Upgrading Hopper Cars for Transportation of Sinter and Other Materials.

Autor: Nefedov, A. F., Shkurko, T. G., Chichenev, N. A., Kholodova, N. V.
Zdroj: Steel in Translation; Nov2022, Vol. 52 Issue 11, p1051-1055, 5p
Abstrakt: The paper considers the results of the operability analysis of transporting equipment used at sintering shops of metallurgical enterprises located in the Urals. It is established that the long-term operation of hopper cars for transporting hot sinter is attended by the sedimentation of dust on the car walls, formation of packed dust bumps as well as by arching. The compaction and thickening of the dust layer reduces the useful volume of the hopper car; in its respect, this raises the need for performing dangerous works to eliminate the dust directly inside the hopper car. The internal hopper car surface is cleaned by manual labor. High dust content and risks of injury make these works very hazardous to human health. To cope with the arching issue and eliminate dust accumulated on the car walls, it is proposed to install two false wall vibration devices together with a vibrating batter board (vibrating beam). The vibrating element of the device is a plate mounted on flexible suspensions on the inner wall (round-link chain). The plate and the hopper wall are separated with the help of a rubber-fabric conveyor belt used as rubber shock absorbers. A vibrator is mounted to the plate through the support rack, and vibrations are transmitted to the sinter using a vibrating batter board welded to the plate (false wall). The designed device reduces unscheduled downtime of a set of hopper cars and allows giving up on the hopper cleaning works hazardous to human health. The economic calculation confirms the feasibility of the steps made for re-engineering hopper cars at sinter production shops of metallurgical enterprises. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index
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