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How OJSC Astafyev Terminal in Nakhodka takes concrete steps to combat coal dust - EastRussia |






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Under a thick snow blanket

How JSC Astafyev Terminal in Nakhodka takes concrete steps to combat coal dust

Under a thick snow blanket
At the terminal, a new mobile dust suppression unit has started operation. The range of the new system is up to 90 meters. In winter, it creates a snow cover, in the summer - generates a water mist. A high dust suppression effect is achieved here by means of a sufficient density of pumped fine fog, which is achieved by the arrangement of a large number of nozzles - up to 180 pcs. for one installation. In winter, the plant operates in snow spraying mode. In the dust suppression system, mechanisms are applied that allow the snow to spread to a distance of up to 90 meters in an even layer, with snowflakes having to be heavy enough and stiff to have the ability to linger on the site of ejection and to mate with each other, thus forming a dense covering snow blanket. Such installations successfully provide dust suppression at negative temperatures and a strong wind in the Murmansk commercial port, Vanino, Ust-Luga and other coal terminals.

With the advent of a new installation, the total number of dust suppression devices on the "Astafiev Terminal" has been brought to 6 units, another 4 new installations are on the way to Nakhodka.

At present, most of the measures to reduce the impact of coal dust on the environment have been carried out on the territory of JSC Astafieva Terminal. After concreting the base and reinforcement with metal structures from 13 to 21, the height of the protective grid is increased. The grid is an arch-type structure reinforced with aerodynamic metal panels, on which a polymer grid is installed with the second layer.

In addition, additional measures of production control over the level of dusting have been introduced - the control over the height of the grapple opening during loading onto the vessel has been strengthened. Under adverse weather conditions, the work simply stops.

The next stage is the installation of a closed conveyor line. Three Telestak transloading belt systems, when moving coal around the terminal, exclude its contact with the environment.