Meanwhile, the relations between finenesses of coal_dust, temperatures of flue gas at boiler exit and fly ash erosion are studied.
同时，还研究了煤粉细度与炉膛出口烟温、飞灰磨损的关系，得出了一些有意义的结论。
Flue gas containing hard grain of fly ash flow relative to the wall, on the wall wear called impact wear, also known as erosion. erosion.
含有硬粒飞灰的烟气相对于管壁流动，对管壁产生磨损称为冲击磨损，也称冲蚀。冲蚀。
The results show that concrete with 40 percent fly ash has good properties of strength, resistance permeating of Cl-and resistance erosion of sulfate. Besides, it has a small shrinkage ratio.
试验结果表明，添加了40%以上粉煤灰的混凝土仍有较好的强度，较好的抗氯离子渗透、抗硫酸盐侵蚀等性能，且具有较小的体积收缩率。
The results show that concrete with 40 percent fly ash has good properties of strength, resistance permeating of Cl-and resistance erosion of sulfate. Besides, it has a small shrinkage ratio.
试验结果表明，添加了40%以上粉煤灰的混凝土仍有较好的强度，较好的抗氯离子渗透、抗硫酸盐侵蚀等性能，且具有较小的体积收缩率。
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