1. PAINPOINT DRIVEN OPENING

Is your coke handling operation struggling with inefficient screening that impacts downstream quality and profitability? Common challenges with inadequate coke vibration screens include:

Excessive Fines Contamination: Inconsistent particle separation allows undersized coke fines to enter blast furnace feed, disrupting burden permeability and increasing fuel rates. This can increase operational costs by 35%.
Frequent Screen Clogging & Downtime: Sticky, moist coke can rapidly blind screen decks, requiring frequent shutdowns for manual cleaning. Unplanned downtime of 23 hours per event directly cuts production throughput.
High Maintenance & Replacement Costs: Standard screens with inferior materials or unbalanced vibration mechanisms suffer from accelerated wear on decks, springs, and exciters, leading to high spare part consumption and labor costs.
Inconsistent Throughput: Underpowered or poorly designed screens cannot handle variable feed rates, creating bottlenecks in your material handling circuit and limiting plant capacity.

Are you searching for a robust screening solution that delivers consistent coke classification, maximizes uptime, and provides a measurable return on investment? The right industrialgrade coke vibration screen is a critical component for cost control.

2. PRODUCT OVERVIEW

This product line comprises heavyduty linear motion vibrating screens engineered specifically for the dry screening of metallurgical coke. Designed to handle abrasive materials and highimpact loads at transfer points, these units ensure precise separation of coke into defined size fractions (e.g., blast furnace nut coke, breeze).

Operational Workflow:
1. Controlled Feed: Coke is discharged from a conveyor onto the screen’s feed box, which distributes material evenly across the full width of the screening deck.
2. Efficient Stratification & Separation: A dualshaft exciter generates a linear throwing motion, stratifying material. Oversize particles travel across the deck surface while undersize material passes through the screen apertures.
3. Discharge: Separated fractions are discharged via distinct chutes—oversize to crusher or product stockpile, onsize to product conveyor, and fines (breeze) to a dedicated collection system.

Application Scope: Primary sizing of hot or cold metallurgical coke in coke plants, steel mills, and bulk handling terminals. Ideal for capacities from 100 to 1500+ TPH.

Limitations: Not designed for wet screening applications or for materials with extreme adhesive properties without specialized deck treatments.

3. CORE FEATURES

Modular Deck System | Technical Basis: Boltin panel design with multiple tensioning options | Operational Benefit: Allows for rapid panel replacement (<4 hours) and easy adaptation of aperture size/shape | ROI Impact: Reduces changeout downtime by up to 60% versus welded systems.
HeavyDuty Dual Shaft Exciter | Technical Basis: Synchronized counterrotating masses with forced lubrication | Operational Benefit: Generates a stable linear motion; external mounting simplifies maintenance access without entering the screen body | ROI Impact: Proven mean time between repairs (MTBR) exceeding 12,000 hours under continuous operation.
AbrasionResistant Lining Package | Technical Basis: Bolton wear plates (AR400/500) at feed points and sidewalls | Operational Benefit: Protects structural steel from abrasive wear, extending main body service life beyond 10 years | ROI Impact: Eliminates costly body replacement and major weld repair campaigns.
Tuned Spring Suspension | Technical Basis: Helical steel springs or rubber buffers calculated for specific screen mass and stroke | Operational Benefit: Isolates up to 80% of dynamic forces from the supporting structure, minimizing structural fatigue and vibration transmission | ROI Impact: Lowers civil engineering requirements and prevents ancillary equipment damage.
Dust Containment Skirting | Technical Basis: Multistage rubber sealing system integrated with the screen frame | Operational Benefit: Significantly reduces airborne coke dust emissions at transfer points, improving site environmental compliance | ROI Impact: Mitigates risk of regulatory fines and reduces housekeeping labor.
Centralized Greasing Points | Technical Basis: Lube lines routed to all major bearing points from accessible locations | Operational Benefit: Enables safe lubrication during operation in under 15 minutes per shift as part of preventive maintenance | ROI Impact: Extends bearing life by ensuring consistent lubrication; prevents catastrophic failure.

