Filter units for building materials industry
15 filter plants de-dust 26 dust sources
Beside the big coal and natural gas reserves, Siberia also disposes of an immense potential in lime and marl stone sources. The mineral resources are required as raw material base for the cement production. Because of the Russian „programme for the development of building material industry till 2020“ and the rising demand for cement and chemical construction products, increase the extension of the building material industry. So also in Nowosibirsk. There the company Gerkules-Sibir was founded in 1997. The building material supplier produces the raw materials of the cement industry to dry mortar, gypsum plaster, screed etc.
In 2013 Gerkules modernised its plant 7 and refurbished also the de-dusting units. The order of 15 filter units for de-dusting of 26 dust sources (elevators, crusher, sieves, scale bunker, belt transfer points, packing machines, pneumatic conveying etc.) was awarded to SovPlym, the Russian representative of Infastaub.
Overall the 15 filter units de-dust a total volume flow of > 40,000 m³/h. The different filter units gather, e.g. as silo vent filter (AJB, AJV) or central de-dusting plant (AJL), at different dust sources the dust emissions of gypsum, marble meal, ash, cement and quartz sand. Particular attention on the residual dust content of < 0.5 mg/m³ was paid to the de-dusting of a cement-sand-mixture. For this application a cassette filter type Infa-Micron MKR with non-cleanable secondary filter stage was installed downstream of a pleated element filter.
The air volume of several, synchronal working processes with same dusts are combined in one filter unit in order to keep the total amount of filter units as low as possible. The filter units for plants as scale bunkers and dosing feeder should have a differential pressure as much low as possible and without fluctuations. This is designed with regard to a proper operation of the pressure instruments of the conveying aggregates.
Dmitri Bedochev, technical manager at Gerkules-Sibir, said after commissioning „The professionalism and quality of the carried out works by SovPlym and their competence in questions of de-dusting and ventilation are reason for the decision to award another order about project engineering, delivery and assembly of dust units.“
