1. PAINPOINT DRIVEN OPENING

Are your coke screening operations plagued by persistent inefficiencies that erode profitability? For plant managers and engineering contractors, the challenges of screening bulk coke are familiar yet costly. Excessive fines generation due to aggressive vibration directly impacts product yield and revenue. Frequent screen cloth changes, driven by premature wear from abrasive coke, result in significant downtime and high consumable costs. Inconsistent particle size distribution can lead to downstream process issues in blast furnaces or foundries, affecting overall plant efficiency. Moreover, structural failures in the screen body or deck from highcycle fatigue lead to unplanned maintenance events and safety concerns. Are you managing vibration isolation problems that transfer stress to support structures, creating longterm integrity issues? The cumulative effect is measurable: reduced throughput, elevated maintenance budgets, and compromised product quality.

2. PRODUCT OVERVIEW

The OEM Coke Vibration Screen is a heavyduty, linear or elliptical motion vibrating screen engineered specifically for the sizing, scalping, and dedusting of metallurgical and foundry coke. Its design prioritizes durability and precise material stratification under highabrasion conditions.

Operational Workflow:
1. Feed & Distribution: Bulk coke is fed onto the robust feed box, which evenly distributes material across the full width of the top deck.
2. Stratification & Sizing: Controlled vibratory motion stratifies material by size; larger particles convey along the deck while smaller fractions pass through accurately sized screen apertures.
3. Product Separation: Multiple deck configurations allow for the precise separation of multiple product streams (e.g., nut coke, breeze).
4. Discharge: Sized fractions are discharged into separate chutes for downstream processing or shipment.

Application Scope: Primary sizing of runofoven coke, removal of coke breeze (fines), scalping of oversized material, and dedusting applications in coke handling plants, steel mills, and foundries.

Limitations: Not designed for wet screening or sticky materials. Maximum capacity and separation efficiency are subject to specific moisture content, feed gradation, and desired cut points.

3. CORE FEATURES

Modular Deck System | Technical Basis: Boltin panel design with highcarbon steel or polyurethane media | Operational Benefit: Enables rapid replacement of individual screen panels versus full deck overhaul | ROI Impact: Reduces screen cloth change downtime by up to 60%, lowering labor costs and increasing availability.
Optimized Vibration Mechanism | Technical Basis: Precisionbalanced eccentric shafts with forced lubrication | Operational Benefit: Delivers consistent, linear motion for accurate material conveyance without plugging | ROI Impact: Improves screening efficiency by 1015%, enhancing product yield and reducing recirculation load.
HeavyDuty Frame Construction | Technical Basis: Finite Element Analysis (FEA)optimized steel frame with reinforced cross members | Operational Benefit: Eliminates resonant fatigue cracking and withstands dynamic loads from abrasive coke | ROI Impact: Extends structural service life by an estimated 40%, preventing catastrophic failure and associated capital expense.
Advanced Isolation System | Technical Basis: Multirate coil spring or rubber shear mount assemblies | Operational Benefit: Isolates up to 95% of dynamic forces from the supporting structure | ROI Impact: Protects building integrity, eliminates secondary vibration damage, and reduces structural maintenance costs.
Centralized Greasing Points | Technical Basis: Labyrinthsealed bearing housings with accessible lubrication ports | Operational Benefit: Allows for safe, routine bearing maintenance without disassembly during scheduled stops | ROI Impact: Prolongs critical bearing life by over 30%, preventing unplanned stoppages due to bearing seizure.

4. COMPETITIVE ADVANTAGES

| Performance Metric | Industry Standard | OEM Coke Vibration Screen Solution | Advantage (% improvement) |
| : | : | : | : |
| Screen Cloth Life (Abrasive Coke) | 46 Weeks | 812 Weeks | +80% to +100% |
| Screening Efficiency (Size Accuracy) | ~85% Efficiency | 9295% Efficiency| +8% to +10% |
| Annual Downtime for Maintenance| 120150 Hours/Year| 7090 Hours/Year| 40% to 45% |
| Energy Consumption per Ton Screened| Baseline (100%)| Approximately 90% of Baseline| 10% Efficiency Gain |
| Transmitted Force to Support Structure| High Vibration Transfer >25% Force Transmitted|<15% Force Transmitted |40% Reduction |

