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Wanfeng gas furnace manufacturers to introduce gasification characteristics of coal
TIME:2017-1-9 9:53:36 | VIEW:
Two-stage gasifier suitable for coal gasification of non-stick coal, weakly sticky coal, long flame coal and other bituminous coal. Although the relative single-stage gasifier, the two-stage gas furnace for a wide range of coal, but the indicators of raw coal is still relatively stringent requirements. Technical index of raw coal for two - stage gasifier. Lump coal limit rate: lump coal is less than the lower limit of the specified part of the mass fraction. Thermal stability index TS +6: Take a certain amount of coal particle size of 6 ~ 13mm, (850 ± 15) ℃ in the muffle furnace insulation under the conditions of air heating 30min after weighing, screening, particle size is greater than 6mm of the quality of residual coke at all levels of the total size of the residual coke quality and the percentage. Crushing strength of a certain particle size of the coal sample after the free fall resistance to broken ability: the size of 60 ~ 100mm lump coal from 2m high free fall to a specified thickness of the steel plate, and then fall in the coal particle size greater than 25mm of lump coal fell again, a total of three times to break after the particle size of more than 25mm of lump coal coal mass fraction that coal crushing strength.
Compared with the strict requirements of coal gasifier in two-stage gasifier, the ash coalescence type fluidized bed gasifier is suitable for coal localization, which can realize the localization of raw coal. At present, the ash-melting fluidized bed gasifier has been metallurgical coke, Taiyuan Dongshan lean coal, Taiyuan Xishan coking coal, Taiyuan Wang Feng lean coal, Shaanxi Shenmu weak adhesion long flame coal, coking coal washing, Shaanxi Bin County bituminous coal, Wenshan lignite, Huolinhe lignite, Shanxi Jincheng anthracite, Shanxi Yangquan anthracite and petroleum coke gasification test, the cumulative test time of more than 5000h. Analysis Data of Partial Test Coal Type of Coal Ash in Ash - fusible Fluidized Bed Gasifier. Coke residue characteristics of the code that the greater the bond strength, 1 to 2 for the non-adhesive, 3 to 4 for the weak bond, 5 to 8 for the strong bond. The test results show that all the tested coal can achieve continuous gasification and gasification in the ash - agglomerating fluidized bed gasifier. But different coal gasification technology economic indicators and operating characteristics are slightly different, gasification system according to the specific coal to determine the corresponding operating parameters.
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