According to the needs of users, a single or multiple sets of single-stage gas generators and associated supporting purification equipment forms a cold gas station. General cold gas stations include single-stage gas generators, double vertical tubes, electric tar craters, electric lighters, scrubbers, drop traps, desulfurization towers, gas blowers (inverter), and gas presses (inverter ) Isolation water jackets, etc. (see process flow chart). For anthracite. The gas is of good quality and is suitable for conventional burners or regenerative burners.