1. PAINPOINT DRIVEN OPENING

Is your coke handling operation plagued by inconsistent product quality, excessive fines generation, and unplanned maintenance stops? Inefficient screening directly impacts your bottom line through lost product yield, increased downstream equipment wear, and costly process interruptions. Are you currently facing:

Product Contamination: Inadequate separation of breeze from furnacegrade coke, leading to customer rejections or penalties for offspec material.
Excessive Downtime: Frequent screen deck changes and bearing failures on vibrating screens due to the abrasive nature of hot coke, halting your entire processing line.
High Operational Costs: Premature wear of screen cloths and components from impact and abrasion, coupled with high energy consumption from inefficient vibratory motion.
Dust and Emission Challenges: Poorly sealed or inefficient screening contributing to fugitive dust, creating environmental and housekeeping issues.

The right industrial vibrating screen is not just a piece of equipment; it's a critical process gatekeeper for profitability. How do you ensure maximum throughput of onspec coke while minimizing lifecycle costs?

2. PRODUCT OVERVIEW: HeavyDuty Coke Vibrating Screen

This equipment is a highcapacity, linear motion vibrating screen engineered specifically for the scalping, sizing, and dedusting of metallurgical coke and coke breeze in harsh operating environments. Its design prioritizes durability, separation accuracy, and minimal maintenance.

Operational Workflow:
1. Feed & Distribution: Hot or cooled coke is uniformly fed onto the robust feed box, distributing material across the full width of the top deck.
2. Stratified Separation: The dualmass vibratory system drives a linear motion, stratifying material by size. Larger furnacegrade coke moves across the upper deck(s), while smaller fractions pass through to lower decks or collection chutes.
3. Sized Product Discharge: Precisely sized fractions are discharged from designated discharge spouts—oversize (e.g., +50mm), product (e.g., 2550mm), and breeze (e.g., 25mm)—for routing to blast furnaces or other processes.

Application Scope: Primary and secondary screening of metallurgical coke at coke plants, steel mills, and transfer stations. Suitable for hot or cold feed conditions.

Limitations: Not designed for sticky or highly moist materials without specialized deck treatments. Maximum feed temperature must be specified at time of order to ensure proper component selection.

3. CORE FEATURES

DualMass Vibratory Drive System | Technical Basis: Subresonant tuned spring system with counterrotating eccentric masses | Operational Benefit: Generates a linear throwing motion with lower dynamic forces transmitted to the support structure | ROI Impact: Reduces structural support costs by up to 40% and cuts energy consumption by 1525% compared to bruteforce designs.

Hot Material Deck & Frame Construction | Technical Basis: Internally stressed frame with hightemperature alloy steel decks and heatresistant isolators | Operational Benefit: Withstands thermal expansion from continuous hot material feed up to 200°C+ without warping or premature fatigue | ROI Impact: Extends structural service life by an estimated 60%, deferring major capital replacement.

QuickChange Deck Tensioning System | Technical Basis: Rubbercapped bolt tensioners with integrated clamping rails | Operational Benefit: Allows a twoperson crew to change polyurethane or wire mesh screen panels in under two hours vs. half a shift | ROI Impact: Reduces labor costs per changeout by approximately 65% and increases plant availability.

Labyrinth & Grease Purge Sealing on Bearings | Technical Basis: Multistage sealing protects bearing housings from fine abrasive coke dust ingress | Operational Benefit: Ensures lubricant integrity and prevents contamination failure in highdust environments | ROI Impact: Field data shows bearing life extended by over 100%, eliminating 23 unplanned stoppages annually.

Modular Discharge Spouts with Wear Liners | Technical Basis: Bolton AR400 steel liners at all material contact points | Operational Benefit: Contains dust at transfer points; liners are easily replaced during planned maintenance | ROI Impact: Cuts ongoing maintenance time for chute repairs by 50% and improves dust control compliance.

