-concentration
Initial production was based on processing of the complete ROM
material output. This generated about 314t/h of the waste material from the processing plant in form of fine particles.
After sorting of the ROM material 162t/h of the waste material was removed in form of the coarse particles. Only 188 t/h was processed at the plant. This resulted in 46% reduction of the transportation cost to the plant and the same reduction of the processing cost. The fine waste material was reduced by 51%.
• 51% reduction of the fine
ground waste material
• 46% reduction of the plant processing cost
• 46% reduction of the transportation cost
Example of the gold ore pre-concentration
Initial production was based on processing of the complete ROM material output. This generated
about 200 t/h of waste from the processing plant, mainly as fine particles.
After sorting of the ROM material 168 t/h of the waste material was removed in form of the coarse particles. Only 32 t/h was processed at the plant. This resulted in 84% reduction of the transportation cost to the plant and the same reduction of the fine waste material and the processing cost at the plant.
• 84% reduction of fine ground rejects and chemical wastes
• 84% reduction
of plant
processing
and
transportation cost
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