Coal, Coke & Ore Physical Testing
Pre Drum Multi Deck Mechanical Vibrating Screen for Iron Ore Sinter and Pellet Classification
Item Number : KT-JTO
Price varies based on specs and customizations
- Screen Deck Configuration
- 2 or 4 Layers (40×40, 25×25, 16×16, 10×10 mm)
- Excitation Frequency & Amplitude
- 960 strokes/min, 6–8 mm stroke
- Effective Screening Deck Area
- 1600 × 500 mm per deck
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Product Overview
This pre-drum multi-deck mechanical vibrating screen is an industrial-grade sieving system engineered specifically to meet the stringent demands of blast furnace feed evaluation. Manufactured in strict compliance with the GB/T 24531-2009 testing standard, this equipment automates the classification of iron ore sinter and pellets prior to tumble index and abrasion testing. By replacing laborious manual sieving routines, the system substantially lowers operator physical fatigue while elevating throughput, procedural standardization, and repeatable particle fraction separation.
Designed for integration into quality-control laboratories, mine-site assay facilities, and metallurgical research plants, the equipment separates bulk samples into distinct, pre-defined grain size fractions across multiple screening decks simultaneously. The inclined multi-deck design channels charge material along three distinct cascading planes, ensuring rapid stratification and clean cutoff boundaries without blinding or material surging.
Constructed around a heavy-duty structural steel chassis, reinforced transmission framework, and resilient mechanical damping springs, this unit withstands the abrasive wear and impact energy inherent to high-volume ore handling. Operating with an optimized 960 rpm excitation cycle and continuous linear stroke, the equipment delivers unwavering screening performance across thousands of consecutive analytical testing cycles under demanding plant conditions.
Detail & Parts
Key Features
- Strict Compliance with GB/T 24531-2009: Engineered precisely to satisfy the standardized test criteria for pre-drum screening of iron ore sinter and pellets, guaranteeing data defensibility and full audit compliance across international metallurgical quality assurance protocols.
- Multi-Deck Stratification Geometry: Features a modular internal frame housing either two or four tiers of inclined screen plates with standard aperture sizes of 40×40 mm, 25×25 mm, 16×16 mm, and 10×10 mm, enabling one-step separation into calibrated size fractions.
- Optimized Inclined Material Cascading: Operates at an engineered deck inclination angle of 10° to 11.5°, allowing gravitational velocity and vibrational excitation to work in harmony so that material travels smoothly along the screening planes without pooling.
- High-Output Mechanical Excitation Drive: Driven by a balanced 2.2 kW industrial-duty electric motor operating at 960 vibrations per minute, generating the precise dynamic kinetic energy required to overcome inter-particle cohesion and surface friction.
- Controlled 6–8 mm Vibrating Amplitude: Calibrated stroke displacement maintains high particle mobility above the screen apertures, dislodging near-mesh particles and preventing pegging or blinding during high-mass sample throughput.
- Integrated Digital Cycle Automation: Features an automated screening runtime controller that allows technicians to pre-program cycle durations down to the exact second, enforcing operational repeatability while freeing laboratory personnel for secondary sample preparation.
- Heavy-Duty Spring Suspension System: Supported on isolated damping coil springs mounted on rugged structural pedestals, absorbing dynamic shock loads, protecting the surrounding laboratory floor, and dampening acoustic transmission.
- Generous 1600 × 500 mm Sieve Deck Surface: Provides a vast 0.8 m² active screening area per deck layer, capable of processing large-volume representative bulk samples in single batches without bed depth overload.
- Abrasion-Resistant Alloy Construction: Built with wear-resistant steel plate decks, reinforced feeding transitions, and corrosion-resistant fasteners designed to endure severe aggregate abrasion from jagged sinter materials.
