Dumps of a mining-metallurgical complex of post-Soviet Republics have accumulated a huge amount of technogenic waste products. Out of them, Kazakhstan alone has preserved about 20 billion tons. In the field of technogenic waste treatment, there is still no technical solution that leads it to be a profitable process. Recent global trends prompted scientists to focus on developing energy-saving a...

The purpose of this research was to analyze and compare the mechanical properties of parts made using both Direct Metal Laser Sintering (DMLS) and traditional manufacturing methods like casting or forging. Previous research in DMLS was conducted using various materials, but there has been very little done for 17-4PH stainless steel. All the samples used for testing were conducted using the EOSI...

The determination of the mechanical properties a brazed joint is an important factor to reach metallurgical level development. This paper evaluates properties, and its correlation with microstructure, W-CuCrZr in high vacuum furnace using 80Cu-20Ti flexible filler material tape form. meant be implemented divertor application future fusion power plants. Main experimental parameters were brazing ...

Abstract Accurately and continuously monitoring the hot metal temperature status of blast furnace (BF) is a challenging job. To solve this problem, we propose prediction model based on AdaBoost integrated algorithm using real production data BF. We cleaned raw analysis technology combined with metallurgical process theory, which mainly included integration, outliers elimination, missing value s...

Iron ore pellets are small and hard spherical particles agglomerated from a fine iron concentrate. They used in the blast furnace process to produce hot metal. The diameter of is usually between 8 16 mm. In this study, batch magnesia was first sieved into particle sizes 8–10 mm, 10–12.7 12.7–16 mm 16–20 four different size fractions were study effect pellet on metallurgical properties. experime...

Proper estimation of the metallurgical recovery is very important for the assessment of the economical value of a mining business. As this quantity is nonadditive, it is not possible to model its spatial variability or to perform its estimation directly. In the present work, we first recall that additivity can concern the intrinsic nature of point-support quantities, and not only the usual supp...

Deposits can affect the in-furnace wall surface temperature in a Kraft recovery furnace. In CFD (Computational Fluid Dynamics) models of the Kraft recovery furnace, the wall surface temperature is frequently used as the heat-transfer boundary condition. Therefore, the effect of deposits must be taken into account in CFD models. In this work, CFD simulations of a Kraft recovery furnace were perf...

The efficiency of the application of high-emissivity coatings on the furnace walls in steam cracking technology can only be evaluated on the asis of a description of radiative heat transfer distinguishing between the frequency bands. To this end, a non-grey gas radiation model based on he exponential wide band model (EWBM) has been developed and applied in the context of three-dimensional CFD s...

China is the world's largest steel producer, with Iron and Steel Association estimating that country's crude production in 2022 will be 935 million tonnes [Citation1]. In 2017, metallurgical slag output of iron enterprises reached more than 440 tons, including 247 tons blast furnace 101 converter [Citation2]. After accumulation recent years, current number waste huge. By 2020, total amount indu...

The construction sector is one of the most demanding sectors for materials that exist today. Therefore, in order to avoid extraction new raw materials, it necessary use waste. This waste must present a series physical and chemical characteristics make suitable its employment. this investigation, ladle furnace slag characterized as filler bituminous mixtures. These slags are produced by metallur...