Effect of Blow Tank Type and Powder Properties on Dense Phase Pneumatic Conveying Characteristics of Two Fuel Powders at High Pressure

Guiling Xu; Cai Liang; Xiaoping Chen; Daoyin Liu; Pan Xu; Gaoyang Yuan; Liu Shen; Changsui Zhao

doi:10.1252/jcej.13we114

Transport Phenomena and Fluid Engineering

Effect of Blow Tank Type and Powder Properties on Dense Phase Pneumatic Conveying Characteristics of Two Fuel Powders at High Pressure

Guiling Xu, Cai Liang, Xiaoping Chen, Daoyin Liu, Pan Xu, Gaoyang Yuan, Liu Shen, Changsui Zhao

Author information

Guiling Xu
Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, School of Energy and Environment, Southeast University
Cai Liang
Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, School of Energy and Environment, Southeast University
Xiaoping Chen
Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, School of Energy and Environment, Southeast University
Daoyin Liu
Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, School of Energy and Environment, Southeast University
Pan Xu
Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, School of Energy and Environment, Southeast University
Gaoyang Yuan
Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, School of Energy and Environment, Southeast University
Liu Shen
Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, School of Energy and Environment, Southeast University
Changsui Zhao
Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, School of Energy and Environment, Southeast University

Keywords: Blow Tank Type, Pneumatic Conveying, Fuel Powders, High Pressure, Conveying Capacity, Conveying Stability, Power Consumption

JOURNAL RESTRICTED ACCESS

2013 Volume 46 Issue 10 Pages 649-658

DOI https://doi.org/10.1252/jcej.13we114

Details

Abstract

Experiments of dense-phase pneumatic conveying of two fuel powders (Jinling petroleum coke and Huaibei anthracite coal) using nitrogen were carried out in an experimental facility including top-discharge and bottom-discharge blow tanks with design pressure up to 6.4 MPa. Petroleum coke and anthracite coal, which are widely used as attractive feed stocks for gasification, were chosen as conveying materials. The effect of blow tank type and powder properties on conveying characteristics at high pressure were investigated. Meanwhile, comparisons of conveying capacity, conveying stability and power consumption between these two kinds of blow tanks and the two fuel powders were made. The results indicate that the top-discharge blow tank has higher conveying capacity and better conveying stability, while the bottom-discharge blow tank has higher solid–gas ratio and lower power consumption. The anthracite coal has higher material mass flow rate and better conveying stability than petroleum coke due to its better flowability.

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