02 August 200713:12

Vysokogorskiy Ore Mining and Processing Enterprise gets new equipment

Workers of Vysokogorskiy Ore Mining and Processing Enterprise’s Magnetitovaya mine are currently busy mastering the company’s only hydrohammer produced by Rammer, a Finnish company. All the employees dealing with this new piece of equipment underwent a three-week training session.

The new hydrohammer is rather powerful and is fitted with an efficient vibration absorbing system; it is expected to enhance the productivity of Magnetitovaya’s grinding and sorting facility by 150% and to make work much less strenuous.

Buying a new hydrohammer for the mine is part of Vysokogorskiy Ore Mining and Processing Enterprise’s development program that presupposes regular investments up to the year 2015.

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Ropes replaced at Magnetitovaya mine of Vysokogorskiy Ore Mining and Processing Enterprise

The main rope supporting the skip of Magnetitovaya-bis groove was replaced at Magnetitovaya mine of Vysokogorskiy Ore Mining and Processing Enterprise (part of Evraz Group). The rope is generally used for transferring ore from the mine onto the surface; such replacements take place every three years and are very labour consuming. The length of the rope comes to over 900 meters, and it is always tested very thoroughly at the rope-testing station of Vysokogorskiy Ore Mining and Processing Enterprise: every wire that is used in the rope is obligatorily examined. The device can actually be used

10 November 200620:15

New weighing equipment installed at Magnetitovaya mine of Vysokogorskiy Ore Mining and Processing Enterprise

New and more precise microprocessor-based weighing facilities were installed at two skip hoistings of Magnetitovaya mine of Vysokogorskiy Ore Mining and Processing Enterprise (part of Evraz Group). These allow for strict control of the volume of ore extracted and provide stable compliance with the target winning figures. The new facility consists of a number of detectors fixed onto the hoistings; depending of the skip motion speed, the rate of current and the voltage, the detectors transfer information on the mass of the load onto the dispatcher’s screen. The machine records the weight of

01 November 200620:15

Vysokogorskiy Ore Mining and Processing Enterprise completes overhaul of grinding and sorting facility

Vysokogorskiy Ore Mining and Processing Enterprise (part of Evraz Group) has almost completed overhaul of its No. 3 grinding and sorting facility used for processing limestone. The company’s contractors and the corporate repair teams have fully restored the jawbreaker (one of the major pieces of equipment). They replaced the old parts of the oil systems and thus eliminated all the leakage. In order to protect the units, they replaced the lining of the sinkhole and repaired the conveyors and shakers. This overhaul makes it possible to stabilize the limestone processing routine as well as cut

15 November 200620:15

Estyuninskaya mine of Vysokogorskiy Ore Mining and Processing Enterprise repairs equipment

Estyuninskaya mine of Vysokogorskiy Ore Mining and Processing Enterprise (part of Evraz Group) repaired the major elements of the equipment used for transporting ore from the lower levels of the mine. These repairs should help the miners avoid any breakdowns and reduce the time wasted while the equipment is being fixed. In order to make sure all the ore is crushed regularly and reliably, the company’s workers fixed the jawbreaker located at -253 meters; the employees of the general contractor restored the skip hoist responsible for crushing magnetite and delivering it onto the surface. Most

29 November 200620:15

Technological blasts conducted at three mines of Vysokogorskiy Ore Mining and Processing Enterprise

In order to provide the reliable performance of Yestyuninskaya, Yuzhnaya, and Magnetitovaya mines, Vysokogorskiy Ore Mining and Processing Enterprise (part of Evraz Group) conducted a number of technological blasts. The total amount of muck with the required iron content came to over 40,000 tons. These technological blasts are tackled under the ground on regular basis; first, depending on the results of the exploration work, the sections of the mine liable to treatment are determined. Then, the blast is conducted with the help of the non-electrical priming system. This method has been used by