Gas generators can be divided into different types according to their gas production technology and the quality of the gas they produce, such as single-stage gas generators, two-stage gas generators, double-stage thermal detarding gas generators, etc. Double-stage gas generator, which can also be called a two-stage gas generator, is a type of gas generator. It generally has two outlets, an upper section and a lower section. Because it adds a carbonization stage at a suitable place, the coal can be carbonized at low temperature, so that the tar produced later will not crack and has better fluidity. Moreover, during the long-distance transportation of hot gas, it is not easy to cause pipe blockage.
        Two-stage gas generatorThe working principle is that when coal enters the coal furnace from the top through two coal valves, the coal will be fully dried and retorted during the carbonization stage, so that it becomes coke, and then enters the gasification stage, allowing the coke-filled coal gasification section and the gasification agent at the bottom to chemically react, and then vaporize through the reduction layer and oxide layer inside the coal furnace, and then the cinder is automatically removed by the fence drive.