1. PAINPOINT DRIVEN OPENING

Is your coke handling operation plagued by persistent bottlenecks, excessive fines generation, and unplanned maintenance stops? Inefficient screening directly impacts your bottom line through lost product, increased energy consumption for downstream processes, and costly downtime. Are you currently facing:

High Fines Carryover: Ineffective separation allows valuable coke breeze to contaminate product grades or overload crushers, reducing saleable tonnage and increasing processing costs.
Blinding & Premature Wear: Sticky coke particles and abrasive fines rapidly blind screen decks and degrade components, forcing frequent shutdowns for cleaning and replacement.
Inconsistent Throughput & Product Quality: An unstable or underpowered vibration screen creates uneven feed distribution and poor stratification, leading to variable sizing and unreliable process control.
Excessive Structural Stress & Failure: Improperly balanced vibratory forces transmit damaging stress to the support structure and building, risking catastrophic failure and extended production halts.
High Operational Costs: Constant maintenance, high power draw for minimal output, and short component lifecycles erode profit margins on every ton processed.

The central question for plant managers is this: how can you achieve consistent, highcapacity coke classification while maximizing equipment uptime and minimizing total cost of ownership?

2. PRODUCT OVERVIEW

The HeavyDuty Coke Vibration Screen is a highcapacity, linear motion screening machine engineered for the rigorous dry classification of metallurgical coke. It separates crushed coke into precise size fractions (e.g., blast furnace coke, nut coke, breeze) critical for downstream metallurgical processes.

Operational Workflow:
1. Controlled Feed: Crushed coke is uniformly distributed across the full width of the screen via an integrated feed box or correctly sized external feeder.
2. Efficient Stratification: HighGforce linear vibration rapidly stratifies material, forcing fines downward to the screen deck surface while larger particles travel across the top layer.
3. Precise Separation: Sized particles pass through precisely calibrated screen apertures (typically wire mesh or polyurethane panels) onto designated product chutes.
4. Discharge & Conveyance: Correctly sized fractions are discharged from separate discharge lips onto conveyors or into bins for storage or transport.

Application Scope: Primary sizing of crushed metallurgical coke in steel plants, coke oven facilities, and standalone screening plants. Ideal for capacities from 200 to over 2000 TPH.

Limitations: Not designed for wet screening applications or for materials with extreme temperature variations without specific design considerations. Maximum lump size is constrained by feed chute and deck opening design.

3. CORE FEATURES

Modular Deck System | Technical Basis: Boltin panel design with side tensioning rails | Operational Benefit: Panels can be replaced individually in under 30 minutes without dismantling adjacent decks or feed boxes. | ROI Impact: Reduces deck change downtime by up to 70%, increasing annual available production time.

Dual CounterRotating Exciter Drive | Technical Basis: Two synchronized eccentric shafts generating a linear throwing motion | Operational Benefit: Provides a consistent, fully reversible material travel speed with adjustable stroke/amplitude for optimal stratification. | ROI Impact: Delivers up to 25% greater throughput per deck area compared to circular motion units, optimizing footprint.

AbrasionResistant Lining Package | Technical Basis: Hardox or equivalent wear steel on all contact surfaces in feed zone and side plates | Operational Benefit: Protects structural integrity from abrasive coke fines, extending time between major refurbishments. | ROI Impact: Documented service life increase of 23x on critical wear areas versus mild steel, lowering lifetime capital costs.

Advanced AntiBlinding Systems | Technical Basis: Multiple options including ball tray decks, air burst cleaners, or flexible polyurethane panels with selfcleaning apertures | Operational Benefit: Maintains nearoriginal open screen area by preventing particle adhesion and plugging. | ROI Impact: Sustains design capacity and product consistency; field data shows a 4060% reduction in manual cleaning interventions.

Rugged Box Frame Construction | Technical Basis: Finite Element Analysis (FEA) optimized steel frame with reinforced cross members | Operational Benefit: Withstands high dynamic loads without resonant fatigue cracking; provides stable mounting surface for decks. | ROI Impact: Eliminates structural failures that cause weeks of downtime; supports higher Gforces for improved efficiency.

Environmental Sealing & Dust Containment| Technical Basis:Labyrinth seals combined with multiple dust extraction ports| Operational Benefit:Contains airborne coke dust at transfer points, improving site safety and environmental compliance.| ROI Impact: Reduces housekeeping labor and mitigates risk of regulatory noncompliance fines.

4. COMPETITIVE ADVANTAGES

| Performance Metric | Industry Standard | Coke Vibration Screen Solution | Advantage (% improvement) |
| : | : | : | : |
| Screening Efficiency (Tonnage/Deck m²) | ~80100 TPH/m² (varies by size) | 120140 TPH/m² (verified field data) | +2540% Higher Capacity |
| Panel ChangeOut Time (Full Deck) | 812 Hours (welded/wedge system) | 30,000 hours (sealed/lubricated) |>50% Extended Service Life |
| Structural Integrity Warranty| Typically 1 year on welds/frame|5 years on main frame against fatigue cracks|400% Longer Warranty Term|
| Power Consumption per Ton Handled| Baseline = 100% (older models)|Approximately 8590% of baseline|10 to 15% Energy Efficiency|

