Commercial Coke Vibration Screen: HighCapacity Sizing Solutions for Metallurgical Processing

The Hidden Cost of Inefficient Coke Screening

Every ton of coke that passes through an undersized or poorly calibrated screening system carries a measurable price tag. Plant managers in metallurgical operations face a familiar set of challenges:

• Oversized product contamination: When +80mm coke fragments slip through worn or improperly tensioned screen media, you risk customer rejection penalties that can reach 37% of contract value per shipment
• Premature screen deck failure: Standard wire mesh screens handling abrasive metallurgical coke typically require deck replacement every 400600 operating hours, with each changeout costing $8,000$15,000 in parts and labor downtime
• Dust carryover and environmental compliance: Inefficient screening generates fugitive dust that can trigger EPA or local regulatory fines averaging $25,000 per violation incident
• Throughput bottlenecks: A screen operating at 6570% efficiency forces your crusher and conveyor system to run longer cycles, increasing energy consumption by 1218% per ton processed
• Blinding and pegging: Moisture content above 5% in coke feed causes standard screen media to blind within hours, reducing effective screening area by up to 40%

Are your current screening assets delivering the separation accuracy your downstream processes demand? Can your operation justify the cumulative cost of frequent media replacement, rejected shipments, and compliance penalties?

Product Overview: Commercial Coke Vibration Screen

The Commercial Coke Vibration Screen is a heavyduty, linearmotion screening system engineered specifically for metallurgical coke classification in blast furnace feed preparation, foundry coke production, and calcined petroleum coke processing. This equipment operates on a dualshaft vibrator mechanism that generates a controlled linear stroke, directing material across the screen deck at a consistent velocity for optimal stratification and separation.

Operational Workflow

1. Feed Introduction: Coke material (typically 0100mm) enters the screen feed box via a chute or conveyor transfer point, where a deflector plate distributes material evenly across the full deck width
2. Stratification: The linear vibration pattern causes smaller particles to migrate downward through the material bed while larger fragments rise to the top layer
3. Size Separation: Material passes over woven wire mesh or polyurethane panels with aperture sizes configured to your specific cut points (typically 25mm, 40mm, or 80mm)
4. Oversize Discharge: Material retained on the screen surface travels to the discharge end and exits through the oversize spout for further crushing or direct loading
5. Undersize Collection: Fines passing through the screen apertures collect in the underpan and discharge through a separate outlet to the fines conveyor or storage bin

Application Scope

This screen is purposebuilt for dry screening of metallurgical coke with moisture content below 8%. It handles feed rates from 50 to 300 tons per hour depending on deck configuration and cut point requirements. The equipment is suitable for:

• Blast furnace coke classification (2580mm product range)
• Foundry coke sizing (80150mm oversize separation)
• Nut coke and breeze coke recovery (625mm fractions)
• Petroleum coke processing in anodegrade applications



Limitations: This screen is not designed for wet screening applications, nor is it suitable for materials with high clay content that may cause rapid media blinding. For coke feed with moisture above 8%, a heated deck option or predrying stage is recommended.

Core Features

HighTensile Screen Media System | Technical Basis: Woven wire mesh constructed from 304 stainless steel or oiltempered highcarbon steel with 4555 HRC hardness | Operational Benefit: Withstands the abrasive action of coke particles without premature wear, maintaining consistent aperture size for accurate separation | ROI Impact: Extends media service life to 1,2001,800 hours, reducing annual replacement costs by 5565%

DualShaft Linear Motion Drive | Technical Basis: Two counterrotating vibrator shafts with precisionbalanced eccentric weights generating a 45degree linear stroke | Operational Benefit: Provides consistent material conveyance velocity (0.150.25 m/s) across the full deck length, preventing material pileup and ensuring maximum screen utilization | ROI Impact: Achieves 9597% screening efficiency versus 7075% for circularmotion screens, reducing recirculation loads by 30%

QuickTension Screen Deck System | Technical Basis: Hydraulic or manual tensioning rails with quickrelease clamps positioned on 300mm centers | Operational Benefit: Your maintenance crew can complete a full deck change in 4560 minutes versus 46 hours on conventional systems | ROI Impact: Reduces changeout labor costs by $1,200$2,500 per event and cuts downtimerelated production losses by 85%

DustTight Sealed Body | Technical Basis: Continuous welded construction with bolted access doors and rubbersealed inspection ports | Operational Benefit: Contains fugitive dust within the screen housing, directing it to the integrated dust collection port | ROI Impact: Eliminates dustrelated regulatory fines and reduces plant cleanup labor by 1215 hours per week

