Advanced process manipulation of magnesia sintering

Koštial, Imrich; Spišák, Jan; Mikula, Jan; Glocek, Jan; Nemčovský, P.; Terpák, Ján

doi:10.3182/20080706-5-kr-1001.00123

Cited by 14 publications

(3 citation statements)

References 2 publications

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“…Heat required for anthracite calcination is generated mainly by gas consumption, partially by coke and volatile substances burning. Rotary furnace works in countercurrent involvement [1]. Charged material is heated following humidity reduction and low temperature pyrolysis start.…”

Section: Introductionmentioning

confidence: 99%

Preheater for Anthracite Carbonization in Rotary Furnaces

Spišák

Vanko

Kerekanic

et al. 2015

AMM

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Coke production is carried out by coal carbonization. The most frequently used coal is anthracite, which features a very low content of volatile substances that not exceed 7%. Current anthracite production is carried out in rotary furnaces, consists of processes as follows: drying, heating, pyrolysis and calcination. Coke cooling is performed in cooling device located at the end of the furnace. To enhance the performance and reduce the specific heat consumption, use of the preheating device for rotary charge was proposed. The charge granulometry allows using the preheating device based on thin layer principle. Proposed solution was verified by simulations.

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Section: Introductionmentioning

confidence: 99%

Preheater for Anthracite Carbonization in Rotary Furnaces

Spišák

Vanko

Kerekanic

et al. 2015

AMM

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“…During the heat treatment part of the useful heat forms accumulated heat of the heated material. The recovery in the combustion process is generally carried out by heating the cooling -secondary air and burning [1].…”

Section: Introductionmentioning

confidence: 99%

Burners for Rotary Furnace - Proposal and Comparison

Spišák

Nascak

Vanko

et al. 2015

AMM

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In the paper are presented the possibility of using axial and radial diffusion burner in rotary furnace. Both types of burners allow secondary air combustion, combustion quality measure is the ratio of primary and secondary flame. Experimental comparison of both types of burners has been performed with the high-revolution rotary furnace. On this basis, benefits have been identified and their use possibilities.

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“…This process also changes the structure and microstructure of the blend materials [3]. To achieve the final thermal conductivity and mechanical properties, the effects of two sintering factors: sintering temperature and the mixing powders of Al 2 O 3 and MgO were studied [3][4]. Thus, this research is being done in order to determine the desired heat sink which involves optimization set of factors that would maximize the final thermal conductivity and mechanical properties such as flexural strength, elastic modulus, shrinkage and density.…”

Section: Introductionmentioning

confidence: 99%

Magnesite Effect to the Alumina Sintering for Heat Sink Application

Nor

Ismail

Kasim

et al. 2013

AMM

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In the modern world with an extensive improvement of science and technologies, alumina (Al2O3) ceramics have been identified as one of the usable materials in production of electronic components. This project attempts to investigate the magnesite (MgCO3) effect to Al2O3 sintering for heat sink application. The effect of MgO percentage varying from 0% to 50% has been in investigated, emphasizing on the flexural strength test, thermal conductivity test, elastic modulus test, shrinkage percentage and density measurement. The result revealed that the MgO give an effect to the final thermal conductivity and mechanical properties of Al2O3 material at high sintering temperature (i.e. at temperature of 1600°C). Throughout an X-ray diffraction (XRD) analysis of Al2O3 and MgO compositions, it was revealed that spinel, periclase and corundum phases exist for all sintered temperature which contributes to strengthen grain boundaries and improved mechanical properties.

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Advanced process manipulation of magnesia sintering

Cited by 14 publications

References 2 publications

Preheater for Anthracite Carbonization in Rotary Furnaces

Preheater for Anthracite Carbonization in Rotary Furnaces

Burners for Rotary Furnace - Proposal and Comparison

Magnesite Effect to the Alumina Sintering for Heat Sink Application

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