Study on Resistance Characteristics of Embedded Counterflow Column Type Wind Caps in Suspension Roaster

WANG Yitong; GAO Peng; TANG Zhidong

doi:10.13779/j.cnki.issn1001-0076.2023.03.008

2023 Vol. 43, No. 3

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Article navigation > Conservation and Utilization of Mineral Resources > 2023 > 43(3): 75-81

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WANG Yitong, GAO Peng, TANG Zhidong. Study on Resistance Characteristics of Embedded Counterflow Column Type Wind Caps in Suspension Roaster[J]. Conservation and Utilization of Mineral Resources, 2023, 43(3): 75-81. doi: 10.13779/j.cnki.issn1001-0076.2023.03.008

Citation:

WANG Yitong, GAO Peng, TANG Zhidong. Study on Resistance Characteristics of Embedded Counterflow Column Type Wind Caps in Suspension Roaster[J]. Conservation and Utilization of Mineral Resources, 2023, 43(3): 75-81. doi: 10.13779/j.cnki.issn1001-0076.2023.03.008

Study on Resistance Characteristics of Embedded Counterflow Column Type Wind Caps in Suspension Roaster

1.
School of Resources and Civil Engineering, Northeastern University, Shenyang 110819, China
2.
National-local Joint Engineering Research Center of High-efficient Exploitation Technology for Refractory Iron Ore Resources, Shenyang 110819, China
3.
State Key Laboratory of Rolling and Automation, Northeastern University, Shenyang 110819, China

More Information

Corresponding author: GAO Peng

Received Date: 25 April 2023

Publish Date: 15 June 2023

Abstract

Abstract

The resistance characteristics of the inline counterflow column type wind caps during the operation of suspension roaster was systematically investigated based on the bed pressure drop-air flow method. The influences of air flow and numbers of small holes in the core cap tube on the resistance characteristics of the air distribution device with embedded counter-current column type wind caps were explored by cold tests, and the resistance characteristics of the embedded counter-current column type wind caps under different temperature conditions were deduced according to similar theory. The results showed that the resistance of the air distribution device with embedded counterflow column type wind caps decreased with the increase of the number of wind caps and the number of small holes of the wind cap core tube. The critical airflow increased with the increase of ore particle size while having a small influence on the ore bed height. The research results provide theoretical and data support for the design and optimization of operating parameters in the industrial production of suspension roasting.
- suspension roaster /
- embedded counterflow column type wind cap /
- resistance characteristics /
- critical fluidization speed

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References

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