Coal & Coke Testing Equipment
Automatic Calorimeter Oxygen Bomb Calorific Value Tester
Item Number : KT-TE4
Price varies based on specs and customizations
- Temperature Resolution
- 0.0001 K
- Heat Capacity
- Approx. 10,500 J/K
- Measurement Accuracy
- 0.1% (Benzoic Acid)
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Product Overview
This automatic calorimeter delivers precision thermochemical measurement for solid combustible materials, serving as a critical testing platform for evaluating the calorific values of coal, coke, gangue, and alternative biomass fuels. Engineered around an intelligent microcontroller architecture, the system coordinates automated water filling, dynamic temperature conditioning, volumetric water dosing, mechanical stirring, and ignition sequencing. By automating routine analytical steps, this equipment minimizes operator intervention, mitigates human error, and guarantees repeatable, benchmark-compliant determinations of gross calorific value.
Designed primarily for heavy-industry and high-throughput analytical settings, this unit meets the rigorous testing requirements of thermal power generation, coal mining, extractive metallurgy, petrochemical processing, and commercial third-party inspection laboratories. It complies fully with the standard test method defined in GB/T 213-2008, ensuring seamless data harmonization and verification across national and industrial quality assurance frameworks. The robust internal calorimeter architecture processes challenging sample matrices reliably, maintaining operational consistency even in harsh plant-adjacent lab environments.
Industrial procurement teams and laboratory managers depend on this testing system for long-term measurement integrity and operational resilience. Featuring high-capacity dual-jacket thermal buffering, an ultra-sensitive thermometric sensing network with sub-millikelvin resolution, and modular peripheral compatibility (including dedicated Windows PC integration and USB data interfaces), the apparatus optimizes sample turnaround while maintaining low ownership costs. Whether deployed for routine fuel grading or contract verification, the system yields rapid, dependable results in approximately 15 minutes per test.
Detail & Parts

Key Features
- Microcontroller-Driven Automation: An advanced onboard microcomputer system coordinates water injection, thermal equilibration, volumetric dosing, mechanical agitation, and high-precision ignition, cutting manual preparation down to simply seating the oxygen bomb.
- Sub-Millikelvin Temperature Resolution: Ultra-sensitive thermistor sensing yields an analytical resolution of 0.0001 K across a 0°C to 65°C operating span, capturing minimal enthalpy shifts for unmatched caloric calculation accuracy.
- Precision Volumetric Dosing: The automated inner cylinder filling mechanism holds volumetric dosing error to ≤±0.1 g, establishing steady heat capacity parameters across sequential sample runs without tedious manual weighing.
- Dual-Cylinder Thermal Jacket Design: Combining a generous 30 L outer water reservoir with a 2.3 L inner cylinder, the system provides formidable thermal inertia and environmental shielding against ambient temperature drifts.
- Rapid 15-Minute Test Cycle: Optimized thermodynamic heat dissipation and rapid algorithmic tracking complete gross calorific evaluations in approximately 15 minutes, significantly boosting daily laboratory throughput.
- Strict Standards Compliance: Designed and calibrated to conform strictly to GB/T 213-2008 standards, achieving a benzoic acid calorific measurement error of within 0.1% for dependable legal-metrology grading.
- Industrial 24V Ignition Circuitry: Integrated 24 V pulse ignition circuitry delivers positive wire ignition within a controlled timing sequence, preventing sample splattering and incomplete combustion.
- Intuitive Display and Microcomputer Link: Features a user-friendly large-format LCD interface with menu-guided operations, alongside an optional USB interface supporting Windows-based external microcomputer control and data reporting.
Applications
| Application | Description | Key Benefit |
|---|---|---|
| Power Plant Coal Grading | Routine calorific value testing of pulverized bituminous coal, sub-bituminous coal, and lignite prior to boiler combustion. | Optimizes air-to-fuel ratios, enhances combustion efficiency, and verifies supplier billing energy content. |
| Commercial Coal Quality Inspection | Third-party inspection and trade verification of raw, washed, and blended coals at transportation hubs and ports. | Delivers certified, legally defensible calorific determinations compliant with GB/T 213-2008 benchmark standards. |
| Metallurgical Coke Evaluation | High-precision thermal characterization of metallurgical coke, semi-coke, and carbon anodes used in blast furnaces and smelters. | Guarantees stringent energy density specifications required for stable blast furnace thermal profiles. |
| Gangue and Tailings Assessment | Calorific quantification of coal gangue, washing rejects, and mineral tailings for fluidized bed combustion or utilization. | Identifies viable low-grade fuel streams while supporting mine waste valorization and environmental compliance. |
| Petrochemical Fuel Sludge & Petcoke Analysis | Determination of higher heating values in petroleum coke, heavy fuel oil residues, and refinery carbonaceous byproducts. | Enables precise blending calculations for industrial boilers and secondary petrochemical heat recovery systems. |
| Biomass & Refuse-Derived Fuel (RDF) Testing | Analytical screening of pelletized agricultural biomass, municipal solid waste fractions, and industrial refuse fuels. | Provides standardized energy yield metrics (0.1% accuracy on benzoic acid standards) for renewable energy conversion. |
Technical Specifications
| Parameter | Specification Value (Model: KT-TE4) |
|---|---|
| Item Number | KT-TE4 |
| Heat Capacity | Approximately 10,500 J/K |
| Temperature Resolution | 0.0001 K (0.1 mK) |
| Test Duration | Approximately 15 min per sample |
| Outer Water Jacket Capacity | 30 L |
| Inner Cylinder Water Capacity | Approximately 2.3 L |
| Water Quantitative Error | ≤ ±0.1 g |
| Ignition Voltage | 24 V |
| Ignition Timing Sequence | 6 min ignition interval |
| Calorific Accuracy / Repeatability | ≤ 0.1% (Benzoic Acid benchmark) |
| Temperature Measurement Range | 0°C to 65°C |
| Ambient Operating Temperature Range | 5°C to 40°C |
| Power Supply Requirements | AC 220 V ± 10%, 50 Hz |
| Power Consumption | < 300 W |
| Analytical Standard Compliance | GB/T 213-2008 (Determination of Calorific Value of Coal) |
| User Interface & Display | Large-screen LCD with step-by-step menu prompts |
| Communication & Control Expansion | Optional USB port, Windows XP / PC system integration |
Why Choose This Product
- Engineered Thermostatic Stability: A high-capacity 30-liter thermal buffer shield prevents ambient laboratory temperature swings from skewing inner cylinder measurements, ensuring reproducible baselines regardless of shifts in ambient conditions.
- Precision Metrological Integrity: With a benzoic acid calibration accuracy within 0.1% and a temperature resolution of 0.0001 K, this unit provides the high repeatability demanded by commercial assayers and regulatory bodies.
- Streamlined Automated Workflow: Integrated automated water regulation, automatic dosing within ±0.1 g, automated stirring, and automatic firing minimize hands-on preparation time, freeing laboratory personnel for sample preparation.
- Durable Construction & Low Running Costs: Operating on less than 300 W with robust internal stainless steel fluid circuits and proven solid-state components, the system is engineered for continuous industrial shifts without costly routine overhauls.
- Flexible System Architecture: Designed to scale with laboratory needs, this apparatus supports standalone push-button operation via an LCD interface as well as PC-linked supervisory control with centralized data management.
Contact our technical sales team today to discuss your analytical throughput requirements, request formal quotes, or configure specialized calorific testing instrumentation for your facility.
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Product Datasheet
Automatic Calorimeter Oxygen Bomb Calorific Value Tester
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