1. PAINPOINT DRIVEN OPENING

Is your coke screening operation plagued by persistent, costly inefficiencies? For plant managers and engineering contractors, the challenges of screening metallurgical coke directly impact throughput, product quality, and bottomline profitability. Common pain points include:

Excessive Fines Generation: Aggressive or poorly tuned vibration can degrade premium coke into undersized fines, reducing valuable product yield and creating excess waste material.
Blinding & Carryover: Sticky coke breeze and moisture cause screen mesh blinding, while insufficient vibration leads to material carryover. Both scenarios force frequent stoppages for manual cleaning and result in inconsistent size fractions.
High Maintenance Downtime: Constant, heavyduty operation leads to premature failure of screen decks, springs, and vibrator motors. Unplanned downtime for repairs disrupts blast furnace feed schedules.
Inefficient Capacity Management: A singlescreen setup cannot adapt to varying feed rates or different size specifications, creating bottlenecks in highvolume operations.

Are you facing rising operational costs due to screen maintenance and product loss? Is your current equipment failing to deliver consistent grade separation under full load? The solution requires a purposeengineered approach to material handling.

2. PRODUCT OVERVIEW

The Coke Vibration Screen is a heavyduty industrial screening machine designed for the precise separation of metallurgical coke into defined size fractions (e.g., blast furnace coke, nut coke). It operates on the principle of applied vibration to stratify and convey material across a screening surface.

Operational Workflow:
1. Controlled Feed: Sized coke from the crusher is evenly distributed onto the inlet end of the vibrating screen deck via a feed box or conveyor.
2. Stratification & Separation: Highfrequency, lowamplitude vibration fluidizes the bed of material. Smaller particles sift through the apertures of the screen cloth (panel), while oversized particles travel across the deck surface.
3. Efficient Discharge: Correctly sized material (throughs) discharges from a lower outlet chute. Oversized material (overs) travels along the deck length and discharges from the end, directed to downstream processes.

Application Scope: Primary and secondary sizing of metallurgical coke in coke plants, steel mills, and ferroalloy facilities. Suitable for hot or cold coke screening.

Limitations: Not designed for wet screening or slurries without significant modification. Maximum lump size is constrained by feed chute and deck design specifications.

3. CORE FEATURES

Our Coke Vibration Screen is engineered to address specific industry challenges through robust design principles.

Tuned MultiMass Vibration System | Technical Basis: Dual eccentric shaft vibrator with adjustable counterweights | Operational Benefit: Generates a linear throwing motion that efficiently conveys material while minimizing vertical impact that causes degradation | ROI Impact: Field data shows a reduction in fines generation by up to 15%, preserving saleable product volume.
Modular, QuickChange Screen Decks | Technical Basis: Tensioned polyurethane or rubber clad steel panels with hookstrip mounting | Operational Benefit: Your operators can replace worn panels or change aperture size in hours instead of days | ROI Impact: Reduces planned downtime for screen changes by over 60%, increasing annual operating hours.
HeavyDuty Coil Spring Isolation | Technical Basis: Highcarbon steel coil springs at each support point | Operational Benefit: Isolates over 80% of dynamic forces from the supporting structure, preventing foundation damage and reducing structural noise | ROI Impact: Lowers longterm structural maintenance costs and extends facility equipment life.
Enclosed DustTight Design | Technical Basis: Bolted covers with continuous rubber gasketing at all access points | Operational Benefit: Contains coke dust within the system for improved plant air quality and worker safety | ROI Impact: Mitigates environmental compliance risks and reduces housekeeping labor costs.
Variable Frequency Drive (VFD) Control | Technical Basis: Integrated motor controller allowing adjustment of vibration frequency (RPM) | Operational Benefit: Allows finetuning of amplitude and material travel speed to match specific feed rates or moisture content in realtime | ROI Impact: Optimizes separation efficiency across varying conditions, improving overall throughput consistency by an estimated 1020%.

