News
- 14.08.13
Magnezit Group commissions the seventh high-performance gas-cleaning installation with application of bag filters Scheuch Gmbh
Magnezit Group commissioned at Satka production site (town Satka, Chelyabisnk region) gas-purifying equipment corresponding to the best world analogues. A twin unit with Scheuch GmbH bag filter (Austria) was installed at the Workshop for firing of magnesite powder behind the rotary kiln № 4. Coefficient of efficiency of such a filter amounts to 99,9%. It is already the seventh dust-and-gas-cleaning system, installed at the workshops of Magnezit Group during several recent years. The total volume of investments allocated for implementation of the project amounted at the moment to about 600 million rubles.
In current year analogous equipment was installed and commissioned at the high-temperature shaft furnace Polysius AG, rotary kiln № 1 at the Workshop of Magnesia Powder № 3. Now it is the turn of commissioning of high-performance gas-scrubbing system at the multi-hearth furnace, which is now under construction, as well as projecting of construction of gas-purifying units behind electric furnaces № 1-4 at the Workshop of Magnesia Powders № 4 and behind the 2-nd, 5-th and 6-th rotary kilns at the Workshop of Magnesia Powders № 3.
In 2013 Magnezit Group began creation of system for monitoring of dust emissions: each pipe behind thermal units — rotary kilns, shaft kilns and multi-hearth furnace — will be equipped with special dust counters — control sensors, data from which will be transmitted into unified automated system and will be accessible to the specialists of the company as well as to the wide public.
«Introducing the most novel gas-purifying technologies, corresponding to the best European standards, we don’t simply care for lowering load into the environment, but solve the task of rational use of natural raw materials», told the Head of Department for Environmental Protection of Magnezit Group Oleg Ponomaryov. — «Application of bag filters allows to collect in storage bunkers practically the whole fine-dispersed dust, forming in the process of magnesite firing, and to return this valuable raw material into production cycle. We consider for such modernization of gas purification systems, where a single particle of dust will not fly into the pipe. Investment projects of Magnezit Group always care for protection of environment».
Gas-cleaning units are powerful industrial installations with two-step system of air purification. They include a group of eight cyclones as well as a bag filter consisting of several hundred bags 5 meters long made of high-tech high-temperature material. The units can treat up to 300-360 thousand cubic meters of gas per hour. Dusty air goes through the chamber which consists of a system of bags, and is cleaned for 99,9%. The layer of dust, accumulated on the bags, is regenerated with a stream of compressed air. The dust, consisting of finely dispersed caustic magnesite, falls into the bunker and then is transferred to special concrete vessels and from them — for treatment and production of bricks.