Bjerrum Nielsen A/S
Processing exclusive wood products

System description

Complete extraction system consisting of a filter and fan, as well as heat recovery

Total capacity

50,000 m3/h

Task

The factory has expanded its machinery. The existing system of 50,000 m3/h, delivered by Technor ApS in 2018, was no longer sufficient and production experienced problems both in product quality and working environment. Furthermore, there was a build-up of waste in the existing transport system, due to a larger volume of waste.

Solution

An addition to the existing capacity with a corresponding new energy efficient chip extraction system, bringing the total capacity to 100,000 m3/h. 

The very tight space meant that the top of the old filter had to be dismantled and reversed to make room for new pipework

The system is demand-controlled via automatic valves, so only the absolutely necessary amount of air is extracted. 

The filter discharge is passed through cross-exchangers for recovery and heating the replacement air, which is blown into production via inlet bags.

Waste is handled via an existing chain conveyor that carries the chips to two containers. Technor ApS has also supplied a new and larger transverse conveyor for the distribution of chips between the two containers. 

The existing conveyor was also fully serviced for optimal operation.


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