Assessing coal concentrate by means of an Audibert-Arnu dilatometer

Bulanov, E. A.; Krutenkov, V. G.; Shilyakov, A. V.

doi:10.3103/s1068364x0909004x

Cited by 3 publications

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“…The different techniques for studying the various phenomena of carbonization were proposed. The best known measuring techniques in carbonization research are with small mass coals under homogeneous heating, briefly including the thermogravimetric analyzer for studying the decomposition, − the standard Gieseler plastometer, − the standard Audibert–Arnu dilatation test − for deriving the plasticity, under unidirectional heating as in a coke oven, including the standard Sapozhnikov plastometer − for determining the thickness of the plastic layer and expansion, and after shrinkage of coal, the patented Koppers–INCAR test − for determining the expansion and contraction of coal.…”

Section: Introductionmentioning

confidence: 99%

Relevance between Various Phenomena during Coking Coal Carbonization. Part 1: A New Testing Method Developed on a Sapozhnikov Plastometer

et al. 2018

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A method for studying the relevance between the various phenomena during coking coal carbonization has been wistfully developed because the occurrence of the gas–liquid–solid phase makes the measurement very complicated. A thermogravimetry–plastometer–swelling pressure (TG–P–SP) apparatus was developed on a standard Sapozhnikov plastometer for simultaneously measuring not only the thickness of plastic layer but also the swelling pressure of plastic layer and its expansion effect on coal charge as well as volatile matter escaping. TG–P–SP employs an electronic balance and a Sapozhnikov plastometer, which is located on an electronic balance, with a pneumatic-loaded cylinder, linear displacement transducer, and pressure sensor. The characteristics and advantages of this method are able to give some information on the initial states of various phenomena of carbonization and pictures of complexity- and uncertainty-related behaviors in the carbonization process for coals with various rank and plasticity. These may have an important role in revealing the carbonization mechanisms and evaluating the properties and quality of coals for coke making.

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