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[{" 煤浆粒度与二氧化碳关系", "煤浆粒度度细特别是<3目<4目<3目<3目4目<3目<8目3目4目3目4目3目4目3目3目4目33目4目33CO23目 pérdida煤浆粒度与二氧化碳关系"}

2017-08-28View Original

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煤浆粒度过细特别是<325目是指标的一倍,此时气体成分二氧化碳是如何变化的。换句话说粒度对气体成分有什么影响。
Reply #22017-08-28
煤浆目数8/14/40/200/325是有比例的。 换句话说,气体成分在操作压力,温度,负荷,煤种一定的情况下。气体成分和雾化、浆质量有关。目数越大颗粒越细,理论上是越细反应速度越快,其原理是反应比表面积大,但是越细煤浆的运输越困难,管道阻力大,压力降大,到达烧嘴的压力就越小,雾化后的颗粒反而越大;同时煤颗粒细组分多,粘度也大,雾化也越困难,雾化颗粒大。 颗粒大,煤浆质量不稳定,易分层,对煤浆泵、管道,特别烧嘴的损坏大。整体来说气体成分超差,CO2偏高。 C+O2=CO2 CO2+C=2CO CO2生成量基本没变,但是CO2消耗量减少

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