The two-stage gas generator uses a high ash basin water seal and operates at high gasification pressure. The generator has a high degree of gasification and a large gas production. The grate drives ash removal and coal loading using a hydraulic system to achieve automatic control. The water jacket is a pressure vessel with a very long service life. Self-produced steam meets production needs.
       Gas desulfurization and denitrification is a boiler flue gas purification technology used in the chemical industry that generates polynitrogen oxides and sulfur oxides. Nitrogen oxides and sulfur oxides are one of the main sources of air pollution. Therefore, the application of this technology has many benefits for environmental air purification. Currently known gas desulfurization and denitrification technologies include PAFP, ACFP, pyrolusite method, electron beam ammonia method, pulse corona method, gypsum wet method, catalytic oxidation method, microbial degradation method and other technologies.
       The carbon content of the ash and slag of gas generators is mostly maintained at about 10-15%. However, due to backward equipment and technology, the carbon content of ash and slag of some gas generators is sometimes higher than 20%, which cannot allow incomplete combustion. We always keep the oxygen content at the standard value, improve the gasifier structure and gasification process, optimize operating indicators, and reduce the carbon content of ash and slag, which is an effective way to reduce the energy consumption of gas generators. Reducing operational errors caused by human factors also saves energy in gas generating stations, and uses oxygen-enriched oxidation and other processes to increase the calorific value of gas.
       The blockage of gas pipes is caused by the dust in the gas and the condensation of tar mixed and deposited in the gas pipes. The problem of gas pipeline blockage in the two-stage gas generator must be comprehensively solved based on the blockage mechanism, starting from the equipment structure and operating methods. In order to prevent the lower section of the gas pipeline from being blocked, the coal material must be retorted in the retort section. This requires that the retort section of the two-stage gasifier has a reasonable structure, with sufficient height and coal-holding space, to ensure that the coal material has sufficient retort time before reaching the gasification section, so that the lower section gas contains as little tar as possible, thereby preventing the lower section gas pipeline from being blocked.
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