The drying and preheating section of a single-stage gas generator is one of the important links in the gas generation process. In the drying preheating section, the raw coal first enters the furnace from the top of the furnace, and then is slowly heated by the internal temperature and begins to dry. This stage is mainly to prepare for the carbonization of coal and improve the dryness and pyrolysis activity properties of coal.
In the drying preheating section, the temperature in the furnace gradually increases, and the raw coal is heated and dried. At the same time, some low-volatile substances begin to evaporate from the coal, forming coal tar and other substances. These substances can be collected and used as chemical feedstock or fuel.
The operating conditions of the drying preheating section are
Single stage gas generatorhas an important impact on performance. In the drying preheating section, the temperature and pressure in the furnace must be well controlled so that the raw coal can be fully dried and pyrolyzed. At the same time, care should be taken to avoid problems such as coking or incomplete combustion in the furnace.
In the equipment, the drying preheating section is usually located in the upper part of the furnace body, separate from the redox section. This design is conducive to controlling the temperature and pressure of the drying preheating section to ensure the drying and pyrolysis effects of raw coal.
In short, the drying and preheating section of a single-stage gas generator is one of the important links in the gas generation process. It can improve the dryness and pyrolysis activity of raw coal and provide good conditions for subsequent redox reactions. In actual operation, attention needs to be paid to controlling the temperature and pressure in the furnace to avoid problems such as coking or incomplete combustion.
