Coal, Coke & Ore Physical Testing
Coke Pre Drum Sizing Mechanical Sieve for Metallurgical Coke Fraction Classification and Breeze Content Analysis
Item Number : KT-JTF
Price varies based on specs and customizations
- Screen Plate Apertures
- 80×80, 60×60, 40×40, 25×25 mm
- Sieve Body Inclination
- 11.5°
- Excitation Amplitude
- 6–8 mm
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Product Overview
This coke pre drum sizing mechanical sieve is an industrial grading system engineered specifically for metallurgical laboratories, coking plants, and steelmaking facilities. Designed to automate the classification of run-of-oven and bulk metallurgical coke prior to mechanical tumbler drum testing (such as Micum, Irsid, or ASTM strength tests), the equipment separates samples into standardized size fractions including greater than 80 mm, 60 to 80 mm, 40 to 60 mm, 25 to 40 mm, and coke breeze under 25 mm. By standardizing the physical screening trajectory and vibration profile, this unit eliminates the extensive physical labor and analytical deviations traditionally associated with manual screening methods.
Built for demanding testing environments, this mechanical sieve provides consistent determination of coke size distribution and precise measurement of fine coke breeze content. Operating in blast furnace raw material inspection centers, commercial testing bureaus, and coking optimization units, the equipment ensures that bulk samples undergo uniform mechanical separation. This standardized grading is essential for establishing baseline size profiles and preparing precisely proportioned sample charges for subsequent drum index testing, thereby directly safeguarding furnace permeability and combustion efficiency.
Engineered to withstand the relentless abrasion and heavy dynamic loading of large coke lumps, the system features a high-rigidity structural frame and an advanced vibration dampening mechanism. The balanced drive assembly delivers continuous, reliable excitation forces that efficiently stratify bulk charges without causing excessive secondary particle degradation. Industrial operators can rely on this robust machine to maintain repeatable mechanical grading across round-the-clock shift cycles, lowering labor overhead while securing audit-ready metallurgical data.
Detail & Parts
Key Features
- Four-Tier Precision Classification: Equipped with four layered square-aperture screen decks (80x80 mm, 60x60 mm, 40x40 mm, and 25x25 mm) that accurately separate raw coke into five discrete commercial fractions in a single operational pass.
- High-Efficiency Eccentric Vibration Drive: Powered by an industrial 0.75 kW motor linked via a heavy-duty V-belt to an eccentric counterweight flywheel, generating a consistent 6 to 8 mm excitation amplitude that rapidly fluidizes and stratifies dense coke beds.
- Optimized Gravity Flow Slope: Engineered with a fixed 11.5-degree screen body inclination that leverages gravitational feed and dynamic vibration to advance coarse particles smoothly down the deck while preventing screen blinding and material accumulation.
- Integrated Multi-Stage Vibration Damping: Built with dedicated shock-absorption assemblies that isolate high-frequency dynamic forces from the primary structural chassis, drastically suppressing structural noise and extending equipment working life.
- Heavy-Duty Section Steel Framework: Constructed from structural section steel profiles joined by high-strength penetration welds to deliver exceptional torsion resistance under heavy aggregate shock loads.
- Direct Coke Breeze Quantification: Features a dedicated 25x25 mm bottom classification stage that cleanly extracts fines and breeze under 25 mm, providing rapid and repeatable baseline data for blast furnace fuel indexing.
- Elimination of Operator Variabilities: Fully automates the vigorous shaking and tumbling motions required by metallurgical screening standards, removing operator fatigue and eradicating human inconsistency from daily quality control audits.
Applications
| Application | Description | Key Benefit |
|---|---|---|
| Pre-Drum Tumbler Preparation | Sizing metallurgical coke samples into designated fractions before Micum (M40/M10) or Irsid (I20/I10) tumbler drum tests. | Ensures uniform feed charging compliant with testing standards, preventing sample bias in subsequent mechanical strength degradation analyses. |
| Blast Furnace Feed Coke Auditing | Screening incoming furnace coke deliveries to verify compliant particle distributions (typically 25 to 80 mm) and detect oversized lumps. | Maintains gas permeability across the blast furnace shaft by screening out irregular lump profiles that impede optimal counter-current reduction. |
| Coke Breeze Content Determination | Accurately isolating the sub-25 mm fine fraction from bulk production batches during quenching and wharf discharging. | Delivers precise tracking of yield losses and coking degradation, protecting thermal efficiency by preventing fines from entering high-temperature zones. |
| Coking Plant Screen Line Optimization | Verifying sizing efficiencies of primary industrial vibrating screens and scalpers by running split batch testing on product discharge streams. | Identifies worn screen media, uneven feed distribution, or aperture blinding on the production floor through calibrated bench-scale fraction verification. |
| Coal Blending and Carbonization R&D | Evaluating the physical lump yields and breakdown tendencies of pilot-scale carbonization ovens using alternative coking coal blends. | Delivers repeatable particle distribution data to correlate laboratory coal petrography and plastic properties with real-world lump yield characteristics. |
| Commercial Custody Transfer Testing | Conducting unbiased third-party particle size verification at receiving wharves, rail transshipment terminals, and bulk coke shipping ports. | Provides verifiable, machine-controlled classification records that minimize commercial disputes between coke producers and blast furnace operators. |
Technical Specifications
| Specification Parameter | Value / Configuration |
|---|---|
| Equipment Model Code | KT-JTF |
| Tier Configuration | 4 Layers (Yielding 5 Output Fractions) |
| Screen Plate Aperture Specifications | Layer 1: 80 × 80 mm Layer 2: 60 × 60 mm Layer 3: 40 × 40 mm Layer 4: 25 × 25 mm |
| Separated Size Classes | >80 mm, 60–80 mm, 40–60 mm, 25–40 mm, <25 mm (Coke Breeze) |
| Screen Plate Geometry | Square-hole punched/welded steel plate |
| Screen Body Inclination Angle | 11.5° |
| Excitation / Vibration Amplitude | 6–8 mm |
| Electric Drive Motor Power | 0.75 kW |
| Transmission Mechanism | Industrial V-Belt with counterweighted flywheel assembly |
| Framework Construction | Heavy-duty welded section steel structural chassis |
| Sieve Body Material | Heavy-gauge welded abrasion-resistant steel plate |
| Shock Isolation System | Integrated mechanical vibration-reduction damping mountings |
| Primary Operating Function | Mechanized classification of metallurgical coke before drum test & breeze quantification |
Why Choose This Product
- Engineered for Rigorous Standards Compliance: Eliminates the inconsistencies of manual sieving by reproducing uniform kinetic energy and dwell time across all sample batches, guaranteeing full repeatability for pre-drum grading routines.
- Superior Industrial Longevity: Fabricated from structural steel profiles and heavy-gauge plate, this equipment resists severe abrasive wear from jagged coke lumps and tolerates the cyclic stress of continuous industrial operation.
- Optimized Energy and Operational Efficiency: Utilizing a balanced 0.75 kW drive paired with an eccentric mass flywheel, the unit maximizes dynamic particle throw while drawing minimal electrical power and keeping mechanical wear to a minimum.
- Comprehensive Safety and Noise Suppression: Advanced vibration dampening assemblies absorb excessive kinetic shock, shielding foundational structures from cyclic stress and creating a quieter, safer working environment for laboratory technicians.
Connect with our technical engineering team today to request a detailed quotation, technical documentation, or custom screening configuration tailored to your metallurgical laboratory requirements.
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