Browsing by Subject "blast furnace"

Now showing 1 - 4 of 4

Access status: Open Access ,
Evolutionary data driven modelling and many objective optimization of non linear noisy data in the blast furnace iron making process
(Wydawnictwa AGH, 2021) Mahanta, Bashista Kumar; Chakraborti, Nirupam
The optimization of process parameters in modern blast furnace operation, where both control and accessing large data set with multiple variables and objectives is a challenging task. To handle such non-linear and noisy data set deep learning techniques have been used in recent time. In this study an evolutionary deep neural network algorithm (EvoDN2) has been applied to derive a data driven model for blast furnace. The optimal front generated from deep neural network is compared against the optimal models developed from bi-objective genetic programming algorithm (BioGP) and evolutionary neural network (EvoNN). The optimization process is applied to all the training models by using constraint based reference vector evolutionary algorithm (cRVEA).
Access status: Open Access ,
Mechanisms knowledge of the flow and wear in the blast furnace crucible with the nodal wear model
(2011) González, Roberto; Barbés, Miguel A; Verdeja González, Luis Felipe; Duarte, Rámon M; Karbowniczek, Mirosław; Migas, Piotr; Ruiz Bustinza, Iñigo; Mochón Muñoz, Javier
The presence of thermocouples in the lining of crucibles has become a general practice in the new construction of blast furnaces. The Nodal Wear Model (NWM) has also emerged as an instrument that, while using experimental data, obtains nodal variables whose experimental measurement is not possible: global coefficient of pig-iron/refractory heat transfer [formula] and nodal temperature Ti. Starting from these nodal properties, the wear of the lining or the growth of scabs may be controlled, independently of the mechanisms responsible for them. In the same way, the properties and influence zone of the dead man in the hearth of the blast furnace may be calculated, along with those regions where the fluid is allowed to move without any other restrictions than the ones of the corresponding viscous flow (raceway hearth region).
Access status: Restricted ,
Obliczenie kraty regeneratorów pieca martenowskiego
(Zakład Metalurgii Żelaza Akademii Górniczej, 1935) Ludkiewicz, Adam
Access status: Open Access ,
Thermal degradation of waste polyolefines and their application in blast-furnace process
(2006) Kuźnia, Monika; Magdziarz, Aneta
Nowadays about 60% of world production and consumption of plastics are polyolefines. They are used as packaging, in building engineering, automotive industry or electronic engineering. High calorific value and proper Chemical composition of polyolefines (based on carbon and hydrogen) make them ideal for use in a wide range of applications. The polyolefines can be used as a substitute for coke in blast-furnace processes. This paper outlines thermal decomposition of PE-LD, PE-HD, PP which are used in agriculture and packaging from household. Thermogravimetry (TG) and Differential Scanning Calorimetry (DSC) were used as analytical methods.