1. PAINPOINT DRIVEN OPENING

Is your petroleum coke processing operation struggling with inconsistent product quality and excessive maintenance costs? The screening phase for Chinese coke is a critical bottleneck where common failures directly impact profitability. Are you facing:
High Fines Carryover: Ineffective screening allows excessive fines into the finished product, degrading market value and risking customer rejection.
Premature Screen Clogging & Blinding: The abrasive, often moist nature of delayed coke leads to rapid mesh blockage, requiring frequent, costly downtime for manual cleaning or panel replacement.
Excessive Equipment Wear: Standard screen decks and exciters fail under the continuous abrasion of coke particles, leading to unplanned breakdowns and high spare part consumption.
Inconsistent Throughput: Inefficient vibration transmission and poor material flow result in uneven bed depth, limiting capacity and creating a process bottleneck.
High Operational Costs: The cumulative effect of downtime, maintenance labor, part replacements, and energy waste erodes your plant's operational margin.

The central question for plant managers is: how can you achieve precise particle separation for Chinese coke while maximizing uptime and minimizing total cost of ownership?

2. PRODUCT OVERVIEW

The Chinese Coke Vibration Screen Processing Plant is a heavyduty, highamplitude screening system engineered specifically for the dry or slightly moist classification of petroleum coke (petcoke). It is designed to separate green or calcined coke into precise fractions (e.g., lump, nut, chip) at high tonnage rates.

Operational Workflow:
1. Feed Introduction: Raw or crushed coke is uniformly fed onto the robust feed box of the vibration screen.
2. HighIntensity Stratification: A powerful dualvibrator motor system drives a linear or elliptical motion, aggressively stratifying the material bed to bring fines into contact with the screen mesh.
3. Precise Size Separation: Sized fractions pass through designated screen deck apertures (via multiple deck configurations), while oversize material conveys to the discharge end.
4. Efficient Discharge: Separated fractions are discharged via dedicated chutes into distinct collection hoppers or conveyors for downstream processing or storage.

Application Scope & Limitations:
Scope: Ideal for dry screening of green delayed coke and calcined petroleum coke in sizing applications from ~50mm down to ~0.5mm. Suitable for fixed plant installations in refineries, anode plants, and electrode material production facilities.
Limitations: Not designed as a dewatering screen for slurry applications. Optimal performance assumes controlled feed moisture; excessively sticky or wet feed may require predrying or specialized screen surface treatments.

3. CORE FEATURES

HeavyDuty Deck Construction | Technical Basis: Modular, reinforced frame with replaceable wear liners | Operational Benefit: Withstands extreme abrasion from coke particles, extending structural life by over 60% compared to standard designs | ROI Impact: Reduces capital expenditure on full deck replacements, lowering longterm depreciation cost per ton.

AntiBlinding Screen Mesh Systems | Technical Basis: Tensioned polyurethane or rubberclad wire panels with flexible cleaning balls/rings | Operational Benefit: Selfcleaning action prevents aperture blockage from nearsize particles and moisture | ROI Impact: Eliminates 23 hours of daily downtime for manual rodding, increasing annual available production time.

Dual CounterRotating Vibrator Motors | Technical Basis: Synchronized motors generating a linear force vector; lubricatedforlife bearings | Operational Benefit: Delivers consistent, highGforce screening action with minimal maintenance; failure of one motor allows continued reducedcapacity operation | ROI Impact: Cuts vibration drive maintenance costs by up to 40% and provides operational redundancy.

HuckBolted Side Plate Assembly | Technical Basis: Aircraftgrade hightensile fastening system | Operational Benefit: Creates a rigid, monolithic frame that eliminates weld fatigue failures common in highvibration environments | ROI Impact: Virtually eliminates unscheduled downtime from cracked side plates, a common failure point in coke screening.

Variable Frequency Drive (VFD) Control | Technical Basis: Integrated inverter allows precise adjustment of vibrator motor speed (RPM) | Operational Benefit: Operators can finetune amplitude and stroke dynamically to match feed rate and material characteristics (e.g., moisture variance) | ROI Impact: Optimizes efficiency for varying feedstock conditions without mechanical changes, ensuring peak separation efficiency.

Enclosed Dust Containment Design | Technical Basis: Sealed covers with inspection hatches and dust extraction ports | Operational Benefit: Significantly reduces airborne particulate emissions at transfer points, improving plant environmental compliance and worker safety | ROI Impact: Lowers cost associated with dust collection system load and mitigates regulatory noncompliance risks.