5. TECHNICAL SPECIFICATIONS

Capacity Range: Configurable from 200 to over 2，200 metric tons per hour， depending on deck configuration， aperture size，and material characteristics.
Screen Deck Configuration: Single， double，or triple deck layouts available.Decks typically utilize woven wire mesh(10mm 80mm)，polyurethane panels，or hybrid systems.
Drive Unit： Dual shaft exciter driven by twin vibration motors or a single motor with gear coupling.Power range：7。5 kW to45 kW per drive unit.Stroke adjustable from8mmto12mm。
Construction Materials：
Main Frame： Heavyduty rolled steel sections
Deck Frames & Wear Liners： Abrasionresistant steel(AR400/Hardox)
Side Plates： Mild steel with replaceable liners
Physical Dimensions： Varies by model。Example(2deck unit)：Length~6。5m，Width~3。0m，Height~2。8m。Weight approximately12，000 kg。
Operating Environment：
Ambient Temperature Range： 20°Cto+40°C
Dust Protection Rating： IP65for drive motors
Feed Material Temperature： Up to80°C continuous(special seals required above)

6． APPLICATION SCENARIOS

[Integrated Steel Plant]｜Challenge:A blast furnace operation experienced inconsistent nutcoke(1525mm)sizing due to rapid blinding of existing screens.This ledto irregular burden permeabilityand increased fuel rate.Solution:A tripledeck Coke Vibration Screen was installed featuring polyurethane antiblinding panelson the top two decksand awiremesh bottomdeckforfinesremoval。Results:Screening efficiencyfor the target fraction improvedfrom78%to94%。Manual cleaningstops were eliminated,andthe plant reporteda1。5% reductionin specific fuel rateattributedtomore stableburden distribution。

[Merchant Coke Producer]｜Challenge:The client neededto increase overallplant throughputbutwas constrainedbythe footprintof their existing screening tower.The old screens could not handlehighercapacitieswithout excessive particle degradation.Solution:AhighGforce linear motionCoke Vibration Screenwitha compactdesign butlarger effective screeningareawas installedin a retrofitproject。Results:The new unit achieveda22%higher throughput(850TPHvs。695TPH)withinthe same structuralbay.Fines generation(5mm)fellbyan averageof3percentage points,increasing saleableproduct yield。

7． COMMERCIAL CONSIDERATIONS

Equipment pricing is tiered basedon capacityandconfiguration：
Tier1(Standard Duty):Up to500TPH,singleordouble deck,mildsteelwear parts.Idealfor lowercapacityorreplacementin kindapplications。
Tier2(Heavy Duty):5001200TPH,doublestripledeckfullabrasionresistantlinersandmodulardeck systems.Themostcommonselectionfor greenfieldandmajorupgrades。
Tier3(Ultra High Capacity):1200TPH+,customizeddecklayouts，premiumdrivecomponents,andfullancillary packages。

Optional featuresinclude：
Automatedlubrication systems
Conditionmonitoring sensors(vibration,temperature)
Specializeddust hoodsandconnection flanges
Variablefrequency drivesfor stroke/speed adjustment

Service packagesare offeredasannualmaintenance contractscoveringinspections,lubricant supply,andpriority partsdiscounts.Financing optionsincludingoperational leasingandequipment rentalare availableto spreadcapital expenditureor facilitate shorttermproject needs。

8． FAQ

Q1： Is this Coke Vibration Screen compatiblewith our existingfeed conveyorsandchutework？
A1： Yes.The equipmentis engineeredtostandard bulk material handlingdimensions.Feedbox heightandinlet/outletflange positionscanbe customizedatthe ordertostage tomatchyour currentlayout。

Q2： Whatisthe expectedimpactonour operationalpowerconsumption？
A2： Field datasuggestsmodernhighefficiencydrivescoupledwithoptimizedmass balancecanreduceenergyuseper tonprocessedby1015%comparedtounits over15yearsold。

Q3： Howdoesthe modulardeck systemaffectour sparepartsinventory costs？
A4 ： It significantlyreduces them.You need only stock individualpanel modulesratherthancomplete weldeddeck assemblies.Inventory valueands pacerequiredcan bereducedbyan estimated60%。

Q4 ： Whatarethe commercialtermsregardingdeliveryandwarranty？
A4 ： Standard deliveryisFOB manufacturingplant.Warranty coversdefectsin materialsandworkmanshipfor12monthsfromcommissioning，withthe5yearstructuralwarrantyonthe mainframe as noted。

Q5 ： Canthis screenseparatecoke at elevatedtemperatures？
A5 ： Standard units are ratedformaterial upto80°C.Forhotcokescreeningdirectlyfromovens(significantlyhighertemperatures)，aspecializeddesignwithheat shields，expandedmetal decks,andhightemperaturebearings/sealsis required。

Q6 ： Whatlevelof foundation preparationisrequired？
A6 ： A substantialreinforcedconcretefoundationis necessarytosupportthedynamicloads.Detailedfoundationdrawingsincludingallloadingdataareprovidedforengineeringintoyour civil design。

Q7 ： Do youprovideonsiteinstallation supervision？
A7 ： Yes.Certifiedfield engineerscanbe providedonafee basistosuperviseerection，mechanicalalignment,andinitialstartuptoensureoptimalperformancefromcommissioning