1. OUVERTURE ENTRAÎNÉE PAR POINT DE DOULEUR

Is your coke handling operation plagued by persistent bottlenecks and escalating costs? The screening phase is often a critical failure point, directly impacting downstream quality and overall plant throughput. Les défis courants incluent:

Aveuglant & Reporter: Moisture and fine coke particles adhere to screen decks, blinding apertures and forcing material to carry over into the wrong product stream. This results in offspec product, increased recrushing loads, et perte de revenus.
Temps d'arrêt excessif pour la maintenance: Traditional screens with complex drive mechanisms or fragile tensioning systems require frequent, lengthy shutdowns for deck changes, bearing replacements, or structural repairs.
Consommation d'énergie élevée & Structural Stress: Inefficient vibration transmission and unbalanced forces lead to wasted energy and transfer damaging vibrations to the support structure, accelerating wear on the entire system.
Inconsistent Sizing: Inadequate screening efficiency causes undersized material to contaminate the sized coke product or valuable sized coke to be incorrectly diverted as fines, compromising product integrity and customer specifications.

Are you searching for a robust coke vibration screen engineered to maximize uptime, ensure precise separation, and reduce your total cost of ownership?

2. APERÇU DU PRODUIT

The HeavyDuty Coke Vibration Screen is a linear motion vibrating screen specifically engineered for the rigorous sizing and scalping of metallurgical and petroleum coke. Its design focuses on reliability in highabrasion, highcapacity environments typical in coke handling plants.

Flux de travail opérationnel:
1. Feed material from a conveyor is evenly distributed across the full width of the screen's inlet.
2. A synchronized dualshaft vibrator assembly generates a linear throwing motion, propelling coke particles along the screen deck.
3. Particles smaller than the deck aperture size stratify and pass through (sous-dimensionné), while larger particles travel across the deck to the discharge end (surdimensionné).
4. Separated streams are collected in distinct hoppers or onto separate conveyors for further processing or shipment.

Champ d'application: Primary sizing (par ex., separating +50mm from 50mm), scalpandscreen operations ahead of crushers, dedusting (removal of 3mm fines), and drainandrinse screen applications.

Limites: Not designed for sticky materials without specialized deck treatments. Maximum feed size is limited by deck impact resistance; lump sizes exceeding 300mm typically require a grizzly scalper stage ahead of the screen.

3. CARACTÉRISTIQUES PRINCIPALES

Système de terrasse modulaire | Base technique: Independent, boltin panel construction with polyurethane or rubber media | Avantage opérationnel: Panels can be replaced individually during scheduled maintenance without removing entire deck frames, reducing changeout time by up to 60%. | Impact sur le retour sur investissement: Cuts labor costs for deck maintenance and significantly shortens downtime windows.

DualShaft Synchronized Vibrator | Base technique: Two counterrotating shafts with precisionmatched eccentric weights generate a pure linear force | Avantage opérationnel: Provides consistent material travel velocity and stratification with minimal vertical motion, enhancing screening accuracy. The enclosed oilbath lubrication ensures reliable operation. | Impact sur le retour sur investissement: Improved product yield accuracy reduces giveaway and reclaims lost revenue from missized material.

SubResonant Spring Support System | Base technique: Lownaturalfrequency coil springs isolate up to 95% of dynamic forces | Avantage opérationnel: Dramatically reduces transmitted vibrations to the supporting structure, eliminating fatigue damage to feed and discharge chutes as well as the building steelwork. | Impact sur le retour sur investissement: Lowers longterm structural maintenance costs and allows installation on elevated structures without costly reinforcement.

Technologie de pont anti-aveuglement | Base technique: Polyurethane or rubber screen panels with tapered apertures and optional balltray or airblast cleaning systems | Avantage opérationnel: Prevents pegging and blinding by allowing particles to dislodge easily, maintaining consistent open screening area throughout operation. | Impact sur le retour sur investissement: Sustains design capacity and screening efficiency over longer periods, preventing throughput drops that delay order fulfillment.

