How does air circulation and material recycling work in Pekotek's blast rooms?

The short answer is: Air is flow in through the suction channels in the floor. This transports the abrasive material and allows it to be reused in the blasting process.

In this article, we explain our concept in detail and show what makes it so unique.

Visualization of Pekotek’s patented solution

Air is flow in through the suction channels in the floor (2). Simultaneously, the airflow transports the used abrasive material, which collects in the channels, to the classifier (14). From there, the reusable material is returned to the abrasive tank (19). The dust-laden air is then directed to the filter (13).

The filter is equipped with an automatic compressed air pulse cleaning system that loosens the deposits at the bottom of the filter (16). The fan (15) either blows clean air out of the hall (8) (in summer) or returns 80% of the air (6) to the chamber (in winter)

Watch an animation that explains how it works.

The Non-Waste system allows the use of multiple abrasives, such as stone/sand, glass beads, granules, aluminum oxide, etc., in the same chamber.

Principle of air-powered material recovery

In the image below, you can see the red flap in the open position, allowing the abrasive material to be recovered and returned to the blasting process.

It is easy to see that this solution has a very long lifespan, as the stress on the moving parts is minimal.

What are the advantages of air-powered material recovery?

Blast rooms with an air-circulating recovery system offer:

Fewer moving parts, as only one fan drives the recovery process.
Instead of a scraper floor/stripper floor system, an air-powered floor channel system that only opens and closes.
Easier and more precise abrasive material changeover.
Flexible placement and quick installation.
Fewer wear parts, resulting in reduced maintenance costs.

The Non-Waste air-assisted material recovery system is an extremely reliable and simple solution. Pekotek's patented recovery and cleaning system is straightforward, making it particularly energy-efficient and dependable.