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Is Inconsistent Coke Sizing Costing You $50,000+ Per Shift in Rejects and Downtime?

In the metallurgical and petroleum coke processing industry, a single screen deck failure or a 2% deviation in particle size distribution can halt a calciner or disrupt a downstream anode plant. You face the daily challenges of:

• Blinding and Peening: Sticky, highmoisture coke fines clogging standard screens, reducing effective open area by up to 40%.
• Structural Fatigue: Constant highGforce vibration cracking welds on nonreinforced frames, leading to unplanned 12hour maintenance shutdowns.
• Inconsistent Cut Points: Inefficient stratification causing oversize material to contaminate fines, forcing recrushing cycles that waste energy and wear out crushers.
• Safety Compliance Risks: Operating without proper CE certification exposes your plant to regulatory fines and liability for worker safety.

Can your current screening equipment handle the abrasive, highimpact nature of green and calcined coke while maintaining a precise 6mm to 50mm separation? If not, your profit margin is being screened out.

Product Overview: The CE Marked Coke Vibration Screen Distributor

This is a heavyduty, linearmotion vibratory screener specifically engineered for the classification and distribution of petroleum coke, metallurgical coke, and foundry coke. It is designed to handle hightonnage feed streams (up to 500 TPH) while providing a precise, multideck separation.

Operational Workflow:
1. Feed Entry: Raw coke enters the distributor via a chute, landing on a wearresistant feed box to disperse the material evenly across the full screen width.
2. Stratification: Highamplitude, lowfrequency vibration (700900 RPM) causes heavier, larger particles to rise to the top layer, while fines migrate to the bottom deck.
3. Classification: Material passes through a series of polyurethane or heavyduty woven wire mesh decks (typically 24 decks) for precise sizing (e.g., +50mm, 2550mm, 1025mm, 10mm).
4. Distribution: Sized fractions are discharged through dedicated spouts, directly feeding downstream conveyors, storage bins, or calcining kilns.
5. Oversize Reject: Oversized material (+50mm) is directed to a crusher circuit or reject chute.

Application Scope: Ideal for green coke handling at refineries, calcined coke processing at anode plants, and blast furnace coke sizing at steel mills.
Limitations: Not recommended for wet, sticky materials with >15% surface moisture without the addition of a heated deck or ball tray cleaning system.

Core Features

HeavyDuty Exciter Assembly | Technical Basis: Dualshaft, counterrotating gearbox | Operational Benefit: Generates a linear stroke of 1014mm, ensuring deep bed stratification without vertical lift | ROI Impact: Reduces power consumption by 15% compared to circular motion screens, lowering annual energy costs by $8,000$12,000

CE Certified Structural Integrity | Technical Basis: Finite Element Analysis (FEA) designed side plates with 10mm thick Strenx 700 steel | Operational Benefit: Eliminates frame cracking under continuous 24/7 operation | ROI Impact: Extends equipment lifespan to 15+ years, reducing capital replacement costs by 30%

Modular Polyurethane Screen Panels | Technical Basis: Slotopening, abrasionresistant polyurethane (Shore A 90) | Operational Benefit: Reduces blinding from coke fines; panels are interchangeable in 15 minutes | ROI Impact: Increases screen deck life by 3x over woven wire, saving $4,500 annually in mesh replacement and labor

Integrated Feed Distributor Box | Technical Basis: Angled, replaceable AR400 steel liners | Operational Benefit: Prevents material segregation at the feed point, ensuring even load distribution | ROI Impact: Improves screening efficiency by 812%, reducing recirculating loads and energy waste

Automatic Lubrication System | Technical Basis: Centralized grease manifold with programmable timer | Operational Benefit: Ensures consistent bearing lubrication without operator intervention | ROI Impact: Extends bearing life by 2x, preventing catastrophic failures that cost $15,000+ in repairs and lost production

Vibration Isolation Base Frame | Technical Basis: Steel coil springs with 95% isolation efficiency | Operational Benefit: Transmits less than 5 kN of dynamic force to the support structure | ROI Impact: Eliminates the need for expensive reinforced concrete foundations, saving $20,000 in civil works per installation

Competitive Advantages



| Performance Metric | Industry Standard (Standard Screen) | CE Marked Coke Vibration Screen Distributor | Advantage (% improvement) |
| : | : | : | : |
| Screening Efficiency (6mm cut) | 7580% | 9295% | +1520% |
| Deck Life (Polyurethane) | 69 months | 1824 months | +100150% |
| Structural Frame Warranty | 1 year | 5 years (with FEA certification) | +400% |
| Noise Level at 1m | 95 dB(A) | 82 dB(A) | 14% (safer for operators) |
| Changeover Time (Deck) | 4 hours (2man crew) | 45 minutes (1man crew) | 81% |
| Power Consumption (per ton) | 0.8 kWh/ton | 0.55 kWh/ton | 31% |

