1. PAINPOINT DRIVEN OPENING

Is your coke handling operation plagued by persistent bottlenecks, excessive fines generation, and unplanned maintenance costs? For plant managers overseeing coke screening, common challenges directly impact the bottom line:
Blinding & Downtime: Moisture and sticky fines blind screen decks, halting production for manual cleaning. Each hour of downtime can cost thousands in lost throughput.
Inefficient Separation: Inconsistent particle size distribution leads to underperforming blast furnaces or rejected product from battery clients.
High Maintenance Burden: Conventional screens with numerous moving parts and intense vibration require frequent bearing changes, spring replacements, and structural welds.
Excessive Fines Generation: Aggressive, inefficient screening action breaks down coke, creating excess fines that degrade product value and create handling issues.
Energy Inefficiency: Overpowered drives running constantly to overcome blinding waste significant electrical power.

Are you searching for a screening solution that delivers consistent cut points, maximizes uptime, and reduces your total cost of ownership?

2. PRODUCT OVERVIEW

The Coke Vibration Screen is a highcapacity, heavyduty screening machine engineered for the precise separation of metallurgical coke and coke breeze in demanding processing environments. Its core function is to reliably size coke into specific fractions (e.g., blast furnace coke, nut coke) while removing fines.

Operational Workflow:
1. Feed & Distribution: Runofoven or crushed coke is fed onto the screen’s robust feed box, which evenly distributes material across the full width of the screening deck.
2. Stratified Separation: A dualmass vibratory system drives a linear or elliptical motion, stratifying material. Larger particles convey across the deck surface while smaller particles pass through the screen apertures.
3. Product Stream Segregation: Separated fractions are discharged via dedicated chutes—typically oversized material (overs), onspec product (mids), and fines (unders)—for routing to storage or downstream processes.

Application Scope: Primary and secondary screening of metallurgical coke, coke breeze separation, sinter feed preparation, and prescreening for crushing circuits.

Limitations: Not designed for sticky, nonfreeflowing materials without specialized deck technology. Maximum lump size is constrained by feed chute and deck design specifications.

3. CORE FEATURES

Modular Deck System | Technical Basis: Boltin panel design with multiple wear material options | Operational Benefit: Rapid panel changeout reduces downtime for aperture changes or wear replacement from hours to minutes. | ROI Impact: Cuts maintenance labor costs by up to 60% per changeout event.

DualMass Vibratory Drive | Technical Basis: Twomass oscillating system with subresonant tuning | Operational Benefit: Generates high acceleration for effective stratification while isolating dynamic forces from the support structure. | ROI Impact: Reduces structural fatigue damage by up to 80% and lowers foundation costs.

Advanced AntiBlinding Systems | Technical Basis: Combination of polyurethane tensioned decks and optional ball tray or air burst systems | Operational Benefit: Maintains clear screen apertures in highmoisture conditions for consistent throughput and product quality. | ROI Impact: Eliminates production stops for manual cleaning, increasing annual operating hours by an estimated 1015%.

DustEncapsulated Bearings & Lubrication | Technical Basis: Labyrinth seals with grease purge ports in a sealed housing | Operational Benefit: Protects critical drive bearings from abrasive coke dust ingress, the primary cause of bearing failure. | ROI Impact: Extends bearing service life by 35x, minimizing spare parts inventory and unexpected failures.

Variable Frequency Drive (VFD) Control | Technical Basis: PLCintegrated motor control allowing adjustable amplitude/frequency | Operational Benefit: Operators can finetune screen action for different feed conditions or product specifications without changing physical components. | ROI Impact: Optimizes efficiency for varying feed rates; can reduce energy consumption by up to 30% during lower throughput periods.

HeavyDuty Coil Spring Isolation | Technical Basis: Highcycle fatiguerated steel coil springs | Operational Benefit: Provides consistent vibration isolation across full operating load range, ensuring motion is directed into the bed of material. | ROI Impact: Improves screening efficiency (yield of onspec product) by ensuring stable operating dynamics.

