

GC-4085B Mine gas multi-point parameter chromatography automatic analyzer
The GC-4085B is a national key scientific and technological research project. It has the structural characteristics of separate temperature control for two columns, parallel simultaneous injection of three columns, and interchangeability between dedicated chromatographic columns and various detectors. It can also be connected to the gas sampling tubes of channels 1 to 32 underground. The automatic round-robin sampling, pre-cutting, detection of samples, automatic alarm for gas content exceeding the limit and report printing are realized through microcomputer control and data processing workstations. Realize the automatic analysis of gases during the oxidation and spontaneous combustion process of coal seams in real time, and improve the accuracy of early prediction and forecast of spontaneous combustion. Measure the changes in the concentration of gas components in a sealed fire area to determine the degree of extinguishing of the sealed fire area. It complies with the standard of "AQ/T 1019-2006 Chromatographic Analysis and Index Optimization Method of Marker Gases for Coal Seam Spontaneous Combustion".