Sundhy SDTGA6000/6001/6002 Automated Coal & Industrial Solid Fuel Analyzer

Overview

The Sundhy SDTGA6000/6001/6002 series is a fully automated thermogravimetric industrial analyzer engineered for precise, high-throughput determination of moisture, ash, volatile matter, and fixed carbon in solid fuels and inorganic industrial materials. Based on standardized gravimetric thermal decomposition principles—comprising sequential controlled-atmosphere heating steps under inert (N₂) or oxidative (air) conditions—the system implements ASTM D5142-2009, ISO 562:2010, ISO 1171:2010, GB/T 212-2008, and GB/T 30732-2014 protocols with full hardware and software compliance. Unlike manual muffle furnace workflows, this dual-module architecture integrates independent water/ash and volatile matter testing units into a single coordinated platform, enabling parallel operation without cross-contamination or operator intervention during thermal cycles. Each module features programmable temperature ramps, real-time mass monitoring via integrated 0.1 mg analytical balance, and automatic sample handling—including patented crucible transport mechanisms that ensure positional stability and reproducible placement within the furnace zone.

Key Features

• Dual independent thermal modules: Water/ash unit (max. 20 samples) and volatile matter unit (26 samples), both operable simultaneously or separately.
• Patented crucible delivery mechanism for volatile matter analysis prevents sample tipping or slippage during insertion—critical for irregular or low-density materials such as needle coke and carbon pastes.
• Front-mounted external balance display enables real-time mass readout during weighing, minimizing workflow interruption and supporting GLP-compliant documentation practices.
• Integrated air compressor supplies both actuation pressure for automated water/ash furnace door operation and combustion-supporting airflow for ash determination—eliminating reliance on external oxygen sources.
• Modular mechanical design enhances long-term reliability and simplifies maintenance; no internal moving parts require routine calibration beyond balance verification and thermocouple validation.
• User-definable sample mass range (0.5–10 g) accommodates heterogeneous feedstocks including coal, coke, biomass, fly ash, cement clinker, bauxite derivatives, and metallurgical ores.

Sample Compatibility & Compliance

The SDTGA6000/6001/6002 analyzers are validated across three distinct application tiers. The SDTGA6000 supports coal, coke, solid biofuels, hazardous waste, fly ash carbon content, and cement loss-on-ignition (LOI). The SDTGA6001 extends compatibility to carbonaceous specialty products—including needle coke, calcined petroleum coke, graphite electrodes, baked anodes, and carbon pastes—per YB/T 5189, GB/T 24527, and YS/T 587. The SDTGA6002 adds certified capability for metal-bearing minerals (e.g., iron ore per YB/T 6730.68-2009, lateritic nickel ore per YS/T 820.26-2012), alumina (GB/T 6609.2-2009), cryolite, and carbonate rocks (GB/T 3286.8-2014). All models comply with ISO/IEC 17025 traceability requirements when operated with calibrated reference materials and documented instrument qualification (IQ/OQ/PQ). Data integrity meets FDA 21 CFR Part 11 expectations through audit-trail-enabled software with role-based access control and electronic signature support.

Software & Data Management

The embedded Windows-based control software provides full method configuration, real-time thermal/mass curve visualization, and automated report generation in PDF and CSV formats. Each test sequence logs timestamped furnace temperature profiles, mass loss derivatives (dm/dt), intermediate weight readings (pre- and post-heating), and final calculated parameters: moisture (%), ash (%), volatile matter (%), fixed carbon (%), and LOI (%). Raw data files are stored with SHA-256 checksums and cannot be edited post-acquisition. Software supports configurable pass/fail criteria against user-defined specification limits, automatic outlier flagging based on statistical deviation from historical control charts, and integration with LIMS via OPC UA or SQL Server export. Firmware updates retain full backward compatibility with legacy method templates and calibration records.

Applications

• Coal preparation plants: Rapid quality control of run-of-mine coal, washed coal, and blended feedstocks prior to coking or power generation.
• Carbon electrode manufacturing: In-process verification of moisture content in green anodes and ash yield in calcined coke batches.
• Cement production: Routine LOI testing of raw meal, clinker, and finished cement per GB/T 176-2017.
• Metallurgical laboratories: Quantification of burn-off in aluminum smelting additives (cryolite, AlF₃) and thermal decomposition behavior of iron-bearing ores under oxidizing atmospheres.
• Waste-to-energy facilities: Characterization of solid recovered fuel (SRF) and refuse-derived fuel (RDF) for calorific value estimation and emissions modeling.
• Research institutions: Fundamental studies of thermal degradation kinetics in lignocellulosic biomass and synthetic carbon matrices.

FAQ

What standards does the SDTGA6002 support for iron ore analysis?
It complies with YB/T 6730.68-2009 (iron ore) and YS/T 820.26-2012 (lateritic nickel ore) for loss-on-ignition determination using gravimetric weight loss at defined temperature plateaus.
Can the same crucible be reused across moisture, ash, and volatile matter tests?
No—each test stage requires dedicated crucibles conditioned per standard protocols; the system manages separate racks for water/ash and volatile matter modules to prevent cross-contamination.
Is nitrogen gas required for volatile matter determination?
Yes; the volatile matter module uses N₂ purge to maintain inert atmosphere during pyrolysis, consistent with ASTM D5142 and ISO 562 requirements.
How is temperature uniformity verified across the furnace zones?
Each module includes dual-point thermocouple validation ports; users perform periodic mapping using NIST-traceable reference thermometers per ISO/IEC 17025 Annex A.3.
Does the system support remote diagnostics or preventive maintenance alerts?
Yes—the embedded controller monitors heater duty cycle, balance drift rate, and pneumatic pressure decay, triggering configurable notifications via email or SNMP trap when thresholds exceed predefined operational baselines.