Improvement and application of the ZXF dynamic and static combined rotating classifier

ZHAO Jianguo Power Machinery Research Institute

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Improvement and application of the ZXF dynamic and static combined rotating classifier

Thermal Power Generation Vol. 42, Issue 6, Pages: 88-91(2013)

更新时间：2025-09-28

- Improvement and application of the ZXF dynamic and static combined rotating classifier
- 作者机构：
  
  北京电力设备总厂
- 作者简介：
- 基金信息：
- DOI：
  CLC： TK223.25
- Published：2013
- 稿件说明：
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ZHAO Jianguo Power Machinery Research Institute. Improvement and application of the ZXF dynamic and static combined rotating classifier[J]. Thermal Power Generation, 2013, 42(6): 88-91.
DOI：

ZHAO Jianguo Power Machinery Research Institute. Improvement and application of the ZXF dynamic and static combined rotating classifier[J]. Thermal Power Generation, 2013, 42(6): 88-91. DOI：

摘要

介绍了ZXF旋转分离器的结构和工作原理

并将浙江宁波北仑发电有限公司(北仑电厂)MBF-23型磨煤机采用的静态挡板式分离器改造为ZXF动静组合式煤粉旋转分离器。对比分离器改造前、后的试验数据可见

增大给煤量会使静态分离器出口煤粉细度变粗

ZXF旋转分离器出口煤粉细度变细

旋转分离器对煤粉细度的调解作用较明显;旋转分离器出口煤粉的均匀性比静态分离器有较大改善;煤粉细度R75为22.2%时

磨煤机制粉电耗量为7.28(kW.h)/t

比改造前减小0.5(kW.h)/t

节能效果显著。

Abstract

The structure and working principle of ZXF rotating classifier was described.The static baffle separator applied on MBF-23 type coal mill was retrofitted to the ZXF rotating classifier.Experiments were conducted before and after the improvement.The results showed that

increasing the coal quantity

the coal fineness at outlet of the static separator would be larger and that at the ZXF rotating classifier outlet would be smaller

indicating the rotating classifier had more obvious regulating effect on coal fineness.The uniformity of pulverized coal was dramatically improved.When the coal fineness R75 was 22.2%

the electric consumption of retrofitted coal pulverizer was obviously reduced by 0.5(kW·h)/t

which was 7.28(kW·h)/t.

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