Industrial test of dense phase conveying of pulverized coal at high pressure

CHEN Zhi1; 2; XU Shisen2; LIU Gang2; REN Yongqiang2; XIA Juncang2; LI Guangyu2

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Industrial test of dense phase conveying of pulverized coal at high pressure

更新时间：2025-09-28

- Industrial test of dense phase conveying of pulverized coal at high pressure
- Thermal Power Generation Vol. 42, Issue 5, Pages: 42-45(2013)
- 作者机构：
  
  1. 西安热工研究院有限公司
  2. 华能清洁能源技术研究院有限公司
- 作者简介：
- 基金信息：
- DOI：
  CLC： TQ545
- Published：2013
- 稿件说明：
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CHEN Zhi1, 2, XU Shisen2, et al. Industrial test of dense phase conveying of pulverized coal at high pressure[J]. Thermal power generation, 2013, 42(5): 42-45.
DOI：

CHEN Zhi1, 2, XU Shisen2, et al. Industrial test of dense phase conveying of pulverized coal at high pressure[J]. Thermal power generation, 2013, 42(5): 42-45. DOI：

摘要

对新型煤粉加压密相输送系统进行了试验研究

考察了该系统输送的稳定性

分析了输送压力对煤粉质量流量、固气比和压降等输送参数的影响。结果表明:随着输送压力的提高

煤粉质量流量和输送氮气质量流量均增大

但氮气质量流量的相对增量更大

固气比随输送压力的增大而降低

试验获得的固气比为8.4～18.6kg/kg;单位管长压降普遍存在波动

且随煤粉质量流量的增加而增大

但其值均小于2.4kPa/m。

Abstract

The industrial test of dense phase conveying of pulverized coal was presented.The transport stability and the effects of transport pressure on such factors as solid mass flow rate

solid/gas mass flow ratio and pressure drop were also investigated.The results showed that

with an increase in delivery pressure

the mass flow rate of pulverized coal and transport gas(N2) both increased

among which the relative increment of the N2 flow rate were higher.However

the solid/gas flow ratio decreased when the total pressure increased

it reached 8.4-18.6 kg/kg in the experiment.The pressure drop per unit length fluctuated

and increased with the coal mass flow rate

but the value was always below 2.4 kPa/m.

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