Product Overview:

This experimental equipment uses the sample solution of fluoride and chloride ions obtained by high-temperature combustion hydrolysis. With a fluoride electrode as the indicator electrode and a saturated calomel electrode as the reference electrode, the concentration of fluoride ions in the sample solution is measured using the standard addition method. The fluorine and chlorine content in coal is calculated, meeting the requirements of the national standard "Determination of Fluorine and Chlorine in Coal."
Testing Principle:
The coal sample is mixed with a small amount of quartz sand and combusted and hydrolyzed at 1100°C in a mixed airflow of oxygen and water vapor. Various forms of fluoride in coal are converted into volatile fluorides, which enter the condensate water and quantitatively dissolve in it. Using a fluoride electrode as the indicator electrode and a saturated calomel electrode as the reference electrode, the concentration of fluoride and chloride ions in the sample solution is measured by the standard addition method, and the fluorine and chlorine content in coal is calculated.
Features:
1. Chinese LCD display with a user-friendly interface and simple operation.
2. PID-controlled furnace current ensures high temperature control accuracy and effectively extends the service life of the silicon carbide tube.
3. High-precision, low-temperature drift components are used for temperature measurement, ensuring long-term accuracy.
4. Based on the first-generation equipment, this instrument improves the sample feeding device, replacing manual feeding with continuous automatic feeding, avoiding the drawbacks of manual feeding and the risk of cracking in reduced-diameter tubes due to deflagration.
5. Supports timed sample feeding reminder function, making sample feeding more stable and continuous, improving the accuracy of test results, and simplifying the operational procedures for laboratory personnel.
6. Supports fault self-diagnosis function and over-temperature protection function.
7. The evaporation adjustment potentiometer uses TOCOS potentiometers from Taiwan, China, with high linearity and long service life.
8. Equipped with a high-precision digital ion meter to ensure experimental accuracy.
9. Includes a refrigeration circulation system for sample testing, allowing the next sample to be tested without cooling.
Technical Parameters:
1. Temperature control accuracy: 1100±2°C.
2. Heating time: Approximately 25 minutes to reach 1100±2°C.
3. Temperature setting range: 900°C—1200°C.
4. Fluorine measurement range: 0.01%-0.2%     Chlorine measurement range: 0.003%-1.0%
5. Analysis cycle: Hydrolysis time Chlorine (30 min/single sample), Fluorine (30 min/single sample)
Analysis time Chlorine (30 min/single sample), Fluorine (30 min/single sample)
6. Single high-temperature furnace: Temperature control range: 0-1200°C   Heating current: 0-10A
7. Oxygen rotor flow meter: Range 1000ml/min, minimum scale division: 50ml/min
8. Testing method: High-temperature combustion hydrolysis.
9. Precision: Complies with GB/T 4633—2014 national standard.
10. Power supply: AC 220V±10%, 50Hz.
11. Total power: ≤3.5KW.