Equipment / Dust collection
Extraction where the dust starts: the bag chamber, the weigh hoppers, the mixer inlet and transfer points. Pulse-jet bag filters, cleaned offline one compartment at a time.
Dust is easiest to catch right where it's made.
So each dusty step gets its own hood or connection: the bag chamber, each weigh hopper, the mixer. Ducts go to a local collector or to one central filter, and where the process allows, what's caught goes back into it.
Layouts
On a bulk bag unloading station the collector sits on the back of the chamber, and the dust it catches drops straight back into the buffer hopper.
See bulk bag unloadingThe powder scales discharge into the mixer, and the mixer's exhaust goes to the dust system, so the dust from charging and mixing is filtered in one place.
In one retrofit, the mixer and the ash scale were ducted to the existing filter on the silo roof instead of adding another one.
Our bag filters
Coarse and hot particles drop straight into the hopper before they reach the bags.
The same capacity on a smaller footprint, which helps in retrofits where floor space is short.
Each compartment is shut off while it is pulsed, so less dust settles straight back onto the bags. Bags can be changed one compartment at a time while the system keeps running.
Spring snap-band bag collars that are quick to change and seal well. Casing welds are leak-tested with kerosene to keep air leakage down.
Automatic pulse cleaning and dust discharge, temperature control and an over-temperature alarm.
Examples
| Bulk bag unloading station | Back-mounted collector, 2.2 kW; dust returns to the buffer hopper |
|---|---|
| Compact stabilization station | Pulse-jet collector at the ash scale; feed-point collector designed for 800 m³/h |
| Mixer on a stabilization line | A simple bag filter on the mixer, made in our workshop |
| Washing front end | Hoods on the back of the bag unloader and on top of the slurry tank, enclosed conveying everywhere else; 60 m of horizontal ductwork |
Questions buyers ask
With PTFE-membrane filter bags our collectors are designed for outlet dust below 10 mg/Nm³. The guaranteed figure is confirmed against your dust data and the limit in your permit.
Yes. On one retrofit the mixer and the ash scale were ducted to the existing filter on the silo roof instead of adding another one.
Yes. Cleaning and bag changes are done one compartment at a time while the rest keeps running.
Where the process allows, it goes back into the process, for example into the buffer hopper of a bag unloading station.
Activated carbon, starch, coal dust and the like need an explosion-risk assessment first.
A 12-month warranty on manufacturing faults, spare parts in stock for the life of the machine, 24-hour technical support, and engineers who supervise installation, commission the equipment and train your staff on site.
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