Road Dust Control

Posts Tagged ‘Mining’

Sandvik’s HX410 electrostatic dust containment system will take on the challenge of transport point dust suppression at German company RWE Power AG. The customer will evaluate the HX410 on a conveyor for lignite and overburden in the Garzweiler open pit mine. The conveyor features a capacity up to 37 500 t/h at a belt speed of 7,5 m/s (twenty five ft/s) and a belt width of 2800 mm (a hundred and ten in).

Until currently, RWE Power AG has used primarily water-sprinkling to reduce the dust to acceptable levels. At a transfer point, RWE Power AG cannot use water-sprinkling as a result of of the coal-on-line-analytic-system that is installed in this place. One double HX410 will be put in on the upstream conveyor and a second double HX410 on the downstream conveyor. Because the Sandvik HX410 has already proven its effectiveness and reliability in more than two hundred applications, RWE Power AG decided to administer it a chance to prove its skills in the foremost demanding environment.

The system is ionization-based and has been designed to bind dust where it is formed. It is a simple system with very low operating and maintenance costs, giving several edges compared to standard “suction-through-filter” or water-based systems. It is appropriate for retrofits or installations on new conveyor systems. The HX410 ensures that chutes, loading points and transfer point don’t generate unacceptable dust emissions. Without proper dust control, each transfer point might generate more air-borne dust that eventually spreads all over the conveyor area. In most applications, a single HX410 is put in right after the chute on top of the belt.

Basically there are 2 completely different commonplace sizes on the market: 1, for belt widths 400 to 650 mm (16 to twenty five in); and 2, for belt widths 800 to 1400 mm (31 to 55 in). For wider belts, custom made constructions can be offered by Sandvik. The power requirement for a commonplace system is below 500 W and maintenance time is less than 1 hour per month. The system picks up particles in the range of 0.01 to one hundred µm. The potency for a median particle size of 5 µm is always on top of ninety%.
Applications and use of the HX410 can be found at bulk material transfer points in industries like: mining, aggregates, steel, cement, foundries, glass and paper. But, it is not appropriate for environments with explosive dust.