The ZRJ-2 Oxygen Absorption Method Spontaneous Combustion Characteristic Tester uses the dynamic physical adsorption of oxygen method to identify the spontaneous combustion tendency of coal, i.e., the chromatographic oxygen absorption identification method. This method uses the amount of physically adsorbed oxygen per gram of dry coal at room temperature (30°C) and normal pressure (101325Pa) as the main indicator for classification, dividing the spontaneous combustion tendency of coal into three categories: easily spontaneous combustion, spontaneous combustion, and not easily spontaneous combustion. For specific methods, refer to GB/T20104 "Chromatographic Oxygen Absorption Identification Method for Coal Spontaneous Combustion Tendency". This equipment is a fully automatic tester.
Product features of the ZRJ-2 Oxygen Absorption Method Spontaneous Combustion Characteristic Tester: The chromatographic oxygen absorption method complies with the new standard GB/T 20104-2006 "Chromatographic Oxygen Absorption Identification Method for Coal Spontaneous Combustion Tendency"; the analysis process is fully automatic, with computer-controlled sample injection lines; simultaneous four-channel sample processing system; the ZRJ-2 Oxygen Absorption Method Spontaneous Combustion Characteristic Tester has strong specificity, adopts a designed structure, is compact, and has stable performance; it sets and displays instrument electrical parameters in page form; it uses anti-oxidation hot wire elements and a constant hot wire average temperature bridge power supply method; it comes with dedicated coal spontaneous combustion workstation software, with strong specificity and rich functions; the instrument is microcomputer-controlled, with key input, large-screen LCD display, and a full Chinese interface, featuring good reliability, simple operation, high circuit integration, and long-term operation capability. Microcomputer control, automatic temperature control, automatic printing of analysis results, and automatic classification according to standard regulations, with audio and video capture functions.
The ZRJ-2 Oxygen Absorption Method Spontaneous Combustion Characteristic Tester is a versatile, high-performance experimental instrument specifically designed for determining the spontaneous combustion tendency of coal. It adopts the chromatographic oxygen absorption method and complies with the latest standards.
Technical Parameters of ZRJ-2 Oxygen Absorption Method Spontaneous Combustion Characteristic Tester
Executive Standard: GB/T20104 "Chromatographic Oxygen Absorption Identification Method for Coal Spontaneous Combustion Tendency"
Measurement Method: Chromatographic oxygen absorption method;
Number of sample tubes for measurement: 4 groups;
Measurement Range: Oxygen absorption amount 0.05ml-4ml (milliliters)/g (coal);
Measurement Error: ≤5%;
Baseline Drift: ≤0.6mv/hr;
Sensitivity: ≥10mv/ml (N2 carrier gas, O2 peak height);
TCD: Sensitivity S≥15000mv.ml/mg
Temperature Control:
Column Oven: 0°C～450°C, temperature control accuracy +0.05°C
Programmed Temperature Rise: 5 stages, temperature rise rate: 0.1～30°C/min
Injector: 0～450°C
Detector: 0～450°C
Power Supply: 220V±20%, 50Hz±0.5.
Power Consumption: 2200W:
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