Technical Specifications

| Parameter | Specification |
| : | : |
| Model | CVD2448 (2.4m x 4.8m) |
| Capacity | 250 500 TPH (depending on cut point) |
| Number of Decks | 2, 3, or 4 (configurable) |
| Screen Area | 11.5 m² per deck |
| Vibration Type | Linear Motion |
| Stroke | 10 14 mm (adjustable) |
| Vibration Frequency | 750 900 RPM |
| Motor Power | 2 x 15 kW (TEFC, IP55) |
| Material of Construction | Strenx 700 side plates, AR400 feed box |
| Screen Media | Polyurethane (slot or square opening) |
| Operating Temperature | 20°C to +80°C (ambient) |
| Weight (approx.) | 12,500 kg |
| Dimensions (L x W x H) | 6.2m x 3.0m x 2.8m |
| CE Certification | Yes (EN 12100, EN 602041) |

Application Scenarios

Green Coke Dewatering & Sizing at a Refinery

Challenge: A Gulf Coast refinery was experiencing 30% downtime on their coke drum dewatering screens due to blinding from 8% moisture content. Oversize material was damaging downstream crushers.
Solution: Installed a 3deck CE Marked Coke Vibration Screen Distributor with slotted polyurethane panels and a 12mm stroke.
Results: Screening efficiency increased to 94%. Crusher wear life doubled. Unplanned downtime dropped from 120 hours/year to 12 hours/year, saving $180,000 in lost production.

Calcined Coke Classification for Anode Production

Challenge: An aluminum smelter needed a precise 0.5mm to 6mm fraction for anode paste. Their existing screens produced high variability (+/ 1.5mm), causing anode quality issues.
Solution: Deployed a 4deck unit with a dedicated feed distributor to ensure even material spread.
Results: Particle size distribution tightened to +/ 0.3mm. Anode rejection rate fell from 4% to 0.5%. The ROI was achieved in 11 months due to reduced scrap and rework costs.

Blast Furnace Coke Screening at a Steel Mill

Challenge: A steel mill required a consistent +25mm fraction for their blast furnace. Their existing screens were structurally failing after 3 years due to high Gforces.
Solution: Replaced with a CEcertified unit featuring a heavyduty FEAdesigned frame and 5year structural warranty.
Results: Structural integrity issues eliminated. The +25mm fraction consistency improved to 98%. The plant achieved a 15% reduction in coke rate (kg coke per ton of iron) due to better burden permeability.

Commercial Considerations

Equipment Pricing Tiers (FOB, ExWorks):

• Base Model (2deck, manual lube): $85,000 $110,000
• Standard Model (3deck, auto lube, poly panels): $135,000 $175,000
• Premium Model (4deck, auto lube, heated decks, remote monitoring): $195,000 $250,000

Optional Features:

• Heated Screen Decks: +$18,000 (for highmoisture applications)
• Ball Tray Cleaning System: +$9,500 (for fine mesh, <3mm)
• Remote Vibration Monitoring System: +$12,000 (predictive maintenance)
• Custom Chute Work & Support Steel: +$15,000 $30,000

Service Packages:

• Standard Warranty: 2 years on mechanical components, 5 years on structural frame.
• Extended Service Plan (ESP): $8,500/year (includes 2 annual inspections, priority parts delivery, 24hour phone support).
• Full Turnkey Installation: $25,000 $45,000 (including commissioning and operator training).

Financing Options:

• Net 30/60 terms for qualified buyers.
• Leasetoown options starting at $2,800/month for the Standard Model.
• Performancebased payment: 10% upfront, 90% upon achieving 90%+ screening efficiency guarantee.

FAQ

1. What is the maximum moisture content this screen can handle for green coke?
The standard unit handles up to 12% surface moisture. For moisture levels between 12% and 18%, we recommend the optional heated deck system to prevent blinding. Above 18%, a thermal drying step is advised before screening.

2. How does the CE certification impact my plant’s safety compliance?
The CE mark certifies compliance with the EU Machinery Directive (2006/42/EC). This includes a full risk assessment, safety circuit design, and documentation. For plants in regulated jurisdictions, this reduces liability and simplifies safety audits.

3. Can this screen be retrofitted into my existing support structure?
Yes. The vibration isolation base frame transmits less than 5 kN of dynamic force. Most existing steel structures rated for 10 kN can support this unit without reinforcement. We provide a free structural load analysis with a purchase order.

4. What is the typical lead time for a custom configuration?
Standard models ship in 810 weeks. Custom configurations (e.g., specific deck angles, special materials) require 1216 weeks. We offer expedited production for an additional 15% fee, reducing lead time to 6 weeks.

5. How do I change the cut point for a different product specification?
Cut points are changed by swapping the polyurethane screen panels. A 2man crew can change a full deck in under 45 minutes. We stock over 50 standard opening sizes (0.5mm to 100mm) for immediate shipment.

6. What is the expected annual maintenance cost?
Annual maintenance costs average $4,000 $6,000. This includes bearing grease (every 40 hours), polyurethane panel replacement (every 1824 months), and exciter gearbox oil changes (every 2,000 hours). The automatic lubrication system reduces labor costs by 60%.

7. Do you provide performance guarantees?
Yes. We guarantee a minimum screening efficiency of 90% for your specified cut point (based on a representative material sample). If the unit fails to meet this benchmark after commissioning, we will adjust the stroke, angle, or deck configuration at no cost.