Gases, vapours, solid or liquid particles, substances that are unhealthy, or dangerous for the health of operators are suppressed. They are caputed as and when they are produced, as close as possible their emission source and as efficiently as possible, considering the nature, characteristics and flow rate of pollutants as well as the movements of the air.
Dust extraction systems are employed in a wide range of applications in the corrugated board industry ranging from board cleaning to vacuum transfer belt dust control on high quality printers, some of which involve quite specialised designs.
All our dust extraction systems comply with the relevant legislation including LEV, COSHH and ATEX, where the dust has an explosion risk. Delta NEU dust extraction filters are available certified with explosion relief protection for location in either an ATEX designated zone or a safe, non-ATEX area.
Many of the waste extraction and vacuum transfer applications in printing and conversion contain or create dust particles. Although the extraction systems themselves are not considered to be local exhaust ventilation systems, protecting the operators, the air exhausting from the extraction systems may carry dust at levels which are neither acceptable under the UK COSHH guidelines, or externally under environmental emission limits. Furthermore, as the dust is from a combustible paper product, in a dust cloud of sufficient concentration, there could be an explosion under the ATEX regulations.
To meet the continuous production requirements when selecting dust filters for these applications, Delta NEU chooses the Jetline range. With automatic compressed air cleaning systems, this range offers a proven filter with a continuous performance level. The filters are fully compliant with the ATEX regulations for these dust types and usually fitted be certified burst panels, although alternative flameless relief can be employed if the filter needs to be installed in the factory.
In the corrugated and carton industries, the Jetline filter is also a low maintenance unit, with an extended filter bag life of typically three to five years and a low level of interim maintenance required.
As the dust quantities collected in larger installations can be quite significant, a dust briquette unit can be added. This not only reduces the quantity of dust, due to the high compaction ratio in producing the briquettes, there is little if any dust to be handled making the subsequent disposal of the dust a safer and simpler operation.
See below for a video of our explosion panels being tested:
