Coal Rotary Drum Slime Testing Machine Coal Slurrification Index Tester

Product Overview

This coal rotary drum slime testing machine is specialized mechanical testing equipment developed to assess the slurrification index and mechanical degradation behavior of raw coal during washing and beneficiation operations. Designed in strict compliance with the GB/T 26918 standard, this system provides accurate, reproducible laboratory simulation of the hydrodynamic agitation, attrition, and particle degradation that occur within wet processing circuits. By quantifying how lump coal breaks down into ultrafine slimes when subjected to mechanical rotation in water, the apparatus delivers critical process insights that inform washery circuit design, flotation circuit optimization, and tailings management.

Engineered primarily for industrial coal preparation facilities, commercial inspection authorities, mineral processing laboratories, and academic research institutions, the equipment accommodates all primary ranks of feed coal. It evaluates bituminous coal, anthracite, and lignite under uniform, standardized hydrodynamic conditions. The unit allows plant engineers and fuel analysts to predict slime generation rates, optimize dense medium separation performance, and avoid the operational inefficiencies caused by uncontrolled clay or shale breakdown in washing media.

Constructed for demanding industrial lab environments, the system combines a rigid structural steel base, high-torque industrial motor, precision worm-gear transmission, and a dynamically balanced rotating vessel. The equipment operates with dependable repeatability over prolonged duty cycles, minimizing mechanical vibration while maintaining tight tolerances on rotational velocity and test duration. Its resilient build quality ensures consistent rotational mechanics even when loaded with high-density mineral charges, giving testing facilities complete confidence in their slurrification index data.

Detail & Parts

Key Features

• Standardized Drum Geometry and Capacity: The cylindrical vessel features a precision-machined internal volume of 200 liters with an internal length of 1000 mm (±2 mm tolerance), fully satisfying standard testing criteria for uniform sample tumbling and fluid circulation.
• High-Torque Industrial Drive Transmission: Powered by a 2.2 kW six-pole motor paired with a heavy-duty WD120 worm gear reducer at a 1:47 ratio, this drive assembly delivers constant high torque at 20 r/min, preventing motor stalling or speed drift under full 25 kg coal sample loads.
• Precision Programmable Cycle Control: An integrated digital control system provides timer pre-settings from 0 to 99 minutes, enabling precise test automation that halts vessel rotation automatically when the designated run time elapses.
• Rigid Structural Support Assembly: Heavy-duty spherical roller bearing housings and precision-turned solid support shafts mount the rotating drum securely to the structural channel frame, absorbing dynamic rotational forces and isolating vibration during continuous testing.
• Quick-Access Sealed Discharge Hatch: The drum is engineered with a wide-aperture discharge port fitted with liquid-tight clamping hardware, facilitating rapid slurry evacuation, exhaustive material recovery, and hassle-free post-test wash-down.
• Universal Coal Rank Adaptability: Calibrated to handle heterogeneous feedstock mixtures, the drum mechanics and structural components smoothly process friable lignites, dense bituminous coals, and high-hardness anthracites without localized abrasion wear.
• Operational Operator Safety Integration: Designed with full operator protection in mind, the unit features enclosed drive guards, stable electrical grounding, an accessible emergency control interface, and stable rotational mechanics that eliminate mechanical tipping hazards.

Applications

Technical Specifications

Why Choose This Product

• Strict Standard Compliance: Manufactured explicitly according to GB/T 26918-2011 specifications, ensuring your laboratory test data adheres directly to technical supervision, commercial dispute settlement, and industrial washery audit requirements.
• Industrial-Grade Transmission Longevity: The integration of a 2.2 kW industrial 6-pole motor with a WD120 heavy-duty worm-gear reduction box guarantees steady 20 r/min operation without speed variation, torque sag, or premature gear teeth wear.
• Engineered for High-Density Tumbling Loads: Built from thick-gauge steel with reinforced bearing pedestals, the rotating assembly easily withstands repeated tumbling cycles containing 25 kg coal charges plus liquid slurry volumes without structural deflection.
• Low Maintenance and Ergonomic Handling: The vessel features a balanced axis design and a swift-release discharge hatch that expedites cycle turnaround times, simplifies cleanup procedures, and minimizes routine maintenance overhead.
• Comprehensive Process Value: By providing exact determination of raw coal slime generation tendencies, this testing apparatus saves washing operations substantial chemical flocculant costs and protects flotation circuits from fine particle blinding.

Connect with our technical engineering team today to request a quotation, discuss testing specifications, or configure sample preparation accessories tailored to your coal analysis facility.

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