1. PAINPOINT DRIVEN OPENING

Is your coke handling operation plagued by persistent bottlenecks, excessive maintenance costs, and inconsistent product quality? For plant managers overseeing coke screening, common challenges directly impact the bottom line:
Blinding & Carryover: Moisture and fine particles blind screen decks, reducing effective screening area and forcing material carryover. This contaminates product grades and creates costly rehandling.
Excessive Downtime & Maintenance: Standard vibrators and bearings fail under continuous heavy loads, leading to unplanned shutdowns. Industry data indicates some operations lose over 15% of available runtime to screen maintenance.
Structural Fatigue & Frame Cracking: The abrasive nature of coke and highcycle vibration induce metal fatigue in inadequately designed frames, resulting in catastrophic failures and expensive structural repairs.
Inefficient Fines Separation: Inconsistent vibration patterns fail to properly separate breeze from nut coke, leaving potential revenue unrealized and causing downstream process issues.

Are you searching for a screening solution engineered to withstand the specific demands of coke classification with higher availability and lower total cost of ownership?

2. PRODUCT OVERVIEW: HeavyDuty Coke Vibration Screen

The HeavyDuty Coke Vibration Screen is a bruteforce linear motion screening machine engineered for the primary sizing, scalping, and dedusting of metallurgical and petroleum coke. Its design prioritizes structural integrity and material stratification to handle hightonnage, abrasive applications.

Operational Workflow:
1. Controlled Feed: Coke is directed onto the robust feed box, which distributes material evenly across the full width of the primary screen deck.
2. HighEnergy Stratification: A dualshaft, synchronized vibrator assembly generates a linear throwing motion. This action aggressively stratifies the material bed, forcing fines downward for rapid separation.
3. Precise Sizing: Sized fractions pass through defined deck apertures (typically wire mesh or polyurethane panels). Oversize material travels over the deck surface to a designated discharge spout.
4. Protected Discharge: Sized fractions are discharged through sealed discharge spouts designed to minimize dust emission and spillage.

Application Scope & Limitations:
Scope: Ideal for primary screening of hot or cold coke (nut coke, breeze) in coke plants, steel mills, and anode production facilities. Capable of handling feed sizes typically from 080mm.
Limitations: Not designed as a replacement for finewet screening or dewatering applications. Maximum efficiency is achieved with controlled feed rates as per designed capacity.

3. CORE FEATURES

Modular Deck System | Technical Basis: Boltin panel design with side tensioning | Operational Benefit: Panels can be replaced individually in under 30 minutes without welding or specialized tools. | ROI Impact: Reduces deck change downtime by up to 70%, increasing annual throughput.

DualShaft Synchronized Vibrator | Technical Basis: Two contrarotating eccentric shafts generate a true linear motion | Operational Benefit: Provides consistent material travel speed and optimal stratification force, preventing plugging and improving separation accuracy. | ROI Impact: Improves screening efficiency by 1015%, yielding more onspec product per ton processed.

Ruggedized Frame Construction | Technical Basis: Finite Element Analysis (FEA)optimized steel frame with reinforced cross members | Operational Benefit: Eliminates stress points prone to cracking under highcycle loading from abrasive coke. | ROI Impact: Extends structural service life by an estimated 300%, avoiding sixfigure replacement costs.

Advanced Bearing & Lubrication System | Technical Basis: Largediameter spherical roller bearings with automated greasing ports | Operational Benefit: Bearings are sized for L10 life exceeding 60,000 hours under rated load; centralized lubrication ensures proper fill without overgreasing.| ROI Impact: Eliminates ~90% of bearingrelated failures, directly reducing maintenance labor and parts inventory costs.

DustTight Body Design | Technical Basis: Continuous perimeter sealing between side plates and decks, plus sealed discharge skirts | Operational Benefit: Significantly contains airborne coke dust at transfer points, supporting plant health and safety compliance.| ROI Impact: Lowers housekeeping costs and reduces exposure to regulatory fines.

4. COMPETITIVE ADVANTAGES

| Performance Metric | Industry Standard | HeavyDuty Coke Vibration Screen Solution | Advantage (% improvement) |
| : | : | : | : |
| Structural Life Expectancy | 35 years before major repair/weldment required| 10+ years based on FEA validation & field data| +100% to +200% |
| Screening Efficiency (for target size)~8588% typical| Consistent 9295% efficiency measured| +5% to +8% more target product |
| Annual Maintenance Downtime| 120180 hours/year for bearing/deck changes| 60,000 hours with optimized system| +50% extended life |
| Energy Consumption per Ton Screened (kWh/t)| Baseline (1.0) measured across older units| 0.85 Achieved via efficient drive design & mass optimization| 15% reduction |

