Real-time blast furnace hearth liquid level monitoring system

2016 ◽  
Vol 43 (7) ◽  
pp. 550-558 ◽  
Author(s):  
Ashish Agrawal ◽  
Swapnil C. Kor ◽  
Utpal Nandy ◽  
Abhik R. Choudhary ◽  
Vineet R. Tripathi
Metals ◽  
2018 ◽  
Vol 8 (9) ◽  
pp. 665 ◽  
Author(s):  
Ying Li ◽  
Lei Zan ◽  
Yao Ge ◽  
Han Wei ◽  
Zhenghao Zhang ◽  
...  

The state of a blast furnace hearth, especially the liquid level of hot metal and slag during the tapping process, is of crucial importance with respect to a long campaign blast furnace. In practice, the state of the hearth is evaluated mainly by the experience of operators. In this paper, the electromotive force (EMF) is used to monitor the liquid level of a laboratory scale of blast furnace hearth and the effect of liquid level, EMF sensors position and the thickness of refractory on EMF signals are tested using a single layer of water and double layers of water and oil. After laboratory experiments, the electromotive force (EMF) is used to monitor the liquid level of torpedo ladle successfully. Laboratory experimental results show that the change in liquid level can be characterized by EMF signal. The state of liquid surface and local thermal state cause the EMF signal to vary in the circumferential direction of the vessel. Furthermore, the EMF signal magnitude decreases with the decrease of the thickness of the graphite crucible. Finally, the main conclusions of the laboratory experiment are supported by the torpedo ladle experiment.


2017 ◽  
Vol 14 (2) ◽  
pp. 1286-1296 ◽  
Author(s):  
Flavio S. V. Gomes ◽  
Klaus F. Coco ◽  
Jose Leandro Felix Salles

2014 ◽  
Vol 670-671 ◽  
pp. 1274-1284 ◽  
Author(s):  
Andrey N. Dmitriev ◽  
Maxim O. Zolotykh ◽  
Yury A. Chesnokov ◽  
Kai Chen ◽  
Oleg Yu. Ivanov ◽  
...  

The monitoring system of the firebrick lining state of the blast furnace devil is offered. The mathematical description, algorithm and program of calculation the temperature fields in any vertical and horizontal cross-section of the devil lining are developed with use of the indications of the temperature sensing transducer (to 1000) in the oven lining. The systems of gathering, processing and information transfer from the temperature transmitters to a program database are used. This monitoring system is established on five blast furnaces of metallurgical plants of China.


2013 ◽  
Vol 46 (16) ◽  
pp. 294-301 ◽  
Author(s):  
Abdrey N. Dmitriev ◽  
Yury A. Chesnokov ◽  
Kai Chen ◽  
Oleg Yu. Ivanov ◽  
Maxim O. Zolotykh

2010 ◽  
Vol 41 (4) ◽  
pp. 876-885 ◽  
Author(s):  
Bao-Yu Guo ◽  
Paul Zulli ◽  
Daniel Maldonado ◽  
Ai-Bing Yu

Sign in / Sign up

Export Citation Format

Share Document