The coal spontaneous combustion indicator gas testing apparatus employs intelligent measurement: it automatically completes the heating process and supplies gas to the chromatograph without manual intervention, thereby improving experimental efficiency. Integrated usage: it consists of a heating furnace, temperature control box, coal sample oxidation chamber, and gas path system, and is used in conjunction with a gas chromatograph to complete the testing of spontaneous combustion indicator gases and their indices. The coal seam spontaneous combustion indicator gas testing apparatus is a device specifically developed for the early prediction and forecasting of coal spontaneous combustion fires. By simulating the process of coal spontaneous combustion, this apparatus selects appropriate indicator gases to provide a scientific basis for preventing coal mine spontaneous combustion fires. It can analyze the types and concentrations of gas products at various temperature ranges, as well as the temperature change characteristics of coal samples, offering data support for early warning of coal spontaneous combustion fires.
Automated sealing: the coal sample container opens and closes automatically, simplifying operational steps and enhancing testing efficiency.
Precise temperature control: accurate temperature control is achieved using "fuzzy PID" control, resulting in smaller temperature overshoot, faster stabilization time, and better temperature control precision.
Main parameters of the coal spontaneous combustion indicator gas testing apparatus
1. Temperature control range: room temperature to 500°C
2. Heating rate: 0.5°C/min to 2°C/min
3. Temperature control precision: ±0.5°C
4. Flow control range: 0 ml/min to 200 ml/min
5. Display and control unit: touch-screen LCD operation
6. Dimensions: 550×600×1790 mm
7. Operating voltage and current
8. Rated operating voltage: 220 V
9. Rated power: 2.8 KW

Zhengzhou Aidi produces and supplies coal drill cuttings desorption instruments, deep hole sampling devices, pressure measuring instruments, geological exploration desorption instruments, borehole flow meters, mine gas extraction and outburst prevention equipment, coal true density measuring instruments, gas content measuring instruments, automatic initial gas emission speed measuring instruments, diffusion speed measuring instruments, and coal extraction pipeline gas parameter instruments.