Coal Float and Sink Test Recovery Apparatus Heavy Liquid Bucket Mesh Bottom Bucket Hydrometer Skimmer Slime Bucket

Product Overview

The coal float and sink test recovery apparatus suite provides an integrated, standardized separation system engineered for gravimetric washability analysis and density fractionation of raw and prepared coal samples. Comprising a dedicated heavy liquid vessel, precision mesh-bottom bucket, calibrated hydrometer, woven wire skimmer spoon, and coal slime collection bucket, this equipment enables laboratory analysts to determine particle liberation characteristics, washability curves, and clean coal yields with exceptional operational repeatability.

Developed for mineral processing plants, coal preparation facilities, commercial assay laboratories, and energy research institutes, this testing assembly facilitates multi-gravity density separations across organic and inorganic heavy media. It streamlines sequential immersion, drainage, and product skimming while preventing fine sample loss and mitigating operator handling fatigue during high-volume daily testing schedules.

Fabricated from heavy-gauge, chemical-resistant stainless steel and precision-calibrated screening media, this apparatus delivers dependable corrosion resistance and geometric stability under continuous chemical exposure. The balanced construction withstands high cyclic mechanical loading during sample submersion and rapid drainage, ensuring reproducible fractional separation across extensive metallurgical testing campaigns.

Key Features

• Precision Woven Bottom Drainage: The cylindrical inner bucket integrates a 0.5 mm square woven metallic wire mesh base, ensuring rapid liquid medium drainage, complete retention of designated coal particle fractions, and total freedom from near-aperture particulate blinding.
• Hydrodynamically Optimized Nesting Dimensions: Engineered with a diameter 40 mm narrower than the heavy liquid bucket and an elevation extending 50 mm above the liquid level, the mesh bucket eliminates boundary wall friction, mitigates hydraulic suction during extraction, and prevents medium overflow.
• Reinforced Structural Lifting Bail: Fitted with an ergonomically contoured, rigid stainless steel top bail, the inner bucket provides balanced stability during manual extraction or overhead hoist-assisted lifting under dense, saturated coal loads.
• Engineered Long-Reach Skimmer Spoon: Featuring an overall length of 470 mm with a 270 mm handle and a 200 mm diameter circular scoop, the skimmer enables precise, steady collection of floating coal fractions without disrupting underlying sediment layers.
• Standardized Sieve Aperture Consistency: The circular skimmer employs the identical 0.5 mm square woven metallic wire mesh as the main dipping container, maintaining absolute fractional consistency between skimmed surface floats and submerged sink products.
• Chemical-Resistant Austenitic Construction: Every vessel body, reinforcement rim, handle, and perforated joint is fabricated from heavy-gauge stainless steel plate, delivering prolonged resistance against aggressive zinc chloride solutions, organic heavy liquids, and corrosive wash reagents.
• Calibrated Dense Medium Hydrometer System: The accompanying high-precision hydrometer provides rapid, verified specific gravity determinations across typical dense medium ranges, enabling tight control over multi-gravity bath preparations before each separation cycle.
• Dedicated Slime Clarification Vessel: The high-capacity coal slime bucket serves as an essential sedimentation and collection vessel, enabling effective settling of ultrafine coal solids, medium rinsing effluent buffering, and precise mass balance accounting.
• Smooth Ground Sanitary Seams: All interior perimeter welds and mesh support rings are fully ground, polished, and chemically passivated to eliminate crevices, prevent grain entrapment between consecutive test cycles, and allow rapid rinse-down cleaning.

Applications

The apparatus suite supports comprehensive gravimetric separation and fractional density characterization across a broad spectrum of coal testing workflows, mineral processing environments, and exploratory research programs.

Technical Specifications

The following tables detail the engineering dimensions, component configurations, and operational parameters for the KT-DT coal float and sink recovery test apparatus.

Component Specifications and Dimensions

Material and Operational Parameters

Why Choose This Product

• Engineered Dimensional Precision: Every component is manufactured to strict dimensional tolerances, ensuring the required 40 mm diameter clearance and 50 mm height margin between the inner mesh bucket and outer heavy liquid container, preventing fluid sloshing, liquid displacement loss, and sidewall binding during rapid testing cycles.
• Certified 0.5 mm Aperture Consistency: Both the mesh-bottom vessel and the skimming spoon feature precision-calibrated 0.5 mm square metallic wire mesh, maintaining absolute uniformity between surface-skimmed float fractions and bottom sink products to prevent particle loss and erroneous yield calculations.
• Corrosion-Proof Heavy-Gauge Stainless Steel: Unlike low-grade galvanized or painted sheet vessels that rapidly deteriorate in dense zinc chloride or aggressive organic solvent environments, this apparatus utilizes premium passivated stainless steel for maximum chemical longevity, structural rigidity, and rust-free operation.
• Operator-Focused Ergonomic Design: Incorporating an extended 270 mm handle on the 200 mm diameter skimmer scoop and a balanced structural bail on the mesh bucket, the apparatus significantly reduces physical strain and keeps technician hands safely clear of chemical dense media.
• Comprehensive Quality Assurance and Customization: Each assembly undergoes rigorous dimensional verification and mesh aperture inspection prior to dispatch, backed by responsive technical support and options for customized vessel dimensions tailored to specialized batch volumes.

Contact our technical sales team today to request a quotation or discuss customized dimensional configurations for your laboratory coal washability testing requirements.

Trusted by Industry Leaders