As the saying goes“It’s hard for a clever woman to make a meal without rice”, without good fuel coal, it is delusional to produce high-quality gas with high efficiency. Coal quality is the prerequisite for gas production efficiency and normal production of gas generators. However, due to the limitations of fuel procurement and supply, the geographical location of the enterprise, and the nature of the enterprise, the quality of the gasification coal purchased into the factory often lags behind the gasification coal standards, such as: particle size, moisture, ash, volatile matter, fixed carbon, and physical and chemical indicators. Therefore, we need to conduct a series of quality controls on the coal used in gas generators to ensure the quality of coal used. Below we analyze the intrinsic quality and extrinsic quality of the coal used in the gas generator http://www.cngrjx.com respectively.

       First of all, the coal purchased into the factory must meet the coal gasifier standards. The ash melting point must be greater than 1250°C, the mechanical strength and thermal stability must be greater than 60%, it must have good gasification reaction activity, the adhesiveness of coal is weak, the free expansion coefficient F, S, I ≤ 2, and the sulfur content must be Less than 0.2% etc.

       Secondly, the coal used in the gas generator needs to be pretreated. The raw coal should be crushed and screened, and the qualified coal should be classified and then stored in a rainproof coal shed. You can also design an automated assembly line for crushing, grading, and coal loading to reduce labor intensity. In order to improve the utilization rate of coal, the particle size of coal used in the two-stage furnace is generally between 30-80mm, and the smaller the coal dust content, the better.

       Only by ensuring the external quality of gasification coal——Uniform particle size, intrinsic quality——Only when the physical and chemical indicators meet the gasification conditions can it be ensured that the gas generator furnace condition is stable, the gas output, gas quality and gas calorific value are high, and the carbon content of the slag is low. This is conducive to the economical, continuous and stable operation of the gas generator.