Adjustable Stroke and Amplitude | Technical Basis: Interchangeable eccentric weights allowing stroke adjustment from 814mm and amplitude tuning from 47mm | Operational Benefit: Your operators can optimize screen performance for varying coke feed conditions, including changes in moisture, particle size distribution, and feed rate | ROI Impact: Maintains 90%+ screening efficiency across variable feed conditions, preventing costly production interruptions

WearResistant Liner Protection | Technical Basis: 12mm thick AR400 abrasionresistant steel liners on feed box, side plates, and discharge areas | Operational Benefit: Protects structural components from impact damage and abrasive wear caused by highvelocity coke particles | ROI Impact: Extends screen structural life to 1015 years, reducing capital replacement costs by $80,000$150,000 over the equipment lifecycle

Modular Deck Design | Technical Basis: Individual screen panels (300mm x 300mm) that can be replaced independently without removing the full deck | Operational Benefit: When localized wear occurs, your crew replaces only the affected panels rather than the entire deck surface | ROI Impact: Reduces media replacement costs by 4060% compared to fulldeck replacement systems

Competitive Advantages

| Performance Metric | Industry Standard (Conventional Screens) | Commercial Coke Vibration Screen | Advantage (% Improvement) |
|||||
| Screening Efficiency | 7078% | 9297% | +24% average |
| Screen Media Service Life | 400600 hours | 1,2001,800 hours | +200% |
| Deck Changeout Time | 46 hours | 4560 minutes | 80% |
| Throughput Capacity (per m²) | 812 t/h/m² | 1520 t/h/m² | +50% |
| Energy Consumption | 0.81.2 kWh/ton | 0.50.7 kWh/ton | 35% |
| Unscheduled Downtime | 812% of operating time | 24% of operating time | 67% |
| Dust Emissions | 5080 mg/m³ | 1525 mg/m³ | 65% |

Technical Specifications

| Parameter | Specification |
|||
| Model Range | CVS1536 to CVS2448 |
| Screen Area | 5.4 m² to 11.5 m² |
| Number of Decks | 1 or 2 (customizable) |
| Feed Size (Max) | 100 mm |
| Separation Cut Points | 6 mm to 80 mm (adjustable) |
| Capacity Range | 50300 t/h (depending on model and cut point) |
| Motor Power | 2 x 7.5 kW to 2 x 22 kW |
| Vibration Frequency | 750900 RPM |
| Stroke Length | 814 mm (adjustable) |
| Amplitude | 47 mm |
| Screen Angle | 1525 degrees (adjustable) |
| Material of Construction | ASTM A36 structural steel with AR400 wear liners |
| Screen Media | 304 stainless steel or highcarbon steel wire mesh |
| Overall Dimensions (L x W x H) | 4.5m x 2.4m x 2.2m to 7.2m x 3.0m x 2.8m |
| Total Weight | 4,800 kg to 12,500 kg |
| Operating Temperature Range | 20°C to +60°C |
| Noise Level | 8590 dB(A) at 1 meter |
| Dust Sealing | Continuous welded body with bolted access doors |
| Vibration Isolation | Spring suspension system with 90% isolation efficiency |

Application Scenarios

Integrated Steel Plant Blast Furnace Feed | Challenge: A 2.5 MTPA steel plant was experiencing inconsistent coke size distribution in blast furnace feed, with 12% of material exceeding the 80mm upper limit, causing burden permeability issues and increased coke consumption of 15 kg per ton of hot metal | Solution: Installation of two CVS2448 doubledeck Commercial Coke Vibration Screens configured with 80mm top deck and 25mm bottom deck apertures, processing 220 t/h of coke each | Results: Oversize contamination reduced to 1.5%, coke consumption decreased by 12 kg per ton of hot metal, and annual savings of $2.8 million achieved through reduced coke usage and improved furnace productivity

Foundry Coke Producer Quality Upgrade | Challenge: A foundry coke manufacturer faced customer complaints regarding inconsistent product sizing, with 8% of shipments containing undersize material below 80mm, resulting in contract penalties of $180,000 annually | Solution: Deployment of a CVS1836 singledeck screen with 80mm aperture and adjustable amplitude set to 6mm, processing 85 t/h of foundry coke | Results: Product consistency improved to 99.2% within specification, penalty payments eliminated, and the producer secured two new longterm supply contracts worth $4.5 million annually

