1. PAINPOINT DRIVEN OPENING

Is your coke screening operation a source of constant cost and disruption? For plant managers and engineering contractors, the challenges of screening bulk metallurgical coke directly impact throughput, product quality, and maintenance budgets. Common pain points include:
Excessive Downtime: Frequent screen cloth changes due to rapid blinding and abrasion from sharp, hard coke particles halt your entire processing line.
Uncontrolled Fines Generation: Inefficient screening creates excessive 5mm fines, degrading product value and creating handling issues for blast furnace operations.
High Maintenance Costs: The punishing environment leads to premature failure of screen decks, springs, and bearings, driving up spare parts inventories and labor hours.
Inconsistent Product Grading: Inadequate separation results in offspec material, leading to customer rejections or penalties tied to size distribution guarantees.
Energy Inefficiency: Poorly designed vibratory systems consume excess power without delivering proportional screening performance.

Are you seeking a robust solution that reduces total cost of ownership while ensuring consistent grade control? The right industrial coke vibration screen is engineered to address these exact operational challenges.

2. PRODUCT OVERVIEW

A heavyduty coke vibration screen is a highcapacity, linear motion screening machine designed for the scalping and precise size classification of hot or cold metallurgical coke. Its primary function is to separate crushed or processed coke into defined fractions (e.g., +25mm blast furnace coke, 1025mm nut coke, 10mm breeze) with high efficiency and reliability.

Operational Workflow:
1. Feed & Distribution: Bulk coke is fed onto the robust feed box, which evenly distributes material across the full width of the primary screen deck.
2. Size Separation: The dual eccentric shaft vibrator assembly drives the screen box on a linear path. Coke travels over sequentially finer screen cloths (typically wire mesh or polyurethane panels), with undersize material falling through each deck.
3. Discharge & Collection: Correctly sized fractions are discharged from separate discharge spouts into designated chutes or conveyors for stockpiling or further processing.

Application Scope & Limitations:
Scope: Ideal for sinter plants, blast furnace charging systems, and coke handling terminals. Suitable for hot coke screening (with heatresistant components) up to ~200°C and cold screening applications.
Limitations: Not designed for sticky materials without pretreatment. Maximum feed size is constrained by deck aperture and machine design; typically handles feed up to 150200mm.

3. CORE FEATURES

Modular Deck System | Technical Basis: Boltin subframe construction with tensioned panels | Operational Benefit: Reduces screen cloth changeout time by up to 60% compared to direct bolting | ROI Impact: Lowers labor costs and increases plant availability

HeavyDuty Vibrator Assembly | Technical Basis: Forced lubrication system with labyrinth seals on oversized bearings | Operational Benefit: Provides consistent linear motion with minimal heat buildup; extends bearing life in highdust environments | ROI Impact: Reduces unplanned downtime; extends maintenance intervals by 3050%

AbrasionResistant Liners | Technical Basis: Replaceable AR400 steel plates at feed points and wear zones | Operational Benefit: Protects the main screen body from direct impact and abrasion damage | ROI Impact: Eliminates costly repairs to structural components; liner replacement is fast and lowcost

Controlled Vibration Dynamics | Technical Basis: Adjustable counterweight system on eccentric shafts | Operational Benefit: Allows finetuning of stroke and throwing angle for optimal material travel and stratification based on moisture content | ROI Impact: Maximizes screening efficiency (up to 95%+) minimizing misplaced particles

DustContainment Design | Technical Basis: Integrated dust hood flanges and multiple sealing points between decks | Operational Benefit: Contains airborne coke dust at transfer points, improving site environmental compliance | ROI Impact: Reduces housekeeping costs and potential exposure fines

Robust Side Plate Construction | Technical Basis: Finite Element Analysis (FEA)optimized steel plates with continuous welds | Operational Benefit: Withstands high dynamic loads from large lump coke without fatigue cracking over decades of service | ROI Impact: Ensures longterm structural integrity; protects against catastrophic failure

4. COMPETITIVE ADVANTAGES

| Performance Metric | Industry Standard Benchmark | Our Coke Vibration Screen Solution | Documented Advantage |
| : | : | : | : |
| Screen Cloth Lifespan (Primary Deck) | 68 weeks under normal load | 1216 weeks with optimized tensioning & support system| +75% +100% improvement |
| Screening Efficiency (for 5mm removal)| ~8892% efficiency| Consistent >95% efficiency via controlled vibration tuning| ~47% absolute increase in yield |
| Annual Bearing Service Hours| 80120 hours for inspection/repack/replacement| <40 hours due to forced lubrication & sealing design| ~60% reduction in maintenance labor|
| Energy Consumption per Ton Screened| Baseline of 100% (varies by size)| Typically measures at 8590% of baseline via efficient drive design| 1015% reduction in specific energy use|
| Throughput Capacity per m² of Deck Area| Varies by aperture; often limited by blinding| Up to 20% higher capacity maintained via antiblinding measures (e.g., ball trays)| Increased utilization of footprint|

