Dry dust removal systems are engineered and utilized to remove dust from flowing gases.

Air Clean produces this kind of plant for different industrial sectors such as iron and steel mechanical industry, food industry, aggregate and asphalt industries.

While, the dry dust removal system is used only for dry gases treatment, in fact the presence of liquid would lead to blocking of filers. When there are saturated gas wet systems wet systems are the best solution to be used.

Air Clean selects the most appropriate technology for each individual application.


Cyclones are systems for capturing and abatement of particles with low static energy.

Cyclone dust removal technology is based on the centrifugal force which allows the heavier dust or powder particles to be forced to the outer walls of the cyclone where they coalesce and fall under gravity down the walls to the bottom of the cyclone itself.

A variant of the cyclone technology is the use of multi cyclones: multiple cyclones operating in series. In this configuration it is possible to increase the efficiency and the treatment capacity of the system.

Very often cyclone systems are used as pre-separators for large particles upstream of systems for the removal of very fine dust which pass’s through the cyclone Cyclones are also suitable as they can be used for the removal of high density fine dust particles.

Dry cyclones can also be used for the recovery of raw materials in industrial applications such as chalk dust, or for the separation of food powder, upstream of systems suitable for the collection of very fine dust The cyclones can be used as roughing systems in all the cases in which there is a mass flow of considerable dust, and when you want to reduce the load and protect the downstream air filtering systems.

Cartridge filters

With cartridge filters dust is picked up on the filter cartridges which are coated with synthetic material.

Very often to increase the available uptake surface, the filter material it is pleated or folded.

It is possible to install automatic cleaning systems using compressed air which cleans and separates the dust from the cartridge material regenerating the cartridge separating the captured dust which falls on the bottom of the filter.

Cartridge filter systems typically have lower efficiency and performance than bag filters are often used on applications where space availability is a constraint.

Sleeve filters

The dust filtration can be performed by introducing into the flow to be treated, simple filters made of synthetic material.

Sleeve filters systems are cheaper compared to bag filters and cartridges but, unlike the latter, they are not self-cleaning and when the filter pockets or the flat cells are saturated with dust, they must be removed and disposed of.

There are also available washable impingement filter cells made of metallic material.

These systems while often used for de-dusting, can also be used for the removal of oil mist on industrial applications.

Bag filters

In bag filters dedusting takes place through special filtering fabric sleeves. The materials used depends on the type of powder to be treated. For example, antistatic fabrics can be used where a risk of explosion exists. Bags filter layouts can be customized to suit the available space can be used as a pretreatment for the removal of dust on high temperature gaseous effluents.

The cleaning of the bags filters is generally carried out automatically through the timed injection of high pressure air.

The filter sleeves are normally housed in containers in a parallel configuration. The dust collection occurs on the bottom of these containers through special hoppers which are discharged through rotary valves, screw conveyors or simple guillotine dampers or valves.