1. PAINPOINT DRIVEN OPENING

Is your coke handling and classification process a source of chronic downtime and profit erosion? For plant managers overseeing coke production for blast furnaces or anode baking, inefficient screening directly impacts product quality and operational cost. Common challenges include:

Blinding & Carryover: Fine, moist coke particles adhere to screen decks, blinding apertures and forcing oversized material into the product stream, compromising metallurgical grade specifications.
Excessive Deck Wear & Maintenance: The abrasive nature of metallurgical coke accelerates wear on screen panels and components, leading to frequent, costly replacements and unplanned shutdowns.
Inconsistent Feed Rate Handling: Fluctuations in feed from upstream crushers or conveyors can overwhelm standard screens, causing stratification failure and reducing screening efficiency.
Structural Fatigue & Vibration Isolation: Highcycle operations transfer damaging vibrations to support structures, increasing longterm maintenance costs for the entire screening station.

Are you facing rising maintenance costs, inconsistent product quality, and throughput bottlenecks? The right premium coke vibration screen is not just a piece of equipment; it is a critical process guarantee.

2. PRODUCT OVERVIEW

A premium coke vibration screen is a highcapacity, heavyduty screening machine designed for the precise size separation of metallurgical (met) coke and petroleum (pet) coke. Engineered for 24/7 operation in harsh, abrasive environments, it ensures consistent product sizing critical for blast furnace efficiency and carbon anode production.

Operational Workflow:
1. Controlled Feed: Coke feedstock is delivered via conveyor onto the screen’s feed box, which evenly distributes material across the full width of the first deck.
2. Stratification & Separation: Highintensity, linear or elliptical vibration forces material to stratify. Fines pass through upper deck apertures; middlings are conveyed to lower decks for further separation; oversize is discharged at the end of the deck.
3. Discharge: Correctly sized fractions are discharged through dedicated chutes into separate product streams (e.g., blast furnace nut coke, breeze) for downstream processing or shipment.

Application Scope: Primary and secondary sizing of metallurgical coke (blast furnace coke), petroleum coke, recarburizers, and other abrasive carbon materials. Suitable for both greenfield installations and retrofit upgrades.

Limitations: Not designed for sticky, highly cohesive materials without specialized deck technology. Maximum lump size is constrained by feed chute and deck aperture design.

3. CORE FEATURES

Our premium coke vibration screens are built with specific engineering solutions to address the core challenges of coke screening.

AntiBlinding Deck Systems | Technical Basis: Multilayer polyurethane or rubber panels with tapered apertures and high elasticity | Operational Benefit: Prevents particle adhesion in wet or fine conditions, maintains consistent open area for accurate sizing | ROI Impact: Sustained screening efficiency up to 95%, eliminating downtime for manual cleaning
HeavyDuty Vibrator Assembly | Technical Basis: Internally mounted, double eccentric shaft vibrators with precision bearings | Operational Benefit: Generates a uniform linear stroke across the entire deck length for consistent material travel speed | ROI Impact: Uniform wear on decks extends service life; reliable operation reduces vibratorrelated maintenance by approximately 30%
Modular Deck Construction | Technical Basis: Independently tensioned, interchangeable panel sections mounted on a rigid substructure | Operational Benefit: Allows for rapid replacement of worn panels in specific highwear zones without full deck changeout | ROI Impact: Cuts panel replacement downtime by up to 60% and reduces spare parts inventory cost
Advanced Isolation System | Technical Basis: Multiplerate steel coil springs or rubber buffer mounts tuned to machine dynamics | Operational Benefit: Isolates over 95% of dynamic forces from the support structure | ROI Impact: Eliminates structural damage fatigue, significantly lowering longterm civil maintenance costs
Robust Sideplate & Crossmember Design | Technical Basis: Finite Element Analysis (FEA)optimized steel fabrications with continuous welds | Operational Benefit: Withstands high cyclic loading without cracking or fatigue failure over decades of service | ROI Impact: Provides structural integrity guarantee, avoiding catastrophic frame failure and associated production losses
Centralized Greasing Lube System| Technical Basis: Automated manifold delivering grease to all vibrator bearing points| Operational Benefit: Ensures optimal bearing lubrication in highdust environments without manual intervention| ROI Impact: Extends critical bearing life by an average of 40%, preventing unplanned stoppages

4. COMPETITIVE ADVANTAGES

| Performance Metric | Industry Standard | Premium Coke Vibration Screen Solution | Advantage (% Improvement) |
| : | : | : | : |
| Deck Panel Service Life | 36 months with standard steel wire mesh | 914 months with specialized polyurethane/ rubber systems | +100% to +133% |
| Screening Efficiency (Consistency)| Declines rapidly due to blinding; averages ~85% over campaign| Maintains >92% efficiency throughout panel life due to antiblinding tech| +8% sustained performance |
| Annual Maintenance Downtime| 120180 hours for panel changes, bearing service, structural repairs| 4070 hours with modular decks & centralized lube systems| 58% downtime reduction |
| Vibration Transmission| Significant force transfer requiring reinforced structures|95% force isolation |
| Energy Consumption per Ton| Baseline relative to motor size & inefficient load distribution| Optimized massandstroke balance reduces specific energy demand|15% per ton screened |

