Science and Production Association "RIVS" JSC, Saint Petersburg, Russia:

Golovanov A. V., Design Engineer, e-mail: golovanov_a@list.ru

National Mineral Resources University, Saint Petersburg, Russia:

Gabov V. V., Professor, Doctor of Engineering Sciences

Scientific and Technical Firm "Special Ships Equipment and Deep Water Engineering", Saint Petersburg, Russia:

Sapozhnikov A. I., Chief Constructor, Candidate of Engineering Sciences

"URALMASH-ENGINEERING" LLC, Ekaterinburg, Russia:

Chervyakov S. A., Executive Officer of Mining Equipment Division, Candidate of Engineering Sciences

The article considers the existing technological scheme of orepreparation on mining enterprises. It was revealed, that the energy intensity of breakers is in 4,35 times lower than the energy intensity of mills. According to this, the increasing of the reduction degree, realized by breakers, allows to free the part of drum mills or to decrease the part of their power consumption during the process of material disintegration, which leads to the decreasing of the specific power consumption in tote. There was analyzed the dependence of the crushing degree from the strain of the crushed material. There was proposed the new construction of vibro-breaking mill, equipped with the breaking chamber. This chamber has two disintegration zones with the common coarseness decreasing ratio, equal 40. The half-industrial model of the vibro-breaking mill was realized. It is characterized by the increased disintegration ratio of the product. Its half-industrial testings are held. There were proposed the possible technological schemes with application of vibro- breaking mill both in the closed and open cycles.

1. Boyko G. Kh. Gornoe oborudovanie Uralmashzavoda (Mining equipment of Uralmash Machine-Building Corporation). Ekaterinburg : Uralskiy rabochiy, 2003, 240 p.

2. Devyatkin Yu. A., Gnevanova L. E. Gornoe oborudovanie i elektromekhanika — Mining equipment and electromechanics, 2007, No. 7, pp. 44—49.