Microwave Moisture Analyzer Rapid Coal Moisture Loss on Drying Determination System

Product Overview

This system represents a major advancement in rapid industrial moisture determination, combining high-frequency electromagnetic microwave excitation with auxiliary thermal drying to measure moisture content via the loss-on-drying principle. Engineered specifically for solid fuel quality control and demanding analytical workflows, the equipment integrates a rotary sample carousel, a sealed heating cavity, and a high-resolution balance to automate the entire desiccating, weighing, and computational sequence. By eliminating the multi-hour delays typical of traditional convection drying ovens, this unit delivers high-throughput analytical turnaround while safeguarding the physical and chemical integrity of test specimens.

Designed primarily for coal quality inspection, thermal power generation plants, metallurgy facilities, commercial testing agencies, and coal beneficiation operations, the instrument handles both coarse total moisture specimens and finely ground analytical moisture samples. It provides direct, highly repeatable moisture metrics essential for calorific value calculation, trade settlement, and combustion process optimization. The adaptable drying chamber accommodates multiple sample geometries, allowing testing facilities to seamlessly evaluate run-of-mine bulk coal, pulverized fuel, and specialized coking blends with equal precision.

Engineered for continuous duty in rigorous testing environments, this equipment pairs heavy-gauge structural components with industrial-grade microwave magnetrons and microcomputer control boards. The stable internal architecture insulates the precision balance mechanism from heat accumulation and mechanical vibration, ensuring exceptional zero-point stability and baseline repeatability even under round-the-clock laboratory schedules. Operating in strict accordance with national and international standard test methods, this system delivers dependable, audit-ready data for quality-critical operations.

Key Features

• Dual-Energy Microwave and Infrared Drying Architecture: Utilizing a 2450 MHz microwave field with up to 900 W output power alongside an auxiliary 1200 W infrared heating element, the system induces rapid molecular friction within water dipoles while maintaining surface temperature uniformity to eliminate moisture without thermal decomposition.
• Integrated High-Precision Internal Balance: Featuring an integrated balance mechanism with 0.001 g readability and up to 240 g capacity, the unit measures sample mass loss dynamically in real time, eliminating operator transfer errors and preventing atmospheric moisture reabsorption during handling.
• Multi-Position Automatic Revolving Carousel: A motor-driven mechanical drive indexer rotates up to nine individual samples through the heating zone and weighing station, maximizing laboratory throughput by testing an entire batch in a single automated operational sequence.
• Dual Sample Particle Size Versatility: Engineered to handle both coarse total moisture coal specimens up to 6 mm particle size and fine analytical samples ground to 0.2 mm, offering full analytical flexibility without requiring separate instrumentation for different sample preparation stages.
• Rapid Operational Turnaround: Complete moisture loss determination is achieved within 20 minutes per batch, slashing analytical turnaround times by more than 75% compared to conventional atmospheric convection drying ovens.
• Intelligent Microcomputer Control and LCD Interface: The internal microprocessor automatically executes tare cycles, mass readings, microwave modulation, moisture loss calculations, and real-time data visualization on a clear liquid crystal display.
• Onboard Thermal Micro-Printer: Integrated printing hardware instantly generates permanent paper records of specimen mass values, test duration, moisture percentages, and test metadata, ensuring complete analytical traceability for laboratory information management systems.
• Rigorous Standard Compliance: Full procedural alignment with GB/T 15334 (Determination of Moisture in Coal by Microwave Drying Method) and GB/T 211 testing standards guarantees that all analytical methodologies fulfill statutory inspection requirements.

Applications

Technical Specifications

Why Choose This Product

• Industrial Heating and Sensor Integration: The equipment combines heavy-duty microwave generation with auxiliary infrared heating to ensure uniform moisture liberation without hot spots or sample degradation, delivering lab-grade results in harsh operating environments.
• Direct Weighing Without Transfer Errors: The built-in 0.001 g electronic balance measures sample mass inside the testing cavity, completely avoiding the moisture reabsorption, desiccator cooling delays, and manual handling errors common in multi-step procedures.
• High-Throughput Multi-Sample Efficiency: Capable of processing nine separate analytical or total moisture samples simultaneously within 20 minutes, this unit significantly reduces laboratory labor costs and eliminates operational bottlenecks.
• Complete Testing Traceability: With automated data capture, onboard microcomputer processing, clear LCD visualization, and hard-copy micro-printer documentation, every test meets stringent quality audit and trade compliance demands.
• Long-Term Operational Durability: Built using precision-machined mechanical transmission assemblies, corrosion-resistant internal linings, and heavy-duty electronics, this analyzer guarantees consistent performance across thousands of thermal cycles.

Contact our technical sales team today to request a quote, configure customized sample carousels, or explore our full line of industrial laboratory equipment.

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