AirScrape Conveyor Belt Skirting

AirScrape addresses one specific part of a belt conveyor transfer zone: the interface between the material stream, the moving belt and the side enclosure. The ScrapeTec product documentation describes it as a contact-free skirting system suspended above the belt edge.

How the product works

The product uses angled, hardened lamellae. According to ScrapeTec, their arrangement directs induced air from the outside toward the center of the belt, and the same geometry guides particles that drift toward the belt edge back into the conveyed stream.

That principle differs from conventional flexible skirting, which keeps rubbing contact with the belt. A contact-free arrangement removes continuous skirt drag at this interface. It does not remove the need to inspect belt tracking, belt sag, transfer geometry or material buildup.

Why transfer zone conditions matter

NIOSH engineering guidance identifies belt loading, material travel, return side carryback and discharge as four important locations for conveyor dust release. It describes skirting as one part of a partial enclosure and stresses that enclosure size, displaced air, belt support and local exhaust can all influence the result.

AirScrape belongs in that review as one component of a transfer point system. The assessment has to include the loading chute, material trajectory, belt support, enclosure volume, dust extraction, access and downstream carryback control.

Selection information to prepare

• Material identity, particle size distribution, moisture and abrasion.
• Belt width, profile, speed, direction and expected lateral movement.
• Loading trajectory, feed rate and impact position.
• Available clearance beside and above the belt.
• Displaced air and required dust control performance.
• Inspection, cleaning, guarding and safe isolation method.

Request the current installation instructions and operating limits for the offered size. Safety planning follows the applicable machinery rules together with the site isolation procedure and HSE conveyor guarding and isolation guidance.

Define the acceptance test for AirScrape

Before installation, record the present dust and spillage condition, belt alignment, skirt clearance and extraction settings. After installation, inspect the same operating duty with the same material and throughput.

Useful observations include visible escape at the belt edge, accumulated material, contact marks, belt damage and the maintenance time needed to keep the transfer zone stable. A product video can explain the geometry, but it cannot establish the emissions result for another transfer point. Where an emissions target matters, measure it with a suitable method rather than a before-and-after clip.

Commissioning should also confirm that the lamellae stay clear of the belt throughout normal belt movement and loading. The contact-free principle depends on that geometry, and misalignment or material buildup changes the interface. Record inspection points and safe adjustment steps in the maintenance plan.