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We produce high quality products with the best materials! or over 36 years, Red Star has been a company dedicated to the engineering and manufacturing of screening media that are widely used in the mining and aggregates industry.
The application of mining screens in the energy field is extensive and critical Its role is not only reflected in the mining and processing of traditional energy (such as coal, oil, and natural gas), but also extends to the development of new energy (such as shale gas, geothermal energy, lithium mines, etc ) and the energy conversion process
A. Coal screening and washing:
Mine screens are used to classify raw coal according to particle size (such as lump coal, fine coal, and coal powder), and remove impurities such as gangue and sulfur through the washing process, thereby improving coal combustion efficiency and reducing pollution emissions.
B. Classification of thermal coal and chemical coal:
Screening can be used to meet the needs of different applications (e.g. coal for power generation needs to have controlled particle size, while coal for chemical industry needs to have high purity).
A. Screening of fracturing proppant (ceramsite sand):
In the fracturing operation of shale gas and shale oil extraction, the mine screen is used to screen high-strength ceramsite sand (proppant) to ensure its uniform particle size, prevent the closure of fracturing cracks, and ensure the efficiency of oil and gas flow.
B. Drilling fluid treatment:
Screen cuttings and impurities in drilling fluid to maintain the cleanliness and circulation performance of drilling fluid.
Desulfurizer and adsorbent screening:
In the natural gas desulfurization and dehydration process, mineral screens are used to grade activated carbon, molecular sieves and other adsorption materials to ensure that their particle size meets the process requirements and improve purification efficiency.
Application in the fields of new energy and clean energy
A. Spodumene/lepidolite screening:
In lithium ore processing, ore screens are used to grade crushed ore and extract lithium concentrate, providing high-purity raw materials for lithium battery positive electrode materials (such as lithium carbonate and lithium hydroxide).
B. Battery material particle size control:
Precision screening of battery precursors such as lithium cobalt oxide and ternary materials to ensure particle uniformity directly affects battery performance and safety.
A. Fracturing proppant classification:
Similar to conventional oil and gas, mining screens are used to screen proppants in shale gas and combustible ice mining to ensure the conductivity of reservoir fractures.
B. Hydrate separation:
In methane hydrate mining, screening technology is used to separate solid hydrates from impurities and improve energy extraction efficiency.
Geothermal fluid filtration:
Mine screens are used to filter cuttings and sediments in geothermal wells to prevent pipe blockage and equipment wear in geothermal power generation systems.
Biomass particle screening:
In the production of biomass fuels (such as wood chips and straw pellets), screening is used to remove oversized or oversized particles to ensure combustion efficiency and thermal stability.
A. Coal powder screening:
Control the particle size of coal powder entering the furnace, optimize combustion efficiency, and reduce unburned carbon loss and nitrogen oxide emissions.
B. Desulfurization gypsum treatment:
The gypsum by-product after screening of coal-fired flue gas desulfurization is used in building materials production to achieve resource recycling.
Catalyst carrier screening:
In the production of hydrogen production by water electrolysis or fuel cell catalysts, materials such as alumina and carbon carriers are screened to ensure catalyst activity and stability.
Selection depends on material hardness, moisture content, particle size, and impact force:
Wet or sticky materials → Polyurethane mesh (anti-clogging)
High abrasion materials → Manganese steel woven mesh or perforated plate
High-precision screening → Stainless steel woven mesh
Heavy impact materials → Steel-edge PU panels or rubber screen panels
Choosing the correct mesh improves output and reduces downtime.
Service life varies with material abrasiveness, vibration frequency, installation tension, and screen type:
Polyurethane mesh: 3–12 months
Manganese steel mesh: 1–6 months
Stainless steel mesh: 2–8 months
Rubber panels: 4–12 months
Proper tensioning and selecting the right aperture significantly extend lifespan.
Clogging occurs due to moisture, irregular particle shapes, or unsuitable aperture designs. Prevention methods:
Use self-cleaning screens (wave or harp type)
Switch to polyurethane anti-blinding mesh
Adjust vibration amplitude and screen angle
Pre-screen wet or muddy materials
Anti-clogging solutions greatly improve screening efficiency.
Key points during replacement include:
Ensuring consistent tension across the entire screen
Checking the screen frame for deformation
Matching hook types or fastening systems with your screen machine
Cleaning the deck to remove remaining material
Proper installation reduces breakage and improves screening accuracy.
Screening efficiency can be improved by:
Choosing the right aperture and mesh material
Adjusting vibration frequency and screen inclination
Maintaining uniform material feeding
Using multi-stage screening designs
Performing regular maintenance on screen decks and meshes
Efficiency improvements of 10–30% are commonly achievable.