Technology for Production of Highly Efficient Structural Clay Tiles From Coal Refuse Processing By-Products - Screenings and Coal Slurries
- 10.2991/isees-19.2019.68How to use a DOI?
- structural clay tile; screening; coal; silt; technology; baking; strength.
The paper gives a general characteristic of coal refuse processing products: intermediate fraction - coal-free screenings; small fraction - carboniferous sand containing up to 30% coal; fine fraction - silt coal containing up to 50% coal. Green and baked ceramic properties of products of processing waste coal are demonstrated. Compositions of raw mixes for items with compression strength of over 10-15 MPa with a density of below 800 kg/m3 are substantiated, with considerations for molding with semi-rigid extrusion and requirement of minimizing baking costs. Processing properties of screenings are presented as functions of material grinding and baking temperature. A process diagram has been plotted for a possible production facility using modern equipment. Technical and economic indexes are presented, showing high profitability and promising nature of manufacturing large-size structural clay tiles from the products of processing waste coal thanks to minimal prime cost of the tiles.
- © 2019, the Authors. Published by Atlantis Press.
- Open Access
- This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).
Cite this article
TY - CONF AU - Kh.S. Yavruyan AU - A.S. Okhotnaia AU - V.D. Kotlyar AU - E.O. Lotoshnikova AU - E.S. Gaishun AU - K.P. Chanturia PY - 2019/08 DA - 2019/08 TI - Technology for Production of Highly Efficient Structural Clay Tiles From Coal Refuse Processing By-Products - Screenings and Coal Slurries BT - Proceedings of the International Symposium "Engineering and Earth Sciences: Applied and Fundamental Research" dedicated to the 85th anniversary of H.I. Ibragimov (ISEES 2019) PB - Atlantis Press SP - 476 EP - 481 SN - 2590-3217 UR - https://doi.org/10.2991/isees-19.2019.68 DO - 10.2991/isees-19.2019.68 ID - Yavruyan2019/08 ER -