In burning the anthracite, secondary air rate is less than 10 %.

燃烧混煤的在20%左右;对于燃烧无烟煤, 二次风率应小于10%.

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Secondary air tuyere: aluminum alloy shutter, the surface was electro - sprayed by epoxy resin.

补风口: 采用铝合金百叶窗, 表面环氧树脂喷涂.

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Poor secondary air balance worsens burner performance.

二次风分布不均匀使得燃烧器性能恶化.

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Another problem can occur rarely if backflow of process gas is permitted into secondary air line.

如果工艺气体回流入二段空气管线,能发生另外的很少发生的问题.

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