5. TECHNICAL SPECIFICATIONS

Capacity & Rating: Designed for throughputs from 200 to 2,500 metric tons per hour (MTPH), depending on model size and aperture selection.
Power Requirements: Driven by dual vibrating motors ranging from 7.5 kW to 55 kW each (400V/50Hz or as specified). Total installed power varies with machine size.
Material Specifications:
Deck Frames & Side Plates: Abrasionresistant steel plate (min. AR400).
Screen Decks: Modular panels compatible with tensioned wire cloth, polyurethane panels, or rubber media.
Beam Protectors & Feed Liners: Replaceable AR450/500 steel or polyurethane.
Physical Dimensions: Widths from 1.2m to 3.6m; lengths from 4.8m to 10m; installation height dependent on slope angle (typically 1525 degrees).
Environmental Operating Range: Designed for ambient temperatures from 20°C to +45°C; dusttight enclosures available for electrical components; weather protection covers optional.

6. APPLICATION SCENARIOS

Integrated Steel Plant – Blast Furnace Feed Preparation

Challenge: A major steel producer faced inconsistent nut coke size (1025mm) fed to the blast furnace due to rapid cloth wear on existing screens. Fines (<10mm) contamination exceeded tolerances, affecting furnace permeability and increasing fuel rate.
Solution: Implementation of a twodeck OEM Coke Vibration Screen featuring polyurethane panel decks on both levels for extended wear life in the critical sizing stage.
Results: Screen panel life increased from an average of 35 days to over 75 days. Nut coke product consistency improved significantly; fines content was maintained below target threshold (<5%). Annual savings were realized through reduced cloth inventory ($18k) and lower downtime ($45k estimated production value).

Coke Calcining Plant – Breeze Removal

Challenge: A calcining plant needed reliable removal of fine coke breeze (<3mm) after crushing but experienced frequent screen blinding with traditional equipment, requiring daily manual cleaning stops.
Solution: Installation of a linear motion OEM Coke Vibration Screen equipped with a specialized ball tray antiblinding system on the fineaperture bottom deck.
Results: Blinding incidents were eliminated entirely between monthly maintenance stops Throughput stability improved by approximately18%. The plant achieved its target product purity without manual intervention.

7 COMMERCIAL CONSIDERATIONS

Our OEM Coke Vibration Screens are offered in three primary tiers:

1.Standard Duty Series: For lowercapacity (<800 MTPH) applications with standard AR400 liners tensioned wire cloth decks ideal for replacement in existing circuits

2.HeavyDuty Series: Our most common specification featuring modular polyurethane/AR450 decks FEAoptimized frames centralised lube points Recommended for new installations major upgrades

3.SevereDuty Series: Includes full polyurethane lining on internal surfaces premium isolation mounts premium abrasionresistant materials For maximum availability in24/7 highabrasion environments

Optional features include dust enclosures variable frequency drives(VFDs)for stroke adjustment remote monitoring sensors spray systems

We offer comprehensive service packages:
• Commissioning Supervision
• Planned Maintenance Contracts
• Onsite Inventory Consignment Kits(for wear parts)
• Technical Training For Operations Maintenance Teams

Financing options include capital purchase lease agreements(operating/capital)and retrofit financing programs tailored capex cycles

FAQ

Q1 Are your screens compatible with our existing foundation supports chute work?
Our engineering team can adapt designs match existing interfaces We require dimensional drawings load specifications ensure proper fit integration

Q2 What typical operational impact installing new screen?
Field data shows ramp stable operation within48 hours commissioning Most clients report measurable improvement product quality throughput within first week Minimal operator retraining required due intuitive design

Q3 How does pricing structure work?
Pricing determined primarily by screen width deck configuration material specifications We provide firm quotations based detailed application data(capacity feed size distribution desired products)

Q4 What warranty provided?
We offer24month warranty structural components12 months wearable parts(vibrator motors bearings) subject proper installation adherence maintenance schedules Warranty terms outlined final contract

Q5 Can we retrofit our current vibrating frame your new technology?
Yes we provide retrofit solutions where substructure sound This includes new vibration mechanism decks isolation system often represents costeffective upgrade path

Q6 What lead time delivery?
Lead times vary specification complexity Standard HeavyDuty models typically available within1418 weeks Acknowledged order Confirmed timelines provided quotation stage

Q7 Do you provide performance guarantees?
Yes we offer guaranteed capacity screening efficiency based mutually agreed test criteria using standardised laboratory methods simulate conditions Guarantees formalised project contract