Electrohydropulse installation for loosening the adfreezed coal
| Authors: Kim K.K., Shpilev M.A. | Published: 14.02.2016 |
| Published in issue: #1(106)/2016 | |
| Category: Mechanical Engineering and Machine Science | Chapter: Machines, Units and Technological Processes | |
| Keywords: electrohydropulse effect, loosening the adfreezeed coal, shock waves in the liquid | |
The difficulties of unloading the adfreezed coal from the rail carriages in winter constantly lead to financial losses estimated up to hundreds of millions roubles. Therefore, we suggest using the electrohydropulse effect to restore the looseness. By carrying out joint scientific research, we examined the electrical and hydrodynamic processes in the fluid and the mechanical processes in the solid substance. In this paper we give a mathematical model of the electrohydropulse process in the condition of compressing the fluid and deforming the discharge cavity. Moreover, we estimated the obtained pressure in the adfreezed coal and established the quantitative and qualitative interconnection between the electrical parameters of the discharge and the fluid pressure in the spherical cavity.
References
[1] Kim K.K., Shpilev M.A. On the efficient unloading technology for frozen coal. Transport Rossiyskoy Federatsii [Transport of the Russian Federation], 2012, no. 1 (38), pp. 66-67 (in Russ.).
[2] Kim K.K., Shpilev M.A. Razgruzochnyy kompleks [Unloading Complex]. Patent granting for useful model no. 120633 U1, МPK B65G 67/30 B65G 69/20. May, 20. 2012.
[3] Kim K.K., Shpilev M.A. Loosening of Adfreezed Coal by Electric-Hydraulic Method. Mir transporta [World of Transport and Transportation], 2013, no. 2, pp. 48-55 (in Russ.).
[4] Kim K.K., Shpilev M.A. Analysis of the Spatial and Temporal Structure of the Stress State of Frozen Coal under the Influence of Quasi-Point Pulse Loading Sources. Elektronika i elektrooborudovanie transporta [Electronics and Electrical Transport], 2013, no. 4, pp. 12-17 (in Russ.).
[5] Naugol’nykh K.A., Roy N.A. Elektricheskie razryady v vode [Electrical Discharges in the Water]. Moscow, Nauka Publ., 1971. 155 p.
[6] Timoshenko S.P., Goodyear J.N. Theory of Elasticity, N.Y., McGraw Hill.
[7] Semkin B.V., Usov A.F., Kurets V.I. Osnovy elektroimpul’snogo razrusheniya materialov [Fundamentals of Electric Pulse Material Destruction]. St. Petersburg, Nauka Publ., 1993. 276 p.
