scholarly journals Development of Technology Ferrous Metal Melting Furnace Ancient Times in Indonesia

KALPATARU ◽  
2021 ◽  
Vol 30 (2) ◽  
pp. 141-152
Author(s):  
Harry Octavianus Sofian
Keyword(s):  
Blast Furnace ◽  
Induction Furnace ◽  
Ferrous Metal ◽  
Melting Furnace ◽  
Smelting Furnace ◽  
Library Research ◽  
High Temperature Processes ◽  
Furnace Technology ◽  
Ancient Times ◽  
Metal Melting

Abstract. Technological knowledge of the use of metals is inseparable from human knowledge in the processing pyrotechnics of fire as a power in high temperature processes for producing objects. The fire is used for smelting and casting in melting furnaces. Metal smelting furnace is a heat production device, which is used to purify the metal, in this case iron. This paper aims to determine the development of ferrous metal smelting furnace technology in Indonesia with the library research method from the results of previous studies. Based on the results of the analysis, there are four technologies for smelting iron, namely pit kiln, bloomery furnace, blast furnace, and induction furnace. Of the four technologies, three are in use in Indonesia, namely bloomery furnace, blast furnace, and induction furnace.

A thermodynamic investigation into reactive-metal melting-furnace explosions

JOM ◽  
2005 ◽  
Vol 57 (10) ◽  
pp. 49-52 ◽  
Author(s):  
Steven C. Evans ◽  
David F. McLaughlin
Keyword(s):  
Melting Furnace ◽  
Thermodynamic Investigation ◽  
Reactive Metal ◽  
Metal Melting

Recent Developments in zinc blast-furnace technology

JOM ◽  
1964 ◽  
Vol 16 (1) ◽  
pp. 33-36 ◽  
Author(s):  
S. W. K. Morgan
Keyword(s):  
Blast Furnace ◽  
Recent Developments ◽  
Furnace Technology

scholarly journals Decline in Nature: an Intertextual Study

2019 ◽  
Vol 3 (2) ◽  
pp. 70
Author(s):  
Yunanda Aprilliani Wijono
Keyword(s):  
Library Research ◽  
The Future ◽  
Figure Of Speech ◽  
Ancient Times ◽  
Human And Nature

Human and nature had been living side by side and help each other since ancient times. However, the current condition of nature had pushed other humans to be aware that this ‘side by side living’ had not only been advantageous but also exploited. This is recorded by humans through literacy; starting from poems. However, these records did not only contain history but also expressions of poets and authors alike; their perspective of nature they see in their existence and or, perhaps, their hope or view of the future of nature. To find whether a work conveys life through nature or whether it conveys nature from different aspects of life, a study is needed. This writing aims to interpret the nature represented in William Blake’s The Tyger and Gordon J. L. Ramel’s Tiger, Tiger Revisited. The method used is library research and the approach used in intertextuality by focusing on the human-wildlife relationship over the years both poems were written. The results show that these poems are similar in their nature as poems. However, their idea of nature contradicts each other in the use of the figure of speech. Nature had changed drastically over the years these poems are made, and those changes are conveyed within the two poems.

Time Estimate for the Incipient Surface Melting of Regular-Shaped Metals Receiving Uniform Heat Flux Inside a Metal Melting Furnace

2015 ◽  
Vol 8 (2) ◽  
Author(s):  
Marcelo D. Marucho ◽  
Antonio Campo ◽  
N. Ben Cheikh
Keyword(s):  
Heat Flux ◽  
Heat Conduction ◽  
Melting Furnace ◽  
Continuous Heating ◽  
Uniform Heat Flux ◽  
Large Plate ◽  
Time Solution ◽  
Uniform Heat ◽  
Metal Melting ◽  
Long Cylinder

This article addresses the continuous heating of regular-shaped metals (large plate, long cylinder, and sphere) at ambient temperature placed in a metal melting furnace. Under the assumption of temperature-independent thermophysical properties of the metal, the heat conduction problem entails to unsteady one-dimensional (1D) heat conduction with a boundary condition of uniform heat flux. Based on the exact, analytic spatiotemporal temperature distributions for the regular-shaped metals, the objective of this study is to construct simple predictive formulas so that engineers can estimate the incipient melting of these metals when heated continually. The time at which melting at the metal surface is initiated, tmelt, corresponds to setting the surface temperature, Tsur, equal to the melting temperature, Tmelt. The analysis will be done under the premises of two asymptotic solutions: one a “large-time” solution and the other a “short-time” solution. A collection of six formulas of simple form for predicting the melting time, tmelt, will be developed for those regular-shaped metals (large plate, long cylinder, and sphere).

Research and Development of Mineral Wool Production with High Temperature Industrial Residual Materials

2013 ◽  
Vol 743-744 ◽  
pp. 301-305
Author(s):  
Guo Chao Qi ◽  
Feng Jun Shan ◽  
Qu Kai Zhang
Keyword(s):  
Blast Furnace ◽  
High Temperature ◽  
Energy Conservation ◽  
Solid Waste ◽  
Blast Furnace Slag ◽  
Ferrous Metal ◽  
Mineral Wool ◽  
Insulation Material ◽  
Wool Production ◽  
Furnace Slag

Mineral wool is a type of important material for basic infrastructure development and national economy. It is widely used as insulation material in construction industries. Some high temperature industrial solid waste materials, such as blast furnace slag, cyclone slag and some metal slag, after composition adjusting and reheating, can be directly used to produce mineral wool. The recycle of residual heat in the hot solid wastes can decrease the cost of mineral wool and is beneficial for energy conservation, environmental protection and social sustainable development. The development and technical characteristics of mineral wool production with blast furnace slag, cyclone slag and some non-ferrous metal slag have been analyzed in this paper, and the energy conservation technique in managing high temperature solid waste has been also discussed.

Evaluation on chemical stability of lead blast furnace (LBF) and imperial smelting furnace (ISF) slags

2016 ◽  
Vol 180 ◽  
pp. 310-323 ◽  
Author(s):  
Nang-Htay Yin ◽  
Yann Sivry ◽  
François Guyot ◽  
Piet N.L. Lens ◽  
Eric D. van Hullebusch
Keyword(s):  
Blast Furnace ◽  
Chemical Stability ◽  
Smelting Furnace ◽  
Lead Blast Furnace ◽  
Imperial Smelting Furnace ◽  
Lead Blast

Mathematical Model of Forecasting the Iron Ore Materials and Coke Quality Indicators

2011 ◽  
Vol 312-315 ◽  
pp. 1198-1203 ◽  
Author(s):  
A.N. Dmitriev ◽  
Yu.A. Chesnokov ◽  
G.Yu. Arzhadeeva ◽  
Yu.P. Lazebnaya
Keyword(s):  
Mathematical Model ◽  
Blast Furnace ◽  
Quality Indicators ◽  
Iron Ore ◽  
Coke Quality ◽  
Raw Materials ◽  
Blast Furnace Smelting ◽  
Furnace Technology ◽  
Furnace Smelting

The iron ore raw materials and coke quality is the basic reserve of improvement of blast furnace technology. Some of the quality indicators of iron ore raw materials and coke and their influence on the main parameters of the blast furnace smelting are considered in this paper.

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