1. PAINPOINT DRIVEN OPENING

Is your coke handling operation plagued by persistent inefficiency and unplanned maintenance? For plant managers overseeing coke screening, common challenges directly impact throughput and profitability. Excessive fines contamination in product streams can lead to customer rejections and revenue loss. Frequent screen cloth blinding from sticky, moist coke results in extended downtime for manual cleaning, halting the entire processing line. Premature wear of screen components due to the abrasive nature of coke forces a higherthanbudgeted spend on replacement parts. Vibration isolation failures transmit damaging harmonics to support structures, creating longterm asset integrity concerns. Are you facing rising operational costs, inconsistent product grading, and unreliable equipment availability? The right Coke Vibration Screen is not just a component; it’s a critical determinant of your plant’s continuous performance and bottom line.

2. PRODUCT OVERVIEW

A Coke Vibration Screen is a heavyduty industrial screening machine designed for the scalping, sizing, and dedusting of metallurgical coke and petroleum coke (petcoke). Its purpose is to separate material efficiently by particle size after crushing or prior to shipment and blast furnace charging.

Operational Workflow:
1. Feed Introduction: Bulk coke is conveyed onto the feed box of the inclined screen deck.
2. Vibratory Separation: HighGforce linear or elliptical vibration stratifies material, forcing undersize particles through the specified screen cloth apertures.
3. Particle Stratification: Fines pass through first, followed by correctly sized product; nearsize material requiring more time to pass continues down the deck.
4. Discharge: Correctly sized oversize and undersize fractions are discharged from separate outlets onto designated conveyors or bins.

Application Scope & Limitations:
This equipment is engineered for highcapacity dry screening of bulk solid coke. Optimal performance assumes controlled feed rates and material with surface moisture typically below 5% to minimize adhesion. It is not suitable as a substitute for a dewatering screen for slurry applications or for materials with significantly higher moisture content without specialized modifications.

3. CORE FEATURES

HeavyDuty Deck Support System | Technical Basis: Reinforced crossmembers with rubber buffer sleeves | Operational Benefit: Absorbs impact loads from large coke lumps, drastically reducing metal fatigue and structural cracking | ROI Impact: Extends deck frame service life by up to 60%, reducing structural replacement costs.

AntiBlinding Screen Cloth Technology | Technical Basis: Polyurethane or rubberclad wire panels with flexible, selfcleaning apertures | Operational Benefit: Panel flex under vibration dislodges lodged particles, maintaining consistent open area and screening efficiency | ROI Impact: Sustains design capacity, reduces cleaning downtime by up to 80%, and improves product consistency.

DualVibration Motor Drive | Technical Basis: Two synchronized, externally mounted motors generating linear vibration | Operational Benefit: Simplified maintenance with no complex internal gears; easy adjustment of amplitude; balanced force distribution | ROI Impact: Lower maintenance time and cost versus bruteforce singleshaft drives; improved uptime.

Modular Deck Design | Technical Basis: Independently tensioned screen panel sections on a unitary frame | Operational Benefit: Allows for quick replacement of worn sections without dismantling the entire deck; enables easy configuration changes (e.g., different cloth sizes per deck) | ROI Impact: Reduces cloth changeout labor time by over 50% and minimizes spare parts inventory.

Advanced Isolation System | Technical Basis: Multilayered rubber shear mounts or air springs | Operational Benefit: Isolates over 95% of dynamic forces from being transmitted to the support structure | ROI Impact: Eliminates structural damage repairs, reduces ambient noise, and permits installation on elevated platforms without reinforcement.

AbrasionResistant Lining Package | Technical Basis: Wear plates of AR400 steel or replaceable polyurethane liners at all impact points (feed box, discharge lips) | Operational Benefit: Protects critical wear areas from rapid degradation caused by abrasive coke flow | ROI Impact: Lowers longterm capital expenditure on body repairs by protecting the primary chassis.

4. COMPETITIVE ADVANTAGES

| Performance Metric | Industry Standard | Our Coke Vibration Screen Solution | Advantage (% Improvement) |
|||||
| Screening Efficiency | 8590% efficiency under optimal conditions | Maintains 9295% efficiency via antiblinding technology & optimized Gforce | +58% Product Yield |
| Screen Cloth Life | 36 months for standard wire cloth in primary sizing | 814 months for specialized polyurethane/clad panels | +100%+ Service Life |
| Annual Maintenance Downtime | 120180 hours per year for drive servicing, cloth changes, and structural repairs | Estimated 4060 hours per year due to modular design & external motor drive | 60% Downtime |
| Force Transmission to Structure | Up to 25% of dynamic force transmitted via basic coil spring isolators | <5% force transmitted via highperformance shear mounts or air springs | 80% Vibration Transfer |
| Energy Consumption per Ton | Varies widely; older bruteforce designs operate at fixed high power | Efficient motor design with potential for variable frequency drive (VFD) control | Up to 15% Energy Use |