Robust Sideplate & Crossmember Construction | Base technique: Analyse par éléments finis (FEA) optimized steel fabrications with continuous welds at highstress points | Avantage opérationnel: Withstands continuous impact from abrasive coke feed without cracking or deformation over a multiyear service life. | Impact sur le retour sur investissement: Eliminates unscheduled downtime due to structural failure and defers major capital expenditure on body replacements.

4. AVANTAGES CONCURRENTIELS

| Mesure de performances | Norme de l'industrie (Typical Linear Screen) | Notre solution de tamis vibrant pour coke | Avantage (% Amélioration) |
| : | : | : | : |
| Efficacité du dépistage (for 6mm separation) | 8590% under optimal conditions | Réalise systématiquement 9296% efficiency in field tests| +58% more product in spec |
| Deck Panel Replacement Time (Full Deck) | 812 hours with crew of 34 | 35 hours with crew of 23 using modular system| ~60% faster changeover |
| Annual Bearing Service Life (Vibrator) | 1218 months in harsh service| Les tests industriels démontrent 2430 month average life| +50% intervalle d'entretien plus long |
| Transmitted Dynamic Force to Structure| Haut; requires reinforced support| Isolated by subresonant spring system| Reduction of up to 95% |
| Power Consumption per Ton Handled| Référence (100%)| Optimized massandforce balance reduces draw by ~15%| ~15% lower energy cost |

5. SPÉCIFICATIONS TECHNIQUES

Plage de capacité: Modèles disponibles chez 500 MTPH to 2,500 MTPH based on material density (~0.8 t/m³ for coke) and separation size.
Plateformes d'écran: Single or double deck configurations. Largeurs standards de 1,5m à 3m; lengths from 4m to 8m.
Drive Unit: Dualshaft vibrator with IP66rated motors. Total installed power range: 15 kW – 45 kW depending on model size.
Deck Media Options: Hightensile woven wire mesh (standard), panneaux modulaires en polyuréthane (highwear areas), rubber panels (noise reduction).
Matériaux de construction: Cadre principal & sideplates: ASTM A36 steel with abrasionresistant liners at feed point. Fasteners are stainless steel or hotdip galvanized.
Environnement opérationnel: Conçu pour des températures ambiantes de 20°C à +50°C. Dusttight enclosures available for motor drives.

6. SCÉNARIOS D'APPLICATION

[Integrated Steel Mill – Sinter Plant Feed] Défi: A major mill experienced rapid blinding on wire mesh decks when screening wet coke breeze (6mm) for sinter feed, causing hourly capacity drops of over 20%. Frequent manual cleaning posed safety risks.

[Solution] Implementation of a doubledeck Coke Vibration Screen fitted with antiblinding polyurethane panels on both decks and an integrated airblast cleaning system.

[Résultats] Screening efficiency stabilized at 94%. Capacity returned consistently to design rate of 180 MTPH. Manual cleaning interventions were eliminated, enhancing operator safety.

[Petroleum Coke Calcining Plant – Product Sizing] Défi: The plant needed precise separation of calcined petroleum coke into three fractions (+25mm morceau, 25/+8mm nut, 8mm d'amende). Their existing screens produced excessive amounts of "nearsize" material contaminating each fraction.

[Solution] A tripledeck Coke Vibration Screen was installed with precisely calibrated vibrator stroke & speed for multifraction separation.

[Résultats] Product purity improved significantly: contamination between fractions reduced by over 75%. This allowed the plant to meet tighter customer specifications for anodegrade coke command premium pricing.

7 CONSIDÉRATIONS COMMERCIALES

Our Coke Vibration Screens are offered in three primary tiers:

1. Série de service standard: For capacities up to ~800 MTPH; ideal for smaller plants or less severe duty cycles.
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