Dust, Waste and Trim Extraction

Kooltron design manufactures and installs systems that are effective for the safe removal of dust and waste from production lines. We have practical experience with dust, waste and trim extraction in the woodworking, textile mills, paper printing, shot blasting, foundries, cardboard manufacture, metal fabrication and chemical industries.

The extraction systems collect the waste at the processing machine as it occurs. The waste is automatically removed – thereby reducing risk to the worker and minimising machine down time required for cleaning. In turn, ducting is connected to a large industrial fan to collect and transport the waste. The waste is then removed from the airstream by either a cyclone or a filtration device. In certain applications, a combination of both cyclone and filtration devices are utilised.


Free Standing Waste Collectors

These units are used to collect waste in smaller factories where only one or two waste dust producing points occur. The units range from a 0,75kW one-bag mobile unit to a fixed 18 kW six-bag unit.

Dust and Waste

Kooltron has manufactured and installed many dust extraction plants ranging from 1500m³/Hr to 45 000m³/Hr in size. The plants filter dust that has been extracted off various chemical, paper, food and woodwork manufacturing plants, foundry and milling operations.

These filtering systems vary in how the dust is separated from the air that captures and transports the dust.

For paper trim or wood shavings, a simple cyclone can effectively separate the waste. The very fine dust particles require a filter to ensure the collected dust remains collected. In some instances a cyclone can be used in conjunction with a filter system in order to reduce the dust load on the filter.

The filter system can consist of a series of filter bags that collect the dust. The collected dust can be separated from the filter by manual or motorised shaking of the bags or by reverse pulse.

The most effective method is the reverse pulse. A blast of clean dry compressed air, directed into the filter at timed intervals dislodges the dust off the outer filter surface. These filters can be fabric or paper filters. The filter surface can be specially treated to allow the collection of hydroscopic duct without a “cake” being formed on the filter. The system allows for continuous cleaning of filters while operating at full capacity.

A variety of bag filters or rotating drum filters (self cleaning) are used on their own or combined with cyclones in order to capture waste/dust for disposal. In order to achieve optimum results, the type of filtration device is chosen according to specific operation requirements.