4. COMPETITIVE ADVANTAGES

| Performance Metric | Industry Standard Benchmark | Our Coke Vibration Screen Solution | Advantage (% Improvement) |
| : | : | : | : |
| Deck Panel Service Life| Standard woven wire panels last 24 months in primary sizing.| Polyurethane/Modular rubber panels with reinforced edges.| +150% to +300% lifespan |
| Screen Availability| ~92%, factoring in blinding cleanouts & panel changes.| >96%, due to antiblinding systems & quickchange decks.| +4 percentage points |
| Energy Efficiency| Single motor drives with mechanical couplings.| Directdrive exciter system with highefficiency motors.| Up to 15% lower kW/ton |
| Force Transmission| Up to 70% of dynamic force transmitted to structure.| 60% reduction |

5. TECHNICAL SPECIFICATIONS

Capacity Range: Modeldependent from 150 TPH to 1,200 TPH for coke sizing (bulk density ~0.5–0.7 t/m³).
Screen Deck Configuration: Single or double deck; standard widths from 1.5m to 3m; lengths from 4m to 8m.
Drive Unit: Dualshaft exciter powered by twin TEFC industrial motors (IP55/IP65). Power range: 7.5 kW – 45 kW total.
Vibration Characteristics: Stroke range adjustable between 812mm; frequency fixed per model (~8001000 RPM).
Deck Materials Options: Hightensile woven wire mesh (standard), polyurethane panels (premium), rubberclad perforated plate (for abrasion).
Construction: Main frame stiffened carbon steel (S355JR). Wear surfaces lined with replaceable AR400/500 steel.
Operating Environment: Ambient temperature range 20°C to +50°C; suitable for outdoor installation with standard protection.

6. APPLICATION SCENARIOS

Integrated Steel Plant Blast Furnace Feed Line

Challenge A major steel producer faced frequent blinding of screens by moist coke fines during monsoon season, causing hourly throughput drops exceeding 30%. Manual rodding was hazardous and insufficient.
Solution Installation of two widebody linear motion screens featuring polyurethane decks with antiblinding ball trays.
Results Screen availability improved from ~88% to over 96% during wet months; consistent nut coke sizing improved BF burden distribution.

Merchant Coke Production Facility

Challenge The client needed higher screening fidelity to produce a premium lowfines product commandeering higher market prices but operated aging screens prone to fatigue cracks.
Solution Replacement with two heavyduty models featuring external exciters and modular decks designed for quick aperture changes between different product grades.
Results Fines content in the premium product grade was reduced by over half (<2%). Flexibility increased as product changeovers were completed in one shift instead of two.

7. COMMERCIAL CONSIDERATIONS

Our approach ensures you receive a costeffective solution matched precisely to your operational demands.

Pricing is structured across three tiers:
1. Standard Duty Series – For lowercapacity (900 TPH) or severe environments includes enhanced structural design custom linings

Optional Features:
• Enclosed dusttight covers
• Heating systems for deck panels
• Advanced condition monitoring sensors
• Custom discharge hoods

Service Packages:
• Basic commissioning support
• Comprehensive annual inspection contracts
• Critical spare parts kits guaranteed fast delivery

Financing Options:
We work with partners offer flexible leasing arrangements capital expenditure constraints allowing predictable monthly payments tied directly operational savings achieved

FAQ

Q What if my existing foundation isn't designed for high dynamic loads?
A Our engineering team can provide retrofit isolation solutions including inertia bases that significantly reduce transmitted forces making our screens compatible existing structures most cases

Q How does this screen handle variations feed rate?
A The linear motion design inherently handles surge loads better than circular motion alternatives The consistent throwing action maintains stratification efficiency even at ±20% rated capacity preventing loss performance during feeder fluctuations

Q Are spare parts readily available?
A Yes We maintain regional stock critical wearing items like deck panels spring sets seal kits Standard lead times nonstock items are published transparently our service portal

Q Can you provide integration support our current PLC/Material Handling system?
A All units come equipped standard motor starters local control panel Interfaces provided allow remote start/stop fault signaling Integration guidance documents provided facilitate connection your central control room

Q What typical warranty period covers?
A We offer comprehensive month warranty on all components against defects materials workmanship Extended warranty available purchase covers structural integrity years demonstrating confidence build quality