4. COMPETITIVE ADVANTAGES

| Performance Metric | Industry Standard Solution | Chinese Coke Vibration Screen Solution | Advantage (% Improvement) |
| : | : | : | : |
| Screen Panel Lifespan (Abrasive Coke) | Standard Steel Wire Mesh 68 Weeks| Reinforced Polyurethane Panels 2024 Weeks| +200% to +250% |
| Screening Efficiency (Fines Removal) ~4mm cut| ~8590% Efficiency| Consistent >95% Efficiency| +5 to +10 percentage points |
| Annual Unscheduled Downtime (Screening Stage)| 120150 hours/year| 16,000 operating hours (L10 life)| +100% |

5. TECHNICAL SPECIFICATIONS

Model Capacity Range: From 50 TPH to over 800 TPH depending on model size and deck configuration.
Screen Deck Configuration: Single, double, or tripledeck options; standard sizes from 1.2m x 3m up to 2.4m x 6m.
Drive System: Two externally mounted vibrator motors; power range from 7.5 kW to 30 kW per motor depending on machine size.
Screen Surface Options: Hightension woven wire cloths; polyurethane modular panels; rubberclad panels; various aperture shapes/sizes.
Construction Materials: Mainframe carbon steel Q235B/Q345B; Wear liners AR400 abrasionresistant steel; Contact parts customizable with stainless steel where required.
Operating Environment Range: Ambient temperature from 20°C to +45°C; designed for dustladen atmospheres up to IP65 protection level on motors.
Physical Dimensions & Weight: Varies significantly by model; largest models may require sectionalized fabrication for site assembly.

6. APPLICATION SCENARIOS

Anode Grade Calcined Coke Production Plant

Challenge: A major electrode manufacturer needed consistent removal of 4mm fines from calcined coke to meet strict anode paste specifications but faced rapid blinding of traditional screens every shift.
Solution: Implementation of a tripledeck Chinese Coke Vibration Screen equipped with nonblinding polyurethane panels on the top two decks and finewire tensioned cloth on the bottom deck.
Results: Screening efficiency for 4mm material stabilized at 96%. Manual cleaning intervals extended from every 8 hours to once per week. This resulted in a quantified increase of 12% in onspec product yield within the first quarter.

Green Delayed Coke Sizing at Refinery

Challenge: A refinery's existing screens suffered from chronic side plate weld fractures due to highcycle fatigue when processing dense green delayed coke lumps (~150mm), causing monthly stoppages.
Solution: Installation of two heavyduty linear motion screens featuring Huckbolted side plate construction and extraheavyduty coil spring isolators.
Results: Field data shows zero structural failures after 18 months of continuous operation. Annual maintenance costs for the screening station decreased by an estimated $65k USD due eliminated repair work and lost production.

7. COMMERCIAL CONSIDERATIONS

Our Chinese Coke Vibration Screens are offered across three primary tiers:

1. Standard Duty Series ($): For lowercapacity requirements (<150 TPH) or less severe duty cycles using proven standard components.
2. HeavyDuty Performance Series ($$): The recommended tier for most petcoke applications featuring all core features listed above as standard (Huckbolts,VFDready drives).
3. Premium Customized Series ($$$): For maximum uptime criticality including full stainless steel contact surfaces advanced condition monitoring sensors integrated spray systems etc

Optional Features include:
Automated lubrication systems
Integrated temperature/vibration sensors
Specialized wear coatings
Custom discharge hoods chutes

Service Packages range from basic commissioning support through comprehensive annual maintenance contracts including guaranteed spare parts availability

Financing Options are available including equipment leasing capital expenditure financing solutions tailored project finance

FAQ

Q1 How do I determine if this screen is compatible with my existing feed conveyor discharge height?
A1 Our technical specifications include detailed dimensional drawings including inlet outlet heights We require your current layout drawings provide integration analysis ensure seamless retrofit

Q2 What is typical installation timeline commissioning process?
A2 For standard models delivery is typically weeks following order Installation commissioning supervised by our engineers usually requires days depending foundation readiness We provide detailed foundation boltloading diagrams advance

Q3 Can this screen handle variations feedstock moisture content?
A3 Yes The combination antiblinding panels variable frequency drive control allows operators adjust performance cope moderate moisture increases However sustained processing sticky wet material outside design parameters will reduce efficiency Predrying recommended such cases

Q4 What are ongoing operational costs expected be?
A4 Primary costs are electricity periodic screen panel replacement energy consumption optimized through efficient drive design Panel lifespan varies based material but our heavyduty designs typically operate months between changes reducing both part cost labor downtime

Q5 Do you offer performance guarantees?
A5 Yes We provide guaranteed capacity throughput based your specific feedstock analysis written guarantee covering screening efficiency key performance metrics as part commercial agreement

Q6 Are spare parts readily available?
A6 We maintain strategic inventory critical wear parts vibrator motors ensure fast dispatch Additionally we provide lifecycle planning recommending optimal spare parts kit minimize your inventory carrying costs while ensuring operational security