5. TECHNICAL SPECIFICATIONS

Capacity & Rating: Designed for throughputs from 200 TPH to 2,500+ TPH depending on model size and aperture configuration.
Power Requirements: Driven by dual vibrator motors ranging from 2 x 7.5 kW to 2 x 55 kW (400/690V, 50/60Hz). Dust encapsulation options available.
Material Specifications:
Frame & Sideplates: Hightensile steel plate (S355JR min.)
Deck Support Beams: Reinformed hollow sections
Screen Decks: Optional Hardox wear liners at feed points; Tensioned polyurethane modular panels; Rubber clad panels; Piano wire panels.
Surfacing: Industrialgrade paint system or optional galvanization.
Physical Dimensions (Typical Large Unit): Length range from ~4m up to ~10m overall; Width range from ~1.5m up to ~3.5m overall; Weight between ~5t – ~25t.
Environmental Operating Range: Ambient temperature from 20°C to +45°C. Designed for outdoor installation with weather protection on bearings and drives.

6. APPLICATION SCENARIOS

Integrated Steel Plant – Blast Furnace Coke Sizing

Challenge A major steel producer faced frequent blinding during humid months on their primary coke screens. This caused oversized material (>80mm) contaminating the nut coke (2580mm) fraction supplied to their blast furnaces,
reducing permeability and increasing fuel rate.
Solution Installation of two widebody premium coke vibration screens featuring multilayer antiblinding polyurethane decks on all three sizing stages.
Results Screening efficiency stabilized at 94%. Oversize contamination in nut coke fraction fell below specification (<2%). Annual maintenance hours decreased by approximately65%, primarily due to elimination of daily manual deck rapping.

Petroleum Coke Calcining Plant – Anode Grade Coke

Challenge A calciner needed precise separation of calcined petcoke into multiple fractions (1mm,+4mm etc.)for anode paste formulation.Severe abrasion wore out standard stainless steel mesh decks every8 weeks,causing variable particle size distribution that affected anode quality.
Solution Retrofit of existing screen structures with premium modular tensioned decks using proprietary abrasionresistant rubber compound panels configuredfor four fractions.
Results Deck life extendedto7 months per set.Particle size distribution consistency improved significantly(standard deviation reducedby40%), enhancing downstream anode homogeneity.Return on investment achievedin under11 months through reduced part costsand avoided quality penalties.

7.COMMERCIAL CONSIDERATIONS

Premiumcoke vibration screens representa capital investment focusedon lifecycle cost reduction.Pricingis tieredbasedon:

1.Machine Size&Configuration(Tier):
Tier1(Standard Duty):Up t o~800TPH,singleor double deck.Fixed specifications catalogue pricing available .
Tier2(Heavy Duty):High capacity(~800–2000TPH),multideck configurations.Customizable options .
Tier3(PlantWide Solutions):Multiple units engineeredforsynchronized plant flow.Custom project quotation .

2.Optional Features&Upgrades
Deck Material Selection(Polyurethane,Rubber,HARDOX,Piano Wire)
EnclosedDustTight Bodieswith flanged connections
SpecializedLiner Kitsforfeedboxesanddischarge lips
AdvancedCondition Monitoring Sensors(vibration,temperature)

3.Service Packages
Basic Warranty:Covers partsand laborfor12months .
ExtendedSupport Plans:Scheduledinspections,predictive maintenance analysis ,priority spare parts allocation .
OnsiteOperator Training&Commissioning Supervision

4.Financing Options
Available through partner financial institutions including equipment leasing programs ,rentaltoown structures,and project financing tailoredfor largescale plant upgrades .

8.FAQ

Q:What if my existing feed system has an uneven flow profile?
A:The robustfeed box designis engineeredto handle surge loadsand can be customizedwith internal bafflesor steppedliners todistribute material evenly acrossthe fullscreen width,makingit compatiblewithmostexisting layouts .

Q.How do I selectthe correctdeck aperturematerial formy specificcoketype?
A.Selectionis basedon comprehensiveanalysisof your feedstock’sparticle sizedistribution ,moisture content ,andabrasiveness .Our engineerswill reviewyour samplesandoperating datato recommendthe optimalpaneltype balancinglifecyclecostandefficiency .

Q.Are these screens compatiblewith automatedplant control systems?
A Yes .Standardunits come equippedwithmotor startersandlocal control .Theycan be fully integratedintoplantwide PLC/DCS systems .Vibrationmonitoring outputscan be providedforpredictive maintenance protocols .

Q.What isthe typicallead timefora customconfiguredscreen ?
A Lead timesvarybycomplexity.For Tier2heavyduty unitswith standardoptions ,expect1620weeksfrom orderto shipment .Projectspecificrequirements may affectthis timeline .

Q.Do you provideinstallation services ?
A Yes .We offer comprehensiveinstallation supervisionconductedbyqualifiedfield engineers.This ensuresthe equipmentis commissionedcorrectlyforoptimalperformancefrom startup .

Q.Can you assistin retrofittingan existing screento improveits performance ?
A Absolutely.Retrofits—such as upgradingdecksystems,vibrators ,orisolationmountson existingscreenboxes—are acosteffective solution.We conductdetailed site assessments todelivera retrofit package that maximizesperformance gains withinyour structural constraints .

Q.What warrantyis offeredonthe criticalvibrator assembly ?
A The vibrator assembly ,including shaftsandbearings ,carriesa standard24month warrantyagainstmanufacturing defects whenusedasper operational guidelinesandsupportedbyour recommendedlubrication schedule .