Extraction from crane hopper, chip conveyor

Bag filter:




Filter type:

SimPact 4T-R

Dust aspiration


Wood chips/pellets

2 pcs. JM 124/35-04 4T3-R

Filter area, total: 381.9 m²

In this project, we collaborated with a customer in the biomass industry who asked us to install an aspiration system from a double crane hopper.

The challenge

The customer wanted the extraction as close to the dust source as possible to ensure the maximum amount of dust could be captured. Added to that, the customer needed to be able to change the filter bags in any weather. Each crane in the double crane hopper has a capacity of 400 m³ and is erected outdoors on a dockside quay.

We designed a system using SimPact 4T-R construction form 04. This solution allows for uniform extraction along the full length of the hopper, and the filtered dust is returned to the process.

The value

The filters have Penthouse 4T3-R, which means the customer can change the filter bags indoors from the clean-air side. The fan is frequency-controlled to adjust the air volume to the actual requirement. The filters are surface-treated to class C5 and other equipment is corrosion-proof. Dust from the filter is discharged to a belt conveyor underneath by a valve.