Dust suppression on bulk material conveyor systems

german version

Dust problems arise in almost all industrial sectors at the bulk material transport. 

They not only pollute the production process and the environment but also have a harmful effect to the people. A substantial amount of material is being lost due to the dust development. 

The electrostatic dust suppression system DS160 was developed to eliminate the dust where it arises and then return it to the process or to separate. 

Increased maintenance and operating costs are the result of wear out on all conventional dust suppression systems at the material transfer points.

This is not the case with the DS160. It is a simple system based on ionization with very low operating and maintenance costs. The electrostatic dust suppression system DS160 can be installed in both new as well as in already existing bulk conveying systems. 

It is effective, economical, low maintenance and provides an excellent alternative to the traditional dust extraction.

The electrostatic dust suppression system has been developed especially for conveyor systems and can be sized individually and effectively. However, it is also applicable to other bulk material handling systems. 

As with all electric filters, the separation performance of the DS160 is largely independent of particle size, however, is dependent on the flow rate and the retention time of the dust in the dust binding housing.

DS160 can be used for many bulk materials, particularly of material transfers to stationary and mobile conveyor belts.

The main uses are currently in the following areas of the bulk material handling industry:  

  • mining
  • quarries
  • cement industry
  • steel industry
  • fertilizer industry 
  • foundries
  • glass industry
  • gravel and sand
  • paper industry

The system is a modular construction. It is installed directly behind the conveyor belt transfer on the conveyor belt. Bulk material and dust are passed through the stainless steel dust binding housing, where electrostatic forces on the casing of the DS160 deposit the dust. 

The working principle is based on the principle of ionization of particles in the electric field.

Dust suppression takes place in four steps:

  1. production of free electrons
  2. ionization of the carrier gas
  3. charge of the dust particles
  4. deposition of dust particles on the housing 

According to the type of dust and application a vibration motor runs at regular intervals, which sets the casing in motion and the dust that is deposited on the housing can fall back on the conveyor belt in the material flow or can be collected separately.