Zapara I.S., Kukhar V.Y. Development and testing of screen with direct vibrative excitation of sieve for titanium carbide

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Parent Category: Geo-Technical Mechanics, 2017

Category: Geo-Technical Mechanics, 2017, Issue 137

 

Geoteh. meh. 2017, 137, 73-79

DEVELOPMENT AND TESTING OF SCREEN WITH DIRECT VIBRATIVE EXCITATION OF SIEVE FOR TITANIUM CARBIDE

¹Zapara I.S., ¹Kukhar V.Y.

¹SHEI «NMU»

UDC 622.74:621.928

Abstract. The article describes difficulties of fine classification by the size of titanium carbide obtained by method of self-expanding high-temperature synthesis. Specificities of the production require operative changing of separation boundary in the range from 60 μm to 630 μm. To solve this problem, it was proposed to use a screen with direct vibrational excitation of the sieve. Design of the developed and manufactured apparatus in explosion-proof version with a working surface area of 0.28 m2 is described. Results of the research tests of the screen are presented, which allow adjusting the screen structural elements to the rational operating mode. It is shown that use of the flow dividers and advanced gaskets of the working surface makes it possible to improve by 93% efficiency of titanium carbide separation by boundary 71 μm and to reduce by 16% oversize clogging by lower class at minimum undersize clogging by the upper class. In the future, it is necessary to investigate by-feeding effect of screen performance on division curves and screening efficiency.

Keywords: screen with direct vibrational excitation of sieve, flow dividers, titanium carbide, division efficiency, clogging of oversize by the lower class.

 

REFERENCES

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About the authors

Zapara Ievgeniy Semenovych, Candidate of Technical Sciences (Ph.D), Associate Professor, Associate Professor in the Department of Mining Machines and Engineering, The State Higher Educational Institution «National Mining University» (SHEI “NMU”), Dnepr, Ukraine, This email address is being protected from spambots. You need JavaScript enabled to view it. .

Kukhar Viktor Juryevich, Candidate of Technical Sciences (Ph.D), Associate Professor, Associate Professor of Department of Mining Machines and Engineering, The State Higher Educational Institution «National Mining University» (SHEI “NMU”), Dnepr, Ukraine, This email address is being protected from spambots. You need JavaScript enabled to view it. .

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