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气力输送过程中炭黑粒子破碎率影响因素分析

Release time:2021-03-15 Hits:

Key Words:炭黑;;气力输送;;破碎率;;压碎强度

Abstract:分析气力输送过程中炭黑粒子破碎率的影响因素。炭黑品种及造粒方式、炭黑粒子压碎强度、输送距离、输送气速、输送方式、输送管道清扫对炭黑粒子破碎率的影响较大。综合考虑各方面因素,对气力输送系统优化提出建议:湿法造粒炭黑粒子破碎率明显小于干法造粒炭黑,应按造粒方式分别设定炭黑粒子破碎率指标,炭黑造粒应优选湿法造粒工艺;为了保证输送后炭黑粒子破碎率小于10%,炭黑粒子压碎强度应大于30 g,同时炭黑粒子压碎强度分布不宜过宽;在气力输送系统中采用比例调速阀,通过自动控制系统自动调节炭黑输送气速,以实现不同炭黑在最佳状态下输送;尽量减小管道清扫次数。

Volume:v.65

Issue:06

Translation or Not:no

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