4. COMPETITIVE ADVANTAGES

| Performance Metric | Industry Standard | Our Coke Vibration Screen Solution | Advantage (% Improvement) |
| : | : | : | : |
| Screening Efficiency (Grade Accuracy) | ~8590% under ideal conditions | Consistent 9295% across rated load range| +5% average improvement |
| Panel ChangeOut Time (for entire deck) | 1624 hours per deck section| 68 hours per deck section| ~65% faster |
| Vibrator Bearing Life (L10) under full load| 1215 months average| 1824 months documented average| +50% extended service life |
| Transmitted Dynamic Force to Structure| High; requires reinforced bases| Low; standard plant flooring often sufficient| >80% force isolation |

5. TECHNICAL SPECIFICATIONS

Specifications are modeldependent; below represents a midrange unit suitable for standard coke plant duty.

Model Designation: CVS2448
Capacity Rating: Up to 600 metric tons per hour (dependent on aperture size and material gradation)
Screen Deck Configuration: Single deck, two bearing
Deck Size & Inclination: 2.4m wide x 4.8m long; nominal 20degree incline
Power Requirements: Dual 15 kW (20 HP), IP66rated motors; 400V/50Hz/3Ph (other voltages available)
Vibration Frequency & Amplitude: Adjustable via VFD from 8001000 RPM; nominal amplitude of 5mm
Material Specifications: Main frame S355JR structural steel; Deck frames abrasionresistant steel; Screen panels tensioned polyurethane with steel reinforcement.
Operating Temperature Range: 20°C to +120°C ambient (handles hot coke up to ~80°C surface temperature).
Dust Protection Rating: IP54 standard enclosure.

6. APPLICATION SCENARIOS

Integrated Steel Mill – Blast Furnace Feed Preparation

Challenge: A major mill experienced inconsistent blast furnace performance traced back to variable nut coke size distribution from their aging screens. Excessive fines were being injected into the furnace alongside pulverized coal.
Solution: Installation of two parallel CVS1848 Coke Vibration Screens with precisely calibrated polyurethane decks for nut coke separation.
Results: Achieved consistent sizing with less than 3% oversize/fines deviation. This contributed to a documented improvement in furnace permeability stability.

Merchant Coke Producer – Product Line Flexibility

Challenge: The producer needed to switch between three different customerspecified size fractions without incurring days of downtime for mechanical adjustments on their legacy screens.
Solution: Implementation of our CVS2448 screen with a quickchange modular deck system using three pretensioned panel sets stored onsite.
Results: Changeover time between product grades reduced from approximately one shift down to two hours per screen line.

7. COMMERCIAL CONSIDERATIONS

Our Coke Vibration Screens are offered in standardized models configured for your specific capacity needs.

Pricing Tiers
Base Model Series (1000 TPH): Designed for unique layouts or extremeduty cycles requiring specialized materials or configurations

Optional features include stainless steel contact surfaces for corrosive environments advanced dust extraction sparging systems for antiblinding automated lubrication systems

Service packages range from basic commissioning support up comprehensive annual inspection parts supply agreements Financing options including leasing capital equipment loans are available through our financial partners

8 FAQ

Q What level foundation preparation required installation?
A Our screens are designed be installed on level concrete foundations capable supporting static weight dynamic loads Detailed civil drawings anchor bolt templates provided purchase

Q Can existing motor control centers MCCs used power these screens?
A Yes provided MCC meets required voltage current specifications has appropriate overload protection We provide full interface documentation facilitate integration

Q How does this screen handle wet sticky coke conditions?
A While primarily designed dry screening optional features like heated decks ball tray antiblinding systems can specified mitigate temporary moisture issues For consistently high moisture content alternative technologies may recommended

Q What typical lead time delivery?
A For standard models stock components lead time typically weeks Custom engineered units require longer based complexity engineering manufacturing schedule confirmed upon order placement

Q Are spare parts readily available?
A We maintain global inventory critical wear parts vibrator assemblies springs panel fasteners ensure minimal downtime support Guaranteed hour dispatch available under our premium service contracts