Applications
| Application | Description | Key Benefit |
|---|---|---|
| Sinter Tumbler Index (ISO / GB/T) Preparation | Pre-classifying furnace sinter charges into standard granulometric fractions (+40 mm, 25–40 mm, 16–25 mm, 10–16 mm, -10 mm) prior to drum tumbling. | Replaces inconsistent manual screening with reproducible particle fractions required for ISO 3271 and GB/T 24531 tumble and abrasion testing. |
| Cold Pellet Compressive Strength Sizing | Isolating uniform pellet cohorts (typically within designated size bands) from fired or green iron ore pellet production lines. | Ensures tight particle size uniformity, eliminating diameter variations that compromise statistical validity in compressive crush testing. |
| Blast Furnace Burden Quality Control | Continuous verification of direct-reduced iron (DRI), blast furnace lump ore, and agglomerates delivered to smelting charging bins. | Mitigates blast furnace permeability issues by rapidly detecting and quantifying unwanted fines before charge loading. |
| Metallurgical Research & Pelletizing Pilot Plants | Laboratory-scale fractioning of novel agglomeration recipes, flux additions, and binder mixtures subjected to cyclic thermal and physical stress. | Delivers rapid, batch-to-batch fractionation with configurable runtimes to establish baseline degradation indices for experimental raw material mixes. |
| Mining & Beneficiation Plant Process Auditing | In-line or near-line verification of industrial vibrating screens, secondary crushers, and sintering disc discharge streams. | Identifies screen mesh wear or crusher bypass in upstream operations by conducting rapid, highly repeatable verification sieving. |
| Refractory & Heavy Mineral Aggregate Testing | Classification of dense refractory grog, ferroalloys, bauxite, and coarse slag materials requiring aggressive amplitude sieving. | High-torque mechanical drive and robust spring suspension effortlessly process high-density, sharp-edged mineral samples without frame fatigue. |
Technical Specifications
| Parameter | Specification (KT-JTO-2D Variant) | Specification (KT-JTO-4D Variant) |
|---|---|---|
| Base Product Item Number | KT-JTO-2D | KT-JTO-4D |
| Governing Standard | GB/T 24531-2009 | GB/T 24531-2009 |
| Number of Sieve Decks | 2 Layers | 4 Layers |
| Standard Screen Aperture Sizes | 40×40 mm, 25×25 mm (or customized pairs) | 40×40 mm, 25×25 mm, 16×16 mm, 10×10 mm |
| Screen Deck Dimensions (L × W) | 1600 mm × 500 mm | 1600 mm × 500 mm |
| Effective Screening Area per Deck | 0.8 m² | 0.8 m² (3.2 m² total stacked area) |
| Screen Deck Inclination Angle | 10° – 11.5° | 10° – 11.5° |
| Vibrational Amplitude (Stroke) | 6 – 8 mm | 6 – 8 mm |
| Excitation Frequency | 960 strokes/min (vibrations/min) | 960 strokes/min (vibrations/min) |
| Drive Motor Power | 2.2 kW | 2.2 kW |
| Operating Voltage / Electrical Supply | 380 V, 3-Phase, 50/60 Hz | 380 V, 3-Phase, 50/60 Hz |
| Screening Timing Control | Fully automatic, digital user-adjustable | Fully automatic, digital user-adjustable |
| Core Mechanical Assembly | Base foundation, support frame, screen body, sieve decks, spring brackets, damping coil springs, feed inlet, motor, transmission mechanism | Base foundation, support frame, screen body, sieve decks, spring brackets, damping coil springs, feed inlet, motor, transmission mechanism |
Why Choose This Product
- Validated Standardization for Quality Assurance: This screening unit removes measurement ambiguity by aligning every mechanical metric—from stroke amplitude and angle to deck dimensioning—directly with standard GB/T 24531-2009 requirements, ensuring complete inter-laboratory comparability.
- Superior Dynamic Balance and Frame Longevity: Engineered with balanced eccentric transmission shafts and tuned coil damping springs, the equipment eliminates destructive frame stress and prevents severe vibration transmission to surrounding laboratory infrastructure.
- Drastic Reduction in Labor Overhead: By automating the violent, repetitive manual shaking of heavy iron ore batches, this system reduces sample preparation time by over 70% while safeguarding staff against repetitive strain injuries.
- Industrial Ergonomics and Low Maintenance: The accessible open-deck architecture allows for fast visual inspection, simple screen plate interchangeability, and effortless cleaning between disparate material batches, keeping lifecycle operating costs exceptionally low.
Contact our technical application engineers today to receive a formal quotation, request layout drawings, or review custom deck aperture options for your metallurgical testing facility.
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