5. TECHNICAL SPECIFICATIONS

Capacity/Rating: Modeldependent; standard range from 500 MTPH to 2,500 MTPH of dry coke.
Power Requirements: Dual motor drives from 2 x 15 kW to 2 x 55 kW (400/690V, 50/60Hz). Variable Frequency Drive (VFD) optional.
Material Specifications: Mainframe – Carbon steel (ST37/52); Wear surfaces – AR400 steel or premium polyurethane; Screen panels – Polyurethaneclad steel wire or hightensile rubber.
Physical Dimensions: Typical singledeck unit (width x length): e.g., 2.4m x 6.0m to 3.0m x 9.0m.
Environmental Operating Range: Designed for ambient temperatures from 20°C to +45°C. Dusttight enclosures available for motor drives (IP66). Not rated for explosive atmospheres without additional certification.

6. APPLICATION SCENARIOS

[Steel Mill – Blast Furnace Feed] Challenge: A major integrated steel mill experienced inconsistent blast furnace burden permeability due to excessive fines (<10mm) in their screened metallurgical coke feed.

[Solution] Implementation of a customdesigned primary Coke Vibration Screen featuring a twodeck configuration with stringent cut points and aggressive antiblinding panels on the top deck.

[Results] Fines content in furnace feed was reduced from an average of ~12% to a consistent <7%. This contributed to improved gas flow in the blast furnace, resulting in an estimated ~3% reduction in specific coke rate (kg coke/tonne hot metal).

[Petroleum Coke Processing Plant] Challenge: A petcoke processor faced severe screen cloth blinding within hours when handling material with residual surface hydrocarbons ("sticky petcoke"), requiring multiple daily shutdowns.

[Solution] Deployment of a specialized Coke Vibration Screen utilizing nonadhesive heated screen decks combined with ultraflexible urethane screen panels.

[Results] Continuous operating time between blinding events increased from ~8 hours to over one week (~168+ hours), increasing plant availability by approximately two full production days per month.

7. COMMERCIAL CONSIDERATIONS

Pricing Tiers: Equipment pricing is structured based on capacity (throughput), size (deck area), and material specification grade (Standard Duty vs Super HeavyDuty).
Optional Features: Upgrades include stainless steel components for corrosion zones, dust encapsulation covers, skirtboard systems, advanced condition monitoring sensors (vibration/temperature), spray bar systems for controlled dust suppression,
and custom paint systems for harsh environments.
Service Packages: Available packages range from basic commissioning support up through comprehensive annual inspection contracts that include vibration analysis reports,
wear part audits,
and prioritized spare parts provisioning.
Financing Options: Flexible commercial terms can be discussed,
including outright purchase,
extended payment plans aligned with project milestones,
or leasing structures through thirdparty partners.

8.FAQ

1.Q:What if our incoming feed size distribution varies significantly?
A:The dualvibration motor drive allows adjustment of vibration amplitude,
which can be manually tuned
or automated via PLC/VFD control
to adapt Gforce
for different feed conditions while maintaining separation efficiency.

2.Q.How does this equipment integrate with our existing conveyor system?
A.We design inlet heights
and discharge chute configurations
to match your specified interface points.
Detailed layout drawings are provided during the proposal stage
for your engineering team's review.

3.Q.What is the typical lead time?
A.For standard configurations,
lead times range from XX weeks upon order confirmation
and finalization of technical drawings.Customized solutions may require additional engineering time.

4.Q.Are spare parts readily available?
A.We maintain an inventory
of critical wear components—such as screen panels,
isolation mounts,
and motor sets—for expedited shipment.A recommended initial spare parts list will be provided.

5.Q.What level of foundation preparation is required?
A.The equipment requires a flat,
level reinforced concrete foundation capable
of supporting its static weight.Detailed foundation load drawings—including static
and dynamic loads—are supplied as part
of our technical documentation package.

6.Q.Can you provide performance guarantees?
A.We offer contractual guarantees on throughput capacity under defined feed conditions
and screening efficiency based on agreedupon particle size distribution data.Previous client field data supports these commitments.

7.Q.Do you offer operator training?
A.Comprehensive training at your site during commissioning is included.This covers safe operation,routine inspection procedures,and basic troubleshooting steps