Type selection of coal pulverizing system for 660MW coal-fired boiler burning semi-coke

LIU Jiali; YAO Wei; WANG Guifang; YANG Zhongcan; WANG Zhichao; FANG Shunli

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Type selection of coal pulverizing system for 660MW coal-fired boiler burning semi-coke

更新时间：2025-09-28

- Type selection of coal pulverizing system for 660MW coal-fired boiler burning semi-coke
- Thermal Power Generation Vol. 45, Issue 11, Pages: 75-81(2016)
- 作者机构：
  
  西安热工研究院有限公司
- 作者简介：
- 基金信息：
- DOI：
  CLC： TK229.63
- Published：2016
- 稿件说明：
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LIU Jiali, YAO Wei, WANG Guifang, et al. Type selection of coal pulverizing system for 660MW coal-fired boiler burning semi-coke[J]. Thermal power generation, 2016, 45(11): 75-81.
DOI：

LIU Jiali, YAO Wei, WANG Guifang, et al. Type selection of coal pulverizing system for 660MW coal-fired boiler burning semi-coke[J]. Thermal power generation, 2016, 45(11): 75-81. DOI：

摘要

半焦作为一种新型的锅炉燃料

其研磨和磨损特性与常规煤种存在较大不同

仅靠理论计算无法满足半焦磨煤机合理选型的要求。本文利用小型半工业性钢球磨煤机试验台

对半焦在钢球磨煤机上的研磨出力、煤粉细度、制粉电耗进行了试验研究

并根据试验结果对纯燃用半焦的超超临界660 MW机组锅炉制粉系统设备进行选型。结果表明:半焦具有热值高、挥发分低、难磨、磨损性强等特点

磨煤机应选择双进双出钢球磨煤机

选取耐磨能力较强钢球及磨煤机衬板;半焦在钢球磨煤机上的实际研磨出力低于理论计算值

建议选用稍大型号磨煤机。

Abstract

As a new boiler fuel

semi-coke has dramatic difference on grinding and abrasiveness property form the commonly burned coals

and the type selection of semi-coke mill can't be fulfilled just by theoretical calculation.To solve this problem

this paper experimentally investigated the grinding properties of the semi-coke

such as the grinding output

coal fineness and milling consumption

on a small scale semi-industrial ball mill.According to the test results

type selection for an ultra supercritical 660 MW coal-fired unit boiler burning pure semi-coke was performed.The results show that

the actual milling output of the ball mill grinding semi-coke is lower than the theoretical value

this conclusion can provide references for combustion and co-firing of semi-coke in coal-fired boilers.

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