4. COMPETITIVE ADVANTAGES

| Performance Metric | Industry Standard Coke Screen | Our Coke Vibration Screen Solution | Advantage (% Improvement) |
| : | : | : | : |
| Availability / Uptime| 9092%, frequent stops for blinding/deck wear| 96%+, sustained via antiblinding systems & modular decks| +5% operating time |
| Screening Efficiency| 8590% efficiency on moist coke| Consistent >94% efficiency across moisture ranges| +5% yield of onspec product |
| Annual Bearing Life| 612 months in dusty environments| 36+ months with sealed housing system| +200% service life |
| Deck ChangeOut Time| 816 hours per deck level| <4 hours per deck level with modular panels| 60% labor time |
| Energy Consumption per Ton| Baseline (100%) estimate| VFD optimization reduces consumption at partial load| 20 to 30% at variable flow |

5. TECHNICAL SPECIFICATIONS

Capacity / Rating: Models from 500 TPH to 2,500 TPH capacity for dry coke screening; specific capacity depends on aperture size and moisture content.
Power Requirements: Drive motors from 15 kW to 55 kW per unit; standard supply at 415V/50Hz or customized; includes softstart or VFD.
Material Specifications:
Deck Frames & Sideplates: Abrasionresistant steel (AR400/450).
Screening Media Options: Hightensile woven wire cloth (65Mn), tensioned polyurethane panels.
Chute Liners: Replaceable AR400 steel or ceramiclined.
Physical Dimensions: Typical unit footprint ranges from ~4m L x 2.5m W x ~2m H to ~8m L x ~3.5m W x ~3m H (excluding feed/discharge hoods).
Environmental Operating Range: Designed for ambient temperatures from 20°C to +45°C; dusttight enclosures standard; suitable for outdoor installation with appropriate protection.

6. APPLICATION SCENARIOS

[Integrated Steel Plant] | Challenge: A major mill faced inconsistent blast furnace performance due to variable nut coke size (1025mm) containing excessive fines (<6mm). Their existing screens blinded frequently in humid conditions.| Solution:| Installation of a dualdeck Coke Vibration Screen with polyurethane antiblinding panels on the bottom deck for precise fines removal.| Results:| Achieved consistent nut coke specification with <3% fines content. Screening efficiency reached 96%, contributing to a documented 2% reduction in blast furnace coke rate.

[Merchant Coke Producer] | Challenge: High maintenance costs from quarterly bearing failures and biannual structural weld repairs on aging screens caused over $120k annually in parts/labor/downtime.| Solution:| Replacement with two new Coke Vibration Screens featuring dustencapsulated bearing housings and a dualmass drive isolating forces from the structure.| Results:| Bearing service life extended beyond three years. Structural repairs were eliminated. Total annual maintenance costs related to screening were reduced by an estimated 70%.

7 COMMERCIAL CONSIDERATIONS

Our Coke Vibration Screens are offered under a tiered configuration model:

Standard Tier: Includes heavyduty base frame, dualmass drive with standard bearings, coil spring isolation, woven wire decks.
Performance Tier (Most Common): Adds modular polyurethane antiblinding decks on one or both levels,VFD control,and enhanced dust sealing packages.
Premium Tier: Incorporates full stainless steel internal liners,certified explosionproof components,and predictive maintenance sensors integrated into plant SCADA.

Optional features include enclosed dust hoods,customized chute work,various screen media types,and spray bar systems.

We support your investment through:
Comprehensive service packages covering scheduled inspections,vibration analysis,and priority parts supply.
Flexible financing options including equipment leasing,tailored payment plans,and lifecycle costbenefit analysis models.

8 FAQ

1\. Is this equipment compatible with our existing layout? We provide detailed interface drawings based on your chute heights,belt centers,and structural loading data.Engineering support ensures fitforpurpose integration into greenfield or brownfield projects.

2\. What is the operational impact during installation? For replacement projects,a prefabricated skidmounted design minimizes field assembly time.We develop detailed commissioning plans aimed at reducing integration downtime.

3\. How does this solution address high moisture content? The combination of our tensioned polyurethane panel system—which resists material adhesion—and adjustable vibratory action has proven effective in field tests handling surface moisture up to approximately eight percent.Higher levels may necessitate predrying or heated decks.

4\. What are typical lead times? Lead times vary based on model complexity but generally range between fourteen weeks.For urgent requirements,discuss expedited manufacturing options during quotation.

5\. What commercial terms are available? We offer ExWorks,FOB,and CIF pricing.Standard payment terms involve progress payments tied to manufacturing milestones.Purchase order details will specify exact terms.

6\. Do you provide performance guarantees? Yes.Performance guarantees covering capacity,screening efficiency,and power consumption are provided as part of our technical proposal,based on agreedupon feed material characteristics.

7\. Who handles installation? We offer supervised installation using our certified technicians.This ensures optimal setup according to engineering specifications.We also provide comprehensive operator training as part of most contracts