5. TECHNICAL SPECIFICATIONS

Capacity Range: Models available from 200 TPH to over 2,000 TPH capacity.
Screen Decks: Typically 13 decks depending on separation requirements.
Drive Power: Motors from 7.5 kW to 45 kW per vibrator unit (twindrive configurations common), voltage as per client specification (e.g., 415V/50Hz).
Vibration Frequency: Commonly in the range of 7501000 RPM.
Material Specifications:
Main Frame & Side Plates: Q345B Steel
Screen Decks & Subframes: Q235A Steel
Screen Media Options: Highcarbon steel wire mesh, rubberclad mesh, or polyurethane panels
Wear Liners & Chutes: AR400 AbrasionResistant Steel
Springs: Heavyduty steel coil or rubber isolation springs
Physical Dimensions (Example Model): Length range from ~4m to over 9m; Width range from ~1.5m to over 3m; Height varies with configuration.
Environmental Operating Range: Ambient temperature from 20°C to +50°C; Material temperature capability up to +200°C with specified heatresistant components.

6. APPLICATION SCENARIOS

Integrated Steel Plant Sinter Feed Preparation

Challenge A major steel producer faced inconsistent nut coke (25mm+10mm) quality due to fines carryover from their existing screens, affecting sinter strength and BF efficiency.
Solution Installation of a customdesigned twodeck linear motion coke vibration screen with precisely tuned polyurethane panels on the bottom deck for fines removal.
Results Achieved consistent product grading with less than 3% fines in the nut coke fraction. This contributed directly measured improvements in sinter plant yield.

Merchant Coke Producer – Blast Furnace Coke Line

Challenge Excessive downtime for screen maintenance was bottlenecking their final product line before shipment, causing delivery delays.
Solution Replacement of two older screens with new heavyduty units featuring modular deck systems and centralized lubrication points accessible from walkways.
Results Screen media change time reduced from an average of 8 hours per occurrence to under 3 hours. Annual availability increased by approximately 400 hours on that line.

7. COMMERCIAL CONSIDERATIONS

Our approach provides transparent options tailored for capital planning:

Pricing Tiers: Based on machine size/throughput:
Standard Duty (1500 TPH): Customengineered solutions for megacapacity plants/terminals.

Optional Features: Dusttight enclosures full covers), spray systems dust suppression), advanced condition monitoring sensors platforms), special coatings internal surfaces).

Service Packages Available:
1. Basic Warranty Package covers parts defects months).
2 Comprehensive Service Agreement includes annual inspections spare parts discounting priority technical support).
3 Full Maintenance Contract provides scheduled preventative maintenance parts labor fixed annual fee).

Financing Options We work established industrial equipment finance partners offer leasetopurchase operating leases terms align your budget cycles project timelines).

FAQ

Q What information needed ensure your screen compatible my existing layout?
A Provide us feed rate required cut points particle size distribution sketch current arrangement including heights distances between equipment We then model recommend suitable dimensions connection details)

Q How does installation typically handled minimize disruption production?
A Our units designed modular construction facilitate assembly site We provide detailed foundation drawings boltdown specifications supervised commissioning services ensure smooth integration)

Q Can you supply wear parts existing competitor screens?
A Many cases yes We manufacture wide range standard components panels liners adapt fit other major brands Contact us specific make model details confirm compatibility)

Q What typical lead time delivery?
A For standard models within our heavyduty range lead time approximately weeks Custom largecapacity units require Detailed engineering may extend this period We provide firm schedule upon order confirmation)

Q Are performance guarantees offered?
A Yes Our proposals include guaranteed capacity based stated material characteristics guaranteed mechanical performance year against defects materials workmanship)

Q Do you offer onsite training operators maintenance staff?
A Yes Standard commissioning includes operational training Optional comprehensive maintenance training programs available cover inspection procedures troubleshooting component replacement)

Q What aftersales support structure place?
A Support provided regional service engineers direct access technical documentation phone email support network authorized service agents key industrial regions)