Features of Compression Molding of Fine-Disperse Products of Coal Washing When Producing Ceramic Brick

The relevance and possibility of using by-products of the coal industry (BPCI) as raw materials for producing wall ceramic articles are shown. The necessity to classify the byproducts of coal getting is determined. For fractions of 0–0.5 the name is proposed – Fine-disperse products of coal washing (FPC). Main properties, characteristics and material composition of these materials, which factually are ready-made charge for producing wall ceramics, are presented. Features of FPC pressing are also presented. Peculiarities of pressing of fine-disperse products of coal washing when producing high-efficient wall ceramic articles with reduced self-cost by means of compression molding of products are presented. Interconnection between various properties of obtained products depending on the compression conditions and technological factors is established. Within the intervals of the specific pressing pressures from 10 to 40 MPa, the compression factor is from 2.0 to 2.25 units due to the fine-disperse composition of FPC. At this, an ambitious task is put: produce the product with a minimal self-cost with the additional extraction of heat energy when producing the use of which can have a wide spectrum of application.

Kh.S. YAVRUYAN, Candidate of Sciences (Engineering) (This email address is being protected from spambots. You need JavaScript enabled to view it.),
E.S. GAYSHUN, Engineer,
A.V. KOTLYAR, Engineer

Don State Technical University (162, Sotsialisticheskaya Street, Rostov-on-Don, 344022, Russian Federation)

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