Petroleum Coke Processing Facility | Challenge: A calcined petroleum coke plant needed to separate 6mm fines from 25mm product for anodegrade applications, but existing screens achieved only 68% efficiency, causing excessive fines carryover into the product stream | Solution: Installation of a CVS2040 doubledeck screen with 25mm top deck and 6mm bottom deck, equipped with polyurethane panels for extended wear life | Results: Screening efficiency improved to 94%, fines content in product reduced from 9% to 2.5%, and the facility increased saleable product yield by 6.5%, generating an additional $1.2 million in annual revenue

Commercial Considerations

Equipment Pricing Tiers

| Model | Capacity Range | Price Range (USD) |
||||
| CVS1536 (Single Deck) | 50100 t/h | $45,000 $68,000 |
| CVS1836 (Single/Double Deck) | 80150 t/h | $72,000 $105,000 |
| CVS2040 (Double Deck) | 120200 t/h | $98,000 $145,000 |
| CVS2448 (Double Deck) | 180300 t/h | $135,000 $195,000 |

Optional Features and AddOns

• Heated Screen Decks: $8,500$12,000 per deck for highmoisture applications
• Polyurethane Screen Panels: $4,200$6,800 per deck (versus standard wire mesh)
• Automated Lubrication System: $3,800$5,500 for centralized greasing
• Remote Monitoring Package: $6,500$9,200 including vibration sensors and control interface
• Dust Collection Hood and Ducting: $7,200$11,000 depending on configuration

Service Packages

| Package | Coverage | Annual Cost (USD) |
||||
| Basic | 2 preventive maintenance visits, phone support | $4,500 |
| Standard | 4 preventive maintenance visits, 24hour parts dispatch, priority phone support | $9,800 |
| Comprehensive | Monthly inspections, all wear parts included, 8hour onsite response, full labor coverage | $18,500 |

Financing Options

• Equipment Lease: 3660 month terms with $1 buyout option, monthly payments from $1,350
• Deferred Payment: 90day payment deferral with 10% down payment
• TradeIn Program: Credit of 1525% of new equipment cost for qualifying used screens
• PerformanceBased Contract: Payperton processed structure with minimum volume commitment

Frequently Asked Questions

Q: Can the Commercial Coke Vibration Screen handle coke with varying moisture content?
A: The screen operates effectively with coke moisture up to 8%. Above this level, we recommend the heated deck option or a predrying stage. Field data from installations in coastal environments shows that with the heated deck option, screening efficiency remains above 90% even at 1012% moisture content.

Q: What is the typical lead time for delivery and installation?
A: Standard models ship within 68 weeks from order confirmation. Installation typically requires 57 days onsite, including foundation preparation, equipment placement, and commissioning. Our installation team works alongside your maintenance crew to ensure proper training during the commissioning process.

Q: How does this screen compare to highfrequency vibrating screens for coke applications?
A: Highfrequency screens operate at 1,5003,000 RPM and are better suited for fine separation below 6mm. For metallurgical coke sizing in the 2580mm range, the linearmotion Commercial Coke Vibration Screen provides superior stratification and higher throughput capacity. Industry testing demonstrates that linearmotion screens achieve 1520% higher efficiency than highfrequency units for coarse coke applications.

Q: What warranty coverage is provided with the equipment?
A: The Commercial Coke Vibration Screen carries a 24month structural warranty covering frame, side plates, and cross members. The vibrator mechanism is warranted for 18 months or 10,000 operating hours, whichever comes first. Screen media is considered a wear item and is excluded from warranty coverage.

Q: Can the screen be integrated into an existing automated control system?
A: Yes, the screen can be equipped with a control interface compatible with Modbus, Profibus, or Ethernet/IP protocols. This allows your plant control system to monitor vibration amplitude, motor amperage, and bearing temperatures in real time. The optional remote monitoring package adds automated alerts for abnormal operating conditions.

Q: What are the minimum space requirements for installation?
A: The CVS1536 requires a footprint of approximately 4.5m x 2.4m with 3.5m overhead clearance for maintenance access. Larger models require proportionally more space. We recommend a minimum clearance of 1.5 meters on all sides for safe operation and maintenance activities.

Q: How does the pricing compare to competitive screening equipment?
A: Our equipment is priced 1015% below comparable European and Japanese brands while offering equivalent or superior specifications. The competitive pricing reflects our manufacturing efficiency, not reduced quality. Field data from 40+ installations demonstrates that total cost of ownership over a 10year period is 2030% lower than competing solutions due to reduced maintenance requirements and longer component life.

Q: What training do you provide for operator and maintenance personnel?
A: Our commissioning package includes 2 days of onsite training covering screen operation, vibration parameter adjustment, media replacement procedures, and preventive maintenance schedules. We also provide comprehensive documentation including operating manuals, maintenance guides, and parts catalogs. Additional training sessions can be arranged at $850 per day.