4. COMPETITIVE ADVANTAGES

| Performance Metric | Industry Standard Baseline | This Coke Vibrating Screen Solution | Documented Advantage |
| : | : | : | : |
| Screen Cloth Life (Primary Deck) | 46 months on hot duty | 812 months with recommended panels| +100% improvement |
| Annual BearingRelated Stoppages| 23 events per year| 80% reduction |
| Energy Consumption per Ton Screened| Baseline of 100%| Measured average of 78%| 22% improvement |
| Throughput Consistency (±5% of target)| Degrades >10% after cloth wear| Maintains within ±7% through cloth life cycle| ~40% more consistent output |

5. TECHNICAL SPECIFICATIONS

Capacity & Rating: Designed for throughputs from 200 to 2,500 MTPH, depending on model size and aperture selection.
Drive Power: Motors range from 15 kW to 75 kW per drive unit, based on machine size and application duty.
Material Specifications: Main frame constructed from S355JR steel; decks from highyield strength steel; side plates lined with replaceable AR400 abrasionresistant steel; heatresistant rubber isolators.
Physical Dimensions (Example Model): Widths from 1.5m to 3.5m; lengths from 4.5m to 10m; multiple deck configurations available.
Environmental Operating Range: Ambient temperature range: 20°C to +50°C. Continuous material temperature capability up to 200°C (special configurations up to 250°C).

6. APPLICATION SCENARIOS

Integrated Steel Mill – Blast Furnace Feed Preparation | Challenge: Fluctuations in crusher output led to excessive 25mm fines in BF feed stockpile, reducing permeability and increasing fuel rate variability by up to 5%. Manual sampling was unreliable.| Solution:| Installation of a primary linear motion coke vibration screen postcrusher for strict scalp removal of 25mm material.| Results:| Fines content in BF feed stabilized at <3%. Plant reported a measurable 2% reduction in coke rate within six months due to improved burden consistency.

Merchant Coke Plant – Product Classification & Breeze Recovery Challenge:| Existing screens generated excessive noise (>105 dB) and suffered frequent spring failures every 8 weeks,causing unpredictable downtime during peak shipping periods.| Solution:| Replacement with dualmass linear motion coke vibration screens featuring noiseabatement enclosures.| Results:| Sound levels reduced below 85 dB at operator stations.Spring system has operated for over 14 months without failure.Product classification efficiency improved,yielding an additional 1 .5 % recovery of saleable furnace coke from previously misscreened streams.

7 . COMMERCIAL CONSIDERATIONS

Equipment pricing is tiered based on machine size ,construction materials,and drive power .A standard carbon steel unit for ambient temperature duty represents the entry point ,while hotduty models with full abrasion lining constitute the premium tier .

Optional features include:
Dust encapsulation hoods
Automated lubrication systems
Vibration monitoring sensors with predictive analytics output
Specialized screen media types (rubber,polyurethane,wedge wire)

Service packages range from basic commissioning support up through comprehensive multiyear performance contracts covering parts,labor,and scheduled inspections.Financing options including operating leases are available through partner institutions ,enabling preservation of capital budgets .

8 . FAQ

Q1 : Is this vibrating screen compatible with our existing feed conveyor height constraints?
A1 : Modular design allows customization of inlet height .Providing your existing conveyor tail section dimensions allows engineering confirmation .

Q2 : What is the expected operational impact during installation?
A2 : A typical replacement project requires a planned shutdown window of 5 7 days for foundation preparation ,rigging,and commissioning.Field crews are managedto minimize disruption .

Q3 : Can you supply matching screen cloth panels?
A3 : Yes .We provide both proprietaryand industrystandard tensioned panel systems.Dimensional drawings ensure fit .

Q4 : What are standard payment terms?
A4 : Terms are typically30 % upon order ,60 % preshipment,and10 % upon completionof commissioning.Custom terms can be discussedfor larger projects .

Q5 : How does performance change when screening wetcoke?
A5 : Moisture above 4 % can reduce efficiency due tobinding.We recommend heated decksor ball tray systems asan optionfor such conditions .

Q6 : Who handles installation?
A6 ：We provide detailed erection manualsand can supervise installation usingyour crew ，or provide turnkey serviceswith our certified partners .

Q7 ：What isthe lead timefora custom unit ?
A7 ：Lead timesvaryfrom14 weeksforstandard designsto22 weeksforfully customizedhotduty units ，contingenton current foundryand fabrication schedules .