Efficient dust-free open truck loading

BELLOJET ZC Loading Bellows are used for efficient dust controlled discharging of dry, dusty bulk solids into open lorries/trucks. The spouts are provided with inner tapered cones to contain the flow of material and an outer double bellows to provide for dust removal.

Function :

• First the Loading Bellows is lowered from stand-by position towards the truck bed. As soon as the bellows outlet feet touch the bed, a slack cable switch mounted outside the transmission box stops lowering of the bellows.
• The limit switch inside the transmission box stops both full extension and contraction of the bellows. Material loading starts by opening the silo outlet valve.
• During filling of the truck the filter fan continuously sucks dust through the external bellows into the integrated filter cartridges in the upper section of the unit exhausting excess air.
• A level sensor mounted under the dust skirt makes the loading bellows lift progressively maintaining the skirt constantly in contact with the stockpile.
• Contraction of the bellows back to stand-by position is started by the operator via remote control. Once the bellows is fully contracted, the cable limit switch inside the transmission box stops operation.
• The preset after shut-down cleaning cycle now provides for additional pulse-jet cleaning of the filter cartridges for another ten minutes.

Features :

• Inlet diameter: 300 mm (12 in)
• Maximum throughput rate: 250 m3/h (147 cfm)
• Operating temperature: -40 ~ 150 °C (-40 ~ 500 °F)
• Filter surface: 10 m2 (108 sq ft)

Benefits :

• Built-in dust filter reduces dust emission during loading operation