5. TECHNICAL SPECIFICATIONS

Model Range & Capacity: Available in widths from 1.2m to 3.0m; lengths from 4.8m to 7.2m. Capacities range from 150 TPH to over 1,200 TPH depending on aperture size and material characteristics.
Power Requirements: Drive motor ratings from 11 kW to 45 kW, standard IP66 protection, 400V/50Hz or as specified.
Vibration Mechanism: Dual shaft vibrator assembly with SKF/FAG class spherical roller bearings.Vibration Frequency: Adjustable between 8001000 RPM. Stroke range: 812mm.
Material Specifications: Main frame constructed from S355JR grade steel.Deck Support Beams: wearresistant AR400 steel liners.Screen Decks: Highcarbon steel wire mesh or tensioned polyurethane panels (optional).
Physical Dimensions (Sample Model HDVS2448): Overall length: ~6.5m; Width: ~2.6m; Height (to top of deck): ~1.8m; Weight: ~12,500 kg.
Environmental Operating Range: Ambient temperature range: 20°C to +50°C.Feed Material Temperature: Capable of handling hot coke up to 150°C with specific deck material selection.

6 APPLICATION SCENARIOS

[Steel Mill Blast Furnace Feed] Challenge: A major integrated steel mill experienced frequent blinding on its primary coke screens due to moisture variation.This caused nut coke contamination with fines,breeze carryover,and required biweekly manual deck cleaning,sidelineing the screen for8hours each time.| Solution: Installation of two(2)heavyduty linear motion screens featuring polyurethane antiblinding decksandhighenergy vibrationfor improved stratification.| Results: Blinding incidents reduced by over90%.Deck cleaning intervals extendedto quarterly preventive maintenance.Screening efficiencyfor nut cokerosefrom86%to94%,providing a cleaner blast furnace feed andreducing breeze rehandling costsby an estimated$85，000 annually.

[Petroleum Coke Calcining Plant] Challenge: A calciner neededto classify large volumesof greenandcalcined petcoke into multiple fractions but faced severe frame crackingon existing equipment every1824months，leadingto costly rebuildsandsafety concerns.| Solution: Replacementwitha customwidth heavyduty vibration screen featuringan FEAoptimized，reinforced frame structureandisolated vibrator mounting.| Results: After36months of continuous operation，no evidenceof structural fatigueor crackinghas been observed.The plant has avoidedan estimated$250，000in anticipated rebuild costsandsecured uninterrupted production through critical demand periods.

7 COMMERCIAL CONSIDERATIONS

Equipment pricing is tiered based on machine size，configuration,and selected options:
Tier1(Standard Duty):For lowercapacity(<400TPH)or intermittent duty applications.Basic features included.
Tier2(Heavy Duty):The core model range as specified above，designedfor24/7operation.Includes modular decksandcentralized lube points.
Tier3(Extra Heavy Duty):For extremeabrasionor elevated temperature applications.Includes upgraded materials(AR liners throughout)，hightemp bearings,and premium sealing packages.

Optional Features include:
Dust encapsulation covers
Variable frequency drives(VFDs)for stroke adjustment
Condition monitoring sensors(vibration,temperature)
Specialized screen deck media(wedge wire,rubber)

Service Packages are available:
1.Preventive Maintenance Inspections
2.Parts Kitting Programfor guaranteed availabilityof wear components
3.Onsite technical trainingfor your maintenance crew

Financing options including leasetoown agreementsandextended payment termscan be structuredto alignwith capital expenditure budgets.

8 FAQ

Q:What if my existing feed chuteandsupport structure are designed fora different screen footprint?
A：Our engineering team provides comprehensive interface drawings during the quotation phase.Modification kitsorsimple adapter plates can often be suppliedto facilitate integration into your current layout，minimizing civil work costs.

Q：How does this screen handle variationsin feed rate?
A：The linear motion design provides consistent conveying velocity evenwith fluctuating loads.For significant variations（>±25%)，we recommendthe optional VFD package.This allows operatorsto adjust vibration intensityin realtimeto optimize stratificationunder varying conditions.

Q：What isthe expected lifespanof the wear components?
A：Under normal operating conditionswith properfeed distribution：deck panels last618months dependingon aperture sizeandmaterial；wear linerson feedboxandsides last1224months；vibrator bearingsare ratedfor L10life exceeding60，000hours（~7years).Actual life will varybasedon specific material abrasiveness.

Q：Can this screen provider multiple product fractions?
A：Yes.Most modelsare configuredwith twoorthree deck levels.Each deck can have different aperture sizes allowingforthe separationof oversize,nutsize,andbreeze（fines）in one machine.Discharge spoutsare segregatedforeach fraction.

Q：What commercial termsare typical?
A：Standard termsare exworks pricingwith delivery lead timesof1416weeksupon order confirmation.FOB port optionsare available for international clients.Payment typically involvesa deposit upon order,a progress payment,andbalance priorto shipment.We provide detailed commercial proposals outlining all terms clearly

Q：Do you offer performance guarantees？
A：Yes.We provide mechanical performance guaranteescovering workmanshipandmaterial defects.Furthermore，we can offer process performance guarantees（e.g.,capacityandscreening efficiency）basedon a mutually agreedupon setoffeed material characteristicsprovidedbythe client duringthe engineering phase