Introduction to Nitrogen Determination Instrument
Nitrogen in coal, as a crucial element, produces nitrogen oxides upon combustion that severely pollute the atmosphere, easily form acid rain, and acidify the soil. Additionally, nitrites are significant carcinogens. In the power industry, the measurement of nitrogen content in coal is used to calculate the combustion heat, theoretical combustion temperature, composition of combustion products, and thermal balance.
Operating Conditions for the Nitrogen Determination Instrument:
(1) Temperature: 0-40°C
(2) Relative Humidity: ≤80%
(3) Power Supply: Voltage: 220±22V
Frequency: 50±0.5Hz
(4) Carrier Gas: Helium, purity above 99.8%.
(5) Power: Not less than 4.5KW.
(6) No strong magnetic field interference

Basic Parameters:
(1) Measurement Range: 0.01－50%
(2) Sample Amount: Approximately 100mg;
(3) Single Test Duration: Approximately 35min;
(4) Rated Power Consumption: 4000W

Technical Requirements for the Nitrogen Determination Instrument:
(1) Repeatability (Complies with GB/T 19227-2008) ≤0.08%
(2) Temperature Control Accuracy: Set value ±10°C
(3) Temperature Control Range:
Hydrolysis Furnace: Room temperature ~1200°C
Steam Generation Furnace: Room temperature ~500°C
Distillation Furnace: Room temperature ~500°C