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铁路蒸汽机车锅炉的特点:炉身短,燃烧强度大,排出烟气温度高,锅炉本身热效率很低。机车热效率低,除了锅炉设备本身外,供煤粒度和品种都有直接的关系,如果能给机车供应具有一定块度而灰份较低的烟煤,肯定会提高机车锅炉热效率,节约煤炭。六十年代铁道科学研究院和煤炭研究院曾用成型煤球做过多次试验,实践证明,铁路蒸汽机车由原煤或混煤改烧粒度均匀的沥青煤球,不仅可以节约煤炭20～30％,而且提高了机车的牵引力。我国每年机车用煤2,600多万吨,如果全部改烧
Railway steam locomotive boiler features: short body, burning intensity, exhaust gas temperature is high, the boiler itself is very low thermal efficiency. Locomotives have low thermal efficiency. In addition to the boiler equipment itself, the particle size and variety of coal supply have a direct relationship. Providing bituminous coal with a certain degree of lignite and low ash content to locomotives certainly increases the thermal efficiency of locomotive boilers and saves coal. In the 1960s, the Academy of Railway Sciences and the Coal Research Institute used to make briquettes for many tests. Practice has proved that it is not only possible to save 20-30% of the coal by cutting coal briquettes from bituminous briquettes of coal with uniform grain size, Increased locomotive traction. More than 2,600 tons of locomotive coal each year in our country, if all burn